EXCHANGE 
 
 FEB 14 1916 
 
 PRESENTED 
 
 BY 
 
 OF 
 
 THE BRITISH MUSEUM. 
 
EXCHANGE 
 
 BIOLOGY 
 LIBRARY 
 
 fi 
 

THE 
 
 SYBPHIM OF THE ETHIOPIAN REGION 
 
 BASED OX 
 \ 
 
 MATERIAL IN THE COLLECTION 
 
 OF THE 
 
 BRITISH MUSEUM (NATURAL HISTORY), 
 
 \- 
 
 WITH 
 
 DESCRIPTIONS OF NEW GENERA AND SPECIES. 
 
 BY 
 
 PROFESSOR MARIO BEZZI. 
 
 LdNDOX: 
 
 ) B\' dRl)ER OF THE TRUSTEES OF THE 
 BRITISH MUSEUM. 
 
 LONGMANS, GREEN & Co., 39 PATERNOSTER ROW, LONDON, E.C.; 
 B. QUARITCH, 11 GRAFTON STREET, NEW BOND STREET, LONDON, W. ; 
 
 DULAU cSc Co., LTD., 37 SOHO SQUARE, LONDON, W. ; 
 THE MIDLAND EDUCATIONAL Co., LTD., CORPORATION STREET, BIRMINGHAM; 
 
 AXD AT THE 
 
 BRITISH MUSEUM (NATURAL HISTORY), CROMWELL ROAD, S.W, 
 
 191.5. 
 

 BIOLOGY 
 
 LIBRARY 
 
 6 
 
 1'RINTKI) IiY TAYLOK A X 1> 1-RA^CIS. 
 KKI) I.loN COI'liT, ri.KHT >TUKKT. 
 
PREFACE. 
 
 THE present work by Prof. Mario Bezzi, which gives an 
 account of the African Diptera of the family Syrphidge, and 
 which greatly advances our knowledge of those insects, has 
 only been made possible by the richness and completeness 
 of the collections submitted to him for examination, by the 
 Imperial Bureau of Entomology. These collections are now 
 in the British Museum (Natural History), to which they 
 have been presented by the Imperial Bureau, and have added 
 very considerably to the importance and value of the 
 collection of Syrphida? already there. 
 
 The thanks of the Trustees are due to Mr. Gray A. K. 
 Marshall. Director of the Imperial Bureau, for the care with 
 which he had revised the greater part of the MS. for the 
 press. Mr. E. E. Austen and Mr. F. W. Edwards have also 
 rendered assistance in correcting proofs and in other ways in 
 which their special knowledge of the Diptora has been of 
 great advantage. 
 
 CHARLES J. GAHAN. 
 
 BRITISH MUSEUM (\ATURAL HISTORY;. 
 March 1915. 
 
 328462 
 

 The Syrphidse of the Ethiopian Region. 
 
 INTRODUCTION. 
 
 THE extensive collection of Ethiopian Syrphidse, sent me for study 
 from the Imperial Bureau of Entomology, enables us to obtain a 
 better idea than has hitherto been possible of the Syrphid fauna of 
 this Region. 
 
 The Syrphidae form a very large family, numbering about 2300 
 described species *, which are to be found in all parts of the world ; 
 from the Ethiopian Region, however, comparatively few species 
 are known. The number hitherto recorded from this Region is 
 only ISO, to which, in the present contribution, are added 60 new 
 forms, thus bringing the whole number of the species at present 
 known up to 249. A catalogue of these is appended (pp. 3-5). 
 
 A striking characteristic of the Ethiopian Syrphid fauna is the 
 complete absence of Pipiza and allied genera, and also of Platy- 
 cliirus and Chilosia, two genera which are abundantly represented 
 in the Palaearctic Region. The Mediterranean genus Jlerodon is 
 scarcely to be found, while Xylota, JL'lesia, Chrysotoxum, and 
 their allies are also very poorly represented or entirely wanting. 
 Very notable is the almost complete absence of the genus Volucella, 
 which has only a single little-known species, although a second one 
 has been introduced from Tropical America. 
 
 * In Kertesz's ' Catalogus Dipterorum,' vol. vii. (1910), 123 genera and 
 2162 species are recorded as known at the end of the year 1907. 
 
TXTTtODUCTTON. 
 
 A special feature of the Region is the richness and variety of 
 the genera Asarcina, Graptomyza, Syritta, and Eumerus ; there 
 are also many peculiar forms of Microdon. But the most prominent 
 character is to be found in the great development of the forms 
 of the Hlristalis-gro\ip. The genus Protylocera is exclusively 
 Ethiopian*, and the genera Phytomia (Megaspis), Simoides, Lathy - 
 rophthalmus, and Eristalodes are very rich in characteristic species. 
 The genus HelopJiilus is almost entirely restricted to the subgenera 
 Mesemlrius and Prionotomyia. 
 
 In the following pages descriptions of the new genera and new 
 species are given, together with tables of all the genera and species 
 represented in the collection and remarks on the previously described 
 forms. 
 
 I have to thank Mr. Guy A. K. Marshall, the Director of the 
 Imperial Bureau of Entomology, for having placed at my disposal 
 such an important collection of Ethiopian Syrphidae, which is 
 without any doubt the most extensive yet brought together. 
 
 * The South- American Eristalis nigripennis, Macquart, which, according 
 to Dr. Speiser (Jahrbiich. d. Nassauisch. Ver. f. Naturk. i. Wiesbaden, Ixvi. 
 1913, p, 122), belongs to Protylocera, is really a true Eristalis. 
 
INTRODUCTION. 
 
 LIST OF THE KNOWN ETHIOPIAN 
 SYRPHIM;. 
 
 STEPHIN^E. 29. 
 
 1. Paragus longiventris, Loeir. 
 
 2. ,. serratus. Fabr. 
 
 3. borbonicus, Macq. 30. 
 
 antimenes, Walk. 31. 
 
 latecinctu*. Big. 32. 
 
 latut, Walk. 33. 
 
 niidipennia, Loew. 34. 
 
 4. ., marshalli. sp. n. 35. 
 
 5. ., dolichocerus. sp. n. 36. 
 
 6. tibialis. Fall. 37. 
 
 rtn-, substitutes, Loeic. 38. 
 
 cm-, haemorrhous, Meig. 39. 
 
 rar. triangulii'eru.s. Zett. 40. 
 
 7. Chrysogaster (Orthoneura) poecilops, 41. 
 
 sp. n. 
 
 8. poecilophthalma, 
 
 Bezzi. 
 
 9. spiloptera. sp. n. 
 lu. .. Icevigata, sp. n. 
 
 11. Melanostoma bituberculatum, Loew. 42. 
 
 bituberculatnm, Ad. 43. 
 
 12. floripeta. Spei^. 44. 
 
 13. scalare. Fabr. 
 
 14. annulipes, Macq. 46. 
 
 rar. automenes. Walk. 47. 
 
 rar. annulatum, Big. 48. 
 
 rar. pyrophaenoides, 49. 
 
 Spei#. 50. 
 
 rar. mauritiamim. Big. 51. 
 
 rar. gymnocerum, Big. 52. 
 
 15. infuscatiim. Beck. 53. 
 
 16. alticola. Spei*. 54. 
 
 17. Asarcina ericetorum. Fobr. 55. 
 
 an I rise. Fabr. 56. 
 
 i-ar. gemmata, var. n. 
 
 rar. usambarensis. B?:zi. 
 
 rar. punctifrons. Aunt. 57. 
 
 rar. albifacies. var. n. 58. 
 
 ?-ar. africaiia. /.' 50. 
 
 18. minor, sp. n. 60. 
 11. .. amoena. Aunt. 61. 
 
 fiorii. Bez-i. 62. 
 
 21. .. eremophila. Loev. 63. 
 
 22. ,. rostrata. Wied. 
 
 23. ,, hirsuticeps, sp. n. 
 
 24. angustata, Bed: 64. 
 
 25. Lasiopticus pyrastri. L. 65. 
 
 26. Syrphus capensis, Wied. 66. 
 
 27. ,, eutaeniatus, sp. n. 67. 
 
 28. inflaticornis. p. n. 68. 
 
 Syrphns adligatus, Wied. 
 
 var. tricolor, Walk. 
 >v/,-. melas, var. n. 
 intersectus, Wied. 
 claripennis, Loeu\ 
 hirticeps, Loew. 
 cognatus, L< ><: 
 trisectus, Loeic. 
 redivivus, sp. n. 
 schultzianus, Bezzi. 
 feae, Bezzi. 
 cinctifacies, Speis. 
 Sphaerophoria riippellii, Wied. 
 
 quadrituberculata, sp. n. 
 
 Xanthogramma aegyptium, Wird. 
 
 brachyptemm, Thorns. 
 felix. Walk. 
 fuscotibiale, Macq. 
 longicorne, Macq. 
 nataleiise, Macq. 
 senegalense, Gue'r. 
 
 pyrrhurum, Big. 
 
 incertum. Wie<L 
 
 bifasciatum, Macq. 
 
 borbonicmn, Big. 
 
 rottmdicorne. Loeic. 
 dentatiun, Walk. 
 pfeifFeri, Big. 
 calopus, Loetr. 
 notogramina, Bezzi. 
 Ocyptamus rotundiceps, Loeu: 
 pedunculatus, Big. 
 Baccha conifrons, sp. n. 
 ichneumonea, sp. n. 
 picta. Wied. 
 
 rittata, Wied. 
 rur. superpicta, var. 11. 
 ewryptera, Bezzi. 
 grahami. sp. 11. 
 helva. sp, n. 
 neavei, sp. n. 
 extranea, sp. n. 
 
 maiginata, sp. n. 
 sapphirina, Wied. 
 flamcornit, Loow. 
 pit-net um. Big. 
 prasusta, sp. n. 
 claripennis, Loen\ 
 brevis. Karsch. 
 Ehingia lutea, sp. n. 
 ine^yana. Siteia. 
 
 B2 
 
[NTBODUCTION, 
 
 C9. Rhingia semicaerulea, A "*/. 
 
 70. pellucens, sp. n. 
 
 71. cserulescens, Loew. 
 
 var. fuscipes, var. n. 
 
 72. ,, cserulea, Bezzi. 
 
 73. ,, pycnosoma, sp. n. 
 
 74. cyanoprora, Speis. 
 
 75. ,, ptilcherrima, Bezzi. 
 
 76. ,, orthoneurina, Speis. 
 
 VOLUCELLIN^E. 
 
 77. Volucella capensis, Scliin. 
 ? obesa, F. 
 
 78. Graptomyza suavissima, Karsch. 
 
 79. ,, vittigera, Big. 
 
 80. ,, triangulifera, Big. 
 
 melanura, Bezzi. 
 pentaspila, Bezzi. 
 
 81. ,, xanthopoda, sp. n. 
 
 82. aurea, sp. n. 
 
 83. nigra, sp. n. 
 
 84. signata, Walk. 
 
 85. varia, Walk. 
 
 MERODONTIIOE. 
 
 86. Protylocera aperta, Bezzi. 
 
 87. dibaphus, Walk. 
 
 yypseiaq ua-ma, Speis. 
 riifonasuta, Big. 
 sulfurata, Speis. 
 
 88. elliotii, Aust. 
 
 var. claricella, Speis. 
 Hi>. ,, melanthyrana, Speis. 
 
 90. ,, flaviceps, Macq. 
 
 91. arnciis, Walk. 
 
 latevittata, Big. 
 manilipennis, Loew. 
 var. livida, Bezzi. 
 
 92. ,, umbrifera, Walk. 
 
 93. ? notata, Big. 
 
 94. xanthorrhoea, Bezzi. 
 
 95. , haemorrhoa, Gerst. 
 
 96. , griseifacies, Bezzi. 
 
 97. , nigrita, Big. 
 
 98. , apophysata, sp. n. 
 
 99. , cuprea, Macq. 
 
 100. Phytomia bullata, Loew. 
 
 101. , aurigera, sp. n. 
 
 102. kroeberi, Bezzi. 
 
 103. neavei, sp. n. 
 
 104. bulligera, Aust. 
 105.- pubipennis; sp. n. 
 
 106. erratic a, Bezzi. 
 
 107. curta, Loew. 
 
 108. natalensis, Nacq. 
 
 109. fucoides, sp. n. 
 
 110. fronto, Loeiv. 
 
 var. melas, var. n. 
 
 111. Phytomia ephippium, Bezzi. 
 
 112. villipes, Loew. 
 
 var. femoralis, var. n. 
 
 113. ,, poensis, Bezzi. 
 
 114. ,, incisa, Wied. 
 
 assimilis, Walk. 
 capito, Loew. 
 
 115. Simoides crassipes, Fabr. 
 
 pachymera, Wied. 
 
 116. expleta, Loew. 
 
 117. ,, descendens, Beck. 
 
 118. Lathyrophthalmus modestus, Wied. 
 
 analis, Macq. 
 
 119. myiatropinus, Speis. 
 
 120. gymnops, sp. n. 
 
 121. euzonus, Loew. 
 
 var. andersoni, 
 var. n. 
 
 122. longicornis, Ad. 
 
 123. ,, melanops, Karsch. 
 
 decolor, Karsch. 
 
 124. nigricans, Win I. 
 
 iiigrii-onii*, Loew. 
 
 125. 
 
 126. ,, 
 
 127. 
 
 128. 
 
 129. 
 
 130. ,, 
 
 131. 
 132. 
 133. 
 134. 
 135. 
 136. 
 137. 
 138. 
 
 139. 
 140. 
 141. 
 
 142. 
 143. 
 144. 
 145. 
 146. 
 147. 
 148. 
 149. 
 150. 
 151. 
 ]52. 
 
 amrenus, 
 metallescens, 
 nitidiventris, 
 viridulus, Macq. 
 sexvittatus, Big. 
 qiiinquelineatus,.FYfl>r 
 fni nctifer, Walk. 
 var. tabanoides, 
 
 Jaeitti. 
 
 trizonatus, Big. 
 flaveolus, Big. 
 xanthopus, sp. n. 
 vicarians, sp. n. 
 dulcis. Kcu'ttch. 
 dissimilis, Ad. 
 smaragdinus, Macq. 
 Eristalodes plurivittatus, Macq. 
 
 seqnalis, Ad. 
 ,, barclayi, sp. n. 
 
 ,, macrops, Karscli. 
 
 tffiniops, Wied. 
 
 xyyptiits, Walk. 
 communis, Ad. 
 torriduts, Walk. 
 ,, fuscicornis, Karsch. 
 
 ,, seychellarum, sp. n. 
 
 Eristalis tenax, L. 
 
 ,, dasyops, Wied. 
 ,, plumipes, Bezzi. 
 ., haplops, Wied. 
 ,, trichopus, Big. 
 ,, pallidibasis, Big. 
 ,, meromacrit'ormis, sp. n. 
 convexifacies, Macq. 
 Helophilus (Mesembrius) 
 
 capensis, Macq. 
 coffer, Loew. 
 
IXTIIODUCTKXN". 
 
 153. 
 
 154. 
 155. 
 156. 
 157. 
 
 158. 
 159. 
 160. 
 161. 
 K)2. 
 163. 
 164. 
 165. 
 166. 
 167. 
 168. 
 169. 
 170. 
 
 171. 
 
 172. 
 173. 
 174. 
 
 175. 
 176. 
 177. 
 
 178. 
 179. 
 
 180. 
 181. 
 182. 
 183. 
 184. 
 185. 
 186. 
 187. 
 188. 
 189. 
 190. 
 191. 
 192. 
 193. 
 194. 
 195. 
 196. 
 197. 
 198. 
 199. 
 
 
 Helophilus (Mesembrius) lagopus, 
 Loeic. 
 
 strigilatus, Bezzi. 
 
 ,, minor, sp. n. 
 
 ,, ,, africanus, Verr. 
 
 ., senegalensis, 
 
 Macq. 
 
 .. cyanipeunis,sp.n. 
 
 .. morio, sp. n. 
 .. longus, Walk. 
 sejtmctus, Walk. 
 ingratus, Loeic. 
 tarsatus, Big. 
 perforatus, Speis. 
 Mallota extrema, Loeic. 
 aenigma, Bezzi. 
 ,, pachymera, sp. n. 
 Merodon planifacies, sp. n. 
 melanocerus, sp. n. 
 nasicus, Bezzi. 
 
 funebris, olim. 
 ,, edentulus, Macq. 
 
 XYLOTIN-E. 
 
 Tropidia dicentria, Speis. 
 Chasmomma femoratum. sp. n. 
 Syritta spinigera, Loeic. 
 
 armipes, Thorns. 
 
 fflaviventnt, Macq. 
 
 ? nigricornis, Macq. 
 
 spinigerella, Thorns. 
 
 ritriiiennis, Big. 
 ,, acnleipes, Schin. 
 latitarsata, Macq. 
 bulbus. Walk. 
 bulbulus, Speis. 
 fasciata. Wied. 
 
 abyssinica, Rond. 
 albifacies, Big. 
 flavopicta. Big. 
 leucopleura, Big. 
 stigmatica, Loeir. 
 pleuritica, Speis. 
 decora, Walk. 
 ,. nigrifemorata, Macq. 
 
 austeni, sp. n. 
 
 Megatrigon sexfasciatus, John*. 
 Eumerus rubiginosus, H.-B. 
 
 argenteus, Walk. 
 
 atrovarius, Speis. 
 
 lugens, Wied. 
 
 jacobi, H.-B. 
 
 argyropsis, Bezzi. 
 
 paulae, H.-B. 
 
 serratus, sp. n. 
 
 maculipennis, sp. n. 
 
 armipes, sp. n. 
 
 seuber. sp. n. 
 
 feav / 
 
 201. Eumerus lunatus, Fabr. 
 
 202. .. axinecerus, Speis. 
 
 203. rufipes, H.-B. 
 
 204. ., quadrimaculatus, Macq. 
 
 205. ., bequaerti, H.-B. 
 
 206. ,, erythrocerus, Loew. 
 
 207. triangularis, H.-B. 
 
 208. villeneuvei, H.-B. 
 
 209. .. unicolor, Loew. 
 
 210. vestitus, Bezzi. 
 
 211. obliquus, Fabr. 
 
 cilitarsis, Loew. 
 
 212. Amphoterus cribratus, sp. n. 
 
 213. " Milesia " canusium, Walk. 
 
 214. Phalacromyia nigriceps, Schin. 
 
 CHBYSOTOXIN^E. 
 
 215. Chrysotoxum continuum, sp. n. 
 
 intermedium, olim. 
 
 216. 
 217. 
 218. 
 219. 
 220. 
 221. 
 222. 
 223. 
 224. 
 225. 
 226. 
 227. 
 228. 
 229. 
 230. 
 231. 
 232. 
 233. 
 234. 
 235. 
 
 236. 
 237. 
 238. 
 239. 
 240. 
 241. 
 242. 
 243. 
 244. 
 245. 
 246. 
 247. 
 248. 
 _>U. 
 
 MlCRODONTIN-E. 
 
 Microdon illucens. sp. n. 
 
 acantholepidis, Speis 
 
 .. brevicornis, Loew. 
 
 .. testaceus, Walk. 
 
 tarsalis, H.-B. 
 
 obesus, H.-B. 
 
 punctnlatus, Wied. 
 
 ,. rugosus, sp. n. 
 
 cremastogastri, Speis. 
 
 ,. apis. Speis, 
 
 captus, Speis. 
 
 mydas, sp. n. 
 
 ,, erythrocephalus, sp. n. 
 
 ,, luteiventris, sp. n. 
 
 ., erythros, Bezzi. 
 
 .. gethiopicus, Rvnd. 
 
 ,. inermis, Loew. 
 
 ,, pallidus, sp. n. 
 
 villosus, sp. n. 
 Ptilobactrum neavei, sp. n. 
 
 Cerioides afra, Wied. 
 
 ., hopei, Sound. 
 
 pulchra, H.-B. 
 
 speiseri, H.-B. 
 
 neavei, sp. n. 
 
 .. brunnipennis, Loev\ 
 
 congolensis, Bezzi. 
 
 .. ammophilina, Speis. 
 
 caffra, Loeic. 
 
 .. gambiana, Saund. 
 
 .. frenata, Loeic. 
 
 .. maculipennis, H.-B. 
 
 .. divisa. Walk. 
 
 .. h.v.zii. H.-B. 
 
 >-<n: nuu-iriiialis. var. n. 
 
!_ A. 
 
 F.L. 
 
 H 
 
 H.L. 
 
 EXPLANATORY DIAGRAM. 
 
 H, 
 
 F, 
 
 Y, 
 
 E, 
 
 A, 
 
 T, 
 
 Sc, 
 
 AB, 
 
 i-vii, 
 
 S, 
 
 H, 
 
 W, 
 
 F.L., 
 
 TA, 
 CL, 
 
 ..C, Costa. 
 
 M, Mediastinal (Auxiliary) vein. 
 L 6 , First to Sixth Longitudinal veins. 
 X, kink in 3rd longitudinal vein. 
 L 7 , Axillary vein. 
 
 Head. 
 
 Frons. V, Vertex. 
 
 Occiput. 
 
 Eye. O, Ocelli. 
 
 Antenna. An, Arista. 
 
 Thorax. Su, Suture. 
 
 Scutellum (part of mesothorax). 
 
 Abdomen. 
 
 1st to 7th Abdominal Segments. 
 
 Squama (the author's squamula). 
 
 Haltere. 
 
 Wing. 
 
 M.L., H.L., the front, middle and 
 
 hind legs. 
 
 Femur. T, Tibia. 
 Tarsus (5 -jointed). 
 Claw. 
 
 UM, Upper Marginal or Subapical Cross 
 vein (bent-up portion of 4t 
 long. vein). 
 
 LM, Lower Marginal or Postical Cross 
 vein (bent-up portion of uppc 
 branch of 5th long. vein). 
 B, Humeral Cross- vein. 
 D, Anterior or middle Cross-vein. 
 G, Lower or small Cross-vein. 
 V.S., Vena Spuria. 
 
 Cells. 
 
 1, 2. First and Second Costal Cells. 
 
 3. Subcostal or Third Costal Cell. 
 
 4. Marginal Cell. 
 
 5. Submarginal Cell. 
 
 6. First Posterior or Subapical Cell. 
 
 7. Discal or 2nd Posterior Cell. 
 
 8. Third Posterior Cell. 
 
 9. Axillary Cell. 
 
 10. First Basal Cell. 
 
 11. Second Basal Cell. 
 
 12. Anal Cell. 
 
 13. Alula. 
 
Family SYRPHID.E: 
 
 The genera in the collection can be distinguished as follows : 
 
 1 (46) Antennae short or of moderate length, 
 
 not porrect, and not longer than the 
 head ; if they are elongate, there are 
 distinct macrochaeta3 on thorax and 
 scutellura. 
 
 2 (21) Small cross-vein before the middle of 
 
 the discal cell ; marginal cell always 
 open. 
 
 3 (20) Third antennal joint usually short, 
 
 never linear, nor much longer than 
 the two preceding joints together; 
 vena spuria well developed ; thorax 
 and scutellum without macrochoetie ; 
 eyes of male usually touching. 
 
 4 (19) Face not or but little produced below, 
 
 without a snout-like projection ; 
 third longitudinal vein not curved 
 backwards but depressed, ending at 
 the tip of wing or before it ; if 
 this vein is curved backwards, the 
 abdomen is stalked ; first and second 
 longitudinal veins of usual length. 
 
 5 (18) Abdomen of normal shape, neither 
 
 tubular nor stalked ; if it is a little 
 constricted towards the base, the 
 discfll cell is much shorter than the 
 subapical one. 
 
 6 (9) Discal cell much shorter than the sub- 
 
 apical cell ; face without a distinct 
 tubercle and abdomen without yellow 
 markings. 
 
 7 (8) Fourth longitudinal vein prolonged to 
 
 the hind border beyond the upper 
 marginal cross-vein ; face of a yellow 
 colour, not hollowed above and 
 without a prominent edge below . . PARAGUS, p. 11. 
 
 8 (7) Fourth longitudinal vein at most 
 
 forming a short stump beyond the 
 upper marginal cross-vein ;*face of a 
 black colour, hollowed above and 
 with a prominent edge below CHKYSOGASTKB, p. 15 
 
 9 (6) Discal cell as long as the subapical, or 
 
 if a little shorter, then the face 
 provided with a distinct tubercle or 
 the abdomen adorned with yellow 
 spots or bands. 
 
10 (11) Face and scutellum entirely black; 
 
 thorax provided on the sides above 
 the notopleural depression and before 
 the transverse suture with a rather 
 prominent tubercle ; discal cell 
 shorter than the subapical one .... 
 
 11 (10) Face and scutellum yellow; thorax 
 
 without such a prominent tu':ercle 
 on the sides ; discal cell as long as 
 or only a little shorter than the sub- 
 apical one. 
 
 12 (15) Thorax without a sharply defined 
 
 yellow stripe on the sides, or with a 
 very short one, which does not pass 
 the suture ; abdomen usually broad 
 and oval in shape. 
 
 13 (14) Thorax provided in front with a distinct 
 
 collar of hairs ; opening of buccal 
 cavity narrow and linear; ocelli at 
 some distance from the vertex .... 
 
 14 (13) Thorax without a distinct collar ; 
 
 opening of buccal cavity short and 
 oval; ocelli placed near the vertex. . 
 
 15 (12) Thorax with a sharply defined yellow 
 
 notoplenral stripe, which passes the 
 suture and usually reaches the scu- 
 tellum ; abdomen narrow and with 
 parallel ndes. 
 
 16 (17) Abdomen narrower than the thorax, 
 
 not flattened, usually longer than 
 the wings ; male genitalia very large 
 and orbicular 
 
 17 (16) Abdomen as broad as or a little broader 
 
 than the thorax, flattened, shorter 
 than the wings ; male genitalia of 
 smaller size 
 
 18 (5) Abdomen stalked, often tub ulnr; discal 
 
 cell a little shorter than the subapical 
 one ; face tuberculate 
 
 19 (4) Face with a very prominent snout- 
 
 like projection below ; third vein 
 curved backwards and ending be- 
 yond tip of wing ; first and second 
 veins very long 
 
 20 (3) Third antennal joint linear, very elon- 
 
 gate, many times longer than the 
 iirst two joints together ; subapical 
 and posterior cross-veins recurrent ; 
 vena spuria wanting; thorax and 
 scutellum provided with macro - 
 cheetre : eyes of male separated .... 
 
 21 (2) Small cross-vein near or beyond the 
 
 middle of the discal cell. 
 
 22 (39) Third vein with a deep sudden down- 
 
 wardly directed kink about middle 
 of the subapical cell. 
 
 MELANOSTOMA, p. 18. 
 
 ASARCINA, p. 21. 
 SYHPHUS, p. 29. 
 
 SPH^ROPHOIUA, p. 35. 
 
 XANTHOGRAMMA, p. 36. 
 BACCHA, p. 38. 
 
 RHINGIA, p. 50. 
 GRAPTOMYZA, p. 55. 
 
SYKPHID-E. 9 
 
 23 (34) Marginal cell closed and usually pro- 
 
 vided with a long stalk ; if it is 
 shortly stalked or even narrowly 
 open, then the kink in the third vein 
 is angular and appendiculated. 
 
 24 (29) Eyes bare ; kink in third vein deep and 
 
 usually appendiculated ; scutelluni 
 of larger size, margined. 
 
 2o (26) Subcostal and marginal cells at end 
 about of equal length, the stalk of 
 the latter cell being very short ; eyes 
 adorned with pale spots and touching 
 in the male, the vertical triangle 
 being in the same sex long and 
 narrow ; frons of female narrow ; 
 antennal tubercle very prominent ; 
 wings pubescent all over their sur- 
 face PKOTYLOCERA, p. 61. 
 
 26 (2o) Marginal cell much shorter at end 
 
 than the subcostal one, the former 
 having a long stalk ; eyes without 
 pale spots, often adorned with hori- 
 zontal dark bands; vertical triangle 
 of the male short ; antennal tubercle 
 not prominent ; wings entirely bare, 
 or pubescent only on limited areas 
 near the middle or towards the 
 tip. 
 
 27 (28) Eyes of male touching and provided 
 
 with larger facets above ; head very 
 swollen, the frons with a denudate 
 callose area above the antennae and 
 also very broad in the female ; hind 
 femora not thickened; wings bare, 
 very rarely pubescent towards the 
 middle PHYTOMIA, p. 65. 
 
 28 (27) Eyes of male widely separated and 
 
 with small facets above ; head not 
 swollen, without a supra-antennal 
 callosity ; frons of female narrow ; 
 hind femora strongly thickened ; 
 wings pubescent towards tip SIMOIDES, p. 76. 
 
 29 (24) Eyes hairy, at least above ; if bare, 
 
 'they have brown spots ; kink in the 
 third vein broad and rounded, never 
 appendiculated ; seutellum of ordi- 
 nary size, not margined. 
 
 30 (33) Eyes hairy only above or rarely wholly 
 
 bare, adorned with dark spots or 
 with dark stripes. 
 
 31 (32) Eyes with brown spots, sometimes 
 
 bare and sometimes separated in the [p. 77. 
 
 male LATHYROPHTHALMUS, 
 
 32 (31) Eyes adorned with brown perpendicular 
 
 stripes: eyes of male always united 
 
 and always hairy ERISTALODES, p. 87. 
 
10 
 
 33 (30) Eyes equally hairy above and below 
 
 (never spotted or banded), or with 
 dark bands, which are formed by 
 hair alone ERISTALIS, p. 92. 
 
 34 (23) Marginal cell broadly open. 
 
 35 (38) Hind femora simple, without a tooth- 
 
 like process beneath at end ; sub- 
 apical cross-vein not recurrent. 
 
 36 (37) Eyes bare HELOPHILUS, p. 94. 
 
 37 (36) Eyes hairy MALLOTA, p. 98. 
 
 38 (35) Hind femora with a distinct tooth-like 
 
 process ; subapical cross-vein recur- 
 rent MERODON, p. 100. 
 
 39 (22) Third vein not kinked, or rarely with 
 
 a slight undulation ; marginal cell 
 open. 
 
 40 (45) Second autenual joint short, as 
 
 usual. 
 
 41 (42) Face with a distinct tubercle ; third 
 
 vein with a deep kink ; eyes of 
 male widel} r separated ; hind femora 
 thickened and spiuoe beneath .... CHASMO.MMA, p. 102. 
 
 42 (41) Face carinate or flat, without tubercle ; 
 
 third vein straight or rarely undu- 
 lating but not loop-like ; eyes of male 
 usually touching. 
 
 43 (44) Face carinate ; subapical cross- vein 
 
 not recurrent and without appendi- 
 culated angles ; scutellum of ordinary 
 size and not indented ~. SYRITTA, p. 104. 
 
 44 (43) Face flat ; subapical cross-vein recur- 
 
 rent and usually with appendiculated 
 angles ; scutellum of greater size and 
 often indented EUMEHUS, p. 108. 
 
 45 (40) Second antermal joint enormously 
 
 elongate, being the longest of all . . AMPHOTEHUS, p, 116. 
 
 46 (1) Antennas long and porrect, very often 
 
 longer than the head ; if rarely they 
 are short and pendulous, there is a 
 stump on the third longitudinal vein 
 down the middle of the subapical 
 cell ; there are never macrochaetae 
 on thorax and scutellum. 
 
 47 (52) Antennae with a dorsal arista and 
 
 usually not placed on a long petiole ; 
 small cross-vein before the middle 
 of the discal cell. 
 
 48 (49) Third vein without a stump ; subapical 
 
 cross-vein not recurrent ; thorax and 
 abdomen always adorned Avith yellow 
 markings CHKYSOTOXUM, p. 118. 
 
 49 (48) Third vein with a stump; subapical 
 
 cross- vein recurrent or at least per- 
 pendicular ; abdomen usually with- 
 out yellow markings scutellum often 
 spinose. 
 
IMJIA(!US. 
 
 11 
 
 50 (51) Tliird autennal joint "bare, as usual, 
 
 more or less elongate ; arista well 
 developed, of ordinary size ; face 
 without oblique furrows MICRODON, p. 119. 
 
 51 (50) Third auteimal joint many times as 
 
 long as the first, with a fringe of 
 long hair on its whole length ; arista 
 rudimentary, represented only by 
 a short stump; face \\ith oblique 
 
 furrows PTILOBACTRUM, p. 136. 
 
 52(47) Antennae with a terminal style, and 
 very often placed on a long petiole ; 
 small cross-vein beyond middle of 
 the discal cell . . . .' CKUIOIDES, p. 138. 
 
 Subfamily I. SYRPHIN^E. 
 Genus 1. PARAGUS, LatreiUe (1804). 
 
 The species of this genus are widely distributed throughout the 
 Kthiopian region, and the present collection includes representatives 
 of practically all the known species, as well as two new to science. 
 
 Parayus sif/nedus. Walker (I860), from Natal, steins to be a 
 Gi-fi/>tonii/zfi. as Dr. Speiser has recently pointed out. 
 
 The species before me may be tabulated as follows : 
 
 1 (4) Abdomen with the middle segments fused 
 
 together, the sutures being sometimes 
 distinguishable in the female only ; 
 shape of body broadly ovate ; wings 
 without pubescence "in the middle; 
 eyes with very long pubescence, 
 which forms distinct stripes. 
 
 2 (3) ScutHllum with the apical half yellow, 
 
 and with the hind border deeply 
 serrulate ; face in both sexes with a 
 black stripe ; thorax with two distinct 
 whitish dorsal stripes serratus, Fabr. 
 
 3 (2) Scutellum wholly black and not serrulate 
 
 behind ; face of the mole without a 
 black stripe ; thorax without distinct 
 stripes borbonicus, Macq. 
 
 4 (1) Middle segments of the abdomen well 
 
 separated, only the first and second 
 fused together: shape of body narrowly 
 elongate : wings with distinct pubes- 
 cence towards the middle ; eyes with 
 very short, sometimes hardly distin- 
 guishable pubescence, which is not 
 arranged in stripes ; scutellum always 
 black. 
 
 5 (10) Face of the male without a black stripe; 
 
 wings with distinct pubescence in the 
 middle ; species usually of larger 
 size, with less produced face and a 
 narrow vertical triangle in the male. 
 
12 STRPH1DJE. 
 
 6 (7) A slender species, with distinctly peti- 
 
 olate abdumen, which is clothed with 
 rather long and soft white hair ; 
 body lightly punctate ; pterostigina 
 subhyaline longicentria, Loew. 
 
 7 (6) Species more robust, with the abdomen 
 
 only slightly constricted near the base 
 or not constricted at all, and Avith 
 very short hair; body very strongly 
 punctate; pterostigma black or much 
 infuscated. 
 
 8 (9) Third an tennal joint grey, dark yellowish 
 
 beneath, only twice as long as the 
 first two joints together ; abdomen 
 with less distinct basal bands of white 
 hair marshalli, sp. n. 
 
 9 (8) Third antennal joint black, very long,. 
 
 almost four times as long as the first 
 two joints together; abdomen with 
 very distinct bands of white hair at 
 
 the base of each segment dolichocerns, sp. n. 
 
 10 (5) Face in both sexes with a black stripe ; 
 wings pubescent at the tip and 
 towards the hind border alone ; 
 species of smaller size, with the face 
 much produced below and the vertical 
 triangle of the male broad tibialis, Fall. 
 
 1. Paragus serratus, Fabricius (1805). 
 
 An easily recognised species, very distinct from any other (except 
 the Chinese crenulatus, Thomson) owing to its serrated scutellum 
 and carinate abdomen. Very widely distributed in Africa south of 
 the Sahara and common in British India. I have compared the 
 African specimens with others from. Calcutta and Trichinopoly in 
 my collection. Verrall (1898), Brunetti (1908), de Meijere (1908), 
 and I myself (1912) have mentioned the variability of coloration 
 in the abdomen and the legs of this species. 
 
 A male from Mozambique, and one from Durban, both collected 
 by F. Muir ; another male specimen from Sierra Leone {Dr. J. J. 
 Simpson) and one from Nyasaland (Dr. J. E. S. Old). 
 
 2. Paragus borbonicus, Macquart (1842). 
 
 A species obviously allied to the preceding one on account of the 
 fused abdominal segments, but easily distinguished by the black, 
 not serrated scutellum, and by the wholly yellow face of the male. 
 The male, which w T as unknown to Loew, has a broad band of golden 
 hairs in front of the thorax. 
 
 This species also occurs throughout the Ethiopian Region. 
 There are in the collection several specimens of both sexes from 
 Zungeru, N. Nigeria, 27. xi. 1910 (Dr. J. W. 8. Mac fie), a 
 male from Durban (F. 3/uir) t and a female from Mozambique 
 (F, Muir). 
 
PA R \ . . 1 3 
 
 3. Paragus longiventris, Loeic (1847 ). 
 
 A slender black species, very distinct in both sexes from any 
 other on account of its pedunculate abdomen, resembling that of 
 BaccJia, for which it might be mistaken. 
 
 Known previously from Aden, Erythrsea, Kilimandjaro, and 
 Caffraria ; but L. Fea on his last trip obtained it on the West 
 Coast and in St. Thome. In the present collection there are 
 a number of specimens of both sexes from Obuasi, Ashanti, iv. ix. 
 1907 (Dr. W. 31. Graham}, and from Zungeru, N.Nigeria, 27. xi. 
 1910 (Dr. J. W. S. Macfie} ; a male from Durban, 1902 
 ( F. Muir), and a female from the Nile Province, Uganda. 
 
 4. Paragus marshalli, sp. n. 
 
 <S $ . Length 6 mm. 
 
 A black species near the preceding one, but larger and more 
 robust, with the body coarsely punctate, the abdomen only a 
 little constricted near the base in the male and the pterostigma 
 black. 
 
 Fig. 1. Paragus longiventris. Lw. Fig. 2. Paragns marsltalli, sp. n. 
 Abdomen of $ . x 10. Abdomen of <$ . x 10. 
 
 From Loew's description of longiventris, it seems that he has 
 mixed up the present species with the preceding' one. 
 
 Eyes of the male touching for a very short distance, in both sexes 
 with short sparse white pubescence not disposed in stripes ; ocellar 
 triangle narrow and elongate, shining black, with short dark hair ; 
 frontal ^triangle and face yellow, not striped, clothed with white 
 hair ; jowls and edges of mouth black ; frons of the female 
 narrow, shining black, the lateral white spots very small; face 
 yellow, narrow, very sparsely pilose, with a small black stripe ; 
 posterior orbits towards the middle with silvery hair ; antennas 
 black, the third joint greyish, dark yellowish beneath, scarcelv 
 
14 SYRPHIDJE. 
 
 longer than twice the first two joints taken together. Thorax 
 black, coarsely punctate, with short pale pubescence on the back 
 and a tuft of white hairs on the mesopleura? ; scutellum wholly 
 black. Scjuamulae small, white ; halteres white or yellowish. 
 Abdomen wholly black, all the segments distinct, coarsely punctate 
 and with short white hair, which forms more or less indistinct bands 
 on the fore borders ; in the male the second segment is a little 
 narrower than the others, but not in the female ; male genitalia 
 small, black. Legs reddish yellow, with black coxa3 ; femora black 
 at the base, the hind pair more broadly ; hind tibiae with a black 
 ring. Wings hyaline, with a black stigma ; the microscopic 
 pubescence extends over all the surface, except on the basal 
 cells. 
 
 This species seems to vary, like its allies, in the colour of the 
 abdomen and legs. 
 
 Type tf , from Salisbury, S. Rhodesia, collected by Mr. Gr. A, K. 
 Marshall, in whose honour the species is named; another very 
 small specimen (4 mm.) from Chirinda Forest, Melsetter District, 
 S. Khodesia, v. 1905 (Q-. A. K. Marshall}, seems to belong to the 
 same species; a male from the latter locality, vi. 1911 ((7. F. M. 
 Swynnerton), has the last segment of the abdomen with the 
 genitalia red, and the black parts of the legs are red. 
 
 Type , from Obuasi, Ashanti, W. Africa, 4. vii. 1907 
 (Dr. W. M. Graham') ; another specimen from same locality and 
 collector, 8. ix. 1907, has the sides of the 3rd and 4th abdominal 
 segments reddish ; a third specimen from the same locality and 
 collector, 9. vii. 1907, is smaller and shows a clear pterostigma. 
 
 5. Paragus dolichocerus, sp. n. 
 
 $ . Length 7 mm. 
 
 A very robust species, distinguished from the preceding one by 
 its very elongate third antennal joint and by the distinct bands of 
 white hair on the abdomen. 
 
 Fig. 3. Paragus dolichocerus, sp. n. 
 Antenna of (greatly enlarged). 
 
 Frons shining black, almost without white spots on the sides ; 
 face yellow with a broad black stripe and the sides of the mouth 
 black ; hair on the face very sparse and short ; pubescence on the 
 eyes pale, short, not disposed in stripes ; antennae black, the third 
 
PABAGrS. CHRYSOGASTER. 1 
 
 joint only dark brownish at the base beneath, very elongate, longer 
 than the" arista, which is black. Thorax, scutellum, and halteres 
 as in the preceding species ; the abdomen also, but with longer 
 hair, which forms distinct bands at the base of each segment. 
 Leirs reddish, with the tips of the femora and the bases of the tibise 
 yellow ; hind femora darkened at the base, but not black. Wings 
 hyaline, with black veins and bkck stigma ; pubescence as in 
 P. mai'sliaUi. 
 
 Type $ , a single specimen, from Marsabit, Brit. East Africa, 
 21. ix. 1911 (E. J. Stordy). 
 
 6. Paragus tibialis, Fallen, var. substitutes, Loew (1858). 
 
 A single male specimen from Durban (_F. Muir) belonging to 
 this variety of the little European species, which is, however, 
 hardly distinguishable from the other forms of this variable 
 insect. 
 
 Genus 2. CHRYSOGASTER, Meigcn (1800). 
 
 It seems very remarkable that of this genus there are no 
 described species from the Ethiopian Region, with the exception 
 of the very aberrant Chrysoyaster (Orikoneura) pcecilophthalma, 
 described by me in 1908 from Erythraea, which, on account of 
 its hairy eyes, seems to be in a very isolated position. The genus, 
 however, is probably fairly well represented in Tropical Africa ; 
 perhaps the species have been neglected on account of their small size. 
 
 The collection before me contains examples of three very inter- 
 esting species, which belong to the subgenus Orthoneura and have 
 bare eyes ; they may be tabulated as follows : 
 
 1 (2) Wings without any dark pattern ; eyes 
 
 marked with confluent brown spots; third 
 antennal joint rather short ; body elon- 
 gate, metallic green, but not very shining, 
 the abdomen dull black in the middle . . pcsdlops, sp. n. 
 
 2 (1) Wings with definite dark pattern : eyes uni- 
 
 colcrous or banded ; body broadly ovate, 
 very strongly shining. 
 
 3 (4) Third antennal joint rather short; abdomen 
 
 adorned with a broad velvety black band 
 on the middle of each segment ; legs 
 entirely black : wings with many black 
 spots towards the apex ; eyes uuicolorous. spiloptcra, sp. 11. 
 
 4 (3) Third antennal joint very long, linear; 
 
 abdomen in the middle as strongly shining 
 as the rest of the body, with a black band 
 on the second segment alone ; legs in 
 great part yellow ; wings with only a 
 perpendicular brown band before the 
 tip ; eyes with two perpendicular brown 
 bands Iteviyata, sp. n. 
 
10 SYJIPIUDJE. 
 
 7. Chrysogaster (Ortlioneura) pcecilops, sp. n. 
 
 c? . Length 6'5 mm. 
 
 Nearly allied to the European nobilis, Fall., but at once dis- 
 tinguished by the spotted eyes, shorter rectangular third antennal 
 joint, and hyaline wings. It is also allied to my pcecilopJithcdma, 
 and belongs to the same group, but may be distinguished at once 
 by the bare eyes and by the thorax being without black pattern. 
 
 Head shining aeneous, clothed with whitish hair, which is 
 longer on the broad frontal triangle and wanting towards the 
 middle of the face ; anterior edge of buccal cavity very prominent ; 
 vertical triangle blackish, much smaller than in nobilis, while the 
 eyes are in contact for a greater distance ; eyes bare, with many 
 confluent brown spots, which are very different from those of 
 nitida, Wied., and like those of poecilophthalma ; antennae dark 
 yellowish brown, the third joint only twice the length of the first two 
 together, rectangular, but rounded at the end; arista blackish, quite 
 bare. Thorax shining aeneous, but lightly punctate and rather 
 dullish, with short white hair, longer on the pleurae ; with two 
 approximated longitudinal dorsal w r hite stripes in front. Scutellum 
 large, margined, coloured, and punctate like the thorax. Squamulae 
 rather large, white, the inferior with a very long white fringe ; 
 halteres pale yellowish ; plumulae white. Abdomen not margined, 
 shining aeneous, with white pubescence, which is longer on the belly ; 
 the whole disc dull black ; the last segment simple ; genitalia large, 
 highly polished, twisted to the right. Legs strong, wholly 
 blackish aeneous, with very short pubescence ; the basal joints of 
 fore and middle tarsi a little thickened. Wings wholly hyaline, 
 without any distinct pattern ; stigma and veins yellowish, the 
 latter darkened towards the end; subapical cross-vein perpendicular, 
 not recurrent ; vena spuria distinct, but not chitinised. 
 
 Type c? , a single specimen from Durban, Natal (jP. Muir). 
 
 8. Chrysogaster (Orthoneura) spiloptera, sp. n. 
 
 5 . Length 5 mm. 
 
 An elegant blackish-aeneous species, with unspotted eyes and 
 black legs, velvety black bands on abdomen, and a wing-pattern 
 recalling that of the North- American species nit id a, Wied. 
 
 The present and the following species, known only in the female 
 sex, are evidently related and unite the characters of Orthoneura 
 with those of Liogaster, to which they should be referred if the 
 eyes of the male prove to be separated ; in neither species, however, 
 has the frons of the female any transverse furrows. They both 
 live in swamps, like our European species. 
 
 Head very large, hemispherical, shining black with faint bluish 
 reflexions ; frons broad, very long, smooth, gently convex in the 
 middle, almost bare, more shining and aeneous above the antennae, 
 with only the beginning of a few oblique furrows near the base ; 
 face carinate below and produced towards the mouth-edge, bare, 
 lightly rugulose towards the sides ; eyes bare, dark brown, with no 
 
CHBYSOGASTER. 17 
 
 distinct spots ; antennas inserted below the middle of the eyes, 
 moderately short, dark yellowish brown ; third joint as long as 
 twice the first two joints together, narrow, rounded at the tip ; 
 arista long, quite bare. Thorax practically bare, with only a few 
 short pule hairs on the sides of the back ; dull blackish seneous, 
 black on the pleurae, where is to be seen a little grey tomenturn ; 
 back without pattern, faintly striped, coarsely punctate. Scutellum 
 large, quadrangular, margined, like the thorax; its exceedingly 
 short hairs are inserted in distinct punctures. Plumulae and 
 squamulae white, the thoracic one with a long white fringe ; halteres 
 yellowish. Abdomen broad, flattened, and margined, the last seg- 
 ment rounded; almost bare, its exceedingly short pubescence 
 inserted in punctures, which on the sides are very coarse ; the sides 
 are shining aeneous, with a purple band on posterior margin of 
 second and third segments; on the back the first segment is black, 
 
 Fig. 4. Chrysogaster spiloptera, pp. n. $. X 6. 
 
 except at the sides, the second and third show a very broad velvety 
 black band, which does not reach the sides, but is triangularly 
 produced forwards, touching with its apex the hind border of the 
 preceding segment ; fourth segment almost entirely shining, with 
 only a small black triangle in middle of fore border, emarginate 
 behind. Venter shining black. Legs entirely black, short and robust, 
 almost bare ; basal joints of front and hind tarsi thickened, chiefly 
 those of hind pair. Wings hyaline, yellowish towards the base and 
 with yellowish stigma; the marginal cell contains two rounded brown 
 spots near its end ; there are also two apical cross-bands, one beginning 
 in the submarginal cell, just before the end of the marginal cell, 
 and united with the dark border on the subapical cross-vein ; the 
 other is less dark, placed just before the tip of the wing, crossing 
 the marginal cell and the outer part of the first posterior cell ; besides 
 there are brown elongate cloudy patches in the middle of the sub- 
 marginal cell, in the subapical cell, and in the discoidal cell. Sub- 
 apical cross-vein recurrent. 
 
 Type $, a single specimen from Obuasi, Ashanti, l.ix.1907, 
 "caught in swamp'* (Dr. 7P. 3f. Graham}. 
 
 c 
 
18 
 
 0. Chrysogaster (? Orthoneura) laevigata, sp. n. 
 
 $ . Length 4'5 to 5 mm. 
 
 A glittering metallic species, which recalls our European Lio- 
 gaster metallina, but has a very elongate linear third antennal 
 joint, a velvety black transverse band on the second abdominal 
 segment, and a dark cross-band on the wings before the tip. 
 
 Head smaller than in the preceding species, with the frons 
 shorter, the antennae being inserted above the middle of the eyes 
 (not below as in C. spiloptera] ; entirely shining, metallic bluish, 
 aeneous on the lunula ; frons with an arcuate prominence above 
 the antennae and with two median longitudinal elevated lines, but 
 without any trace of transverse furrows ; it bears dark and sparse, 
 but rather long, hairs ; face rounded, less produced below, with 
 sparse hairs; eyes bare, adorned with two perpendicular dark bands, 
 the space between which is equal to that on each side of them ; 
 antennae black, dark yellowish toAvards the base, widely separated ; 
 third joint narrow, linear, three times as long as the first two 
 together ; arista bare. Thorax aeneous on the sides and on the 
 pleurae, purplish blue on the disc behind the suture ; dorsum clothed 
 with short pale hair. Scutellum aeneous, smaller than in the 
 preceding species, margined, clothed with rather long hair, chiefly 
 toAvards hind border. iSquamulae white, the thoracic pair Avith a 
 long fringe ; plumulo) and halteres pale yellowish. Abdomen 
 entirely shining, with short pubescence ; aeneous at the base and 
 sides and on the fourth segment, and violaceous in the middle of 
 the disc ; the second segment bears besides a velvety black band 
 on the hind border, AA r hich does not reach the sides and is rounded 
 anteriorly, attaining the middle of the segment. Venter shining 
 aeneous, with coppery reflexions. Legs short and stout, with short 
 pale pubescence ; femora black, tibiae and tarsi reddish yellow. 
 Wings hyaline, Avith yellowish base and stigma ; veins darkened 
 towards the end ; the subapical cross-band is pale broAvn, and runs 
 perpendicularly from the subapical cross-vein to the end of the 
 second longitudinal A r ein ; the posterior cross-vein is also narrowly 
 margined Avith fuscous ; subapical cross-vein but slightly recurrent, 
 almost perpendicular. 
 
 Type $ , and another specimen from Obuasi, Ashanti, 1. ix. 1907, 
 "caught hovering in sAvamp" (Dr. W. M. Graham). 
 
 Genus 3. MELANOSTOMA, Schiner (1860). 
 
 A iiumluT of ill-defined African forms of this genus have 
 been described, tho synonvmv of which is given in the List 
 (p. 3). 
 
 With the material available 1 haA r e distinguished the following 
 forms, which perhaps can be reduced to fiA r e good species ; JU. uiel- 
 /i mi HI, which 1 recorded in 1908 from Erythraea, is doubtful, as 
 this species does not seem to be represented in the Ethiopian 
 Kt'gion : 
 
MELAXOSTOMA. 10 
 
 1 (2) Facial tubercle double, that is, divided 
 
 bv a perpendicular furrow into two 
 small but distinct approximated 
 tubercles; legs and antennae entirely 
 yellow or sometimes more or less 
 darkened ; yellow abdominal mark- 
 ings very extensive, tnose of male 
 sometimes covering the whole abdo- 
 men bituberculatum, Loew. 
 
 2 (1) Facial tubercle simple, or rarely with 
 
 only a trace of a division. 
 
 3 (4) Legs entirely yellow, without dark 
 
 markings ; yellow abdominal spots 
 very broad, rectangular ; larger 
 spocies (8-9 mm.) Jlonpeta, Speis. 
 
 4 (3) Legs for the most part not entirely 
 
 yellow, often with a black pattern, 
 or at least with dark markings ; if 
 tlie legs are entirely yellow', the 
 abdominal spots are not so broad 
 and of triangular shape. 
 
 5(12) Legs mainly yellow, that is, the front 
 femora not blackened at the base, 
 the trochanters yellow, the hind 
 femora and tibia3 only with black 
 rings ; antennae almost entirely 
 yellow. 
 
 6 (7) Arista slightly pubescent; legs more 
 
 or less darkened or wholly yellow, 
 without any definite black ring 
 before the apex of hind femora ; 
 abdomen of male very narrow ; 
 yellow abdominal spot-*" of female 
 triangular in shape, and longer than 
 half the segment scahtre, Fabr. 
 
 7 (6) Arista bare; legs with sharply de- 
 
 fined black rings on bind femora 
 and tibiae ; abdomen of the male 
 broader (annulipes, s. 1.). 
 
 8 (11) Second abdominal segment with a 
 
 pair of yellow spots. 
 
 9 (10) Yellow spots on the second abdominal 
 
 segment rectangular in shape and 
 not different from those on tho 
 following two segment?, which are 
 besides longer than the half of each 
 segment; hind tibiae with a sharply 
 defined black ring; hind tarsi yel- 
 low, darkened apically anmthpes, Macq. 
 
 10 (9) Yellow spots on the second abdominal 
 
 segment rounded, and only half as 
 large as the other?, which besides 
 are not longer than the half of the 
 segment ; hind tibiae and hind tarsi 
 sometimes entirely biack var. automenes, Walk. 
 
 11 (8) Second abdominal segment wholly 
 
 c2 
 
20 SYBPHIDJE. 
 
 black, unspotted ; hind femora with 
 a black ring, hind tibiae sometimes 
 entirely black ; hind tarsi wholly 
 
 black or with pale base var. mauritianum, Big. 
 
 12 (5) Leg8 mainly black, the front femora 
 black at the base, the trochanters 
 black, the hind legs wholly black 
 or only with pale knees ; antennae 
 almost entirely black ; second abdo- 
 minal segment usually unspotted ; 
 wings more or less infuscated .... infuscatuin, Beck. 
 
 10. Melanostoma "bituberculatum, Loew (1857). 
 
 Allied to scalare, but at once distinguished by its double facial 
 tubercle. 
 
 It is worthy of note that Adams redescribed the present species 
 as new in 1905, under the name given to it by Loew in 1857; he 
 was misled perhaps by the fact that Loew placed his species under 
 Syrphus. 
 
 Typical examples have the antennae almost entirely and the 
 legs entirely yellow ; but there are specimens with very dark 
 antennae and with darkened hind legs, or even with all the femora 
 blackened. 
 
 A typical couple from Durban (F. Mitir) ; a male from Njaro, 
 Brit. E. Africa (A. J. Cholmley), in which the yellow spots on 
 third and fourth abdominal segments are fused together, forming a 
 broad transverse band ; the abdomen is therefore wholly yellow, 
 only the base and two narrow transverse lines being black. A 
 male and two females with darkened antennae and legs from Brit. 
 E. Africa, E. side of the Aberdare Mountains, 7,300 ft., 24. ii. 1911 
 (T. J. Anderson). 
 
 11. Melanostoma floripsta, Speiser (1910). 
 
 A species distinguished by its comparatively large size, entirely 
 yellow legs, very broad rectangular yellow abdominal spots, and 
 infuscated wings. 
 
 This spacies is not closely allied to the following one, but has 
 some resemblance to a Platychirus, as stated by Dr. Speiser. Ori- 
 ginally described from Kilimandjaro and Meru ; there is a single 
 female specimen from British E. Africa, M'bagori's Village, edge 
 of Kenia Forest, 5,000 ft., 12. ii. 1911 (T. J. Anderson). 
 
 12. Melanostoma scalare, Fabricius (1794). 
 
 A well-known European species, characterised by its slightly 
 pubescent arista, the narrow abdomen of the male, the triangular 
 yellow rather long abdominal spots of the female, and the absence 
 of black rings on the legs. 
 
 Two females from Mt. Chirinda, S. Rhodesia, vi. 1911 (C. F. M. 
 Swynnertori) ; Dr. Speiser received the species from Kilimandjaro. 
 
MELA>'QSTOMA. ASARC1XA. 21 
 
 13. Melanostoma annulipes, Macquart (1842). 
 
 A very variable species, but easily recognised by its black-ringed 
 legs and short abdominal spots. 
 
 The species varies in the colouring of the legs, the hind pair 
 being sometimes mainly black, and in the shape of the yellow 
 abdominal spots, those on the second segment being often wanting. 
 It is the predominant African species, which seems to replace 
 the Palsearctic scalar e. The length of the bodv varies from 
 7 to 9 mm. ; the essential characters are the bare arista, the 
 annulated legs, and the yellow abdominal spots being not longer 
 than half the segment which bears them, and usually much shorter, 
 chiefly in the female. 
 
 The collection contains the following forms : 
 
 (a) annnlipss, Macq. Of this typical form there are specimens 
 from Marsabit, Brit, E. Africa, 21. ix. 1911 (R. G. Stordy) ; 
 Oshogbo, S. Nigeria, xi. 1910 (Dr. T. F. J. Mayer) ; Zungeru, 
 N. Nigeria, 15. xi. 1910 (Dr. J. W. S. Macfie) ; Obuasi, Ashanti, 
 28. vi. 1907, "caught hovering over stream" (Dr. W. M. Graham). 
 
 (b) automenes, Walk. (+ annu latum, Big., -f pyropJicenoi cles, 
 Speis.). Two male specimens from Obuasi, Ashariti, 4. viii. 1907 
 and 7. xi. 1907 (Dr. W.1L. Graham). 
 
 (c) mauritianum, Big. ( + gymnocerum, Big.). Three females 
 from Obuasi, Ashanti, 15. vii. 1907 and 22. x. 1907 (Dr. W. M. 
 Graham), which agree better with gymnocerum. A couple from 
 Mahe, Seychelles Islands, ix. 1908 (Hugh Scott), are typical 
 mauritianum. 
 
 14. Melanostoma infuscatum, Becker (1910). 
 
 Easily known on account of its black antennae and legs and 
 general very dark colouring ; perhaps only an extreme form of the 
 preceding species. 
 
 Three males and one female from Mt. Chirinda, Southern Rho- 
 desia, vi. 1911 (C. F. M. Swynnerton), which have yellow knees 
 on the hind legs, while the female has mainly yellow fore legs ; 
 length 7-5 to 8 mm. Two males from Brit. E. Africa, E. side of 
 Aberdare Mountains, 7,300 ft., 2-4. ii. 1911 (T. J. Anderson), are 
 of somewhat larger size (9 mm.) and have entirely black hind 
 legs, while a female from the same locality and collector has 
 entirely black antennae, but mainly } T ellow legs. 
 
 Genus 4. ASARCINA, Macquart (1842). 
 
 On this interesting genus I have published two papers, in 1903 
 and 1908 *, which have been criticised by Dr. Speiser in his work 
 
 * " Di una specie inedita di Ditteri Italian! appartenente ad un genere 
 nuovo per la Fauna europea," Bull. Soc. Entom. Ital. xxxv. pp. 3-19 (1903). 
 
 " Secondo contribute) alia conoscenza del genere Asarcina," Ann. Mus 
 Nation. Hungar. vi. pp. 495 504 (1908). 
 
2.2i SYRPHIDjE. 
 
 on Kilimandjaro Diptera (1910) ; in my recent paper on the 
 Diptera collected by Leonardo Fea in West Africa *, I have given 
 a table of the known African species and forms, and have entirely 
 confirmed my previous conclusions. 
 
 The present collection contains 22 specimens belonging to this 
 genus, which also bear out the opinions that I have expressed. All 
 the known African species and forms are represented, with the 
 exception of angustata, Becker, which is distinct from any other 
 in having the eyes of the male separated a very striking character, 
 unique in the genus ; besides there are some new species and forms, 
 one of which is unusually interesting on account of its hairy eyes. 
 
 The species and forms may be distinguished as follows : 
 
 1 (14) Face wholly yellow, without median black 
 
 stripe and without any black spot upon 
 front edge of buccal cavity ; the fare not 
 conically produced, being' less prominent 
 below, and having the anterior edges of 
 the buccal cavity retreating ; facial tu- 
 bercle cariniform ; peristoma narrow, 
 with the hind part black, or at least with 
 a black spot below the inferior corner of 
 the eyes; frons usually with a prominent 
 supra-antennal tubercle ; antennae closely 
 approximate at the base, with the two 
 basal joints of equal length and with the 
 third mainly yellow, darkened only on 
 the superior part ; proboscis rather short; 
 sides of the thorax .and pleurae more 
 or less distinctly yellow or yellowish 
 (ericetorum-group). 
 
 2 (13) Frons more or less prominent, usually with 
 
 a well-developed supra-antennal tubercle ; 
 eyes of male touching along a line of 
 about 1 mm. in length; abdomen ovate, 
 broader than the thorax ; scutellum 
 wholly black-haired, or at least with 
 black hairs on the hind border ; tarsi 
 entirely black or with only a small yellow 
 area near the base ; species of greater size 
 (11 to 15 mm.). 
 
 3 (12) Frons clothed with black hairs in both sexes, 
 
 rather prominent, with a well-developed 
 and prominent supra-antennal tubercle, 
 which besides usually bears a more or 
 less distinct black spot; wings long. 
 
 4 (11) Sides of face covered with a dull yellowish 
 
 toraentum and clothed with dark yellow- 
 ish hairs. 
 
 6 (8) First abdominal segment with a very small 
 black spot, which is much smaller than 
 the scutellum ; first yellow abdominal 
 
 * " Ditteri raccolti da Leonardo Fea durante il suo viaggio nell' Africa 
 ocoidentale," Ann. Mus. Civ. Stor. Nat. Geneva, (3) v. pp. 400-443 (1912). 
 
ASARCIXA. 23 
 
 band not divided, never constricted to- 
 
 wards its middle ; wings greyish hyaline; 
 
 scutellum pale yellow ; eyes of the male 
 
 touching along a line longer than 1 mm.; 
 
 abdominal segments yellow on the lateral 
 
 border. 
 (7) Black abdominal bands very narrow, linear, 
 
 in the male usually three in number, that 
 
 of the last segment being wanting- or much 
 
 reduced ; supra-antennal spot wanting or 
 
 small ; scutellum pale-bordered at the 
 
 ba>e .......................... ertcetonim typica, Bezzi. 
 
 (6) Black abdominal bands twice as broad as 
 
 in the preceding species, not linear, alwas 
 four in number, that on the last s 
 
 segment 
 
 being well developed even in the male ; 
 supra-antennal tubercle with a broad, 
 glittering black spot ; scutellum wholly 
 black-haired ................ ericetonun yemmata, var. n. 
 
 8 (o) First abdominal segment with a broad black 
 
 spot, which is triangularly produced be- 
 hind : first yellow band therefore inter- 
 rupted in the middle by a black line or 
 strongly constricted. 
 
 9 (10) Black bands on the abdomen linear as in 
 
 tt//>ica', wings yellowish hyaline; scu- 
 tellum pale, with faint bluish reflexions, 
 clothed with pale hairs except at hind 
 border ; eyes of the male touching for 
 1 mm. ; lateral borders of the abdominal 
 segments yellow .......... ericeforum usambarensis, Bezzi. 
 
 10 (9) Black abdominal bands broad, even broader 
 
 than in ge.mmata ; wings strongly infus- 
 cated; scutellum much darkened, almost 
 blackish towards the base, clothed with 
 w r holly black hairs ; third and fourth 
 abdominal segments with a black lateral 
 border .................... ericeforum punch f runs, Aust. 
 
 11 (4) Sides of face with a rich shining white 
 
 toraentum, with opalescent reflexions, and 
 clothed with white hairs ; first yellow 
 band not divided ; black bands narrow ; 
 scutellum black-haired; wings greyish 
 hyaline .................... ericttorum ttlbifacies, var. n. 
 
 12 (3) Frons clothed with pale hairs, in the female, 
 
 at least on the anterior half, less promi- 
 nent, the supra-antenual tubercle less 
 produced and always without a bl.ick 
 spot: wingsshort; black abdominal baiuU 
 narrow ; h'rst yellow band interrupted in 
 the male; scutellum with black hairs on 
 the hind border; sides of face dull yel- 
 lowish ; eyes of the male touching' for 
 1 mm ....................... ericetonun africinut, Bezzi. 
 
 13 (2) Frons wholly flattened, without prominent 
 
 tubercle, entirely yellow ; scutellum 
 
24 
 
 SYKPI1I.IKE. 
 
 wholly pale-haired ; sides of face strongly 
 shining 1 ; tarsi entirely yellow, the hind 
 pair only a little infuscated at the end ; 
 abdomen narrow, not broader than the 
 thorax, with the first yellow band in the 
 male not interrupted ; eyes of male 
 touching along | mm. only ; length about 
 8 ram minor, sp. n. 
 
 14 (I) Face with a median black stripe, or at least 
 
 with a quadrate or semicircular black 
 spot on the upper front edge of the buccal 
 cavity ; the face is very strongly and 
 conically produced, being very prominent 
 below and having the anterior edges of 
 the buccal cavity perpendicular or even 
 projecting forwards ; peristoma broader, 
 wholl}' yellow ; frons flattened, without 
 prominent tubercle; antennae more or 
 less distant at the base and often very 
 remote from each other, with the first 
 joint often elongate and the third black, 
 more or less yellowish beneath ; proboscis 
 long or very long ; sides of thorax and 
 pleurae not or indistinctly yellow ; first 
 yellow abdominal band interrupted in the 
 middle (ms/rrtto-group). 
 
 15 (16) Facial tubercle carinilorm as in the pre- 
 
 ceding group; first antennal joint not 
 elongate ; a semicircular black' mark on 
 . the upper edge of the buccal cavity ; scu- 
 telium black-haired ; wings very long 
 and fuscous; first yellow band inter- 
 rupted ; black bands broad and four in 
 number; lateral borders of the third, 
 fourth, and fifth abdominal segments 
 black ; proboscis short anwena, A list. 
 
 16 (17) .Facial tubercle broad and rounded, not 
 
 cariniform ; face with a broad black oral 
 spot or abroad stripe ; first antennal joint 
 elongate ; proboscis long. 
 
 17 (18) Face with only a quadrate black spot on 
 
 oral edge, moderately prominent, whitish 
 on the sides ; first antennal joint twice 
 as long as the second ; scutellnm at the 
 base with yellow hairs; black abdominal 
 bands very narrow, in the male only two 
 or three, in the female three, the lateral 
 borders without a black stripe ; species 
 of smaller size and with very short 
 
 wings foiii, Bezzj, 
 
 IS (17) Face with a broad median black stripe, 
 which always covers the median tubercle, 
 reaching sometimes the base of the an- 
 tennae, yellowish on the sides, more pro- 
 duced below ; black bands broader and 
 four in number ; species of greater size 
 and long- winged, 
 
- VRCINA. 25 
 
 19(221 Eyes bare; face more or less projecting, 
 clothed on the aides with very short pale 
 hairs. 
 
 20 (21) Median black stripe on the face broad and 
 
 short, not extending beyond the median 
 tubercle; second and third yellow abdo- 
 minal bands constricted towards the 
 middle ; lateral borders of the abdomen 
 black; species of greater size (15 to 1(3 
 mm ), with less produced face and very 
 long proboscis eremophila, Loew. 
 
 21 (20) Facial stripe narrower, but reaching the 
 
 bas3 of the antennas ; second and third 
 yellow bands not constricted and lateral 
 borders yellow ; species of smaller size 
 (11 to 13 mm.) with more projecting face, rustrala, AVied. 
 22^19) Eves densely hairy; face exceedingly pro- 
 'jecting, clothed with long black hairs on 
 the sides : median facial stripe broad, not 
 reaching the base of the antennae : abdo- 
 men with the second and third yellow 
 bands constricted in the middle and the 
 lateral borders black hirsuticeps, sp. n. 
 
 It is important to note that the forms belonging to the two 
 above-de lined groups seem to be in a very different condition. 
 The forms of the ericetonnti-group are less differentiated, so that 
 I am able to recognise practically a single species, divided into 
 many varieties, which inhabits mainly the centre and the north of 
 the Ethiopian Region, and besides extends throughout the Oriental 
 Region. The forms of the rostrata- group are more differentiated, 
 showing often very striking characters, such as hairy eyes, pro- 
 jecting face, <&c., so that I can distinguish five species, which are 
 more dominant in the south, with the notable exception of a species 
 (fiorii) which reaches the north of Italy ; species of this group are 
 wanting in the Oriental Region. 
 
 15. Asarcina ericetorum, Fabricius (1781). 
 
 This species is at once distinguished by the wholly yellow, less 
 projecting face, by the approximate antennae, and by the cariniform 
 facial tubercle. 
 
 A very variable species, which I can at present subdivide into 
 the following six Ethiopian forms, of which gemmata. usambar- 
 ensis, and ft/pica are apparently very closely related, while the 
 others seem to be all very distinct. 
 
 (a) typica, Sezzi (1908). 
 
 Distinguished by its clear wings, mainly pale-haired scutellum, 
 the unconstricted first abdominal yellow band, and the linear black 
 bands. 
 
 A couple of specimens from Obuas.i, Ashanti, 21. vi. 1907 and 
 9. vii. 1907 (Dr. Jr. J/. Graham). 
 
26 SYRI'MIDJE. 
 
 (&) usambarensis, Bezzi (1908). 
 
 Like the preceding form, but the first yellow band strongly 
 constricted or interrupted. 
 
 A single female specimen (same locality and collector as the 
 preceding), 25. viii. 1907. 
 
 (c) gemmata, var. n. 
 
 Like the two preceding forms, but differing in the broader black 
 bands of the abdomen, black-haired scutellum, and very large 
 shining black spot, with bluish reflexions, on the supra-antennal 
 tubercle. Length of body 11 to 14 mm., of wing 10 to 13 mm. 
 
 Type d" and another specimen from Obuasi, Ashanti, 6-7. viii. 1907 
 (Dr. W. ]\1. Graham). Type $ and two other specimens, same 
 locality and collector, 5-28. vii. 1907 and 13. viii. 1907. 
 
 (d) punctifrons, Austen (1909). 
 
 Characterised by its darker coloration, narrow yellow markings 
 on the abdomen, the black bands being very broad, interrupted 
 first yellow band, black lateral borders of abdomen, blackish scu- 
 tellum, and infuscated wings. Length of body 14 to 15 mm., of 
 wing 12 to 13 mm. This is possibly a good species ; Mr. Austen 
 knew only the male. The female has the black supra-antennal 
 spot less distinct or wanting, the frons wholly black-haired and 
 covered with dense yellowish dust with distinct metallic reflexions, 
 and shining black towards vertex. 
 
 One female from British E. Africa, in the Kenia Forest, 10. ii. 1911 
 (T. J. Anderson) ; another female from Marsabit, Brit. E. Africa, 
 20. ix. 1911 (E. J. Stordy) ; a third female from Durban (F.Muir). 
 
 (e) albifacies, var. n. 
 
 Near typica, but differing in the glittering white tomentum and 
 the white hairs on the sides of the face. Length of body 14 nun., 
 of wing 11 mm. 
 
 Type 5 from Uganda, Mpumti, Chagwe, iv. 1910 (Majors A. E. 
 Ilamerton, D.S.O., E.A.M.C., and H. E. Bateman, E.A.M.C.) ; 
 a single specimen. 
 
 (/) africana, Bezzi (1908). 
 
 Very distinct on account of its flattened, wholly yellow frons, 
 which besides is entirely clothed with pale hairs in the male, and 
 at least on the apical half in the female ; first yellow band divided 
 in the male and entire in the female. Length of body 12 to 13 mm., 
 of wing 10 to 11 mm. 
 
 A male specimen from Durban (F. Hfuir') and a female from 
 British East Africa, 13 miles north of M'bagori's Village, towards 
 Meru, 13. ii. 1911 (T. J. Anderson}. 
 
 This form is probably a good species, chiefly on account of the 
 shape of the frons, which connects it with the 
 
ASARCINA. -7 
 
 16. Asarcina minor, sp. n. 
 
 d . Length of body 8 to 8'5 mm., of wing 6 to 6'5 mm. 
 
 Very distinct from ericetorum typica, which has the same 
 general coloration, owing to its smaller size, very narrow abdomen, 
 flattened and wholly yellow frons. eyes of the male touching along 
 a much shorter line, entirely yellow-haired scutellum, and yellow 
 tarsi. 
 
 Head as in ericetorum, but wholly yellow; the sides of the face 
 very shining and with opalescent reflexions ; antenna? wholly 
 yellow, the third joint only a little darkened abo\;e ; eyes touching 
 for a very short distance, not longer than the length of the triangle 
 formed by the ocelli. Thorax and scutellum as in ericetorum 
 typica, but the latter without any black hair, the longer hairs on 
 the hind border being also yellow. Coloration and black abdominal 
 bands as in typica, the first yellow band entire. Legs entirely 
 yellow ; the four front tarsi entirely yellow, the hind tarsi dark- 
 ened towards the tip. Wings with a faint greyish tinge, a little 
 yellowish in the costal cell and stigma ; veins yellowish. 
 
 Type d , from Bende, S. Nigeria, 23. v. 19lO (J. J. Simpson} ; 
 another male specimen from Kurnasi, Ashanti, 27. x. 1907 (Dr. W. 
 Itt. Graham}. 
 
 17. Asarcina amoena, Austen (1909). 
 
 Closely allied to ericetorum, but verging towards the rostrata- 
 group on account of the semicircular black mark on superior edge 
 of buccal cavity, non-tuberculate frcns, distant antenna?, and 
 differently coloured abdomen. 
 
 A male from British East Africa, near Crater Lake, N. of 
 Mount Kenia, 5,700 ft., 15. ii. 1911 (T. J. Anderson) ; Mr. Austen 
 described and figured the species from the Ruwenzori Mountains. 
 
 The specimens from Moschi, near Kilimandjaro, German East 
 Africa, which in 1908 I referred with doubt tojiorit, and Dr. Speiser 
 in 1910 to eremophila, certainly belong to the present species. 
 
 18. Asarcina fiorii, Bezzi (1903). 
 
 A small species, very distinct from any other on account of the 
 quadrate black spot at the upper edge of the buccal cavity, ths 
 rounded and less distinct facial tubercle, the whitish sides of the 
 face, the reduced black bands on the abdomen, and the very short 
 wings. 
 
 The two specimens, a male and a female, are without any doubt 
 conspecific with my type from Italy, which was collected in Emilia 
 by Prof. A. Fiori, the well-known coleopterologist. 
 
 The undescribed male has the eyes touching for a very short 
 distance, as short as in minor ; the frons is wholly yellow, pale- 
 haired, flattened, and without prominent tubercle ; the antenna? are 
 distant at the base, and the first joint is elongated as in the female ; 
 scutellum black-haired towards hind border; abdomen as in the 
 
28 SYRPHIDJE. 
 
 female, but with only two black bands, the third and the fourth 
 wholly wanting ; genitalia reddish ; all the tarsi black. 
 
 Type S , Johannesburg, Transvaal, 1906 (A. J. Cholmley) ; a 
 female from British East Africa, M'bagon's Village, edge of Kenia 
 Forest, 5,000 ft., 12. ii. 1911 (T. J. Anderson). 
 
 The singular distribution of this species, ranging from South 
 Africa to Italy, is paralleled by that of some other Diptera, as, for 
 example, Eristalis tceniops and quinquelineata, Stomatorrhina 
 lunafa, etc. 
 
 19. Asarcina eremophila, Loew (1857). 
 
 A large species, distinguished by the broad black facial stripe, 
 which, however, does not reach the base of the antennae, and by 
 the second and third abdominal bands being more or less constricted 
 in the middle. 
 
 The face of this species does not project much, the margins of 
 the buccal cavity being perpendicular; the antennae are widely 
 separated. 
 
 A female specimen from British East Africa, near Crater Lake, 
 N. of Mount Kenia, 5,700 ft., 15. ii. 1911 (T. J. Anderson). 
 
 20. Asarcina rostrata, Wiedemann (1824). 
 
 This species may be recognised by the very projecting face, the 
 margins of the buccal cavity being produced forwards, and by the 
 facial stripe reaching the base of the antennae. The facial tubercle 
 is very broad. 
 
 A specimen from Durban (F. Muir)\ this species seems to be 
 confined to the south of the liegion. 
 
 21. Asarcina hirsuticeps, sp. n. 
 
 3 . Length of body 14 mm. ; of wing 12 mm. 
 
 Very distinct from any other known species on account of its 
 hairy eyes and its exceedingly produced face, which has a very 
 broad black stripe and is clothed on the sides with very long black 
 hairs. 
 
 The line of contact of the eyes as long as the vertical triangle 
 (1 mm.), wholly covered with long and dense white hairs ; frons 
 unspotted, not tuberculate, clothed with long black hairs ; lunula 
 broad, yellow ; antennae widely distant from each other at the 
 base, more so than in the allied species, the first joint moderately 
 long, the third black, except on the lower basal corner which is 
 yellowish ; arista black, bare ; face very broad and very produced, 
 yellowish-dusted on the sides, where it is clothed with abundant 
 and long black hair; facial tubercle very broad, rounded, hori- 
 zontal, the black stripe broader than its sides, but not extending 
 above the base of antennae ; peristoma broad, wholly whitish yellow. 
 Thorax yellowish on the sides; scutellum yellow, with metallic 
 
ASARCIXA. STTtrHUS. 29 
 
 reflexions ; black-haired. Squamulae yellowish ; halteres white. 
 Abdomen as in eremophila, second and third yellow bands margined 
 on the sides by a black line ; genitalia yellowish grey, pale-haired. 
 Legs dark yellow, with black tarsi, the hind ones being yellowish 
 
 Fig. 5. Asarcina hirsuticepa, sp. n. Head of c?, X9. 
 
 towards the base. Wings long, faintly infuscated, with dark 
 yellowish stigma and black veins. 
 
 Type c? fr m Busiku, British East Africa, 5. ix. 1911 (E. J. 
 Stordy). This species, which has nothing to do with the Indian 
 genus Dideoides, Brunetti (1908), is a very important addition to 
 the genus Asarcina. 
 
 Genus 5. SYEPHUS, Fulricius (1775). 
 
 The rather numerous species in the collection before me can be 
 distinguished as follows : 
 
 1 (16) Eyes hairy ; postocular border fringed along 
 
 its whole contour with long and deuse 
 
 hairs; antennas wholly black, the third 
 
 joint elongate and rather pointed at the 
 
 tip ; face always with a black spot or 
 
 stripe in the middle. 
 L> (5) Pterostigma entirely yellow, not blackened 
 
 at base ; face distinctly yellow, the dust 
 
 not hiding the ground-colour ; peristoina 
 
 rather broad and yellow. 
 
 3 (4) Jowls with a black stripe running from the 
 
 lower corner of eye to the upper edge of 
 the buccal cavity ; abdomen with four 
 white bauds, which do not reach the 
 eides ; third longitudinal vein straight . . w/w;/s.>-, Wied.* 
 
 4 (3) Jowls wholly yellow, without black stripe ; 
 
 abdomen with three yellow bands reach- 
 ing the sides, the first widely interrupted 
 in the middle ; third vein sinuous, as in 
 Lasioplithicus ; abdomen very short, 
 black pilose except at base euttenfatus, sp. n. 
 
 * Not in the collection, included only for comparison. 
 
ou SYUPIIIDJF:. 
 
 5 (2) Pterostiguia with the base black or blackish ; 
 
 face grey-dusted ; peristoma usually war- 
 row and almost entirely black ; third 
 longitudinal vein always straight. 
 G (7) Third antennal joint very elongate, as long 
 as the arista, much swollen and pointed 
 at the end ; basal joint of hind tarsi 
 distinctly swollen ittflaticornisj sp. n. 
 
 7 (6) Third antennal joint much shorter than the 
 
 arista; basal joint of hind tarsi not 
 swollen. 
 
 8 (13) Third abdominal segment with a move or 
 
 less broad yellow band, which reaches 
 the anterior border. 
 
 9 (12) Peristoma very narrow and black; second 
 
 and fourth abdominal segments each with 
 a yellow band ; front femora yellow, with 
 blackened base. 
 
 10 (11) Wiogs entirely hyaline; yellow band of 
 
 second segment narrow adliyatus, Wied. 
 
 11 (10) Wings with the basal half infuscated : yel- 
 
 low band of second segment broader .... var. tricolor, Walk. 
 
 12 (9) Peristoma broader, with distinct black 
 
 lateral stripe ; second and fourth segments 
 without yellow band ; front femora 
 black var. melas, A ar. n. 
 
 13 (8) Band of the third segment whitish, not 
 
 broader than the others and distant from 
 the anterior border. 
 
 14 (15) Thorax shining ; wings pure hyaline ; 
 
 femora yellow, blackened at base ; face 
 white pilose ; abdomen with four distinct 
 bands claripennis, Loew. 
 
 15 (14) Thorax dullish ; wings faintly infuscated, 
 
 pubescent ; femora black ; face black 
 pilose ; abdomen with three less distinct 
 
 bands hirticeps, Loew. 
 
 l(j (1) Eyes bare ; postocular fringe short and 
 sparse ; antennae yellow, or rarely dark- 
 ened above, the third joint short and 
 rounded. 
 
 17 (18) Abdomen oval, the second segment with a 
 
 yellow spot on each side, the third and 
 fourth with a broad yellow transverse 
 band, which is slightly emarginate be- 
 hind cognatus, Loew. 
 
 18 (17) Abdomen pnrallel-sided, narrow, and linear. 
 19(20) Face wholly yellow; abdomen entirely 
 
 yellow, except base and three very narrow- 
 black stripes on hind bolder of second, 
 third and fcurth segments, which are 
 
 sometime s duplicated trisectiis, Loew. 
 
 20 (19) Face with a median black stripe ; abdomen 
 wholly black, with three pairs of } T ellow 
 oblique spots, those on third and fourth 
 segments in contact in the middle rediviciis, sp. n. 
 
SYKlMirs. 
 
 31 
 
 2. Syrplms eutaeniatus, sp. n. 
 
 $ . Length 1:2 mm. 
 
 Very distinct from any other of the copensis-gro\\\j on account 
 of its sinuous third vein and its very short hairy abdomen, which 
 bears three equal yellow bands reaching the sides. 
 
 This species shows unmistakable affinity to true Lasiopthicus, 
 but belongs without any doubt to the eapcntit-adligatvs-groiiip, 
 which is so characteristic of the Ethiopian fauna. 
 
 Head yellow, covered with dark grey tomentum on the occiput 
 and on the frons, the vertical portion of which, however, is broadly 
 shining black ; frons not swollen, clothed with short but dense 
 black hairs ; face with a small black tubercle and short dark hairs ; 
 peristoma broad, wholly yellowish grey, without the black stripe of 
 cctjjensis ; hair on the postocular border long and dense yellowish 
 above, white and thicker below ; antenna? entirely black, the third 
 joint less elongate and rounded at the tip ; eyes clothed with 
 short pale hair. Thorax shining black on the disc, with some 
 bluish reflexions, clothed with long erect pale yellowish hairs ; on 
 the sides of the dorsum there is a little grey dust ; pleurae dullish, 
 with pale hairs which form a tuft before the root of the wings. 
 Scutellum pale yellowish, mainly black-haired ; squamulse whitish, 
 halteres and plumula? white. Abdomen oval, shining bluish black, 
 with short black hair, except at base, where the hair is long and 
 pale ; first segment black ; second with a yellow band near the 
 fore border, interrupted towards the middle ; third and fourth with 
 an equal complete band on fore border ; fifth wholly black, with 
 only a small yellow spot on the sides at the fore border. These 
 yellow bands are clothed with short pale hairs ; the portion of the 
 segment just after the band is blacker and a little less shining 
 than the rest. Venter pale yellow, with two broad black bands 
 before the end and clothed with long white hair. Legs reddish 
 yellow ; femora blackened towards the base, those of the hind pair 
 more broadly, having only the apex yellow ; tarsi black, the hind 
 pairs yellowish at base. AVings hyaline, with black veins, narrowly 
 yellowish towards the base ; mediastinal cell dark yellowish over its 
 whole length, but the stigma not at all blackened at the base ; vena 
 spuriti strongly chitinised, as black as the other veins ; the shape 
 of third vein and of the subapical cell are exactly the same as in 
 Las. pyrastri. 
 
 Ti/fie $ . a single specimen, from Marsabit, British East Africa 
 (R. J. Stordy). 
 
 23. Syrphus inflaticornis, sp. n. 
 
 $ . Lencjth 11 mm. 
 
 Easily recognised by the very long, swollen, and pointed third 
 antennal joint, and by the distinctly swollen basal joint of hind 
 tarsi. 
 
 Head black ; frons wholly black, strongly shining, with purplish 
 reflexions towards vertex and above antennie, towards the middle 
 
32 SYKIMIIDJ.. 
 
 with a dullish less distinct transverse grey band, black-haired on 
 the middle, the vertical portion bare (perhaps denuded?); the 
 frons is depressed in the middle, the supra-antennal tubercle being 
 therefore very prominent ; face covered with dense grey tomentum, 
 which conceals the ground-colour, and with a shining median black 
 stripe extending to the base of the antennae ; facial tubercle rather 
 prominent ; sides of the face clothed with long pale hairs ; peri- 
 stoma narrow, wholly black ; postocular border with long hair ; 
 eyes covered with dense hair, which above is darker and short ; 
 antenna? black, almost reaching the epistoma ; third joint very 
 swollen, grey tomentose ; arista yellowish. Thorax as in the pre- 
 ceding species ; scutellum swollen, pale yellow and with pale hair. 
 Squamulae dirty whitish, halteres white. Abdomen clothed on its 
 whole length with rather long pale hair, chiefly on the sides ; it is 
 all bluish black and shining, the second and third segments with a 
 narrow basal whitish band, which is yellow by transparency, the 
 band on the third being closer to the fore border ; fourth segment 
 with a slight trace of a similar but darker band on the sides only ; 
 fifth entirely black. Venter black, with greyish bands and long 
 yellowish hairs. Legs black ; the four anterior tibiae and the knees 
 of the hind legs yellow ; first joint of hind tarsi very swollen, as 
 long as the other joints taken together. Wings as in the preceding 
 species, but the stigma blackened at base, the hyaline portion 
 before it being more distinct ; third vein almost straight. 
 
 Type 2 , from Mpumu, Uganda, 22. v. 1910 (Dr. C. A. 
 Wiggins)-, a single specimen. 
 
 24. Syrphus adligatus, Wiedemann (1824). 
 
 Very distinct, owing to the broad yellow band on the third 
 abdominal segment and the dullish thorax. 
 
 This species seems to be variable in the size and number of the 
 yellow abdominal bands, in the colour of legs and wings, and in the 
 hair of the face varying from pale to black. I have attempted to 
 distinguish the following three forms : 
 
 (a) adligatus (typical). 
 
 The band on second segment is narrow, that on third broad, and 
 that on fourth more or less broad ; the legs pale ; the wings greyish 
 hyaline. This agrees with the form figured by Mr. Austen in 1909 
 (Trans. Zool. Soc. xix. pi. iii. fig. 3), except that the end of the 
 abdomen is not yellow and the legs are not so black. 
 
 Two males and a female from Durban (F. Muir) ; a male from 
 Marsabit, British East Africa (E. J. Stordy) ; a female from 
 Mt. Kenia, W. side, Meru-Nyeri lid., 6,500 ft., 20. ii. 1911 (S. A. 
 Neave). Dr. Speiser has recorded the species from Kilimandjaro. 
 
 (b) tricolor, Walker (1852). 
 
 Distinguished by the wings being infuscated basally and by the 
 yellow abdominal bands being much broader, chiefly those on the 
 second and fourth segments. 
 
33 
 
 A male specimen from British East Africa, E. side of Aberdare 
 Mountains. 7.300 ft.. 24. ii. 1911 (T. J. Anderson} ; a female from 
 Blantyre, Xya*alaml (Dr. J. E. 8. Old). 
 
 (c) melas. var. n. 
 
 c? $ . Length 10 mm. 
 
 This form, which may be perhaps considered a distinct species, 
 is characterised by its prevalent black coloration and by its broader 
 jowls. 
 
 Frons of male entirely black (in the two preceding forms it is 
 yellowish grey towards the base) ; face grey, with strong bluish 
 reflexions, long black hair and broad black median stripe; peri- 
 stoma broadly black ; abdomen shining black, with a less broad 
 yellow band on the third segment alone ; legs black, the tibiae dark 
 reddish ; wings a little infuscated towards the basal half. 
 
 The female lias a broad grey peristoma, which bears a black 
 stripe as in capensis ; thorax duller, almost dullish grey ; the rest 
 as in the male. 
 
 Type cf and type from British East Africa, the former from 
 the E. side of Aberdare Mountains, 7,300 ft., ii. 1911, the latter 
 from X. of Mt, Kenia, 8,300 ft., 18. ii. 1911 (T. J. Anderson}. 
 
 2-5. Syrphus claripennis, Loew (1858). 
 
 Distinguished by its clear wings, whitish abdominal bands, and 
 paler head and legs. 
 
 Very near cipriisis, but differing in the pterostigma and the 
 want of a genal black stripe. I think that the present species is 
 the same as iittfi'.<cctu8, Wiedemann (1824), chiefly on account of 
 tli;' fact that it seems to be very common in South Africa. 
 
 A single male specimen from Yala Bridge. X. Kavirondo, British 
 Ivist Afrk-a. 21. viii. 1911 (C. W. Woodhouse}. 
 
 26. Syrphus hirticeps, Loew (1858). 
 
 Distinguished by its prevalent dark coloration on head, abdomen, 
 legs, and wings. 
 
 1 am in doubt if the specimens before me belong to the same 
 species as described by Loew from Xubia ; they agree well enough 
 with the description, but the bands on fourth and fifth abdominal 
 segments are wanting, and that on the third is but little developed ; 
 the thorax is dullish. 
 
 A male from Blantyre, Xyasaland Protectorate, v. 1910 (Dr. J. 
 K. N. Old) ; another male from Uganda, north spur of Kuwenzori, 
 27. ii. 11)12 (If. B. Owen). 
 
 27. Syrphus cogaatus, Loew (1858). 
 
 Very like corollce. but distinguished in the male by the third 
 and fourth abdominal segments being almost entirely yellow, with 
 only a dark brown hind border. 
 
 D 
 
34 SYRPHID.E. 
 
 A single male from Salisbury, S. Rhodesia (Q-. A. K. 
 Marshall}. 
 
 28. Syrphus trisectus, Locw (1858). 
 
 Very near fialteatus, but differing in its smaller size and 
 brighter orange abdomen ; the abdominal black bands are usually 
 not duplicated, that of the fourth segment generally being widely 
 interrupted in the middle; and the black supra-antennal spot is 
 always present. 
 
 Of six specimens examined, only a male from Durban has the 
 duplicated bands well developed and shaped almost as in balteatus ; 
 this specimen also is the only one which has the black band on the 
 hind border of the fourth segment entire. The eyes are wholly bare, 
 even in the undescribed male, which entirely resembles the female, 
 except in the sexual differences. 
 
 A male and a female from Durban (F. Mnir) ; three females 
 from British East Africa, one from Kenia Forest, near Luchi 
 River, 9. ii. 1911 (T. J. Anderson}, another from Ovanvi, 8. vii. 
 1910 (Dr. J. Puqli), and the third from Marsabit, 20. ix. 1911 
 (R. J. Stortly)\ a male from Obuasi, Ashanti. ll.viii. 1900 (Dr. 
 W. M. Graham}. This species was up to the present known only 
 from Caffraria, but has evidently a wide distribution throughout 
 the Ethiopian Region, where it replaces the European fialteatus. 
 
 29. Syrphus redivivus. sp. n. 
 
 c^ . Lenc/tli 10 mm. 
 
 A narrow elongate species, with black striped face, yellow 
 antennae, three partly interrupted yellow abdominal bands, and black 
 genitalia. 
 
 This species appears to belong to the auricollis-group, and its 
 allies among the described Ethiopian species are sckultzianus, Bex/d 
 (1908), citictifacies, Speiser (1910), and fees, Bezzi (1912). 
 
 Head black ; frons and face yellow, the former more reddish ; a 
 black supra-antennal spot and a brown facial middle stripe reaching 
 the base of the antemue ; peristoma narrow, yellow; facial tubercle 
 rounded, large, prominent; frons clothed with long dark hair, 
 face with white hair on the side ; vertical triangle small, not 
 very prominent; eyes bare, with the upper facets larger; antenna 1 
 short, yellow, the third joint rounded, narrowly darkened above ; 
 middle postocular border with silvery hairs. Thorax shining, 
 yellowish towards the sides, but without any sharply detined yellow 
 stripe, clothed with long erect dark hair ; pleura? blackish grey, 
 yellowish on the hind angle of mesopleura ; breast shining black, 
 bare. Scutellum dark yellow, with black hair. Squamuke dirty 
 white, halteres yellow. Abdomen shining black, but second, third, 
 and fourth segments broadly dull velvety black .on disc ; its hair 
 is long and dark, but pale on the base; first segment black; second 
 with an ovate yellow spot on each side, placed in the middle and not 
 reaching the sides ; third and fourth each with two oblique spots, 
 
SYEPHUS. SPHJEBOPHOBIA. 35 
 
 not reaching the sides and uniting in the middle, forming there- 
 fore a semilunar band, which is emarginate in the middle ; fifth 
 entirely black, with an indistinct lateral yellowish spot ; genitalia 
 shining black ; venter yellow, dark at the apex, smooth and shining 
 in the middle, where it is bare. Legs yellow, including the fore 
 coxa? ; tarsi dark at the apex ; hind legs with the femora and tibia? 
 broadly black. Wings greyish hyaline, with the mediastyial cell 
 wholly dark yellow, without a darkened stigma. 
 
 Type cJ, from the Cape (ex coll. W. W. launders). 
 
 Genus 6. SPHJEROPHOEJA, Sf. Fargeau (1825). 
 
 This is the first time that this genus has been recorded from the 
 Ethiopian Region. 
 
 30. Spliaerophoria qnadrituberculata, sp. n. 
 
 c? ? . Length of male 9 mm., of female 7 mm. 
 
 A somewhat aberrant species, distinguishable from any other in 
 the genus by the abdomen being without yellow bands and. in the 
 m.ile sex, provided with four very prominent tubercles, which recall 
 th.>se of the feiiLile of the Neotropical Acrochordonode* dentipes, 
 but are even more prominent. 
 
 Fig*. 6. Sphaerophoria qiuidritiiberc.iilata, sp. n. 
 Abdomen of tf from the right side. X 12. 
 
 . Head black, shining on the vertical triangle ; frons and face 
 , unspotted, with short and soft white hair; peristoma narrow, 
 yellow ; facial tubercle a little more prominent than the antenna I 
 one ; eyes bare, the line of contact much shorter than the vertical 
 triangle ; antenna? short, wholly yellow, the third joint rounded, 
 with a blackish arista ; postocular fringe very short and sparse, 
 dark and a little longer above ; posterior orbits silvery in the 
 middle. Thorax shining aeneous, clothed with erect grey hair; 
 lateral yellow stripe running from the humeri to the suture ; 
 pleune greyish, with opalescent reflexions and sparse hair, nieso- 
 and metapleune yellow. Seutellum yellow, with pale hair. 
 Sqnamulie small. Avhitish, with a short fringe ; halteres yellow. 
 Abdomen cylindrical, very narrow, with rather long but sparse 
 greyish hair ; first segment shining black ; second very long, 
 shining black, reddish towards the sides, with a narrow dull black 
 transverse band a little behind the middle ; third a little shorter, 
 
36 STRPHID.E. 
 
 shining black, dark reddish at the base and sides, with a dull 
 black band as on the preceding segment ; towards the middle it 
 bears a pair of very prominent, approximated, pointed, blackish 
 tubercles ; fourth segment short, reddish yellow, shining, with a 
 pair of more distant, less prominent, rounded, reddish protuberances ; 
 fifth segment in the shape of two scales, reddish at base and black 
 at apex ; genitalia hemispherical, large, bare, dark reddish above, 
 yellowish below, with two appendages beneath. Venter shining 
 black, much hollowed between the sternites, which are prominent 
 below, forming a sort of channel. Legs entirely yellow, including 
 coxae and trochanters, the femora at end and the tarsi darker, but 
 not black ; all the femora are incrassated and a little bent. Wings 
 wholly hyaline, vitreous, with black veins ; third vein straight ; 
 subcostal cell entirely blackish, the stigma therefore very con- 
 spicuous, in the shape of a black line. 
 
 Female. Head as in the male ; frons broad, shining black on the 
 vertical half, from which begins a broad black stripe which goes to 
 the base of the antennae, becoming reddish in front. Thorax and 
 scutellum as in the male, the dorsum blacker. Abdomen narrow 
 and elongate ; first and second segments wholly black, shining ; the 
 others dark reddish, shining, with bluish reflexions, without any 
 trace of the protuberances of the male ; last segment black ; venter 
 reddish. Legs and wings as in the male. 
 
 Type $ and type $ , a single couple, from Durban, ii. 1902 
 (F.Muir). 
 
 Genus 7. XANTHOGRAMMA, Schiner (1860). 
 
 I have placed in this genus, taken in a broader sense, the species 
 which cannot remain in &i/rjjJuts, on account of the complete bright 
 yellow lateral stripes of the thorax, nor in SjiJicero^horict, on 
 account of the different abdomen and genitalia. They can be best 
 included provisionally in the present genus, though having a slightly 
 different facies from the typical species, chiefly on account of the 
 abdomen being not so broad. The recently erected genus IscJii- 
 odon, Sack (1913) applies to the species of the group scuteUare- 
 CBgyptium ; this name can perhaps be used for all the species men- 
 tioned below : 
 
 1 (2) Third anteimal joint ovate, elongate ; 
 
 front coxse mainly black ; yellow lateral 
 stripe on thorax passing- the suture, but 
 not reaching the scutellum ; hind tro- 
 chanters of the male with a strong spine 
 and front tarsi with the internal claw 
 bifid at end (Ischiodon) eeyyptium, Wied. 
 
 2 (1) Third autennal joint rounded, short ; front 
 
 coxae wholly yellow ; lateral yellow 
 stripe on the thorax complete, reaching 
 to the scutellum ; hind trochanters and 
 fore tarsi of malt? simple. 
 
XA.yTIIOGRAM.MA. 37 
 
 3 (6) Middle yellow bands on the abdomen entire, 
 
 the first alo;ie being sometimes inter- 
 rupted. 
 
 4 (5) Face with a black median stripe or at least 
 
 darkened in the middle on the tubercle ; 
 a black supra-antennal spot also usually 
 present ; first yellow abdominal band 
 broadly interrupted rotundicorne, Loew.* 
 
 5 (4) Face wholly yellow, not even darkened in 
 
 the middle; snpra-antennal spot want- 
 ing ; first abdominal band never inter- 
 rupted, at the most constricted towards 
 the middle pfeifferi, Big 1 . 
 
 6 (3) Abdomen with four pairs of broad yellow 
 
 rounded spots calopus, Loew. 
 
 31. Xanthogramma aegyptium, Wiedemann (1830). 
 
 A very distinct species on account of the elongate third antennal 
 joint and incomplete yellow notopleural stripe, and, in the male sex, 
 the peculiar form of the front claws and hind trochanters. 
 
 In my recent paper on the Syrphidae collected by Fea (1912), 
 I have stilted that this species is distinct from the Oriental scu- 
 tellare, Fabr. (1805). This last, common throughout the Oriental 
 Region and described from the Island of Formosa as Ischiodon 
 trocha nt erica by Prof. Sack (1913), is distinguished from the 
 present species in hiving the spine of the hind trochanters much 
 thicker and proportionally shorter, the inner front claw simple, the 
 scutellum more darkened, and the first yellow abdominal band of 
 the female always intermitted in the middle. 
 
 The following mines are synonyms of eegyptium : IracJiy- 
 ptemm, Thomson (1869), felix, Walker (1852), fuscotibiale, 
 Macqiiart (1842), longicorne, Macquart (1842), and nafalense, 
 Mat-quart (1846) ; further, Syrpku* senegale nsis of Guerin-Mene- 
 ville (1835) seems to be only the form of the present species in 
 which the abdomen is entirely yellow in its apical half. 
 
 The species is common throughout the Ethiopian Region. 
 There are many specimens of both sexes from Northern and 
 Southern Nigeria : Baro, x. 1910 (Dr. A. Ingram) ; Zungeru, 
 xi. 1910 (Dr. J. W. S. Macfie) ; Zungeru and Aba, ix. 1910 
 ( J. J. Simpson) ; Agege, iv. 1911 (Dr. A. Council) ; Ikom, i. 1912 
 (E. Dai/reU). There are also specimens from British East Africa, 
 Isiola R. (E. J. StortJy), and from Salisbury, S. Rhodesia (Gr. A. 
 K. Marshall). 
 
 32. Xanthogramma pfeifferi, Bigot (1884). 
 
 Nearly allied to -rotund iconic, but easily recognised by the wholly 
 yellow irons and face, and by the entire first yellow abdominal 
 band. 
 
 * Not in the collection ; included for comparison. 
 
38 SYHPIHILE. 
 
 I have redescribed this species in the above-quoted paper on Feu's 
 Syrphids ; Bigot's description, which was previously included among 
 the synonyms of cegyptium, corresponds very well with these speci- 
 mens, chiefly because Bigot calls the third antennal joint "rounded." 
 Perhaps it is only an extreme form of rotundicorne, Loew (1858), 
 of which there are no specimens in the collection, but which is 
 common in South Africa, dentatum, Walker (1852), being probably 
 the same species, which is represented in the Oriental Region by 
 the nearly allied javannm, Wiedemann (1824). 
 
 Several specimens of both sexes : Karonga, Nyasaland, v. 1910 
 (Dr. M. Sanderson} ; Zungeru, N. Nigeria, xi. 1910 (Dr. J. W. 
 8. Macfie and J. J. Simpson} ; Koba District, Nile Province, 
 Uganda, vi. 1909 ; Lilongwe, Nyasaland, 8. i. 1911 (Dr. J. E. 8. 
 Old} ; Angola, 1908 (C. Well-man} ; Mauritius, 1911 (N. . Rock}. 
 
 This species also seems to be widely spread throughout the 
 Region. 
 
 33. Xanthogramma calopus, Loew (1858). 
 
 Very distinct from any other species, on account of its eight 
 very broad and rounded yellow abdominal spots, w r hich recall those 
 of Syrplms bratteri. 
 
 A single female specimen from Pinetown, Natal, 20. iv. 1902 
 (F. Muir). 
 
 Genus 8. BACCHA, Fair ictus (1805). 
 
 Of this rich genus, only the following species have been recorded 
 or described from the Ethiopian Region : (1) pi \cta ; Wied. (1830), 
 (2) vittata, Wied. (1830), (3) sappJiirina, Wied. (1830), (4) 
 claripennis, Loew (1858), (5) favicoruis, Loew (1863), (6) 
 punctum, Bigot (1885), (7) Irevis, Karsch (1887), and (8) enry- 
 ptera, Bezzi (1908). Of these the second is the same as the first, 
 and the fifth and sixth are the same as the third ; the seventh is 
 perhaps the same as the fourth. There are thus only four good 
 Ethiopian species, compared with thirty from the Oriental Region. 
 It is therefore not surprising that the present collection contains 
 numerous new species, some of which are very interesting and 
 beautiful. 
 
 They can be tabulated as follows : 
 
 1 (2) Wings very narrow and cuneiform at the 
 base, without alula and without promi- 
 nent axillary lobe ; froiis produced before 
 the vertex into a conical protuberance, 
 which bears the ocelli ; abdomen very 
 long and narrow, much longer than the 
 wings ; face yellowish below on the sides, conifrons, sp. n. 
 
 H (1) Wings not narrowed and often very dilated, 
 always with well-developed alula and 
 axillary lobe ; frons without protuber- 
 ance or with a very slight one j abdomen 
 
BACCIIA. 30 
 
 not so elongated, and never longer than 
 the wings. 
 
 3 (16) Face yellow or reddish ; scutellum and 
 
 thorax very often yellow or yellow- 
 spotted. 
 
 4 (15) Wiugs strongly dilated and with extended 
 
 brown or yellow pattern ; antennae yel- 
 low ; face without black middle stripe; 
 third vein sinuous; third antennal joint 
 very short ovate. 
 
 o (12) Scutellum and pleurae wholly yellow. 
 
 C> (11) Wings entirely blackish brown, with a 
 middle yellowish streak and a preapical 
 hyaline band. 
 
 7 (10) Wings with the axillary cell and alula 
 
 blackish brown, like the rest ; supra- 
 antennal tubercle very prominent and 
 violet -coloured ; oceflar tubercle also 
 prominent; thorax of female yellow with 
 three or five black longitudinal stripes. 
 
 8 (9) Wings with only the central yellow streak 
 
 and with the preapical hyaline band very 
 broad, extended to the hind border ; 
 
 thorax of the male black picta, Wied. 
 
 (8) Wings with an additional yellow streak 
 in the base of the anal cell; preapical 
 hyaline band narrowed below and not 
 reaching the hind border, the apical 
 brown spot being in contact with the 
 discal brown patch var. sttperpictn, 
 
 10 (7) Wings with hyaline alula and yellowish [var. n. 
 
 hyaline axillary cell and base of anal cell ; 
 supra-antennal tubercle less prominent 
 and yellow, black behind ; ocellar tubercle 
 not at all prominent ; thorax of female 
 without black stripes helva, sp. n. 
 
 11 (6) Wings with the basal half yellow, a broad 
 
 blackish middle band and a smaller apical 
 one, this last preceded by a complete 
 hyaline band ; thorax of female with only 
 two longitudinal black stripes grahami, sp. n. 
 
 12 (5) Scutellum entirely black or at the most 
 
 with a yellow border ; pleurae black, at 
 most with a yellowish spot. 
 
 13 (14) Scutellum black, yellow-bordered ; pleurae 
 
 with a yellowish spot euryptera, Bezzi.* 
 
 14 (13) Scutellum and pleurae wholly black ; wings 
 
 blackish, with a broad hyaline preapic.-al 
 band, a blackish apical spot, a hyaline 
 middle streak and hyaline axillary cell 
 and base of anal cell : ........ netted, sp. n. 
 
 15 (4) Wings not dilated and entirely greyish 
 
 hyaline ; antennae wholly black ; face 
 with a black middle stripe ; third vein 
 
 * Not in the collection ; it was described from the Congo. 
 
40 SYJ1P1ILDJE. 
 
 straight ; thorax and scutellum entirely 
 black ; abdomen with distinct paired 
 yellowish spots; third antennal joint 
 very elongate evtraned, sp. n. 
 
 16 (3) Face black, or at most with yellowish mar- 
 
 gins to buccal cavity ; thorax and scu- 
 tellum always black ; wings either entirely 
 hyaline or evenly infuscated, without any 
 broad yellow or brown pattern. 
 
 17 (20) Wings hyaline, with a small brown apical 
 
 spot at the end of the submarginal cell. 
 
 18 (19) Pterostigma pale yellowish ; eyes adorned 
 
 with three dark 'transverse bands ; abdo- 
 men black at base and reddish with black 
 .stripes on the broadened part ; female 
 with a rather long and flattened ovi- 
 positor ic/uieumonea, sp. n. 
 
 19 (18) Pterostigma black ; eyes with only a middle 
 
 band ; abdomen wholly black ; female 
 
 ovipositor not protruding sapphirina, Wit-d. 
 
 20 (17) Wings without defined brown apical spot, 
 
 at most faintly infnscated at the extreme 
 tip. 
 
 21 (24) Abdomen with a long stalk, the second 
 
 segment being cylindrical, and as long as 
 or longer than the third. 
 
 22 (23) Sides of buccal cavity black, like the rest 
 
 of the face ; wings hyaline or faintly infus- 
 cated, in the female narrowly but dis- 
 tinctly darkened at the tip; thorax grey- 
 dusted : antennre short and dark prccusta, sp. n. 
 
 23 (22) Sides of buccal cavity yellowish ; wings 
 
 strongly infnscated, almost blackish along 
 the lore border; thorax golden-dusted; 
 antennfe a little longer and paler yellow . . marginata, sp. n. 
 
 24 (21) Abdomen with a short stalk, the second 
 
 segment being shorter than the third, 
 not cylindrical and constricted towards 
 the middle ; wings hyaline, with dark 
 stigmatic streak. 
 
 25 (26) Antenna) and legs mainly yellow claripennis, Loew. 
 
 26 (25) Antennae dark and legs mainly black brevis, Karsch. 
 
 34. Baccha conifrons, sp. n. 
 
 . Length of body 11 mm., of wing 7 m m. 
 
 A slender, elongate, Ichneu?non-\ike species, easily distinguished 
 by the conical ocelliferous prominence on the irons, and by the 
 proportionally short and very narrow wings, which lack the alula 
 and axillary lobe. 
 
 Erons dull velvety black, shining bluish on the prominent supra - 
 antennal tubercle ; there is a grey transverse band before the 
 shining portion ; ocellar tubercle more prominent than the supra- 
 antennal one, shining black and bare ; frons clothed with short 
 dark hair near the vertex and in the depression between the two 
 
x BACC1IA. 
 
 tubercles; occiput dull bluck, grey pollinose, with a fringe of 
 glittering, stiff white Iriir ; face shining black towards the middle, 
 dullish and white pollinose on the sides, yellowish on the lower 
 portion of the cheeks and on the very narrow peristoma ; facial 
 tubercle not very prominent, rounded ; hairs on the side of the face 
 whitish and very soft. Antennae short, entirely orange-coloured, 
 the first two joints very short, the third bluntly ovate ; arista 
 longer than the antenna, brown, yellowish toward the base. Eyes 
 bare, apparently adorned with two transverse dark bands, one on 
 the middle, the other on the superior fourth. Thorax metallic 
 black, with purple and bluish reflexions, clothed with short, silky, 
 whitish hair, which, however, do not conceal four rounded spots, 
 two before and two behind the suture ; the sides and a band 
 along the suture are grey-dusted ; humeri with a broad rounded 
 yellow spot ; pleuive bluish black, with greyish dust and short 
 white hair. Scutellum finely punctate, wholly bluish black, with 
 very short dark hair. Squamulae very small, yellowish, without 
 fringes; halteres yellow, with darker knobs. Abdomen very narrow, 
 the stalk being formed by the second and the front half of the third 
 segments, the rest being very little dilated ; therefore the abdomen 
 appears to be more linear than spatulate ; second segment black, 
 reddish yellow towards the base, like the first, longer than the 
 third ; third, fourth, and fifth dark reddish yellow, shining, with a 
 narrow longitudinal blackish stripe, and two less distinct Literal 
 blackish stripes at the base of the third segment ; sixth segment 
 black ; after the sixth segment there are two other black segments, 
 terminated by a blackish bilobate scale, which forms a peculiar 
 ovipositor. Venter yellowish, black at the tip; the reddish seg- 
 ments are bordered by a very narrow black line on the exterior 
 sides ; the second segment and the constricted portion of the third 
 are clothed with thin erect white hair on the sides, the rest is 
 clothed with short depressed whitish hair. The four anterior legs, 
 with the coxae, wholly pale hit eons ; hind legs with bluish, 
 thickened coxae, black femora yellowish at the tip, black tibiae 
 yellow towards the base, and yellow tarsi a little darkened at the 
 apex. "Wings greyish hyaline, with black veins ; subcostal cell 
 and stigma wholly black ; a blackish elongate apical spot extends 
 from the end of the first to the end of the third longitudinal vein ; 
 third vein sinuous ; submarginal cross-vein very sinuous ; seventh 
 longitudinal vein not sinuous at end, the anal cell shaped as usual. 
 Type $ , a single specimen from Obuasi, Ashanti, 28. vi. 1907 
 (Dr. W. M. Graham). 
 
 35. Baccha ichneumonea, sp. n. 
 
 $ . Length of body 9 mm., of wing 6 mm. 
 
 A medium-sized species, distinguished by its red and black 
 spotted abdomen and by the very long ovipositor of the female. 
 Not unlike a small Ichneumonid wasp of the genus Cri/ptus, and 
 resembling conifrons in having very small and not fringed squanmla>. 
 
42 SYRPIIID.K. 
 
 Head shining black, the occiput also verv little dusted ; occipital 
 fringe of rigid white hairs well developed ; frons very short and 
 with dark hairs, the whitish transverse middle band ill-defined ; 
 antennal tubercle not very prominent, the ocellar tubercle not at all 
 prominent; face shining black, with pale grey dust and with sparse 
 pale hair on the sides, the central tubercle small but sharp and 
 prominent ; peristoma linear ; antennae very short, wholly orange- 
 coloured, with short, bluntly ovate third joint and bare yellow 
 arista ; eyes with two bands, one on the middle, the other on the 
 superior fourth. Thorax black aeneous, metallic, shining, clothed 
 with thin and depressed whitish hairs; pleune with erect short 
 hairs ; humeral calli very small and indistinct, reddish. Scutellum 
 like the thorax pale-haired ; squamulse and halteres yellowish. 
 Abdomen proportionally short ; first and second segments entirely 
 black, shining, with long erect white hairs on the sides ; second 
 segment as long as the third, not cylindrical, a little constricted 
 towards the middle, alone forming the stalk ; the third, fourth, and 
 fifth segments, forming the spatulate and rather broad portion of 
 the abdomen, are reddish with a median longitudinal black stripe, 
 and the third and fourth besides with an oblique black streak on 
 each side proceeding from the posterior corners and passing the 
 middle of the segment. After the fifth segment there is only the 
 ovipositor, which is longer than this segment, rectangular in si rape, 
 less attenuated at end and black with the base red ; it consists of 
 two broad flattened scales, a superior and an inferior one, the first 
 eiuling in three, the second in two points. Venter of a reddish 
 colour. Legs short and stout, entirely pale yellow, with a sharply 
 defined and broad black preapical ring on the hind femora. Wings 
 not widened, hyaline, vitreous, the subcostal cell only pale yellowish 
 at end ; apical brown spot not large, triangular, extending from 
 the end of the second to the third vein, and along this vein from 
 the subapical cross- vein to the tip ; third vein faintly sinuous ; 
 anal cell of usual shape ; alula and axillary lobe well developed. 
 
 Type $ , a single specimen from Salisbury, S. llhodesia ( G. A. 
 K. Marshall). 
 
 36. Baccha picta, Wiedemann (1830). 
 
 A handsome species, easily distinguished on account of its 
 yellow, black-striped thorax and very broad and blackish-brown- 
 tinged wings, which bear an abbreviated middle yellow stripe and 
 a broad complete preapical hyaline band. 
 
 Loew has already recorded the variability of this species as 
 regards the colouring of the spatulate portion of the abdomen, 
 which varies from entirely black to reddish yellow with three black 
 stripes. The black stripes of the thorax vary also from two to five ; 
 sometimes they are even dilated and fused together, the thorax 
 being therefore wholly black in front of the suture. 
 
 The previously undescribed male is like the female, but has the 
 thorax wholly black on the back, except a reddish-yellow lateral 
 
EACCHA. 43 
 
 stripe, extending from the humeri to the scutellum. The line of 
 contact of the eyes as long- as the very narrow vertical triangle ; 
 antennal tubercle less glittering violet. Abdomen black, with 
 yellowisli ill-deHned spots on the sides of the third and fourth 
 segments. Ocellar tubercle not prominent. 
 
 One male and three females from Obuasi, Ashanti, vi.-viii. 1907 
 (Dr. W. 3L Graham). 
 
 Yar. superpicta, var. n. 
 
 $ . Length of body 10 to 11 mm., of wing 8 to 9 mm. 
 Very like females of the typical form, which have a reddish- 
 blaek striped abdomen, but the second segment showing always a 
 black ring at the apex. The frons has the same coloration and 
 similarly prominent antennal and ocellar tubercles, the antennal 
 one being violet-coloured, but narrowly yellow in front ; the eyes 
 seem to have only a middle brown band, as in the typical form. 
 The halteres have also a blackish club. Wings of the same shape 
 
 Fig 1 . 7. Bacclta picta, var. superpicta, var. n. 
 Wing of $ . X 7. 
 
 and coloration, but with the following two well-marked differences: 
 (1) there is another yellow stripe, which occupies all the base of 
 the anal cell and extends along the seventh vein to the middle of 
 the same cell, ending in a point ; (2) the hyaline preapical band is 
 verv narrow and short, ending before the hind lower corner of the 
 first posterior cell. The brown apical spot is therefore fused with 
 the brown middle band, not broadly separated as in the preceding 
 form. 
 
 Type $ and three additional specimens from the same locality 
 and collector as the typical form, vii. ix. 1907. 
 
 37. Baccha grahami, sp. n. 
 
 2 . Length of body 9 to 10 mm., of wing 8 to 9 mm. 
 
 A very elegant species near picta, but at once distinguished by 
 the very different wing-pattern, which is yellow basally, with a 
 broad median brown band, and hyaline apically, with a brown band 
 at the tip. 
 
 Head as in picfft, both in shape and coloration ; antenna? orange- 
 yellow ; eyes apparently with a single brown band ; occiput bearing 
 
44 SYIU'HIILE. 
 
 a complete fringe of rigid and glittering yellowish hair. Thorax 
 wholly yellow, with only three parallel black stripes in the centre; 
 the yellowish- grey erect hair on the back and scutellum is 
 thick and twice as long as in picta. Squamulae and halteres as 
 in picta. Abdomen shaped as in picta ; it is wholly yellow, 
 with a black ring at the end of the second segment, a black 
 longitudinal stripe from the base of the third segment to the end 
 of the abdomen, and a short oblique black streak on the hind 
 corners of the third and fourth segments ; hair rather long, that 
 on the spatulate portion also long and dark. Legs with the coxse 
 entirely pale yellow, without any dark marking. Wings as broad 
 as in picta and of similar shape ; third vein only slightly sinuous, 
 and the seventh likewise, the anal cell therefore almost regular at 
 the apex ; wings yellow from the base to the small cross- vein, 
 
 Fig. 8. Baccha graliami, sp. n. $ . X 5. 
 
 leaving the alula and the hind border of the axillary cell almost 
 hyaline ; the median brown band begins at the fore border a 
 little before the end of the auxiliary vein and goes perpendicularly 
 to the hind margin, where it ends at the apex of the third posterior 
 cell ; subcostal cell filled up with brown to the extreme end ; apical 
 brown band running from the end of the first to the end of the 
 fourth vein ; the hind border of the wings is infuscated from the 
 tip to the end of the axillary cell. The veins are black, but yellow 
 in the vellow portions of the wing. 
 
 Type $ and another specimen from Obuasi, Ashanti, vi.-viii. 
 1907 {Dr. W. M. Graham}. Named in honour of the collector, 
 who has discovered so many interesting new species of West African 
 Diptera. 
 
 38. Baccha helva, sp. n. 
 
 $ . Length of body 13 mm., of wing 11 mm. 
 Near picta, but more robust, without black stripes on the thorax. 
 
BACCITA. 
 
 45 
 
 with differently shaped frons, and narrower wings, with a different 
 pattern. 
 
 Frons shining bluish hlack at the vertex, with a grey hand before 
 the ocelli ; antennal tubercle less prominent, yellow, black behind ; 
 ocellar tubercle only slightly prominent ; f rons clothed with short 
 pale hair; face and penstoma wholly reddish yellow, the facial 
 tubercle more prominent than in picta ; antennae and arista orange- 
 coloured ; the eyes do not seem to be banded. Occiput black, 
 o-n-vish-dusted, whitish on the lower orbits ; the occipital fringe 
 seems to be limited to the superior part. Thorax and scu- 
 U'llum entirely shining reddish, with very short whitish hair ; 
 
 Fig. Q.-Bacclia lielra, sp. n. $. X 4. 
 
 pleurae paler above, darkened below like the pectus, with very 
 short hair. Squamula? yellowish, with a short golden fringe; 
 halteres yellowish. Abdomen proportionally shorter and broader, 
 the second segment being as long as the third : it is wholly reddish, 
 with indistinct black spots at the end of the second and on the 
 posterior corners of the third and fourth segments; hair on the 
 stalk pale and erect, on the rest dark and depressed. Legs includ- 
 ing the coxae wholly yellow, without any dark marking. Wings 
 distinctly less broad than \i\picta\ third vein sinuous as in picta, 
 and the seventh likewise, the anal cell therefore suddenly constricted 
 to a point before its end. The wings are blackish brown, but with 
 a broad and complete hyaline band, and besides with hyaline alula 
 and hyaline base of anal and axillary cells : the middle yellowish 
 spot is not a simple streak, but is more than double as broad, 
 extending to the small cross-vein and leaving a whitish spot in the 
 submarginal cell just above the bifurcation of the second and third 
 veins: apical isolated spot as in picta. 
 
4G SYRPHIDJE. 
 
 Type , a single specimen from Durban, Mitchell Park, 22. i. 1903 
 (F.'Muir). 
 
 It is quite possible that B. Jielva is the female of the very 
 dark-coloured B. neavei, described below. 
 
 39. Baccha neavei, sp. n. 
 
 c? . Length of body 11 to 12 mm., of wing 9 to 10 mm. 
 
 A species evidently belonging to the picta-growp, but distin- 
 guished from any other on account of the wholly black coloration 
 of thorax and scutellum ; in all probability, however, the unknown 
 female will be found to be paler-coloured than the male. 
 
 Head black ; face yellowish red, the middle tubercle more yellow, 
 the sides with bluish reflexions arid sparse tomentum, and also 
 with some dark hairs ; peristoma narrow, blackened behind ; frontal 
 triangle shining blackish aeneous, dark-haired ; the not very pro- 
 minent antennal tubercle is yellow towards the lumile and somewhat 
 violet-coloured on the sides ; vertical triangle very narrow, aeneous 
 black, black-haired ; occiput black, whitish-dusted, with a complete 
 white fringe, darkened above ; lateral margin of the eyes white ; 
 antennae dark orange-coloured, the basal segments blackened, with 
 bluntly ovate third joint and brown arista, which is, however, yellow 
 at the base and sometimes shortly pubescent. Line of contact of 
 eyes as long as the vertical triangle ; eyes apparently adorned with 
 a single median dark band. Thorax and scutellum entirely metallic 
 shining aeneous, with short pale hairs ; humeri very narrowly 
 reddish ; pleurae like the back, darkened above, clothed with 
 slightly longer hairs. Squamulae yellow, with a short fringe ; 
 halteres whitish. Abdomen very narrow, cylindrical, only slightly 
 spatulate, wholly shining black ; third and fourth segments with 
 an oblique yellowish spot towards the middle of the sides, some- 
 times fused to form a complete band ; hair on the stalk very 
 long and erect, otherwise short and dark. Genitalia black, grcv- 
 dusted and grey-haired. Front legs with the coxae entirely pale 
 yellow ; middle legs with the femora blackened behind towards the 
 base ; hind legs with the femora black, yellow at the apex, and 
 the tibiae yellowish with a more or less distinct subapical black 
 ring. Wings less broad than in pi eta, with black veins, the third 
 and the seventh sinuous, the anal cell therefore irregularly shaped 
 as in picta ; wings blackish brown, but with hyaline alula, axillary 
 cell, and hind border ; there is a narrow hyaline streak in the 
 middle extending from the bifurcation of the second and third 
 veins to the third posterior cell; subcostal cell black; a broad 
 hyaline preapical band and a broad apical brown spot extending 
 from the end of the lirst to the third vein, and often even passing 
 it more or less. 
 
 Type tS and two additional specimens from Lamoru Station, 
 Uganda Ely., British East Africa, 9-10. iii. 1911, 7,340 ft., col- 
 lected by Mr. S. A. Neave, in whose honour the species is named. 
 There is also a male specimen from Durban, G. vi. 1903 (F. Mitir). 
 
BACCHA 47 
 
 40. Baccka extranea, sp. n. 
 
 c? . Length of body 11 nim., of wing 9 mm. 
 
 Distinguished from any other known African species by its 
 wholly black antenna? (which besides have an elongated third joint), 
 the black-striped face, and the sharply-defined pale yellowish abdo- 
 minal spots. The present species has no ally in the African fauna, 
 and resembles the American clavata, Fabr., from which, however, 
 it is at once distinguished by the wholly black scutellum. 
 
 Frontal triangle and face whitish yellow; lunula black ; a black 
 median stripe on the face extending from the buccal cavity to the 
 lunula, but becoming smaller and undefined above ; peristoma 
 narrow, pale yellow, with a narrow blackish border along the eyes ; 
 vertical triangle shining black ; occiput black, grey-dusted, with a 
 fringe of white, thick, and soft hair, which is very different from 
 the sparse and rigid hair forming the same fringe in the preceding 
 species ; antenna? wholly black, the third joint rather elongate, 
 almost as long as the arista, which is brown and short ; eyes 
 touching along a line equal to the length of the vertical triangle, 
 and apparently not banded. Thorax shining seneous black, without 
 any yellow marking, clothed with erect greyish hair ; pleura? 
 slightly greyish, with longer white hair. Scutellum like the 
 thorax, wholly shining bluish black. Scmaniuhe white, with a 
 short fringe; halterts white. Abdomen narrow, entirelv black, 
 the spatulate portion not very broad ; second segment cylindrical, 
 as long as the third : hairs on the stalk short; second segment 
 with a small rounded whitish spot on the middle of the sides; 
 third with a like spot, which is, however, broader and nearer to 
 the base ; fourth with two larger spots, which are almost in con- 
 tact with the base and approach each other above in the middle. 
 < Jenitalia shining black, with a short yellowish appendage beneath. 
 The four anterior legs are reddish yellow, with the basal half of 
 femora black and with the tibia? bearing a sharply defined median 
 black ring, tarsi blackened at the apex ; hind legs with the femora 
 black, yellow at the extreme tip, the tibia? black, but broadly yellow 
 towards the base; the tarsi black at the apex. AVings narrow, 
 greyish hyaline, without any distinct marking; sti^mal streak ] ale 
 yellowish ; third vein straight : seventh also straight, the anal cell 
 being therefore regularly lanceolate at the end ; veins black ; 
 alula and axillary lobe well developed ; postical cross-vein almost 
 straight. 
 
 Till><- cf, a single specimen from Salisbury, S. Rhodesia (G. A. 
 K. Marshall). 
 
 41. Baccha marginata, sp. n. 
 
 J . Length of body 12 mm., of wing 10 mm. 
 
 Distinguished by the golden pubescence on the thorax, by the 
 yellow margins of the buccal cavity, and by the infuscattd wings, 
 which have a blackish fore border. 
 
48 STHPHTDJE. 
 
 Head black ; occiput with dark grey dusting, whitish on the 
 sides below, and with the usual fringe of yellowish, rigid hairs; 
 vertical triangle black, short and very narrow, black-haired ; frontal 
 triangle aeneous, with some dark hairs above and on the sides ; 
 frontal tubercle rounded, prominent, violet-coloured, shining purple 
 on the sides, with a semicircular depression above ; face shining 
 aeneous above and towards the middle, grey-dusted on the sides, 
 yellowish below, the sides of the buccal cavity and the peristoma 
 yellow, this last black behind ; antennae dark luteous, the third joint 
 short-oval ; eyes with the middle brown band only, touching along 
 a line which is a little longer than the vertical triangle. Thorax 
 aeneous, without yellow markings, punctate, not very shining, clothed 
 with depressed golden hairs ; pleurae more shining, with longer 
 golden hairs on the mesopleurae ; scutellum wholly aeneous, punctate, 
 with very short and sparse hairs. Squamulae yellowish, with a short 
 fringe ; halteres yellowish. Abdomen long and slender, almost 
 linear ; the hairs on the sides of the stalk are erect and yellowish, 
 of medium length, the others are short and darker ; first segment 
 aeneous in the middle, yellowish on the sides ; second entirely 
 shining black, cylindrical, as long as the third ; third and fourth 
 at the base each with two ill-defined yellowish spots, which are 
 bifid behind ; fifth entirely black ; genitalia shining aeneous, pale- 
 haired ; venter black, in the middle of the third and fourth seg- 
 ments there is a yellow spot, which is bifid behind. The four front 
 legs and the front coxae are yellow, the tarsi alone being darkened 
 at the tip ; hind femora yellow, with a broad preapical black ring ; 
 hind tibiae blackish, with broad yellow base ; hind tarsi blackish, 
 the first joint yellowish. Wings of normal size, evenly infuscated 
 with a yellowish-brown tinge, which is a little paler on the hind 
 border near the base ; fore border blackish in the costal, mar- 
 ginal, and end of submarginal cells to the end of the third vein ; 
 subcostal cell and stigma black ; third vein rather sinuous ; seventh 
 vein bent up at the end, and therefore the shape of the anal cell 
 is like that in the broad-winged species, but not so accentuated. 
 The peculiar fleck at the end of the second basal cell is more 
 conspicuous than usual in the clear- winged species ; from this fleck 
 issues, as in the other species, a vein-like fold which divides the 
 upper cross- vein between the second basal and the discal cells. 
 
 Type d , a single specimen from Obuasi, Ashanti, 8. xi. 1907 
 (Dr. W. M. Graham). 
 
 42. Baccha sapphirina, Wiedemann (1830). 
 
 A black species, easily distinguished by the bright orange 
 antennae, by the shining bluish transverse abdominal bands, and by 
 the pure hyaline wings, which bear a black stigma and a black 
 apical spot. 
 
 B.favicorHts, Loew (1.S03), and B. punctual. Bigot (1883), 
 are certainly identical with the present species; in ]908 I used 
 the former name in recording the species from Krythr;ea. Hut. 
 
BACCHA. 49 
 
 subsequently, the late 31 r. Yen-all recorded the Oriental sapphirina 
 from Aden, and Dr. Speiser has even reported it from Erythraea 
 therefore I now think that we have only one species, which is widely 
 distributed in the Oriental and Ethiopian Kegions. like Paragus 
 serratus. 
 
 Eves with a median brown band only. 
 
 There are in the collection six males and two females from Zun- 
 geru, Northern Nigeria, 29. iii. 1911 (Dr. J. W. S. Macfie} ; also a 
 male from Durban, 6. vi. 1903 ( F. Muir). Another male from 
 Salisbury, S. lihodesia (G. A. K. Marshall}, shows below the 
 stigma an ill-defined dark yellowish spot, extending over the small 
 cross-vein to the fourth vein, like that Avhich I described in 1908 ; 
 Dr. Kertesz has figured it as characteristic of the male wing in 
 Ann. Mus. Nation. Hungar. xi. p. 280, fig. 7 a (1913), but in 
 Ethiopian specimens it is often entirely wanting. 
 
 43. Baccha praeusta, sp. n. 
 
 . Length of body 8 to 10 mm., of wing 5 to 7 mm. 
 
 A black species, very like the preceding, but with darker antennse 
 and greyish hyaline wings, which have no apical spot, but are only 
 narrowly infuscate near the tip. 
 
 Head" shining black, with bluish reflexions ; frons pale-haired, 
 with a transverse whitish band on the depression ; antermal tubercle 
 rounded and large, rather prominent ; no distinct ocellar tubercle ; 
 facial tubercle small, but narrow and cariniform ; peristoma linear ; 
 face with whitish dusting on the sides ; occipital fringe of typical 
 shape, white ; eyes apparently with the middle band only ; antenna} 
 short, dark yellow, almost brownish. Thorax and scutel'lum shining 
 black, without any yellow marking, clothed with sparse whitish 
 hairs, which are longer and whiter on the mesopleurae. Halteres 
 and squamulse white, the latter with short white fringe. Abdomen 
 with a long stalk and the spatulate portion not very broad ; it 
 is black, with bluish bands at the base of the third and fouith 
 segments, that on the third broader than the other; stalk with 
 long erect white hairs on the sides, the hairs elsewhere rather 
 long, but darker. Venter black. Legs yellow, with black coxae ; 
 the four front femora broadly black at the base, but the extreme 
 base yellowish ; hind femora black, narrowly yellow at both ends ; 
 tibiae' black, broadly yellow towards the base ; tarsi black, with 
 yellowish first joint. Wings short and rather broad, rounded out- 
 wards, uniformly pubescent and therefore greyish hyaline ; the 
 stigma blackish; the apical infuscation small, but very distinct; 
 third and seventh veins almost straight ; alula and axillary lobe 
 broad ; veins black and thick. 
 
 Type $ and four additional specimens from Obuasi, Ashanti, 
 viii.-xii. 1907 (Dr. W. 31. Graham). 
 
 r Male. A specimen from Durban, 1903 ( F. Jlfuir), seems to 
 be the male of the present species. Head, antennas, and thorax as 
 in the female. Abdomen with a long stalk, with the spatulate 
 
 E 
 
50 STEPHIDJE. 
 
 portion shorter and broader; legs with the four front femora 
 entirely yellow and the hind ones with the basal half yellow ; wings 
 narrower and longer, without the apical infuscation, and with 
 more slender veins. 
 
 Another male from Zungeru, N. Nigeria, xi. 1910 (Dr. J. W. 8. 
 Macfi.e), is very similar, but has the wings infuscated with a 
 yellowish-brown tinge. 
 
 44. Baccha ? brevis, Karsch (1887). 
 
 Near claripennis, having hyaline wings and a short abdominal 
 stalk constricted in the middle, but apparently distinct, on account 
 of its darker antenna? and legs. 
 
 I refer with doubt to this species a female specimen from 
 Chirinda Forest, Melsetter District, S. Rhodesia, x. 1905 (G. A. K. 
 Marshall), which is 8 mm. long and has dark luteous antennae, 
 with the third joint blackened above, and almost black legs, with 
 only the knees and the basal joints of the tarsi yellow. In other 
 respects it answers to the description of claripennis ; the true 
 Irevis seems to be smaller, only 6 mm. in length, and was found 
 at Loanda, Angola. The pterostigma is pale yellowish, not brown 
 at the base. 
 
 Genus 9. EHINGIA, ScopoU (1763). 
 
 For a long time the only known Ethiopian species of this genus 
 was that described by Loew in 1857 ; Austen added a second species 
 in 1893, and I myself a third in 1908 ; more recently four other 
 species have been described by Dr. Speiser and by myself . It seems 
 that the Ethiopian fauna is very rich in species of this genus, 
 chiefly of the characteristic group of metallic-blue forms. Those 
 in the collection can be distinguished as folloAvs : 
 
 1 (2) Thorax and scutellum entirely yellow ; 
 
 frons of the female wholly yellow ; snout 
 wholly yellow, without black band; abdo- 
 men yellow, with very narrow black hind 
 borders to the segments lutea, sp. n. 
 
 2 (1) Thorax either entirely metallic blue, or 
 
 entirely black, or with only the sides and 
 pleuraB yellow. 
 
 3 (6 N > Abdomen yellow with black or blue bands. 
 
 4 (5) Sides of thorax and pleurae metallic aeneous, 
 
 with only some small yellowish markings; 
 scutellum dark metallic; abdominal bands 
 black, that on the second segment not 
 dilated towards the sides semiccendea, A ust. 
 
 5 (4) Sides of thorax and pleurae yellow; sc-u- 
 
 tellum yellow ; abdominal bands blue, 
 that on the second segment greatly dilated 
 on the sides, occupying the whole of the 
 lateral borders pcllucens, sp. n. 
 
RHIXGTA. 51 
 
 6 (3) Abdomen metallic blue, more or less yellow 
 
 towards the base ; scutelluui and thorax 
 of a metallic-blue colour. 
 
 7 (10) Snout reddish yellow ; second abdominal 
 
 segment more or less yellow, third with 
 a dull black or bluish hind border. 
 
 8 (9) Legs entirely pale yellow ; species of 
 
 smaller size' carulescens, Loew. 
 
 9 (8) Legs strongly infuscated ; species of larger 
 
 size \&i\fuscii>es, var. n. 
 
 10 (7) Snout shining blue, like the rest of the 
 body ; only the first abdominal segment 
 yellowish towards the in id die, third with- 
 out dark hind border pycnosoma, sp. n. 
 
 4-j. Rhingia lutea, sp. n. 
 
 $ . Length of body 11 mm. 
 
 A wholly luteous species, distinct from the allied mecyana, 
 Speiser, in having the frons and the snout entirely yellow, and the 
 black hind border of the abdominal segments narrower. 
 
 Head reddish yellow, the sides of the occiput blackish, with dark 
 grey dust : frons shining, clothed with very short dark hairs placed 
 on small dark punctures, and with an ill-defined dusted band before 
 the supra -antennal tubercle, which is rounded, prominent, and 
 bare; face shining, with a reddish middle keel continued on the 
 snout, which is long and dull reddish, without any brown marking; 
 peristoma yellowish, whitish and white-haired behind ; proboscis 
 black, as long as the snout ; antennae orange-coloured, with the 
 basal joints very short and the third longer than broad and some- 
 what pointed at the tip ; arista bare, long, brown, broadly reddish 
 towards the base ; occiput with some erect dark hairs at vertex, 
 but without any fringe on the sides. Thorax reddish, punctate, 
 with very short dark hail's on the punctures ; pleurae with greyish 
 tomentum and almost bare ; a blackish spot on the breast over the 
 hind coxae ; seen from behind the thorax shows in the middle 
 two ill-defined, broad and parallel, whitish stripes. Scutellum very 
 broad, semicircular, yellow, punctate, with short black hairs, the 
 punctures and the hairs being more developed along the hind margin, 
 which therefore appears minutely serrulate ; below in the middle 
 it is clothed with erect soft white pubescence. Squamulae- yel- 
 lowish, with a very long fringe of dark yellowish feathered hairs. 
 Halteres yellowish. Abdomen broad and rounded, less punctate 
 and more glittering than the thorax, the first two segments pale 
 yellowish, the others reddish like the thorax ; first segment with 
 a very small black line behind, i.tit>adiy interrupted in the middle 
 and not reaching the sides ; second segment with n black hind 
 border, which is narrowed but not interrupted in the mi Idle ; third, 
 fourth, and fifth with a slightly broader black hind border. The 
 hair on the abdomen is very short and dark, only on the sides at 
 base longer and yellowish. Venter yellow, with black hind borders 
 on the sides of third and middle of fourth segments. Legs with the 
 
52 SYRPHIDJ. 
 
 coxae entirely pale yellow ; front tarsi with the basal joint showing 
 at the base a very conspicuous but short black stripe. Wings 
 hyaline, with a faint yellowish tinge ; subcostal cell very long, pale 
 yellowish, but there is no distinct stigma ; veins black, yellowish 
 towards the base, the first being yellow throughout its whole 
 length ; third vein strongly bent backwards at the end, and there- 
 fore ending beyond the tip of the wing, the submarginal cell being 
 greatly dilated at the apex. 
 
 Type <$ , a single specimen from Ruwe, Lualaba R., Belgian 
 Congo, circa 11 S., 26 E., ii. 1906 (Dr. A. Yale Massey). 
 
 A single badly-preserved male from Durban seems to belong to 
 this or to a very closely allied species ; it has no black spot on the 
 breast, and the hind borders of the abdominal segments are very 
 narrow and linear. 
 
 46. Rhingia semicserulea, Austen (1893). 
 
 Distinguished by the aeneous, partly caeruleous, thorax, and by 
 the yellow, black-banded abdomen, the band on the second segment 
 not being dilated at the sides. 
 
 The determination is doubtful, because the specimens are not 
 well preserved ; the subcostal cell is distinctly } T ellowish, the legs 
 are infuscated, the thorax, sides, and pleurae are partly dark 
 yellowish, the frons of the female is shining blue, but the antenna! 
 tubercle is yellow in front and black behind. 
 
 A couple from Blantyre, Nyasaland Protectorate, 5. iii. 1910 
 (Dr. J. E. S. Old), the male with the proboscis accidentally pro- 
 truding, measuring 9 mm. in length, while normally the proboscis 
 is not longer than the snout ; an immature female specimen from 
 Zomba, Nyasaland (Dr. H. S. Stannui). The species was origin- 
 ally described from Sierra Leone. 
 
 47. Rhingia pellucens, sp. n. 
 
 cJ $ . Length of body 9 to 10 mm. 
 
 Allied to the preceding, but distinguished by its smaller size and 
 differently coloured thorax and abdomen. 
 
 Head of the male almost entirely occupied by the eyes, which 
 are united along a very long line, as long as 2| times the black 
 vertical triangle, and have the upper facets very large and redder 
 in colour than the others ; eyes of the female with equal facets, 
 parted by a broad frons which is blue, very glittering, with short 
 dark hair, without any tomentum and with the antennal tubercle 
 dark reddish yellow ; face and snout in both sexes and the bare 
 frontal triangle in the male reddish yellow ; peristoma yellow ; 
 antennae orange -coloured, the third joint a little longer than broad, 
 with a long bare } T ellow arista, which is brown towards the tip. 
 Thorax shining blue or aeneous in the middle, clothed with erect 
 pale hairs in the male and with very short ones, inserted on small 
 punctures, in the female ; sides of thorax broadly, and pleurae more 
 
RHrS'GIA. 53 
 
 or less, yellowish, with some metallic reflexions ; sternopleurae and 
 breast with broad black spots. Scutelluni yellow, with metallic- 
 bluish reflexions, punctate, clothed with short dark hairs and 
 with some longer and bristle-like hairs on the hind border. 
 Squamulae yellowish grey, with a long fringe ; halteres yellow. 
 Abdomen shortly oval ; first saginent pale yellow, with a very 
 narrow black hind border, which is broadly interrupted in the 
 middle and does not reach the sides ; second segment pale yellow, 
 with a narrow black hind border, which at the sides becomes blue 
 and dilated, covering the sides broadly and reaching the first seg- 
 ment ; third and fourth segments reddish yellow, glittering, with 
 some faint metallic reflexions and a black hind border, which 
 also becomes blue towards the sides, where, however, it is not 
 
 Fig. 10. Rhingia pellucens. sp. n. <$ . X 3. 
 
 dilated, but only produced to the hind margin of the preceding 
 segment as a narrow line ; the hairs on the base are longer, the 
 others are short and dark in the female, erect and pale in the 
 imle : genitalia of the male reddish yellow, with black spots below, 
 pale-haired. Venter pule yellow towards the base, reddish yellow 
 at apex. Legs entirely of a pale yellow colour, only the tips of 
 the hind tarsi darkened ; the black streak on the front tarsi is 
 distinct. AVings hyaline, with a very faint vellow tinge, more 
 distinct in the subcostal cell ; veins yellowish, darkened at tips, 
 following the same course as in J?. Jutea, 
 
 Type 3 and type $ and a couple of additional specimens from 
 Nuwisi Stream, Nkana, X. Xvasa, 9. iv. 1909 (Dr. J. B. Davey} ; 
 a male and two females from Blantyre, Xyasaland Protectorate, 
 iii.-iv. 1910 (Dr. J. E. 8. Old) ; a male from the AV. shores of 
 Victoria Xvanza. Buddu. Viranda Protectorate. 8.700ft.. ix. 191 J 
 
54 STKPIIIDJE. 
 
 (S. A. Neave*) ; a female from Chirincla Forest, Melsetter District, 
 S. Rhodesia, x. 1905 ( G. A. K. Mars Jin II) ; two males and a female 
 from the same locality, 3,800 ft,, 3-20. iv. 1910, " very common in 
 house" (C. F. M. Swyuncrton). 
 
 48. Bhingia cserulescens, Loew (1858). 
 
 A pretty violaceous or aeneous species, with reddish snout and 
 -wholly metallic, not banded, abdomen, which is more or less broadly 
 yellow towards the base. 
 
 The present species is of the same size as the preceding one, but 
 very different in coloration. The yellow on the base of the 
 abdomen is- very .variable ; some specimens have only the first 
 segment and a median spot on the second segment yellow ; some 
 others have the second segment yellow, except on the sides, and 
 the third with a more or less broad yellow median spot. B.isal 
 black streak on the front tarsi very distinct. 
 
 This species, like the preceding one, in whose company it is 
 often found, seems to be very common. A female from Marsabit, 
 British East Africa, 23. ix. 1911 (11. J. Stordi/) ; Chirinda Forest, 
 S. Rhodesia ( G-. A. K. Marshall and C. P. M. Swynnerton) ; 
 Zomba, Nyasaland (Dr. If. S. Stannug) ; Lualaba River, Belgian 
 Congo, 1910 (Dr. A. Yale Massey) ; a male from Western 
 Ankole, Uganda Protectorate, 4,500-5,000 ft., 12-14. x. 1911 (S. 
 A. Neave). 
 
 Var. fuscipes, var. n. 
 
 c? ? Length of body 11 mm. 
 
 Distinguished from the typical form by its slightly greater si/e, 
 and by having all the femora more or less dark brown or black, with 
 only the apex yellow ; sometimes the hind tibiae also are blackish 
 in the middle and all the tarsi darkened towards the end. 
 
 Type d and iype $ from Chirinda Forest, S. Rhodesia, 3,800 ft., 
 3. iv. 1910 (C. F. M. Swynnertoti) ; a male from N.-E. Rhodesia, 
 near R. Chire, 17. ii. 1909 (Dr. J. B. Davcy); a female from 
 N. Nyasa, Mt, Waller, l.ix. 1909 (Dr. J. B. Davey). 
 
 49. Rhingia pycnosoma, sp. n. 
 
 c? . Length of body 10'5 mm. 
 
 A wholly shining caeruleous species, resembling a Pycnosoma, 
 very distinct from any other on account of its caeruleous frontal 
 triangle, face, and snout. 
 
 This species seems to be closely allied to cyanoprora, Speiser, 
 and pulcherrima, Bezzi, but differs from both in the coloration 
 of the legs, and from the former in the thorax being all cseruleous 
 without yellow markings. R. ccerulea, recently described by me, 
 is perhaps the female of the present species, but has a yellow face 
 and snout, 
 
RHINGIA. GRAPTOMYZA. 65 
 
 Head black, with bluish reflexions, with sparse grey dust on the 
 occiput, some black hairs at the vertex, and whitish hairs on 
 the chin ; frons and face entirely bare ; eyes large, entirely brown, 
 in contact along a line which is double as long as the vertical 
 triangle, with the upper facets much larger than the others ; 
 antennae with the two basal joints blackish, the third yellow-brown, 
 oval, longer than broad, with a long arista, which is yellowish 
 towards the base ; face strongly shining, without any yellow 
 marking ; snout dullish black at the tip, with a dark yellow longi- 
 tudinal stripe on each side ; peristoma entirely blu'sh black. 
 Thorax entirely shining bluish, the humeral and postalar ealli 
 narrowly reddish ; the back is clothed with long erect black hair, 
 the pleura are grey-haired ; scutellum like the thorax, deeply 
 punctate, aeneous on the hind border, and there with some long 
 bristle-like hairs, clothed below with yellowish hair. Squamulse 
 dirty whitish, with a long fringe ; halteres dark yellowish. Abdo- 
 men entirely shining blue, the first segment only being dark reddish 
 in the middle below the scutellum ; second with hind border 
 broadly dull blackish blue towards the middle ; third similar, but 
 less distinct. The hairs on the abdomen are longer at the base 
 and dark externally, those on the back erect and pale, but those 
 on the dark portion of the second segment black. Legs, including 
 the coxae, black, the femora being very narrowly yellow at the 
 extreme tip ; the four anterior tibiae are pale yellow, the hind 
 tibiae darkened as in the middle and reddish at the tips ; fore tarsi 
 less darkened apically, hind tarsi more broadly so ; front tarsi with 
 a distinct basal stripe ; first joint of front and hind tarsi thickened. 
 Wings hyaline, wath a yellowish-brown tinge ; mediastinal cell 
 more yellow ; venation typical, but the third vein not so much bent 
 downwards at the end and therefore the submarginal cell not so 
 much dilated at the tip ; vena spuria not so strongly chitinised as 
 in the other species. 
 
 Type rf , from Obuasi, Ashanti, 27. iv. 1907 (Dr. W. AT. 
 Graham), a single specimen. 
 
 Subfamily II. VOLUCELLIN.E. 
 
 Genus 10. GRAPTOMYZA, WieJemann (1820) 
 
 Of this very peculiar genus five species only are known from the 
 Ethiopian Region one described by Karsch in 1887, two by Bigot 
 in 1882 and 1883, one of which he referred to a new genus called 
 Ptilostylomyia, and two by me in 1908. I have given a table for 
 the distinction of these species in my paper on Fea's SjTphidae ; 
 but I now think that there are only three distinct species, viz. 
 suai'issima, Karsch, very different from the others on account of 
 its blue abdomen ; vittiyera, Bigot, with its six bkck abdominal 
 stripes : and triangvlifera, Bigot, of which my melaniira and 
 
56 SYRPHIDJS. 
 
 pentaspila are synonyms corresponding to the two usual forms of 
 the male and female. To these three species is to be added Paragus 
 signatus. Walker, from Durban, and perhaps also Microdon varius, 
 Walker, from fcierra Leone. From the Oriental Kegion no less than 
 nineteen species have been described by Osten Sacken, Brunetti and 
 de Meijere. The genus seems therefore to be mainly Oriental, but 
 Africa possesses some very interesting species, provided with very 
 peculiar structural characters. All these species seem to mimic the 
 hymenopterous genus Melipona, which they resemble very much 
 in shape, colouring, and structure of the legs ; probably they are 
 scavengers in their habits, as are our species of Volucella. 
 In the collection there are the four following species : 
 
 1 (2) Second and fourth longitudinal veins bearing 
 
 from the base to the middle very numerous 
 and long bristles ; basal joint of middle 
 tarsi in the male not dilated and as long 
 as the four succeeding joints; scutellum 
 with a yellow margin and a broad black 
 depression ; legs with black markings ; 
 wings with three narrow dark bands. . . . triangulifera, Big. 
 
 2 (1) The second vein alone with bristles near 
 
 the base ; species usually of larger size ; 
 wings with broad brown spots or bunds. 
 
 3 (4) Legs usually of a pale yellow colour, with- 
 
 out any black marking; scutellum with 
 a very broad black depression, apparently 
 black with a yellow border; abdomen 
 yellow, with black markings; basal joint 
 of middle tarsi MS long as the others taken 
 together ' xanthopoda, sp. n. 
 
 4 (3) Legs with black markings on the femora 
 
 and tibiae; pcutellum yellow, with a 
 small central black depression ; basal 
 joint of middle tarsi short, and that of 
 the male dilated, only as long as the 
 next joint; abdomen black, with yellow 
 markings. 
 
 5 (6) Scutellum entirely of a reddish colour, the 
 
 median depression alone black ; thorax 
 and abdomen with golden tomentuin and 
 golden hairs aurea, sp. n. 
 
 6 (5) Scutellum yellow, with the basal half 
 
 black ; thorax without golden tomentum 
 
 or golden hairs nigra, sp. n. 
 
 50. Graptomyza triangulifera, Bigot (1882). 
 
 A small species, readily recognised by the fourth longitudinal 
 vein being bristly towards the base and by the peculiar abdominal 
 pattern. 
 
 The male measures 5-6 mm. in length and was described by me 
 as melanura ; the female measures 6-7 mm., and was described by 
 me as pentaspila. I am enabled to substantiate this synonymy 
 
QHAPTOMTZA. 57 
 
 on account of the good preservation of the material collected by 
 Dr. Graham, while the specimens on which I founded these species 
 were badly preserved. Bigot described the arista as bare ; but 
 this is an error, due to the fact that the hairs are easily abraded, 
 like those on the eyes ; in reality, the arista is shortly plumose, as in 
 the other species. 
 
 G. penfaspila corresponds to the female, which is larger and in 
 which the third and fourth abdominal segments have the median 
 black spot divided into two by a narrow yellow line ; G. melanura 
 corresponds to the male, which is smaller and has only a triangular 
 black spot on the third segment, while the fourth is entirely black. 
 The mesopleurae have in both sexes a perpendicular yellow band, 
 attenuated below and in continuation with the sutural band. 
 The bristles on the thorax and scutellum, and the scutellum 
 itself are as in the following species. The four anterior legs, 
 including the front coxae, are entirely pale yellow ; hind legs with 
 black coxae, the femora with the apical half abruptly shining black, 
 the tibiae black, densely clothed with hairs, the tarsi yellow. The 
 first joint of the tarsus of the middle legs of the male is simple, 
 cylindrical, and almost as long as the other joints together. The 
 hind tibiae bear stout black bristles placed in a row along the ex- 
 ternal fore border, which are more developed in the female. In the 
 wings, the bristles on the second vein run from the base to its 
 bifurcation, those on the fourth vein are present only on the portion 
 before the cross- vein dividing the second basal from the discal cell ; 
 but these bristles seem to be also easily abraded. There are on the 
 wings three brown cross-bands; the first very short below the stigma, 
 not passing the second vein ; the second broader, extending beyond 
 the hind cross-vein ; the third smaller, passing the subapical cross- 
 vein. 
 
 Five males and two females from Obuasi, Ashanti, v.-xi. 1907, 
 caught on window or in bush (Dr. W. M. Graham). 
 
 51. Graptomyza xanthopoda, sp. n. 
 
 2 . Length of body 6 mm. 
 
 A small species, closely allied to the preceding one, but distin- 
 guished by having a bare fourth vein, less distinct median abdominal 
 spot, wholly yellow hind legs, and broadly spotted wings. 
 
 Head shining black, the occiput almost without any tomentum ; 
 frons broad, flat, with a keel and a round small fovea on each side 
 in the middle ; the frons is clothed with almost yellowish hairs, 
 which become darker over the antennae, and is black with four 
 subquadrate yellow spots, two near the ocelli and two on the sides 
 of the slightly prominent supra-antennal tubercle, all these four 
 spots being in contact with the eyes : face shining yellow, mode- 
 rately produced, with yellowish hair, and three ill-defined brownish 
 stripes, one in the middle and one on each side ; peristoma yellow, 
 with whitish hair behind ; vertical fringe yellowish ; eyes clothed 
 with short whitish hairs ; antenna? black, the very elongate third 
 
5'8 SYHPHIDJE. 
 
 joint being a little yellowish below near the base, with a long, 
 slv - jy plumose arista; proboscis shining black, with yellowish 
 labella. Thorax quadrate, punctate, black, with indistinct purplish 
 reflexions ; humeri yellow, there is also another smaller yellow 
 spot on the inner side of each humeral callus ; sides of the suture 
 with an abbreviated yellow band ; the postalar calli and a band 
 just before the scutellum also yellow ; pleurae shining black, 
 the propleurse and a vertical band across the mesopleura? yellow ; 
 this band is clothed with long yellowish hair and is attenuated 
 below and dilated above, where it is in contact with the sutural 
 band. The dorsuin of the thorax is clothed with dark and yellow 
 hair, which latter forms a median longitudinal band, which is bifid 
 in front, a broadly interrupted sutural band, and a complete one 
 before the scutellum ; there are also some very long black bristles, 
 a group of shorter ones in front, and four very long ones behind 
 them, and besides a row of short bristles before the scutellum, the 
 external ones being longer and decussate. Scutellum black at the 
 bise, yellow below and on the sides ; the entire middle is occupied 
 by a very broad and deep depression, which is black and grey- 
 dusted in the centre ; the scutellum bears golden-yellow hairs on 
 the sides and along the hind border, and four very long black 
 bristles, the middle ones decussate. Metanotum shining black ; 
 squamuLe whitish, with a yellowish fringe ; halteres white. 
 Abdomen oval, blunt at the end, convex, very strongly punctate ; 
 first segment } T ellow, with a smooth and glittering median depression 
 below the scutellum, the sides produced anteriorly, forming two 
 very prominent tubercles; the succeeding segments are yellow, 
 punctate throughout, with only a linear shining band on the front 
 border of the second segment, before which the border is granulated, 
 and a narrow band on the hind margin of same segment ; the hairs 
 are whitish and erect on the sides, golden yellowish and depressed 
 in the middle, becoming longer on the fourth segment ; there are 
 two lateral black stripes, one on each side, running from the fore 
 border of the second to the hind border of the fourth segment ; in 
 the middle of the second, third, and fourth segments there are two 
 brownish indistinct divergent spots, forming the usual triangle. 
 The venter is greatly sunken, surrounded by a raised margin, 
 shining yellow, black at the end. Legs, including the coxse, entirely 
 yellow, the hind pair strong and thickened, with short but dense 
 yellow hairs ; tarsi darkened at end ; hind femora with the apical 
 half a little reddish ; hind tibiae without stout black bristles 
 externally ; basal joint of middle tarsi long and thin, as long as the 
 other joints together. Wings with a yellowish-grey tinge and the 
 usual venation, with no trace of a vena spuria ; the stumps of 
 veins at the lower angles of the first posterior and discal cells very 
 long, longer than in the preceding species ; stigma brown ; sub- 
 costal cell yellow, brown at the end ; the first oblique brown band 
 begins at the stigma and ends at the fourth vein near the small 
 cross-vein ; the second broader band begins at the end of the first 
 vein and ends broadly in the first posterior cell, where it fuses 
 
OBAPTOMYZA. 
 
 59 
 
 with a brown band on the subapical cross-vein ; hind cross-vein 
 with a broad spot ; end of the anal cell with an ill-defined brown 
 spot. rb 
 
 Type 5 . a single specimen from Obuasi, Ashanti, 23. vi. 1907 
 (Dr. W. M. Graham). 
 
 52. Graptomyza aurea, sp. n. 
 
 cT $ . Length of body 8 to 9 mm. 
 
 Allied to the preceding species, but larger and distinguished by 
 the black facial stripes, the black abdomen clothed at the end with 
 golden hairs, and by the shorter basal joint of the middle tarsi, 
 which besides is dilated in the male. 
 
 Head as in G. xanthopoda, but a little more produced ; frons of 
 equal width in both sexes, with the two foveaj merged into a single 
 
 Fig. 11. Graptomyza aurea, sp. n. <5 X 5. 
 
 broad depression, and the two lateral yellow spots usually fused 
 together along the eyes; the three facial stripes are well marked, 
 black, but not broad ; hairs on eyes longer ; antennae as in the pre- 
 ceding species, but the hairs on the arista a little longer. Thorax 
 with the colour and hairs as in G. xantliopocla. but the golden hairs 
 more abundant and longer, chiefly towards the hind border; 
 bristles similar. Scutellum very different, with a smaller and 
 deeper median depression, which is dark and dusted in the middle ; 
 the golden hairs are longer ; the four bristles as in the preceding 
 species, but the apical ones are distant and not decussate. Halteres 
 and metanotum as in G. xantJiopoda ; squamulae dark, with golden 
 fringe. Abdomen of the same shape and punctate as in the pre- 
 ceding species, but towards the end clothed with longer and denser 
 golden hair ; first segment, black, with only the middle depression 
 and the tips of the lateral prominences yellow ; second black, with 
 a median vcllow hind border, abbreviated laterally and united with 
 
60 SYRPHID^!. 
 
 two yellow stripes, thus forming a perfectly quadrate black median 
 spot ; the other segments black, the third bearing sometimes a 
 pattern like that of the second, or with a more or less broad yellow 
 spot ; venter black, yellow towards the middle at the base ; male 
 genitalia black. The four front legs are yellow, but the coxae and 
 femora, except the ends, are black, the front femora besides are 
 yellow on the anterior surface ; middle tarsi very characteristic, 
 the basal joint being in the male disciform, nearly circular, and ii 
 the female not dilated, but much shorter than in the females c ' 
 the two preceding species ; hind legs strong and thick, black, the 
 femora yellow at each end, the tibise unarmed externally, the tarsi 
 yellow ; the hairs are dense and short ; first joint of front tarsi with a 
 black basal stripe (as in Jibing i a), which is often indistinct. Wings 
 with a faint brownish -yellow tinge; stigma darkened at the base; 
 th-jre is a single broad middle band, beginning at the fore border 
 before the end of the first vein and ending towards the apex of the 
 discal cell ; there is besides sometimes a trace of an indistinct 
 short second band along the subapical cross-vein. 
 
 Type $ , another specimen, and type from Oshagbo, S. Nigeria. 
 x. 1910 (Dr. T. F. G. Mayer) ; a female from Ilesha, S. Nigeria, 
 23. vii. 1910 (Cnpf. L. E. Humfrn/); two females from Obuasi, 
 Ashanti, 7-30. vii. 1907 (Dr. W. M. Graham}. 
 
 53. Graptomyza nigra, sp. n. 
 
 d 1 $ . Length of body 8 mm. 
 
 Near the preceding species, but darker, with broader facial 
 stripes, the base of the scutellum black, and the abdomen not 
 golden. 
 
 Head as in G. aurect ; the four frontal yellow spots are very 
 small and separated ; the median facial stripe is shining black and 
 very broad, the face therefore appearing to be bljick with two 
 yellow stripes ; third antennal joint entirely black, with a yellow 
 and shortly plumose arista ; eyes clothed with long whitish hairs. 
 Thorax as in the preceding species, but with shorter pubescence, 
 which is grey and not golden ; the yellow markings are less 
 developed, there is no spot inside the humeral callus, the sutural 
 streak is smaller, and the mesopleural stripe is very narrow; 
 scutellum as in G. aurea, but shining black on the basal half. 
 Squamulse whitish and with a white fringe. Abdomen as in the 
 preceding species, but the pubescence is grey, mixed with black 
 hairs towards the end of the fourth segment ; it is black, with only 
 two parallel narrow yellow stripes running from the fore border of 
 the second segment to the middle of the third ; there is besides a 
 yellow marginal stripe, which is broader on the sides of the second 
 segment ; venter black ; male genitalia black. Legs as in G. aurea, 
 but the hind femora only with the extreme base narrowly yellow ; 
 the knees are also more narrowly yellow ; first joint of middle tarsi 
 of male distinctly, but less, dilated ; the black hairs are more 
 abundant. Wings with the stigma tic field vi'llow, black towards 
 
GRAPTOMrZA. PROTYLOCEHA. 61 
 
 the base ; there is in the marginal cell a dark spot below the stigma 
 and connected with it ; a broad band, as in the preceding species, 
 united with the less distinct pre-apical band in the first posterior 
 cell. 
 
 Type <$ and type $ from the Uganda Protectorate, Mabira 
 Forest, Chagwe, 3,500-3,800 ft., 16-25. vii. 1911 (S. A. Neave}. 
 
 Subfamily III. MERODONTIN.E. 
 
 Genus 11. PROTYLOCERA, Bezzi (1912). 
 
 This name was introduced by me to replace Stenaspis (Senaspig) t 
 which is preoccupied in Coleoptera ; I had previously adopted the 
 name Dolichomerus, which, however, having for type crassus, Fabr., 
 is completely identical with Phytomia (31eyaspis). All the species 
 of the present genus have a common facies and are easy to recognise ; 
 but there are some variations, and forms with open marginal cell 
 or with pubescent eyes are perhaps to be included here. The genus 
 is eminently characteristic of the Ethiopian fauna. 
 
 We have in the collection the following species : 
 
 1 (10) Wings either entirely blackened, or with 
 
 a broad black median band. 
 
 2 (5) Wings uniformly tinged with purplish 
 
 brown, except on the hind border, 
 which is clear. 
 
 3 (4) Face, antennae, and legs red; thorax 
 
 black, with a short velvety -black 
 stripe on each side of the suture ; 
 scutelluni dark reddish dibaphus, Walk. 
 
 4 (3) Face, antennas, and legs black, dor sum of 
 
 thorax covered with a light yellowish- 
 grey pollen ; scutelhmi yellow elliotii, Aust. 
 
 6 (2) Wings hyaline, with a median brown 
 band or spot. 
 
 6 (7) Abdomen entirely black, with grey mark- 
 
 ings; wings yellowish on the basal half, eesacus, Walk. 
 
 7 (6) Abdomen entirely yellow or black with 
 
 reddish end. 
 
 8 (9) Abdomen entirely yellow; wings hyaline 
 
 with a distinct median black 'spot ; 
 
 scutelluni blackened xantJiorrkcea, Bezzi. 
 
 9 (8) Abdomen black, with the last segments 
 
 reddish yellow ; wing-s blackened at 
 the base and along the fore border; 
 scutelluni light yellow k&morrhoa } Gerat. 
 
 10 (1) Wings yellowish hyaline, without dark 
 
 band or spots. 
 
 11 (12) Face and irons black; scutelluni light 
 
 yellow; squamuloe yellow; hind femora 
 
 simple nigrita, Big. 
 
62 SYRPTITDJE. 
 
 12 (11) Face and frons yellow; scutellum black- 
 ish ; squainuLe black, with a white 
 fringe ; hind femora at the base with a 
 conspicuous conical tubercle apophysata, sp. n. 
 
 54. Protylocera dibaphus, Walker (1849). 
 
 A handsome species, easily recognisable on account of its red 
 face, antennae, and legs, and the broadly interrupted velvety-black 
 band on the thoracic suture. 
 
 The present species was described as ISristalomyia rufonasuta 
 by Bigot in 1891, and more recently as Stenaspis gypseisquama 
 by Dr. Speiser ; the identity with Walker's Xylota dibaphus is 
 established after comparison by Mr. Austen with the type in the 
 British Museum. 
 
 This species seems to have a wide range in Tropical Africa, from 
 the East to the West Coast. In the present collection there are 
 three females from Obuasi, Ashanti, iv.-vii. 1907, "sucking a cut 
 plantain stem" (Dr. W. M. Graham); a male from Uganda 
 Protectorate, between Jinja and Busia or Mbwago's, E. Busoga, 
 3,800-4,000 ft., 18. vii.-l. viii. 1911 (S. A. Neave). 
 
 55. Protylocera elliotii, Austen (1909). 
 
 Very distinct, owing to the densely yellow pollinose dorsum of 
 the thorax and scutellum, and the purplish-brown wings. 
 
 Originally described from Ruwenzori Mountains, this species is 
 also widely spread in Tropical Africa. According to the description, 
 Xylota purpurea, Walker, seems to be very like this insect. 
 
 A female from British East Africa, Ilala, Mamma's I)ist., 
 14 m.E.of Mumia's, 4,500 ft., 18-21. vi. 1911 (S. A. Neave), and 
 a male from Yala River, southern edge of Kakumega Forest, 
 4,800-5,300 ft., 21-28. v. 1911 (S. A. Neave). 
 
 56. Protylocera sesacus, Walker (1849). 
 
 Characterised by the yellowish scutellum and hind portion of the 
 thorax, the black abdomen, and by the wings being yellowish 
 basally and having a broad median brown spot. 
 
 This species is very common in West Africa, but in the collection 
 there is only a single female specimen from Obuasi, Ashanti, 8. viii. 
 1906, " caught on leaf in coita " (Dr. W. M. Graham). 
 
 57. Protylocera xanthorrhoea, Bezzi. 
 
 $ . Length of body 13 mm. 
 
 Near the preceding, but distinguished by the entirely yellow 
 abdomen and different pattern of the wings. 
 
 Head black, covered with dense grey pollen, shining black on 
 the ocelli ; lunula reddish ; facial tubercle broad and round, grey 
 
PEOTYLOCERA. 63 
 
 pollinose ; lower orbits and edges of buecal cavity reddish ; frons 
 clothed with hairs, which on the basal half are erect, shorter, and 
 more white, and on the front half are longer, grey, and directed 
 forwards; face with grey hairs on the sides; antennal tubercle promi- 
 nent ; antennae short, black, with yellow arista ; peristoma narrow, 
 horizontal, not descending; eyes bare, brown, witli the usual rounded 
 pale spots ; hind orbits above with long grey hairs and very short 
 black bristle-like hairs. Thorax black, clothed on the pleurae with 
 long grey hairs and on the back with shorter ones, but on two 
 spots before the suture and on two broader ones behind there are 
 short black hairs. Scutelhmi yellow, darkened above, with black 
 hairs on the middle and pale hairs on the hind margin. Squarnulae 
 whitish yellow, with a white fringe ; halteres whitish ; the subalar 
 callosity yellowish. Abdomen yellow ; first segment blaek ; second 
 with a narrow black basal band, which in the middle is dilated into 
 a triangle ; hairs golden and short, those on the base of the first 
 and second segments are whitish grey, and on the second and third 
 segments there is in the middle of the hind border a triangular 
 area clothed with black hairs, and a similar one is to be observed 
 on the fourth segment also. Legs dark reddish brown, with white 
 hairs, the hind tibiae with a black fringe on the inner side ; hind 
 femora rather thick, with the two usual subapical callosities beneath 
 and with a black spot externally at the base. Wings tvpical, with 
 very shortly stalked marginal cell and with a triangular appendi- 
 culated kink in the third vein ; they are greyish hyaline, with a 
 broad brown median spot very like that of cesacus, but almost 
 interrupted across the second basal and discal cells ; fifth vein 
 bordered with dark towards the base ; end of the marginal cell 
 infuscated ; basal half of the wings not at all yellow. 
 
 Type $ , a single specimen from British East Africa, Voi, June- 
 July ((?. S. Betton). The species has already been diagnosed by 
 me'in Ann. Mus. Civ. Genova, (3) v. 1912, p. 416 
 
 58. Protylocera haemorrhoa, Gerst acker (1871). 
 
 Easily distinguished by the pale yellow scutellum, reddish end 
 of the black abdomen, and brown median band on the wings 
 extending to the base along the fore border. 
 
 A female specimen from Nyasaland, 5 m. S.-E. of Rifu, 16-17. 
 ix. 1910 (S. A. Neave) ; a male from Beira, Portuguese E. Africa 
 (P. A. Sheppard)\ a female from N.-E. Khodesia, Upper Luano-wa 
 Valley, 1. viii. 1910 (S. A. Neave). 
 
 59. Protylocera nigrita. Bigot (1859). 
 
 Very distinct from any other species, being entirely black, with 
 pale yellow scutellum and squamulae, and with yellowish wings 
 without any brown marking. 
 
 In this species the marginal cell has a longer stalk than in the 
 typical species, and therefore the subcostal cell is a little longer 
 
64 STRPHIDJE. 
 
 than the marginal one ; but the shape of the head, the spots on 
 the eyes, and the shape of the kink in the third vein are quite 
 typical. 
 
 A single female specimen from Madagascar, without further 
 locality. 
 
 60. Protylocera apophysata, sp. n. 
 
 d 1 . Length of body 20 mm. 
 
 Closely allied to the preceding species, but distinguished by the 
 yellow face and antennae, bkck scutellum, and squamulae, and by 
 the conical tubercle at the base of the hind femora. 
 
 This species is doubtfully referred to this genus, with which it 
 agrees in general facies and the shape of the head, but from which 
 it differs in having unspotted eyes, a long-stalked marginal cell, 
 and a rounded, not appendiculated, kink in the third vein. 
 
 Head yellow, with grey dust on the occiput, blackish on the 
 vertical triangle ; eyes touching along a short line, which is shorter 
 than the vertical triangle, bare, with equal small facets, without 
 any trace of the rounded pale spots characteristic of the genus ; 
 
 Fig. 12. Protylocera apophysata, sp. n. 
 Left hind leg from inner sice. X 6. 
 
 antenna! tubercle very strongly prominent, clothed like the frontal 
 triangle with golden -yellow hairs ; face deeply excavated below the 
 antennae, its middle tubercle round but flattened, almost united 
 with the epistoma, which is prominent ; peristoma narrow, not 
 produced ; sides of the face with golden -yellow hair ; hair on the 
 vertex brown ; antennae short, entirely yellow, the third joint 
 rounded, with a dark yellowish arista. Thorax dull black, on the 
 sides with a dark reddish band running from the humeri to the 
 scutellum ; hairs dark on the middle, golden reddish on the sides 
 and behind ; pleurae black and with black hairs, with reddish hairs 
 only on the upper border ; propleurae red. Scutellum rectangular, 
 blackish brown, with dark reddish hair, strongly margined behind; 
 squamulae black, with a white fringe ; halteres pale yellow ; subalar 
 callosity cochineal-red. Abdomen entirely dull black, with short 
 black hair, at the base only with grey hair ; the fourth segment 
 more narrow than usual, cylindrical, dark reddish ; the genitalia of 
 
PROTYLOCEHA. PIIYTOMIA. l>") 
 
 very great size, swollen, rounded, dark reddish, asymmetrical, pro- 
 longed to the middle of the venter below, and there with a strong, 
 cylindrical, projecting piece. Legs short and strong, blackish 
 brown, the four anterior femora more reddish; front coxae very long 
 and broad, yellow, grey-dusted, and the piece before them also yellow, 
 yellowish pilose, with a row of six short but strong black spines ; 
 all the legs are clothed with short black hair ; hind femora thick 
 and short, almost arcuate, at the base below with a strong and 
 black conical tubercle, which is blunt and clothed with short 
 black hairs ; hind tibise short and broad, bent at the base ; tarsi 
 broad and flattened ; claw r s red, with black tips. Wings coloured 
 as in niyrita ; stalk of the marginal cell rather long, the subcostal 
 cell, therefore, longer than the marginal ; kink in the third vein 
 deep, but rounded and not appendiculated ; discal cell with a 
 long stump at the lower angle; anal cell dilated towards the 
 middle. 
 
 Type c? , a single old and damaged specimen, from Betsileo, 
 Madagascar (Itev. D. Coica.n). 
 
 Genus 12. PHYTOMIA, Guerin (1833). 
 
 The very numerous Ethiopian species can be divided into three 
 groups. The first, or bulletin -group, resembling the Oriental 
 crassa-gronp, contains the more striking and characteristic African 
 species. The second, or natalensis-group, recalling the Oriental 
 sonata-group, embraces the yellow-and-black banded species, the 
 new species fucoides forming a link with the next group. The 
 third, or incisa-group, very like the cosmopolitan Eristalis tenax in 
 general appearance, seems to be peculiar to the Ethiopian Region, 
 and can be divided into two smaller groups, viz. (1) the species 
 with broad black face and black peristoma, and (2) the species 
 with narrower yellowish face and usually yellow peristoma. These 
 last species approach the genus Simoide* ; vi/lipes, Loew, was 
 described as a member of the latter genus, but I place it here on 
 account of its wings being without any pubescence. The male is 
 yet unknown. 
 
 It seems that many species of Ethiopian Pliytomia, if not all, 
 have the eyes adorned with dark horizontal bands, which are 
 however, much less distinct than in Eristalodes, in which, besides, 
 the bands are perpendicular. 
 
 The very numerous species in the collection can be distinguished 
 as follows : 
 
 1 (20) Body short and broad, thick, very different 
 
 from that of Eristalis tenax both in shape 
 and coloration. 
 
 2 (15) Abdomen with more or less distinct bullm 
 
 (i.e. rounded prominent tubercles^. 
 
 3 ( 14) Arista plumose ; abdominal bulhe well de- 
 
 veloped, very prominent. 
 
66 
 
 4 (11) Wings with a sharply-defined, broad black 
 
 pattern ; third and fourth abdominal 
 segments each with three prominent bullae. 
 
 5 (8) Body and legs entirely black, even the 
 
 abdominal bullse wholly black ; wings 
 with the basal half entirely blackened 
 and with a single band in addition. 
 
 6 (7) Third and fourth abdominal segments with 
 
 the middle bulla encircled by a velvety- 
 black patch, the laleral bulla3 bare and 
 shining, distinct 5 sides of the abdomen 
 with black hairs bullata, Loew. 
 
 7 (0) Third and fourth segments on each side of 
 
 the middle buila with a broad patch of 
 golden pubescence, which entirely covers 
 the lateral bullre, which are therefore not 
 visible ; sides of the last three segments 
 with a fringe of golden hairs attrigera, sp. n. 
 
 8 (5) Body and legs mostly red or yellow ; abdo- 
 
 minal bullte red or yellow ; wings almost 
 entirely hyaline at the base, "with two 
 black baud's on the middle. 
 
 9 (10) Tibiae and tarsi black ; wings rather dark- 
 
 ened at the base ; bulla on the second 
 abdominal segment red, black only towards 
 the fore border Jcroeleri, sp. n. 
 
 10 (9) Tibiaa and tarsi red ; wings entirely hyaline 
 
 at the base ; bulla on second segment 
 
 entirely black neavei, sp. n. 
 
 11 (4) Wings either without any pattern or with 
 
 an ill-defined one in the middle; third 
 and fourth segments each with only a 
 middle bulla. 
 
 12 (13) Wings vitreous, without any pubescence 
 
 towards the middle, with a small, more 
 or less distinct dark band extending to 
 the praefurca ; squamulae with a whitish 
 fringe ; second abdominal segment with a 
 broad yellow barifl ; face without a. dis- 
 tinct lateral keel below, with the middle 
 tubercle not very prominent and grey- 
 dusted bultigera, Aust. 
 
 13 (12) Wings broadly pubescent to the subapical 
 
 and postical cross-veins, in the middle 
 vrith a broad brown spot extending to the 
 middle cross-vein ; squamulas with a dark 
 fringe ; face below with an oblique pro- 
 minent keel on each side and with the 
 tubercle bare, black, very shining pubipennis, sp. n. 
 
 14 (3) Arista bare ; abdominal bullfle but little 
 
 prominent, indistinct ; thorax on the back 
 with dark and grey transverse bauds ; 
 wings hyaline, unspotted erratica, Bezzi. 
 
 15 (2) Abdomen' without distinct bullas. 
 
 1(3 (19) Thorax and abdomen with bright yellow 
 trans verse bands ; bind femora half yellow 
 and half black. 
 
PHTTOiTIA. 67 
 
 17 (18) Thorax with a yellow band just before 
 
 the scutellura ; yellow abdominal bands 
 broader, well developed on the third and 
 fourth segments also curt a, Loew. 
 
 18 (17) Thorax without such a band ; yellow bauds 
 
 narrower, those on the third and fourth 
 segments usually reduced to a small 
 lateral spot nataknsis, Macq. 
 
 19 (16) Thorax and abdomen without such bands ; 
 
 hind femora black, dark yellowish only 
 
 at the extreme base fucoidcs, sp. n. 
 
 20 (1) Body elongate, not incrassate, very like 
 
 that of E. tenax in shape and coloration. 
 
 21 (30) Frons clothed with long and intricate 
 
 hairs; thorax covered with long hairs 
 on the back ; peristoma black; face broad 
 and usually entirely black. 
 
 22 (27) Hind tarsi not shortened, of usual length ; 
 
 face entirely black, very broad ; squaniula) 
 blackish. 
 
 23 (26) Second abdominal segment simple, of the 
 
 usual shape. 
 
 24 (25) Abdomen at the base with yellow bands . . fronto, Loew. 
 
 25 (24) Abdomen entirely black at the base var. met as, var. n. 
 
 26 (23) Second abdominal segment of a very pecu- 
 
 liar (perhaps abnormal) shape ephippium, sp. n. 
 
 27 (22) Hind tarsi much shortened ; face narrower, 
 
 yellowish, with a median black stripe; 
 squamulie whitish. 
 
 28 (29) Hind femora entirely black villipes, Loew. 
 
 29 (28) Hind femora in greater part yellow \ar.femoraHs, 
 
 30 (21 ) Frons clothed with short and equal hairs ; [var. 11. 
 
 thorax with short hairs; peristonaa yellow; 
 face proportionally narrow, yellow, black- 
 striped ; squamulae whitish \ incisa, Wied. 
 
 61. Phytomia (Megaspis) bullata, Loew (1858). 
 
 An entirely black species, very distinct owing to the numerous 
 black abdominal bulke and the extended black pattern of the 
 wings. 
 
 This characteristic species, which is not unlike the Tabanid 
 Tfiaumastocera akicct, Griinbg., was originally described from 
 Caffraria, and subsequently recorded from Kihmandjaro by Dr. 
 Speiser. Loew compares the species with Ph. crassa, Fabr., in 
 which, however, the legs are very different ; especially as regards 
 the coloration of the legs, there is greater resemblance to the 
 Oriental Ph. chrysopyga, Wied. Speiser, in 1910, recorded the 
 male, which was previously unknown, but did not describe it. 
 
 Two females from British East Africa, one from Mt. Kenia, 
 W. side, Meru-Xyeri Road, 6,500 ft., 22. ii. 1911, and the other 
 fromS.E. slopes of Kenia, 6,000-7,000 ft., 3-12. ii. 1911 (S. A. 
 Neave). 
 
 '2 
 
68 STBPHID-S. 
 
 62. Phytomia aurigera, sp. n. 
 
 c? . Length of body 16 mm. 
 
 A handsome species, very like the preceding, but easily distin- 
 guishable owing to the presence of four broad spots of golden 
 tomentum near the end of the abdomen, which also bears a golden 
 fringe on the sides. 
 
 I originally believed that this species was the undescribed male 
 of Ph. bullata, but after correspondence with Dr. Speiser and 
 Prof. Sjostedt, I have come to the conclusion that this cannot be 
 so. With reference to the males of Ph. bullata in the Stockholm 
 Museum, Prof. Sjostedt wrote : "there are no large spots of golden 
 tomentum on the posterior segments ; isolated yellow hairs are 
 
 Fig. 18. Phytomia aurigera, sp. n. (3* . X 3. 
 
 certainly present here as elsewhere, but there are no definite spots." 
 I therefore describe the species as new, but it seems singular that 
 in the collection there are only 5 $ of bullata and only tf c? of 
 aurigera, while the localities of both are not far apart. 
 
 In the nearly allied Oriental Ph. chrysopyga, Wied., both sexes 
 have a gilded abdomen, therefore it is perhaps probable that the 
 female of aurigera also possesses golden patches on the abdomen. 
 
 Head and its appendages exactly as in bullata ; the antenna? 
 are even smaller, the third joint being almost circular; the eyes 
 are in contact for a very long distance, which is more than double 
 the length of the vertical triangle ; the facets of the upper half 
 of the eyes aro of a reddish colour, and much larger than the 
 inferior ones, which are also dark-coloured and show three hori- 
 zontal dark bands (in the female of bti'/lnfa at least four such 
 
PHYTOMIA. 69 
 
 bands are visible) ; the frontal triangle is reduced to the wrinkled 
 supra -antennal area; the eight small silvery dots on the jowls near 
 the eyes, four on each side, are quite distinct. Thorax and scu- 
 tellum as in bv.Uata, but the pleura showing traces of scanty 
 golden tomentum ; squamulae black and black-fringed ; halteres 
 dark brown. Abdomen, as regards shape and bullae, the same as 
 in lull at a ; the second segment is covered on the sides with a 
 light, silvery, shining tomentum ; the third and fourth show in the 
 middle, on each side of the median bulla, w r hich appeal's as though 
 encircled by a velvety-black border, a large patch of dense golden 
 tomentum; the lateral bulla? seem to be less prominent and are 
 p.irtly hidden below the golden tomentum ; the sides of the second, 
 third, and fourth segments are also fringed with rather long golden 
 liiirs; the velvety-black border around the middle tubercle on the 
 second segment is very broad. Genitalia shining black and black- 
 haired ; venter shining black, with sparse but long yellow hairs. 
 Legs as in bullata, but the femora scantily clothed with golden 
 pollen. Wings with precisely the same pattern as in bullata, 
 but the black band covering the middle cross-vein is distinctly 
 narrower. 
 
 Type <S , a single specimen from the Uganda Protectorate, Toro 
 Forest, S.E. Buddu, 3,800 ft., 26-30. ix. 1911 (S. A. Neave}. 
 
 63. Phytomia kroeberi, Bezzi. 
 
 2 Length of the body 15 mm. 
 
 A very handsome species allied to the two preceding, but distin- 
 guished by the predominant red colour of the head, abdomen, 
 and femora and by the wings being almost hyaline basally, and 
 having two abbreviated black binds in the middle. A short 
 diagnosis of this species has already been given by rne (Ann. Mus. 
 Civ. Geneva, (3) v. 1912, p. 423). 
 
 Head reddish yellow, the occiput towards its middle and the 
 frons above dull blackish ; fruns almost bare, with scanty whitish 
 
 Fig. 14. Pliytomia 'kroeberi, Bezzi. 
 Wing of 9 . X 6. 
 
 pollen, the wrinkled area above the antennae dark red ; face broad, 
 light yellow, deeply excavated below the antennae where it 
 is whitish pollinose ; facial tubercle flattened, expanded on the 
 sides, not distinct from the epistoma ; peristoma broad, but not 
 
70 
 
 descending 1 , entirely reddish ; face bare, with only short and sparse 
 incumbent white hairs ; antennae very short and small, pale yellow- 
 ish, the two basal joints darker; arista wanting, but probably 
 short plumose at the base ; eyes bare, small, with four indistinct 
 horizontal dark bands; proboscis black; posterior orbits towards 
 the middle silvery shining; face without distinct oblique ridges 
 below. Thorax dull black on the back, clothed w T ith very short 
 black hairs, appearing bare ; a lateral stripe connecting the humeri 
 with the scutellum is dark red; pleurae entirely reddish yellow, 
 with rather long and dense golden or reddish hairs ; subalar callosity 
 dark cochineal-red ; in front of the scutellum there is a broad dark 
 red spot. Scutellum dark red, almost bare, rectangular, margined 
 behind; metanotum reddish yellow; squamulas black and black- 
 fringed ; halteres dark yellow, with brown knobs. Abdomen 
 almost as bare as the thorax, but fringed on the sides with short 
 golden -yellow hairs ; first segment entirely yellowish red ; second 
 reddish, darkened on the sides towards the hind margin, shining on 
 the sides and dull in the middle, where there is a large rounded 
 prominent tubercle, which is dull velvety black on the fore two- 
 thirds and shining red on the hind third ; third segment reddish, 
 strongly shining on the sides, where it is margined with black, dull 
 and dark in the middle, with three reddish shining bullae, and in 
 addition two shining lunate swellings on the hind margin, making 
 in all five bullaa on this segment alone ; fourth segment with three 
 bullae, and margined with black ; fifth almost entirely shining 
 black. Venter yellow, dark grey in the middle, clothed with sparse 
 yellowish hair. CoxaB and femora red, the latter black at the 
 tips ; tibia3 black, broadly white at the base, silvery shining, at 
 any rate in the case of the first two pairs ; tarsi entirely black ; 
 the legs are shining, almost bare. Wings hyaline, without any 
 pubescence ; the extreme base is blackish, from which a small 
 infuscation passes to the basal cells, the first being entirely in- 
 fuscated ; the subcostal cell in its entirety and the extreme tip of 
 the submarginal cell are blackened, forming a narrow black fore 
 border ; of the two middle cross-bands, the first runs obliquely to 
 the end of the cross-vein closing the second basal cell, the second 
 includes the middle cross-vein, ending at the fourth longitudinal 
 vein ; kink in the third vein appendiculate ; lower angle of the 
 discal cell without an appendix. 
 
 Type $ , a single specimen from German East Africa, Usambara, 
 Nguelo (Rolle). 
 
 I have in my own collection a second specimen from the same 
 locality, which w r as presented to me \)y Herr Krober, of Hamburg, 
 in whose honour the species is named. 
 
 64. Phytomia neavei, sp. n. 
 
 Very like the preceding, but smaller, with entirely red legs and 
 differently coloured abdomen and wings ; perhaps only a variety of 
 Ihe foregoing. 
 
PKYTOMIA. 71 
 
 Head as in the preceding species, but the yellowish pollen on the 
 middle of the frons more abundant; peristoma about half as broad; 
 third antennal joint darker, almost blackish ; arista yellow, long 
 plumose near the base. Thorax, scutellum, and squarnula? exactly 
 as in kroelcri. Second abdominal segment yellow, dull in the 
 middle, bearing two broad rounded shining yellow spots, one on 
 each side; the bulla is entirely black and dull, with only a small 
 shining area behind; third and fourth segments as in fcroeberi, but 
 darker and dull in the middle, clothed with distinct golden hairs 
 and with the sides broadly black. Legs entirely red, narrowly 
 black on the knees only; white parts of tibiae less conspicuous; the 
 front tarsi alone are black, and are also very short, as in the 
 piv-.-i'ding species. Wings as in the foregoing species, but almost 
 entirely hyaline at the base ; the two black bands are less dark and 
 somewhat interrupted. 
 
 Ti/pe , a single specimen from the Uganda Protectorate, 
 Entebbe, 1-11. ir. 1911 {8. A. Neave}> 
 
 65. Phytomia (Megaspis) bulligeraj Austen (1909). 
 
 Very distinct from all the foregoing species, owing to the presence 
 of but a single bulla on the third anrl fourth abdominal segments, 
 and owing to the wings being hyaline, with only a short and legs 
 conspicuous brown band below the stigma. 
 
 This species, besides occurring in West Africa, seems to be fairlv 
 common in the mountains of English and German East Africa ; 
 in the present collection there is a single male specimen from the 
 r^nida Protectorate, Mount Kokanjero, S.-W. of Elgon, 6,400 ft., 
 7-8. ix. 1911 (8. A. Ncavc). 
 
 66. Phytomia pubipennis, ap. n. 
 
 $ . Length of the body 12 to 13 mm. 
 
 Closely allied to the preceding, but distinguished by its black 
 abdomen and especially by its pubescent wings an exceptional 
 and aberrant character in the present genus. 
 
 Head entirely black ; frons clothed with dense and moderately 
 long reddish hairs, except on the supra -antennal area which is broad 
 and high, shining black, with a few very deep punctures, and in 
 the centre a distinct smooth line, divided by a median furrow ; 
 face broad and short, deeply excavated below the antennae and 
 there grey pollinose, bearing on the sides very short grey hairs, 
 under which the shining black ground-colour is clearly visible ; the 
 facial tubercle is perfectly circular, well developed, but not very 
 prominent, bare, and shining black ; from the lower border of the 
 tubercle there start two sharp prominent keels, one on each side, 
 which pass obliquely upwards to the eyes ; jowls rather broad, 
 sinning black ; eyes adorned in the middle with two brown hori- 
 zontal bands, from the posterior extremities of which is emitted, above 
 
72 SYKPIIIDJE. 
 
 and below, an oblique band running to the superior and inferior 
 corners of the eyes; proboscis black; antennae short, black, brownish 
 towards the base ; third joint oval ; arista long, yellowish, feathered 
 with long hairs. Thorax black, covered with dense and short 
 reddish hairs ; the ground-colour is deep black behind the suture 
 and grey in front of it, and consequently the thorax viewed from 
 behind appears to be banded; pleurae grey pollinose, the hairs 
 becoming paler below. Scutellum brown, clothed with hairs like 
 those on the main portion of the dorsmn of the thorax, reddish 
 tomentose on the hind border and below. Squamulae blackish, 
 Avith a dark fringe ; halteres dirty yellow. Abdomen entirely 
 blackish brown, somewhat dark reddish on the sides of the second 
 and on the fourth segment ; the bullae are black, disposed as in 
 In Hig era, the largest and most prominent bulla being that on the 
 second segment ; the latter also exhibits a basal band of short 
 yellowish hairs, which is broader towards the sides; hairs on the 
 following segments more golden. Venter black. Legs black, the 
 tibiae whitish at the base, those of the hind pair more narrowly ; 
 hair short and dense, mainly black on the upper side of femora and 
 yellow on the tibiae, which are brown in the case of the two anterior 
 pairs ; hind tibiae broad, on the inside with a black, on the outside 
 with a yellow fringe ; all the tarsi red. those of the first pair very 
 short and broad. Wings appearing rather dark on account of the 
 short and dense pubescence, which covers all the surface from the 
 fore border to the line formed by the subapical. postical cross-vein 
 and seventh vein ; the hind border is therefore narrowly hyaline, 
 but in the axillary cell there is a broad spot of pubescence ; alula 
 also pubescent ; the extreme base of the wings is blackened ; there 
 is also a broad dark median band running from the stigma to the 
 end of the second basal cell ; this band is darker towards the small 
 cross-vein ; kink in the third vein deep, angular, with only the 
 rudiment of an appendix ; lower angle of the discal cell with a 
 long appendix. 
 
 Type $ , a single specimen from the Uganda Protectorate. Daro or 
 Durro Forest, Toro, 4,000-4,500 ft., 25-29. x. 1911 (8. A. Neave). 
 There is also an aberrant female from Obuasi, Ashanti, W. Africa, 
 2. vii. 1907, " caught on flower " (Dr. W. M. Graham), which I 
 regard as a melanic form of the present species. The hairs on 
 head, thorax, and scutellum are grey, not fulvous ; the abdomen is 
 entirely shining black, even at the base and distal extremity, and 
 the hair, including the lateral fringe, clothing it is grey, not 
 golden ; the fore tibiae are black instead of brown, and the fringe 
 on the hind tibi'-e is black on the outer as well as on the inner side. 
 The eyes seem to be without distinct bands. Wings with the 
 same pattern and pubescence as in the type, but the pubescence is 
 less developed, partly wanting in the anal cell and entirely wanting 
 in the axillary cell ; the glabrous hind border is therefore broader ; 
 the appendix to the kink in the third vein is rather long. 
 
PIIYTOMIA. 73 
 
 07. Phytornia (Megaspis) erratica, Bezzi. 
 
 is erratica, Bezzi, Ann. Mas. Civ. Genova, (3) v. p. 424 
 (1912). 
 
 At once distinguished from the other Ethiopian species of the 
 bullata- group on account of its bare arista, and very like the 
 Oriental rrrans, from which it is distinguishable owing to its 
 entirely black antennae. 
 
 The female, which is not yet described, is. apart from sexual 
 differences, very like the male. The eyes have five to six horizontal 
 dark bands. 
 
 Type of. 2 , from Betsileo, Madagascar (purchased from E. Bartlett, 
 1878). Additional specimens as follows : a male from Zomba, 
 Xva salami (Dr. H. S. Stan HNS) ; females from Marsabit and other 
 localities in British East Africa, vii.-x. 1911 (Dr. J. PugJi, E. J. 
 Stordy, and Capt. C. A.S~eave)\ a female from Durban, Natal, 
 26. x. 1902 (F. JIuir). The species seems to be quite common 
 throughout the Ethiopian Region. 
 
 68. Phytomia (Eristalis) natalensis, Mac quart (1849). 
 
 Very distinct from any other African species, with the exception 
 of the following one, owing to the presence of broad, alternate 
 yellow and black bands on thorax and abdomen. 
 
 This and the following species are closely related to the Oriental 
 zonafa, Eabr. (syn. cingulata, Snell. v. A'oll.), and its ally Ph. 
 (Eristalis) flavofasciata, Macq. (syn. zonata, auct.) ; they may. 
 however, at once be distinguished by the hyaline unspotted wings, 
 which are totally devoid of pubescence. 
 
 Pln/tomia itatalensis is widely distributed in Africa, but more 
 prevalent in the south ; there are two females in the collection, 
 one from Durban. Xatal (F. J/W/-),and one from Marsabit, British 
 East Africa, 23. ix. 1911 (J?. J. Stordy). 
 
 69. Phytomia curta (Eristalis curtus), Loew (1858). 
 
 Although Pliytomia curta is generally considered as only a 
 variety of the preceding, after examining a very extensive series of 
 more than fifty specimens of both sexes in the Hungarian Museum, 
 I am convinced that Loew was right in distinguishing it as a 
 species. It is recognisable at once, owing to its short and more 
 rounded shape, the presence of a broad yellow tomentose band just 
 before the scutellum, and the greater breadth of the yellow bands 
 on the abdomen, which are well developed even on the third and 
 fourth segments, the latter being also very shining. 
 
 While natalensis is more especially a southern form, the present 
 species is commoner in Equatorial Africa, chiefly on the East Coast. 
 
 A female from the Uganda Protectorate, Daro or Durro Forest, 
 Toro, 4,000-4,500 ft., 25-29. ix. 1911 (S. A. Neave) -, four females 
 fromObuasi, Ashanti, West Africa, viii.-ix. 1907, caught "hovering 
 over swampy ground" (Dr. IV. 2T. Graham). 
 
74 SYRPIIID^. 
 
 70. Phytomia fucoides, sp. n. 
 
 $ . Length of the body 15 mm. 
 
 This species unites the characters of the bunata-groMip with 
 those of the zonata-grou.p, agreeing in shape with natalensis, but 
 not being yellow-banded ; it is distinguished by its black abdomen 
 and by the wings being pubescent on the basal half. 
 
 Head black, grey pollinose, moderately shining; frons broad, 
 gently rounded, clothed with rather long and closely-set yellowish 
 hairs, which are dark towards the middle; occipital border almost 
 bare, white below ; supra-antennal area rather small, dark reddish, 
 more deeply punctate than wrinkled; antennae short, blackish 
 brown, the third joint rounded, with a reddish arista, which is 
 plumose basally ; face broad, with short yellowish hairs, the tubercle 
 rather prominent but rounded, the lateral keels rather distinct ; 
 peristoma broad, shining black on the middle, yellowish pilose 
 beneath ; opening of buccal cavity small ; proboscis black ; eyes 
 small, purplish black, with (?) four bands. Thorax black, dark 
 pollinose, dark reddish on the humeri, clothed on the dorsum with 
 dense yellowish-red hairs, and on the pleurae with paler hairs, though 
 those on the mesopleurse are black. Scutellum dull black, dark 
 red towards the hind border, margined, and densely clothed with 
 erect cinnamon -rufous hair ; squamulae black and black-fringed ; 
 halteres brownish ; subalar callosity dark brownish. Abdomen 
 dull black, somewhat shining towards the distal extremity ; the 
 hair is short and dense, longer towards the apex, coloured like that 
 on the thorax, but darker on the middle and hind border of each 
 segment. Legs black and clothed with similarly coloured hair, all 
 the tibiae whitish towards the base, and there pale pilose ; tarsi 
 dark red, those on the first pair short and broad. Wings hyaline, 
 with typical venation, the basal half as far as the base of the 
 discal cell appearing infuscated on account of its dense pubescence. 
 
 Type $ , a single specimen from the Uganda Protectorate, Daro 
 or Burro Forest, Toro, 4,000-4,500 ft,, 25-29. ix. 1911 (S. A. 
 Neave). 
 
 There is in the collection a damaged female specimen, without a 
 head, from Madagascar, Ambohimitombo, 26. i. 1895 (Dr. Forst/fk 
 Major), very like the present species, but distinguished by the 
 second abdominal segment being yellowish on the sides, and by the 
 legs being quite black, except the tarsi which are bright orange. 
 
 71. Phytomia (Eristalis) fronto, Loew (1858). 
 
 A species resembling E. tenax, with hind tarsi of ordinary 
 length, very broad black face, and frons densely clothed with long 
 hairs. 
 
 Described from Caffraria by Loew, and not recorded again till now. 
 Typical specimens have the second abdominal segment yellow with 
 a broad black hind border and a short black transverse band on the 
 fore border; the third and fourth segments are also yellow on the 
 fore border. 
 
PHYTOMIA. / o 
 
 A female from the E. side of edge of foot of Aberdare Mountains, 
 7,300ft, British East Africa, 24. ii. 1911 (T. J. Anderson), and 
 another from Mt. Kenia, W. side, Meru-Xyeri lload, 6,500 ft., 
 20. ii. 1911 (S. A. Neave). 
 
 Other specimens belong to a variety which I call 
 
 Var. melas, var. n. 
 
 Distinguished by the entirely black abdomen, and agreeing with 
 the type in other respects. 
 
 Type $ , an additional specimen, and another female from same 
 localities and collectors as the typical series. 
 
 72. Phytomia ephippium, Bezzi. 
 
 Very like the melas variety of front o, but distinguished by 
 the peculiar conformation of the second abdominal segment. 
 Already diagnosed by me in Ann. Mus. Civ. Geneva, (3) v. 1912, 
 p. 424.' 
 
 1 introduce this form as a new species with considerable hesita- 
 tion, because it may w r ell be that the type is merely an aberrant 
 variety of front o ; but the singular conformation of the second 
 abdominal segment appears to be so regular that it may be 
 normal. 
 
 Head as in front o ; the Ions: and dense frontal hairs are mostly 
 black ; the eyes seem to have four transverse dark bands as in the 
 preceding species ; the frontal wrinkled area is bkck, as is the 
 whole of the face. Thorax and scutellum also black, but the scu- 
 tellum is more yellowish along the hind border, and the hairs on 
 its base are bkck. First abdominal segment normal ; second con- 
 sisting of two transverse ovate lappets, the inner extremities of 
 which nearly meet in the middle line, and each of which shows 
 posteriorly a broad depression followed by a flattened margin. It 
 looks as though there w r ere two segments abnormally fused together ; 
 the number of the abdominal segments is, however, normal. All 
 other details as \\\ front o melas. 
 
 Type $ , a single specimen from British East Africa, 5 miles 
 inside Kenia Forest, near Luchi River, 9. ii. 1911 (T. J. Anderson). 
 
 73. Phytomia (Simoides) villipes, Loew (1358). 
 
 Very like fronto, but easily distinguished by its shortened hind 
 tarsi and narrower face, which is yellowish with a black median 
 stripe. 
 
 This species, the type of which was collected in Nubia, was 
 described by Loew as belonging to the genus Simoides ; the male, 
 however, is as yet unknown. I place it in Phytomia on account 
 of the very broad frons of the female, which is very like that of 
 fronto and allied species, and on account of the wings showing no 
 trace of the apical pubescence so characteristic of the typical species 
 of Simoides. 
 
7(> SYllPHIDJE. 
 
 Coloration of the face like that of incisa, but the peristoina is 
 black ; coloration of abdomen as in fronto, but specimens are 
 frequently found in which the coloration is like that of the variety 
 mclas, the abdomen being quite black with only the second seg- 
 ment narrowly yellow towards the base. Hind femora in typical 
 specimens entirely black, while in fronto they are yellow at the 
 base. Squamulse of a paler colour. 
 
 Six female specimens from British East Africa : 5 miles inside 
 Kenia Forest, near Luchi River ; Kilolo lliver, N. of Mt. Kenia, 
 7,700 ft. ; and E. side of edge of foot of the Aberdare Mountains, 
 7,300 ft., all caught in February, 1911 (T. J. Anderson). 
 
 Var. femoralis, var. n. 
 
 Similar to the type, with the same coloration of face and base of 
 abdomen, but the hind femora are broadly yellow, with the apical 
 half black or blackened, and again yellow at end. 
 
 Ti/pe $ , and an additional specimen from Ho wick, Natal, 1903 
 ( J. 'P. Gregoe). 
 
 74. Phytomia incisa (Eristalis incisus), Wiedemann (1830). 
 
 Distinguished from all the preceding species of its group by the 
 short and regular hairs on the frons and thorax, by the yellow 
 peristoina, and by the whitish and white-fringed squamulse. 
 
 This species is widely distributed in the south of the Ethiopian 
 Region, and has been described several times under various names. 
 In the present collection there are only two male specimens, from 
 Chirinda Forest, x. 1905 ( G. A. JL. MarshaU), and German East 
 Africa, Uhehe District, 22-27. xi. 1910, 3,000-3,500 ft. (S. A. 
 Neave). 
 
 Genus 13. SIMOIDES, Loew (1858). 
 
 As restricted here, the species of this genus are distinguished 
 not only by the separated eyes of the male and by the narrower 
 frons of the female, but also by the pubescence at the apex of the 
 wings, which is always wanting in Phytomia. Hind femora more 
 incrassate. Eyes destitute of the straight horizontal bands seen in 
 Pliytomia, but instead adorned with some sinuous and confluent 
 dark bands, which appear to be two in number. 
 
 I know only one true species of this genus, viz. : 
 
 75. Simoides crassipes, Fabricius (1805). 
 
 Very like the preceding species of the last group of the genus 
 Pliytomia, but at once distinguished by its generic characters. 
 
 The face is more or less }'ellowish, and striped with black ; the 
 peristoma is yellow, with a black oblique band on each side ; the 
 hind femora seem to be variable, being more or less broadly yellow 
 at the base. 
 
SIMOTDES. LATHrKOPHTHALMUS. 77 
 
 The species is also widely distributed in the Ethiopian Region, 
 but seems to be very often confused with some other species 
 belonging to the preceding genus. In the collection there are two 
 males and two females from Durban, 1902 (F. Muir} ; Salisbury, 
 S. Rhodesia (Gr. A. K. Marshall) ; Oshogbo, Southern Nigeria, 
 x. 1910 (Dr. T. F. G. Mcfyer)-, Obuasi, Ashanti, W. Africa, 
 x. 1907, " caught on window " (Dr. W. M. Graham). 
 
 Genus 14. LATHYROPHTHALMUS, Mi'k (1897). 
 
 I have adopted here for practical purposes the present group, 
 which is evidently an artificial one, based only on the spotted eyes 
 of the male. It contains heterogeneous elements, such as species 
 with bare eyes or with widely separated eyes in the male sex ; but, 
 as a rule, the eyes are united and densely pilose on the upper half. 
 No doubt the naked-eyed species, with conical abdomen, form a 
 transition to Simoides, from which they are distinguished only by 
 the spotted eyes. 
 
 The rather numerous species in the collection can be divided into 
 five distinct groups, viz. : (1) Eyes bare, separated in the male ; 
 face produced below. (2) Eyes bare, united in the male; face 
 produced. (3) Eyes hairy; face produced, with a broad black 
 stripe. (4) Eyes hairy ; face not produced, with three black- 
 stripes. (5) Eyes hairy; face kss produced, with a yellow tubercle; 
 body short and broad. 
 
 1(10) Face very much produced below, almost 
 
 conical ; antenual tubercle very 
 
 prouiiiient ; third autennal joint 
 
 entirely black, or only narrowly 
 
 yellowish below ; black spots on the 
 
 eyes coalescent, sometimes lused; 
 
 eyes of the males touching for a 
 
 short distance or separate. 
 '2 (7) Eyes quite bare ; third joint of the 
 
 antenna} rounded, "wholly black ; 
 
 autennal tubercle and face grey 
 
 pollinose, the facial tubercle black ; 
 
 hind femora rather thick ; hind tarsi 
 
 black. 
 
 3 (4) Eyes of the male widely separate as in 
 
 Simoides ; fourth ventral segment of 
 the male with a long bilobed appen- 
 dage; hind femora yellow on the 
 basal half; fourth abdominal seg- 
 ment brown or black, with the 
 whitish hind baud alone ; thorax 
 not banded niodestus, Wied. 
 
 4 (3) Eyes of the male united along a short 
 
 line; fourth ventral segment with- 
 out appendage. 
 
 5 (6) Hind femora broadly yellow at the 
 
 base; thorax on the* back with a 
 
78 SYKPHIDJE. 
 
 broad dark transverse band behind 
 the suture ; fourth abdominal seg- 
 ment with three whitish transverse 
 bands; second abdominal segment 
 of the female with an entire yellow 
 
 band myiatropinus, Spei.s. 
 
 C (5) Hind femora wholly black ; thorax 
 without transverse bands, in the 
 male with four indistinct longitu- 
 dinal black stripes ; fourth abdo- 
 minal segment without the central 
 whitish band ; yellow band on the 
 second abdominal segment in the 
 female broadly interrupted gymnops, sp. n. 
 
 7 (2) Eyes clothed with long hairs above, 
 
 more or less bare on the inferior 
 half; third antenual joint elongate, 
 yellowish below ; anteunal tubercle 
 and a broad facial stripe shining 
 black ; hind femora not thickened ; 
 hind tarsi yellow with black tips. 
 
 8 (9) Front tarsi black, the same colour also 
 
 predominating in the legs generally ; 
 yellow bands on the abdomen small, 
 the first usually interrupted in the 
 middle in both sexes ; abdomen of 
 the male with strong aeneous re- 
 flexions euzonus andersoni, var. n, 
 
 9 (8) Front tarsi yellow, at least broadly 
 
 yellow towards the base ; abdomen 
 with broad yellow bands, the first of 
 which is not interrupted in the 
 middle ; abdomen of the male with- 
 out seneous reflexions mdanops, Karsch. 
 
 10 (1) Face not produced, almost rounded 
 
 below, or very little produced ; 
 antennal tubercle less prominent ; 
 third antennal joint yellow, at most 
 with a dark upper border ; bla:k 
 spots on the eyes usually not coales- 
 cent ; eyes always hairy, those of the 
 male usually united for a long dis- 
 tance ; thorax with very distinct 
 stripes on the back. 
 
 11 (14) Face adorned with three black stripes, 
 
 the middle tubercle being black; 
 peristoma very narrow, not promi- 
 nent at all ; scutellum entirely pale- 
 haired ; pterostigma with a single 
 brown spot. 
 
 12 (13) Wing-veins black towards the end; 
 
 abdomen of the female with broad 
 basal yellow spots on the sides; white 
 bands on the abdomen smaller and 
 less striking ; black peristomal stripe 
 broad; venter black or black-spotted. quinqueUncaius, Fabr. 
 
LATUYKOPIITHALMUS. 79 
 
 13 (12) Wing-veins and costa entirely yellow ; 
 
 abdomen of the female narrowly yel- 
 low on the sides ; white abdominal 
 bands broad, pure white, and very con- 
 spicuous; black peristomal stripe 
 usually not distinct ; venter yellowish 
 grey, unspotted var. tabanoides, Jaenn. 
 
 14 (11) Face* without black stripes, the middle 
 
 tubercle being yellow ; peristoma 
 rather broad and more prominent ; 
 pterostigma with a basal and also 
 an apical brown spot; scutelluui with 
 black hairs in the middle. 
 
 15 (22) Second abdominal segment without a 
 
 black band on the fore border, or with 
 a very small one ; first yellow band 
 never interrupted ; hind femora more 
 or less broadly yellow at the base ; 
 all the tarsi yellow, or very rarely 
 the hind pair blackened at the tips. 
 1C (21) Abdomen with very broad black bands, 
 which are broadly shining behind, 
 the third and fourth segments in 
 great part black ; hind tarsi wholly 
 yellow, or only a little infuscated 
 towards the end. 
 
 17 (20) Third and fourth abdominal segments 
 
 wilh a yellow baud, the third without 
 transverse white stripe ; thoracic 
 stripes dullish or dull ; hind femora 
 black with yellow base. 
 
 18 (19) Smaller and pale-coloured species; 
 
 squamula3 pale with broad dark bor- 
 der: hind femora broadly yellow at 
 the base ; black thoracic stripes 
 narrow, not broader than the grey 
 stripes, the median stripe distinctly 
 divided trizonatiis, Big. 
 
 19 (18) Species of larger size and darker 
 
 colouring ; equarnulae blackish ; hind 
 femora narrowly yellow at the base ; 
 black thoracic stripes broad, the 
 median stripe scarcely divided, the 
 lateral stripes more than twice as 
 broad as the grey stripes jlaveolus, Big. 
 
 20 (17) Third and fourth abdominal segments 
 
 entirely black, the third with a com- 
 plete white stripe like the fourth ; 
 hind femora wholly yellow ; thoracic 
 black stripes shining, with a dull 
 black border .vanthopuSj sp. n. 
 
 21 (16) Abdomen wholly yellow, with narrow 
 
 black bands on the hind borders of 
 second, third, and fourth segments, 
 which are all opaque ; hind tarsi 
 black on the two apical joints ; all 
 
80 SYBPHIDJ3. 
 
 the femora broadly yellow towards 
 
 the base vicarians, sp. n. 
 
 22 (15) Second abdominal segment with a 
 
 broad black fore border, which is 
 usually united with the hind border 
 in the middle line, the first yellow 
 band consequently interrupted in the 
 middle ; hind femora quite black ; 
 all the tarsi black at the tips. 
 
 23 (24) Eyes with a few well-separated black 
 
 spots ; sides of face wholly dull, 
 densely covered with pollen ; thorax 
 
 on the back entirely dull diilciSj Karsch. 
 
 24. (23) Eyes with very numerous, partly con- 
 fluent, black spots ; sides of face a 
 little shining 1 , the black colour of the 
 ground being distinct ; dorsum of 
 thorax distinctly shining on the pos- 
 terior half dissimilis, Ad. 
 
 76. Lathyrophthalmus modestus, Wiedemann (1818). 
 
 Very distinct -from any other species of the present genus on 
 account of its bare eyes, which are broadly separated in the male, 
 and of its thorax, which is without any distinct pattern on the 
 back. 
 
 Originally described from South Africa as a HelopJiilus, I think 
 that this is the species subsequently described by Macquart as 
 Eristalis anal is ; Adams has recorded the latter species from 
 Khodesia, but, from his description of the thorax and fourth abdo- 
 minal segment, it appears more probable that he had the species 
 myiatropinus before him. 
 
 The genitalia of the male are very characteristic ; they are 
 globose, shining reddish black ; the fourth ventral segment ter- 
 minates below in a long appendage, which is deeply incised in the 
 middle, appearing hilobed ; the third ventral segment is also pro- 
 duced in the middle, but not bilobed. The }'ellow band on the 
 second abdominal segment is often divided in the middle, chiefly 
 in the female, the anterior black band being united with that on 
 the hind border. 
 
 A male from Deelfontein, Cape of Good Hope (Surg.-G-en. Sir 
 A. T, Sloggett); another male from the Cape of Good Hope, without 
 precise locality ; a female from the Cape of Good Hope (presented 
 by Rev. A. E. Eaton}. A small female from Stellenbosch, Cape 
 of Good Hope, xi. 1904 ( G. A. K. Marshall), is only 10 mm. long, 
 and has the yellow hind borders to the segments a little broader 
 than usual ; the eyes have no distinct spots, but the specimen is 
 greasy ; I have a very similar female from Willowinore, Cape of 
 Good Hope, in which the spots on the eyes are as usual very 
 distinct. 
 
LATH YBUPIITIIALMU9. 81 
 
 77. Lathyrophthalmus myiatropinus, Speiser (1910). 
 
 A very peculiar species, easily recognisable in both sexes by the 
 pattern on the thorax and fourth abdominal segment. 
 
 Dr. Speiser described the male from Kilimandjaro. The female 
 is verv similar; the middle of the frons is clothed with grey 
 pollen, interrupted by a transverse moderately shining median band; 
 thorax with the characteristic pattern ; second and third abdo- 
 minal segments with broad black hind borders, that on the third 
 being the broader of the two, fourth segment entirely black, with 
 the peculiar pattern seen in the male. 
 
 Abdomen of the male more conical and narrower behind than 
 in the allied species ; genitalia rounded, black, with some black 
 appendages below, but the fourth ventral segment is merely cleft, 
 without the bilobate appendage exhibited by the preceding species. 
 
 A male from Durban, Natal, 19. iv. 1892 (F. JIuir) ; another 
 from British East Africa. M'bagori's Village, edge of Kenia Forest, 
 5,000 ft., 12.ii. 1911 (T. J. Anderson} ; and another from Yak 
 Bridge, N. Kavirondo, Br. E. Africa, 24. viii. 1911, "on mule" 
 ( C. W. Wood ho use). 
 
 78. Lathyrophthalmus gymuops, sp. n. 
 
 J . Length of the body 12 mm. 
 
 Closely allied to the preceding, but distinguished from it and 
 from the other bare-eyed species by its hind femora being entirely 
 black. 
 
 Head black, dark grey pollinose ; eyes reddish, bare, with many 
 round black spots, less numerous and mostly isolated on the lower 
 half, but verv numerous and confluent on the upper half ; in the 
 male the eyes are united for a very short distance, shorter than 
 half the length of the vertical triangle ; occipital border with long 
 grey hairs above ; vertical triangle black-haired ; frontal triangle 
 narrowly black and shining immediately above the antenna?, black 
 pilose higher up ; face very much produced below, conical, with a 
 small black median tubercle and a black border to the edge of the 
 buccal cavity ; peristoma narrow and shining black, pale-haired 
 beneath ; epistoma with a deep notch in front ; sides of the face 
 clothed with long whitish hair ; frons of the female shining black 
 on the upper fourth, dark grey below, clothed with long and 
 closely-set blackish hair, with a small shining black subtriangular 
 spot above the antennae ; lunula reddish ; antenna short, quite 
 black, the third joint very short and rounded ; arista long, dark 
 reddish, bare ; opening of buccal cavity long and narrow, linear; 
 proboscis black. Thorax moderately shining, black, clothed on the 
 dorsum with rather long grey-fulvous hair, with some black hair 
 intermingled ; pleura greyish, pale-haired ; in the male there ar^ 
 four inconspicuous longitudinal black stripes, which in the female 
 are scarcely noticeable. Scutellum dark yellowish, blackish towards 
 the base, clothed with hair like that on the thorax, with some 
 
82 STRPH1D.E. 
 
 black bristle-like hairs in the middle ; squamulse whitish, yellow- 
 margined and white-fringed ; halteres whitish. Abdomen of the 
 male less conical than in the preceding species ; first segment black, 
 grey-margined ; second yellow, with a rather broad black basal 
 band, tapering towards the sides, which it does not reach ; there 
 is also a short brownish band before the hind border ; third yellow, 
 with a brownish and darker band before the hind border ; fourth 
 brownish black, shining, with whitish bands on the fore border, 
 sides, and hind border, but without a middle band ; genitalia of 
 the male shining black, with a single black appendage below ; 
 fourth ventral segment simple. The hair on the abdomen is pale, 
 rather long on the base at the sides, dark on the dark portions. 
 Abdomen of the female almost entirely black, moderately shining ; 
 second segment with a yellow band, broadly interrupted in the 
 middle and dilated on the sides ; third segment with only a small 
 yellow stripe on each side ; fourth with the whitish pattern less 
 distinct. Legs entirely black, clothed with short pale hair ; knees 
 and base of tibiae, more broadly in the female, yellow ; hind femora 
 rather thick, a little bent, almost bare below, with some black 
 bristles before the end ; claws black, small, reddish at the base. 
 Wings hyaline, with a faint yellowish tinge, without any pubes- 
 cence ; marginal cell very short-stalked, as long as the subcostal 
 cell ; kink in the third vein very deep, but rounded ; small cross- 
 vein at the middle of the discal cell ; this last cell without an 
 appendix ; anal cell dilated towards its middle ; there is a small 
 black stigmatic spot. 
 
 Type $ , type 5 > and an additional female specimen from British 
 East Africa, Kilolo River, N. of Mt. Kenia, 7,700 ft., 16. ii. 1911, 
 and W. of Mt. Kenia, 8,300 ft., 18. ii. 1911 (T. J. Anderson}. 
 
 79. Lathyrophthalmus euzonus, Loew (1858). 
 
 Distinguished by the prominent face, which is almost entirely 
 shining black like the antennal tubercle, and by the legs being 
 for the most part black. The species Ion yi corn is, Adams, seems 
 also to belong here. The colouring of the abdomen appears to be 
 very variable, according to Loew ; the present specimens, however, 
 belong to a distinct variety, which I had previously regarded as a 
 good species. This variety may be characterised as follows : 
 
 Var. andersoni, var. n. 
 
 c? $ . Length of the body 10-11 mm. 
 
 Head black, dark grey pollinose, whitish on the lower occipital 
 border ; eyes clothed with dark and rather long hairs, and adorned 
 with numerous confluent black spots ; in the male they meet 
 together for a short distance, equal to half the vertical triangle in 
 length ; occipital border with long yellowish hair above, almost 
 bare on the sides, and with long white hair below ; vertical tri- 
 angle of the male moderately shining, black and clothed with 
 
LATH-EBOPHTHALMUS. S3 
 
 black hair ; frontal triangle entirely shining black, clothed with long 
 black hair ; frons of female rather narrow, densely covered with 
 dark grey pollen, with long dark hairs (which become paler towards 
 the antennae) in the middle, shining black around the ocelli and 
 above the base of the antennae ; antennal tubercle very prominent ; 
 antennae black, the third joint elongate, rectangular, but rounded 
 on the upper side, with a yellow border below ; arista longer than 
 the antenna, bare, dark red ; face shining black, the pollen on 
 its sides very faint in the male, denser in the female ; facial 
 tubercle small, shining, black, prominent and rounded ; face much 
 produced below ; peristoma narrow and shining black, white pilose 
 beneath ; epistoma deeply divided, the opening of the buccal cavity 
 long and narrow ; proboscis black. Thorax black, dark grey 
 pollinose, somewhat shining, especially behind the suture, with 
 trace of dark longitudinal stripes and clothed with long yellowish- 
 grey hairs, which are greyer on the pleurae. Scutelkim rounded, 
 yellow with metallic reflexions, blackish towards the base, clothed 
 with long hairs like those on thorax, without any black hairs ; 
 squamulae yellowish white, with whitish fringes ; halteres whitish. 
 Abdomen of the male with a metallic sheen over the whole surface; 
 first segment black, bordered with grey ; second yellow, with a 
 black border in front and behind, united together in the middle ; 
 thii'vl black, with a yellow spot on the fore border on each side ; 
 fourth entirely black ; genitalia shining black ; hairs long, pale on 
 the base and on the yellow portions, black at the end and on the 
 dark portions ; sides and belly clothed with very long yellowish 
 hail's. Abdomen of the female black, with a yellow spot on each 
 side of the second and third segments, those on the second being 
 broader ; fourth with a basal whitish tomentose transverse band. 
 Legs black, tibiae yellow at the base ; hind femora not thickened, 
 narrowly yellowish at the base ; front tarsi black, the others yellow 
 at the base ; hairs black, pale on the yellow portions and on the 
 hind femora. Wings hyaline, without pubescence, but with a 
 slight yellowish tinge towards the middle ; venation typical, but 
 the marginal cell very short-stalked, sometimes almost sessile ; 
 second basal cell rather dilated towards its upper exterior angle ; 
 stigma dark yellow, broadly black at the base, and more narrowly at 
 the end. 
 
 Type cT , type $ , and three other additional specimens from 
 British East Africa, five miles within Kenia Forest, near Luchi 
 Kiver, 9. ii. 1911, and K. side of edge of foot of Aberdare Moun- 
 tains, 7,300 ft., 24. ii. 1911, collected by T. J. Anderson, in whose 
 honour the variety is named. 
 
 80. Lathyrophthalmus melanops, Karsch (1SS7). 
 
 Very near the preceding species, and perhaps only a variety of 
 it, distinguished by the paler coloration of abdomen and legs, and 
 by being known only from the West Coast. 
 
 Described from Pqngo-Andongo under the names melanopt 
 
 a 2 
 
81 
 
 and decolor, the first of which must be retained, in opposition to 
 Kertesz's Catalogue, which has the second. Karsch describes only 
 the male ; the third antennal joint is elongate, rectangular, longer 
 than the first two joints taken together, black, narrowly reddish 
 below ; arista dark brown, bare, longer than the antenna. The 
 female is very like the male, but has the middle black facial stripe 
 less broad; above the antennal tubercle there is a shining black 
 broad area ; frons black, but in the middle with a grey transverse 
 band ; hairs on the frons rather short and regular, mostly black. 
 Abdomen as in the male, with very broad yellow bands ; fourth 
 segment black or only with a narrow yellow stripe on fore border. 
 
 A male and three females from West Africa, Obuasi, Ashanti, 
 iv.-viii. 1907, " caught hovering over wells in stream, or on com- 
 posite flowers" (Dr. IV. j\L Graham). 
 
 81. Lathyrophthalmus quinquelineatus, Falricius (1781). 
 
 Easily distinguishable from any other species here recorded 
 owing to the presence of three black facial stripes, and to the face 
 being rounded and not produced. The eyes of the female are 
 almost bare, with only a few hairs above. 
 
 Of this common and widely spread species there are numerous 
 specimens of both sexes from Nyasaland, Fort Johnston, 2,000 ft., 
 vi. 1910, dry season (A. H. Barclay], and same locality, i. 1910 
 (H. N. Tate) ; from Zomba, iv. 1910 (Dr. H. S. Stannns) ; from 
 Durban (Mitchell Park), Natal, 23. i. 1903 (F. Muir) from 
 Marsabit, British East Africa, 24. ix. 1911 (R. J. Stordy), and 
 same locality (Dr. G. Pitgh). 
 
 82. Lathyrophthalmus tabanoides, JaennicJce (1867). 
 
 Perhaps only a variety of the preceding, from which it differs 
 owing to paler coloration and broader and more conspicuous white 
 bands on the abdomen. 
 
 Becker considers it to be a good species, while Yerrall has it as a 
 synonym of the preceding, with a query. The male is unknown. 
 
 There are in the present collection some females from British 
 East Africa, Languaira, 11. ix. 1911 (R. J. Stordy), and one from 
 N. Guaso-Njero, 7. ix. 1911 (same collector); also a female from 
 Massowah, xii. 1886 to ii. 1887 (D. W. Barker). This last is the 
 locality where the species was first discovered by Ruppell. 
 
 83. Lathyrophthalmus trizonatus, Bigot (1858). 
 
 Among the members of the group characterised by a yellowish 
 facial tubercle, double pterostigma, and a band of brown hair 
 across the middle of the scutellum, the present species is dis- 
 tinguished by having yellow tarsi and broad black abdominal bands, 
 the second segment with the hind border only black. 
 
LATH YROPITTH.VLMUS. 85 
 
 With this species begins a group of closely allied small species, 
 of which there are six in the collection. The thorax is strongly 
 strip-ad as in quinquelineatus, the stripes being equally strong in 
 both sexes ; the body is short and quadrate, while in all the 
 preceding groups it is elongate and conical. 
 
 The present species was originally described from Gaboon ; there 
 are three females from West Africa, Obuasi, Ash.mti, v.-viii. 1907. 
 " caught in swamp " i Dr. If. M. (Irak" 
 
 84. Lathyrophthalmus flaveolus, Biyot (1880). 
 
 Very near the preceding, but of greater size and darker colour- 
 ing, with the black thoracic stripes broader than the light ones. 
 
 Originally described from Senegal; some specimens of both 
 sexes from West Africa, Obuasi, Kumasi and Eduadin, Ashanti, 
 i.-x. 1907, "caught hovering in swamp or near stream, the cT 
 hovering round head" (Dr. W. M. Graham). 
 
 85. Lathyrophthalmus xanthopus, sp. n. 
 
 $ . Length of the body 11 mm. 
 
 Closely allied to the two preceding species, but distinguished by 
 the black thoracic stripes being somewhat more shining, and by the 
 third and fourth abdominal segments being wholly black, without 
 yellow bands. 
 
 Head black, densely grey pollinose, only a little shining near the 
 vertex ; frons clothed with dark hairs, which become paler near the 
 fore border; before the ocelli there is a trace of a small black 
 transverse band ; antenna! tubercle very little developed, wholly 
 pollinose ; face entirely pollinose, the pollen grey on the sides, 
 yellowish in the middle and below, disposed on the sides in oblique 
 wa ves ; hair on the sides whitish ; tubercle yellow, not very promi- 
 nent : face but little produced, epistoma not deeply bilobate, the 
 opening of the buccal cavity small and round ; proboscis black ; peri- 
 stoma narrow, shining black, white-haired behind ; antennae entirely 
 yellow, the third joint short-oval, subquadrate, with a dark upper 
 border ; arista long, bare, dark reddish ; eyes dark red, with very 
 numerous and small round black spots, only on the upper edge a little 
 confluent ; the hairs on the eyes are very short and scarce, brown, 
 confined to the upper edge, the greater part being bare. Dorsum of 
 thorax yellowish-grey pollinose, with four broad longitudinal black 
 stripes, which have a purplish sheen in the middle and are velvet- 
 black on the sides ; the two middle stripes are close together and 
 become broader behind, the two lateral stripes are broader than 
 the dividing-lines and become narrower behind ; notopleural region 
 aeneous and somewhat shining ; pleura grey pollinose, with a dark 
 horizontal band across the mesopleura ; hairs short, pale yellowish. 
 Scutellum yellow, darkened at the base, clothed with yellowish 
 hairs, but with the broad middle band of black hairs very distinct 
 
86 SYRPHIDJE. 
 
 Abdomen clothed with very short pale hair, a little longer on the 
 sides ; first segment whitish, with a black spot below the scutellum, 
 and a very narrow black hind border continuous with the fore 
 border of the second segment ; this segment whitish, with a broad 
 dull black hind border, narrowed towards the sides and shining 
 near the hind margin ; third and fourth segments shining aBneous 
 black, with a broad dull black band across the middle, and on the 
 fore part of this band with a narrow curved whitish band, which 
 does not reach the sides ; last segment entirely shining aeneous ; 
 venter black, grey pollinose. Femora and tarsi reddish, tibia? 
 whitish, the hind ones reddish on the apical half ; there are no 
 actual black markings on the femora, although these joints bear 
 darker patches ; the hairs are white, black on the femora and partly 
 on the hind tibia?. Wings hyaline, slightly yellowish, with 
 yellowish veins and typical venation ; discal cell with a short 
 appendix; stigma yellow, with the usual two small black spots; 
 marginal cell short-stalked. 
 
 Type $ , a single specimen from West Africa, Obuasi, Ashanti, 
 " caught hovering over pond " {Dr. W. 31. Graham}. 
 
 86. Lathyrophthalmus vicarians, sp. n. 
 
 c? . Length of the body 10 mm. 
 
 Near the preceding species, but distinguished by the abdomen 
 being yellow, with narrow dull black bands, and by the hind tarsi 
 being black at the tips. 
 
 This species is very like the Oriental quinquesfriatu, Fabricius, 
 from which it differs chiefly in the colour of the legs. 
 
 Head black, densely covered with yellow pollen, which entirely 
 conceals the ground-colour; vertical triangle very small, dark- 
 haired ; eyes purplish red, shining towards the middle, covered 
 with small black spots, which are confluent on the upper part ; the 
 eyes are clothed on the upper half with short brown hair, and meet 
 together for a distance equal in length to the frontal triangle ; the 
 upper facets are distinctly larger than those of the lower part ; 
 frontal triangle broad and rounded, with long but sparse dark 
 hairs ; facial tubercle yellowish, not very prominent ; pollen on 
 the face disposed in waves on the sides, which are also clothed 
 with short yellowish hair ; peristoma narrow, not produced, 
 shining yellow towards the edges of the buccal cavity ; epistoma 
 not deeply bilobate ; opening of buccal cavity short and broad ; 
 antennae entirely yellow, the third joint ovate, with a dark upper 
 border ; arista long, bare, dark yellowish on the base ; hairs on the 
 peristoma yellowish behind. Thorax yellow pollinose, on the 
 dorsum with four distinct dull black stripes, of which the lateral 
 ones are only as broad as the dividing stripes ; all the stripes taper 
 off before the scutellum ; hairs long, yellowish ; pleura? grey, meso- 
 and sternopleura partly dark. Scutellum yellow and clothed with 
 vellow hair, with the broad band of black hair very well marked. 
 Squamnlse blackish ; halteree yellowish. Abdomen entirely yellow, 
 
LATIIYROPHTHALMUS. ER1STALODES. 87 
 
 on the hind border of second, third, and fourth segments with a 
 small dullish black band; genitalia shining black, small; hairs 
 pale yellowish, rather long, dark on the black binds ; venter 
 yellow, black on the extreme border of the fourth segment. 
 Femora black, the four anterior ones yellow at base and at end, 
 the two posterior only at the base but broadly ; tibiaB black, with 
 whitish base, which is broader on the four anterior ; tarsi yellow, 
 last two joints of the hind pair dark brown ; hair whitish on the 
 pale-coloured and black on the dark portions. Wings yellowish 
 hyaline, with a double stigma and typical yellowish veins ; marginal 
 cell short-stalked ; discal cell with a very short appendix. 
 
 Type 3 , a single specimen from S. Nigeria, Lagos (Dr. A. 
 Connal). 
 
 87. Lathyrophthalmus dulcis, Karsch (1887). 
 
 Very near trizonatus, but distinguished by the entirely black 
 hind femora, by the black ends of all the tarsi, and by the broad 
 black band on* the anterior margin of the second abdominal 
 segment. 
 
 Originally described from Pungo-Andongo. A single female 
 from West Africa, Obuasi, Ashanti ; " caught in swamp," 27. v. 
 1907 (Dr. W. 3f. Graham}. 
 
 88. Lathyrophthalnms dissimilis, Adams (1905). 
 
 Very like the preceding, but differing in the eyes having a larger 
 number of confluent spots, and in the sides of the face and the 
 hind part of the dorsum being shining. 
 
 The eyes of the male are united for a short distance, the length 
 of which is shorter than that of the vertical triangle ; owing to the 
 large number and partly confluent character of the spots on the 
 eyes, and to the rather prominent face, this species forms a con- 
 necting-link with the melanops-group. The pollen on the sides of 
 the face is very characteristic, since it allows small spots of the 
 ground- colour to be seen. 
 
 A single male specimen from Salisbury, S. Rhodesia ( Gr. A. K. 
 Marshall} ; this is the type locality, but the present specimen 
 measures only 7 mm. in length, while Adams gave 10 mm. 
 
 Genus 15. ERISTALODES, J/i'Xr (1897). 
 
 This genus seems to be characteristically Ethiopian, and has 
 few, if any, representatives in the Oriental Region, from which I 
 do not know a single species with certainty (jf kobusi and 
 fariv*). 
 
 The species before me may be distinguished as follows : 
 
 1 (8) Scutellum yellow, transparent, or only 
 blackened towards the base, clothed 
 
 iitirelv or at least on the hind border 
 
88 
 
 with yellow liair ; pterostigma pale 
 yellow and short. 
 
 2 (5) Antennae yellow, the third joint darkened 
 
 along the upper border or in the upper 
 part ; dorsum of thorax strongly striped. 
 
 3 (4) Facial tubercle black ; eyes with four or 
 
 three dark bands ; femora mostly black ; 
 thoracic stripes shining and bordered 
 with black ; fourth abdominal segment 
 without yellow band ; upper facets of 
 the eyes only a little larger than the 
 lower ones ; occipital border in the female 
 broadly shining black above 
 
 4 (3) Facial tubercle yellow ; eyes with five 
 
 bands ; femora mostly reddish yellow ; 
 thoracic stripes not margined with black ; 
 fourth segment usually with a yellow 
 band; upper facets distinctly larger; 
 occipital border grey polli nose 
 
 5 (2) Antennae black, or only the third joint 
 
 narrowly yellowish below; dorsum of 
 thorax with less distinct or indistinct 
 stripes. 
 
 6 (7) Eyes with five to six narrow bands, and 
 
 not spotted between ; face with distinct 
 
 lateral stripes tteniops, Wied. 
 
 7 (6) E\es with three broad black bands and 
 
 V>me spots between : face almost entirely 
 black, the lateral stripes therefore not 
 distinct 
 
 8 (1) Scutellum quite black, with a blui.-h tinge, 
 
 entirely clothed with black hair ; face 
 with two very broad metallic shining 
 stripes on the sides ; abdomen without 
 yellow bands ; wings strongly infuscated, 
 with a very elongate black stigma ; 
 squamulse blackish seychellarum, sp. n. 
 
 pluricittntus, Macq. 
 
 barclay i } sp. n. 
 
 fuscicornis, Karsch. 
 
 89. Eristalodes plurivittatus, Mucqitnrt (1855). 
 
 Easily distinguishable by the four thoracic stripes being shining 
 and margined with black, and by the eyes, the upper facets of 
 which in the male are smaller than in the allied species, usually 
 having four dark bands. 
 
 This species seems to be widely distributed over the Ethiopian 
 Kegion, but is more common on the West Coast. The eyes show 
 rather numerous black spots between the bands. There are some 
 specimens in which the bands on the eyes are only three in number, 
 the first (or that nearer the antennae) being wanting or only 
 faintly indicated ; these specimens are usually of smaller size. 
 Some of them, which appear to be immature, have pale reddish 
 femora, reddish peristoma, and also often the lower portion of the 
 facial tubercle yellowish. The yellow band on the second abdo- 
 minal segment is rarely wanting ; the greyish-white bands on the 
 
EIUSTALODES. 89 
 
 third and fourth segments are sometimes reduced or wanting. 
 The black band or spot on the frons of the female is usually broad 
 and intensely black, bat sometimes much reduced and less distinct. 
 A good character of this species is the broad, shining black, upper 
 occipital border in the female. 
 
 There are in the collection two males and eighteen females of 
 the typical form : Obuasi, Ashanti, v.-ix. 1907 (Dr. W. M. 
 (Ira ham} ; Sierra Leone Protectorate, Karma District, x.-xi. 1906 
 (Dr. H. E. ArbucMe) ; S. Nigeria, Oshogbo, i.-vi. 1910 (Dr. T. 
 F. G. Mayer} \ Ibadan (Capt. Leslie} ; British East Africa, Kenia 
 Forest, near Luchi River, 9. ii. 1911 (T. J. Anderson}', Xyasa- 
 land, Zomba (Dr. H. S. Stannus) ; Durban, 8. ii. 1902 (F. Muir}. 
 Besides these there are three female specimens with only three 
 bands on the eyes, but tvpical in other respects, from Sierra Leone 
 (J. Foxcroft} *T& from Obuasi, Ashanti, vii. 1907 (Dr. W. M. 
 Graham}. A female from Entebbe, Uganda, 1. x. 1904, has three 
 ocular bands, entirely black abdomen, and almost entirely black 
 scutellum, with only the hind border yellow. Finally, three 
 females, with three ocular bands, pale legs, and more or less yellowish 
 peristoma and facial tubercle, from Zungeru, X. Xigeria, 9. iii. 
 1911 (Dr. J. W. S. Mucjir] and Oshogbo, S. Nigeria, i.-iii 1911 
 (Dr. T. F. G. Hayer). 
 
 90. Eristalodes barclsyi, sp. n. 
 
 d $ . Length of the body 1415 mm. 
 
 A very distinct species, w r ith 5-6 narrow ocular bands, sharply 
 striped thorax, and facial tubercle and edges of buccal cavity wholly 
 yellow. 
 
 This rather large species recalls E. tceniops, from which it is at 
 once distinguished by the strongly striped thorax ; it is also allied 
 to E. macrops, Karsch, which has opaque thoracic stripes and a 
 black facial tubercle ; it seems also to have some affinity with the 
 Oriental E. an-orum, Fabr., which has also a yellow facial tubercle, 
 but has no bands on the eyes. 
 
 Head black, covered with grey pollen on the occiput and yellowish- 
 grey pollen on the frons and face ; occipital upper border in the 
 female also pollinose, only narrowly shining near the eyes ; lower 
 orbits whitish grey ; vertical triangle of the male small, yellowish 
 pollinose, with dark hairs ; orbital border almost bare ; eyes in the 
 male yellowish red, opaque below, purplish shining above, and there 
 with broader facets and long brown hairs ; in the female the eyes 
 are entirely opaque with very short hairs above ; the dark bands 
 are narrow and show a tendency to break up into spots, chiefly 
 below, where they are attenuated ; there are also some black spots 
 on the hind portion ; in the male the line of contact of the eyes is 
 longer than the frontal triangle and twice as long as the vertical 
 triangle ; frontal triangle of the male rather small and convex, 
 densely yellowish pollinose, clothed with long dark hairs, which 
 become paler near the antennae ; there is sometimes a trace of a 
 black median line, which becomes yellow above the base of the 
 
90 SYRPHIDJE. 
 
 antennae ; lunula yellow ; frons of female wholly pollinose, even on 
 the ocelli ; clothed with dense yellowish hair, blackish only in a 
 band before the ocelli, the transverse black band wanting or less 
 distinct ; a thin black middle line in front, which becomes yellow 
 above the antennae ; antenna placed on a less prominent tubercle, 
 yellow, the third joint elongate-oval, with a black upper border ; 
 arista bare, long, yellow. Face densely yellowish pollinose, with 
 }^ellovvish hairs on the sides ; the tubercle rounded, shining yellow, 
 and hollowed below the antennae ; on each side of the tubercle there 
 is a shining black line ; peristoma narrow, shining black, with white 
 hairs behind, reddish before the edges of the buccal cavity; opening 
 of the buccal cavity broad, proboscis black. Thorax black, yellowish- 
 grey pollinose, with sharply defined black stripes in both sexes ; 
 these stripes are rather shining aeneous, not margined with black, 
 the two lateral not broader than the middle ones and attenuated 
 behind ; hairs yellowish, dense, and long ; pleurae grey, with long 
 grey or yellowish hairs. Squamulae brownish yellow, with a whitish 
 fringe ; halteres \vhitish. Scutellum yellowish, transparent, shining 
 aeneous above, darkened at the base, yellowish pilose, with a trans- 
 verse band of black hairs near the base. Abdomen yellow, and 
 yellowish-grey pilose ; first segment grey ; second with a narrow 
 even black fore border and a broader one on the hind margin, which 
 is attenuated at the sides and triangularly broadened in the middle, 
 where it unites with the fore border, the yellow band being there- 
 fore interrupted in the middle ; third and fourth segments similarly 
 coloured, but the yellow bands narrower, chiefly in the female, and 
 besides with a complete transverse whitish band near the fore 
 border; the hind borders of the black bands are shining, chiefly 
 near the middle ; the abdomen is more yellow in the male than in 
 the female ; venter yellowish, blackened at the base and at the 
 tip ; genitalia of the male shining black. Legs reddish, the tibiae 
 pale yellowish, the femora darker, those of the hind pair blackened 
 at the base and above ; hairs pale ; hind femora thin ; tarsi 
 darkened at the apex. Wings hyaline, not pubescent, with typical 
 venation ; marginal cell with a short stalk ; stigma pale yellow, 
 black at the base and more narrowly at the end ; upper fore 
 corner of the second basal cell roundly dilated ; small cross-vein a 
 little beyond the middle of the discal cell ; this last cell appendi- 
 culated. 
 
 Type <$ and type $ , and four additional specimens from Nyasa- 
 land, Fort Johnston, 2,000 ft., dry season, vi. 1910, collected by 
 Dr. A. H. Barclay, in whose honour the species is named ; besides 
 a female from Lake Chilwa, Nyasaland, iv. 1910 (Dr. H. S. 
 Stannus^. 
 
 91. Eristalodes taeniops, Wiedemann (1818). 
 
 A Mediterranean species, widely spread over the Ethiopian 
 Region, and readily distinguished by its five dark bands on the 
 eyes and by the very indistinct thoracic stripes. 
 
ERISTALODES. 91 
 
 Six specimens from Nairobi, 3. v. 1911; one from British East 
 Africa, Kenyamkago {Dr. J. Pugh], and another from Marsabit 
 (JR. J. Stordy} ; a couple from Durban (F. Muir) ; a male 
 specimen from Stellenbosch, Cape Colony, xi. 1904 ( G. A. .. 
 
 Marshall ). 
 
 92. Eristalodes fuscicornis, KarscJi (1887). 
 
 Characterised by having only three broad bands on the eyes and 
 the face almost entirely black, the lateral black stripes being 
 therefore indistinct. 
 
 Karsch has described the male alone from Pungo-Andongo. In 
 the collection there is a single female specimen, which agrees well 
 enough in its general characters. It measures 14 mm. in length; 
 the frons is grev pollinose and dark-haired ; the vertex and a broad 
 band just above the antenna? are black ; there is also a broad dull 
 black band on the middle of the frons. Abdomen entirely black, 
 the first segment whitish cinereous ; the second with an indistinct 
 trace of the yellow band ; third and fourth entirely black, without 
 white bands. 
 
 A single female specimen from British East Africa, Mt. Kenia, 
 W. side, 6,500 ft., 20. ii. 1911 (S. A. Neave). 
 
 93. Eristalodes seychellarum, sp. n. 
 
 $ . Length of the body 12 mm. 
 
 An entirely black species, adorned with bluish reflexions, and 
 having a very broad black band on each side of the facial tubercle. 
 This species seems to be allied to the Oriental E. nigra, Wied. 
 
 Head black, asneous on the frons and bluish on the face ; eyes 
 almost entirely bare, with only a few very short hairs on the upper 
 corner ; the eyes are red, with four regular dark stripes and with a 
 few dark spots interposed, more numerous behind ; in life they are 
 striped dull red and orange (note by the collector) ; frons shining, 
 black-haired, with grey pollen only towards the sides ; lunula 
 yellow ; face with strong bluish reflexions, very shining, covered 
 with short whitish hairs on the sides ; the grey pollen is distinct 
 on the sides, on the under border, and on two small lines on the 
 sides of the tubercle, the two stripes being also very broad, rect- 
 angular, and almost twice as broad as the middle stripe ; peristoma 
 shining, not produced; antenna? placed on a slightly prominent 
 tubercle, entirely brownish black, the elongate third joint having 
 only a small dark yellow spot below ; arista long, bare, brown ; 
 vertical and occipital hairs black. Thorax dark-haired, with long 
 black hairs on the sides, grey pollinose on the back, with four well- 
 developed dull black stripes, the two middle ones evanescent 
 behind and there somewhat shining, the two lateral ones interrupted 
 at the suture and attenuated behind ; pleurae shining bluish, grey 
 pollinose below, and black-haired. Scutellum entirely shining 
 bluish black and black pilose. Squamulse blackish brown, with a 
 
92 SYBPH1DJK. 
 
 dark fringe ; halteres with a yellow stalk and darker knob. Abdo- 
 men entirely shining blackish aeneous, very shortly dark pilose, only 
 on the sides with longer and paler hairs ; the fore halves of the 
 segments are slightly greyish pollinose, while behind there is an 
 indistinct transverse dull black band, nearer to the hind border and 
 produced forwards towards the middle. Venter black and with 
 black hairs. Legs black, with pale and black hairs ; hind femora 
 
 Fig. 15. Eristalodes seychellarum, sp. n. $. 
 
 shining, thin ; all the tibiae yellowish near the base, the anterior 
 four more broadly ; tarsi black, the first joint yellowish ; claws 
 black, with reddish base. Wings distinctly infuscated, with black 
 veins, the vena spuria being also darker than usual ; stigmal 
 spot very elongate, entirely black ; the venation is normal, the 
 discal cell not append iculate, and the second basal cell not dilated 
 towards its upper corner. 
 
 Type $ , a single specimen from Mahe, Seychelles. 
 
 Genus 16. ERISTALIS, Eondani (1844). 
 The following species are represented in the collection : 
 
 1 (2) Eyes with two "bands of brown hairs; 
 
 hind femora thin ; wings without any 
 pubescence and with the kink in the 
 third vein rounded ................ tenax, L. 
 
 2 (1) Eyes with unicolorous hairs ; hind 
 
 femora much thickened ; wings minutely 
 pubescent and the kink in the third 
 vein rather angular. 
 
 3 (4) Wings unspotted ; facial tubercle black ; 
 
 hind femora with the basal half bright 
 
 yellow ............................ daw/ops, Wiecl. 
 
 4 (3') Wings with an apicpl brown spot ; facial 
 
 tubercle reddish ; hind femora wholly 
 
 brown ............................ meromacriformts, .p. n. 
 
KRTSTALIS. 93 
 
 94. Eristalis tenax. Linne (1758). 
 
 This almost cosmopolitan species is recognisable at once by the 
 two bands of brown hairs on the eyes. 
 
 It seems to be not common in South Africa, perhaps because it 
 has only recently been introduced. Two female specimens only 
 from Stellenbosch, Cape Colony, xi. 1904 (G. A. K. Marshall). 
 
 95. Eristalis dasyops, Wiedemann (1819). 
 
 In general aspect very like the preceding, but differing in the 
 unicolorous hairs of the eyes and the yellow hind femora, which 
 are black towards the apex. 
 
 This species is perhaps a Protylocera with pubescent eyes, the 
 shape of the head and the pale rounded spots on the eyes being 
 the same as in that genus ; besides the wings are pubescent, the 
 marginal cell is short-stalked, and the kink in the third vein is 
 angular and provided with the rudiment of an appendix (v. the 
 notes in my paper on Fea's Syrphids, p. 432). The present species 
 is probably congeneric with the following, but not with the 
 preceding. 
 
 A female specimen from Obuasi, Ashanti, 31. vii. 1907 (Dr. W. 
 31. Graham). 
 
 96. Eristalis meromacriformis, sp. n. 
 
 c? . Length of the body 14 mm. 
 
 Very distinct from any other species on account of the apical 
 brown spots on the wings. This species shows a great resemblance 
 to the American genus Meromacnis in the pubescence and pattern 
 on the wings, in the eyes of the male, in the hind femora, and in 
 shape of the abdomen ; but the eyes are hairy and the face has a 
 well-developed tubercle. I place it for the present in Eristalis. 
 Blilesia 0iact*/aa,Macqtiart ( 1S49), stated to be from Africa, which 
 was in my catalogue placed in Jleromacrus, while in Kertesz's it is 
 left in Jllilcsia, is without any doubt the American ^Leromacnis 
 cruciatr, Wied. ; the present species, although showing a rather 
 similar pattern on the wings, is very different, owing to the want 
 of any golden-yellow marking. 
 
 Head black, the lower portion of the face and the peristoma 
 reddish ; frontal triangle of the male very elongate, attenuated in 
 front, dark grey pollinose, and with pale hairs ; eyes dark red, 
 slightly shining towards the middle, entirely clothed with whitish 
 hairs, without any distinct pattern and also without the pale spots 
 of Protylocera ; they are approximated at a point midway between 
 the antennae and the vertex, but not in contact ; frontal triangle 
 grey pollinose, elongate, with long pale hairs directed forwards ; 
 lunula reddish; antenna? placed on a tubercle as in Protylocira, 
 the basal joints reddish, the third brownish, elongate-oval, with a 
 long and bare, dark reddish arista ; face reddish, blackish above 
 and on the sides, where it is grey tomentose and clothed with 
 sparse and short pale hairs; it is deeply excavated below the 
 
01 SYRPIIID.*:. 
 
 antennae, with a rounded prominent tubercle, which is united below 
 with the epistoma ; peristoma narrow, not produced ; lower posterior 
 orbits white pollinose and white pilose ; opening of the buccal cavity 
 broad, ovate. Thorax black, dark pollinose and with very short pale 
 hairs on the back, without distinct pattern, reddish on the humeri 
 and on the pro- and mesopleura ; scutellum dark reddish, with 
 short pale hairs. Squamulae pellucid, with a whitish fringe ; 
 halteres whitish. Abdomen elongate, almost cylindrical, gradually 
 attenuated behind; it is entirely black, dark grey pollinose, 
 brownish towards the end, with short grey hairs ; second and third 
 segments with a narrow yellow hind border ; venter grey ; genitalia 
 rounded, brownish red. The four front legs, including the coxae, 
 dark red, with black grey-pollinose tibiae and tarsi ; hind legs with 
 more blackish coxae and femora, which are greatly swollen and 
 bear black bristles, but are not toothed below ; hind tibiae curved, 
 reddish, the tarsi black. All the hairs on the legs are pale. Wings 
 narrow, greyish hyaline, very thinly pubescent ; costal cell yellow- 
 ish ; the black spot filling the ends of the marginal and submarginal 
 cells, not passing the third longitudinal vein, but touching the costa 
 in front and reaching the kink in the third vein ; marginal cell 
 shortly stalked ; kink in the third vein narrow and triangular, but 
 its fore branch straighter and more perpendicular than the hind 
 one ; small cross-vein curved and placed a little beyond the middle 
 of the discal cell ; vena spuria chitinized ; outer lower corner of the 
 discal cell rounded, not appendiculate ; second basal cell not 
 dilated at the end above ; anal cell dilated towards its middle. 
 
 Type c? , a single rather old and badly preserved specimen from 
 South Africa (R. W. Plant}. 
 
 Genus 17. HELOPHILUS, Meigen (1803). 
 Subgenus MESEMBEIUS, Rondani (1857). 
 
 All the species in the collection belong to this subgenus, which 
 is very characteristic of the Ethiopian fauna, and they all have the 
 globiferous hairs at the base of the hind tarsi. They can be dis- 
 tinguished as follows : 
 
 1 (10) Thorax with very sliarply defined black and 
 
 yellow stride:; on the back. 
 
 2 (5) Hind femora of the male without a brush- 
 
 like tuft of black hairs on the inner side 
 near the base. 
 
 3 (4) Middle tibiae of the male with the long- 
 
 yellow pubescence present also on the 
 anterior side and extending only to the 
 first joint of the tarsi; hind tibiae black; 
 first yellow abdominal band of the female 
 interrupted in the middle capensis, Macq. 
 
 4 (3) Middle tibiae of the male with the yellow 
 
 pubescence only on the posterior side and 
 extending- to the four first joints of the 
 
TIELOPHTLUS. 95 
 
 tarsi ; hind tibiae broadly yellow towards 
 the base ; first yellow abdominal band of 
 
 the female entire laffojws, Loew. 
 
 6 (2) Hind femora of the male with a brush -like 
 tuft of dense black hairs oa the inner 
 side near the base. 
 
 6 (9) Middle yellow stripe on the thorax wanting 
 
 or very narrow ; abdomen of the female 
 with the black hind borders of the seg- 
 ments well developed. 
 
 7 (8) Founh abdominal segment of the male 
 
 with a small furrow on each side, which 
 is densely covered with golden hairs 
 forming short longitudinal stripes j middle 
 yellow thoracic stripe wanting striffi/atus, Bezzi. 
 
 8 (7) Fourth abdominal segment with the usual 
 
 pubescence, without any furrows ; middle 
 
 thoracic stripe very narrow, but distinct., minor, sp. u. 
 
 9 (6) Middle yellow thoracic stripe very broad ; 
 
 hind portion of the abdominal segments 
 
 grey, without a black border africanus, Verr. 
 
 10 (1) Thorax on the back with less distinct 
 
 stripes or even not striped at all. 
 
 11 (12) ScateUum yellow; frunt tarsi reddish; 
 
 wings greyish hyaline ; eyes of the male 
 touching ;* tibiae with long black hairs, 
 those of the bind legs with a strong 
 
 tubercle inyratus, Loew. 
 
 12(11) Scutellum and front tarsi black; wings 
 strongly iuiuscatedand with purplish-blue 
 reflexions. 
 
 13 (14) Scutellum black, with a yellowish hind 
 
 border; abdomen in great part reddish, 
 with black markings ; eyes of the male a 
 little separated; tibiae with short and 
 partly pale-coloured hairs, those of the 
 hind legs without tubercle ci/anipennis, pp. n. 
 
 14 (13) Scutellum and abdomen entirely black. . . . mono, sp. n. 
 
 97. H. (Mesembrms) capensis, Macquart (1842). 
 
 I think that the present species is possibly the same as the coffer 
 of Loew, because it is the commonest of all the South African 
 species. 
 
 A couple of specimens from Blantvre, Xyasaland, 23-25. iv. 
 1910 (Dr. J. E. S. Old); a couple from Durban (F. Mvt'r) ; 
 three males from Kenyamkago, British East Africa (Dr. J. Pugh); 
 some specimens from Chinteehi, Nyasaland (Dr. FT, S. Stannvt) ; 
 a male from Uganda (Capt. E. D. W. Greig); N. Nyasa, near 
 mouth of R. Rumpl, 12. v. (Dr. J. B. Davey). 
 
 98. H. (Mesembrius) lagopus, Loew (1860). 
 
 A male from Salisbury, S. Ehodesia (G. A. K. Marshall); 
 a female from Purhan, i. 1903 ( F. J/W/-Y 
 
96 SYRPHID.E. 
 
 99. H. (Mesembrius) strigilatus, Jlrzzi (1912). 
 
 Recently described by me from French Congo and Portuguese 
 Guinea. 
 
 There are in the collection two female specimens from Busoga, 
 Uganda, iii. 1906 (Dr. A. D. P. Hodycs), and a female from 
 Obuasi, Ashanti (Dr. W. M. Graham}, which I refer with some 
 doubt to this species. 
 
 100. H. (Mesembrius) minor, sp. n. 
 
 c? 2 length of the body 11 '5-1 2 mm. 
 
 A small species, nearly allied to the preceding one, but distin- 
 guished by the simple last abdominal segment of the male, bv the 
 abdominal pattern of the female, and in both sexes by the narrow 
 median pale line on the thorax. 
 
 Head black, covered with dense yellowish pollen, the ocellar 
 triangle alone being shining black ; all the hairs are yellowish ; 
 antennal tubercle and middle line of the face also shining black ; 
 antenna entirely black, the third joint rounded, with a dark 
 reddish-brown arista ; eyes brown, unicolorous, bare, touching 
 along a short line in the male, separated as usual in the female ; 
 proboscis black. Thorax yellowish grey on the back, with three 
 black stripes, the middle one abbreviated behind and divided by a 
 very narrow median pale line ; pleura? grey, more densely pollinose 
 towards the middle ; scutellum yellowish, darkened at the base. 
 All the hairs on the thorax are pale. Halteres whitish ; squamulse 
 yellowish, with a yellowish fringe. Abdomen reddish yellow, the 
 lateral spots on the second segment in the male more yellow than 
 in the female ; first segment black ; second with the usual 
 A-shaped median black mark and with a reddish hind border ; 
 third segment with a similar median mark, which, however, is not 
 dilated forwards and is more grey behind ; fourth grey, yellowish 
 on the sides and behind, with a dull black spot towards the middle 
 of fore portion ; genitalia black ; belly pale yellow ; all the hairs 
 long and pale. In the female the first segment is grey, yellowish 
 towards the sides ; the yellow band on the second is not interrupted 
 in the middle ; the third and fourth are grey, yellowish on the 
 sides, with an arched transverse black band ; the fifth is triangular, 
 grey at the base, shining black at the apex. Legs black, grey 
 pollinose, and with pale hairs ; tips of the femora, tibiae, and basal 
 joints of tarsi yellow, in the male more broadly, the front tarsi 
 being even entirely yellow ; hind femora of the male thickened 
 with an external yellow fringe, provided below near the base with 
 a brush-like tuft of dense black and brown hairs ; before the end 
 there is a not very prominent black-haired tubercle and on the out- 
 side in the apical third there is an elongate, deep, shining furrow ; 
 hind tibiaB curved, black on the apical half ; hind tarsi entirely 
 black. Wings greyish hyaline, with a faint yellowish tinge near the 
 base ; the veins are black externally ; discal cell not appendiculate ; 
 kink in the third vein not very deep, but broad and rounded. 
 
1LELOPIIILUS. 97 
 
 Type c? from Chintechi, Nyasaland (Dr. H. S. Stannus), and 
 an additional specimen from North Nyasa, Songwe lliver, 17. ix. 
 1909 (Dr. J. IB. Da vet/)'; type $ and another specimen from N. 
 of Mount Kenia, near Crater Lake, 5,700 ft., 15. ii. 1911 (T. J. 
 Anderson). 
 
 101. H. (Mesembrius) africanus, Verrall (1898). 
 
 A single female specimen from British East Africa, Makindu, 
 3,300 ft., 5-7. iv. 1911 (S. A. Neave), which agrees very well with 
 the description of this species from Aden, but also with that of 
 tenegalensis, Macq. 
 
 102. H. (Mesembrius) ingratus, Loeio (1858). 
 
 A very distinct species, with entirely black legs. Front tarsi of 
 the male short and broad, yellow ; the first joint bears on the out- 
 side a tuft of black hairs, which are like those of the tibiae ; the 
 last joint has two very distinct black rounded spots. Hind tibiae 
 with a prominent tubercle on the last third ; hind tarsi black, the 
 first joint rather swollen. 
 
 The present species shows a great many characters of the genus 
 Prionot&myia, Bigot, which is therefore probably synonymous 
 with Mesembriut *. Two males from N.E. side of Lake Albert 
 Edward, Uganda, 1906 (Dr. A. D. P. Hodges) ; a couple from 
 Durban, 26. x. 1902 (F. Bluir) ; some additional specimens of both 
 sexes from Uganda, various localities (Dr. R. van Someren). 
 
 103. H. (Mesembrius) cyanipennis, sp. n. 
 
 c? . Length of the body 10-12 mm. 
 
 A very distinct black species, with the abdomen mainly reddish and 
 with infuscated wings, which have very strong bluish reflexions. 
 
 Head black, the frons with black, the occiput with yellowish, 
 and the face with white, hair ; face with a faint whitish pollen, 
 the median black stripe being therefore indistinct; antennae 
 entirely black, the third joint rounded ; face with a distinct but 
 not very prominent tubercle ; eyes bare, unicolorous, in the malo 
 approximated but not touching; frons of female shining blaek, 
 with an indistinct transverse greyish band in the middle. Thorax 
 and scutellum entirely black, slightly shining, but the scutellum 
 reddish along the hind border ; the hair is short and grey, longer 
 and paler on the pleurae ; the thorax shows no distinct stripes on 
 the back, but two parallel rather distinct longitudinal furrows. 
 Squamulae pure white and with a white fringe ; haltares yellowish. 
 Abdomen of male more red than yellow ; lirst segment black ; 
 
 * Since this was written Dr. Speiser has shown that the synonymy here 
 suggested is correct. 
 
 II 
 
08 SYHPHTD.E. 
 
 second vvitli a broad black band, which does not reach the hind 
 border, is dilated fowards, and ba's on each side a yellowish spot ; 
 third entirely red, with a small black basal spot ; fourth red ; 
 genitalia and venter shining dark red ; the hair is long, yellowish 
 or reddish. In the female the colouring of the abdomen seems to 
 be variable ; in the type it is very like that of the male, the black 
 stripe of the second segment being dilated on the hind border ; 
 most of the other specimens have the band of the second segment 
 extended to the sides towards the hind border, the third and fourth 
 similarly marked, and the fifth entirely black. Legs black, with the 
 base of the tibiae and tarsi more or less yellow, the middle tibiae of 
 the female often entirely yellow. Hind femora equally thickened 
 in both sexes, those of the male simple, without the basal brush ; 
 hind tibiae simple, without a tubercle ; middle tibiae of the male 
 with a posterior apical tuft composed of 5-7 strong erect hairs. 
 Wings more or less darkened, with very characteristic strong 
 bluish reflexions ; veins black to the base ; kink in the third dee]) 
 and narrow ; lower corner of the discal cell with a short but strong 
 stump. 
 
 Type c? from Entebbe, Uganda, 1-21. ix. 1911 (S. A. Neave\ 
 and an additional specimen of smaller size from Obuasi, Ashanti, 
 20. v. 1907 (Dr. W. M. Graham) ; 1ype. $ and an additional 
 specimen, viii. 1906, same locality and collector ; four other speci- 
 mens of the variety with the apex of the abdomen black, April to 
 August, same locality and collector. 
 
 104. H. (Mesembrius) morio, sp. n. 
 
 $ . Length of the body 12-13 mm. 
 
 Possibly only a dark variety of the preceding ; distinguish by 
 its entirely black scutellum and abdomen. 
 
 Head and antennae as in M. cyaniprnnis, but the basal joints 
 and the lunula are somewhat yellowish. The thorax is very like, 
 but the pleurae are darker and with darker pubescence. Abdomen 
 entirely black, shining, even on the belly ; second segment with a 
 dull black pattern of the usual shape. Legs as in the preceding 
 species ; also the wings, which are even more infuscated towards 
 the middle and more blue. 
 
 Type 5 and an additional specimen from Nguelo, Usamhara, 
 German East Africa. 
 
 Genus 18. MALLOTA, Meigen (1822). 
 
 I here employ this genus in its widest sense, placing in it 
 Helopliilus extremus, Loew, and my species, M. (enigma. It 
 differs from Mesembrius in having the eyes densely pilose and the 
 face concave below the antennae, with a distinct tubercle ; and from 
 Protylocera by the hairy eyes and the open marginal cell. The 
 single kuown male has the eyes separated. 
 
M ALLOT A. i> 
 
 lili 11 ail femora moderately thickened; yellow 
 
 baud of the 2nd abdominal segment entire. 
 2 (3) Third abdominal segment with a broad basal 
 
 vellow baud and the fourth with a narrower 
 
 one ; hind borders of segments 2 to 4 
 
 with a yellow line; tar.-i yellow; eyes 
 
 with long hair ; marginal cell widely 
 
 open *. .cemyma, Bezzi. 
 
 o ( -2 ) Third abdominal segment wholly black and 
 
 no yellow line at the hind border of the 
 
 segment* ; tarsi dark brown ; eyes with 
 
 short hair; marginal cell narrowly open . . e.itrcma, Loew. 
 4 (1) Hind femora exceedingly thick ; yellow band 
 
 of the second segment broadly interrupted 
 
 in the middle pachymera, sp. u. 
 
 Of the species extrema I have not seen any specimens, but is 
 included here for comparison. 
 
 105. Mallota sonigma, Bezzi (1912). 
 
 Recently described by me from the Island of Fernando Po. 
 There is a single female from Chirinda Forest, x. 1 !)()."> \ G. A. K. 
 J/r7/-.v //i7//), which agrees well enough with the typ;?. The black 
 spot at the base of all the femora is present, as well as in the two 
 other species. 
 
 103. Mallota pachymera, sp. n. 
 
 c? $ Length of the body in the male 10 mm. ; in the female 
 13'5 mm. 
 
 Easily recognised by the enormously thickened hind femora and 
 by the abdominal pattern ; notwithstanding the difference in the 
 size, I believe that the two specimens belong to the same species. 
 Head shining black, but covered with long and dense greyish hair; 
 sides of the face grey pollinose, and therefore there is a broad black 
 band in the middle ; antenna! tubercle prominent ; face hollowed 
 below the antennae and with a broad rounded tubercle ; lunula 
 yellow ; eves with no distinct spots, clothed with long and dense 
 grey hair ; eyes of the male approximated on the middle of the 
 irons, but not touching; antennae black, the basal joints reddish, 
 the third ovate, twice as long as the two others, with a bare, dark 
 yellowish arista. Back of the thorax grey, not striped, clothed 
 with rather long greyish hair, longer on the pleurae ; scutellum 
 yellow, with long hair. Squamula) lurid, with a grey fringe ; 
 halteres whitish. Abdomen shining black, clothed with rather 
 long grey hair, shorter in the female, black at the hind border of 
 the segments ; the first segment is yellowish-grey with a basal 
 black spot below the scutellum; second with two indistinct and 
 narrow yellow spots on the sides, forming an interrupted band ; 
 other segments only a little yellowish at the sides and on the hind 
 border; in the female with a narrow ha sal pollinose hand; genitalia 
 
 if 2 
 
100 SYBPHIDJE. 
 
 blackish ; venter shining yellow. The four anterior legs are almost 
 entirely pale yellow, the femora darkened on the apical half, more 
 distinctly so in the male ; hind femora enormously thickened in 
 both sexes, pale yellow interiorly, blackened towards the middle 
 exteriorly, with some whitish hairs above and some black ones 
 below ; hind tibiae arched and with a short fringe ; tarsi yellow. 
 The black basal spot of the femora is very distinct. Wings 
 hyaline, bare, unspotted ; veins in great part yellow ; marginal cell 
 broadly open ; loop of the third vein deep and narrow, not appen- 
 diculated ; lower corner of discal cell with a short stump. 
 
 Type $ and type $ , a couple of specimens from the Cape of 
 Good Hope. 
 
 Genus 19. MERODON, Mel gen (1803). 
 
 Of this characteristic Mediterranean genus there are only a few 
 Ethiopian species known ; the collection comprises the three 
 following : 
 
 1 (2) Face retreating below, not at all prominent 
 
 towards the buccal cavity ; lower corner 
 
 of the disca) cell with a short stump . . . plamfncjes, sp. n. 
 
 2 (1) Face even more prominent than usual at the 
 
 buccal cavity ; lower corner of the discal 
 cell not appendiculated. 
 
 3 (4) Abdomen at the base with an orange ppot on 
 
 each side of the second segment ; an tenure 
 
 and tarsi entirely black mehnwcerus, sp. n. 
 
 4 (3) Abdomen at the base entirely black; antennae 
 
 and tai\-i reddish nasiats, Bezzi. 
 
 107. Merodon planifacies, sp. n. 
 
 <3 . Length of the body 10 mm. 
 
 A rather aberrant species, very distinct from any other on 
 account of the shape of the face; in general aspect not much 
 differing from M. const ans, Rossi, but the hind trochanters and 
 the hind tibiae are wholly simple. 
 
 Head black, densely clothed with grey hair, the vertical tri- 
 angle alone being shining and the hairs around ocelli dark ; eyes 
 touching for a considerable distance, covered with w r hitish hair, 
 which is dark on the upper part; frontal triangle not very pro- 
 minent, densely clothed with whitish hair; face very short and 
 entirely flat, a little retreating, not prominent at the buccal 
 cavity, distinctly shorter than the eyes ; antennae short, reddish, 
 the third joint rectangular and of a pale yellowish colour ; arista 
 bare, yellowish; opening of the buccal cavity very small; pro- 
 boscis short and concealed. Dorsum of thorax clothed with dense 
 and rather long grey hair; it is of a shining aeneous colour, 
 and has three broad purplish-black bands, the middle one being 
 abbreviated behind and divided by a thin aeneous line, while 
 
MEEODOX. \ **"* : ': : '. i ( 
 
 the lateral ones are abbreviated in front and almost interrupted 
 towards the suture; pleurae shining aeneous, with grey hair; 
 scutelluni entirely blackish aeneous, pale-haired. Squamulae lurid, 
 with a yellowish fringe. Abdomen broad and rounded at the 
 apex, not conical ; it is shining dark tawny with some bluish 
 reflexions ; first segment very small and blackish ; second with 
 n narrow black fore border, not reaching the sides, an obsolete 
 median black band and two orange lateral spots, forming an 
 interrupted band; third and fourth with a transverse yellowish 
 pellucid median band, interrupted towards the middle, that of 
 the third paler, the hair is whitish, pure white on the transverse 
 bands, but that on the orange spots is orange; genitalia large 
 and rounded, but not prominent, black ; venter reddish yellow, 
 clothed with long pale hair, like that on the sides. Coxae and 
 femora shining black, narrowly yellow at the apex, with grey 
 hair ; hind femora moderately thickened, with a short but strong 
 pre-apical tooth ; hind trochanters rounded, simple ; tibiae black, 
 with the basal third yellow, whitish pilose, those of the hind 
 pair without any apical tooth ; tarsi brownish yellow, the last 
 joint black. Wings grey, unspotted, with typical venation, but 
 the clisi-al cell broader and its inferior corner provided with a short 
 but distinct stump. 
 
 Type <3 , a single specimen from Durban, 21. x. 1902 (F. Muir). 
 
 108. Merodon melanocerus, sp. n. 
 
 $ . Length of the body 12 mm. 
 
 A species very like gnecus, Loew, and probably belonging to the 
 armipes-grorip of Dr. Sack's Monograph, but distinguished by the 
 entirely black antenna? ; perhaps, however, more allied to seyclum 
 and belonging to the m cent inn-group. 
 
 Frons aeneous black, the ocellar portion and a median longitudinal 
 line being shining, the sides covered with grey pollen ; face shining 
 black, with sparse white hair ; edge of buccal cavity very pro- 
 minent ; antennas black, the third joint attenuated at the apex, 
 twice as long as broad ; proboscis black ; eyes with grey hair. Thorax 
 shining black, with short grey hair and no distinct bands. Scutelluni 
 entirely black, pale-haired; squaniulae white, with a yellowish fringe. 
 Abdomen shining black as in greens ; the bands of white pollen on 
 the second and third segments are straight and narrowly interrupted 
 towards the middle, that of the fourth is triangularly produced 
 forwards in the middle ; the sides are clothed with dense yellow 
 hair ; the hind borders of second to fourth are yellowish with white 
 margins. Legs simple, dull black, with yellow knees. Wings 
 greyish hyaline, with typical venation ; lower angle of the discal 
 cell rounded, not appendiculatecl. 
 
 Type $ , a single specimen from Piet Retief, Transvaal, 25. x. 
 1903 (A. Crawthay). 
 
I'Jli S-l'ltl'lllDJil. 
 
 109. Merodon nasicus, Bezzi (1914). 
 
 Very near M. funestus, but belonging to the maemum-group, 
 distinguished by the upper margin of the buccal cavity being very 
 much produced and elevated, by the abdomen being entirely black, 
 and by the very long frons, the face being therefore very short. 
 Described by me from Erythraea in the Collection of the Hungarian 
 Museum; there is a single female specimen, only 10 mm. in length, 
 Avith the 4th abdominal segment lacking the broad hind grey 
 border, from British Eash Africa, Xjovo, "in the clutches of a 
 small Asilid" (A. J. Cholmley). In the year 1908 1 wrongly 
 recorded specimens of this species from Erythnm as M.fuiustus. 
 
 Subfamily IV. XYLOTIN.E. 
 Genus 20. CHASMOMMA, nov. 
 
 A genus allied to Tropidia, Htfyiolepta, and Xylota, and like the 
 iirst connecting the Merodontinse with the Xylotinae ; it is to be 
 placed near Xylota, no species of which has yet been found in the 
 Ethiopian Region. 
 
 The essential distinguishing characters of this ne\v genus are : 
 face tuberculate in both sexes ; eyes of male widely separate ; hind 
 femora strongly incrassate, bristly below, but without tooth-like 
 process ; third vein with a deep kink, but not as in the Erisfttlia- 
 group. 
 
 There are some other genera with dichoptic males, which to a 
 certain extent seem to be allied to Chasmomma, viz. the Japanese 
 Kirimi/ia, Bigot, which, however, seems to be more nearly related 
 to HelopJii/ns, and in which the face is not tuberculate; the North- 
 American Chalconiyia, Williston, which has a straight third vein 
 and no tubercle on the face; and the Chilian Stilbosoma, Philippi, 
 which has also a straight third vein and bidentate hind femora. 
 The new genus may be characterised as follows : 
 Body bare, black without any yellow markings, but with velvety 
 black bands on the abdomen. Head semiglobular. rather broader 
 than the thorax ; frons not prominent, rather narrow, that of the 
 male only a little narrower than in the female ; antenna! tubercle 
 rather prominent; face long, perpendicular, in both sexes with 
 a prominent tubercle in the centre ; margin of buccal cavity not 
 prominent; jowls very narrow ; opening of buccal cavity horizontal, 
 elongate; proboscis short; eyes bare, separated in both s?xes ; an- 
 tennse rather short, reaching only to the median tubercle, the third 
 joint elongate, one and a half times as long as broad, rounded at 
 tip, not broadened ; arista bare, as long as the antennae, inserted 
 near the base of the joint. Thorax of normal shape, punctulate, 
 bare ; scutellum the same, but strongly margined behind. Abdo- 
 men with almost parallel sides, bare ; male genitalia asymmetrically 
 placed. Legs normal, those of the hind pair very elongate, coxae 
 and trochanters simple ; hind femora greatly thickened, but not 
 toothed and only with some bristles below near the end as in A'ifluta 
 
C1LVSMOA1MA. 103 
 
 hind tibia} arched, much shorter than the femora ; tarsi simple. 
 Wings with the marginal cell broadly open ; tlu third vein with a 
 deep but broad kink, exactly as in Tropidia fasciata ; middle cross- 
 vein just above the middle of the discal cell; vena spuria strong, 
 but not entirely chitinised ; distal extremity of first posterior cell 
 shaped as in Xylota ; lower corner of the discal cell rounded and 
 without an appendix ; all the veins bare. 
 Type : the following new species. 
 
 110. Chasmomina femoratum, sp. n. - 
 
 3 $ . Length of the body 7-8 mm. 
 
 An interesting insect, strongly resembling Xylota femorata, L., 
 but less than half its size. 
 
 Head shining aeneous black, the occiput and trons in both sexes 
 as far as the middle velvet v black and dull ; face with a faint white 
 
 Fig. 16. Cliajmomma feinomtnm, sp. n. 9. X 4}. 
 
 pollen, but the median tubercle shining black ; frons and sides of 
 face bearing very thin and rather long greyish hairs ; occipital 
 border narrowly argenteous behind ; antenna? black, brownish 
 towards the base. Thorax wholly black, somewhat shining, with 
 whitish pollen at the sides, on the humeri, and along the transverse 
 suture ; the back is almost bare ; pleura partly whitish pollinose, 
 with rather short pale hair. Sqnanmlae small, white ; halteres 
 whitish. Abdomen bluish black, shining, with the following dull 
 black markings : a rounded spot or. each side of the first segment; 
 second segment with a median longitudinal band, dilated into a 
 transverse band in front and behind, the posterior band being some- 
 what removed from the hind border; third and fourth segments 
 with a similar pattern, which is, however, less distinct especially on 
 the fourth ; these patterns arc more clearly defined and broader in 
 
104 SYRPHIDJ2. 
 
 the male; hind borders narrowly pale; male genitalia shining 
 black ; hair at the base of the abdomen pale ; venter black, the 
 sides and hind margins of the ventral plates yellowish. Legs bare, 
 of a reddish-yellow colour; coxae black, but those of the front 
 pair yellowish ; hind trochanters black ; front tarsi broad, black ; 
 middle tarsi dark brown, but the basal joint partly yellow; hind tarsi 
 
 Fig 1 . 17. Chasmomma femoratum, sp. n. $. 
 Left hind leg from inner side, X 10. 
 
 very strong and broad, intensely black ; hind femora broadly black 
 at end, especially in the female, provided with eight to ten bristles ; 
 hind tibiae intensely black, only the knees yellowish. Wings greyish 
 hyaline, the stigma and subcostal cell blackish ; apical half more or 
 less inf uscated. 
 
 Type c? , an additional specimen, and type $ , from Oshogbo, 
 S. Nigeria, xi. and xii. 1910 (Dr. T. F. Gr. Mayer) ; another male 
 specimen from Ibadan, S. Nigeria (Capt. Leslie). 
 
 Genus 21. SYRITTA, Saint Fargeau et Serville (1825). 
 
 This genus seems to be very abundantly represented in tlie 
 Ethiopian Region, more than 20 species being already described ; 
 the species, however, appear to be very closely allied to each other, 
 and as regardi the coloration of the legs as variable as our 
 S. pipiens. Only a few of these species (such as nigrifemorata, 
 latitarsata, and spinigera) are distinguished by good structural 
 characters, the others are possibly not more than colour- varieties. 
 The " species " in the Collection may be separated as follows : 
 
 ] (4) Vena spuria not distinct, nearly obsolete, 
 other veins of a yellowish colour; hind 
 femora with a very long and strong 
 &pine near the base ; yellow abdominal 
 bands of male not interrupted in the 
 middle; third antennal joint in great 
 part black ; last ventral plate in the male 
 with a tuft of erect bristly hairs in front 
 of the g'enitaiia. 
 
SYEITTA. 105 
 
 2 (3) Hind femora with two or three other 
 
 smaller spines on the basal half beyond 
 
 the very strong basal spine gjtm*<jera f Loew. 
 
 3 (2) Hind femora without any spine beyond 
 
 the basal one aculeipes, Schin. 
 
 4 (1) Vena spuria as distinct as usual and black 
 
 like the other veins ; hind femora without 
 basal spine or with a much shorter one ; 
 yellow abdominal bands of male inter- 
 rupted in the middle, at least the first ; 
 third antennal joint entirely of a pale 
 yellow colour ; ventral tuft less distinct. 
 
 5 (10) Hind tibiae of the male simple ; hind femora 
 
 in both sexes not strongly armed towards 
 the middle. 
 
 6 (7) Hind femora pale yellow with black tips, 
 
 and provided with a rather strong basal 
 spine ; pollen on the thorax in the female 
 more yellow and present also in front of 
 the scutellum bulbus, Walk. 
 
 7 (6) Hind femora dark reddish, brown, or black, 
 
 and without strong basal spine ; thoracic 
 yollen grey or whitish, entirely wanting 
 in front of the scutellum. 
 
 8 (9) Smaller species with hyaline wings; yellow 
 
 colour on the female abdomen more ex- 
 tensive ; hind femora mostly black, ciliated 
 and toothed below on the basal half .... fctsciata, Wied. 
 
 9 (8) Species of larger size, with slightly iufus- 
 
 cated wiugrs ; yellow colour in the female 
 less extensive ; hind femora reddish brown, 
 not ciliate below, and nearly smooth on 
 
 the basal half stigmatica, Loew. 
 
 10 (5) Hind tibiae of male beyond middle with a 
 strong tubercle and a deep notch ; hind 
 femora in both sexes of a reddish colour 
 with a black apex, with the strongest 
 armature towards the middle austeni, sp. n. 
 
 111. Syritta spinigera, Loew (1848). 
 
 This species is the type of a small but well-defined group, the 
 members of which are distinguished by the absence of the vena 
 spuria, a character overlooked by Loew and pointed out for the first 
 time by Thomson. All the other species of this group, and also 
 the following, are perhaps only colour- varieties, such as armipes, 
 Thorns., spinigerelfa, Thorns., vitripennis, Bigot, and perhaps 
 nigricomiii Macq., the latter name having priority ; since the 
 abdomen of spiniyera is often entirely yellow at the end, Loew's 
 name may be a synonym otjlavivcnfris, Macq. 
 
 There are two males and three females from Howick, Natal 
 ( J. P. Creyoe), and a female from Johannesburg, Transvaal (A. J. 
 Choi ml ey}. 
 
10G SY.1U41IDJE. 
 
 112. Syritta aculeipes, Schlner (1868). 
 
 A single male specimen from Nairobi, 5. vi. 1911, appaars to 
 belong to this species, which, with the exception of the hind 
 femora, agrees in all respects with the foregoing. 
 
 113. Syritta bulbus, Walker (1849). 
 
 I believe I have this species before me in the shape of a female 
 from Obuasi, Ashanti, West Africa (Dr. W. J/". G-rahatn), which 
 is readily distinguishable owing to the yellow colour of the thoracic 
 pollen, of the hind femora, and of the abdominal spots. The 
 abdomen, which is wanting in Walker's specimen, is velvety black, 
 shining only on the last segment ; the first segment has a small 
 yellow spot on the sides ; the second and third have broader lateral 
 yellow spots ; the fourth has a yellow spot on the fore corner and 
 a yellow hind border; the hind femora have a very strong basil 
 spine. This specimen agrees very well with the description of 
 6}. bulbuliis, Speiser, 1913. 
 
 I also refer to this species a male from Durban, Natal, 8. ix. 
 1903 (F. Muir), which shows the same coloration of the hin 1 
 femora, and has also a strong basal spine on the latter ; its color- 
 ation, however, is like that of pipiens, and the thoracic tomuntum 
 has the usual colour and disposition. 
 
 111. Syritta fasciata, Wiedemann (1830). 
 
 I am of opinion that the present species is the Ethiopian repre- 
 sentative of xS'. pipiens, L., from which it differs in its sm iller size, 
 paler antennae and face, more extended yellow markings on the 
 abdomen, the second yellow band (i. e. that on the third segment) 
 bjing mostly uninterrupted in the middle in the male and being 
 very broad in the female. The hind femora are black, varying 
 more or less to a reddish brown ; thay are finely toothed beneath 
 and bear long white hairs, which, as in pipiens, appear to be 
 deciduous. Hind trochanters smooth, not so beset with minute 
 spines as in pipiens ; coloration of abdomen and legs apparently 
 variable as in pipiens. 
 
 S. abyssinica, Rondani, from Keren, Abyssinia, of which I have 
 topotypes before me, is only a smaller variety with black hind 
 femora. 
 
 Two males from Durban, Natal (F. Muir\ and one from Sierra 
 Lxme (J. Fox croft). 
 
 115. Syritta stigmatica, Loew (1858). 
 
 I refer with some doubt to this species some specimens which 
 seem to be only a variety of the preceding. They are usually of 
 greater size, the yellow markings on the third abdominal segment 
 of the female arc greatly reduced, the wings are more or less infus- 
 
. SY1UTTA. 107 
 
 eated, the hind legs reddish brown, not eiliated below, and smoother 
 on the basal portion. 
 
 Two tvpical females from Durban. Xatal, a male and a very 
 small female from Howick, Xatal (/". P. Creyoe} ; a male from 
 Basutolanrl (11. ('r<m-.^itii/ . 
 
 It would aj)pear that this species is only a southern form, but I 
 have si-eii specimens from Abyssinia in the collection of the Hun- 
 garian Museum : the speeies which I have assumed to be S. decora, 
 Walk., from the Congo, also belongs here. 
 
 116. Syritta austeni, sp. n. 
 
 J $ . Length of the body 7'o to S'.j mm. 
 
 A species ivadily distinguishable, owing to the shape of the hind 
 tibiae of the male and the armature of the hind femora in both - 
 It is possibly allied to 8. n'ujrifemorata, Maequart, from Mauritius, 
 which shows a similar structure of the hind tibiae, but seems to 
 differ in the armature and coloration of the hind femora and in 
 the shape of face. 
 
 Face and frons bare, covered with white dust on yellowish 
 ground ; jowls very small, shining pale yellow ; face carinate, 
 lightly concave in the middle, with the margin of the buccal cavity 
 prominent ; eyes of the male in contact for a moderate space, with 
 dilated front facets ; vertical triangle very narrow and elongate, 
 shining towards the ocelli, with white dust on the anterior half and 
 clothed with erect grey hairs ; frons of female with short pubes- 
 cence above, shining black round the ocelli ; and elsewhere covered 
 with a white dust, except on a more or less developed black spot 
 above thj antennae and a broad transverse band across the miMle ; 
 occiput black, with a white spot above on each side of the vertical 
 triangle, and with a white-dusted border below next the eyes ; 
 antennae entirely yellow, the third joint rather elongate, rounded 
 at the tip : proboscis black. Thorax dullish black, punctate, with 
 very short pale pubescence, the humeri, the sides down to the 
 suture, and the pleurae with a whitish-grey dust and longer whitish 
 pubescence ; in front of the scutellum there is on each side a white 
 spot. Scutellum more punctate than the remainder of the thorax, 
 but of the same colour, with a few thin short bristles on the 
 margin. Squamuhe and halteres white, the former with a white 
 fringe. Abdomen deep black, shining on the last segment alone, 
 almost bare, with the usual tuft of white hairs at the base and 
 some hairs on the sides of the last segment. In the male the first 
 M'U'mi-ut is black, grey on the sides ; second and third segments 
 yellow, whitish pollinose, with a black median line which is trian- 
 gularly dilated behind, forming a broad hind border ; fourth seg- 
 ment entirely shining black, with a yellow hind border and a basal 
 spot of white dust on each side ; genitalia swollen, black, Avith pale 
 pubescence : venter whitish, with black hind borders to the segments 
 and rather long pubescence at end of the last segment, but without 
 a distinct tuft of erect bristles, and onlv with a few tinv hairs. In 
 
108 
 
 the female the abdomen is black ; but partly shining even on the 
 second and third segments, exhibiting a distinct deep black pattern 
 like that of the male ; second segment on each side with a yellow 
 spot, third with a small one on fore corners ; fourth with a yellow 
 hind border ; venter mostly black, with bands of whitish dust. Four 
 anterior legs entirely yellow, with blackish coxae ; hind trochanters 
 brown and smooth; hind femora as in pipiens, but of a reddish- 
 brown colour, broadly black at end, the basal half bearing some 
 tubercles, of which the stronger and longer are situated towards the 
 middle; these tubercles are more prominent in the male. Hind tibiae 
 arched, reddish brown, with black bases and pale yellow knees ; 
 in the male the hind tibia exhibits a notch with a tubercle on the 
 inner side, for the reception of the long spine on the femur, when 
 closed ; in the female there is no trace of this notch, but the lower 
 apical angle is prolonged into a point which is longer than in the 
 allied species ; the femora of the female have also the strongest 
 spine in the middle; hind tarsi blackish, not dilated. "Wings 
 hyaline, with black veins and a brownish stigma; vena spuria 
 strongly chitinised, black. 
 
 Type $ and type 9 from Freetown, Sierra Leone, 17-26. viii. 
 1899, collected by Mr. E. E. Austen of the British Museum, in 
 whose honour the species is named ; two additional females from 
 Aiyangba, N. Nigeria, 11. i. 1911 (Dr. J. J. Simpson), and another 
 from Zungeru, N. Nigeria, 15. xi. 1910 (Dr. J. W. S. Hacfie}. 
 
 Genus 22. EUMERUS, Meigen (1822). 
 
 This genus seems to be represented in the Ethiopian Region by a 
 great many very different forms, which are often distinguished by 
 important structural characters, chiefly in the male sex. In the 
 collection before me there are no species in which the eyes are 
 separate in the male, although examples of such (as, for instance, 
 argenteus and argyropsis, jacobi and rubifjinosiis) have been 
 described from South Africa. The species can be tabulated as 
 follows : it should be remarked that erythrocerus, unicolor, and 
 vestitus are not represented in the collection, and are included in 
 the table only for the sake of comparison : 
 
 1 (0) Hind femora not thickened, with only 
 a few small spines or bristles to- 
 wards the end; species of very small 
 size, rarely exceeding 5 to 6 mm. 
 in length ; eyes ill the male ap- 
 proaching each other only at one 
 point, not really in contact for any 
 distance ; hind border of scutelluni 
 with very prominent small teeth, 
 which are longer than usual ; third 
 antennal joint broadly red or reddish 
 brown ; ocelli approximate, arranged 
 in an equilateral triangle; male 
 genitalia very large, bilobate, often 
 protruding. 
 
EUMERUS. 109 
 
 2 (5) Wings more or less hyaline, without 
 
 inf uscated markings ; second abdo- 
 minal segment without broad yellow 
 spots ; thorax of male more or less 
 cyaneous, clothed with dense silvery 
 hair. 
 
 3 (4) Second and third abdominal segments 
 
 entirely covered with dense silvery 
 hair, the usual lunulae therefore not 
 visible ; male genitalia protruding 
 in the form of a sphere divided in 
 the middle ; pterostigma dark yel- 
 lowish coloured paula, Hery.-Baz. 
 
 4 (3) Second and third abdominal segments 
 
 with the usual pubescence, the 
 lunuljB being clearly visible ; male 
 genitalia concealed : pterostigma 
 colourless serratus, sp. n. 
 
 5 (2) Wings with distinct fuscous borders 
 
 to the cross-veins; second abdo- 
 minal segment with two broad 
 
 yellow spots maculipennis, sp. n. 
 
 G (1) Hind femora more or less thickened 
 and strongly toothed at the tips ; 
 species of larger size, over 7 mm. 
 in length ; eyes in male always 
 in contact for a more or. less con- 
 siderable distance; male genitalia 
 rounded, not bilobate, concealed. 
 
 7 (12) Hind femora cylindrical at the tips, 
 
 with more or less well-developed 
 spines, but without a prominent 
 denticulate plate, not Merodon-like ; 
 vertical triangle in the male very 
 narrow, frons in the known females 
 also narrow. 
 
 8 (9) Scutellum with hind margin imi- 
 
 colorous, black ; hind femora in 
 the male bearing near the b.ise a 
 very strong black tooth, almost as 
 strong as in Syritta spinigera; ocelli 
 equidistant armipcs, sp. n. 
 
 9 (8) Scutellum with hind margin yellow; 
 
 hind femora in the male without 
 the basal tooth ; anterior ocellus 
 distant from the others. 
 
 10 (11) Body bluish black, very deeply punc- 
 
 tate, almost wrinkled ; legs in great 
 part bhck ; thorax almost bare on 
 the middle of the back, without 
 bands ; antennae small scaber, sp. n. 
 
 11 (10) Body aeneous black, more thinly 
 
 punctate ; legs in great part yellow ; 
 thorax with a golden pubescence 
 and distinct grey stripes; antennae 
 broad " f e a> } Bezzi. 
 
no 
 
 13 (18) 
 
 14 (15) 
 
 15 (14) 
 
 16(17) 
 
 17 (16) 
 
 18 (13) 
 
 19 2i> 
 
 Hind femora greatly thickened, often 
 flattened at the tip and bearing a 
 prominent denticulate plate below, 
 Merodon-like ; vertical triangle in 
 the male broad, frons in the i'emale 
 very broad. 
 
 Third antennal joint red or reddish, 
 sometimes more or less infuscated, 
 but never black ; ocelli arranged in 
 an equilateral triangle. 
 
 Abdomen more or less red on the 
 sides near the ba^e ; front coxae and 
 four anterior lej>s entirely red ; 
 wings hyaline with pale stigma . . 
 
 Abdomen entirely black, or at the 
 most with yellow spots on the 
 second and third segments; front 
 coxae black; fore legs more or less 
 black ; wings infuscated towards 
 the middle, with blackish stigma. 
 
 Abdomen with broad vellow spots on 
 the second and narrower ones on 
 the third segment; third antennal 
 joint small, dark brown 
 
 Abdomen with the usual lunulae, 
 beneath which can be seen a yellow 
 ground ; legs often with black tarsi 
 also ; third antennal joint broad, 
 red 
 
 axinecerus, Speis. 
 
 f Macq. 
 
 erythrocerua, Loew. 
 
 20 (21) 
 21 (20) 
 22 (19) 
 
 Third antennal joint entirely black; 
 
 ocelli arranged in an isosceles tri- 
 angle, the anterior ocellus being 
 
 further from the posterior ocelli 
 
 than the latter are from each other. 
 Scutelium long, clothed with short 
 
 hair, not ciliated behind, with the 
 
 hind border thin, sharp, andgranular, 
 
 not tomentose ; thorax shining 
 
 black in front of the suture, without 
 
 grey pattern ; frons in the female 
 
 shining black ; abdomen elongate, 
 
 with less distinct lunulae. 
 Eyes bare; hind femora and tibiaa 
 
 'flattened, shining black, almost 
 
 bare; third antennal joint tri- 
 angular triangularisj Ilerv.-P* 
 
 Eyes densely pilose, even in the 
 
 female ; hind femora and tibiae of 
 
 usual shape, very hairy ; abdominal 
 
 lunnlfB evanescent outwards unicolor, Loew. 
 
 Scutelium rather short, clothed with 
 
 long hair, ciliated behind, its hind 
 
 border not sharp, less granular and 
 
 grey tomentose ; thorax in front of 
 
 the* suture with distinct grey mark- 
 ings ; frons in female densely 
 
 tomentose, the ground-colour not 
 
111 
 
 visible: nbdoinen short, with very 
 distinct lunulae j hind legs densely 
 pilose. 
 
 23 (24) Abdomen dull, with only two pairs 
 
 of lunulofi, the fourth segment being 
 entirely covered with dense pollen ; 
 hind tarsi of male fringed above 
 only at base vest it us, Bezzi. 
 
 24 (23) Abdomen shining, with three pairs of 
 
 lunulfe, the last segment not polli- 
 nose ; hind tarsi of male fringed 
 above throughout almost the whole 
 length oblifjwts, FaLr. 
 
 117. Eumerus paulae, Herre-Bazin (1913). 
 
 A pretty species, very distinct in the male sex, owing to the 
 silvery pubescence on the abdomen, which almost entirely conceals 
 the usual lunulae, and owing to the enormous genitalia, which are 
 usually exserted. 
 
 This and the two following species belong to a peculiar group, 
 which is perhaps allied to the Mediterranean argyropus, Loew 
 (exiUprs, Rondani) ; in the latter species, however, the eyes of the 
 male are in contact for a long distance as usual. The female is 
 like the male, but has no silvery pubescence and only normal hair, 
 and on the abdomen there are three pairs of distinct lunulse as 
 usual. 
 
 A male from Durban, Xatal ( F. 3fuir) t another from Howick, 
 Xatal (J". P. Cregoe}, and a third from Nyasaland (Dr. J. E. S. 
 Old). A female from Durban (-F. Juir) differs from the following 
 species owing to its greater size (6'5 mm.) and more obscure 
 wings, with distinct vena spuria and dark stigma. 
 
 It seems to be a widely distributed species, very different from 
 argenteus of Walker and Loew. 
 
 118. Eumerus serratus, sp. n. 
 
 cJ $ . Length of the body 5 to 5 '5 mm. 
 
 Yerv closely allied to the preceding, but smaller and distinguished 
 by the absence of the silvery abdominal pubescence, the white 
 lunuhe being as distinct as usual. 
 
 Head pure black, not purplish blue as in the preceding ; frons 
 of male shining, with erect dark hairs towards the vertical triangle 
 and a few paler ones above the antennae, much constricted in the 
 middle, but the eyes not actually touching, merely close together 
 for a short distance ; frons of female of uniform width, strongly 
 shining, smooth, with short grey hair and a more or less distinct 
 transverse band of whitish dust below the middle ; ocelli forming 
 an equilateral triangle ; occiput rather prominent above, with long 
 white hairs behind the ocelli ; eyes of male bearing short pale hair, 
 those of the female almost bare ; face sinning, flat, densely covered 
 
112 SYRPIIIDJE. 
 
 with minute, short, whitish hair; antennae reddish yellow, the 
 third joint rather broad, hatchet-like, with the upper border 
 darkened throughout its whole length ; arista inserted near the 
 base, black and bare ; opening of buccal cavity rather broad, but 
 short and almost circular. Thorax shining black, somewhat 
 purplish in the male, finely punctate, clothed in the male with 
 dense and long silvery hair as in panics, and with similar but 
 sparser hair on the pleurae; in the female the thorax is only 
 thinly covered with short hair, and is adorned with two distant 
 white stripes on the fore part. Squarnulse and halteres whitish, 
 those of the male pure white, the squamulse white - fringed. 
 Scutellum shining black, bluish in the male, clothed with erect 
 grey hair, the hind border broad, elevated, and bearing very long 
 black spines, less numerous but stronger than in Paragus serratus. 
 Abdomen as broad as the thorax, with parallel sides, black, but in 
 the male at the base with a bluish and at the tip with a purplish 
 sheen ; the white lunulae of the second to the fourth segments are 
 well marked, but small, very oblique, and widely separated in the 
 middle ; hair very short, only at base long and whitish : genitalia 
 of male of the type of those of panics, but not so prominent. 
 Legs shining black, with white hair ; all the tibiae at base and the 
 tarsi pale yellow; hind tarsi strong, broad, infuscated, with a 
 yellowish ring at the end of each joint ; hind femora simple, not 
 thickened, bearing only a few strong bristles below near the tip ; 
 hind tibiae strong, club-shaped, those of male with distinct but not 
 dense silvery pubescence, which is wanting on the proximal two- 
 thirds of the first basal joint. Wings entirely hyaline, strongly 
 iridescent, with black veins, but less distinct vena spuria ; stigma 
 hardly infuscated at base ; the two outward bends of the apical 
 cross-vein each bear an appendix. 
 
 Type d and type $ from Salisbury, Mashonaland (G-. A. K. 
 Marshall). The female can scarcely be distinguished from that 
 of preceding species, except by its smaller size and darker wings. 
 
 119. Eumerus maculipennis, sp. n. 
 
 $ . Length of the body 5'5 to 6 mm. 
 
 Allied to the two preceding species, but at once distinguished by 
 the yellow spots on the second abdominal segment and the infus- 
 cations of the wings. 
 
 As I have seen only females, which are very like those of 
 serratus, I will here simply state the differences. The size is a 
 little larger; the scutellar spines are less prominent; the second 
 abdominal segment, instead of the usual lunules, bears on each 
 side a broad yellow spot, which forms a transverse band, interrupted 
 in the middle and not reaching the sides. Wings with yellow 
 stigma and distinct vena spuria ; the infuscations are on the small 
 cross-vein, at the prsefurca, and on the two apical cross-veins. 
 
 Type $ and two additional specimens from Oshogbo, S. Nigeria, 
 x.-xii. 1910 (Dr. T. F. G. Mayer}. 
 
KL'MEKrs. 113 
 
 This species is nearly allied to the recently described E. bequaerfi, 
 Herne-Bazin (1913)," and very probably corresponds to the un- 
 named specimens recorded from Basoko by the author on p. 78 of 
 the work in question ; it differs in being smaller, in having much 
 broader yellow abdominal spots, which besides are of a triangular 
 shape, and in the infuscated cross-veins. 
 
 120. Eumerus arinipes, sp. n. 
 
 d" . Length of the body 7 mm. 
 
 This species is distinguished from any of its congeners at present 
 known, owing to the presence of a very strong spine near the base 
 of the hind femora. 
 
 Head black ; vertical triangle very long and narrow, shining, 
 pollinose only in the anterior angle, clothed with erect grey hairs ; 
 ocelli forming an equilateral triangle, which, however, extends far 
 forwards and is distant from the vertex ; occiput prominent above, 
 white pollinose near the eyes ; frontal triangle and face clothed 
 with very dense white pollen and minute white pubescence ; eyes 
 quite bare except for the presence of a few hairs below, in contact 
 for a distance shorter than the frontal triangle; antenna? short, 
 
 Fig. 18. Eumems armipes, sp. n., c?. 
 Left hind leg from inner side, X 15. 
 
 dark yellowish, the third joint small, subquadrate, with a black 
 bare arista at the base. Thorax shining aeneous, punctate, with 
 verv short grey pubescence, which is a little longer on the pleurae ; 
 on the middle of the back there are two distant parallel stripes of 
 white pollen extending beyond the suture, but not reaching the 
 scutellmn. Scutellum long, with sharp hind border, which is 
 black and bears short tubercles ; in the middle it is almost as bare 
 as the thorax. Squaniulse pure white and white-fringed ; halteres 
 yellowish. Abdomen very narrow, with parallel sides, narrower 
 than the thorax, of a black colour with aeneous and dark purplish 
 reflexions ; second to fourth segments with equal pairs of broad 
 lunulse, not very oblique and approaching one another in the 
 middle ; pubescence very short, except at the base ; genitalia 
 rounded, not bilobate, concealed. Legs black, with short pale 
 
Sl'RPHIDJE. 
 
 pubescence ; base of tibiae, front and middle trochanters, base of 
 middle femora and base of front and middle tarsi yellow ; hind 
 femora swollen, clothed with very short hair, shining aeneous, the 
 basal spine very strong and long, blunt and black ; at the tips the 
 hind femora are without an appendix, but bear a double series of 
 strong spines ; hind tibiae club-shaped, clothed with very short 
 hair ; hind tarsi slightly thickened. Wings greyish hyaline, with 
 black veins and black stigma ; vena spuria distinct ; apical cross- 
 vein bearing three stumps, two directed outwards and one inwards ; 
 lower corner of the discal cell bearing an appendix. 
 
 Type <5 , a single specimen from Durban, 1902 (F. Muir). 
 
 121. Eumerus scaber, sp. n. 
 
 <S . Length of the body 8 mm. 
 
 A dark purplish, very deeply punctate species, which is closely 
 allied to the following, but has a narrower yellow hind border to 
 the scutellum and less distinct abdominal lunulae. 
 
 Head purplish black, with the occipital border strongly produced 
 above and clothed with short black hair ; posterior orbits silvery- 
 white pollinose below and clothed with white hair ; vertical triangle 
 narrow and elongate, shining black, clothed with short black hair, 
 but its anterior extremity whitish pollinose and pale- haired ; front 
 ocellus occupying a forward position, the ocellar triangle not being 
 equilateral ; frontal triangle very small, shining bluish, with a small 
 median depression, almost bare ; face thinly pollinose and sparsely 
 clothed with white hair ; eyes almost bare, in contact for a distance 
 a little longer than the frontal triangle ; antennae short, black, the 
 third joint rounded. Thorax purplish black, very strongly punctate 
 and therefore but little shining, almost bare, its yellowish dust 
 distinct only on the sides and behind ; pleurae with white hairs ; no 
 distinct longitudinal stripes on the back. Scutellum like the thorax, 
 its hind border not sharply produced, narrowly yellow and minutely 
 granulate. Squamulse pale yellowish like the halteres. Abdomen 
 as broad as the thorax and similarly punctate, rather short and of 
 the same colour ; on the sides it bears a white pubescence ; the 
 lunulae are scarcely distinguishable, on the second and third segments 
 they are indicated only by a rather deep furrow, which is whitish 
 pollinose. Genitalia reddish, very much developed, projecting as a 
 yellow tubercle, fringed with hair on each side, towards the middle 
 of the belly. Legs short, shining black, with very short whitish 
 pubescence ; front coxae dark brown ; trochanters, knees, and all the 
 tarsi yellow ; hind femora thickened, but without apophysis below 
 at the tip, provided only with two rows of short spines, the external 
 more developed ; hind tibiae clothed with short hair like the tarsi. 
 Wings greyish hyaline, with dark stigma, and distinctly infuscated 
 in the middle below the stigma to the fourth vein and from the 
 praef urea to the end of the second vein ; veins black ; vena spuria 
 quite distinct ; apical cross-vein with two stumps ; inferior angle 
 of the discal cell with the rudiment of a stump. 
 
Type c? , a single specimen from 
 11. xi. 1907, " caught in bush " (Dr. 
 
 El" MERITS. 115 
 
 cimen from Obuasi, Ashanti, West Africa 
 
 W. J/. Graham). 
 
 122. Eumerus feae, Beszi (1912). 
 
 Readily distinguishable, owing to the breadth of the yellow 
 margin of the scutellum and to the narrowness of the frons of the 
 female ; thoracic stripes and abdominal lunulse well marked. 
 
 This species, recently described by me from Fernando Po and 
 the French Congo, seems to be widely distributed in West Africa. 
 A male and three females from Obuasi, Ashanti, " caught on bush 
 and flowers," vii.-xi. 1907 (Dr. W. M. Graham) ; a female from 
 Oshogbo, S. Nigeria, 20-30. ix. 1910 (Dr. T. F. G. Mayer} ; a 
 female from Ibadan, S. Nigeria (Capt. Leslie) ; and a male from 
 Zomba, Nyasaland (Dr. H. S. Stannus). The last-mentioned 
 specimen has the antennae, face, and smaller genitalia reddish ; it 
 probably belongs to a distinct species. 
 
 123. Eumerus axinecerus, Speiser (1910). 
 
 Distinguished by its antenna? and fore legs being red, and by 
 the abdomen being more or less red at the sides near the base. In 
 my table of 1912 I placed this species among those in which the 
 abdomen is black ; usually, however, the red colour, as described 
 by the author is quite distinct ; it seems to be distinguished from 
 litnatus owing to the colour of the legs, in which only the knees 
 are reddish. 
 
 A pair from Durban, Natal (F. Muir). 
 
 121. Eumerus quadrimaculatus, Macquart (1855). 
 
 I refer with some doubt to this species two males from Blantyre, 
 Xyasaland Protectorate, 20. iv. 1910 (Dr. J. E. S. OU). The 
 species represented by the specimens before me seems to be allied 
 to the foregoing, and is very different from that recorded under 
 the same name by Prof. Herve-Bazin, Rev. Zool. Afric. iii. 1913, 
 p. 78. Except- for the fact that the femora are rather swollen, I 
 should have referred the present specimens to E. beyuaerti, H.-B. 
 
 125. Eumerus triangularis, Herve-Bazin (1913). 
 
 A very distinct species owing to its very broad and flattened, 
 almost glabrous hind legs, its entirely bare eyes, and the peculiar 
 shape of the second antennal joint. 
 
 The shape of the hind legs in this species is similar to that 
 seen in erythrocerus ; the front ocellus is distant from the other 
 two ocelli ; the second antennal joint is prolonged as a long lamella 
 on the inner side of the last joint, much as in the species of Ptecticv* 
 or of Syntormon ; the abdomen is rather elongate and narrow, even 
 
 i 2 
 
116 STRPHIIKE. 
 
 narrower than the thorax in the middle ; hind femora greatly 
 thickened, but Hat, provided below near the end with a long and 
 sharp plate which bears on its margin 8-10 very strong spines ; 
 hind tibiae flattened, almost bare, shining. 
 
 A male from Durban, 5. x. 1902 (F. Muir) ; a female from 
 Salisbury, Mashonaland ( G. A. K. Marshall} ; another male from 
 Chirinda Forest, S. Khodesia, x. 1905 (G. A. K. Marshall). The 
 type of the species was obtained in Belgian Congo. 
 
 Ii2i>. Eumerus obliqims, Falricius (1S05). 
 
 Easily recognisable owing to its short and broad body, to the hind 
 margin of the scutellum being clothed with grey hair and not 
 sharply produced, to the length of the hair on the eyes, the gmit 
 distinctness of the three pairs of abdominal lunuUe, and the strongly 
 incrassate and very hairy hind tibia-. 
 
 Distributed throughout the Ethiopian Region. A male and 
 three females from Obuasi, Ashanti, West Africa, 24. vi. 1907, 
 "caught on flowers' 1 (Dr. W. M. Graham) ; a female from Ayeze, 
 S. Nigeria, 9. iv. 1911 (Dr. A. Connal) ; a female from Kembi, 
 Uganda, iv. 1904 (Capt. E. D. W. Greta) ; a female from British 
 East Africa (C. S. Betton), and another from British Central 
 Africa (Dr. J. E. /S'. Old) ; a male from Durban, Natal, 24. x. 1902 
 (F. Mi u'r). 
 
 Genus 23. AMPHOTERUS, nov. 
 
 A strange insect, showing venation and scutellum of Eumerus, 
 but with quite simple hind femora, and having the head and 
 antennae of Microdon. It differs from any other Syrphid genus 
 yet known by the shortness of the first antennal joint and by the 
 elongation of the second, which is much longer than the third. 
 I was at first inclined to consider this insect as an aberrant Microdon 
 with shortened first antennal joint ; but on account of the venation 
 I now think it better to regard it as a E inner us with elongated 
 second antennal joint. This connecting form between Eumerus 
 and Microdon is a very interesting novelty ; the discovery of its 
 larva will probably explain the question. 
 
 Body dull, strongly chitinizecl, deeply punctate. Head a little 
 broader than the thorax ; eyes bare, shining, with equal facets, 
 widely separated in the male, but with the inner angles approaching 
 each other, and with the usual transverse furrow between the angles ; 
 face broader than the frons, gently convex, comparatively narrow, 
 without furrows ; opening of buccal cavity very small ; proboscis 
 but little prominent ; antennae longer than the face and pendulous ; 
 first joint exceedingly short, scarcely noticeable below the lunula ; 
 second joint very long, thin, almost bare ; third joint elongated, 
 broader than the second and a little more than half its length ; 
 arista verv thin, bare, rather long, inserted rather far from the 
 
AM PHOT Ell US. 117 
 
 ocelli rather distant, arranged in an equilateral triangle ; 
 pubescence of irons and face rather long. Thorax subquadrate, 
 with short pubescence ; scutellum semicircular, unarmed, its hind 
 border sharp and produced as in Eumerus. Abdomen as broad as 
 the thorax, with parallel sides ; second and third segments almost 
 of equal size, fourth more than twice as long as the third. Legs 
 short and not robust ; hind femora quite simple, neither thickened, 
 incurved, dentate, nor spinose ; tarsi very thin, not expanded nor 
 flattened. Wings with venation very like that of Eumerus ; no 
 iT.>ss-vein between the ends of the auxiliary and first longitudinal 
 veins ; third vein without a stump ; small cross-vein situate beyond 
 the middle of the discal cell ; apical cross- vein bent in the middle 
 as in Eumerus, and at this point with a stump directed outwards; 
 lower corners of the subapical and of the discal cells rounded off 
 and each bearing a stump ; vena spuria distinct ; postical cross- 
 vein with its upper end exactlv on a level with the middle of the 
 subapical cell. 
 
 Type : the following new species : 
 
 127. Amphoterus cribratus, sp. n. 
 
 c? . Length of the body 10 mm., of the antennae 2~5 mm. 
 
 A stout ny of a dark colour, with very strongly punctate body, 
 simple legs, and long pendulous antennae. 
 
 Head black; the dark hairs on the frons erect; face grey-dusted 
 and yellowish-haired ; antenna 1 and arista entirely black; proboscis 
 
 Fig. 19. Amphotenis~cribratv.$. sp. u $. X 1. 
 
 black. Thorax and scutellum black, very strongly punctate, with 
 short yellowish pubescence, which is a little longer on the anterior 
 half of the pleura?. Abdomen black, punctate like the thorax, with 
 some pale erect hairs at the base and on the sides ; its pubescence 
 is short, yellowish, and denser towards the sides, while at the end of 
 the fourth secernent it is abundant and almost of a golden colour ; 
 
118 
 
 second and third segments each with a somewhat distinct median 
 band of grey pollen, narrowly interrupted in the middle and broader 
 towards the sides ; fourth segment with several of these bands, one 
 after the other, but not very distinct. Genitalia black, with yellow 
 pubescence ; belly black. Legs entirely black, the femora sparsely 
 clothed with pale hairs and the tibiae with short yellowish pu- 
 bescence ; all the tarsi very thin, not flattened ; first joint of hind 
 tarsi simple ; hind legs more robust than the anterior ones, but not 
 thickened and entirely simple. Wings greyish hyaline, with brown 
 veins and yellowish stigma ; there is a broad infuscated pubescent 
 pat3h from the small cross-vein to the tip of the wing, extending 
 below to the lower corner of the discal cell. 
 
 Type 6 , a single specimen from British East Africa, collected 
 by T. J. Anderson. 
 
 Genus 24. CHRYSOTOXUM, Meigen (1803). 
 
 This genus seems to be very poorly represented in the Ethiopian 
 Region. 
 
 128. Chrysotoxum continum, sp. n. 
 
 cT . Length of the body 13 mm. 
 
 Closely resembling Chr. intermedium, Meig. (italicum^ Rond.), 
 but distinguished by having the dark costal band on the wings less 
 developed, and differing from any other European or North 
 American species known to me in having the yellow lateral stripe 
 on the thorax not interrupted at the suture. 
 
 In the Second Part of my 'Ditteri Eritrei' (1908) I considered 
 the present species as an Ethiopian form of intermedium ; but I 
 now think it better to regard it as a distinct species, the only 
 member of its genus known from the Ethiopian Region. The 
 female is to be found in the Museum of Florence, and another 
 specimen in that of Budapest. 
 
 There is no necessity for a detailed description, the species being 
 almost like intermedium. The first two joints of the antennae are 
 perhaps a little longer ; dorsum of thorax more shining, especially 
 behind ; the yellow lateral stripe is not interrupted, and is of equal 
 width from the shoulders to the postalar callus ; pleurae with the 
 same spots as in intermedium; scutellum yellow, with the same 
 pellucid spot. Abdominal pattern the same, the yellow bands being, 
 however, a little narrower as in all the specimens examined. Legs 
 and wings the same, but the latter only faintly infuscated along 
 the fore border, lacking the usual dark band near the end. 
 
 Type d and two additional specimens from Nairobi, East Africa 
 Protectorate, 5. v. 1911 ; another male specimen from 13 miles 
 north of M'bagori's Village, towards Meru, East Africa Protectorate, 
 13. xi. 1911, all collected bv Mr. T. J. Anderson. 
 
MTCHODON. 119 
 
 Genus 25. MICRODON, Me i yen (1303). 
 
 In the case of this genus the collection includes very many 
 interesting species, the majority of which are strikingly coloured, 
 while some appear to mimic various species of Hymenoptera. The 
 differences in structural characters are so pronounced tliat separation 
 into minor genera seems to be necessary ; this, however, is not easy, 
 because the shape of antennae is very variable and shows gradual 
 transition to the extreme forms; the scutellum also gradually 
 passes from the armed to the unarmed form. 
 
 Of the generally accepted genera, Ctratopkya, Myxogaster, and 
 Rkopalosyrphus are exclusively American, and therefore need not 
 be considered here. In the collection, however, there is a mutilated 
 specimen from the Cape which closely resembles Myxoyaster or 
 Jtkopalosyrphu*, but has two small spines on the scutellum ; 
 Dr. J. C. H. de Meijere, again, has described three Oriental species 
 ( cespifonnix, indicus, and ody nereides), which exhibit the characters 
 of the genera mentioned, while in each case the scutellum is 
 unarmed. 
 
 The recently described genus Paramicrodon, de Meijere, 1913, 
 which occurs in Xew Guinea, has short antennae and an unarmed 
 scutellum, and is distinguished by the absence of a stump on the 
 third vein. 
 
 Of the generic names relegated to synonymy, Chymopkila 
 proved to have been applied to a Alteration with the head of a 
 Conops glued upon it ; Dimertupit was bestowed upon a true 
 North- American Microdoii not far removed from the European 
 forms, but with an unarmed scutellum ; 3fnopkila is merelv a 
 no men nil J um, which also applies to a North- American species of 
 true Mi c rod on, with bilobed scutellum ; Tfbritte* was bestowed 
 upon a Neotropical species, and, although its characters were not 
 clearly defined, it was possibly meant to include South- American 
 forms with an unarmed scutellum; Omegasyrphus also includes 
 American forms with narrow abdomens, the second segment of 
 which exhibits a very peculiar sculpture. 
 
 As stated above, the Ethiopian forms before me exhibit a 
 great many structural variations, the existence of which renders it 
 necessary to institute new genera ; for the present, however, it seems 
 better to divide the species in question into anonymous groups, 
 since some of the names mentioned above can perhaps be applied 
 to them. I have introduced only two new generic names for two 
 very striking forms, one of which is allied to Eu merits and has 
 been described above. 
 
 The following is a table for the distinction of the Ethiopian 
 groups of the genus ALicrodon, s. 1., with the addition of the two 
 new genera : 
 
 1 (14) Middle cross-vein situate on the basal third of 
 the discal cell; third longitudinal vein pro- 
 vided with the usual peculiar stump in the 
 subapical cell ; a distinct cross-vein uniting 
 
120 
 
 STBPHIDJE. 
 
 the tips of the auxiliary and the first vein ; 
 Bubapical cross-vein not bent towards its 
 middle and with no stump at that point ; first 
 antennal joint more or less elongate, almost 
 exceeding the second in length. 
 
 2 (13) Third antennal joint bare, more or less elongate; 
 
 aiista developed as usual; face without fur- 
 rows, or these only slightly developed. 
 
 3 (4) Abdomen narrow and stalked, the second seg- 
 
 ment being very much constricted towards its 
 middle, and there much narrower than the 
 thorax ; thorax and legs bare ; scutellum with 
 two spines Giicur I. 
 
 4 (3) Abdomen not stalked, mostly very broad, and at 
 
 least as broad as the thorax. 
 
 5 (12) Third antennal joint as long as or shorter than 
 
 the first, pendulous; second joint well de- 
 veloped, sometimes almost as long as the 
 third : eyes of male with a prominent angle 
 in the middle of the frons, slightly convergent ; 
 thorax and head with a very short pilosity. 
 G (7) Antennae very short and thick, the third Joint 
 ovate, as long as the first; smallish, short 
 species, with almost rounded abdomen ; 
 scutellum deeply emarginate at end ; ocelli 
 distant; legs and thorax rather pilose GROUP II. 
 
 7 (6) Antennas of the ordinary length, the third joint 
 
 shorter than the first, which is usually thin. 
 
 8 (9) Scutellum with strong spines ; ocelli distant ; 
 
 legs and thorax pilose ; short, rounded, 
 aeneous species, very much resembling the 
 European ones GROUP III. 
 
 9 (8) Scutellum rounded, without spines, neither 
 
 dentate nor emarginate ; ocelli in contact 
 with each other, forming a single tubercle ; 
 legs bare ; rather elongate species, usually of 
 considerable size, and often very striking in 
 coloration. 
 
 10 (11) Body almost cylindrical, brown and blackish 
 
 coloured, very strongly punctate ; third 
 antennal joint rather short ; second abdominal 
 segment depressed in the middle and produced 
 on each side; first joint of hind tarsi greatly 
 swollen GKOUP IV. 
 
 11 (10) Body not cylindrical, the abdomen being usually 
 
 broader than the thorax even if elongate, its 
 second segment not produced on each side or 
 only very rarely ; punctuation slighter and 
 coloration more striking; first joint of hind 
 tarsi not or not so much swollen ; third 
 antenral joint usually elongate GROUP V. 
 
 12 (5) Third antennal joint enormously elongate, erect, 
 
 4 to 5 times as long as the first ; second joint 
 very short, almost rudimentary ; eyes of male 
 with scarcely any trace of a prominent angle 
 and very widely separate ; ocelli distant ; 
 thorax, head, and leo-s clothed with long hair. GROUP VI. 
 
MICKODOX. 121 
 
 13 (2) Third antennal joint four times as 
 
 long as the fir t, feathered, clothed 
 with long and soi't hairs ou its inner 
 and outer sides ; arista rudimentary, 
 represented by a very short stump ; 
 eyes very widely separate, without 
 prominent angle in the middle of 
 the frons ; lace with oblique fur- 
 rows; ocelli rather distant ; seutellum 
 rounded ; legs bare Ptilobacfrum, gen. nov. 
 
 14 (1) Middle cross- vein situate beyond the 
 
 middle of the dkcal cell; third 
 longitudinal vein without a stump; 
 no distinct cross-vein connecting the 
 tips of the auxiliary and first veins; 
 subapical cress- vein bent towards 
 its middle and there provided with 
 an outwardly directed stump ; first 
 antennal joint ver} 7 short, hardly 
 vi-ible, the second greatly elongate, 
 longer than the third; oceUi dis- 
 tant ; frons of male contracted 
 towards the middle ; scutellum 
 rounded ; body cylindrical, strongly 
 punctate ; Irgs almost bare Atupkotenu, gen. nov. 
 
 GROUP I. (illucens, sp. n.). 
 
 There is only a single specimen, without a head ; notwithstanding 
 this, 1 think it better to name it, as it is very strongly differentiated 
 and is reminiscent of the American genus Ifyxoyaster, which, 
 however, lacks the stump on the third vein. The recently described 
 J/. acantkolepidit, Speiser (1913), perhaps belongs here, but 
 .seems to have a sessile abdomen. 
 
 129. Microdon illucens, sp. n. 
 
 d 1 . Length of the body (without head) 8 mm. 
 
 A slender elongate species, very distinct owing to the abdomen 
 being pedunculate and to the presence of tAvo thin and short but 
 well-developed spines on the scutellum. 
 
 Head wanting. Thorax subquadrate, black, strongly punctate, 
 and consequently dull, with very short grey pubescence ; shoulders 
 sinning yellowish ; pleura? towards the middle with a vertical broad 
 band of silvery shining thick pubescence ; the upper extremity of 
 this band emits a small transverse band, which runs along the 
 suture and across the back, being interrupted in the middle ; a 
 similar but less well-developed band is to be observed in front of 
 the scutellum, and before this band is a triangular deep black spot. 
 Scutellum strong, convex, rounded behind, punctate and coloured 
 like the thorax ; the two small, short, yellow spines are placed 
 rather low down, and are slightly curved upwards. Metanotum 
 shining black. SquamuUe white, very small, with bare margins ; 
 
122 SYBPHIDJE. 
 
 halteres yellow. Abdomen black, punctate, with short, spars; 1 , 
 silvery pubescence ; first segment entirely black, as broad as the 
 scutellum ; second greatly constricted in the middle, black, with a 
 yellowish pellucid streak on each side, leaving in the centre a thin 
 black median line, which is dilated into a triangle behind, the yellow 
 streaks being therefore abbreviated forwards and reaching the hind 
 border on the sides; third segment black, reddish towards the 
 hind border, where there is a transverse band of silvery pubescence ; 
 fourth entirely dark reddish, longer than the third, with a broad 
 black spot on each side at the base ; genitalia red, concealed ; belly 
 red. Legs short and thin ; coxae and femora black, the two 
 anterior pairs partly reddish, the hind pair with yellow knees ; 
 
 Fig. 20. -Microdon illucens, sp. n., rf . 
 Abdomen, X 9. 
 
 four anterior tibiae reddish, with white pubescence ; hind tibiae 
 white on the basal, black on the apical half ; all the tarsi reddish 
 yellow, with a small black spot on the underside of each joint ; 
 claws with black tips ; hind tarsi not dilated. Wings hyaline, 
 rather narrow, without stigma and with normal black veins ; the 
 two apical cross-veins and the well-developed stump are all parallel ; 
 lower corner of the subapical cell with short appendix, that of the 
 discal cell with none. 
 
 Type d, a single specimen from Cape Ceira, Mozambique, 
 Portuguese East Africa, 3. vi. 1904 (F. Muir). 
 
 GROUP II. (brevicornis, Loew*). 
 
 This group is composed of short rounded species, with short 
 antennae and emarginate scutellum ; they are not very different 
 from the typical species and have the thorax and scutellum similarly 
 
MICHODOX. 123 
 
 clothed with hair. The frons of the male is very narrow, and in 
 both sexes irons and face are comparatively narrow, the face being 
 constricted below. There is a rather pronounced sexual dimor- 
 phism, the female being usually of larger size and differently 
 coloured. 
 
 Some Oriental species also seem to belong to this group, e. g. 
 siinplicicornis, de Meijere, from Java, and grageti, limbinercis, 
 and nocrt-ffiiinert, de Meij., from New Guinea. 
 
 The collection includes specimens of the following species : 
 
 1 (2) Femora black, narrowly yellow at the end 
 
 alone ; the female with deep blue body and 
 strongly infuscated wing-* ; abdomen of 
 the male more or less yellow at the base 
 only Irevicornis, Loe\v. 
 
 2 (1) Femora yellow, more or less black above 
 
 towards the base ; the female with seneous, 
 slightly bluii-h body, and not infuscated 
 wings ; abdomen of the male almost entirely 
 yellow ". lestaceus, Walk. 
 
 130. Microdon brevicornis, Loew (1858). 
 
 A well-known species, originally described from Caffraria, and 
 subsequently recorded from Assinie and Belgian Congo in West 
 Africa, and from Usambara and Kilimandjaro in East Africa. 
 The male, which is very different from the female, has recently been 
 described by Prof. Herve-Bazin in Rev. Zool. Afric. iii. p. 100 
 (1913). 
 
 Two males from Obuasi, Ashanti, W. Africa, 12 & 14. vi. 1907, 
 "caught on leaf" and " on stick on damp path" (Dr. W. M. 
 Graham) \ a female from same locality and collector, 15. vi., 
 " caught in bush " ; two females from Freetown, Sierra Leone, 
 W. Africa, 21. viii. and 12. ix. 1899 (E. E. Austen). 
 
 131. Microdon testaceus, Walker (1857). 
 
 A stout rounded species, in the male sex closely resembling the 
 preceding, but distinguished by the different coloration of the legs 
 and by the very different appearance of the female. 
 
 The specimens before me answer well enough to the short 
 description of Walker, and it seems advisable here to characterise 
 the species more in detail. 
 
 d . Length of the body 7 mm. 
 
 Head nearly spherical, of a shining green a?neous colour ; occiput 
 concave, grey-dusted ; frons relatively very narrow, the inner 
 margins of the eyes angulate and converging a little before the 
 middle of the frons, which at the same point exhibits a deep 
 transverse furrow ; hair on frons and occiput rather long, dark 
 grey ; ocelli widely distant from the vertex, situate almost in the 
 middle of the frons. adjacent to each other, but not in contact ; 
 
121 s 
 
 eves bare, of a shining dark brown colour, with facets almost equal 
 in size ; antennae very short, black, the tirst joint clothed with 
 black hair, as long as the third, which is oval ; second joint about 
 half the length of the third; arista short, as long as the third 
 joint and situate near its base, black, not thickened ; face narrow, 
 somewhat constricted below, gently convex, clothed with white 
 hairs, its ground-colour, however, being distinct ; proboscis yellow, 
 thick and prominent, with broad labella. Thorax and scutellum 
 shining greenish aeneous, finely punctate, clothed with rather long, 
 erect, dark grey hair ; on the hind part of the dorsum, before the 
 scutellum, there are the characteristic spots margined with purple 
 and blue ; pleura? partly dark yellowish, with longer hairs. 
 Scutellum deeply emarginate behind, almost bidentate. Squamulae 
 rather large, white ; halteres whitish. Abdomen much broader 
 than the thorax, short and rounded, clothed with short hair ; it is 
 almost entirely yellow, only the sides and the fourth segment 
 being more or less darkened ; second, third, and fourth segments 
 with the transverse bands of grey pubescence like those of brevi- 
 cornis', the last segment is only twice as long as the third, and 
 the divisions between segments are distinct. Genitalia dark 
 yellow, pilosity white. Belly entirely yellow. Legs with rather 
 long, pale pubescence ; coxa? black ; femora yellow, more or less 
 darkened towards the base above ; tibia? whitish, with an ill-defined 
 dark ring beyond the middle ; tarsi short and broad, yellowish, the 
 first joint of the hind tarsi not swollen. Wings greyish hyaline, 
 with strong black veins, but without any infuscation ; onlv the 
 lower corner of the subapical cell bears an appendix. 
 
 $ . Length of the body 8 mm. Of larger size than the c? ; 
 thorax and head blacker ; frons and face broader, but the latter 
 narrowed below; abdomen entirely blue-black, only the second 
 segment being a little yellowish towards the sides ; tibiaa broadly 
 black at the end ; wings greyish hyaline as in the male. 
 Two male specimens and a female from Durban, Natal, 1902 
 (F. Muir) ; Walker's type was also obtained at Durban. 
 
 GROUP III. (obssus, Ilerve-Bazin). 
 
 This group consists of the typical species devius and mutalilis ; 
 the thorax and legs are clothed with rather long hair ; the frons is 
 narrow in the male ; the face is broad, and not constricted below ; 
 the antenna are long, the first joint being thin and longer than 
 the third, which is elongate. 
 
 The only addition to the group is the following species, which is- 
 allied to the two already mentioned. 
 
 132. Micro don obesus, Herve-Bazin (1913). 
 
 A small, hairy species, not unlike the European devius, but 
 smaller and with stronger and longer spines on the scutellum. 
 Body very finely punctate. Frons rather short ; ocelli not far 
 
Mlc'RODOV. 12-") 
 
 from the vertex anil distant fr.mi each other; face twice as broad 
 as the irons ; jowls with a small circular pit on each side.- Meta- 
 notum shining black, bare ; squarnulse and halteres pale yellowish. 
 Margins ot abdominal segments distinct ; genitalia black, clothed 
 with white hair. Small cross- vein close to the base of the discal 
 cell, almost in the same line as the cross-vein forming the distal 
 boundary of the second basal cell ; subapical and discal cells short, 
 the lower corner of the former bearing an appendix. 
 
 A single male specimen from Uganda, Plains N.E. of Lake 
 Edward.' 3.1200 feet, "in open/' 15-1(5. x. 1911 (S. A. Xeave). 
 The type of the sp-cies was obtained in Belgian Congo. 
 
 (JROUP IV. (punctulatus, IT'/ed.). 
 
 The species belonging to this group are distinguishable from 
 those of the following one by their smaller size and the cylindrical 
 shape of body, the abdomen being not broader than the thorax and 
 having the second segment depressed in the middle, and elevated 
 and produced at the sides, rather like that of Omega%yrpku t but 
 to a less extent. They also have a more strongly punctate body, 
 the first joint of the hind tarsi greatly swollen, and are duller in 
 colour, being blackish brown and dark reddish. The ocelli and 
 legs show the same characters as in the following group, and the 
 subapical and discal cells have their lower corners broadly rounded 
 and without an appendix. 
 
 In the collection there are two species, the first of which I 
 believe to be Wiedemann's species. The recently described 
 J/. titrsftlis, Herve-Bazin (1918), has the first joint of the hind 
 tarsi similarly shaped, but cannot be placed in the present group on 
 account of its bispinose scutellum. On the other hand, creuiasfo- 
 , apis, and caption, Speiser (1913), belong here, while 
 , Walker, is probably a Qraptomyza: 
 
 1 (2) Thiid antennal joint black ; winjjs strongly 
 
 infuseated ; abdomen in great part black ; 
 
 length 13 mm ......................... punctulatits, \Vied. 
 
 2 (1) Third antennal joint red like the others ; 
 
 wings jrreyish hyaline ; abdomen in great 
 part reddish ; slender spe-.-k-s 9 rani, in 
 length ................................ rugosus, ?p. n. 
 
 133. Microdon punctulatus, WieJemann (1824). 
 
 A male specimen from Durban, Xatal (J. P. Cregoe), which I 
 assume to belong to this species, as it answers well enough to the 
 description, although Wiedemann gives a smaller size. In this 
 specimen the frons is of a dark reddish colour, like the face ; the 
 third antennal joint alone is black; thorax on the sides of the 
 dorsum and pleurae above, as far as the scutellum, reddish; the 
 second segment of the abdomen on each side, and the distal 
 
12G SYKPHIDJ2. 
 
 extremity of the very elongate third segment, as also the genitalia, 
 of a dark red colour ; legs entirely red, only the hind tarsi being 
 blackish. 
 
 There is a female from Durban (F. Muir), which has an entirely 
 black head and a black second antenna! joint ; thorax and scutellum 
 wholly black ; abdomen black, with the third and fourth segments 
 red on the base and at the tip ; hind legs almost entirely black, as 
 described by Wiedemann. 
 
 Length of body 14 mm., while Wiedemann gives only 7 mm. 
 
 134. Micro don rugosus, sp. n. 
 
 c? . Length of body 8 to 9 mm. 
 
 Very near the preceding species, but smaller and slender in shape, 
 with entirely red antennae and hyaline wings. The size of the 
 present species corresponds better to that given by Wiedemann for 
 punctulatus, but the antennae and wings are different. 
 
 Fig. 21. Microdon rugosus, sp. n. <$ . X 6. 
 
 Head black, strongly wrinkled, covered with short and sparse 
 whitish pubescence, which does not conceal the ground-colour of 
 the face ; the frons, as far as the transverse furrow, and the upper 
 border of the occiput near the vertex are red ; the ocellar triangle 
 and an area surrounding it are black and shining, the ocelli are 
 very close together ; eyes shining dark brown, with facets of equal 
 size, rather near together in the middle of the frons owing to their 
 prominent angles; antenna? rather long, entirely dark red, the 
 first joint bare and thin, as long as the two following joints taken 
 together ; third joint oval, attenuated at the tip, with a very short 
 but not thick reddish arista ; face gently convex, not constricted 
 below ; opening of buccal cavity small ; jowls with a small pit on 
 
MTCRODOX. 127 
 
 each side ; proboscis retracted. Thorax subquadrate, wholly black, 
 dull owing to being strongly punctate, though shining on the 
 pleura; beneath, with very short yellowish pubescence ; scutellum 
 semicircular, punctate like the thorax, but bare and somewhat 
 shining, entirelv red, with a simple, rounded hind border. Meta- 
 notum shining black, wrinkled towards the middle above. Squamulas 
 and halteres white. Abdomen elongate, with almost parallel sides, 
 as broad as the thorax, but with the second segment a little dilated 
 on each side, punctate and pubescent like the thorax ; first segment 
 black ; second short, black in the middle, broadly red on the sides 
 and narrowly red on the hind border; it shows a sculpture 
 reminiscent of that of Omegatyrpkut, but much less developed; 
 third segment twice as long as the second, black, with the sides 
 and hind border red ; fourth twice as long as the third, red, with 
 t\vo more or less broad black spots on the sides ; genitalia red; 
 sometimes the second and third segments are wholly black, and 
 the fourth has only the hind border black; belly black, with yellow 
 hind borders to the first and second segments. Legs short and 
 almost bare, red, with coxa? and femora near the base black or dark 
 brown ; tirst joint of hind tarsi strongly swollen, deep black like 
 the following joints ; claws red, with black tips. Wings greyish 
 hyaline, with an elongate triangular dark spot towards the tip and 
 on the costal border, formed by pubescence ; veins strong and 
 black, normal ; snbapical cross-vein strongly recurrent ; external 
 lower corners of subapical and discal cells much rounded and 
 without an appendix. 
 
 Type <3 , and two additional specimens from British East Africa, 
 Ifbagori's Village, edge of Kenia Forest, 5,000 feet, 12. ii. 1911 
 (T. J. Anderson). 
 
 GROUP V. (inermis, Loew). 
 
 This seems to be the most numerous and characteristic group of 
 31 it- rod on in the Ethiopian region. To it belong the larger and 
 more strikingly coloured species, some of which are very strange 
 and beautiful flies. 
 
 The characters of the group are : Body and legs almost bare, 
 lightly punctate; ocelli in contact with each other and forming a 
 tubercle ; antennae elongate, the third joint sometimes as long as 
 the tirst ; frons and face very broad, the face not narrowed below ; 
 abdomen broader than the thorax at the base, attenuate behind, 
 conical rather than cylindrical in shape, the second segment simple 
 (with one exception) and the fourth segment in the male greatly 
 elongate, usually four or five times as long as the third ; first joint 
 of hind tarsi not or very little swollen. 
 
 Of the present group three species have already been described, 
 viz. inermis, {Ethiopians, and ryf Afar, all of which I have included 
 in the following table, although the two last are not represented 
 in the collection : 
 
128 SYRPHID.E. 
 
 1 (2) Entirely black and elongate species, 
 
 more' than '20 mm. in length ; an tenure 
 and legs bl.tck, but the latter some- 
 times of a reddish colour in the male ; 
 abdomen elongate, the second seg- 
 ment produced on each side, very 
 thinly punctate ; third antennal joint 
 half as long as the first mytlits, ?p. n. 
 
 2 (1) Less elongate species, not more than 
 
 18 mm. in length, the abdomen 
 broader than the thorax at the base 
 and conical, its second segment always 
 simple ; not entirely black, the abdo- 
 men, head, antennae, or legs being red 
 or yellow; third antennal joint about 
 as long as the first. 
 
 3 (4) Abdomen black; head, antennae, and 
 
 legs wholly red erytlirocephalus, sp. n. 
 
 4 (*3) Abdomen yellow or red ; antennae 
 
 black ; head black or with the face 
 alone yellow. 
 
 5 (8) Legs wholly black: face yellow; first 
 
 and second antennal joints clothed 
 with rather long hair ; rather pro- 
 minent species of larger size. 
 
 6 (7) Abdomen yellow ; Eastern species .... luteiventris, sp. n. 
 
 7 (6) Abdomen red; Western species erytltro*, Bezzi. 
 
 8 (5) Legs wholly or mostly red or yellow ; 
 
 face black ; first and second antennal 
 joints almost bare ; smaller and less 
 pilose species. 
 
 9 (10) Hind legs jjartly black ; the two first 
 
 antennal joints of a dark reddish 
 
 colour cethiopicus, Ilond. 
 
 10 (9) Hind legs entirely red or yellow ; 
 
 antennae entirely black. 
 
 11 (12) Abdomen and legs dark red ; wings 
 
 with a uniform bluish-black tinge ; 
 trochanters and pleurae black ; arista 
 reddish inermis, Loew. 
 
 12 (11) Abdomen and legs pale yellowish red ; 
 
 wings infuscated along the veins 
 alone ; trochanters yellowish ; pleurae 
 sometimes spotted with yellow ; arista 
 black palliduf, sp. n. 
 
 135. Microdon mydas, sp. n. 
 
 d $ Length of the body in the male 19 mm. ; in the female 
 21 mm., excluding in each case the antennae, which are 5 mm. 
 long. 
 
 A wonderful dull black species of considnrable size, resembling a 
 Mydas, and exhibiting some of the characters of the preceding 
 group, with which it forms a connecting-link. 
 
 The two sexes show remarkable differences in coloration. T will 
 
MICRODOX. 
 
 129 
 
 describe the male first. Head black, moderately punctate, a little 
 shining; towards the occiput there are some rather long, erect, 
 black hairs ; the frons shows very short black pubescence ; its fore 
 part and the face are covered with a distinct whitish pubescence ; 
 eyes dark brown, shining, with facets of equal size and with their 
 prominent angles fairly close together ; the transverse furrow in 
 the middle of the frons is deep ; ocelli close together, forming a 
 round tubercle placed in the middle of a broad longitudinal furrow, 
 which runs from the vertex above to the base of the antenna?, and 
 there encloses a smooth shining black triangle. Antennae very 
 long, the first joint clothed with very short hair and as long as the 
 last two joints taken together; second joint rather long; third 
 joint short, only a little longer than half the length of the first ; 
 arista black, not thickened, as long as the third antennal joint, 
 which is dull grey, while the first two joints are of a shining black 
 
 Fig 1 . 22. IficrodoH mydcu, sp. n.. 9- 
 
 colour. Opening of buceal cavity sin ill; proboscis short, black. 
 Thorax rectangular, minutely punctate, convex, entirely dull 
 black, with a very small reddish spot on the shoulders ; the thorax 
 is bare, with sparse yellowish pubescence in front and on the pleurae. 
 Scutellum convex, semicircular, punctate KKC the thorax, pubescent 
 only towards the sides, with a simple hind border; in the middle 
 there are four rather distinct, parallel furrows, running from the 
 base to the hind margin. Metanotum shining black, smooth ; 
 metapleurse not punctate, with tiny transverse furrows. Squamulae 
 whitish, with black borders and short black fringes; hulteres pale 
 yellowish. Abdomen very elongate, with almost parallel sides, only 
 a little attenuated behind, the second segment a little broader and 
 produced at the sides ; it is entirely black, even on the belly, only the 
 last segment having a broad, dark red hind border; the whole abdo- 
 men is punctate like the thorax : pubescence very short and entirely 
 
 K 
 
130 SYRPHID.T;. 
 
 black, no distinct bands of pale hairs ; third segment twice as long as 
 the second, fourth three times as long as the third, all the sutures 
 distinct ; genitalia red, clothed with short yellowish hair. Legs 
 almost bare, with black COXBS ; femora and tibiae of a very dark 
 reddish colour, but the former blackened at base or at least at end ; 
 tarsi black or dark brown, the first joint of the hind tarsi slightly 
 thickened ; claws black, pulvilli dark brown ; front tarsi very 
 broad and flat, grey pollinose above. Wings long and broad, with 
 a general shining brownish-yellow tinge and strong, black veins ; 
 lower outer corners of subapical and discal cells very much rounded 
 and without stumps ; alula, axillary lobe, anal cell, and middle part 
 of the second basal cell in contact, with the fourth longitudinal 
 vein almost hyaline. 
 
 The female (fig. 22) is very like the male, but of larger size and 
 blacker in colour ; the pubescence on the face is black, yellowish 
 only towards the eyes and margin of the buccal cavity; eyes 
 farther apart ; occipital border less developed ; thorax and scutellum 
 with black pubescence ; abdomen longer, entirely black, the fifth 
 segment one-third as long as the fourth ; legs entirely black ; 
 wings for the most part greyish hyaline, the dark tinge being 
 limited to the fore border and not extending beyond the third 
 longitudinal vein. 
 
 Type tf , from Uganda Protectorate, Tero Forest, S.E. Buddu, 
 3,800ft., 26-30. ix. 1911 (S. A. Neave) ; type $, from N.W. 
 shores of Victoria Nyanza, 3,800-3,900 ft., 12-15. ix. 1911 (same 
 collector). I think there can be no doubt that the female described 
 belongs to the same species as the male. 
 
 136. Microdon erythrocephalus, sp. n. 
 
 $ . Length of body 13 to 14 mm., of the antennae 4 mm. 
 
 A very distinct black species, with red head, antennae, and legs, 
 forming another addition to the extensive list of Ethiopian flies 
 distinguished by their black or blue bodies and wings, which 
 contrast with their red heads, like Bromophila caffra, Macq., 
 Clitodocafenestralis, Macq., Platystoma ruficeps, Enderl., etc. 
 
 Head very broad, entirely dark red, \vith short golden pubescence 
 on the face, a small amount of similar pubescence on the central 
 portion of the frons, silvery hair on the lower hind borders of the 
 eyes, and with some white erect hairs on the lower part of the head ; 
 occipital border very broad at the vertex, Stratiomyia-like ; trans- 
 verse furrow in middle of frons distinct ; ocelli aggregated into a 
 small black dot, on either side of which there is a furrow, which 
 anteriorly converges towards its fellow; a shorter furrow runs 
 obliquely from the upper angle of each eye to the vertex ; above the 
 base of the antennae there is a triangular smooth area of a blackish 
 colour, which is connected by a furrow with the anterior extremity 
 of the ocellar furrows ; eyes shining black, comparatively small, 
 and oval ; opening of buccal cavity small ; proboscis reddish, re- 
 tracted ; antennae long, entirely red, the third joint paler than the 
 
MICRODOX. 131 
 
 first t\vo joints, which are almost baiv, with very short black 
 pubescence ; third joint cylindrical, a little longer than the first, 
 with a reddish and rather short arista, which is not thickened ; 
 second joint half as long as the first. Thorax and scutellum 
 entirely black, and dull owing to being densely and coarsely punctate ; 
 the thorax is bare or has only a hardly visible black pubescence, 
 while only the upper .side of the sternopleura is whitish pollinose ; 
 inetanotum shining black; hind part of ineso-, ptero-, and mcta pleura 
 smooth, not punctate, dull, with some faint furrows. Scutellum 
 semicircular, rather small, like the thorax, with trace of a middle 
 longitudinal furrow. Abdomen conical, broader than the thorax at 
 the base and similarly punctate, dull, bare, with very short black 
 pubescence ; fourth segment one and a half times as long as the 
 third, fifth half as long as the fourth, reddish on the hind border 
 
 Fig. 23. Microdon crythrocephalvs, sp. n., $. X 3. 
 
 towards the middle ; third, fourth, and fifth segment with two 
 oblique stripes of white dust on each side, the outer being more 
 distinct. Belly black ; ovipositor reddish. Legs bare, with short 
 yellowish pubescence on the tibiae, entirely red, except coxae and 
 hind trochanters, which are black, and front and hind tarsi, which 
 are somewhat infuscated ; first joint of hind tarsi not swollen. 
 Wings broad, blackish, with purplish reflexions, but with grey 
 patches towards the middle of the cells of the posterior half, only 
 black borders to the veins being sometimes present ; subapical cross- 
 vein strongly recurrent ; stump on the third vein very long , sub- 
 apical and discal cells with very much rounded lower outer cornel's, 
 each of which is sometimes provided with a short stump. 
 
 Type $ i from Kasai near Kampala, Uganda, 30. viii. 1911 
 (#. A. Neavc) ; another specimen from Western Ankole, Uganda. 
 4,500-5, 000 ft., " open short grass country, with some bush," 
 10-11. x. 1911 (same collector}. 
 
132 SYEPHTDJ!. 
 
 137. Microdon luteiventris, sp. n. 
 
 cT $ . Length of body in the male 14 mm., in the female 17 mm. ; 
 length of antenna 4'5 mm. 
 
 A broad and plump black species with bright yellow face and 
 abdomen, and with longer pubescence than in the two preceding 
 species. 
 
 This species seems to be very nearly allied to my M. erythros, 
 from the Congo, which, however, has a bright red abdomen, like 
 that of the Hymenopteron Euaspis erythros, Meun. 
 
 Male. Head black, the face yellow from the base of the antennae 
 to the margin of the buccal cavity, but the jowls are black ; occiput, 
 face, and a transverse band across the centre of the frons clothed 
 with dense but short erect hairs of a pale yellowish colour ; frons 
 elsewhere clothed with black hair, but above the antennae with a 
 triangular, smooth and shining, bare area ; frons very finely punc- 
 tate ; ocelli not so close together as in the other species ; eyes 
 shining black, with facets of equal size, the inner angle of the eyes 
 somewhat convergent, the transverse furrow on the frons not very 
 pronounced; face gently convex, very broad, broader below than 
 above ; jowls with a broad depression near the margin of the buccal 
 cavity ; antennae black, first and second joints clothed with black 
 hairs ; third joint a little shorter than the first, with a black, thin, 
 rather long arista ; second joint less than one-third the length of 
 the first ; opening of buccal cavity small ; proboscis yellowish. 
 Thorax black, subquadrate, finely punctate, clothed with rather 
 dense yellowish pubescence, which forms a broad band in front, 
 another narrower one on the suture and a smaller one before the 
 scutellum ; the hind part of the dorsum is clothed with short black 
 hair; pleurae on the fore half with yellowish pubescence, on the 
 hind half bare and smooth. Scutellum rather small, semicircular, 
 with long, erect, yellowish hairs. Squamulae black, the alar yellow- 
 fringed, the thoracic black-fringed ; halteres pale yellowish. Ab- 
 domen at base much broader than the thorax ; the first segment 
 is black, the other segments and the belly are yellow, with short 
 yellowish pubescence on the sides, base, and end, and with black 
 pubescence on the middle, where the surface is somewhat dull ; 
 genitalia yellow ; abdomen very finely punctate ; third segment 
 twice as long as the second ; fourth two and a half times as long as 
 the third. Legs short and stout, entirely sinning black, rather 
 thickly clothed with black hair ; claws black, pulvilli dark yellowish ; 
 tarsi broad and short, very shining above, especially the first joint 
 of the hind tarsi, which is rather thick Wings lightly infuscated, 
 with strong black veins and sometimes with broad black borders 
 along the veins ; outer corners of subapical and discal cells rounded, 
 and without appendices ; stump on third vein long. 
 
 Female. Like the male, but broader, longer, and darker-coloured ; 
 head as in the male, with broader frons, and only on the occiput 
 and on upper part with black hairs; hind occipital border less 
 
MICRODOX. 133 
 
 developed ; hair on thorax, scutellum, and pleursB entirely black ; 
 alar squamula black-fringed like the thoracic ; abdomen darkened 
 towards the middle of the fourth and fifth segments, the sutures of 
 the third, fourth, and fifth segments almost obliterated in the middle ; 
 legs as in the male ; wings more blackened in mature specimens. 
 
 Type , a single specimen from British East Africa, Yala River, 
 southern edge of Kakumega Forest, 4,800-5,300 ft., 21-28. v. 1911 
 (S. A. Neai-e) ; tt/pe $ , from Uganda Protectorate, Mount Kokan- 
 jero, S.W. of Elgon, 6,400 ft., 7-9. via. 1911 (S. A. Neave); an 
 additional female specimen from Uganda, Western Ankole, 4,500- 
 5,000 ft., "in forest," 12-14. x. 1911 (S. A. Neave). 
 
 138. Microdon inermis, Loew. 
 
 A black species, with bkck wings and dark red abdomen and 
 legs. 
 
 I assume this specimen to belong to Loew's species, since it corre- 
 sponds exactly to the description ; the stump on the third vein is 
 not wanting, as stated by Prof. Herve-Bazin (Rev. Zoolog. Afric. 
 iii. 1913, p. 98), but is long and well developed, as in the allied 
 species. Pubescence very short ; basal joints of the antennae bare ; 
 ocelli close together. Loew's description was based on a male from 
 Caffraria, and Herve-Bazin has described a female from Katanga. 
 The female is like the male ; the frons and face are very broad, the 
 the latter with well-defined furrows running from the base of the 
 antennae to the jowls ; sutures between the last abdominal segments 
 obliterated towards the middle ; halteres whitish yellow, not reddish 
 as in the male ; wings blue-black. There is no difference between 
 the sexes in the colour of the pubescence on the head, thorax, and 
 scutellum. 
 
 A male specimen from British East Africa, 13 miles north of 
 M'ba^ori's Village, towards Meru, 13. ii. 1911 (T. J. Anderson) ; a 
 female from M bagori's Village, edge of Kenia Forest, 5,000 ft., 
 12. ii. 1911 (same collect or). 
 
 139. Microdon pallidus, sp. n. 
 
 c? $ . Length of body 10-12 mm., of antenna 4 inm. 
 
 Very like the preceding species, but distinguished by its smaller 
 size and the paler coloration of the abdomen, legs, and wings. 
 
 The two sexes are alike in coloration. 
 
 Head bkck, punctate, and dull, with very short yellowish pubes- 
 cence ; frons of the male contracted below the middle, and with a 
 deep transverse groove connecting the inner angles of the eyes ; 
 frons of the female broad, and with a less distinct transverse groove; 
 ocelli fairly close together ; face without the distinct furrows seen 
 in the preceding species ; occipital border in the female, from the 
 vertex to the jowls, of a dark reddish colour ; head below clothed 
 with long erect white hair ; antennae long, the first and the second 
 segments clothed with short black hair; third joint shorter than 
 
13-i SVIU'HID.E. 
 
 the first, with a thin black arista; second joint about one-third as 
 long as the first. Thorax entirely dull black, punctate, with short 
 yellowish pubescence ; hind part of the pleurae moderately shining, 
 and exhibiting a series of narrow furrows ; scutellum small, semi- 
 circular, punctate, and pubescent like the thorax. Squamulse white, 
 with short white fringes ; halteres pale yellowish. Abdomen in- 
 cluding the ventral surface entirely of a pale tawny colour, finely 
 punctate and dull ; its pubescence is very short and yellowish ; 
 genitalia of the male and ovipositor of the female of the same colour 
 as the abdomen ; first segment slightly infuscated below the 
 scutellum, second segment short, third twice as long as the second, 
 fourth two and a half times as long as the third, fifth in the female 
 as long as the fourth ; the sutures are obliterated towards the 
 middle, the oblique stripes of white dust on the sides are not very 
 noticeable, and in the female are almost wanting. Legs entirely 
 ochraceous, bare, and dull, only the coxae are black ; claws black, 
 pale at the base. Wings greyish hyaline, with black veins, which 
 have broad dark borders ; venation normal. 
 
 Type J , a single specimen from Uganda Protectorate, Northern 
 Buddu, 3,800 ft., 16-18. ix. 1911 (8. A. Nea-ve) ; type $ , a single 
 specimen from Uganda Protectorate, between Jinja and Busia or 
 M'bwago's, E. Busoga ("some forest") 3,800-4,000 ft, 28. vii.- 
 1 viii. 1911 (same collccfcr). 
 
 GROUP VI. (villosus, sp. n.). 
 
 This group is limited at present to a single species, which, how- 
 ever, is distinguished from any other by the very remarkable 
 structure of the antennae. The antennae are also carried in a 
 different manner ; instead of being pendulous they are erect and 
 curve outwards, as in certain Laphriince or in Callicera. The 
 second antennal joint is rudimentary ; the first is rather short ; the 
 arista is normal. The head and thorax are clothed with rather 
 long hair ; the scutellum is not armed with spines ; the ocelli are 
 wide apart ; the venation is entirely normal. 
 
 The bread head of the male, the structure of the antennae, and 
 the \vay in which these organs are carried give to this species a 
 very singular facies. and I was at first inclined to erect a special 
 genus for it. But I think it better to include it for the present 
 in Microdon, s. 1., on account of the fact that, apart from the head, 
 it shows no structural differences, and that the cephalic characters 
 a re also indicated in other species for example, the North- American 
 M. pacJiysfylitm, Will., which has a very broad frons in the male 
 and a third' antennal joint two and a half times as long as the first, 
 but the third joint is not erect and is pendulous as usual. In 
 the Javanese J\I. vespiforwis, de Meij., the third antennal joint is 
 nearly three times as long as the first, but is pendulous, and the 
 second joint is short but well developed. 
 
MICHODOX. 135 
 
 140. Microdon villosus, sp. n. 
 
 c? . Length of the body 12 mm., of the antennae 4 mm. 
 
 A rather hairy species, readily distinguishable owing to the 
 structure and mode of carriage of its antennae. 
 
 Head very broad, distinctly broader than the thorax, bronze- 
 black, finely punctate, moderately shining, clothed with rather 
 long, erect, yellowish hairs, which on the face show golden re- 
 flexions ; frons very broad for a male, the shining black equally 
 facetted eyes being rather small, and without distinct prominent 
 angles towards the middle of frons ; the transverse frontal furrow 
 is, however, well marked ; ocelli rather far apart, arranged in an 
 equilateral triangle ; face gently convex, as broad as the frons, 
 becoming broader below ; it is black in the middle, with a broad 
 yellow border on each side ; jowls with a small, broad, but shallow 
 pit on each side; opening of buccal cavity small, the .proboscis 
 sc-arcely projecting. Antennae erect, entirely black, the first joint 
 shining and almost bare ; second joint very small ; third dull, 
 curved, almost arched, thickened towards the middle, about four 
 
 Fig. 24. Microdon villosus. sp. n. Head of male. XlO. 
 
 and a half times as long as the first ; arista situate at base of third 
 segment, of a dark yellowish colour, thin, about half the length of 
 the third joint. Thorax shining aeneous, very finely punctate, 
 clothed on clorsum with rather long and dense bright reddish hair, 
 which becomes yellowish on the pleurae, the hind part of which is, 
 however, bare as usual. Scutelluni small, semicircular, shining 
 black, clothed with long yellowish hair, with an unarmed hind 
 border. Squama!* whitish, with yellow borders and rather long 
 white fringes ; halteres pale yellowish. Abdomen at base broader 
 than the thorax, attenuated behind, conical, the second segment de- 
 pressed in the middle, but not produced at the sides ; third segment 
 about as long as the second, fourth two and a half times the length 
 of the third; all the sutures are distinct; the abdomen is black, dull, 
 dark yellowish in the middle at the base, with a few rather long 
 yellowish hairs on the sides at the base and on the hind border of 
 the basal segments ; on each side of the second and third segments 
 there are two indistinct oblique stripes of yellowish pubescence 
 
gcnitalia dark yellowish brown, clothed with yellow hair; venter 
 black, with rather long yellow hair on the hind borders of the 
 segments. Legs aeneous black, with rather long and dense, yellow 
 and silky shining hair, chiefly on the tibiae ; claws black, pulvilli 
 dark yellow-brown ; tarsi not very broad, first joint of hind tarsi 
 not thickened. Wings greyish hyaline, with a' light yellowish 
 tinge and yellow veins (the specimen is perhaps immature) ; lower 
 outer corners of subapical and discal cells rounded and withom; 
 appendices. 
 
 Type cJ , a single specimen from Uganda Protectorate, plains 
 N.E. of Lake Edward, 3,200ft., "in the open," 15-16. x. 1911 
 (S. A. Heave). 
 
 Genus 2G. PTILOBACTRUM, nov. 
 
 Closely resembling a \Bficrodon belonging to Group V., and with 
 similar venation, but distinguished by the bivadth of the head, 
 by the face being furrowed, and by the unusual shape of the 
 antennae. 
 
 Head of male much broader than the thorax : eyes bare, shining 
 black, very small, oval, with small equal-sized facets, without con- 
 
 Fig. 25. Ptilobactnnn neavei, sp. n., $. x4. 
 
 vergeri t angles in the middle of the frons ; frons enormously broad, 
 without a trace of the usual median transverse groove, but with a 
 distinct furrow running from the upper corner of each eye to the 
 ocelli ; this furrow is perhaps homologous with the usual median 
 transverse groove ; face enormously broad, broader than long, pro- 
 minent towards the middle, and provided with two broad furrow 
 
PI II, 015 ACT HUM. 137 
 
 running obliquely from the base of antennae to the jowls, but not 
 reaching the inferior corners of the eyes ; these furrows seem to 
 be adapted for the reception of the thiixl antenna! joints. Ocelli 
 near together, but not in contact ; opening of buccal cavity small, 
 proboscis thin, somewhat projecting. Antennae very peculiar; first 
 joint shining black, comparatively short, almost bare ; second very 
 short, but distinct ; third pendulous, extremely elongate, five times 
 as long as the first, dark grey, clothed throughout its whole length 
 with long, thin, soft hairs, which are arranged like feathers on the 
 inner and outer sides ; the base of the third joint is excavated on 
 the outside, and at this point there is to be observed a very short 
 rudiment of the arista ; the extreme tip of the third segment is 
 
 Fig. 26. PtHobactrum iifurei. ^p. n. 
 Left antenna from outer side, X 12. 
 
 bare, and ends obliquely. Pubescence on head, thorax, and scu- 
 tellum rather long, but not dense. Scutellum simple, rounded. 
 Abdomen conical, a little broader than the thorax at base, the 
 second segment simple, the third a little longer than the second, 
 the fourth twice as long as the third. Legs short and stout, 
 almost bare. Wings with usual venation, the subapical cross-vein 
 strongly recurrent, the lower outer angles of the subapical and 
 dorsal cells acute and not provided with appendices, the stump on 
 the third vein of moderate length, the small cross-vein situate on 
 the basal third of the discal cell. 
 
 Type : P. neavei, sp. n. 
 
 In the North-American species, M. packystylum, Will., referred 
 to above, the arista is also very short about a third of the length 
 of the last antennal joint, which is, however, quite bare. 
 
 141. Ptilobactrum neavei, sp. n. 
 
 Length of body 13 mm. ; length of the third antennal joint 
 alone 4- 5 mm. 
 
 A black species, with the second and third abdominal segments 
 yellow, the third having on each side a broad round black spot. 
 
 Head black, punctate, moderately shining ; frons near the eyes, 
 and jowls partly of a dark yellowish colour ; the dark yellowish 
 hair along the vertex is very long and erect, while on the middle 
 of the frons at the sides the hair is short ; pubescence on face pale 
 
138 STKPHID.U. 
 
 yellowish, with silky reflexions ; hair on the third antennal joint 
 of a dark grey colour ; rudiment of the arista reddish ; proboscis 
 pale yellow ; head below clothed with long whitish hair. Thorax 
 and scutellum entirely black, punctate, with rather long but slant- 
 ing pale yellow pubescence ; front part of the pleuras with rather 
 long, erect, whitish hair, hind part bare ; scutellum semicircular, 
 with a faintly marked median longitudinal furrow. Metanotum 
 shining black. Squamulae white, with short white fringes ; halteres 
 pale yellowish. First segment of the abdomen black, with a 
 narrow yellow hind border on each side ; second entirely yellow ; 
 third yellow, with a broad rounded black spot on each side, which 
 reaches the fore border but not the sides ; fourth black, with 
 lateral borders narrowly yellow, and also bearing a triangular dark 
 
 Fig. 2T.Ptilobactrum neavei, sp. n., tf. 
 Head in profile, X 7. 
 
 yellow median spot at the distal extremity ; abdominal pubescence 
 very short, whitish, but black along the middle line ; belly black, 
 yellowish pubescent ; genitalia black. Legs bare, the femora 
 shining, the tibia? whitish - dusted ; coxae and hind trochantcrs 
 black ; femora and tibiae yellow, the latter with a blackish spot 
 above at tip; tarsi broad and flat (especially the front pair), black, 
 with yellowish pubescence ; first joint of hind tarsi not thickened ; 
 claws black, pale at the base ; pulvilli yellow. Wings hyaline, 
 shining, with a faint pale yellowish tinge ; veins yellow, more or 
 less darkened outwards ; vena spuria very faintly marked. 
 
 Type c? , a single specimen from British East Africa, Upper 
 Nzoia River, 5,100-5,400 ft., 5-7. vi. 1911, collected by S. A. Neave, 
 in whose honour this strange and beautiful insect is named. 
 
 Genus 27. CERIOIDES, Rondani (1850). 
 
 Of this genus there are in the collection only six specimens, 
 which, however, belong to five different species or varieties. The 
 Ethiopian species of Cerioides at present known, some of which 
 were very recently described in a valuable paper of Prof. Herve- 
 Bazin. number thirteen. 
 
CKETOIDEs. 139 
 
 Those before me can be distinguished as follows : 
 
 1 (6) Antenna) situate on a long petiole ; a strong 
 
 cross-vein between auxiliary and first longi- 
 tudinal veins at the end of the auxiliary ; 
 kink in the third vein broad and flat (in 
 all the species here considered without an 
 appendix, which, however, is present in 
 some other cases) ; postical cross-vein 
 alm< st in the same line as the subapical 
 one ; elongate species of considerable size, 
 from 16 to L } mm. in length, with a club- 
 shaped abdomen, the distal extremity being 
 expanded into an oval. 
 
 2 (5) Scutelluin yellow ; thorax and abdomen with 
 
 jellow or reddish spots or stripes; antennae 
 and legs for the most part reddish. 
 
 3 (4) Pleuire with a broad, oblique, bright yellow 
 
 stripe; fnce yellow with a median narrow 
 brown stripe and a black stripe below on 
 each side ; hind femora each with a rather 
 narrow yellow spot pulchra, H.-B. 
 
 4 ''3) Pleiiral stripe of a dark red colour, instead of 
 
 bright yellow : face red, with a broad 
 yellow median stripe, which is bordered 
 with black; no black stripes on the face 
 below; hind femora each with a very 
 broad yellow ring occupying more than 
 half the length of the joints neavei, sp. n. 
 
 5 (2) Scutelluni black ; body of very large size aid 
 
 almost entirely black, without- light mark- 
 ings ; antenna} and legs black, the femora 
 slightly tinged with dark red towards the 
 base ." speiseri, H.-B. 
 
 6 (1) Antennae without petiole; no cross-vein at 
 
 end of the auxiliary vein ; kink in the third 
 vein narrow and deep, without appendix; 
 postical cross-vein reaching the fourth 
 vein almost opposite the kink, its upper 
 end being therefore nearer the base of the 
 wing than is the base of the subapical vein ; 
 shorter species of smaller size, from 10 to 
 1 1 mm. in length, with a short and rounded 
 abdominal club. 
 
 7 (8) Wings with an isolated dark spot on fore 
 
 border near the apex ; third and fourth 
 abdominal segments each with a narrow 
 yellow band on the hind bolder ; hind 
 femora yellow at the base bezzii, H.-B. 
 
 8 (7) Wings with a continuous dark fore border; 
 
 third and fourth abdominal segments with 
 broad yellow hind borders ; hind femora 
 not yellow at the base var. maryinalis, n. 
 
 142. Cerioides pulchra ; Herve-Basin (1913). 
 
 A beautiful species, very closely allied to liopei, Saund., but 
 distinguished ly having the lateral stripes on the thorax dark 
 
SYRI'HID.-E. 
 
 reddish and less distinct, instead of broad and yellow, the first 
 abdominal segment bright yellow with a black median spot, and a 
 yellow ring on the middle of the hind femora. The dark costal 
 border of the wings is not so black as in Saunders's figure, but pale 
 brownish yellow and darkened towards the end, as stated in 
 Saunders's description. 
 
 A single female specimen from Mid-Luangwa R., N.E. Ehodesia, 
 2o. viii. 1910 (8. A. Neave}, measuring 16 mm. in length, with- 
 out antennaj. The type was obtained in Katanga. 
 
 143. Cerioides neavei, sp. n. 
 
 3 . Length of the body excluding the antennae 16 to 17 mm. 
 
 Closely allied to C. hopei and to the preceding species, but distin- 
 guished by the face and the pleural stripes being red instead of 
 bright yellow, by the facial stripe being broadly bordered with 
 black, and by the broadly yellow hind femora. I think, however, 
 
 Fig. 28. Cerioides neavei, sp. n., $ . X 3. 
 
 that it is quite possible that the present and preceding species are 
 only colour- varieties of O. hopei, Saunders; C. ammopliilina, Speiser 
 (1910), seems also to be a very closely allied species. 
 
 Head wholly red, passing to yellowish on the sides of the face ; 
 on the middle efface there is a yellow stripe, running from the base 
 of the antennal petiole to the margin of the buccal cavity, but not 
 reaching the latter ; this stripe becomes broader towards the middle, 
 and is bordered by black lines, which are brownish beneath ; face 
 below with no trace of black bands, which are likewise absent on 
 the jowls ; frontal triangle with an indistinct median longitudinal 
 
CERIOIDES. 141 
 
 yellowish stripe ; eyes dark brown, bare, meeting at a point in the 
 middle of the frons, with facets of equal size ; ocelli close together, 
 surrounded by a black spot ; occipital upp^r border much produced, 
 with a fringe of pale hair, which is continued below ; frontal tri- 
 angle clothed with short and soft white hair ; face bare, lightly 
 dusted with white pollen ; proboscis black, with dark brown labella. 
 Antennal petiole long and strong, of the same red colour as the 
 head, antennae dark red, first and second joints of almost equal 
 length ; third joint pale yellowish, shorter than the second, whitish- 
 dusted, with a terminal thin, acute style. Thorax black, dull, 
 with short dark grey pubescence ; shoulders and lateral stripes from 
 them to the scutellurn dark red ; pleura? bare, the stripe which is 
 yellow in liopei is here of a red, rather shining colour. Scutellurn 
 entirely yellow, narrowly reddish towards the base. Squamulae 
 dark yellowish, with short whitish fringes; halteres pale yellow. 
 Abdomen elongate, the petiole being as long as the oval expanded 
 portion : first segment bright yellow, with a quadrate dull bkck 
 spot in the middle reaching the hind border, and with rather long 
 pale hair ; second reddish brown, with a yellow, somewhat indistinct 
 longitudinal stripe on each side, black towards the hind border ; 
 third and fourth segments black, sparsely dusted with grey pollen, 
 and clothed with very short black pubescence, the hind border of 
 the third segment narrowly reddish towards the sides ; genitalia 
 red, clothed with short black hair: venter grey, clothed with short 
 black hair. Coxae of the four anterior legs dark red, the fore tibiae 
 above near the base each with a small and short yellow stripe, the 
 tarsi slightly darkened ; hind legs with brown coxae, the femora 
 narrowly blackish towards the base, and beyond the blackish area 
 with a broad yellow ring, the apical third, the tibiae, and the tarsi 
 red. Wings with the costal border as far as the third vein of a 
 yellowish-brown colour, becoming blackish at the tip ; there is also 
 a brown -yellowish border along the fifth longitudinal vein, dilated 
 at the end and there extending over the apex of the second basal, 
 and over the base of discal and third posterior cells ; kink in third 
 vein flat and broad, without appendix ; subapical and postical cross- 
 veins placed almost in the same line, with short appendices. 
 
 Type c? , from Uganda Protectorate, Kafu River, between Hoima 
 and Kampola, 3,oOO ft., 29-31. xii. 1911 (8. A. Ntve)\ an ad- 
 ditional specimen, between Jinja and Busia or M bwago's. E. Busoga 
 ("some forest"), 3,800-4,000 ft, 28. vii.-l. viii. 1911 (same 
 collector). 
 
 Xamecl in honour of the collector, who has made so many im- 
 portant discoveries in the dipterous fauna of these Regions. 
 
 144. Cerioides speiseri, Herve-Bazin (1913). 
 
 A black species of very large size allied to C. brunneipennis, Lw., 
 
 but at once distinguished by the almost entirely black antennae and 
 legs. 
 
 To the present species is also allied C. congolensis, Bezzi, a short 
 
142 STKPITTD.T-:. 
 
 diagnosis of whicli, based on a $ from the Congo, was given by me 
 in 1908. To separate C. congolensis from C. brumieipennis is not 
 altogether easy, but the following are the distinctive characters : 
 (1) the black costal border of the wings does not extend beyond the 
 third longitudinal vein ; (2) the face is of a pale yellow colour, 
 with two thin brown lines forming a median band, which is some- 
 what dilated towards the middle; (3) there is no A -shaped strips 
 on the face. The antennae and legs, however, are reddish as in 
 brunneipennis, and the hind femora are also without the yellow 
 spot on the upper side. As Prof. Herve-Ba/in has only described 
 the male (from Katanga), I will give here some notes on the 
 female. 
 
 Face very produced beneath ; frons in front grey-dusted towards 
 the middle ; antennal petiole blackish brown above and reddish 
 below ; all three antennal joints of almost equal length ; occipital 
 border at vertex very prominent, but narrow. Abdomen entirely 
 similar to that of the male, with a very long stalk and the distal 
 portion expanded into an oval. 
 
 Type $ , a single specimen from Uganda Protectorate, Doro or 
 Durro Forest, Toro, 4,000-4,500 ft., 25-29. x. 1911 (8. A. Neavr). 
 
 145. Cerioides bezzii, Herve-Bazin (1913). 
 
 A small, short, very peculiar species, readily distinguishable owing 
 to its sessile antennae, to the singular venation and characteristic 
 pattern of the wings, and to the abdominal club being rounded. It 
 is very probable that the present species is the same as C. divi&a, 
 Walker. 
 
 A single female specimen from Salisbury, Mashonaland ( G. A. K. 
 Marshall) ; the type is from Elisabethville, Katanga. 
 
 Var. marginalia, var. n. 
 
 $ . Length of body 11 mm. 
 
 Coloration as in the preceding, but the yellow hind borders of 
 the abdominal segments are broader ; the hind femora have scarcely 
 any yellow at the base ; the wings have the costal border entirely 
 dark brown, fr,om the base of the marginal cell to the apex of 
 the wing. 
 
 Type $ , a single specimen from Uganda Protectorate, Budongo 
 Forest, Unyoro, 3,400 ft., 11-15. xii. 1911 (S. A. Neave). 
 
 In these two forms (bezzii and marginalia) the vena spuria is thin, 
 but strongly chitinized and deep black ; the first abdominal segment 
 shows at the base, in front of the halteres, two distinct but short 
 spines, one on each side, which are less developed in the species of 
 the first group. 
 
ALPHABETICAL INDEX. 
 
 abyssinica (Syritta), 106. 
 
 acantholepidis (Microdon), 121. 
 
 aculeipes (Syritta), 106. 
 
 adligatus (Syrphus), 32. 
 
 adligatus, vor. melas (Syrphus), 33. 
 
 adligatus, var. tricolor (Syrphus), 
 32. 
 
 aegyptium (Xanthogramma), 37. 
 
 aenigma (Mallota), 99. 
 
 abacus (Protylocera), 62. 
 
 africana (Asarcina ericetornm, rar.), 
 26. 
 
 africanus (Helophilus (Mesembrius)), 
 97. 
 
 albifacies (Asarcina ericetomm, var.), 
 26. 
 
 ammophilina (Cerioides), 140. 
 
 amoena (Asarcina), 27. 
 
 Amphoterus. 116. 
 
 analis (Eristalis), 80. 
 
 andersoni (Lathyrophthalmus enzo- 
 nus, var.), 82. 
 
 angustata (Asarcina), 22. 
 
 annulatum (Melanostoma annulipes, 
 var.). 21. 
 
 annulipes (Melanostoma). 21. 
 
 annulipes, var. annulatum (Melano- 
 stoma), 21. 
 
 annulipes, rar. automenes (Melano- 
 stoma), 21. 
 
 annulipes. var. gymnocerum (Melano- 
 stoma), 21. 
 
 annulipes, var. mauritianum (Melano- 
 stoma), 21. 
 
 annulipes, rar. pyrophaenoides (Mela- 
 nostoma). 21. 
 
 apophysata (Protylocera), 64. 
 
 armipes (Eumerus), 113. 
 
 armipes (Syritta), 105. 
 
 Asarcina, 21. 
 
 aurea (Graptomyza), 59. 
 
 aurigera (Phytomia). 68. 
 
 anstcni (Syrittu). l'>7. 
 
 automenes (Melanostoma annulipes, 
 
 var.), 21. 
 axinecerus (Eumerus), 115. 
 
 Baccha, 38. 
 
 barclayi (Eristalodes), 89. 
 
 bezzii (Cerioides), 142. 
 
 bezzii, var. marginalia (Cerioides), 
 
 142. 
 
 bituberculatum (Melanostoma), 20. 
 borbonicus (Paragus), 12. 
 brachypterum ( Xanthogramma), 37. 
 braueri (Syrphus), 38. 
 brevicornis (Microdon), 123. 
 brevis (Baccha), 38, 50. 
 brunneipennis (Cerioidee), 141. 
 bulbus (Syritta), 106. 
 bullata (Phytomia (Megaspis)), 67. 
 bulligera (Phytomia (Megaspis)), 71. 
 
 casrulea (Ehingia), 54. 
 caerulescens (Ehingia), 54. 
 caerulescens, rar. fuscipes (Rhingia), 
 
 54. 
 
 calopus (Xanthogramma), 38. 
 capensis (Helophilus (Mesembrius)), 
 
 95. 
 
 capensis (Syrphus), 33. 
 Cerioides, 138. 
 Chasmomma, 102. 
 Chrysogaster, 15. 
 Chrysotoxum, 118. 
 cinctifacies (Syrphus). 34. 
 claripennis (Baccha), 38. 
 claripennis (Syrphus), 33. 
 cognatus (Syrphus), 33. 
 congolensis (Cerioides), 141. 
 conifrons (Baccha), 40. 
 continum (Chrysotoxum), 118. 
 corollas (Syrphus), 33. 
 crassipes (Simoides), 76. 
 cribratus (Amphoterus). 117. 
 eurta (Phytomia). 7-'). 
 
144 
 
 ALPIIAEEIICAL IXDEX. 
 
 curtus (Eristalis), 73. 
 cyanipennis (Helophilus (Mesem- 
 brius)), 97. 
 
 dasyops (Eristalis), 93. 
 dentatum (Xanthogramma), 38. 
 dentipes (Acrochordonode -), 35. 
 dibaphus (Protylocera), 62. 
 dibaphus (Xylota), 62. 
 dissimilis (Lathyrophthalmus), 87. 
 dolichocerus (Paragus), 14. 
 dulcis (Lathyrophthalmus), 87. 
 
 elliotii (Protylocera), 62. 
 
 ephippium (Phytomia), 75. 
 
 eremophila (Asarcina), 28. 
 
 eiicetorum (Asarcina), 25. 
 
 ericetorum, var. africana (Asarcina), 
 26. 
 
 ericetorum, rar. albifacies (Asarcina), 
 26. 
 
 ericetorum, rar. gemmata (Asarcina), 
 26. 
 
 ericetorum, rar. punctifrons (Asar- 
 cina), 26. 
 
 ericetorum, rar. typica (Asarcina). 
 25, 27. 
 
 ericetorum, var. usambarensis (Asar- 
 cina), 26. 
 
 Eristalis, 92. 
 
 Eristalodes, 87. 
 
 erratica (Megaspitt), 73. 
 
 erratica (Phytomia (Megaspis)), 73. 
 
 erythrocephalus (Microdon), 130. 
 
 eiythros (Microdon), 132. 
 
 Eumerus, 108. 
 
 euryptera (Baccha), 38. 
 
 eutaeniatus (Syrphus), 31. 
 
 euzonus (Lathyrophthalnms), 82. 
 
 euzonus, rar. andersoni (Lathyroph- 
 thalmus), 82. 
 
 extranea (Baccha), 47. 
 
 fasciata (Syritta), 106. 
 
 feae (Eumerus), 115. 
 
 feae (Syrphus), 34. 
 
 felisc (Xanthogramma), 37. 
 
 femoralis (Phytomia (Shnoides), 
 villipes, rar.), 76. 
 
 femorata (Xylota), 103. 
 
 femoratum (Chasmomma), 103. 
 
 fiorii (Asarcina), 27. 
 
 flaveolus (Lathyrophthalmus), 85. 
 
 flavicornis (Baccha), 38, 48. 
 
 flariventris (Syritta), 105. 
 
 floripeta (Melanostoira), 20. 
 
 fronto (Phytomia (Eristalis), 74. 
 
 fronto, rar. melas (Phytomia (Erista- 
 lis)), 75. 
 
 fucoides (Phytomia), 74. 
 
 fuscicornis (Eristalodes), 91. 
 f'uscipes (Rhingia caerulescens, rar.), 
 
 54. 
 fnscotibiale (Xanthogramma), 37. 
 
 gemmata (Asarcina ericetorum, var.), 
 
 26. 
 
 grahami (Baccha), 43. 
 Graptomyza, 55. 
 gymnocerum (Melanostoma annulipos, 
 
 rar.), 21. 
 
 gymnops (Lathyrophthalmus), 81. 
 gypseisquama (Stenaspis). 62. 
 
 haemorrhoa (Protylocera), 62. 
 Helophilus, 94. 
 helva (Baccha). 44. 
 hirsuticeps (Asarcina). 28. 
 hirticeps (Syrphus), 33. 
 hopei (Cerioides), 140. 
 
 iohneumonea (Baccha). 41. 
 illucens (Microdon), 121. 
 incisa (Phytomia), 76. 
 incisus (Eristalis), 76. 
 inermis (Microdon). 127, 133. 
 inflaticornis (Syrphus), 31. 
 infuscatum (Melanostoma), 21. 
 ingratus (Helophilus (Mesembi-ius), 
 
 97. 
 
 intermedium (Ghrysotoxum), 118. 
 intersectus (Syrphus). 33. 
 
 javanum (Xanthogramma). 38. 
 krocberi (Phytomia), 69. 
 
 laavigata (Chrysogaster (Orl honeura), 
 
 18. 
 lagopus (Helophilus (Mesembrius)), 
 
 95. 
 
 Lathyrophthalmus, 77. 
 Liogaster, 16. 
 
 longicome Xanthogramma, 37. 
 long-iventris (Paragils), 13. 
 lutea (Ehingia), 51. 
 luteiventris (Microdon), 132. 
 
 macrops (Eristalodes), 89. 
 maculata (Milesia), 93. 
 maculipennis (Eumerus), 112. 
 Mallota, 98. 
 
 marginalis (Cerioides bezzii,rar.), 142. 
 marginata (Baccha), 47. 
 marshalli (Paragus), 13. 
 mauritianum (Melanostoma annul ipes, 
 
 rar.), 21. 
 
 melanocerus (Merodon), 101. 
 melanops (Lathyrophthahnus), 83. 
 Melanostoma. 18. 
 
ALPHABETICAL INDEX. 
 
 145 
 
 melanura (Graptomyza), 55. 
 
 melas (Phytomia (Eristalis) fronto, 
 
 car.), 75. 
 
 melas (Syrphus adligatus, var.), 33. 
 mellinuin (Melanostoma), 18. 
 Merodon, 100. 
 MEBODONTIN^:, 61. 
 meromacriformis (Eriatalis), 93. 
 Mesembrius, 94. 
 metallina (Liogaster), 18. 
 Microdon, 119. 
 minor (Asarcina), 27. 
 minor (Helophilus (Mesembrius)), 96. 
 modestus (Lathyrophthalmus), 80. 
 morio (Helophilus (Mesembrius)), 98. 
 my das (Microdon), 128. 
 myiatropinus (Lathyrophthalmus), 81. 
 
 nasicus (Merodon), 102. 
 natalerme (Xanthogramma), 37. 
 natalensis (Phytomia (Eristalis)), 73. 
 neavei (Baccha), 46. 
 neavei (Cerioides), 140. 
 neavei (Phytomia), 70. 
 neavei (Ptilobactrum). 137. 
 nigra (Graptomyza), 60. 
 iiigricornis (Syritta), 105. 
 nigrifemorata (Syritta), 107. 
 ni^rita (Protylocera), 63. 
 
 obesus (Microdon), 124. 
 obliquus (Eumerus), 116. 
 Orthoneura, 15, 16. 
 
 pachymera (Mallota), 99. 
 
 pallidus (Microdon), 133. 
 
 Paragus. 11. 
 
 paulae (Eumerus), 111. 
 
 pellucens (Rhingia), 52. 
 
 pentaspila (Graptomyza), 56, 57. 
 
 pfeifferi (Xanthogramma), 37. 
 
 Phytomia, 65. 
 
 picta (Baccha), 38, 42. 
 
 picta, var. superpicta (Baccha), !:'. 
 
 pipiens (Syritta), 106. 
 
 planifacies (Merodon), 99. 
 
 plurivittatus (Eristalodes), 88. 
 
 poecilophthalma ( Chry sogaster (Ortho- 
 neura), 15, 16. 
 
 poecilops (Chrysogaster (Orthoneura) . 
 16. 
 
 praeusta (Baccha), 49. 
 
 Prionotomyia, 97. 
 
 Protylocera, 61. 
 
 Ptilobactrum, 136. 
 
 Ptilostylomyia, 55. 
 
 pubipennis (Phytomia), 71. 
 
 pulchra (Cerioides), 139. 
 
 punctifrons (Asarcina ei-icetorum. 
 
 punctulatus (Microdon), 125. 
 punctum (Baccha), 38, 48. 
 purpurea (Xylota), 62. 
 pycnosoma (Rhingia), 54. 
 pyrastri (Lasiopthicus), 31. 
 pyrophasnoides (Melanostoma annu- 
 lipes, var.), 21. 
 
 quadrimaculatus (Eumerus), 115. 
 quadrituberculata (Sphaerophoria), 35. 
 quinquelineatus (Lathyrophthalmua), 
 84. 
 
 redivivus (Syrphus), 34. 
 Rhingia, 50. 
 rostrata (Asarcina), 28. 
 rotundicorne (Xanthogramma), 37. 
 rufonasuta (Eristalomyia), 62. 
 rugosus (Microdon), 126. 
 
 sapphirina (Baccha), 38, 48. 
 -scaber (Eumerus), 114. 
 scalare (Melanostoma), 20. 
 echultzianus (Syrphus). 34. 
 semicaarulea (Rhingia), 52. 
 senegalensis (Syrphus), 37. 
 serratus (Eumerus), 111. 
 serratus (Paragus), 12. 
 seychellarum (Eristalodes), 91. 
 .signatus (Paragus), 11, 56^ 
 Simoides, 76. 
 epeiseri (Cerioides), 141. 
 Sphasrophoria, 35. 
 spiloptera (Chrysogaster (Ortho- 
 
 neura)), 16. 
 
 spinigera (Syritta), 105. 
 gpinigeretta (Syritta), 105. 
 stigmatica (Syritta), 106. 
 strigilatus (Helophilus (Mesembrius)), 
 
 96. 
 
 suavissima (Graptomyza), 55. 
 substitutus (Paragus tibialis, car.). 
 
 15. 
 
 superpicta (Baccha pictii, rar.\ 42. 
 Syritta, 104. 
 
 :, 11. 
 Syrphus, 29. 
 
 tabanoides (Lathyrophthalmus), 84. 
 taaniops (Eristalodes), 89, 90. 
 tenax (Eristalis), 74, 93. 
 testaceu.s (Microdon), 123. 
 tibialis. var. substitutus (Paragus), 
 
 15. 
 
 triangularis (Eumerue), 115. 
 triangulifera (Graptomyza), 55, 56. 
 tricolor (Syrphus adligatus. var.), 32. 
 trisect us (Syi-phus), 34. 
 txizonatos (Lathyrophthalmus), 84. 
 L 
 
146 ALPHABETICAL I^DEX. 
 
 trochanterica (Ischiodon), 37. villosus (Microdon), 134. 
 
 typica (Asarcina ericetorum, var.), 25. vitripennis (Syritta), 105. 
 
 vittata (Baccha), 38. 
 
 usambarensis (Asarcina ericetorum, vittigera (Graptomyza), 55. 
 var.), 26. VOLUCELLIN.E, 55. 
 
 varius (Microdon), 56. Xanthogramma, 36. 
 
 vicarians (Lathyrophthalmus), 86. xanthopoda (Graptomyza), 57. 
 
 villipes (Phytomia (Simoides)), 75. xanthopus (Lathyrophthalmus), 85. 
 
 villipes, var. femoralis (Phytomia xanthorrhoea (Protylocera), 62. 
 
 (Simoides), 76. XYLOTIN^;, 102. 
 
 PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET, B.C. 
 
B.M. (ST.H.). 
 No. 21. 
 
 LIST OF THE CURRENT 
 
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 Svo. II. 8s. 
 
 Catalogue of the Mammals of Western Europe (Europe 
 exclusive of Russia) in the Collection of the British 
 Museum. By Gerrit S. Miller. Pp. xv., 1019. 213 Text- 
 figures. [With Systematic and Alphabetical Indexes.] 
 1912, 8vo. 11. 6s. 
 
 Catalogue of the Heads and Horns of Indian Big Game 
 bequeathed by A. 0. Hume, C.B., to the British Museum 
 (Natural History). By R. Lydekker, F.R.S. Pp. xvi., 45. 
 16 Text-figures, and a Portrait of Mr. Hume. [With an 
 Alphabetical Index.] 1913, Svo. 2s. 
 
 BIRDS. 
 Catalogue of the Birds in the British Museum : 
 
 Vol. VII. Catalogue of the Passeriformes, or Perching 
 Birds. Cichlomorphce : Part IV., containing the con- 
 cluding portion of the family Timeliidae (Babbling 
 Thrushes). By R. Bowdler Sharpe. Pp. xvi., 
 698. Woodcuts and 15 coloured Plates. [With 
 Systematic and Alphabetical Indexes.] 1883, Svo. 
 U 6s. 
 
BRITISH MUSEUM (NATURAL HISTORY). 7 
 
 Catalogue of the Birds in the British Museum continued. 
 
 Vol. VIII. Catalogue of the Passeriformes. or Perching 
 Birds. Cichlomorphce : Part V., containing the 
 families Paridae and Laniidae (Titmice and Shrikes) ; 
 and Certhiomorphce (Creepers and Nuthatches). By 
 Hans Gadow, M.A., Ph.D. Pp. xiii., 386. Wood- 
 cuts and 9 coloured Plates. [With Systematic and 
 Alphabetical Indexes.] 1883, 8vo. 11s. 
 
 Vol. X. Catalogue of the Passeriformes, or Perching 
 Birds. Fringilliformes : Part I., containing the 
 families Dicseidae, Hirundinidae, Ampelidae, Mniotil- 
 tidae, and Motacillidae. By R. Bowdler Sharpe. 
 Pp. xiii., 682. Woodcuts and 12 coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1885, 
 8vo. II. 2s. 
 
 Vol. XI. Catalogue of the Passeriformes, or Perching 
 Birds. Fringilliformes : Part II., containing the 
 families Ccerebidae, Tanagridae, and Icteridae. By 
 Philip Lutley Sclater, M.A., F.R.S. Pp. xvii., 431. 
 Woodcuts and 18 coloured Plates. [With Systematic 
 and Alphabetical Indexes.] 1886, 8vo. 11. 
 
 Vol. XII. Catalogue of the Passeriformes, or Perching 
 Birds. Fringilliformes : Part III., containing the 
 family Fringillidae. By R. Bowdler Sharpe. Pp. xv., 
 871. Woodcuts and 16 coloured Plates. [With 
 Systematic and Alphabetical Indexes.] 1888, 8vo. 
 11. 8s. 
 
 Vol. XIII. Catalogue of the Passeriformes, or Perching 
 Birds. Sturniformes, containing the families Arta- 
 midae, Sturnidae, Ploceidae, and Alaudidse. Also the 
 families Atrichiidae and Menuridae. By R. Bowdler 
 Sharpe. Pp. xvi., 701. Woodcuts and 15 coloured 
 Plates. [With Systematic and Alphabetical Indexes.] 
 1890, 8vo. 11. 8s*. 
 
 Vol. XIV. Catalogue of the Pass^riformes, or Perching 
 Birds. Oligomyodce, or the families Tyrannidee, 
 Oxyrhamphidae, Pipridae, Cotingidae, Phytotomidae, 
 Philepittidae, Pittidae, Xenicidae, and Eurylaemidae. 
 By Philip Lutley Sclater, M.A., F.R.S. Pp. xix.,494, 
 Woodcuts and 26 coloured Plates. [With Systematic 
 and Alphabetical Indexes.] 1888, 8vo. 11. 4s. 
 
 Vol. XV. Catalogue of the Passeriformes, or Perching 
 Birds. Tracheophonce, or the families Dendrocolap- 
 tidae, Formicariidas, Conopophagidae, and Pteropto- 
 chidae. By Philip Lutley Sclater, M.A., F.R.S. 
 Pp. xvii., 371. Woodcuts and 20 coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1890, 
 8vo. 11. 
 
8 LIST OF PUBLICATIONS OP THE 
 
 Catalogue of the Birds in the British Museum continued. 
 
 Vol. XVI. Catalogue of the Picariae. Upupce and 
 Trochili, by Osbert Salvin. Coracice, of the families 
 Cypselidae, Caprimulgidse, Podargidae, and Steatorni- 
 thidse, by Ernst Hartert. Pp. xvi., 703. Woodcuts 
 and 14 coloured Plates. [With Systematic and Alpha- 
 betical Indexes.] 1892, 8vo. 1L 16s. 
 
 Vol. XVII. Catalogue of the Picariae. Coracice (contin.) 
 and Halcyones, with the families Leptosomatidae, 
 Coraciidae, Meropidae, Alcedinidse, Momotidae, Totidae 
 and Coliidae, by R. Bowdler Sharpe. Bucerotes and 
 Trogones, by W. R. Ogilvie Grant. Pp. xi., 522. 
 Woodcuts and 17 coloured Plates. [With Systematic 
 and Alphabetical Indexes.] 1892, 8vo. 11. 10s. 
 
 Vol. XVIII. Catalogue of the Picariae. Scansores, 
 containing the family Picidae. By Edward Hargitt. 
 Pp. xv., 597. Woodcuts and 15 coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1890, 
 8vo. II. 6s. 
 
 Vol. XIX. Catalogue of the Picariae. Scansores and 
 Coccyges : containing the families Rhamphastidae, 
 Galbulidae, and Bucconidae, by P. L. Sclater ; and 
 the families Indicatoridae, Capitonidae, Cuculidae, and 
 Musophagidae, by G. E. Shelley. Pp. xii., 484 : 13 
 coloured Plates. [With Systematic and Alphabetical 
 Indexes.] 1891, Svo. II. 5s. 
 
 Vol. XX. Catalogue of the Psittaci, or Parrots. By 
 T. Salvador!. Pp. xvii., 658. Woodcuts and 18 
 coloured Plates. [With Systematic and Alphabetical 
 Indexes.] 1891, Svo. II. 10s. 
 
 Vol. XXI. Catalogue of the Columbae, or Pigeons. 
 By T. Salvador!. Pp. xvii., 676. 15 coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1893, 
 8vo. II. 10s. 
 
 Vol. XXII. Catalogue of the Game Birds (Pterocleies, 
 Gallince, Opisthocomi, Hemipodii}. By W. R. 
 Ogilvie Grant. Pp. xvi., 585. 8 coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1893, 
 Svo. II. 6s. 
 
 Vol. XXIII. Catalogue of the Fulicariae (Rallidae and 
 Heliornithidae) and Alectorides (Aramidae, Eurypy- 
 gidae, Mesitidae, Rhinochetidae, Gruidse, Psophiidae, 
 and Otididaa). By R. Bowdler Sharpe. Pp. xiii., 353. 
 9 coloured Plates. [With Systematic and Alpha- 
 betical Indexes.] 1894, Svo. 11. 
 
BRITISH MUSEUM (NATURAL HISTORY). 
 
 Catalogue of the Birds in the British Museum continued, 
 
 Vol. XXIV. Catalogue of the Limicolae. By R. 
 Bowdler Sharpe. Pp. xii., 794. Woodcuts and 7 
 coloured Plates. [With Systematic and Alphabetical 
 Indexes.] 1896, 8vo. II. 5s. 
 
 Vol. XXV. Catalogue of the Gaviae and Tubinares 
 Gaviae. (Terns, Gulls, and Skuas), by Howard 
 Saunders. Tubinares (Petrels and Albatrosses), by 
 Osbert Salvin. Pp. xv., 475. Woodcuts and & 
 coloured Plates. [With Systematic and Alphabetical 
 Indexes.] 1896, 8vo. II. Is. 
 
 Vol. XXVI. Catalogue of the Plataleae, Herodiones. 
 Steganopodes, Pygopodes, Alcae, and Impennes r 
 Plataleae (Ibises and Spoonbills) and Herodione& 
 (Herons and Storks), by R. Bowdler Sharpe. Ste- 
 ganopodes (Cormorants, Gannets, Frigate - birds, 
 Tropic-birds, and Pelicans), Pygopodes (Divers and 
 Grebes), Alcae (Auks), and Impennes (Penguins), by 
 W. R. Ogilvie-Grant. Pp. xvii., 687. Woodcuts and 
 14 coloured Plates. [With Systematic and Alpha- 
 betical Indexes.] 1898, 8vo. 11. 5s, 
 
 Vol. XXVII. Catalogue of the Chenomorphse (Pala- 
 medeae, Phoenicopteri. Anseres), Crypturi, and Ratitse. 
 By T. Salvadori. Pp. xv., 636. 19 coloured Plates. 
 [Witi- Systematic and Alphabetical Indexes."! 1895, 
 8vc. II 12s. 
 
 A Hand-list of the Genera and Species of Birds. [Nomen- 
 clator Avium turn Fossilium turn Viventium.] By R 
 Bowdler Sharpe, LL.D. :- 
 
 Vol. V. Pp. xx., 678. [With Systematic and Alpha- 
 betical Indexes.] 1909, 8vo. II. 
 
 General Index to ... Volumes I.-V. Edited bv 
 W. R. Ogilvie-Grant. Pp. v., 199. 1912, 8vo. IDs. 
 
 Edition on large paper, printed on one 
 
 side only. Pp. v., 388. 1912, fol. II. 
 
 List of the Specimens of Birds in the Collection of the 
 British Museum. By George Robert Gray : 
 
 Part III., Sections III. and IV. Capitonidae and Picidae. 
 Pp. 137. [With Index.] 1868, 12mo. Is. 6d. 
 
 Part IV. Columbae. Pp. 73. [With Index.] 1856, 
 12mo. Is. 9dL 
 
 Part V. Gallinae. Pp. iv., 120. [With an Alphabetical 
 Index.] 1867, 12mo. Is. 6d. 
 
 3146 
 
 A2 
 
10 LIST OP PUBLICATIONS OP THE 
 
 Catalogue of the Birds of the Tropical Islands of the Pacific 
 Ocean in the Collection of the British Museum. By 
 George Robert Gray, F.L.S., &c. Pp. 72. [With an 
 Alphabetical Index.] 1859, 8vo. Is. 6d. 
 
 Catalogue of the Collection of Birds' Eggs in the British 
 Museum (Natural History) : 
 
 Vol. I. Ratitse. Carinata? (Tinamiformes Lariformes). 
 By Eugene W. Gates. Pp. xxiii., 252. 18 Coloured 
 Plates. [With Systematic and Alphabetical Indexes.] 
 1901, 8vo. 11. 10s. 
 
 Vol. II. Carinatae (Charadriiformes Strigiformes). By 
 Eugene W. Gates. Pp. xx., 400 15 Coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1902, 
 8vo. II. 10s. 
 
 Vol. III. Carinatae (Psittaciformes Passeriformes). 
 By Eugene W. Gates and Capt. Savile G. Reid. 
 Pp. xxiii., 349. 10 Coloured Plates. [With Syste- 
 matic and Alphabetical Indexes.] 1903, 8vo. 11. 5s. 
 
 Vol. IV. CarinataB (Passeriformes continued). By 
 Eugene W. Gates, assisted by Capt. Savile G. Reid. 
 Pp." xviii., 352. 14 Coloured Plates. [With Syste- 
 matic and Alphabetical Indexes.] 1905, 8vo. 11. 10s. 
 
 Vol. V. Carinatae (Passeriformes completed). By W. 
 R. Ggilvie-Grant. Pp. xxiii., 547. 22 Coloured Plates. 
 [With Systematic and Alphabetical Indexes.] 1912, 
 8vo. 21. 7s. Qd. 
 
 REPTILES. 
 
 Catalogue of the Tortoises, Crocodiles, and Amph isbsenians 
 in the Collection of the British Museum. By Dr. J. E. 
 Gray, F.R.S., &c. Pp. viii., 80. [With an Alphabetical 
 Index.] 1844, 12mo. Is. 
 
 Catalogue of Shield Reptiles in the Collection of the British 
 Museum. By John Edward Gray, F.R.S., &c.: 
 
 Appendix. Pp. 28. 1872, 4to. 2s. 6d. 
 
 Part II. Emydosaurians, Rhynchocephalia, and Amphis - 
 baanians. Pp. vi., 41. 25 Woodcuts. 1872, 4to. 
 3s. 6d. 
 
 Hand-List of the Specimens of Shield Reptiles in the 
 British Museum. By Dr. J. E. Gray, F.R.S., F.L.S., &c. 
 Pp. iv., 124. [With an Alphabetical Index.] 1873, 
 8vo. 4s. 
 
BRITISH MUSEUM (NATURAL HISTORY). 11 
 
 Catalogue of the Lizards in the British Museum (Natural His- 
 tory). Second Edition. By George Albert Boulenger : 
 
 Vol. II. Iguanidae, Xenosauridae, Zonuridae, Anguidae, 
 Anniellidae, Helodermatidae, Varanidae, Xantusiidae, 
 Teiidae, Amphisbaenidae. Pp. xiii., 497. 24 Plates. 
 [With Systematic and Alphabetical Indexes.] 1885, 
 8vo. II. 
 
 Vol. III. Lacertidae, Gerrhosauridae, Scincidae, Anelytro- 
 pidae, Dibamidae, Chamaeleontidae. Pp. xii., 575. 40 
 Plates. [With a Systematic Index and an Alphabetical 
 Index to the three volumes.] 1887, 8vo. I/. 6s. 
 Catalogue of the Snakes in the British Museum (Natural 
 History). By George Albert Boulenger, F.R.S., &c. : 
 Vol. I., containing the families Typhlopidae, Glauconiidae, 
 Boidae, Ilysiidae, Uropeltidae, Xenopeltidae, and Colu- 
 bridae aglyphae (part). Pp. xiii., 448 : 26 Woodcuts 
 and 28 Plates. [With Systematic and Alphabetical 
 Indexes.] 1893, 8vo. II. Is. 
 
 Vol. II., containing the conclusion of the Colubridae 
 aglyphas. Pp. xi., 382 : 25 Woodcuts and 20 Plates. 
 [With Systematic and Alphabetical Indexes.] 1894, 
 8vo. 17s. 6d. 
 
 Vol. III., containing the Colubridae (Opisthoglyphae and 
 Proteroglyphae), Amblycephalidae, and Viperidae. 
 Pp. xiv., 727 : 37 Woodcuts and 25 Plates. [With 
 Systematic Index, and Alphabetical Index to the 3 
 volumes.] 1896, 8vo. II. 6s. 
 
 Catalogue of Colubrine Snakes in the Collection of the 
 British Museum. By Dr. Albert Giinther. Pp. xvi., 281. 
 [With Geographic, Systematic, and Alphabetical Indexes.] 
 1858, 12mo. 4s. 
 
 BATRACHIANS. 
 
 Catalogue of the Batrachia Salientia in the Collection of the 
 British Museum. By Dr. Albert Gunther. Pp. xvi., 160. 
 12 Plates. [With Systematic, Geographic, and Alphabetical 
 Indexes.] 1858, 8vo. 6s. 
 
 FISHES. 
 
 Catalogue of the Fishes in the British Museum. Second 
 Edition. Vol. I. Catalogue of the Perciform Fishes in the 
 British Museum. Vol. I. Containing the Centrarchidas, 
 Percidae, and Serranidae (part). By George Albert 
 Boulenger, F.R.S. Pp. xix., 394. Woodcuts and 15 Plates. 
 [With Systematic and Alphabetical Indexes.] 189f>, 8vo. 
 15s. 
 
12 LIST OP PUBLICATIONS OF THE 
 
 Catalogue of Lophobranchiate Fish in the Collection of the 
 British Museum. By J. J. Kaup, Ph.D., &c. Pp. iv., 80. 
 4 Plates. [With an Alphabetical Index.] 1856, 12mo. 2s. 
 
 Catalogue of the Fresh-water Fishes of Africa in the 
 British Museum (Natural History). By G. A. Boulenger, 
 F.R.S. : 
 
 Vol. I Pp. xi., 373 : 270 text-figures. [With Syste- 
 matic and Alphabetical Indexes.] 1909, imp. 8vo. 
 II. 12s. Qd. 
 
 Vol. II. Pp. xii., 529 j 382 text-figures. [With 
 Systematic and Alphabetical Indexes.] 1911, imp. 
 8vo. 21. 5s. 
 
 MOLLUSCA. 
 
 Guide to the Systematic Distribution of Mollusca in the 
 British Museum. Part I. By John Edward Gray, Ph.D., 
 F.R.S., &c. Pp. xii., 230. 121 Woodcuts. 1857, 8vo. 5s. 
 
 Catalogue of Pulmonata, or Air Breathing Mollusca, in the 
 Collection of the British Museum. Part I. By Dr. Louis 
 Pfeiffer. Pp. iv., 192. Woodcuts. 1855, 12mo. 2s. Qd. 
 
 Catalogue of the Auriculidse. Prosorpinidae, and Truncatellidaa 
 in the Collection of the British Museum. By Dr. Louis 
 Pfeiffer. Pp. iv., 150. Woodcuts. 1857, 12mo. Is. 9d. 
 
 List of the Mollusca in the Collection of the British Museum. 
 By John Edward Gray, Ph.D., F.R.S., &c. : 
 Part II. Olividae. Pp. 41. 1865, 12ino. Is. 
 
 Catalogue of the Conchifera, or Bivalve Shells, in the 
 Collection of the British Museum. By M. Deshayes : 
 
 Part I. Veneridae, Cyprinidse, Glauconomidae, and 
 Petricoladse. Pp. iv., 216. 1853, 12mo. 3s. 
 
 Part II. Petricoladae (concluded) ; Corbiculadse Pp. 
 217-292. [With an Alphabetical Index to the two 
 parts.] 1854, 12mo. 6d. 
 
 BRACHIOPODA. 
 
 Catalogue of Brachiopoda Ancylopoda or Lamp Shells in the 
 Collection of the British Museum. [Issued as " Catalogue 
 of the Mollusca, Part IV."] Pp. iv., 128. 25 Woodcuts. 
 [With an Alphabetical Index.] 1853, 12mo. 3s. 
 
 POLYZOA. 
 
 Catalogue of Marine Polyzoa in the Collection of the British 
 Museum. Part III. Cyclostomata. By George Busk, 
 F.R.S. Pp. viii., 39. 38 plates. [With a Systematic 
 Index.] 1875, 8vo. 5s. 
 
BRITISH MUSEUM ^NATURAL HISTORY). 13 
 
 CRUSTACEA. 
 
 Catalogue of the Specimens of Amphipodous Crustacea in 
 the Collection of the British Museum. By C. Spence Bate, 
 F.R.S., &c. Pp. iv., 399. 58 Plates. [With an Alpha- 
 betical Index.] 1862, 8vo. II. 5s. 
 
 ARACHNIDA. 
 
 Descriptive Catalogue of the Spiders of Burma, based upon 
 the Collection made by Eugene W. Gates and preserved in 
 the British Museum. By T. Thorell. Pp. xxxvi., 406. 
 [With Systematic List and Alphabetical Index.] 1895, 
 8vo. 10s. 6d. 
 
 INSECTS. 
 Coleopterous Insects. 
 
 Nomenclature of Coleopterous Insects in the Collection of 
 the British Museum : 
 
 Part VII. Longicornia, I. By Adam White. Pp. iv., 
 174. 4 Plates. 1853, 12mo. 2s. 6d. 
 
 Part VIII. Longicornia, II. By Adam White. Pp. 237. 
 6 Plates. 1855, 12mo. 3s. 6d. 
 
 Illustrations of Typical Specimens of Coleoptera in the 
 Collection of the British Museum. Part I. Lycidae. By 
 Charles Owen Waterhouse. Pp. x., 83. 18 Coloured 
 Plates. [With Systematic and Alphabetical Indexes.] 
 1879, 8vo. 16s. 
 
 Catalogue of the Coleopterous Insects of Madeira in the 
 Collection of the British Museum. By T. Vernon 
 Wollaston, M.A., F.L.S. Pp. xvi., 234 : 1 Plate. [With 
 a Topographical Catalogue and an Alphabetical Index.] 
 1857, Svo. 3s. 
 
 Catalogue of the Coleopterous Insects of the Canaries in the 
 Collection of the British Museum. By T. Vernon 
 Wollaston, M.A., F.L.S. Pp. xiii., 648. [With Topo- 
 graphical and Alphabetical Indexes.] 1864, 8vo. 10s. Qd. 
 
 Catalogue of Halticidse in the Collection of the British 
 Museum. By the Rev. Hamlet Clark, M.A., F.L.S. 
 Physapodes and (Edipodes. Part I. Pp. xii., 301. 
 Frontispiece and 9 Plates. 1860, 8vo. 7s. 
 
14 LIST OF PUBLICATIONS OF THE 
 
 Catalogue of Hispidae in the Collection of the British 
 Museum. By Joseph S. Baly, M.E.S., &c. Part I. Pp. x., 
 172. 9 Plates. [With an Alphabetical Index.] 1858, 
 8vo. 6s. 
 
 Eymenopterous Insects. 
 
 Catalogue of Hymenopterous Insects in the Collection of the 
 British Museum. By Frederick Smith. 12mo. : 
 
 Part II. Apidae. Pp. 199-465. 6 Plates. [With an 
 Alphabetical Index.] 1854. 6s. 
 
 Part III. Mutillidse and Pompilidse. Pp. 206. 6 Plates. 
 1855. 6s. 
 
 Part IV. Sphegidae, Larridae, and Crabronidae. Pp. 207- 
 497. 6 Plates. [With an Alphabetical Index.] 1856. 
 6s. 
 
 PartV. Vespidse. Pp.147. 6 Plates. [With an Alpha- 
 betical Index.] 1857. 6s. 
 
 Part VII. Dorylidae and Thynnidae. Pp. 76. 3 Plates. 
 [With an Alphabetical Index.] 1859. 2s. 
 
 List of Hymenoptera, with descriptions and figures of the 
 Typical Specimens in the British Museum. Vol. I., 
 Tenthredinidae and Siricidae. By W. F. Kirby. 
 Pp. xxviii., 450. 16 Coloured Plates. [With Systematic 
 and Alphabetical Indexes.] 1882, 8vo. 11. 18s. 
 
 A Revision of the Ichneumonidae, based on the Collection in 
 the British Museum (Natural History). With descriptions 
 of new Genera and Species. By Claude Morley, F.Z.S., 
 F.E.S. : 
 
 Part I. Tribes Ophionides and Metopiides. Pp. xi., 
 88 : 1 Coloured Plate. [With Systematic and Alpha- 
 betical Indexes.] 1912, 8vo. 4s. 
 
 Part II. Tribes Rhyssides, Echthromorphides, Anoma- 
 lides, and Paniscides. Pp. viii., 140. 1 Coloured 
 Plate. [With Systematic and Alphabetical Indexes, 
 &c.] 1913, 8vo. 5s. 6d. 
 
 Part III. Tribes Pimplides and Bassides. Pp. ix., 148, 
 1 Coloured Plate. [With Systematic and Alphabetical 
 Indexes, Catalogue of new Genera and Species, and 
 Classified Summary of the contents of Parts I., II., 
 and III.] 1914, 8vo. 5s. Qd. 
 
 Dipterous Insects. 
 
 A Monograph of the Culicidae, or Mosquitoes. Mainly com- 
 piled from the Collections received at the British Museum 
 from various parts of the world in connection with the 
 Investigation into the cause of Malaria conducted by the 
 
BRITISH MUSEUM (NATURAL HISTORY). 15 
 
 Colonial Office and the Royal Society, By Fred. V. 
 Theobald, M.A., &c. : 
 
 Vol. III. Pp. xvii., 359 : 17 plates, 1 diagram, and 193 
 illustrations in text. 1903, 8vo. 11. Is. 
 
 Vol. IV. Pp. xix., 639 : 16 plates and 297 text-figures. 
 [With Index.] 1907, 8vo. II. 12s. 6d. 
 
 Vol. V. Pp. xv., 646 : 6 plates and 261 text-figures. 
 [With Index.] 1910, 8vo. II. 5s. 
 
 Handbook of the Tsetse-Flies [Genus Glossina]. By Ernest 
 Edward Austen. With 10 coloured plates and 24 text- 
 figures, by A. J. Engel Terzi, and 1 map. Pp. x., 110. 
 [With Index.] 1911, roy. 8vo. 5s. Qd. 
 
 Lepidopterous Insects. 
 
 Catalogue of the Lepidoptera Phalaense in the British 
 Museum. By Sir George F. Hampson, Bart. : 
 
 Vol. I. Catalogue of the Syntomidae. Pp. xxi., 559 : 
 285 woodcuts. [With Systematic and Alphabetical 
 
 Indexes.] 1898, 8vo. 15s. 
 
 Atlas of 17 Coloured Plates, 8vo. 15s. 
 
 Vol. II. Catalogue of the Arctiadae (Nolinae, Litho- 
 sianae). Pp. xx., 589 : 411 woodcuts. [With Syste- 
 matic and Alphabetical Indexes.] 1900, 8vo. 18s. 
 
 Atlas of 18 Coloured Plates (xviii.-xxxv.), 8vo. 15s. 
 
 Vol. III. Catalogue of the Arctiadae (Arctianae) and 
 Agaristidae. Pp. xix., 690 : 294 woodcuts. [With 
 Systematic and Alphabetical Indexes.] 1901, 8vo. 15s. 
 
 Atlas of 19 Coloured Plates (xxxvi.-liv.), 8vo. 16s. 
 
 Vol. IV. Catalogue of the Noctuidae [Agrotinae], Pp. 
 xx., 689 : 125 woodcuts. [With Systematic and 
 Alphabetical Indexes.] 1903, 8vo. 15s. 
 
 Atlas of 23 Coloured Plates (Iv.-lxxvii.), 8vo. 16s. 
 
 Vol. V. Catalogue of the Noctuidae [Hadeninae]. Pp. 
 xvi., 634 : 172 woodcuts. [With Systematic and 
 Alphabetical Indexes.] 1905, 8vo. 15s. 
 
 Atlas of 18 Coloured Plates (Ixxviii.-xcv.), 8vo. 15s. 
 
 Vol. VI. Catalogue of the Noctuidae [Cucullianse]. Pp. 
 xiv., 532 : 172 woodcuts. [With Systematic and 
 Alphabetical Indexes.] 1906, 8vo. 15s. 
 
 Atlas of 12 Coloured Plates (xcvi.-cvii.), 8vo. 10s. 
 
16 LIST OF PUBLICATIONS OP THE 
 
 Catalogue of Lepidoptera Phalaenae continued. 
 
 Vol. VII. Catalogue of the Noctuidae [Acronyctinae]. 
 Pp. xv., 709 : 184 woodcuts. [With Systematic and 
 Alphabetical Indexes.] 1908, 8vo. 17s. 
 
 Atlas of 15 Coloured Plates (cviii.-cxxii.), Svo. 13s. 
 
 Vol. VIII. Catalogue of the Noctuidae [Acronyctinae, II.]. 
 Pp. xiv., 583 : 162 woodcuts. [With Table of the 
 Phylogeny of the Acronyctinae, and Systematic and 
 Alphabetical Indexes.] 1909, Svo. 15s. 
 
 Atlas of 14 Coloured Plates (cxxiii.-cxxxvi.), Svo. 
 
 12s. 
 Vol. IX. Catalogue of the Noctuidae [Acronyctinae, III.] 
 
 Pp. xv., 552 : 247 woodcuts. [With Table of the 
 
 Phylogeny of the Acronyctinae, and Systematic and 
 
 Alphabetical Indexes.] 1910, Svo. 15s. 
 
 Atlas of 11 Coloured Plates (cxxxvii.-cxlvii.), Svo. 
 
 12s. 
 
 Vol. X. Catalogue of the Noctuidae [Erastrianae], 
 Pp. xix., 829 : 214 woodcuts. [With Table of the 
 Phylogeny of the Erastrianae, and Systematic and 
 Alphabetical Indexes.] 1910, Svo. 11. 
 
 Atlas of 26 Coloured Plates (cxlviii.-clxxiii.). 1911, 
 
 Svo. II. 
 
 Vol. XI. Catalogue of the Noctuidae [Sub-families 
 Eutelianae, Stictopterinae, Sarrothripinae, and Acon- 
 tianse.] Pp. xvii., 689 : 275 woodcuts. [With 
 Systematic and Alphabetical Indexes.] 1912, Svo. II. 
 
 Atlas of 16 Coloured Plates (clxxiv.-cxci.), Svo. 
 
 17s. Qd. 
 
 Vol. XII. Catalogue of the Noctuidae [Sub-family 
 Catocalinae, part]. Pp. xiii., 626 : 134 woodcuts. 
 [With Table of the Phylogeny of the Catocalinae, and 
 Systematic and Alphabetical Indexes.] 1913, Svo. 
 17s. Qd. 
 
 -Atlas of 30 Coloured Plates (cxcii-ccxxi.), Svo. 
 
 II. 5s. 
 
 Vol. XIII. Catalogue of the Noctuidae [Sub-families 
 Catocalinae (remainder), Mominae, and Phytometrinae.] 
 Pp. xiv., 609 : 130 woodcuts. [With Systematic and 
 Alphabetical Indexes.] 1913, Svo. 16s. 
 
 Atlas of IS Coloured Plates (ccxxii.-ccxxxix.), Svo. 
 
 16s. 
 
BRITISH MUSEUM (NATURAL HISTORY). 17 
 
 Illustrations of Typical Specimens of Lepidoptera Heterocera 
 in the Collection of the British Museum : 
 
 Part V. By Arthur Gardiner Butler. Pp. xii., 74. 
 78-100 Coloured Plates. [With a Systematic Index.] 
 1881, 4to. 21. 10s. 
 
 Part VI. By Arthur Gardiner Butler. Pp. xv., 89. 
 101-120 Coloured Plates. [With a Systematic Index.] 
 1886, 4to. 21. 4s. 
 
 Part VII. By Arthur Gardiner Butler. Pp. iv., 124. 
 121-138 Coloured Plates. [With a Systematic List,] 
 1889, 4to. 21. 
 
 Part VIII. The Lepidoptera Heterocera of the Nilgiri 
 District. By George Francis Hampson. Pp. iv., 144. 
 139-156 Coloured Plates. [With a Systematic List.] 
 1891, 4to. 21. 
 
 Part IX. The Macrolepidoptera Heterocera of Ceylon. 
 By George Francis Hampson. Pp. v., 182. 157-176 
 Coloured Plates. [With a General Systematic List of 
 Species collected in, or recorded from, Ceylon.] 1893, 
 4to. 21. 2s. 
 
 Catalogue of the Collection of Palaearctic Butterflies formed 
 by the late John Henry Leech, and presented to the 
 Trustees of the British Museum by his Mother, Mrs. Eliza 
 Leech. By Richard South, F.E.S. Pp.vi.,228. 2 Coloured 
 Plates. With a Portrait and Biographical Memoir of Mr. 
 Leech. 1902, 4to. II. 
 
 Catalogue of Diurnal Lepidoptera described by Fabricius in 
 the Collection of the British Museum. By Arthur Gardiner 
 Butler, F.L.S., &c. Pp. iv., 303. 3 Plates. 1869, 8vo. 7s. Qd. 
 
 Neuropterous Insects. 
 
 Catalogue of the Specimens of Neuropterous Insects in the 
 ' Collection of the British Museum. By Dr. H. Hagen. 
 Part 1. Termitina. Pp. 34. 1858, l2mo. &d. 
 
 Orthopterous Insects. 
 
 Catalogue of Orthopterous Insects in the Collection of the 
 British Museum. Part I. Phasmidse. By John Obadiah 
 Westwood, F.L.S., &c. Pp. 195. 48 Plates. [With an 
 Alphabetical Index.] 1859, 4to. 31. 
 
 Catalogue of the Specimens of Blattariae in the Collection of 
 the British Museum. By Francis Walker, F.L.S., &c. 
 Pp. 239. [With an Alphabetical Index.] 1868, 8vo. 
 
18 LIST OF PUBLICATIONS OF THE 
 
 Catalogue of the Specimens of Dermaptera Saltatoria in the- 
 Collection of the British Museum. By Francis Walker, 
 F.L.S., &c. : 
 
 Part II. Locustidae (continued). Pp. 225-423. [With 
 an Alphabetical Index.] 1869, 8vo. 4s. 6d. 
 
 Part V. Tettigidae. Supplement to the Catalogue of 
 Blattariae. Supplement to the Catalogue of Dermaptera 
 Saltatoria (with remarks on the Geographical Distri- 
 bution of Dermaptera). Pp. 811-850; 43; 116. 
 [With Alphabetical Indexes.] 1870, 8vo. 6s. 
 
 Synonymic Catalogue of Orthoptera. By W. F. Kirby : 
 
 Vol. I. Orthoptera Euplexoptera, Cursoria, et Gres- 
 soria. (Forficulidae, Hemimeridae, Blattidae, Mantidae, 
 Phasmidae.) Pp. x., 501. [With Index.] 1904, 
 8vo. 10s. 
 
 Vol. II. Orthoptera Saltatoria, Part I. (Achetidse et 
 Phasgonuridae.) Pp. viii., 562. [With Index.] 1906, 
 8vo. 15s. 
 
 Vol. III. Orthoptera Saltatoria, Part II. (Locustidse 
 vel Acridiidaa.) Pp. vii., 674. [With Index.] 1910. 
 8vo. II. 
 
 Homopterous Insects. 
 
 A Synonymic Catalogue of Homoptera. Part I. Cicadidae. 
 By W. L. Distant. Pp. 207. [Index.] 1906, 8vo. 5s. 
 
 VERMES. 
 
 Catalogue of the Species of Entozoa, or Intestinal Worms, 
 contained in the Collection of the British Museum. By 
 Dr. Baird. Pp. iv., 132. 2 Plates. [With an Index of 
 the Animals in which the Entozoa mentioned in the 
 Catalogue are found, and an Index of Genera and 
 Species.] 1853, 12mo. 2s. 
 
 Catalogue of the Chaetopoda in the British Museum (Natural 
 History). A. Polychaeta : Part I. Areiiicolidge. By J. 
 H. Ashworth, D.Sc. Pp. xii., 175. 15 Plates, 68 Text- 
 figures. [With Systematic and General Indexes, List of 
 Text-figures, Description of Plates, &c.] 1912, roy. 8vo. 
 II. Is. 6d. 
 
 ANTHOZOA. 
 
 Catalogue of Sea-pens or Pennatulariidae in the Collection of 
 the British Museum. By J. E. Gray, F.R.S., &c. Pp. iv., 
 40. 2 Woodcuts. 1870, 8vo. Is. Qd. 
 
BRITISH MUSEUM (NATURAL HISTORY). 19 
 
 Catalogue of Lithophytes or Stony Corals in the Collection 
 of the British Museum. By * J. E. Gray, F.R.S., &c. 
 Pp. iv., 51. 14 Woodcuts. 1870, 8vo. 3s. 
 
 Catalogue of the Madreporarian Corals in the British 
 Museum (Natural History) : 
 
 Vol. I. The Genus Madrepora. By George Brook. 
 Pp. xi., 212. 35 Collotype Plates. [With Systematic 
 and Alphabetical Indexes, and Explanation of the 
 Plates.] 1893, 4to. 11. 4s. 
 
 Vol. II. The Genus Turbinaria ; the Genus Astraeopora. 
 By Henry M. Bernard, M.A. Cantab., F.L.S., F.Z.S. 
 Pp. iv., 106. 30 Collotype and 3 Lithographic Plates. 
 [With Index of Generic and Specific Names, and 
 Explanation of the Plates.] 1896, 4to. 18s. 
 
 Vol. III. The Genus Montipora ; the Genus Anacro- 
 pora. By Henry M. Bernard, M.A., &c. Pp. vii., 192. 
 30 Collotype and 4 Lithographic Plates. [With Syste- 
 matic Index, Index of Generic and Specific Names, 
 and Explanation of the Plates.] 1897, 4to. II. 4s. 
 
 Vol. IV. The Family Poritidae. I. The Genus 
 Goniopora. By Henry M. Bernard, M.A. Pp. viii., 
 206. 12 Collotype and 4 Lithographic Plates. [With 
 Index of Generic and Specific Names, and Explanation 
 of the Plates.] 1903, 4to. II. 
 
 Vol. V. The Family Poritidse. II. The Genus Porites. 
 Part I. Porites of the Indo-Pacific Region. By 
 Henry M. Bernard, M.A. Pp. vi., 303. 35 Plates. 
 [With Index of Generic and Specific Names and 
 Explanation of the Plates.] 1905, 4to. 11. 15s. 
 
 Vol. VI. The Family Poritidse. II. The Genus Porites. 
 Part II. Porites of the Atlantic and West Indies, with 
 the European Fossil Forms. The Genus Goniopora, 
 a supplement to Vol. IV. By Henry M. Bernard, M.A. 
 Pp. vi., 173. 16 Collotype and 1 Lithographic Plates. 
 [With Index of Generic and Specific Names, and 
 Explanation of the Plates.] 1906, 4to. 1L 
 
 BRITISH ANIMALS. 
 
 Catalogue of British Birds in the Collection of the British 
 Museum. By George Robert Gray, F.L.S., F.Z.S., &c. 
 Pp. xii., 248. [With a List of Species.] 1863, 8vo. 3s. Gd. 
 
20 LIST OF PUBLICATIONS OF THE 
 
 Catalogue of the British Species of Pisidium (Recent and 
 Fossil) in the Collections of the British Museum (Natural 
 History), with Notes on those of Western Europe. By 
 B. B. Woodward, F.L.S., &c. Pp. ix., 144. 30 Plates. 
 [With Bibliography and Index.] 1913, 8vo. 10s. $d. 
 
 Catalogue of British Hymenoptera in the Collection of the 
 British Museum. Second edition. Part I. Andrenide 
 and Apidae. By Frederick Smith, M.E.S. New issue 
 Pp. xi. 236. 11 Plates. [With Systematic and Alpha- 
 betical Index.] 1891, 8vo. 6s. 
 
 Catalogue of British Fossorial Hymenoptera, Formicidse, and 
 Vespidae in the Collection of the British Museum. By 
 Frederick Smith, V.P.E.S. Pp. 236. 6 Plates. [With an 
 Alphabetical Index.] 1858, 12mo. 6s. 
 
 Catalogue of British Hymenoptera of the Family Chalcididae. 
 By Claude Morley, F.Z.S., F.E.S. Pp. 74. [Index.] 
 1910, 8vo. 3s. 6d. 
 
 Illustrations of British Blood-sucking Flies, with notes by 
 Ernest Edward Austen, Assistant, Department of Zoology, 
 British Museum (N.H.). Pp. 74. 34 Coloured Plates. 
 1906, roy. 8vo. 11. 5s. 
 
 A Catalogue of the British Non-parasitical Worms in the 
 Collection of the British Museum. By George Johnston, 
 M.D., Edin., F.R.C.L., Ed., LL.D., Marischal Coll., Aber- 
 deen, &c. Pp. 365. Woodcuts and 24 Plates. [With an 
 Alphabetical Index.] 1865, 8vo. 7s. 
 
 Catalogue of the British Echinoderms in the British Museum 
 (Natural History). By F. Jeffrey Bell, M.A. Pp. xvii., 202. 
 Woodcuts and 16 Plates (2 Coloured). [With Table of 
 Contents, Tables of Distribution, Alphabetical Index, 
 Description of the Plates, &c.] 1892, 8vo. 12s. 6d. 
 
 List of the Specimens of British Animals in the Collection 
 of the British Museum ; with Synonyma and References 
 to figures. 12mo. : 
 
 Part V. Lepidoptera. By J. F. Stephens. 2nd Edition. 
 Revised by H. T. Stainton and E. Shepherd. Pp. iv., 
 224. 1856. Is. 9d. 
 
 Part XII. Lepidoptera (continued). By James F. 
 Stephens. Pp. iv., 54. 1852. 9d. 
 
 Part XIII. Nomenclature of Hymenoptera. By 
 Frederick Smith. Pp. iv., 74. 1853. Is. 4d 
 
BRITISH MUSEUM (NATURAL HISTORY). 21 
 
 List of the Specimens of British. Animals in the Collection 
 of the British Museum continued. 
 
 Part XIV. Nomenclature of Neuroptera. By Adam 
 White. Pp. iv., 16. 1853. Qd. 
 
 Part XV. Nomenclature of Diptera, I. By Adam 
 White. Pp. iv., 42. 1853. Is. 
 
 Part XVI. Lepidoptera (completed). By H. T. Stainton. 
 Pp. 199. [With an Index.] 1854. 3s. 
 
 PLANTS. 
 
 Illustrations of Australian Plants collected in 1770 during 
 Captain Cook's Voyage round the World in H.M.S. 
 " Endeavour." By the Right Hon. Sir Joseph Banks, 
 Bart., K.B., P.R.S., and Dr. Daniel Solander, F.R.S. 
 [Being a series of lithographic reproductions of copper- 
 plates engraved after paintings by F. P. Nodder, James 
 Miller, J. F. Miller, and John Cleveley.] With Introduc- 
 tion and Determinations by James Britten, F.L.S., Senior 
 Assistant, Department of Botany, British Museum : 
 
 Part I. 101 Plates, with 31 pages of descriptive text. 
 1900, fol. 11. 5s. 
 
 Part II. 142 Plates (pis. 101-243), with 41 pages of 
 descriptive text (pp. 35-75). 1901, fol. 1Z. 15s. 
 
 Part III. 77 Plates (pis. 244-318, 45A, and 122), with 
 26 pages of descriptive text, including Index to the 
 whole work (pp. 77-102), and 3 maps. 1905, fol. 11. 5s. 
 
 Catalogue of the African Plants collected by Dr. Friedrich 
 Welwitsch in 1853-61 : 
 
 Vol. I. Dicotyledons. By William Philip Hiern, M.A. 
 F.L.S., &c. : 
 
 Part I. [Ranunculaceae to Rhizophoraceae.] Pp.. 
 xxvi., 336. [With Portrait of Dr. Welwitsch. 
 Introduction, Bibliography, and Index of Genera.] 
 1896. 8vo. 7s. Qd. 
 
 Part II. Combretaceae to Rubiaceae. Pp. 337-510. 
 [With Index of Genera.] 1898, 8vo. 4s. 
 
 Part III. Dipsaceae to Scrophulariaceae. Pp. 511- 
 784. [With Index of Genera.] 1898, 8vo. 5s. 
 
 Part IV. Lentibulariaceae to Ceratophylleae. Pp. 785- 
 1035. [With Index.] 1900, 8vo. 5s. 
 
22 LIST OP PUBLICATIONS OF THE 
 
 Catalogue of the African Plants collected by Dr. Friedrich 
 Welwitsch in 1853-61 continued. 
 
 Vol. II. Monocotyledons, Gymnosperms, and Crypto- 
 gams : 
 
 Part I. Monocotyledons and Gymnosperms. By 
 Alfred Barton Rendle, M.A., D.Sc., F.L.S., Assis- 
 tant, Department of Botany. Pp. 260. [With 
 Index of Genera.] 1899, 8vo. 6s. 
 
 Part II. Cryptogamia. Pp. 261-566. [With Table 
 of Errata, and General Index to the whole work.] 
 1901, 8vo. 6s. 
 
 Vascular Cryptogams 
 Mosses 
 Hepatics ... 
 Marine AlgEe 
 Freshwater Algae 
 
 Diatomacege 
 Lichenes 
 
 By William Carruthers, F.R.S. 
 Antony Gepp, M.A., F.L.S. 
 F. Stephani. 
 Ethel S. Barton. 
 W. West, F.L.S., and G. S. 
 
 West, B.A. 
 
 Thomas Comber, F.L.S. 
 E. A. Wainio. 
 
 Fungi -,. Annie Lorrain Smith. 
 
 Mycetozoa ... ,, Arthur Lister, F.R.S. 
 
 Catalogue of the Plants collected by Mr. and Mrs. P. A. 
 Talbot in the Oban District, South Nigeria. By A. B. 
 Rendle, M.A., D.Sc., F.R.S., E. G. Baker, F.L.S., H. F. 
 Wernham, B.Sc., S. Moore, F.L.S., and others. Pp. x., 157 : 
 17 Plates. [With Index and List of Plates.] 1913, 8vo. 9s. 
 
 Flora of Jamaica, containing descriptions of the Flowering 
 Plants known from the Island. By William Fawcett, 
 B.Sc., F.L S., etc., and A. B. Rendle, M.A., D.Sc., F.R.S., 
 F.L.S., etc. Vol. I. OrchidaceaB. Pp. xx., 150 : 32 Plates. 
 [With Index of Genera and Species.] 1910, 8vo. 
 10s. 6d. 
 
 A Monograph of the Genus Sabicea. By Herbert Fuller 
 Wernham, B.Sc., F.L.S. Pp. 82 : 12 Plates, 2 text-figures, 
 1 diagram. [With Index, Explanations of Plates, etc.] 
 1914, 8vo. 6s. 
 
 Synopsis of the British Basidiomycetes : a Descriptive 
 Catalogue of the Drawings and Specimens in the Depart- 
 ment of Botany, British Museum. By Worthington George 
 Smith, F.L.S. Pp. 531. 5 Plates and 145 Figures in 
 Text. [With Index.] 1908, 8vo. 10s. 
 
 A Monograph of the British Lichens : a Descriptive Cata- 
 logue of the Species in the Department of Botany, British 
 Museum. Part II. By Annie Lorrain Smith, F.L.S. 
 Pp. [viii.,] 409 : 59 Plates. [With List of Plates, Glossary, 
 and Index.] 1911, 8vo. 11. 
 
BRITISH MUSEUM (NATURAL HISTORY). 23 
 
 A Monograph of the Mycetozoa : a Descriptive Catalogue 
 of the Species in the Herbarium of the British Museum. 
 By Arthur Lister, F.R.S., F.L.S. Second Edition, 
 revised by Gulielma Lister, F.L.S. Pp. 302. 201 Plates 
 (120 coloured). 56 Woodcuts. [With Indexes, Biblio- 
 graphy, Glossary, etc.] 1911, 8vo. II. 10s. 
 
 List of British DiatomaceaB in the Collection of the British 
 Museum. By the Rev. W. Smith, F.L.S., &c. Pp. \v., 55. 
 1859, 12mo. Is. 
 
 FOSSILS. 
 
 Catalogue of the Fossil Mammalia in the British Museum 
 (Natural History). By Richard Lydekker, B.A., F.G.S.: 
 
 Part I. Containing the Orders Primates, Chiroptera, 
 Insectivora, Carnivora, and Rodentia. Pp. xxx., 268. 
 33 Woodcuts. [With Systematic and Alphabetical 
 Indexes.] 1885, 8vo. 5s. 
 
 Part II. Containing the Order Ungulata, Suborder 
 Artiodactyla. Pp. xxii., 324. 39 Woodcuts. [With 
 Systematic and Alphabetical Indexes.] 1885, 8vo. 6s. 
 
 Part III. Containing the Order Ungulata, Suborders 
 Perissodactyla, Toxodontia, Condylarthra, and Ambly- 
 poda. Pp. xvi., 186. 30 Woodcuts. [With Systematic 
 Index, and Alphabetical Index of Genera and Species, 
 including Synonyms.] 1886, 8vo. 4s. 
 
 Part IV. Containing the Order Ungulata, Suborder 
 Proboscidea. Pp. xxiv., 235. 32 Woodcuts. [With 
 Systematic Index, and Alphabetical Index of Genera 
 and Species, including Synonyms.] 1886, 8vo. 5s. 
 
 Part V. Containing the Group Tillodontia, the Orders 
 Sirenia, Cetacea, Edentata, Marsupialia, Monotremata, 
 and Supplement. Pp. xxxv., 345. 55 Woodcuts. 
 [With Systematic Index, and Alphabetical Index of 
 Genera and Species, including Synonyms.] 1887 , bvo. 6s. 
 
 Catalogue of the Fossil Birds in the British Museum (Natural 
 History). By Richard Lydekker, B.A. Pp. xxvii., 368. 
 75 Woodcuts. [With Systematic Index, and Alphabetical 
 Index of Genera and Species, including Synonyms.] 1891, 
 8vo. 10s. 6d. 
 
 Catalogue of the Fossil Reptilia and Amphibia in the British 
 Museum (Natural History). By Richard Lydekker, B.A., 
 F.G.S. : 
 
 Part I. Containing the Orders Ornithosauria, Crocodilia, 
 Dinosauria, Squamata, Rhynchocephalia, and Pro- 
 terosauria. Pp. xxviii., 309. 69 Woodcuts. [With 
 
24 LIST OF PUBLICATIONS OP THE 
 
 Catalogue of the Fossil Reptilia and Amphibia in the British 
 Museum (Natural History) continued. 
 
 Systematic Index, and Alphabetical Index of Genera 
 and Species, including Synonyms.] 1888, 8vo. 7s. Qd. 
 
 Part II. Containing the Orders Ichthyopterygia and 
 Sauropterygia. Pp. xxi., 307. 85 Woodcuts. [With 
 Systematic Index, and Alphabetical Index of Genera 
 and Species, including Synonyms.] 1889, 8vo. 7s. Qd. 
 
 Part III. Containing the Order Chelonia. Pp. xviii., 
 239. 53 Woodcuts. [With Systematic Index, and 
 Alphabetical Index of Genera and Species including 
 Synonyms.] 1889, 8vo. 7s. Gd. 
 
 Part IV. Containing the Orders Anomodontia, Ecaudata, 
 Caudata, and Labyrinthodontia ; and Supplement. 
 Pp. xxiii., 295. 66 Woodcuts. [With Systematic 
 Index, Alphabetical Index of Genera and Species, 
 including Synonyms, and Alphabetical Index of Genera 
 and Species to the entire work.] 1890, 8vo. 7s. Qd. 
 
 A descriptive Catalogue of the Marine Reptiles of the 
 Oxford Clay. Based on the Leeds Collection in the 
 British Museum (Natural History), London. By C. W. 
 Andrews, D.Sc., F.R.S. : 
 
 Part I. Families Ophthalmosauridae, Elasrnosauridse. 
 Pp. xxiii., 205 : 94 Text-figures, 11 Plates. [With 
 Systematic and Alphabetical Indexes, List of Illus- 
 trations, Explanations of Plates, &c.] 1910, 4to. 11. 5s. 
 
 Part II. Families Pliosauridae, TeleosauridtB, and 
 Geosauridse. Pp. xxiv., 206 : 73 Text-figures, 14 
 Plates. [With Systematic and Alphabetical Indexes, 
 List of Illustrations in Text, Explanations of Plates, 
 &c.] 1913, 4to. II. 5s. 
 
 Catalogue of the Fossil Fishes in the British Museum (Natural 
 History). By Arthur Smith Woodward, LLD., F.R.S., 
 F.G.S., &c. : 
 
 Part I. Containing the Elasmobranchii. Pp. xlvii., 
 474. 13 Woodcuts and 17 Plates. [With Alphabetical 
 Index, and Systematic Index of Genera and Species.] 
 1889, 8vo. 11. Is. 
 
 Part II. Containing the Elasmobranchii (Acanthodii), 
 Holocephali, Ichthyodorulites, Ostracodermi, Dipnoi, 
 and Teleostomi (Crossopterygii and Chondrostean 
 Actinopterygii). Pp. xliv., 567. 58 Woodcuts and 
 16 Plates. [With Alphabetical Index, and Systematic 
 Index of Genera and Species.] 1891, 8vo. 11. Is, 
 
BRITISH MUSEUM (NATURAL HISTORY). 25 
 
 Catalogue of the Fossil Fishes in the British Museum (Natural 
 History) continued. 
 
 Part III. Containing the Actinopterygian Teleostomi 
 of the Orders Chondrostei (concluded), Protospondyli, 
 Aetheospondyli, and Isospondyli (in part). Pp. xlii., 
 544. 45 Woodcuts and 18 Plates. [With Alphabetical 
 Index, and Systematic Index of Genera and Species.] 
 1895, 8vo. II. Is. 
 
 Part IV. Containing the Actinopterygian Teleostomi of 
 the Suborders Isospondyli (in part), Ostariophysi, 
 Apodes, Percesoces, Hemibranchii, Acanthopterygii, 
 and Anacanthini. Pp. xxxix., 636. 22 Woodcuts 
 and 19 Plates. [With Alphabetical Index, and 
 Systematic Index of Genera and Species.] 1901, 
 8vo. I/. Is. 
 
 A descriptive Catalogue of the Tertiary Vertebrata of the 
 Fayum, Egypt. Based on the Collection of the Egyptian 
 Government in the Geological Museum, Cairo, and on the 
 Collection in the British Museum (Natural History), 
 London. By C. W. Andrews, D.Sc. Pp. xxxvii., 324 : 
 98 Text Figures and 26 Plates. [With Systematic and 
 Alphabetical Indexes.] 1906, 4to. IL 15s. 
 
 Systematic List of the Edwards Collection of British Oligocene 
 and Eocene Mollusca in the British Museum (Natural 
 History), with references to the type-specimens from 
 similar horizons contained in other collections belonging 
 to the Geological Department of the Museum. By Richard 
 Bullen Newton, F.G.S. Pp. xxviii., 365. [With table of 
 Families and Genera, Bibliography, Correlation-table, 
 Appendix, and Alphabetical Index.] 1891, 8vo. 6s. 
 
 Catalogue of Tertiary Mollusca in the Department of Geology, 
 British Museum (Natural History). Part I. The Austra- 
 lasian Tertiary Mollusca. By George F. Harris, F.G.S., &c. 
 Pp. xxvi., 407. 8 Plates. [With Table of Families, Genera, 
 and Sub-Genera, and Index.] 1897, 8vo. 10s. 
 
 Catalogue of the Fossil Cephalopoda in the British Museum 
 (Natural History) : 
 
 Parti. Containing part of the Suborder Nautiloidea, con- 
 sisting of the families Orthoceratidae, Endoceratidae, 
 Actinoceratidae, Gomphoceratidae, Ascoceratidae, 
 Poterioceratidae, Cyrtoceratidae, and Supplement. By 
 Arthur H. Foord, F.G.S. Pp. xxxi., 344. 51 Woodcuts. 
 [With Systematic Index, and Alphabetical Index of 
 Genera and Species, including Synonyms.] 1888, 
 8vo. 10s. Gd. 
 
26 LIST OP PUBLICATIONS OP THE 
 
 Catalogue of the Fossil Cephalopoda in the British Museum 
 (Natural History) continued. 
 
 Part II. Containing the remainder of the Suborder 
 Nautiloidea, consisting of the families Lituitidae, 
 Trochoceratidse, Nautilidse, and Supplement. By 
 Arthur H. Foord, F.G.S. Pp. xxviii., 407. 86 Wood- 
 cuts. [With Systematic Index, and Alphabetical 
 Index of Genera and Species, including Synonyms.] 
 1891, 8vo. 15s. 
 
 Part III. Containing the Bactritidse, and part of the 
 Suborder Ammonoidea. By Arthur H. Foord, Ph.D., 
 F.G.S., and George Charles Crick, A.R.S.M., F.G.S. 
 Pp. xxxiii., 303. 146 Woodcuts. [With Systematic 
 Index of Genera and Species, and Alphabetical Index.] 
 1897, 8vo. 12s. Qd. 
 
 List of theTypes and Figured Specimens of Fossil Cephalopoda 
 in the British Museum (Natural History). By G. C. Crick, 
 F.G.S. Pp. 103. [With Index.] 1898, 8vo. 2s. Qd. 
 
 A Catalogue of British Fossil Crustacea, with their Synonyms 
 and the Range in Time of each Genus and Order. By 
 Henry Woodward, F.R.S. Pp. xii., 155. [With an 
 Alphabetical Index.] 1877, 8vo. 5s. 
 
 Catalogue of the Fossil Bryozoa in the Department of 
 Geology, British Museum (Natural History): 
 
 The Jurassic Bryozoa. By J. W. Gregory, D.Sc., F.G.S., 
 F.Z.S. Pp. [viii.,] 239 : 22 Woodcuts and 11 Plates. 
 [With List of Species and Distribution, Bibliography, 
 Index, and Explanation of Plates.] 1896, 8vo. 10s. 
 
 The Cretaceous Bryozoa. By J. W. Gregory, D.Sc.^ 
 F.R.S., &c. : 
 
 Vol. I. Pp. xiv., 457 : 64 Woodcuts and 17 Plates. 
 [With Index and Explanation of Plates.] 1899, 
 8vo. 16s. 
 
 Vol. II. Pp. xlviii., 346. 75 Woodcuts and 9 Plates. 
 [With List of Localities, Bibliography, Subject 
 and Systematic Indexes, and Explanation of 
 Plates.] 1909, 8vo. 13s. 
 
 Catalogue of the Blastoidea in the Geological Department of 
 the British Museum (Natural History), with an account of 
 the morphology and systematic position of the group, and 
 a revision of the genera and species. By Robert Etheridge, 
 jun., of the Department of Geology, British Museum 
 (Natural History), and P. Herbert Carpenter, D.Sc., F.R.S., 
 
BRITISH MUSEUM (NATURAL HISTORY). 27 
 
 F.L.S. (of Eton College). Pp. xv., 322. 20 Plates. [With 
 Preface by Dr. H. Woodward, Table of Contents, General 
 Index, Explanations of the Plates, &c.] 1886, 4to. II. 5s. 
 
 The Genera and Species of Blastoidea, with a List of the 
 Specimens in the British Museum (Natural History). By 
 F. A. Bather, M.A., F.G.S., of the Geological Department. 
 Pp. x., 70. 1 Woodcut. 1899, 8vo. 3s. 
 
 Catalogue of the Palaeozoic Plants in the Department of 
 Geology and Palaeontology, British Museum (Natural 
 History). By Robert Kidston, F.G.S. Pp. viii., 288. 
 [With a list of works quoted, and an Index.] 1886, 
 8vo. 5s. 
 
 Catalogue of the Mesozoic Plants in the Department of 
 Geology, British Museum (Natural History) : 
 
 Part I. The Wealden Flora. Part I. Thallophyta 
 Pteridophyta. By A. C. Seward, M.A., F.R.S., F.G.S., 
 &c. Pp. xxxviii., 179. 17 Woodcuts and 11 Plates. 
 [With Alphabetical Index, Explanations of the 
 Plates, &c.] 1894, 8vo. 10s. 
 
 Part II. The Wealden Flora. Part II. Gymnospermae. 
 By A. C. Seward, M.A., F.R.S., F.G.S., &c, Pp. viii., 
 259. 9 Woodcuts and 20 Plates. [With Alphabetical 
 Index, Explanations of the Plates, &c.] 1895, 8vo. 15s. 
 
 Part III. The Jurassic Flora. Part I. The Yorkshire 
 Coast. By A. C. Seward, M.A., F.R.S., F.G.S., &c. 
 Pp. xii., 341. 53 Woodcuts and 21 Plates. [With 
 Alphabetical Index, Explanations of the Plates, &c.] 
 1900, 8vo. II. 
 
 Part IV. The Jurassic Flora. II. Liassic and 
 Oolitic Floras of England (excluding the Inferior 
 Oolite Plants of the Yorkshire Coast). By A. C. 
 'Seward, M.A., F.R.S., F.G.S., &c. Pp. xv., 192. 
 20 Woodcuts and 13 Plates. [With Alphabetical 
 Index, Explanations of the Plates, &c.] 1904, 8vo. 10s. 
 
 Part V. The Cretaceous Flora. Part. I. Bibliography, 
 Algae, and Fungi. By Marie C. Stopes, D.Sc. (Loiid.), 
 Ph.D (Munich), F.L.S., &c. Pp. xxiii., 285. 25 Text- 
 figures and 2 Plates. [With Alphabetical Index, 
 Explanations of the Plates, and Stratigraphical Table.] 
 1913, 8vo. 12s. 
 
 Catalogue of the Fossil Plants of the Glossopteris Flora in 
 the Department of Geology, British Museum (Natural 
 History). Being a Monograph of the Permo-carboniferous 
 Flora of India and the Southern Hemisphere. By E. A. 
 Newell Arber, M.A., F.L.S., F.G.S. Pp. Ixxiv., 255 : 51 
 Text- Figures and 8 Plates. [With Bibliography and 
 Alphabetical Index.] 1905, 8vo. 12s. 6d. 
 
[ 
 P 
 
 28 LIST OF PUBLICATIONS OF THE 
 
 GUIDE-BOOKS, ETC. 
 
 General Guide to the British Museum (Natural History), 
 Cromwell Road, London, S.W. Thirteenth Edition. With 
 58 text-figures, 2 plans, 2 views of the building, and an 
 illustrated cover. Pp, x., 121. 1913, 8vo. 3d. 
 
 Guide to the Specimens illustrating the Races of Mankind 
 (Anthropology), exhibited in the Department of Zoology, 
 British Museum (Natural History). Second Edition. 
 By R. Lydekker, F.R.S.] Illustrated by 16 Figures. 
 p. 35. 1912, 8vo. 4d. 
 
 Guide to the Galleries of Mammals in the Department of 
 Zoology of the British Museum (Natural History). Ninth 
 Edition. Pp. 123. 65 Woodcuts, 1 Plate, and 3 plans. 
 Index. 1914, 8vo. 9d. 
 
 Guide to the Specimens of Great Game Animals (Ungulata) 
 exhibited in the Department of Zoology, British Museum 
 (Natural History). Second Edition. [By R. Lydekker, 
 F.R.S.] Pp. 95. 53 Text and other figures. With list 
 of Horns, Antlers and Tusks, and Index. 1913, 8vo. Is. 
 
 Guide to the Elephants (Recent and Fossil) exhibited in 
 the Department of Geology and Palaeontology in the British 
 Museum (Natural History). [By Dr. C. W. Andrews, 
 F.R.S.] Illustrated by 31 text-figures. Pp. 46. 1908, 
 8vo. Qd. 
 
 Guide to the Specimens of the Horse Family (Equidae) 
 exhibited in the Department of Zoology, British Museum 
 (Natural History). [By R. Lydekker, F.R.S.] Pp. 42. 
 26 Figures. 1907, 8vo. Is. 
 
 Guide to the Domesticated Animals (other than Horses) 
 exhibited in the Central and North Halls of the British 
 Museum (Natural History). Second Edition. [By R. 
 Lydekker, F.R.S.] Illustrated by 25 Figures. Pp. 56. 
 [With table of Contents, List of Illustrations, and Index.] 
 1912, 8vo. Qd. 
 
 Guide to the Whales, Porpoises, and Dolphins (order Cetacea) 
 exhibited in the Department of Zoology, British Museum 
 (Natural History). [By R. Lydekker, F.R.S.] Illustrated 
 by 33 Figures. Pp. 47. [With Index.] 19U9, 8vo. 4d. 
 
 Guide to the Gallery of Birds in the Department of 
 Zoology, British Museum (Natural History). [By W. R. 
 Ogilvie Grant.] Second Edition. Pp. iv., 228. 25 Plates, 
 and 7 Illustrations in text. [With Index.] 1910, 4to. 
 2s. 6rf. 
 
BRITISH MUSEUM (NATURAL HISTORY). 29 
 
 Guide to the Gallery of Birds in the Department of Zoology, 
 British Museum (Natural History). [By W. R. Ogilvie 
 Grant.] : 
 
 Part I. General Series. Pp. 149. [With Index.] 
 
 1905. 4to. Gd. 
 Part II. Nesting Series of British Birds. Second 
 
 Edition. Pp. 62. 4 Plates. [Index.] 1909, 4to. 4d. 
 
 Guide to the Gallery of Reptilia and Amphibia in the 
 Department of Zoology of the British Museum (Natural 
 History). [By R. Lydekker, F.R.S.] Illustrated by 
 76 text and other Figures. Second Edition. Pp. iv., 85. 
 [With Table of Contents and Index.] 1913, 8vo. Is. 
 
 Guide to the Gallery of Fishes in the Department of Zoology 
 of the British Museum (Natural History). [By Dr. W. G. 
 Ridewood.] Illustrated by 96 Figures. Pp. v., 209. 
 [With Preface by Sir E. Ray Lankester, Table of 
 Classification, and Index.] 1908, 8vo. Is. 
 
 Guide to the British Vertebrates Exhibited in the Depart- 
 ment of Zoology, British Museum (Natural History). 
 [By W. P. Pycraft] Pp. iv., 122. 26 Text-figures, 
 1 Plan. [With Index.] 1910, 8vo. Is. 
 
 Guide to the exhibited series of Insects in the Department 
 of Zoology, British Museum (Natural History). By C. 0. 
 Waterhouse. Second Edition. Pp. 65 : 62 text- and full- 
 page Illustrations. [With Table of Contents and Index.] 
 1909, 8vo. Is. 
 
 Guide to the Crustacea, Arachnida, Onychophora and My- 
 riopoda exhibited in the Department of Zoology, British 
 Museum (Natural History). (By W. T. Caiman, D.Sc., 
 A. S. Hirst, and F. J. Bell.) Pp. 133 : 90 Text-figures. 
 [With Table of Contents and Index.] 1910, 8vo. Is. 
 
 Guide to the Shell and Starfish Galleries (Mollusca, Polyzoa, 
 Brachiopoda, Tunicata, Echinoderma, and Worms), 
 Department of Zoology, British Museum (Natural History). 
 Fifth Edition. Pp. iv., 133. 125 Woodcuts, Plan, and 
 Indexes. 1908, 8vo. 6d. 
 
 Guide to the Coral Gallery (Protozoa, Porifera or Sponges, 
 Hydrozoa, and Anthozoa) in the Department of Zoology, 
 British Museum (Natural History). Second Edition. 
 Pp. [iv., 8] 73. 90 Illustrations, Plan, and Index. 
 1907, 8vo: Is. 
 
 A Guide to the Fossil Mammals and Birds in the Department 
 of Geology and Palaeontology in the British Museum 
 (Natural History). Ninth Edition. [By A. S. Woodward, 
 LL.D., F.R.S.] Pp. xvi., 100. 6 Plates, 88 Text-figures. 
 [With List of Illustrations, Table of Stratified Rocks, and 
 Index.] 1909, 8vo. 6d. 
 
30 LIST OF PUBLICATIONS OP THE 
 
 A Guide to the Fossil Reptiles, Amphibians, and Fishes in 
 the Department of Geology and Palaeontology in the 
 British Museum (Natural History). Ninth Edition. [By 
 A. S. Woodward, LL.D., F.R.S.] Pp. xviii., 110. 8 Plates 
 and 116 Text-figures. [With Table of Contents, Lists of 
 Illustrations, Geological Time-Scale, and Index.] 1910, 
 8vo. 9d. 
 
 A Guide to the Fossil Invertebrate Animals in the Depart- 
 ment of Geology and Palaeontology in the British Museum 
 (Natural History). [By F. A. Bather, D.Sc., F.R.S.] 
 Second Edition. Pp. x., 183. 7 Plates and 96 Text-Figures. 
 [With List of Illustrations, Geological Time-scale, and 
 Index.] 1911, 8vo. Is. 
 
 A Guide to the Mineral Gallery of the British Museum 
 (Natural History). Twelfth Edition. Pp. 32. Plan. 
 1914, 8vo. Id. 
 
 The Student's Index to the Collection of Minerals, British 
 Museum (Natural History). Twenty - fifth Edition. 
 Pp. 35. [With a Plan of the Mineral Gallery.] 1914, 
 8vo. 2d. 
 
 An Introduction to the Study of Minerals, with a Guide to 
 the Mineral Gallery of the British Museum (Natural 
 History). By L. Fletcher, M. A., F.R.S. Fourteenth Edition. 
 Pp. 123. 41 Woodcuts. [With Flan of the Mineral 
 Gallery and Index.] 1914, 8vo. Qd. 
 
 An Introduction to the Study of Rocks and Guide to the 
 Museum Collection. Fourth Edition. By L. Fletcher, 
 M. A., F.R.S. Pp. 155. [With Plan of the Mineral Gallery, 
 Table of Contents, and Index.] 1909, 8vo. Is. 
 
 An Introduction to the Study of Meteorites, with a List of the 
 Meteorites represented in the Collection. By L. Fletcher, 
 M.A., F.R.S., &c. Tenth Edition. Pp. 120. [With a Plan 
 of the Mineral Gallery, and an Index to the Meteorites 
 represented in the Collection.] 1908, 8vo. Qd. 
 
 List of British Seed-plants and Ferns exhibited in the 
 Department of Botany, British Museum (Natural History). 
 [By A. B. Rendle, D.Sc., F.R.S., and J. Britten, F.L.S.] 
 With table of Sequence of Orders, and Index of Genera. 
 Pp. 44. 1907, 8vo. 4d. 
 
 Guide to Sowerby's Models of British Fungi in the De- 
 partment of Botany, British Museum (Natural History). 
 Second Edition, revised. By Worthington G. Smith, F.L.S. 
 Pp. 85. 91 Woodcuts. [With Table of Diagnostic 
 Characters, Glossary, and Index.] 1908, Svo. 4d. 
 
BRITISH MUSEUM (NATURAL HISTORY). 31 
 
 *Guide to Mr. Worthington Smith's Drawings of Field and 
 Cultivated Mushrooms, and Poisonous or Worthless 
 Fungi, often mistaken for Mushrooms, exhibited in the 
 Department of Botany. British Museum (Natural 
 History). Pp. 24 : 2 Plates, containing 28 coloured 
 figures ; 4 text-figures. 1910, 8vo. Is. 
 
 Guide to the British Mycetozoa exhibited in the Department 
 of Botany, British Museum (Natural History). [By Arthur 
 Lister, F.R.S.] Third Edition, revised. Pp. 49. 46 
 Woodcuts. Index. 1909, 8vo. 3d. 
 
 SPECIAL GUIDES. 
 
 No. 2. Books and Portraits illustrating the History of Plant 
 Classification exhibited in the Department of Botany. 
 Second Edition. [By A. B. Kendle, M.A., D.Sc., F.R.S.] 
 Pp. 19. 4 Plates. 1909, 8vo. 4d. 
 
 No. 4. Memorials of Charles Darwin : a Collection of 
 Manuscripts, Portraits, Medals, Books, and Natural History 
 Specimens to commemorate the Centenary of his Birth 
 and the Fiftieth Anniversary of the Publication of " The 
 Origin of Species." (Second Edition.) [By W. G. Ride- 
 wood, D.Sc.] Pp. vi., 50. 2 Plates. 1910, 8vo. 6d. 
 
 No. 5. Guide to the Exhibition of Animals, Plants, and 
 Minerals mentioned in the Bible. Third Edition. 
 Pp. vii., 78. 7 Text-figures. [With Index. | 1913, 8vo. 6d. 
 
 No. 6. Guide to the Exhibition of Specimens illustrating 
 the modification of the Structure of Animals in relation to 
 Flight. Pp. viii., 80. 1 Plate, 44 Text- figures. [With List 
 of Illustrations and Index.] 1913, 8vo. 6d. 
 
 INSTRUCTIONS FOR COLLECTORS. 
 
 Handbook of Instructions for Collectors, issued by the 
 British Museum (Natural History). With Illustrations. 
 Third Edition. Pp. 144. Index. 1906, 8vo. Is. Qd. 
 
 Instructions for Collectors : 
 
 No. 1. Mammals. Fourth Edition. Pp. 8. Text illust. 
 
 1912, 8vo. 3d. 
 
 No. 2. Birds and their Eggs. Fifth Edition. Pp. 13. 
 6 Text-figures. 1912, 8vo. 3d. 
 
 * The plates may be had separately in one sheet mounted on linen and 
 varnished. Price Is., or Is. Id. post free. 
 
3# BRITISH MUSEUM (NATURAL HISTORY). 
 
 Instructions for Collectors continued. 
 
 No. 3. Reptiles, Batrachians, and Fishes. [Third 
 Edition.] Pp. 12. 1903, 8vo. 4d. 
 
 No. 4. Insects. Fifth Edition. Pp. 11. Text illust. 
 
 1911, 8vo. 3d. 
 N^ 5. Diptera (Two-winged Flies). Third Edition. 
 
 Pp. 16. Text illust. 1908, 8vo. 3d. 
 
 No. 6. Mosquitoes (Culicidse). [Third Edition.] Pp. 8. 
 1 Plate, 1 figure in text. 1904, 8vo. 3d. 
 
 No. 7. Blood-sucking Flies, Ticks, &c. By E. E. Austen. 
 Fourth Edition. Pp.24: 13 figures in text. 1914, 8 vo. 3d. 
 
 No. 8. Spiders, Centipedes, Peripatus, &c. Third Edition. 
 Pp. 4 : 3 text-figures. 1914, 8vo. 3d. 
 
 No. 9. Soft-bodied and other Invertebrate Animals ; Shells 
 of Molluscs. Third Edition. Pp. 18. 1909, 8vo. 3d. 
 
 No. 10. Plants. Fourth Edition. Pp. 10 : 3 figures in text. 
 
 1909, 8vo 3d. 
 No. 11. Fossils and Minerals. Fourth Edition. Pp. 8. 
 
 1913, 8vo. 3d. 
 
 ECONOMIC SERIES. 
 
 No. 1. The House-Fly as a Danger to Health. Its Life- 
 history, and how to deal with it. By Ernest E. Austen. 
 Second Edition. Pp. 12 : 2 plates (containing 4 figures), 
 and 3 figures in text. 1913, 8vo. Id. 
 
 The Guide-books, etc. (pp. 28-32) are sold at the NATURAL 
 HISTORY MUSEUM, and by the following Agents : 
 
 LONDON : BERNARD QUARITCH, 11, Grafton Street, W. 
 
 DULAU AND Co., Ltd., 37, Soho Square, W. 
 BIRMINGHAM : MIDLAND EDUCATIONAL Co., Ltd., 41 
 
 and 43, Corporation Street. 
 
 MANCHESTER : SHERRATT AND HUGHES, 34, Cross Street. 
 GLASGOW : GRANT EDUCATIONAL Co., Ltd., 91 and 93, 
 Union Street. 
 
 British Museum (Natural History), 
 Cromwell Road, 
 
 London, S.W. 
 November, 1914. 
 

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