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 MONOORAPH 
 
 OF THE 
 
 / 
 
 MUTILLIDAE 
 
 
 OF 
 
 NORTH AMERICA 
 
 BY 
 
 CHARLES A. BLAKE. 
 
 PHILADELPHIA . 
 
 Paul C. Stockhausen, Entomological Printer, 
 
 No. 55 N«* Seventh Street. 
 
 1886. 
 
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NOKTH AMKKICAN HYMENOPTKRA. 175* 
 
 Mouograph Of the MUTILLID^C of North America. 
 
 
 BY CHAKLEH A. BLAKE. 
 
 TIk' airuiiiulation of nuich new material, in this interestinji' family, 
 from all part.-* of the country has siigjre.sted a revi.sion of tlic "Sy- 
 nopsis" published in the " Tran.sactions" in 1871, which, althoiiifh 
 tolerably complete at that time, the subsecjuent di.scovt'ry of new 
 -pecies and al.-io of a new genus, together with changes in nomen- 
 clature, have rendered a review of the work both nece.<sary and de- 
 si ral)le. 
 
 P\dl descriptions of all the species known to me are given, and of 
 those that have not been identified descriptions are added, in most 
 ca.<es in the author's own words, thus aesisting the student to identify 
 his material without the necessity of consulting scientific works, 
 which are often published in foreign languages, and generally diffi- 
 cult <»f access. 
 
 The Mutillida?, unlike ' e Formicidfe, or social ants, are solitary 
 in their habits, and usuall\ ound in hot sandy situations. The spe- 
 cies of the genus Mutilla ai now well known to be parasitic, espe- 
 cially on various species of BombuH, and it is presumable that those 
 of the other genera of the family are likewise of the same habit. 
 
 The characters of Sphwrophthahna, which was treated as a subgenus 
 in the " Synojxsis," appear to be sufficiently constant and distinct to 
 warrant its elevation into a genus ; the smooth, round eyes sej)arating 
 it at once from Mutil/a, which have the body less coarsely scul})tured 
 and not so densely hii-sute. 
 
 The selection of the name Agama used for a genus erected for the 
 reception of those species characterized by the i.ore or less shining 
 unicolorous body, unusually large eyes and ocelli, and hyaline wings 
 was unfortunate, a.s it was preoccupied in the Reptilia, a fact over- 
 looked at the time. The name Photopsis is therefore suiistituted. 
 Of this genus the males only are known, and it is possible tiiat tlic 
 females, which have thus far escaped the observations of collectors, 
 are larviform and subterraneous in their habits. 
 
 Chi/photej* is the name I propose for a new genus, characterized 
 by the binodose thorax and petiolate abdomen, the fii-st segment of 
 which is very slender at base and suddenly dilated and nodose at 
 aj)ex ; the eyes are smooth and round, as in Splmrojihihnhnit , while 
 the absence of ocelli ^ parated it from Myrmom 
 
ISO 
 
 CIIAKLEH A. RLAKK. 
 
 I 
 
 The genus Apterogtjna, which does not appear to have been found 
 in North America, is remarkable for the two anterior segments of 
 the abdomen being constricted and ^lodose, and for the great length 
 of the antennae in the male, being ne irly as long as the body, and 
 for the curious neuration of the wings. 
 
 The genus Bradynobiemts, also exotic, is characterized by the large 
 iiuadrate head, having the anterior and posterior angles acute, and 
 the thorax of the female being divided in two parts ; the femora and 
 tibiae are more robust than in the other genera of the family. 
 
 In Myrmom the head is subglobose, eyes small and round ; the 
 thorax ovate and the anterior wings have one marginal and four 
 submarginal cells. The females of our species appear to be unknown. 
 
 In the genus Methoca the ocelli are said to be distinct in both sexes, 
 head saliglobose in the female, transverse in the male, eyes ovate, 
 thorax trinodose in the female and oblong in the male. 
 
 Nothing definite appears to be known of their habits, although 
 they are supposed to be parasitic. Owing to the dissimilarity of the 
 two sexes Latreille considered the male belonging to a distinct genus, 
 Tengyra, which was arranged among the Scoliidae. 
 
 I have divided the family into nine genera, in all of which the 
 females are apterous, and may be tabulated as follows : 
 
 Anteniiffi of male flabellate 1, I'liaininotherina. 
 
 Anteniiffi simple in both sexes. 
 
 Eyes ovate, emarginate in the maie, entire in *he female 2, Mutilla. /'' 
 
 Eyes ruuud, polished in both sexes '.i, KphferoplitlialinH. ,J-- 
 
 Eyes large, round; ocelli large; antennse long and slender; wings hyaline, ' 
 
 body unicolorous, shining 4, PhotopHis. «!«* 
 
 Eyes round and polished ; thorax binodose ; abdomen petiolate, petiole slender 
 
 andcylindricalatba.se 5, Cliyphotes. ' 
 
 First and second abdominal segments nodose, anterior wings with two sub- 
 marginal cells, marginal cell wanting ''''(), Apterogyiia. 
 
 Mandibles elongate, arcuate, the maxillary palpi 3-jointed, labial palpi 
 
 2-jointe('. ; thorax divided in two parts •■7, Bradyiiobeenus. 
 
 Eyes small, round ; head subglobose, mandibles tridentate in the male, uniden- 
 tate in the female ; wings with ;tne marginal and four .submarginal 
 cells; margins of the abdominal .segments crenate, tridentate at apex. 
 
 K, Myrinosa. 
 Eyes ovate, ocelli placed high on the vertex ; antennte filiform, mandibles ar- 
 cuate iu the female ; head subglobose ; scape of male anteume very 
 short ; wings with one elongate marginal cell which extends nearly to 
 the tip of the wing; three submarginal cells 9, Methoca. .' 
 
 * These are exotic. 
 
NORTH AMKRICAN IIYMKNOPTEHA. 
 
 1>^1 
 
 sen found 
 merits of 
 at length 
 >ody, and 
 
 the large 
 cute, and 
 mora and 
 
 und ; the 
 and four 
 inknown. 
 oth sexes, 
 'es ovate, 
 
 although 
 ity of the 
 net genus, 
 
 vhich the 
 
 therina. 
 
 Miitilla. /' 
 tlialinu 
 
 hyaline, 
 lotopsis. 
 
 iolc slender 
 ^'pliotes. 
 
 :h two sub- 
 rogyiiM. 
 
 abial palpi 
 obiennii. 
 
 Ic, uniden- 
 nhmarginal 
 ite at ajjcx. 
 yrinosa. 
 ndibles ar- 
 eunte very 
 8 nearly to 
 lethoca. 
 
 
 The species of this family, so far known to me, nuiy Ik> talmlatt'd 
 as follows : 
 
 Genus 1, PSAMinOTHERMA I>atr. 
 Aiitennro flabellate %, ajax. 
 
 GenuH 2, NUTILLA Linn. 
 
 MALES. /-'/'. 
 
 .\ntenn{e simple. ' / 
 
 Eyes ovate, more or less acutely eniarjiinate within. 
 .\bd()nion more or less fulvous or ferrujfiuons. 
 Head and tlKirax blaek, with jtubescence entirely black. 
 
 Abdominal segments fringed at apex with ferruginous pubescence, fi^^t 
 
 segment black hexHgona. 
 
 Abdominal segments fringed at a])ex with golden pubescence, rirst seg- 
 ment black Grotei. 
 
 Head, thorax and base, and apex of abdomen black ; alxlomen clothed with 
 
 bright scarlet pubescence teriuinata. 
 
 Abdominal segments fringed at api'x with golden ])ubescence..oaJaca. 
 Head, thorax and basal segment of abdomen black, the remaining segments 
 ferruginous, apical margins fringed with ferruginous pubescence. 
 
 ordinaria. 
 Abdominal segment.s fringed at apex with silverj- white pubescence. 
 
 copano. 
 Head black; pro- and me.sothora.x and aMomen ferruginous; segments 
 
 fringed at apex with black j)ubescence May!. 
 
 Head black ; thorax and abdomen ferruginous, fringed with ferruginous 
 
 pubescence floridensll^ 
 
 Head and thorax black above; abdomen rufo-ca.staneous ; segments fringed 
 
 with fuscous exlmia. 
 
 Head and thorax above reddish brown; abdomen ferruginous; segments 
 
 fringed at ajiex with black pubescence promethea. 
 
 Abdomen rufous, with long rufous pubescence rnflt. 
 
 Head and thorax black; abdomen ferruginous, fringed with black pubes- 
 cence contracta. 
 
 Head ochraceous, thorax black, me.sothorax brown ; abdomen ferruginous ; 
 
 segments fringed at apex with whitish pul)escence senex. 
 
 Black ; head thinly covered with white pubescence, apical margins of 
 abdominal segments sparsely fringed with white pubescence ; wings 
 
 fuscous nana. 
 
 Abdomen black, banded with silvery pubescence. 
 Head with short gray pubescence ; second .segment of abdomen subopaque, 
 with large, coarse punctures ; first and .second segments with an 
 apiciil band of silvery pubescence, remaining segments with mixed. 
 
 black and silvery pubescence scrupea. 
 
 Hea<l with long, dense, silvery jmbescence ; pleura and metathorax also 
 silvery ; second segment of abdomen shining, with le,ss coarse punc- 
 tures ; first segment entirely and broad apical margin of second seg- 
 ment silvery, the whole abdomen with long, silvery pubescence, 
 
 gracilis. 
 
1S2 
 
 < HARLKx A. HLAKJ;. 
 
 Hlack ; liciul witli wliitf ]>iilH'«f»'iicc ; iiit'tathorax, liasiil ,s('>.'iii('iit <>f 
 alnliiim'ii and svrdiiil, with silvery white jmhescfiici' ; wiiini^ iiviiliiic, 
 (liiudfd at apical iiiurKiii!^ MttpieilS. 
 
 FEMALES, //^v/ 
 Ei/m itviilr. 
 First alxloiniiial si-ginent small, iiodiforiu, more or less constricted at apex. 
 Head ochraceous; Ixwly ferruginous ; alxlduieii aliove with two larjie t)lack 
 
 s]iots, apex ochnic-eous Clllt(*IINiN. 
 
 llisid t'erruniuous, vertex golden, occiput hlack; altdoinen without l)lack 
 
 spots, apex oeliniceouH diiaCott. 
 
 Head t'uscous. vertex slifrhtly jcoldeu ; ahdoiuen t'erruKinous, apex oC second 
 scfiiuent with cinereous lianu ; hody with erect tilack hairs; size 
 
 minute yiicatana. 
 
 F'irst a))doniina1 sej;ment k™<1"''i".v dilated to apex and sessile with hase (d' 
 second segment. 
 Head black; thorax ferruginous: ah<Iomen hlack, ornamented with pale 
 
 golden hands and .stripes oajaca. 
 
 Head ferruginous. 
 
 Size medium; legs hlack ornativeiitriN. 
 
 Head hlack, with erect hairs; vertex with depres.sed golden puhcscence; 
 thorax ferruginous, with long, sparse, erect, hlack hair!-; ahdomer. 
 hlack, second seguuMit with three spots of silvery puhescence, the 
 
 posterior jiair large and transverse floridaiia. 
 
 Head ucliniceous and hlack ; thorax brown, elongate, with a tubercle on each 
 side l)eyond middle; two ochraceous spots on thorax above; abdo- 
 men Id!'.. A spotted with (jchraceous, .second segment having two 
 spots i! nd a broad ochraceous hand at apex, interrujited me- 
 dially tolteca. 
 
 Small ; he: , aiid mesothorax above and thn* spots on second abdominal 
 segment, jwsterior jiiiir large and a spot at tip of abdomen silvery 
 
 white trlNiKnata. 
 
 Size small ; legs ferruginous l<>ona. 
 
 Head ochraceous pallivepN. 
 
 Hi'ad. thorax and aMomen ferruginous, apical margins fringed with pale 
 
 golden pubescence dllbitata. 
 
 Apical margin of second ab<loniinal segment black, fringed with pale 
 
 golden iiubescence eilterpe. 
 
 Prothonix, apical half of first and apical margin of second abdominal 
 
 segments with pale golden puhescence peciiliaris. 
 
 Head much wider than thorax; ha.sal segment of abdomen large, second and 
 
 following .segments stained with castaneous at middle .tliorac'ca. 
 
 Head twice sis broad as thorax, shining; second abdominal segmen' with 
 
 two yellow .spots on disc riitiiaiis. 
 
 Head wider than thorax, apical margin of second abdominal segment fringed 
 
 with pale yellowish puljescence pilteola. 
 
 Ferruginous, metathomx thinly clothed with erect glittering white 
 hairs; ai)ical margins of abdominal segments fringed v.ith i)ale pu- 
 hescence pnrviila 
 
NOHTII AMKKICAN HYMKNOITKKA. 
 
 ]s:\ 
 
 Ueniis :i, MPII.KKOI*HTIIAI..^.l Hltikf. 
 
 MALES. '^■: f 
 
 Ei/fK eirciilur, convex, polinhetl. 
 
 First ahdoiiiiniil scfjiiu'iit small, iiodiforni, more or less coiistriclid at a|ic.\. 
 
 Head aii<l thonix l)laek, with hlack puhesceiiee. 
 First and second abdominal sejjnients black, remainder with Ioiik dense t'ul- 
 vous jiubescent;e. 
 
 LarKc; length 21 mm orciiN. 
 
 Small : length H.."> mm zclMyii. 
 
 Second abdominal sejjment rt'ddish brown with a bn)ad orange tiaiid on 
 
 ])osterior half, sli(ihtly interrnpted medially; tirst senmeiit 
 
 black witli a reddish brown l)and remainder Maek.C^aNlor. 
 
 Secon<I abdomi)ial sejiment ferruKinons ; apical segments darker and frinned 
 
 with blackish pnbescence ■iiac<>R/ ' 
 
 Head lar){er than usual, (juadrate ; vertex very broad behind the eyes; mar- 
 ginal cell lanceolate, pointed at ajiex MOtrvil. 
 
 Head small and of the usual form. 
 Second abdominal segment bright orange ferruginous tihori' niiil hi'iicth. 
 with short coccineous pubescence; apical margin fringed with 
 black pubescence ; first segment flattened ; marginal cell short. 
 
 l)roadly truncate at tip Itexiir. 
 
 Head and thorax black, .second and following segment.s of alxhinien dark 
 ferruginous; a])ical margins fringed with black hairs. 
 
 adiiietiiM. 
 Second abdominal segment ferruginous nhuvc ntid henvnfh. generally palei- 
 on jjosterior half, sometimes forming two large yellow spots, 
 with golden pubescence, excejit at extreme base and apex 
 where it is black; first segment nodose; marginal cell trun- 
 cate at tip rviieNtratH. 
 
 Head, thorax, petiole and second abdominal segment ferruginous; third. 
 
 fourth and fifth segments black, apex silvery ercoii. 
 
 Second abdominal segment above yellow, with long, dense, yellow pubes- 
 cence, beneath black ; remainder of abdomen above with long 
 black pubescence; first segment nodose; marginal cell trun- 
 cate at tip iiia<'ra. 
 
 Second abdominal 8egr.;ent above ferruginous, with black i)ubescence, fus- 
 cous at base and apex and slightly so nietlially; lieneath 
 black; first segment nodo.se; marginal cell broadly rotmded 
 
 at apex caiiella. 
 
 Head and thorax black, sparsely mixed with glittering i>ube.scence. 
 
 Second segment of abdomen ferruginous, with black pubescence, beneath 
 
 with a broad, longitudinal, black band ; wings fuscous, nnir 
 
 ginal cell broad and broadly rounded at apex...ilia<*ileiita. 
 
 Abdomen, except first segment, ferruginous, with black pubescence, 
 
 dense on apical margin of segments ; ai)icAl segment with pale 
 
 golden pubescence obscara. 
 
 Head with black hairs, except a tuft of reddish golden pubescence on the 
 vertex; wings blackish, with a violet reflection vestita. 
 
184 
 
 CHAKLE8 A. BLAKE. 
 
 Head and thorax black ; thorax with golden fulvous pubescence above, sec- 
 ond and followinx HeKHientA of the abdomen bright ferrugi- 
 nous; wingM blackixh, paler altout the middle. arsola. 
 
 Black ; head and thorax with long white pubescence; api(«l segmentH 
 of the abdomen with long, conrs*', whitish pubesi-ence ; wings 
 
 fuliginous; three submarginal cells Saelcenli. 
 
 .\hdomen black, with pale glittering pubescence; a broad band, more or 
 less distinctly defined, of pale glittering pul)escence. behind 
 second segment ; wings subhyaline, marginal cell lanceolate, 
 
 not abrupt at apex f^bbosa. 
 
 Head entirely black, niesothonvx and scutellum with fulvous pulHscence ; 
 second abdominal segment with two large apical yellow spots. 
 
 biocalata. 
 Hea<l and prothorax above, mesothorax and sci ellum entirely, with ferru- 
 ginous or fulvous pubescence. 
 First and second abdominal segments (except apex) black. 
 
 Large ; apex of second and the following segments of abdomen with fer- 
 ruginous pubescence Comanche. 
 
 Black; head, thorax and apical half of abdomen with dense fulvous 
 
 pubescence ; robust ; wings fulia:inous molllsdima. 
 
 Black ; head, thorax and abdomen, except first and basal half of second 
 segment clothed with long wh^ ous pubescence; wings 
 
 fuliginous ocluracea. 
 
 Medium ; apex of second and the following segmencs of alKlonien 
 with long, dense, bright fulvous \mbescence....ftalv'ohirta. 
 Black; head and thors.x with black pubescence; apical segments of 
 abdomen with long, dense, fnlvo-ferruginous pubescence. 
 
 chlron. 
 Medium ; apex of second and the following segments of aMomen 
 with long, dense, bright scarlet pubescence. 
 
 cocclneoh irta. 
 
 Thorax and second ibdominal segment scarlet-red, metathorax 
 
 black ; wings blackish violaceous ; medium-anticncnsis. 
 
 Abdomen black ; ajiex of second, the third and two apical segments with 
 
 dense scarlet pubescence occidentalls. 
 
 .\bdomen black, with only the second segment ferruginous above and 
 benea,tb, and with ferruginous pubescence except at apex. 
 
 asopas. 
 Abdomen black, second segment yellow ferruginous, with golden pu- 
 bescence except at apex, remaining segments with mixed, 
 
 black and golden pubescence hector. 
 
 Head and prothorax above, mesothorax and scutellam entirely, with dense 
 yellowish white pubescence ; abdomen dull femiginous, 
 clothed with black pubescence ; second segment yellowish ; 
 two apical segments with a patch of yellowish white pubes- 
 cence moDtieola. 
 
 Head and thorax black, with blaek pubescence, second abdominal segment 
 dark ferruginous, apex black hispida. 
 
Ndirni AMKHK AN M YMKNf (i'TKKA. 
 
 IM.-. 
 
 ■; 
 
 Mctiithontx liliiek : head ai'il iirntliorax ulinvc, sciitclluin and 
 iiiiirt' or less of iiict.itl rax, wilh fulvous yellow or whitish 
 
 |llll«'S<'flUf. 
 
 Ahdoincn altovi- hiack, kocoiuI scKinciit with a hroad, transvt-rs*', iiu'diaii. 
 dull yt'jlowisl hand, and tlic fourth, fifth and sixth sfj{nifnt> 
 with a <lt'ns<', dull, yellowish iiulicscfncc ; head and thorax 
 ahove with yellowish fulvous imhcscenee ; win^s fuliKino:i.>. 
 
 with a hroad, median, suhhyaline hand istnpn. 
 
 Ahdoinen aliove, exeept extreme hase toaiiex, with a lU'iise, hri„ht M-arlei 
 I)ulH;sfeiiee : head and thorax ahove with clay-eolored puln's- 
 
 eelioe MlliniclirHMti. 
 
 Ahdomeii with silvery j>uhes<'eiu'e ; second ,sej{meut ferruKinous, gener- 
 ally witli narrow, black, ajucal margin; thne followinjj sej;- 
 nients with silvery puhescence, and tlu' two apical s«'j;ments 
 l>lack, with extreme apex ^ilvery; head and thorax above 
 
 with silvery |»ul>i'scence H|>iOHlattt. 
 
 Abdomen l)lack, biisal half of second and the third and fourth sej{n;enls 
 entirely witli dense, pale golden, or yellowisli white piiU-s- 
 cence ; head, i)rothorax and scutelluni with pale >;olden pu- 
 bescence; win;;s dusky, with apical third fuliginous. 
 
 iiztecM. 
 
 Abdomen black, apex of tii-st, base of second, and the third and fur '-tl' 
 
 segments with dense, silvery wliite jmbcsccnce ; licad, thonix. 
 
 scutelliim. p" w.-a and hase of nietathonix with silvery white 
 
 pubescence; wings hyaline, the anterior i)air bifasciate with 
 
 Ai~ >)us WilNoiii. 
 
 Head aiul thonix ferruginous, the former larger than usual, ijuadnite. the 
 vertex very broad behind eves. 
 Abdomen beyond s«>cond si'gment black, with black jjubesccnce ; tir>t 
 
 and second .segments ferruginous peiiiiMylvaiiica. 
 
 Abdomen ferruginous, with golden iiubescence; apex of tiist. >econ<l 
 
 and the following segments blackish aiiri|»iliM. 
 
 Rufo-fulvous, tlie i)ube.M'ence of the abdomen long and dense. 
 
 EdwardNli. 
 
 First ahdomiual segment not nodiform, but gnu'.'ially dilated tow^ards ajiex and 
 
 se.ssile witli base of second segment. 
 
 Abdomen black, ajiical margins of all the segments with a fringe of 
 
 long, den.si'. golden jiuhescence ; vertex, pro- and me.sothonix. 
 
 and .scutellnm witli golden pubescence ; tegument of prothorax 
 
 ferruginous propinqua. 
 
 Abdomen black, second segment, except apical margin, yellowish ferru- 
 
 ginou.s, smooth and polished OCeola. 
 
 Abdomen ferruginous, .second segment paler, all the .segments with an 
 
 apical fringe of black pubescence 
 
 Sanbornii. 
 
 Abdomen lirown. with short golden pubescence; first segment black; 
 .seiond, except narrow basal an<l apical margins, clay -yellow: 
 head and thorax with short silver., gray pube,s<x'nce ; nie.su- 
 flavida. 
 
 thorax black. 
 
 TRANS. AMER. KNT. SOC. XIII. 
 
 (24) 
 
 AUGUST, 188<). 
 
 'W'V'PPliP" 
 
]M() 
 
 ( HAKLES A. BLAKK. 
 
 Atulciineii blm-k. with mixe<l hla<-k and silver*- piihfsceiu'f. 
 
 Ht'ud very lar^*', quiuimte. much hruafh-r than tliorax lAticeps. 
 
 Head iKit bniatliT tlian xi'unx. 
 
 Ahduininal sejimentti with an apical frinp*' of dense silvery pubescence. 
 
 xalapa. 
 First and second abdominal m-anient^ black, the remainder with dense, pale. 
 
 K'llden, or ycllowL«h white piilnticence zapoteca. 
 
 Abdomen wiih lonjt, thin, white pubescence ; size minute KHh. 
 
 FEMALES. , , V 
 
 !u/cs circnlar, coiiver, paliiiheti. ' 
 
 Body black. 
 jt\ First ahdoi.iinal segment small, nodifonu. more or less constricted at ape.\. 
 Head, thorax and alxlomen black, ornamented with jiale golden or silvery 
 spots. 
 Large ; head with a cur\"ed line on vertex and thorax, and al)domen 
 with spots and lines, all of psile golden pubescence; .second 
 abdominal segment with four p<dished dull yellow sjuits, two 
 
 anteriorly and two pne^teriorly inelanosoilia. 
 
 Head, thorax and alxlomen. aN»ve with long, dense, white pubescence. 
 
 Sackeiili. 
 Head, thorax and abdomen with long, den.se, white pubescence ; size small. 
 
 thetiM. 
 
 Fuscous, dothi-d entirely with very long, den.se. pale, ocliraceous pu- 
 
 Itescence, more !iiars<.- U-ni-ath tecta. 
 
 Ulack ; hea<l narrower than thorax : entirel.v clothed with long, 
 
 dense, <K-h race* >u.* pubescence eriillita. 
 
 Abdomen aUtve more or leiw clothed with dense ferruginous ])u- 
 
 be.scelK-e. not i9|M>tted with black. 
 Abdomen alxtve. except firs: and base o*' .seiond .segments, t'ei-ru- 
 ginoiis. 
 
 Head broad, quadrate gorf^oii. 
 
 Hea<l of \isual size and sha|ie <>r<'UH. 
 
 Nigro-castaneous. ni:irf.nnjt <<f abdominal segments fringed with pale 
 
 golden i<ul»escence lisipliOiie. 
 
 Xigro-cji.staneous: hea<I. thorax and alnlomen with ru.sty golden pu- 
 bescence parinoita. 
 
 Castaneous ; hi^d. thorax and aUlomen with pale golden ])ubescenue. 
 
 veil! flea. 
 AlMlomen alwve. exce|»t first and ba.se of second segment, oclira- 
 ceous zelaya. 
 
 .Sec(md segment of atxlomen ferruginous: size small waco. 
 
 Head and thorax alxive blackish brown ; aNlomen yellowish ferruginous, 
 
 batse and a baud beyond second segment black. .coiiiaiiclie. 
 
 Head and thorax nigro-fuHcuus, second segment of abdomen with obscure 
 
 fulvous pulK-Kiceni* te.vana. 
 
 Uufo-castaneous: hcMd round, thorax andalxlomeu with yellowish white 
 pubescenoe eraio. 
 
 
XOUTH AMKKICAN HYMKNOITKKA. 
 
 187 
 
 4 
 
 s, It'iru- 
 
 Bliick ; lu'jul ntuiidcd, vertex and alxloiiicii clothed with gulden pii- 
 
 l)eseeiu'e Hiirarin. 
 
 Brown-ferrufiinous; head round; liead. thorax and a|K'.\ of a)>d<)nien 
 
 with moderately dense, whit< ptibescence tirotll. 
 
 Fuscous: head round, with whitish imhescence ; abdomen with lonji. 
 
 silky, golden i>ul)escenee HN|»HNin. 
 
 Head, thorax and Hlidomeii with dense fulvous pnhescenee : robust. 
 
 inollipiiinia. 
 Hlaek ; densely pubesceit, that on the vertex and inesothorax bright 
 
 ochraeeous: abdomen shiniuK nii(lreiiif*oriiii!«. 
 
 Black; head, thorax and alxlonien, exce]>t first, and basjil half of 
 second sejjnient clothed with lonj; ochraeeous i)ubescence. 
 
 oviiracpa. 
 Head entirely black ; thorax and second abdominal segment above yellow- 
 ish fevruninous, remainder black iii('<lea. 
 
 Black; head not as wide as thorax, clothed above, excejit basjil half 
 of second abdominal segment ; with ochraeeous i)ubescence. 
 
 «lio. 
 Head, thorax and abdomtn with ochmccous pulK'scence ; lu'ud as wide as 
 
 the thorax Iiolotriclia. 
 
 Head, thorax and abdomen with ochraeeous pubescence; second abdominal 
 segment with two small patches of black i)ubescence ; apical 
 
 margin black Niclieliaiia. 
 
 Head and thorax above with ochraeeous or ferruginous pubescence. 
 
 F'eniora and tiase of tibiie '. th ochraeeous pubescen -e lliaKiia. 
 
 Legs entirely black. 
 
 Head broader than thorax, subquadrate aureola. 
 
 Head very large, ferruginous-scarlet; thorax scarlet: abdomen black, 
 second segment scarlet; apical margins o' the last three .seg- 
 
 ment.s fringed with silvery i)nl>escence hlltiKlK'USis. 
 
 Black; head large, sulxiuadrate, clothed with dense, coarse, sjinguin- 
 
 eous ])ubescence above paf'iflca. 
 
 Abdomen above, excei)t ba.se, ferruginous <*alir<>riiioa. 
 
 Abdomen above, except biuse, coccineous cocciiieuliirta. 
 
 Second and ba.se of third abdominal segments above, ferruginous. .creUMa. 
 
 Ab<h)men (as well as head and thorax) above with short, den.se, 
 
 coccineous pubescence; first ; base and apex of second and 
 
 third .segments entirely, black occidenlalis. 
 
 Head sulxiuadrate, \>-ith black pubescence; second abdomiiuil segment 
 with a broad, emarginate band of reddish golden pubescence. 
 
 clot J. 
 Black ; head ([uadrate, twice as broatl as thorax, which is covered 
 
 with den.se yellow pubescence IIIurpeNla. 
 
 Ferruginous; head subi)ii:'drate, vertex and abdomen with dense, deep, 
 
 golden pubescuce; snuill phwilra. 
 
 Fuscous ; head '-ounii, with deej) gclden pul)e.sceiice ; abdonu'ii with 
 
 dense, reddi.sh golden {lubescence; small zeiiobia. 
 
 F'uscous; head round, clothed with whitish jiulwscence ; second ab- 
 dominal segnuut with long, silky, golden pubescence, 
 
 aspaaia. 
 
 i>J 
 
 'Jii 
 
188 
 
 CHARLI-J4 A. BLAKE, 
 
 Body brown : head, thorax and second abdominal segment above with dense 
 ferruginous pubescence. 
 lA'gs black, with pubescence entirely black ; abdomen behind second 
 
 segment entirely black bellona. 
 
 Legs black, with mixed black and ochraceous pubescence ; abdominal 
 
 segments fringed at apex with ochraceous legiiin. 
 
 Body black, more or less clothed with a golden or ochraceous pubescence. 
 Abdomen ornamented with spots of various shapes and proportions. 
 Thorax above with a large discoidal black spot. 
 
 Abdomen with a large central black spot on second segment, connected 
 with a small spot "u each side; Ijehind second segment two 
 
 large quadrate black spots €reSHOiii. 
 
 Abdomen with a large trilobate black spot on second segment and a 
 
 black .spot at apex araciinoides. 
 
 Black ; head, thorax and abdomen with golden pubescence ; second 
 
 abdominal segment with three black .spots InxurioHM. 
 
 Legs and abdomen black ; second segment with two large silvery 
 
 spots almo.st confluent on the disc ft>rin4»Ha. 
 
 Head wider than thorax, subquadrate, po.sterior angles acute, with 
 golden yellow i)ubescence above : a triangular spot of golden 
 pubes(;ence at base of second al)dominal segment. 
 
 salutatri.v. 
 Legs and second abdominal segment ferruginous, the latter with a 
 median black spot at base and a broad, black, apical band. 
 
 balopilas. 
 Thorax with anterior portions more or less black. 
 
 Hea<l entirely black ; second abdominal segment with three bbck spots, 
 
 central one large, subovate ariadue. 
 
 Head golden or othraceous. 
 Abdomen black; second segment with four dull yellowish spots; head 
 
 and thorax above bright ferruginous prosorpiiltt. 
 
 Ferruginous, vertex and ^horax with jiaic golden pubescence; ab- 
 domen clothed with mixed, black and yellow hairs. 
 
 mixtura. 
 Alxlomen golden or ochraceous, with black spots or bands. 
 Second abdominal segment with three confluent black spots near 
 base, the central one largest. 
 Metathorax black; head golden; alKlonieu above golden, with a 
 
 broad, black band behind middle Nortoiiii. 
 
 Metathorax ochraceous, with a lateral black patch ; head and ab- 
 domen above ochraceous, the latter with two large black spots 
 
 behind middle tolnca. 
 
 Rufo-testaceous, prothorax with black, metathorax with pale 
 
 ochraceous pubescence caiiiiia. 
 
 Metathorax pale golden ; second abdominal segment black ; ajiical 
 
 segments pale golden luteola. 
 
 Black ; head and thorax with long, suberect, yellowish white pubes- 
 cence, the latter with an ovate tuft of black ou the disc. 
 
 vulpina. 
 
NORTH AMERICAN HYMKNOFTERA. 
 
 18JI 
 
 iiid st'coiul 
 belloiia. 
 uhdontinal 
 ..wgina. 
 
 ceiiee. 
 
 IS. 
 
 coiiiiectod 
 ■gment two 
 reNHOni. 
 iient iind a 
 linoides. 
 t'o ; set'ond 
 xiirioNa. 
 rge silvi'ry 
 'oriiiona. 
 acute, with 
 t of golden 
 
 liitatrix. 
 
 tter with a 
 a) hand. 
 UopilaH. 
 
 bljH'k spots. 
 Ariadne. 
 
 spots ; head 
 Norpiiitt. 
 
 scence ; ah- 
 
 'S. 
 
 nixtiira. 
 
 spots near 
 
 den, with a 
 Hortonii. 
 ad and ah- 
 hlack spots 
 ...toluca. 
 f with jMile 
 
 naiiiiia. 
 laek ; apical 
 
 liiteola. 
 •hitc pubes- 
 ic disc. 
 vulpina. 
 
 ■i 
 
 1 
 
 Metathomx oranpy yellow, with a centnil black spot : head and 
 abdomen above orange yellow, the latter with a broad, black 
 baud behind middle ; central black spot at base of second 
 
 seffuieut very large, lateral siiots minute Nolola. 
 
 Second abdominal scfiment with two larjje, elongate, somewhat 
 oI>li(iue spots anteriorly, confluent at base ; color of pubes- 
 cence ochraceous and black ; abdomen with a broad, black 
 baud behind middle ; head entirely ocliraceous. 
 
 ^iuiiiic'lirasti. 
 Second abdominal segment with one large black spot at base. 
 Metathorax pale golden, with a central black spot...altnniira. 
 Head, thorax and abdomen black, clothed with reddish golden pubes 
 
 cence; legs black, with black hairs Ilioiitezuniir. 
 
 Metathorax entirely bright golden ; basjil black spot on second 
 abdominal segment very large and broad ; apical margin alf^o 
 
 black xalisco. 
 
 Body black and ferruginous. 
 Head and thorax black, with erect, black and depressed silvery pubescence , 
 ai:ex of metathorax ferruginous, a spot on disc of metathorax 
 and sides of pleura silvery; abdomen pale ferruginous, the 
 
 segmcit;i fringed with silvery white ))ul)esceiice I'lkci. 
 
 Head entirely black; thorax rufo-ferruginous, with proit. incut lateral tu- 
 bercles; secoiul abdominal segment black at base and rufo- 
 ferruginous at apex, beyond which is a broad pale yellowish 
 
 band ; apex of abdomen black ili^.'riceps. 
 
 Head black, thorax ferruginous, apical margin of basal segment and a large, 
 oblo'.ig i>atch on each side of second, and its cjiical margin 
 
 with yellowish white pubescence tlcrilicta. 
 
 Black ; head wider than thorax, vertex red, with ferruginous pubescence ; 
 second abdominal segment with two ovate spots at basal 
 
 margin verticaliN. 
 
 Head with pale ochraceous jjubescence ; second abdominal segment with a 
 
 large black spot of black ])ube.scence rubriceps. 
 
 Head and abdomen black, thoriix ferruginous ; stjond abdominal segment 
 with a large oblong i)atch of yell'jwish white pubescence on 
 
 each side at its base ferriigiiii'a. 
 
 Head blackish, thorax ferruginous; abdomen black ; beneath, the segments 
 
 fringed with silvery pubescence electra. 
 
 Head and abdomen black, thorax and legs ferruginous; second a'-d'-iiiinal 
 segment with two ovate pubescent, pale yellow niacuhe. 
 
 Meparata. 
 Black; head not as wide as thorax, with rusty golden ])ubesccuce ; abdo- 
 men with black i)ubescence ; second abdominal segment with 
 four ochraceous macula', fourth and fifth segments ochra- 
 ceous lilllilifica. 
 
 Head and thorax ferruginous; abdomen black; second segment with four 
 rather small yellow spots, two at base and two near aiiex. 
 
 4-guttata. 
 
190 
 
 CHAHLKS A. BLAKK. 
 
 Head black, with hriftht Koldeii pnbe.scencc ; second a)>doniiimI sefiiiieiit with 
 a large angiihtr niaeiila on each side at Jiase and a transverse, 
 ohlong, siibovate macula on each side, near the apical niar<;iii, 
 of a reddish yellow piilclira. 
 
 Head black ; thorax and alKlonien, except base iind apic^il setinients, bright 
 brick-red ; second segment with a trilobate black spot at the 
 
 bii.se inilltarlH. 
 
 Body ferruginous. 
 
 Second abdominal segment ferruginous, or fusco-ferruginous, with four small 
 yellow spots; two distant on basal margin and two nuire ap- 
 ])roximate near apical margin vypriN. 
 
 Second abdominal segment ferruginou.s, with four niore or less distinct yel- 
 lowish spots; two small, on basal margin, and two large, and 
 almost confluent, near apical margin ; size r.ither large. 
 
 in II tain. 
 
 Second abdominal segment fuscous with two large, rounded, nearly ('(tnfluent. 
 yellowish or pale ferruginous si)ots near a])ical margin ; size 
 •small fii'itrvola. 
 
 Second abdcmiinal segment ferruginous, with a more or less distinct patch of 
 black i)ubescence on ba.sjil miiidle, from which, sometimes, 
 jiroceeds an oblique black line; ajiical margin more or less 
 black rorriiKata. 
 
 .Second abdominal .segment rufous, ajiical margin and remaining segments 
 fringed with glittering ])ubcscence veNtn. 
 
 iSecond abdominal segment dark rufous, densely i)U!U'tured, ai>iciil margins 
 fringed with whitish pubescence; entire insect clothed with 
 white hairs albopiloNa. 
 
 Second alxlominal .segment lerruginous, its apical margin fuscous; abdomen 
 
 clothed with scattered, glittering hairs eaiiee. 
 
 Black : thorax more or less obscurely red above, with black and white 
 pubescence; thorax bidcntato on each side ; ai)ical margin of 
 second abdominal segment with long white pubescence. 
 
 inrlaiicliolica. 
 
 Scconil abdomimil segment ferruginous; apical margin blackish, with an 
 uninterrupted fringe of dense white pubescence on middle of 
 apical margin baltpola. 
 
 Second abdominal segment castaneous; apical margin and following segments 
 with silvery pubescence ; head twice as broad as thorax, a 
 
 .strong acute spine behind the cheeks graildiceptt. 
 
 FiTTuginous; head sul)(|uadrate, wider than the thorax, the four apical 
 segments and the apical margins of the two ba.sal ones rufo- 
 
 piceous, small fVigida. 
 
 tiead wider than the thorax, sub<(uadrate, with ferruginous pubes- 
 cence ; thorax with black pubescence ; second and following 
 segments of abdomen fringed with black. 
 
 maerocephala. 
 First abdomimil segment gradually dilated at apex and sessile with 
 base of second segment. 
 ^ - Posterior angles of head acutely produced. 
 
NOKTH AMKitlCAN IIYMKNOrTKKA. 
 
 191 
 
 l)Ul)l.S- 
 
 lowiiig 
 
 Hfa<l viTV large, lU'iirly twice broader than thorax, with two hirue 
 
 spiiu'H heneath. heiiiiui iiiHn(li))leR RobiiiHOiiii. 
 
 K .1(1 very large, twice as hroad as thorax; second alxloniinal segment 
 with an ovate spot of deep golden piiheseenee on the disc. 
 
 quadrideii'i. 
 Head large, a little wider than thorax ; cheeks with an acute sjiinc 
 
 heneath cnpitatH. 
 
 Head sub(iuadrate, as wide as thorax, with two ovate sjwts of golden 
 pubescence; nietathorax with two lateral stripes of golden 
 pubescence, and two similar spots on the second segment of 
 
 abdomen, black entirely (aHltbii. 
 
 Black : head, and a transverse band on the thorax, with bright gol- 
 den pubescence; second abdominal segment ferruginous, with 
 a large, sul)ovate patch of bhuk i)ubescence at its base ; fourth, 
 fifth and .sixth segments with golden pubescence above. 
 
 <liic*ali!«. 
 Head wider than thorax, subtjuadrate, with coarse, golden pulie.s<'encc. 
 / ItMla. 
 ^' Posterior angles of head carinate, ending heneath in a short sjiine. 
 Hea<l ferruginous, with golden pubescence on vertex ; .second abdomi- 
 nal segment with two p^le yellowish spots I(>rillil. 
 
 Ferruginous; head and thorax with golden pubescence; .second alidomi- 
 nal .segment with two large testaceous macula'. .conibusla. 
 Head entirely ferruginous, shining ; second abdominal segment with 
 two large ferruginous spots, occuiiying nearly the whole seg- 
 ment above caiiadeiiNiM. 
 
 Ferruginous; head wider than thorax, basiil n>argin of secon<l alxlonii- 
 nal segment at middle with bright golden pubescence and two 
 ovate spots of same color near its apic^il margin. .blandiiia. 
 C^ , Posterior angles of head carinate, unarmed beneath. 
 .Second abdominal segment above yellowish, a large s])ot on basal middle, a 
 dot on each side and broad apical margin, narrowed laterally, 
 black ; head and thorax black, with golden pubescence. 
 
 bisiKiiala. 
 
 Black; vertex and prothorax with bright rufo-fulvous i)ube.scencc ; 
 
 second abdon)inal segment with two ovate spots and its apical 
 
 margin with bright yellowish jmbescence arail(>oi(l(>M. 
 
 Second abdominal segment above ferruginous, with a large black sjuit at base 
 and another at apex ; head with den.se golden pubescence. 
 
 coiiiiecti'iiM. 
 Second abdominal segnKnt above ferruginous, with three spots at base (mid- 
 dle one largest) and broad ipical margin fuscous; head witii 
 
 ' ochraee'.x'.s pubescence voiitliiuax. 
 
 Second Rbdominal segment above golden yellow, with three black sjiots. 
 middle (Uie large and longitudinal ; head ferruginous, occijiut 
 
 black gothica. 
 
 Second abdominal .segment above silvery, witli three black sjiots towards 
 base, middle one large and longititdiiuil ; head ferruginous, 
 occiput with two black spots iziicar. 
 
11)2 
 
 (•HAHLF> A. BLAKK. 
 
 Sec 
 
 S("( 
 
 Se( 
 
 Si" 
 
 So 
 
 Se( 
 
 Se( 
 
 (iml iihdoiniiial segment above golden yellow, witli three >)ltu'k spots at 
 i)ase and large tr«nsvei-se one at apex; head very large, (jnad- 
 rate, ferruginous cliinpH. 
 
 (111(1 iilidoniinal segment ahove hlaek, with a pale gohlen cross (extending 
 
 the entire length and width of the segment criiciHtH. 
 
 FcrrMginous; head wider than thorax, sulxiuadrate, clothed with glit- 
 tering. ])ale, golden pubescence; abdomen with jiale golden, 
 its apical margin and remaining segments with blackish pu- 
 bescence prR><*larH. 
 
 (111(1 abdominal segment above fuscous, with a pale golden cross (the lon- 
 gitudinal bar not well defined medially); heail tntirely fer- 
 ruginous |>4:tricol». 
 
 'Olid alxlominal segment above blackish, with a transverse pale gold'"i 
 band, interrupted medially; head ferruginous, vertex with 
 jiale golden pubescence Hiiri|»<>N. 
 
 (iiul ulKbiminal segment above blackish, with transverse, sinuati', pale 
 golden band ; head fuscous, vertex with a pale golden ])ubes- 
 
 cence; size minute iliiiiiitiwNiina. 
 
 Ferruginous; head round, as wide as thorax; abdo'nen thinly clothed 
 with long, erect, whitish hairs ; apical margins of segments 
 
 above with white pubescence, small pyglll*''*. 
 
 Head rounded, not as wide as thorax, ferruginous; abdomen black, 
 sparsely clothed with white hairs; apical margins fringed 
 with white pubescence, small virt;iiiit*iila. 
 
 •(jiid al)doniinal segment above black, with two round, distant, yellowish 
 spots near apical margin, which is narrowly pale golden, and 
 two approximate ferruginous dots on basal margin ; head 
 black, face and cheeks ferruginous psamuinflroiiia. 
 
 •011(1 alulominal segment above ferruginous, with ai)ical margin more or 
 less broadly black ; head entirely ferruginous, carinse on pos- 
 
 , terior angles not prominent similiina. 
 
 .V Posterior angles rounded, not cariuate. 
 
 ?read and thoi'ax black, reddish brown above : second abdominal seg- 
 ment bright ferruginous ; apical segments fringed with silvery 
 
 pubescence l»razoria. 
 
 Head, thorax and second abdominal segment above entirely ferrugi- 
 nous uioiitivaKa. 
 
XOHTII AMKIUCAN HYMKNOlTl.KA. 
 
 V.K] 
 
 (Jfiuis 1, PMA^I.^IOTHKKMA Latr. 
 
 Tliis is (listiiiiruishcd from all the other fri'iicra of ^riitillidiv hy 
 the male aiitemue heiiiir tlahellati-. Thv' neuratioii of the aiiterioi' 
 wiiiir if* much like that of the fiit>t division ot'the next j.a'iuis (ti;j:. 1 ), 
 exeept that the third sid)mari!;inal cell is not hexajronal, hut rather 
 sul)triani:iilar, shaped considerably like that of o<'('i(h'iifi(/i.i (Htr. '2k 
 
 This is only the second species of this irenus so far known, the first 
 heinir from Senetral, the P. jinhc/ldtn Latr., which (litters by the second 
 abdominal segment beinir ferruginous. 
 
 1 
 
 
 Fifi. 1. 
 
 Fig. 2. 
 
 l*Maiiiinotlieriiia ajax Hlakc. 
 
 .V(i/c. - Hlack : hoatl nuinil. dt'iiscly piiiieturcd, luoiitli clothed with pale fioldeii 
 liairs. inandihlcs hlack ; aiitcinisi' : scajH' finely piiiictiired, clotlied with ])ale 
 ulitteriiig haii-s ; tla,i;elliini consist in;,' of eleven joints, ten of which are strongly 
 tiil«'ctinate : eyes ovate: tliorax elonKate (|uadrate, rounded in front, pro- and 
 anterior half of the niesothoracic disc rufo-ferrilfiinous, coarsely i)unctnre(l. the 
 latter having two loiifiitiidinal. deei>ly-inipressed lines, scntelliini hlack, ronnded, 
 closely junietured, post-scutellar groove distinct, nietathorax roundly, truncate, 
 (•oarsely and deeply reticniate; tegul.^ riifo-fcrruKinons, i)rodiiced jiosteriorly, 
 finely punctured : wings ani]>le, fuliginous, jKiler towarils the l)ase of the externo- 
 niedian cell ; marginal cell ovate, rounded at, and narrowed to tij), first siihniar- 
 ginal large, second elongate suhquadrate, acutely ])ointed towards the hase, its 
 apical nervure sinuate, and receiving the tiitit recurrent at middle, third sul>- 
 liexagonal rect'i\Mng the secondrecurrent a little hefore the ajiical nervure, which 
 is sinuate, its exteriuil angles with ahhreviated nervures; legs hlack, clotlied 
 with glittering hairs, calearia pale ; ahdomen ovate, ha.sal .segment canipanulate, 
 closely punctured, its s'pical margin clothed with pale yellowish puhescence. 
 second segment shining, moderately closely i)unctured, intersper.sed with a few 
 erect hairs, the apical margin adorned with a hand of pale golden jtuhe.scence : 
 apical segments black. Length 1"2 mm. ; expan.se of wings 2".*..") mm. 
 
 Hab. — Florida. Harris collection. 
 
 This siK'cie:? agrees with Fabricius' descriptioti of J/. (Pmmmo- 
 tlwrmii) ffahef/atd, while 8t. Fargeau describes the .<econd abdotiiifial 
 segment as rufous. They can scarcely be identical, the hitter species 
 being from Senegal. 
 
 ! ii 
 
 TRANS. AMER. ENT. 80C. XIII. 
 
 (25) 
 
 AUGUST, 1886. 
 
194 
 
 CHARLl-X A. BLAKK. 
 
 Genus 2. IVIIITII^LA Linn. 
 
 Male. — Head usually transverse and com pressed, eyes moderately 
 large, ovate, more or less emarginate, but in a few species they are 
 entire. Ine ocelli placed in a triangle on the vertex. The anteiniai 
 suhfilif'ornk, gradually tapering to the' apex, which is acuminate, in- 
 serted on the sides of the base of the dypeus. The nuuidihles ar- 
 cuate and tridentate, but varying occasionally in this respect. The 
 prothorax extending latersilly to the origin of the wings; the teguijc 
 usually very large. The anterior wings with one marginal and three 
 subnuirginal cells, the marginal usually of a semi-circular form; the 
 three submarginal cells subequal, the second and third each receiving 
 a recurrent nervure, tiie second nervure being almost obsolete, as 
 well as the third transvei-so-cubital nervure, from the middle of which 
 emanates a more or less abbreviated nervur(>, never extending to the 
 ai)ex of the wing; in a few exotic species the third submarginal cell 
 is obsolete. The legs moderately long and pubescent. Abdomen 
 ovate, the first segment subpyriform or sometimes })etiolate, the second 
 campanulate, and the apex curved. 
 
 F'-inah'. — Head suborbiculate, or sub((uadrate, sometimes enor- 
 mously developed and armed beneath with two or more formidable 
 spines ; the ocelli always wanting, the eyes ovate, entire ; mandibles 
 arcuate and usunlly unidentate. Thorax longitudinal and truncate 
 interiorly and posteriorly; in some exotic species nuich narrowed 
 behind. Legs more robust than in the nude and armed exteriorly 
 with spines. Abdomen similar to the male. 
 
 The species, which are not numerous, may be divided into three 
 divisions, viz. : 
 
 DIVISION I. 
 
 Neurati<m of anterior wing as represented by figure 8; the first 
 abdominal segment small, but gradually dilated to apex, where it is 
 sessile with the base of second segment, as in figures 4 and ."). 
 
 Fig. 3. 
 
 Fig. 5. 
 
NOIMH AMKHICAN IIYM KNoPTKHA. 
 
 l!»o 
 
 Mnlilln h<'xaKOiia Say. 
 
 Mall'. — Head lilack, transvcrsi-ly rouinU'd, not «.s wide as tlii' tliorax. clost'ly 
 jmiicturi'd, thinly t'lotlicd witli short, crt'ft, silvory liairs ; scape of antcnniv 
 tufted with silvery puheseenee, tla^'elluin hhickish fuscous; eyes ovate, eniarKi- 
 nate, ocelli distinct; niandihles Mack. Thor.ix black, closely punctured an<l 
 liavint! four slightly ini])ressed, lon^'itudinal lines on the disc, thinly clothed with 
 erect pale hairs, niori' dense on the prothor.ix; scntelluni rounded; nietathorax 
 rouudly truncate, with reticulate ])unctures. dorsal jrroove not extending to the 
 middle; winjjs puri'.lish fuli>;iiious, marginal cell ovate rounded at apex; first 
 suhniar^rinal cell elongate (juadrate, narrowed towards hase, second suhniarginiil 
 smaller and sharply pointed towards the hiuse, receiving the firet recurrent uer- 
 vure at middle, its apical nervure u.rcuate ; third tuhniargimil hexangular, re- 
 <'eiviug the second recurrent nervure a little heyoud the middle. itsa|)ical angles 
 with ahhreviated nervurt's; a tnmsparent line crosses the first suhniarginal cell 
 at right angles to the costn svnd continues longitudinally through the second and 
 third suhniarginal cells, and a similar si>ot in the third di.scoidal cell: tegul'.e 
 ]iolisht'd. Legs hlack, clothed with whitished hairs, calcuria white. Alxloiuen : 
 hasal segment black, finely i)unctured ; second segment dark honey .vellow, finely 
 and remotely iiunctured, its apical margin and remaining segments rnfo-t'uscons, 
 fringed on the apical margin with jiale ferruginous pubescence, ventral surface 
 same as above, with the exception of a dark stain as base of second .segment. 
 Loigth i;5-lf^ mm.; exjiause of wings IS-Jo mm. 
 
 Hal). — Indiana, MLsson i, Kan.si.-*. 
 
 var. II BRiAXfs Blake, has the aiiical margins of the abdominal .segnuiits more 
 densely clothed with black pubescence, and having the dorsal groove of t he meso- 
 thorax more distinct. 
 
 var. li VKiii-VNs Say, has the marginal cell truncate at tip, the dorsal groove 
 of the metathor.ix extending beyond the middle, .\hdonien : the sicond .seg- 
 ment with large renu)te punctures, liright rufous, the bii.siil and ajiical margins 
 black. 
 
 Since the publication of tlie Synopsis (1871) niuch more material 
 has been collected from all ])art.s of North America, among which I 
 have been fortunate in obtaining M. lu'.atffona of Say. On close 
 examination bn'a.rit.s and vigilanH prove U) be only varieties of 
 hejcmjona. 
 
 Mutilla Cirotei Blake. 
 
 Mule. — Head and thorax hlack, head not as wide as the thorax, rounded, clo.sely 
 punctured, clothed with short black hairs; antennse hiackisli. scape rufou.-;, 
 clothed with glittering pubescence ; eyes ovate, emarginate. Thorax robust. 
 sub(|uadrate, rounded behind, thinly clothed with short black haii-s, pro- and 
 niesothorax closely punctured, the latter elevated, nietathorax coarsely reticulate, 
 abruptly rounded; wings ample, pale fuliginous, marginal cell large, sublanceo- 
 late, gradually rounded to ti)), three distinct subniarginal cells, the first nearly 
 as long as the marginal, second not (juite as long as the first, receiving tlie first 
 recurrent nervure in the middle. Legs black, clothed with fulvous haii-s, calcaria 
 whitish. Abdomen elongate ovate, ba.sal segment black, closely punctured, 
 
 m 
 
 ) <i 
 
l!Mi 
 
 (MAIM, IX A. HI,AKi:. 
 
 tliinly clotlicd with brownish hairs, st-roud Hc^mcnt riiivoiis, (iiioly piiiicttirt'd, 
 huviiit; on the disc a longitudinal hhick patcli, I'xtfndiiiK nearly to the apical 
 niaruin, the ri'mainint; si-jinicnts clotlicd with dense golden t'lilvons piiliescciice ; 
 under side clothed with short fulvouH hairs. Lciitith l."i mm.; expanse of winjis 
 •.i.").,") mm. 
 
 Hal). —Colorado. 
 
 .Milt ilia OH.ja<*a Blake. 
 
 Mnh'. Mead and thorax black, closely and deeply imncturcd. clothed with 
 scattered pale yellowish pulKjsoence ; eyes larjje, ovate, emarninatc; anteiime 
 l)lack ; metatliorax rounded, ixtsteriorly al)r\i|it. with a scattered black pubes- 
 cence; winj;s blackish, jialer towarrls the base, niar>;inal cell moderately lon^. 
 rounded at tiji, extondiuK beyond the third submarifinal, three snbnnir);inal cells. 
 
 the tirst about as 
 
 th 
 
 e mar<;ina 
 
 1. the second shorter and narrowed towards 
 
 the first, receiving the (ii-st recurrent nervure about th'' middle, the third sub- 
 marginal clearly defined, sub|K>ntaKonal. Lejis black, clothed with lonfi, pale, 
 yellowish pubescence, .\bdonieii elontrate ovate, fcrrufiinous above and beneath, 
 finely ])unctured, ai)ical margins of all sej.'nieiits f'rini;ed with bri;;ht fulvous pn- 
 bescence; basal sej;ment black. Len<;th 1.") mm.; expanse of winjfs 21 mm. 
 
 /Vmd/c— Head deep black, densely i>uncture(l, wider than the thorax, with 
 scattered, erect black hairs; eyi's larKc. ovate, entire ; antenme black. Thorax 
 
 ^~^ 
 
 slii'lillv concave; metatliorax 
 
 icrruj;inoiis, efonjrate i|ua(lrate, sides s 
 abruptly truncate behind. Lcjis shiniiif; black, clothed with trlittcriiifi 
 hairs. Abdomen ovate, black, apic'al iiiarKin of basal .segment frinjred 
 with pale golden pubescence, on the dorsal surface of second segment 
 there are two elongate i|uadrate iiatches of dense, jiale, g<il(leii jiubes- 
 cence. exteiidiii<; half way to the ajiical margii 
 
 11, wiiicli IS o.iiame 
 
 nted 
 with a broad band of pale golden pubescence having the interior mar- 
 gin sinuate ; the remaining segments have a ])atcli of pale pubescence 
 (Ui each side, together forming a V shajied line to the ajiex ; beneath, 
 
 till' margins of the segineiits are fringed with pale glittering hairs. Length 
 
 l.'i mm. 
 
 Mah. — Mexico. I'fof. F. Siiniichi'ai^t. 
 
 Iti .some iti(livi(hijil.< the lictid is t'crnitrinoii!- 
 
 .^Iiitilla ornativpiitriN (resson. 
 
 /•"('Hi/i/c. — Kufous. very den.sely punctured. Head triinsverse, not (|uadrate, 
 broader than the thorax : the mouth with long ochraceous imbcscence ; eyes mod- 
 erate, ovate, entire; mandibles blackish; anteniiie blackish, sericeou.s, the three 
 or four basal joints rufous. TlK)rax elongate, narrow, .somewhat rounded in 
 front, the sides subparalkd, a little strangulated about the middle, and again 
 widened posteriorly, the sides and behind abniiit; ujiiier surface with a short 
 fuscous pubescence, the sides with a very short, fine, dense, cinereous jiile. Legs 
 rufous, with ochraceous pubescence ; tips of the femora, most of the tibia? and 
 the tarsi, fuscous. Abdomen elongate, ovate, iiiuch narrowed to the apex, black- 
 ish above, reddish beneath : all the segments with a broad apical band of dense 
 silvery cinereous pubescence, the anterior middle of which is more? or less sinuate 
 
 r emarginati' : large basal segment, with a large jiatcli of silvery sericeous pn- 
 lu'scence, sometimes obsolete on each side at base ; the apical segments above are 
 
NOinil AMKKK'AN MYMKNol'TKKA. 
 
 19/ 
 
 soiiu'tiinos tiiiKe<J witli roddisli.aiKl in one siicciiiK'ii the liir>{<' Imniil st'Kiiii'iit iibovc 
 is tiiin<'<l witli rrddisli; the vfiilnil st'Kinciits liavc an upiciil iViiint' of silvery 
 rincrfoiis pul>fS(«'ii<('. liCiiHtli !»..") 11 iiiiii. (Crcssiui.) 
 
 Hill). — SmtluTii ami Wtwlrrn Stutt's. 
 
 Miitilla floridniin I^iakc 
 
 ^V»l((/<■. — Hciid rouiiil, black, vfrti'X clothed with pale u'ddcii pul)escciice, iii- 
 tersp<Tse<l witli sctittered erect hlack hairs ; eye.s ovate. Thorax ovate, narrowed 
 posteriorly, rilfo-ferriiKiin»ns, closely puiiclured, the iiiesothorax produced later- 
 ally into ()l)tiis(; tubercles, and beariiifi lonj;, erect, black hairs, nielathorax 
 abrujitly truncate. Lejjs bhu'k, except the posterior feniora, which are rut'o- 
 fuscons, clothed with |iale huii's, iiiler'ucdiate and i)osterior tibiii- armed with 
 short strou); spines. Abdomen ovate, black, sparsely clothed with lonj;, erect. 
 black hairs, ba.siil Hcpniont cam]ianulate, clothed with )ialc golden i>ubcsceiice, 
 second se;;ment having at the base a niiind spot of pah' golden puliesci nee, and 
 two similarly clothed sulxjuadrate lateral spots at the apical marj.'in : niuler 
 side of second seginent shining;, finely imnctured, ventral segments frini;ed with 
 l)ale Klitterinj; pubescence. Length !l mm. 
 
 Hill). — Florida. Harri.-; (•(illcction. 
 
 Tlii.< iiiiiy l)t' a variety of M. trlxii/nafd, hut is oiisily (listiiii:uisli('(l 
 l)y the .xliapc and color of the thorax, and the hiusal .xogmt'iit of tlu- 
 ahdoiiicii not ht'inir pctiolatc. 
 
 .Miitilla toltecn Blake. 
 
 Feiiuile. — Head rounded, wider than the thorax, closely and llnely punctured, 
 ilensely clothed with fine, pale i;iildeii pubescence; cheeks and a patch beliind 
 each eye bhu'k : eyes ovate, larKe ; antenine and niandililes dark ferrnuinous, 
 tips of the latter t)lack. Thorax ovate, narrowed behind, closely reticulate, 
 dark ferrujiinous, imterior margin black, with a small ovate tubercle (Ui each 
 side, mcsothorax with two small irreuularly defined ])atclies of pale gulden 
 pubescence, bidiiiid each of which is a small obtuse tooth : metathorax rounded 
 ]iosteriorly, with two lateral striix^s of jiale trolden ))ubescence. li<'KS 
 ferrufiinous, thinly clothed with ulitterini; hairs; calcaria whitish. 
 Abdomen ovate, suddenly narrowed to apex, ba.sal se^rment subcylin- 
 drical. den.sely clotheil with jiale golden |iubescence, mixed with scat- 
 
 u- 
 
 
 tered erect pale hairs; second sef;iuent densely ]iuncture(l, dark ferr 
 ginons on the sides and anterior mar(iin, ni'ar which are two ovate, 
 exteriorly eniar};inate maciilie of jiale golden imbescence, behind which 
 the dorsal surfac(> of the sejiiuent is nearly black ; on the ajjical mar- 
 gin is a band of i>ale jroldeii i>iibescence, deei)ly emariiinate internally 
 at the middle, and which extends alonn the under side of the seKuient to the 
 base ; the third segment has a band of the same, with a small triangular, dark 
 fernifrinous space at middle; the reniainiii>r sejiments banded in the same man- 
 ner, all liaviiiK lateral blackish patches; ai>ical sesnients closely punctured; 
 under side of second segment iwler than above, closely jiunctured, and having a 
 centnil longitudinal carina. Length 8..") mm. 
 
 Hah. — Mexico. Prof. F. Suniichra.«t. 
 
 M 
 
 ^m 
 
V.)H 
 
 l'U\Ul.\:s A. HI.AKK. 
 
 Miitilln triNiKiinta Kluki . 
 
 Fi'iiiiilf. niack, licad niuiid, clotht'd with (IciiKf. |ial«'. tcoMt'U pulM'j«'i'nc«', in- 
 trrspi rsfd willi sciitlcrt'il, creel. l)liiek liain* : eyc-s ovute. Thorax ovato. HluUleiily 
 iiiii'i'iiwed |)(isteri(irly, coarsely i>uiictiired, the clis*- (Ieiis4-ly clothiil with |)ale 
 Koldcii piiliescence, tlie IVoiit and sidcH iN-ariiiK lon^ Idaek hairs, nietatiior.ix 
 truncate. Lcjim Mack, thinly clothed with i>aU- hairs. interniMliate and |)osterior 
 t Utile armed with spines. .Vlxlonien ovate pctiolate. hiLsal seirnieiit fln»dy [tunc- 
 tured, the disc thinly clotlied with pale ;;olden pulw'seiMU'c. stToiid and foilowiiitf 
 sefinu'iits clothed witli dense hiack i»nhesceiice. the former In-arinn thn-e ronnd 
 spots of pah' n<'l<h'n puheseen<-e. the one at Ici.s*- small, the otht-rs larger and 
 idaced laterally near the apical niarKin ; ajK-x with a small spot of pale puhi's- 
 ceiice : under side of second segment coarsely piincturv<l. ventnti segments 
 Irinucd with jxile jrlitterinn hairs. U-nnth it mm. 
 
 Hal). — Florida. In tlif Ilarrij* t'dliectiim. 
 
 .^Iiitilla l*romotlion Itlako. 
 
 Miilf. — Kiif()-ferni){inous, head round, closely punctured, face Ih-Iow the line 
 of the eyes hlack. clothed with obscure yellowish hairs, eyes larne, ovate, emar- 
 ninate, niandililes hlack, with a rufous <lash iR'fon- the tijis. which are hide^itate. 
 Thorax elongate s\il)(|uadrate. rounded in front, ihinly clothed with ohscure 
 rufous iiultescence, closely punctured, the mesothorax with two deeply impressed 
 longitudinal lines, nietathora.x rouniled. <'oarsely reticulate: tejruhe tinely punc- 
 tured, t'liscous; win^s ample. fuli);inous, niar(;inal cell elongate ovate, truncate 
 at tip, second suhmarginal sulxiuadr.ite, pointed towanls lKi.se, receiving the first 
 rccurroil iiervure at middle, third hexagonal, receiving the s«'cond recurrent 
 heyond the mi<ldle. Legs hlack, thinly clothed with pjile hairs. Alxlomen ovate, 
 hasal segment campanulate, hlack, tinely punctunnl, sei-ond and following seg- 
 ments rufo-ferruginous, finely punctured, the apical margins fuscous. fringe<l 
 with hlackish puhescence; under side same iLS aUive. Length 14 mm.; expanse 
 of wings ■2.").") mm. 
 
 Hal). — Louisiana. ! ^ f-i^ 
 
 Mulilla voiitraotH Say. 
 
 }fnl(>. — Hody entirely hlack beneath, inclusive of the fe<*i ; al)ove. ferrugiiums 
 yellowish. Head black below the line of the eyes; niet'"<thonix. jietiole, anterior 
 and lateral declivities of the abdomen black: anterior half of the first .segment 
 of the tergum black; wings blackish fuliginous, somewhat jKjler in the middle; 
 second cubital cellule wide beneath and contracted, but not anguhtted at the 
 radial cellule; third cubital cellule so much contracted ai base that its extreme 
 nervure is oiiposite to and Joins the recurrent nervure. l«ngth about half an 
 inch; 11$ mm. (Say.) 
 
 Hal). — Arkansas and Missouri. 
 
 .^iitilla Sa9 i Blake. 
 
 Male. —Kmid transverse, rounded, black, moderately punctured, face thinly 
 clothed with whitish jjubescence; antenna" piceous. scape clothe<l with glittering 
 pubescence ; eyes large, ovate emarginate ; mandibles dark nifous Itefore the tip ; 
 thorax robust, ovate, narrowed posteriorly, pro- and .nesothorax rufous, closely 
 punctured, the latter hearing three discal, longitudinal, slightly impres.sed lines ; 
 
NORTH AMKKKAN IIYMKNOPTKIJA. 
 
 19» 
 
 Hcutclluiii rtnt'ly punctunMl ; inetiktlionix roiiiiilly truncittf, coiirsely n-liciiliiti', 
 (liirsal (.'I'Dovc not cxtciKliiiK tutlii' inidillo; sides riosi'lv piiiictiin'il ; tt'^iilir oviit**. 
 ininiitt'ly piiiiclurcit ; \viii){s )'iili);iiiiiiis, iiiiirKinul cell clitntditc ovate, iililii{iicly 
 tniDfute lit tip, flrst Hiil)iiuirKin)il Ioiik. iiiirruwcd to )>iih(>, s«>e<)nd siiniliir in form 
 and pointed towards liase, its apieal iierviire areiiute, third irregularly hexagonal. 
 its outer angles with ahhreviated nervnres: le^fs Mack, thinly elothed with ^li'* 
 teriiiK hairs, ealcariu white; abdonieii ovate, rarrowed to apex, hnwil segment 
 tilack, closely pnnctnred, siihs«'ssile witli the second, which is hri^lit ferruninoiis. 
 finely punctured, the punctures heconiin^ finer and denser at sich-s, apieal inar^iin 
 lilacki^h. friiiKcd with hhick puliescence ; segments (hirk ferrutfiiions, tiiiely punc- 
 tured, frinued with brownish hlack ])iil)i'seeiice, ventral .surface same as above. 
 Leii^'th rJ mill.; exjiaiise of win^s 1!) mm. 
 
 Hab. — Texas. H('ltVa«.'»'. 
 
 .tllltillH N(>II«>.V (lUer. 
 
 .Vd/c. -- Head roundly tnmsverse, densely elothed with ajipresHed, pale );olden, 
 or oehraceous |iubes<'ence ; seaiK-of anteiinie pale rufous, clothed with pale jjlitter- 
 iiiH |)ubescenee. fhi^ellum priiiiiose. mandibles ferruginous, tippeil witli >daek ; eyes 
 ovate, acutely einarKinate within, ocelli |iroiniiieiit ; thorax robust, ovate, finely 
 and densely riiKosi^ ; jtrntliorax fuseo-testaceous; nietathorax roundly truncate, 
 CHstaneons, coarsely reticulate; sides fuseo-testaceoiis, coarsely pnnctnred, entire 
 thorax thinly clothed with sliort, erect, pale hairs; lejrs castaiieous. elothed witli 
 moderately lon^.', (lale, (jlitti-riiiK hairs, ealcaria pale; wiii^s pale fiiseous, paler 
 towards the ha.se, tlireo submarjriiial cells, marginal (tell broadly ovate, fii-st siih- 
 Miartrin.'il subtriaiijiiiliii'. l>ointed towards ha.-ie ; second smaller and sharply pointed 
 towiirds the first, and receivinu the first recurrent nervnre a little beyond tlie 
 middle: tliird snbmarKinal hexagonal, its basal iiervure arcuate; teu'uhe honey 
 yellow, smooth ami very convex; abdiuneii ovate, narrowed to ai)ex ; basjil si'j;- 
 meiit rufous, second .set'incnt fulvous, shiniiiK, finely and remotely |iuiictnred. 
 thinly dothtd with short, pale, erect pubescence; remaiiiiiiK sejiincnts rufous: 
 apical margins frinired with pale golduii iiubescencc above and beneath. Leiipth 
 14 i.ini. ; cxmnse of winjrs 'S-i mm. 
 Hal).— Cuba. 
 
 .^(itilln florideiiNlM Blake. 
 
 Male. — Head t ansverse, not as wide as thorax, black, coarsely punctured, face 
 clothed with wnitish pubescence, lonjrer and den.ser about the mouth; anteiime 
 piceous. scape clothed with jrlitteriufr hairs; eyes ovate, acutely emaiKiiiiite : tho- 
 rax robust, ovate, pro- and mesothorax ferrujiinous, closely punctured, the latter 
 )>earing two discal, longitudinal, faintly iniiu-essed lines, a.iical margin black : soii- 
 tcllum rounded, punctured ; metathonix rounded, eoar.sely reticulate, black at 
 apex; tegulff' black, large, polished; wings moderate, fuliginous, marginal cell 
 ovate, obliquely trniicate at tip, first suhniarginal long and narrow, second long, 
 pointed at base, receiving the first recurrent a little before the middle, tliird 
 irregularly hexagonal, its outer angles with abbreviated nervnres; legs black, 
 thinly clothed with glittering hairs, ealcaria white ; abdomen ovate, narrowed to 
 apex, ferruginous, finely imnetured, apical margins of ail the segments fringed 
 with ferruginous pubescence, under side of thorax black, coarsely jiunctured, a 
 ferruginous spot lietween anterior and middle coxte. Length 1,3 mm. 
 Hab. — FKirida. Three sjiecimens. 
 
 s*? 
 
 m^mmm^mammmmmtm 
 
 mmmmmmmm 
 
200 
 
 CHAKLE* A. BLAKK. 
 
 Tliiri i^pccier* i.« chiK'ly ullied to Stujl, and may W' only » variety ; 
 it (litttT.s, however, in havinjr the har>al ahdoniinal segment t'orru- 
 ginoiir', and (h'sc of nietathorax tlie .<anie color. 
 
 .^iitillH exiinia n. sji. 
 
 Mule. -\U'-<ii\ roiiiidcd. not i.s widi- as thorax, cl<ithe<l witli erect iiiile liiiirs; 
 iimii(lil)les castiiiieous. scaiie of antennsF ferrugitKUis. flagelliiir in-uiiiose ; eyes 
 ovale, very finely reticulate: thorax ovate, pro- and inesotliiuikx Idaek above, 
 nifiose, clot lied witli jwle yellowisli |>iibes«-ence : nietatlior.ix nitons, closely punc- 
 nired, ]iirtiis Idack : lejrs dark fusci/us. thinly clothed with pale liairs; wings 
 fuscous, paler about the middle, niar^nal cell ovate, truncate at tip, first subinar- 
 ginal cell us hirge a.s tlie nianfiiial. ^t-ond subniarfiinai suhtrianjjular, receiving 
 the first recurrent ner\ure near the ba.-i«-. third sulmiarginal subjK'ntagoiial, its 
 outer nervure sinu-.ite and confluent with the second recurrent; tegnhe casta- 
 ni'ous, finely punctured ; alMlonien elongate ovate, nifo-castaneous. l»asal segment 
 jtetiolate, closely punctnri'd. clothwl with erect pale hairs; second segment finely 
 punctured, piiler on its apical half, thinly clothed with erect fuscous hairs; apical 
 margins clothed with fustvius, mixe<I with pale glittering hairs; ventral surface 
 same as above. Length h mui.: ex]ian<M; of wings 13 mm. 
 
 Hah. — Arizona. 
 
 Allied to M. tiDiideifi* Bhike. hut can he dij^tinguished hy the 
 thorax heiii<r hlaek above. 
 
 Mutilla leona Blake. 
 
 i^cm«/('.— Head round, as wide a* the thorax, ferruginous, closely covered with 
 elongate jjuuctures; mandibles ferruginous, the tips black; eyes large, ovate, 
 entire ; thorax ijuadrate, ferniginou>. cluisely punctured, lateral declivities smooth, 
 metathorax coarsely reticulate, abruptly truncate; legs rufo-testaccous, tiiinly 
 clothed with pale hairs, calcaria |ale : abdomen ovate, black, clothed with ap- 
 liressed black pubes<-ence, Ita-sil .-ieginf-nt testaceous, its apical margin fringed 
 with pale golden pulK-.sceMce : istrt-ond segment having two short longitudinal 
 stri|)esof pale golden i»ulH-seence : place«l laterally near the bas(; ; apical margin 
 and remaining segments, except the middle of the third and fourth, clothed with 
 jiale gohlen i)ubescence. Ix-ngth ."iJi mm. 
 
 Hah. — Mexico. Prof. F. Suniiclirar*t. 
 
 ]VIiitilla pallioepN Cre«s<jii. 
 
 Fi'iixih'. — Head densely clothwl with {wle ochniceous pubescence ; mouth and 
 antennu- rufo-piceous, the latter blackish towards the tijts; thorax densely and 
 roughly punctured. blackit>h bn>wn above, clothed with reddish jjubesceiice, 
 beneath and behind rufo-piceous. sides without distinct tubercles; pleura con- 
 cave; nu'tathonix suliquadrate. M-arcely narrowed behind, the jiosterior face 
 nUher iibrui)t, the lateral iuargin.s dentate : legs rufo-piceo\is, clothed with ochra- 
 ceous iiubescence ; the tibia' with a rr>wof long acute spines; abdomen sul>ovate, 
 nuich narrowed towards the tip. convex above, closely juinctured ; basal .segment 
 small, somewhat cam|ianulate. black, with the |M»sterior margin den,seiy clothed 
 with ochraceoiis pulK'sceuce. the base with a stout, obtuse tubercle on each side ; 
 second segment large, rufo-ferrufcinoos. thinly clothed with ochraceous pubes- 
 cence; on the basal middle a suhquadrate black patch, .tlightly margined on each 
 
NORTH AMKKICAN HYMKXOI'TKRA. 
 
 201 
 
 .side with ot-hraceous, the aiiical margin densely chtthed with ochraceous pubes- 
 eenee, iiiHrjjined before with l)lack, whieh is deeply creiuihited beliind, especially 
 0)1 the middle ; reiiiainiuK segments densely clothed with ochraceous pubescence, 
 with a large ])atch of black |>nbescence on the disc of the third, fourth and fifth 
 segments, hi'-gest on the third segment; 'i.jiieath ferruginous, the ai)ical margins 
 of the segments fringed with ochraceous pul)esceuce. Length 10 mm. (Cresson.) 
 
 Hal).— Cuba. 
 
 9Iiitllla (lubiat^a Smith. 
 
 Female. — Ferruginous, the eyes, flagellum and tips of the mandibles fusco-tes- 
 taceous ; thor.ix, as well a.s the head, closely and strongly jiunctured ; the sides 
 of the former parallel, or in some specimens slightly widest posteriorly, tips of 
 the femora and tibiie slightly fuscous; abdomen ovate, the apical margins of the 
 .segments have faciie of silvery white i)ubescence ; beneath ciliated with similar 
 pubescence. Length (i..")~ll mm. (Smith.) 
 
 Hal). — Florida, Georgia, Colorado. 
 
 Thii^ species in coloring corre.s|)ond.s with M. ferrugata of Fal)riciu.s, 
 hut the thorax i.s ofcjuite a ditierent form to that of the iasect which 
 is considered to repre.'<ent that species ; in the present species the 
 thorax is more elongate and the sides nearly parallel ; in the other it 
 is shorter, and gradually narrows towards the abdomen. 
 
 iVIntilla euterpe Blake. 
 
 Female. — Ferruginous ; head round, finely and closely punctured, face deeply 
 e,\cavate at insertion of antennte ; eyes ovate, finely reticulate ; antennie fu.scous, 
 flagellum pruinose, scape finely punctured ; mandibles dark tVs ruginous l)efore tlie 
 tips ; thorax elongate-quadrate, emarginate ai sides ; pro- and metathorax rounded, 
 the former scarcely as wide as the latter, closely and deej)ly punctured, metathorax 
 abruptly truncate, stained with fuscous at apex; flanks of mesothorax smooth: 
 legs black, thinly clothed with pale pubescence; intermediate and posterior 
 tibiffi feebly spined, calcaria white; abdomen ovate, ba.siil segment black, .second 
 minutely puTictured; apical margin broadly black, wider at middle on di.sc. 
 bearing a short longitudinal line of pale golden pubescence ; a]>ical margin 
 fringed with similar pubescence, third segment blacik, apical segments fusco- 
 ferruginou.s, fringed with hairs of th(! s.inie color. Length 12 mm. 
 
 Hab. — Florida. 
 
 This species is easily recognized by the form of the thorax ; it is 
 allied to fidicula Smith, which, howcner, has the abdomen longitudi- 
 nally rugose. 
 
 Mutilla rufk St. Farg. 
 
 Male. — Rufo-ferruginous ; he.id pubescei;t, fare black, reddish on the vertex 
 and between the eyes; vertex with blackish hairs; antennif black ; thorax l)lack 
 beneath, reddish above and on the sides, hairs rufo-griceous ; abdomen ferrugi- 
 nous, pube.scc"' , first segment and posterior >aargins of all the segments black- 
 ish ; seconci uea -ly naked, hairs rufo-griceous ; lof's black, clothed with silvery 
 hairs; wings blackish violet, the first subniarginal cell having a transverse. 
 
 TKAN8. AMER. ENT. 80C. XIII. 
 
 (26) 
 
 AUGUST, 188<J. 
 
202 
 
 CHAKMCH A. BLAKi:. 
 
 traiiisi)an'iit lino extftidiiigr in an atifrlc to tlu' costa ; second and tliird snbinar- 
 jiinal and tliird discoidal cells havinfj a similar linv. Lcnjitli KJ niui. ; cxjnisc of 
 wings '2J nun. (St. Farg.) 
 
 Hub. — Potinsylvunia, Atliintic Stutes. 
 
 DIVISION II. 
 
 Neuration of anterior wing at; ivprosented by figuro 6; the fii*st 
 abdoniiiial sogiuent small, .subuoditbrm, or cyliiulrieal as in figures 
 7 and 8. 
 
 ;\ n 
 
 Fig. (>. 
 
 V 
 
 Fig. 7 
 
 Fig. «. 
 
 .Miitilla Neriipcti Say. 
 
 Mule. — IJlack ; head and thorax covored with coarse confluent ]»unctnres. 
 thinly clothed witli scattered, pale yellowish hairs ; antenna' and mandibles 
 black; eyes ovate, cniarginate ; thorax: anterior angles of prothorax subacute 
 sutures of the uiesct- and nietathorax deejily inipres,sed, the latter very coai-sely 
 reticulate; wings subhyaline, apical margins slightly cloudeil, marginal cell snh- 
 lanceolate. (irst submargiual small, second large, receiving tlie first recurrent 
 nervure near the ajK'x, tliird irregularly pentagonal, its anterior angles with 
 short nervures, second discoidal cell large ; legs black, thinly clothed with glit- 
 tering hairs ; abdomen ovate, basal segment short, armed on each side at its base 
 with a stout tooth, the under side having a longitudinal carina, terminating an- 
 teriorly in a tubercle; second segment covered with large, deep i)Uiictures, apical 
 margin fringed with silvery pubescence ; the remaining segment.s having a few 
 scattered, short, silvery hairs ; under side same as above ; lateral sutures distinct. 
 Length !> mm. ; expanse of wings l(i mm. 
 
 Hab. — Eas^tern State.s. C'ollection of Mr. Edward Norton. 
 
 ^Iiitilla KraciliM Smith. 
 
 .Vk/c. -Hlack; head clothed with silvery imbesccnce ; wings hyaline, apical 
 margin clouded, marginal cell elongate ovate; first and apical margin of second 
 abdominal segiiieiit clolhed with silvery pulH'scence; eyes emargiiiate. Length 
 7 mm.; expanse of wings ];{ mm. iSmith.) 
 
 Hab. — Texas, Me.Kieo, lirazil. 
 
 .Mlltilla CllbviiMis Blake. 
 
 Femnle. — Rufo-testaceous ; head rounded, clothed with dense, i)alc golden pu- 
 bescence ; scajie of aiitennte rnfou.s, flagellum piceous ; eyes ovate, prominent; 
 thorax elongate ovate, narrowed posteriorly, <'oar.sely punctured, meso- and 
 nietathorax armed at the sides with a tootli, those on tiie latter acute, nietathorax 
 roundly truncate; legs riifo-testareou-i, the intermediate and po.sterior tibia' 
 
NOirril AMKKICAN IIYMICNOI'TKIJA. 
 
 20:} 
 
 snbiniir- 
 i'X\)jise of 
 
 the first 
 n figures 
 
 amied witli a row of spines, tarsi ciothi'd with iKilo <rolrton jmhesci'iict' ; abdoiucn 
 ovate, basal si'unit'Mt cyliiKlricai, clothed witli dense, pale iiuhesc«Mice ; second 
 .seirinent densely |iMnctni'e(l. with a cordate black i)atch at theliase; third se^- 
 uient clothed with dense, ]y,il Liolden luibescence, with an ovate black patch on 
 the middle: the reinaininj; se>;nients clothed with dense, jiiile pubescence; ven- 
 tral sej;niei'*s frin<;eil with pale hairs; nnder surface of entire insect |)aler than 
 above, hensfth H..5 mm. 
 
 Hal).— ("tiha. 
 
 .Miitillariiialoa RIake. 
 
 FniKih'. — Dark ferrnjriuoiis, hea<l rounded, wider than the thorax, face and 
 vertex clothed with deep iiolden jiiibescence, posterior marjiin black; antenna': 
 scape and tirsl joint of fiaKclliim ferruKinons, the latter fuscous; eyes ovate, 
 larjie: thorax elongate ovate, narrowed posteriorly, closely reticulate. niar>;ius of 
 the disc black, metathorax Kra<hially rounded, armed on each side in front with 
 an acute tooth; lejjs ferruginous, clothed with a few glitterinK hairs; abdomen 
 ovate, second sejjment closely ptinctured, sides of apical margin with dark stains, 
 the ren»ainin'_' segments clothed with deej) golden pubescence, having a denuded 
 central line; nnder side paler than above, lateral carina' distinct. Length (>..') 
 
 ])iiiicture,s. 
 mandil)les 
 < subacute 
 ry coai-sely 
 ill cell sub- 
 recurrent 
 igles with 
 with glit- 
 at its base 
 nating an- 
 ires, apical 
 ving a few 
 es distiuct. 
 
 Ui. 
 
 iue, apical 
 1 of .second 
 Length 
 
 golden pu- 
 trominent ; 
 nieso- and 
 inetathonix 
 orior tibiiv 
 
 flal). — Mexico. Prof, F. Suniichiust. 
 
 Ilntilla yiioataiia Blake. 
 
 /■'(•)«((/('. --Head round, wider thiin the thorax, fus<'ous, finely reticulat*'. thinly 
 clothed with erect black liairs: antenna-: scape and first joint of tlagelluin rufous; 
 eyes ovate, granulate; thorax elongate ovate, ferruginous, finely reticulated, 
 thinly clotheil with erect hairs, metathorax gi'adually rounde<l behind; legs pale 
 rufous, clothed with pale glittering hairs; abdomen ovate, dark ferrngimais on 
 the disc, sides I'uscons, apical margin of second segnu'Ut clothed with pale i)ld)es- 
 ceiice. the remaining .segments with a central row of .spots t(» the ai)i'X. Length 
 ■'{ nun. 
 
 Hal). — Mexico. Prof. F. Stiniiclira.st. 
 
 .Mill ilia peciiliariiii ('res.son. 
 
 Female. — Long, linear, slender, brown ferruginous; head slightly broader than 
 thorax, transversely sulxpKidrate ; cheeks and occijuit clothed with long, |iale, 
 vertex with black and mouth with long fuscous iniliescence ; flagellum, except 
 base, blackish ; thorax divided into two nearly e(|ual i)arts: the auti'rior jiortion 
 short, (pLidrate, covered with a dense, appre.s.sed. pale golden pubescenci': iioste- 
 rior i)ortiou of metathorax rather longer than tlie anterior, rapidly sloping be- 
 hind. si)arsely \)ubescent anil finely reticulated, substriate at ba.se above: legs 
 with long, s])arse, pale hair.s. anteriiu' tibia' and extreme tii)s of the two posterior 
 jiairs black, tibial .spurs white; abdomen elongate ovate, clothed with appres.scd 
 fascials imlu'.scence, the a))ical margin of first and second segments narrowly and 
 a sjiot on each side at aja'x of the first, silvery white; apex of abdomen long, 
 sparsi', erect, fuHCous hairs; apex of fli-st segment caiu|ianulate, petiole short and 
 slender. Length !) mm. (t'ressiui.) 
 
 Hal). — C'aliforuiii. 
 
 >'^'. 
 
 m 
 
 m 
 
 iif* 
 
 rmmm 
 
204 
 
 CHAULEH A. BLAKE. 
 
 Mutilla thoracica n. sp. 
 
 Female. — Head sulw^iiadrdtc, posterior angles rounded, coarsely and confluen*ly 
 punctured, castaneous, somewhat paler on the vertex, sparsely clothed with ve -y 
 short, black hairs; antennae: scape and two Imsal joints of the flaKclluni honey 
 yellow, the rest fuscous ; mandibles black at tip ; eyes large, ovate ; thorax elon- 
 Kate (luadrare, slijihtly narrowed at middle, prothorax ferruginous, densely punc- 
 tured, and separated from the mesothorax by a deep sulcus, metathorai abrui)tly 
 truncate, dark ferruginous and coarsely rugose; sides of mesothorax deeply ex- 
 cavate ; legs testaceous, thinly clothed with a glittering silvery pile ; abdomen 
 ovate, basal segment verj' large, subglobose, sessile with the second segment, 
 closely punctured, ferruginous, sparsely clothed with short, pale, yellowish pu- 
 bescence, second segment with a broad castaneous band, not extending to the 
 basal and apical margins, remaining segments castaneous, the apical margins 
 fringed with ])ale golden j)ubescence ; first, second and third ventral segments 
 ferruginous, shining, finely and remotely punctured, apicivl margins fringed as 
 above. Length 5-7 mm. 
 
 Hal). — New York. 
 
 Allied to M. peciUiari.'i Cresson, but may easily be distinguished 
 from that species by the thorax being destitute of the dense, appres.sed, 
 golden pubescence, and the silvery white apical margin of the basal 
 segment. 
 
 mutilla rutilan>« Blake. 
 
 Fenmle. — Entire insect bright castaneous ; head quadrate, wider than thorax, 
 posterior angles rounded, polished, covered with exceedingly minute punctures; 
 eyes small, ovate and finely reticulate; antennw somewhat pruinose; prothorax 
 smooth, prominent, meso- and metathorax minutely punctured, the latter ob- 
 liquely truncate, and having on each side a small tubercle ; legs slender, tibia? 
 armed with a row of minute spines ; abdomen polished, ovate, short ; apical mar- 
 gin of basal segment black, second segment with two subquadrate white spots on 
 the disc, fifth honey yellow, apex black. Length 7 mm. 
 
 Hal). — California. 
 
 This species differs from all othei-s known to me by the entire ab- 
 sence of pubescence. 
 
 Mutilla sapien^i Smith. 
 
 Male. — Black ; the head and thorax coarsely ' unctured ; the abdomen shining 
 and more finely punctured ; the head covere<' A'ith whit« pubescence; the meta- 
 thorax, the basal segment of the abdomen, and the apical margin of the second 
 segment with a fascia of silvery white pubescence, the basal segment forming a 
 short petiole ; wings hyaline, faintly clouded at their apical margins, the ner- 
 vures black; thetegulse large, testaceous at their tips; anterior wings with three 
 subnuirginal cells; the eyes emarginate. Length 7 mm. (Smith.) 
 
 Hab. — Mexico, Orizaba. 
 
 Mutilla ordlnaria Smith. 
 
 ^fnle. — Hca<l, thorax, legs and ba,sivl segment of the abdomen black, the other 
 segments ferruginous; wings fuscous and more or less hyaline at their ba.se; the 
 
NOUTII AMERICAN HYMENOITKKA. 
 
 205 
 
 onfluen^ly 
 with very 
 lum lioiicy 
 lorax elon- 
 isely puiic- 
 i al>rui>tly 
 ileeply ex- 
 ; abdomen 
 1 s?i?ment, 
 lowish ;iu- 
 liiig to the 
 U luarpins 
 1 seniHeiits 
 fringed as 
 
 the basal 
 
 lan thorax, 
 punctures; 
 prothorax 
 latter ob- 
 nder, til)iffi 
 ai)ical inar- 
 ite spots on 
 
 head and thorax strongly ])uuetured; the eyes emarginate; the face and the 
 inetathonix with thin white jiubescenee. the latter with large shallow punetures, 
 a little silvery pile at the basal margin of the metathorax and also behind the 
 wings, the latter with three submarginal cells; abdomen with fine, seattered 
 punctures, and the segments fringed with ferruginous pubescence. Length })-15 
 nun. (Smith. 1 
 
 Hal). — Mexico, Orizaba. 
 
 Mutilla terininata Smith. 
 
 Male. — Head, thorax, legs and the Imse and ajiex of the abdomen black, the 
 latter otherwise clothed with bright .scarlet pul)escence ; the eyes ovate ; the 
 head, thorax anteriorly, and the scutellum with pale fulvous pubescence ; wings 
 with two submarginal cells, dark fuscous at their apex, pale towards their iMise; 
 the abdomen more or less ferruginous beneath. Length 9 mm. (Smith.) 
 
 Hah. — Mexico, Orizaba. 
 
 llutilla nana Smith. 
 
 ^flth.—B]nv'k■, jmnctured, with the disc of the thorax and abdomen shining; 
 Vicad the width of the thorax, thinly covered with white pubescence ; the eyes 
 ovate; the scayie of the antennie and the mandibles obscurely ferruginous; the 
 metathorax with large shallow punctures; the anterior wings fu.scous, darkest 
 in the niai-ginal cell, with three submarginal cells; legs fu.sco-ferruginous; ab- 
 domen finely punctured ; the ajiical margins of the segments thinly fringed with 
 white jjubescence. Length 6..'j mm. (Smith.) 
 
 Hal). — Mexico, Orizaba. 
 
 DIVISION III. 
 
 Neuration as represented by ligtire 9, except that the third sub- 
 marginal cell is obsolete; first aMominal segment as in figure 10. 
 
 entire ab- 
 
 len shining 
 
 ; the meta- 
 
 the second 
 
 forming a 
 
 IS, the ner- 
 with three 
 
 {, the other 
 r base ; the 
 
 :S^9 
 
 Fig. P. 
 
 Fig. 10. 
 
 ^ntllla copano Blake. 
 
 Male. — Head and thorax black, coarsely reticulate ; heail sub(]uadrate, not (|uite 
 as wide as the thorax, thinly clothed with short silvery hairs; antenna' bla<k, 
 scape punctured, mandibles ferruginous before the tii)s ; eyes ovate, enuuginate ; 
 thorax robust, narrowed behind, anterior angles of prothorax ))roduced into acute 
 teeth, posterior nuirgin (sarinate, sides of mesotliorax dilated, clothed witii silvery 
 pubescence, metathorax roundly truncate; wings pale fuliginous, hyaline at 
 base; marginal cell sublanceolate, obliquely truncate at tip, first and second sub- 
 marginal cells about equal, the second subtriangnlar, receiving the recurrent 
 nervure beyond the middle, third obsolete; second di.scoidal cell large; tegulre 
 large, ovate, closely punctured, posteriorly ferruginous ; legs black, thinly clothed 
 
 V:i 
 
2()fi 
 
 ('HAI{I,1> A. HLAKK 
 
 with white hairs, cah'ariii white ; alxliiincn ovate, ferriifiiiiims, l)a.sal sejiiiient 
 small, )niiictiire(l, with a veiilnil carina teriiiinatiii}; in an acute tootl) anteriorly; 
 second scffnient finely and closely |tiinctured, apical margin clothe<l with silvery 
 imhesceiice ; the reniainiiiji se;:nients f'rin<;ed with a thin jioldeii i)nl)eRcence, 
 ventral surface same as above, lateral carinii- distinct. Lenffth H't mm.; exjianse 
 ot wiiiKs 11 mm. 
 
 Hill). — Te.xiis. Bclf'rae:e. 
 
 .MutillH >tuteoIa HIake. 
 
 /■VH/ff/c— Fer-UKinoiis; hea<l round, wider than the thora.x, closely and ev<'nly 
 punctured; eye^ round, larjre : cheeks clothed with white sericeous puhescence : 
 antennie t'uscous ; thorax elonirate ovate, narrowed to apex, closely and regularly 
 punctured, si<les sli-;htly .sericeous; lefts fuscous, thinly clothed with scattered 
 white hairs: abdomen ovate, ba.sal sef;nu'nt clotlie(l with sericeous white iiuhes- 
 et'iice, second closely and rej;ularly i)unctured, its ai)ical margin friiificd at sides 
 with silvery puhescence, fuscous at middle, third se^rnient fuscous, apex i)aler. 
 Len;;th 5 mm. 
 
 II:i!). — Tcxiis. Tlii-t'c sjK'ciim'ii.s. 
 
 Allied li) /ii/i/nwi Bliikc, tVom which it dirti'f.s by the iiiirrow thoi'ax, 
 
 iiiid ill iH'injr (U'stitiitc of" the loiiir haii> of the abdomen. 
 
 .>I 111 ilia parviila n. sji. 
 
 Ffiiiiilc. — FerrUf;inoiis ; head rounded, closely iiunctured ; antenuie, scape and 
 rirst .joint of fla.i;ellum bright ferrujrinous. remainder fuscous; eyes ovate, tips 
 of mandibles black : thorax ovate, narrowed posteriorly, closely iiuiu'tured, meta- 
 thorax al)ruptly truncate, thinly clothed with erect, glitterinj; white hairs: legs 
 fusco-ferruginous. thinly <'lothed with white pubescence: al)donien ovate, ba.sal 
 segment apically broad and sessile with the second segnu'iit, which is finely punc- 
 tured, its ai)ical margin and remaining segments, which are fuscous, thinl.v 
 fringed with jjale pubescence: ventral surface jialerthan above. Length 1.5 mm. 
 
 Hid). — Alabama. 
 
 Thi.< species cori-esponds so nearly with M. jiiitcu/d in appeafaiice, 
 that it can oidy i)e separated by the form of the l)ii.<al seirmeiit of 
 the abdomen beino; .sessile with the second, whereas in the latter it is 
 cylindrical. 
 
 (ienus :;, NPII.KROFIITHALMA Blake. 
 
 Ma/c. — Hciid transversely rounded, or sid)4uadrate, with the po.s- 
 terior ano;les round, nirely its wide Jis the thorax, wliich is genenilly 
 ovate ; eyes round, prominent and polished ; the wiiiirs vary from 
 dark fidijrinous to fusco-hyaline, the latter more or less clouded ; 
 abdomen ovate, subpetiolate. 
 
 Fcmdh'. — The form of the head dittei>i widely ; in some species it 
 is rounded, or subtpiiidrate ; sometimes enormously developed, beino 
 twice the width of ihe thorax, and armed with strong spines beneath 
 
NORTH AMKIilCAN HYMKNOI'TKHA. 
 
 201 
 
 the clu't'k.-* ; evi's as in the iiiak' ; thorax ovate, rohiuit ; the interme- 
 diate and j>osterior tibisc are exteriorly armed with spines ; abdomen 
 ovate, havinjj the basal sefrment small, campannlate and subsessile 
 with the second setrment. 
 
 The speeies of this jrt'nns are more densely pnbescent than any in 
 tlie Mutillidie, often beinji richly a<lorne(l with golden or silvery 
 pidu'scence and beantiful coloring and markings. 
 
 The species are (piite nnmcrous, and may be divided into two divi- 
 sions and subdivisions, viz. : 
 
 
 DIVISION I. 
 
 Fitvt abdominal segment small, more or less nodose and constricted 
 at ai)ex. a.< in figures 1 1 and \2. 
 
 lS. 
 
 \ 
 
 ( 
 
 L 
 
 Fiji. 11. Fifi. 12. 
 
 This mav be atzain divided into two subdivisions: 
 
 Subdivision I. 
 
 Head broad and (puidrate behind the eyes, mandibles broad ; neu- 
 lation of anterior wing ai> represented by figure 13. 
 
 Fill. i:!. 
 
 KpliHTophtlialnia Nca>va Hlaki'. 
 
 yiiile. — Black ; head nuindcd, as wiile as tlu> tliurax. closely iiuiu'turcd, space 
 ahovo and betweoii the eyes niro-i'errufjinoiis, with .short ere(!t liiiirs; aiitennii' 
 l)lack. the swiiic finely i)iiiictured ; eyes round, prominent; thorax sulxinadrate. 
 narrowed posteriorly, niesothorax elevated, nietathorax ahrnptly roiiniled. 
 coai-sely reticulated ; wiuKs ample, I'uliKinous, niar>;inal cell elongate ovate, 
 slifihtly rounded at tip; two distinct suhnuir^inal cells, first moderately lonj; 
 and narrow, second about half a.s larfje as the marginal, receiving the first re- 
 current nervure a little before the middle; legs black, clothed with scattered 
 black hairs, posterior tibia- armed with a single spur ; abdomen ovate, biusal 
 segment elongate, closely puuctmed, thinly clothed with black haii-s; second 
 segment pale ferruginous, with scjittered hairs of the same color, shining, finely 
 
 ■ i 
 
208 
 
 cHAHLra A. blakf:. 
 
 punctured, latonil cariiw edfjed intonmlly with Muck ; the riMUuining scKnients 
 clothed with dense, coai-se, black iiulKsscencc. Ix-nnth 11 mm.; exixinse of win^s 
 21 mm. 
 
 Huh. — Texus. 
 
 In some 8{)eciinens the disc of the jxitiole is darlc rufous. 
 
 ^iphierophthalina penii«*ylvanica St. Farg. 
 
 Male. — Head and thoni.v reddi.sh, clothed with black hairs; antennte black; 
 abdomen black, clothed with black hairs; first scKment nlobase, fcrruKinous, its 
 apical margin black ; the second segment ferruginous, its apical margin black, 
 nearly naked ; legs black, clothed with black iiairs ; wings blackish violet, first 
 submarginal cell with a transverse, transparent line, descending in an angle from 
 the costa, after which it traverses the si'cond submarginal, aiul joining a rather 
 large transparent spot, common to the third submargiiuil and third di.scoidal 
 cell.s, this last cell strongly narrowed towanla the marginal. Length 18 mm. ; 
 e.xpan.se of wings 29 mm. (St. Farg.) 
 Hah. — Pennsylvania. 
 
 SphHTophthalnia auriplllN Blake. 
 
 Male. — Dark ferruginous, head quadrate, posterior angles rounded, closely and 
 finely punctured, thinly clothed with scattered black haii-s; scape of antenna* 
 dark rufous, fiagelluni rufo-piceous ; mandibles ferruginous, tipped with black ; 
 eyes prominent, round, polished; thorax elongate, narrowed behind, clo,sely re- 
 ticulated, very thinly clothed with dark hairs, posterior nutrgin of prothorax 
 carinate ; mesothonix elevated, having four shallow, longitudinal grooves on the 
 disc; metathonix gradually rounded, having a distinct suture in front; wings 
 moderate, fuliginous, nuirginal cell lanceolate, first submarginal small, narrow, 
 second large, subtiuadrate, receiving the first recurrent nervure before the mid- 
 dle, third obsolete, not extending as far as the marginal, a hyaline streak pa.ssing 
 from the costa through the first and second submarginal cells, terminating in a 
 patch of the same, below the third ; legs black, clothed with jMile glittering hairs; 
 abdomen elongate ovate, basal segment dark ferruginous, with the apical margin 
 black, dasely reticulated, clothed with scattered pale hairs ; second segment 
 dusky fulvous, finely punctured, clothed with erect fulvous hairs; apical margin 
 blackish ; the remaining segments blackish, very finely reticulated, clothed with 
 golden fulvous pubescence; lateral carinic di.stinct. Length 14 mm.; expanse 
 of wings 25.."> mm. 
 
 Hah. — Texas. 
 
 !>ipliterophthalina Eflwardsii Cresson. 
 
 Male. — Elongate, slender, uniformly rufo-fnlvous, densely and rather coiirsely 
 punctured, more feebly on the alxlomen. clothed with short, erect, tolerably 
 dense, golden fulvous pubescence ; tijis of mandibles and third and following 
 joints of antennnj black ; metathonix coarsely reticulated ; wings blackish fus- 
 cous, with a hyaline spot beneath thinl submarginal cell ; abdomen shining. 
 Length 13 mm. ^Cresson.) 
 
 Hah. — Oregon. 
 
 In one specimen the head, sides of thorax and first and second 
 
 ahdominal segments are nigro-castaneous. 
 
Il 
 
 NOIJTH AMKKKAN II YM KNOl'TKHA. 
 
 •JO!) 
 
 This li:iii(ls()iii»' species is allied to iiiirijtl/l.< Hliike, tVoiii wliicli it 
 
 (lirtt'i's l)y tilt' less eoiirse |)iiiietiiiitii)ii, and l)v the more dense, iinitonn 
 
 Lfolden pnhesceiice. 
 
 StHHIVISION II. 
 
 Head suhtnuisverse or sul)(|iiadrate, not reniarkal 'v enlariri'd 
 
 behind tlu' eyes, neiiratioii L^'iierally as repre.stM»ted by titrure 14. 
 
 Fiti. 14. 
 
 K|»liH>ro|>tilhaliiia orviiii Cre-Mon. 
 
 Mull'. — Klonniitc : colori'il siiiiil ir'to tlic fi'inalf. l)iit iniicli li'ss coarsely piilir- 
 uu'i'd. and tlu' antciniH' iiiiR'h loiijicr; tlie iiictatliDi-i^x is larnf and rounded be- 
 hind, (ovcrcd with dense, rather coarse punctures, and clothed rather sparsely 
 with lonK. hlack pul)escence ; wind's aniitle. l)laekisli. i)aler at tips; niaruinal cell 
 siiort, not exceedinf; the tij) of t t>e third suhmarKinal cell, the apex l)roa<lly 
 truncate; the three suhinarfiinal cells distinctly defined, the first loiiner and the 
 second as lonn as the marginal ai 'i receiviiiK the first recurrent nervure before 
 the middle : the third submarfjinil cell subtrianmilar. much narrowed beneath, 
 so that the side nervnres become almost confiuent with the second recurrent 
 nervure; legs black, punctured, clothed with black pubescence; abdomen ovate, 
 ^rradually na\rowed to tip. closely and rather finely punctured : apical margin of 
 the large basal segment and all the remaining segments, as well as the lateral 
 apical fringe of the ventral segments, densely clothed with long rnfo-ferruginous 
 l)ubescence, the remainder with black jjubeseence, sjjarse on the venter, which is 
 shilling; the node rather larger than in the female, coarsely punctured, with a 
 large, flattened, subacute tooih bi-neath ; second ventral .segment .somewhat con- 
 cave on the middle, on which there is a deep ovate puncture. Length :{."> mm. ; 
 expanse of wings IJ(> mm. 
 
 F('H/((/<>.— Deep black, with coarse black imbescenee and large, deep punctures; 
 head not wider than the thorax ; eyes small, round, entire, very convex and 
 polished ; antenna' piceous black at base, the flagellnm brownish and sericeous; 
 thorax slightly narrowed behind and abruptly truncate; the excavations on the 
 sides, for the receiition of the legs, are smooth and shining, the posterior trunca- 
 tion less coarsely jmnctured and somewhat shining; legs black, with long, black 
 pubescence; the tibise with short, black spines; abdomen large, ovate, coarsely 
 punctured, black ; most of the large basiil segment and all the remaining seg- 
 ments above clothed with a long, dense, rufo-ferruginous pubescence; the node 
 and the ba.se and sides of the large basal segment, as well as the venter, clothed 
 with black pubescence ; the large ventral segment is sparsely pubescent and 
 shining ; in one specimen the lateral a|>ical fringe of the ventral .segments is 
 reddish ; the node or small ba.siil segment is rather small, circular at the tip, nar- 
 rowed towards the base and depressed above, with a short, stout tubercle on each 
 side at extreme ba.se. Length 19-20 mm. (Cressou.) 
 
 Hab. — Texas, 
 
 Easily recognized by the large size, the jet-black color, with nicwr 
 of the abdomen above ruf'o-ferrugiiiou.s. 
 
 TRAN8. AMER. ENT. HOC. XIII. U^) AUGUST. 188«>. 
 
 hin 
 
 ..I 
 
 m 
 
210 
 
 (•IIAKL1> A. HI.AKi;. 
 
 NphirroplitlinliiiH KorKoii Mlaki . 
 
 Ffiiiiilf, — Hliick : luad wider tliiiii tin- tlionix, siil>(|Uii(lratc. puNtfrior aii^lis 
 riiiindcd, thinly clothed with Idaek piil)escen('e, elosely pmictiired, cheeks pnniii- 
 iieiit : eyes riniiid. polished, M'ape of aiitciiiiii' |iiilicliired ; clothed with coarse, 
 hla<'k |)uliesceiicc. iiiaiidihies with a tootli hetore the tiji; thorax short, ovate, 
 closely covered with contliieiit |>imctiires. clothed with l)lack imhescence, iiieta- 
 thorax aliriiptly truncate : letfs lilack, clothed with hiack hairs, tinely piinctnred, 
 the intermediate and ])osterior tihia' armed with sjiincs; ahdonuMi ovate, hasal 
 segment closely pnnctiired, dorsjil surface, exce)>t anterior margin of second seji- 
 Mient, clothed with dense, coarse, dark ferrniriinms puhi'scence : under snrface 
 coarsely punctured, ventral sejiments fringed with hlack puhescence. Lenjith 
 17 mm. 
 
 Hal). —Texas. HcHVajre. 
 
 'I'l)i.s species re.sciiiltles S. orciis ('res.<uii, l)iit may he reudilv distiii- 
 "•iiislied l»y the hirL'i siihiniadrate head, the siiorter tliorax.aiid iiKiii- 
 dihles heiiitr toothed Ix'tore the tip. 
 
 N|>liH>ro|ilifliHliiiH tiMiplioiie HIake. 
 
 /•V»i((/c. -Nifiro-castancous ; head rounded, a little wider than thorax, coarsely 
 )iumtured, face very liroad, the puni'turcs lieconiinK finer about the in-irlion of 
 antennii'; eyes small, round ; antenna- sli>;lifly ])riiinose, scaju' tinely iiuiiclureil : 
 thorax short, narrowed po.steriorly, coarsely, continently punctured; jn-otliorax 
 t'rin'icd with short, eri'ct hairs: metathorax abruptly truncate, deejily reti<Milate. 
 bearinji a few erect hairs, tlanks moderately excavate and smooth; let;s tinely 
 punctured, the int<'rniedi!ite and ])osterior tibia- armed externally with spini-s. 
 mixed with fuscous hairs: abdomen elonjtat*- ovate: narrowed to apex, second 
 sejrment coarsely ])uncturcd, its apical mar<riii and remaining; segments fringed 
 with Kohlcn pubes(-ence : under side as above, except that the marginal fringes 
 are castaneons Leiiiith 17 mm. 
 
 Hub. — Texas. 
 
 KphirrophthalinH pnrinoNH n. sp. 
 
 /•Vhki/c— IJIack ; head (juadrate. posterior aufrles rounded, slightly wider than 
 the thorax, clothed above with obscure rusty jrohlen |)ubescen<'e, (-heeks beneath 
 the eyes coarsely i)unctured ; mandibles and scape of atitenna- black, flagelhim 
 i!iKro-castan(!ous; thorax short, subtriangular, suddenly narrowed posteriorly: 
 pro- and mesothorox above, clothed with ru.sty jfol'lt'" pubescence; metathorax 
 obli(iiu'ly truncate, coarsely reticulate, sides and beneath closely punc-tured ; h'tia 
 black, thinly clothed with black hairs; femora tinely punctured, the inti-rme- 
 diate and posterior tibipe armed with strong spines; abdomen elongate ovate, 
 ba.sal segment small, coarsely i>unctured, and bearing a few erect black hairs; 
 .sec(nid segment coarsely punctured, its apical two-thirds and remaining .segments 
 clothed with rusty golden [tubcseence ; ventral surface tinely punctured, ai)ical 
 margins fringed as above. Length 17 mm. 
 
 Hah. — Calitoriiia. 
 
 Nphtrrophtlialma veniflea n. sp. 
 
 i''em/i7e.— C'a.staneous ; head rounded, as wide as the thorax, densely punctured, 
 sparsely clothed with pale golden puhe.s<-ence, mandibles bla(-k at tips ; antenna- 
 
NoltTll AMKUICAN II YM KNOI'IKHA. 
 
 'ill 
 
 t'liscDiis; t'yt'S rouiid, ixilislu'd ; tliorax ovatt', soiiu'what con.stricitcd Ix-liind thr 
 middle, coarsfly rfticiilatcil and tliiiily cldtlii'd with pale golden piilx'sct'iicf ; 
 int'tathiirax niiiiidly Iniiicatc : Wn>< caslaiicoiis, tiiicly puiictiirt'd, thinly cluthcd 
 with t'ii!i<-<Mm haiix, iiiti'i'mcdiato and jioHteriur tiliia' armed with strong Hpines'. 
 alxlonieu elongate ovate, hasal sc^finent eaini)anulat<', clotlied with erect hiaek 
 hairs, second .se>;nicnt coar.sely and conliuently punctured, thinly clothed with 
 pale >{olden puhescence, that on the apical segments longer and den.ser, ventral 
 surface coarsely an<l remotely punctured. shinin>f. Length l'^ mm. 
 
 Hill). — Calit'oriiiii, 
 
 /Jlicd to S. pdnitosii, l)iit (liHtT.s in liaviiio tlic pnhesft'iicc piilc 
 L'^dldt'ii, and is iinitoriiily ciistaiKMdi."', wlu'iva.-* jntnnoKa is t'litiivlv 
 black. 
 
 M|>htero|»litlialiiia z<>laya HIake. 
 
 .V'(/c. — Blufk ; hea<l rounded, a.s wi^le as the thorax, tinely punctured, thinly 
 clothed with erect hiack puhescence; eyes round, polished; antenme Idack : 
 ilionix ovate, ch»sely punctured, clothed with erect black hairs, metathorax 
 ininidly truncate, closely reticulate; teuula- small, polished; winjis fuscous, mar- 
 ginal i-cll ol)li(|uely suli(|Uadrate, truncate at tip, first suhmarKinal larne, second 
 suhtriaimular, wi(h' beneath, its hasal and apical nervurcs .sinuate. receivin>; the 
 tirst rei-urreiit near the base, third sub|.entaj;onal, nnrrowed beneath ; le^'s black, 
 thinly clothed with black hairs; abdomen elonnate ovate, j)etiolate, petiole pyri- 
 lorm. closely punctured, having; a small ventral tubercle, second sejtnienf shining, 
 closely pmii'tnred, thinly clothed with erect black hairs, the ai>ical nuirKin and 
 followinu se>;meiits clothed with lonK coars*^ oranKC-yt^Uow pubescence; un<ler 
 side shiuiuK, black. Leufith ^.'i mm.: expanse of wiufrs l."> mm. 
 
 Ilai). — Texas. 
 
 .Sphiprophtlialiiia coiiiaurlu' Hlak( . 
 
 .)/((/?.— Black ; head not a.s wide as the thorax, rounded, clothed with loiip, 
 coarse, dark ferruginous jtuhescence, scape of antcnuie black, thiKcllum fuligi- 
 nous, mandibles black; eyes round, prominent; thorax elongate (juadrate, pro- 
 and me.sothorax thinly clothed with black hairs; wings ample, fuliginous, mar 
 final cell short, abruptly truncate at tip, three di.stinct submarginal cells, the firsi 
 a little liiTiger than the marginal, the second subtriangular, having a subhyaline 
 streak through its entire length, and receiving the first recurrent nervure oiu'- 
 tliird before the middle ; the third extending beyond the marginal ; teguhe large ; 
 legs black, clothed with black hairs, calcaria black, long, serrateil interiorly: 
 abilomen ovate, ba.sal segment closely punctuied, clothed with coarse black hairs, 
 second segment finely punctured, shining, thinly clothed with black hairs; apical 
 margin and following segments thickly clothed with long, dark ferruginous jiu- 
 hes<-ence : margins of the second and third ventral segments fringed as above, 
 lateral carina- distinct. Length lit mm. ; expan.se of wings ;{s mm. 
 
 Feiiiiile. — Hlack ; head sulximidrate, posterior angles rounded, not as wide a- 
 tlie thorax, reticulat<'d, clothed with brown-black pubescence; .scape of antenna' 
 black, rugulosf. flagellum dark fuscous: eyes round, prominent; cheeks below 
 the eyes closely punctured ; thora.x short, narrowed hohiiid, coarsely reticulutcd. 
 clothed the siimo as the head, the niesothorax has on each .side a strong carina. 
 
2 VI 
 
 CHAKI.KS A. IM-AKK. 
 
 whirl) ti riniiiatcs lit the top in a siiiiill iilitiisc tiMitli; iiu-tatluinix alirii|>tly triiii- 
 catc, till' siiii's cloHcly n'tictilatcil. and Ix'urin^ a sliininK hiai'k tuh«>rrl*- on t-arli 
 Hide; it'us rolxist, l)lacl\, ciotlicd witli Imij; black hairs; alMlonion ovate, batwil 
 s(-);ni('nt courHt'ly rt'ticiilati'd, ciotlicd witli loii>; M-attcn-tl black liaint; Hccond 
 sc^nK'iit closely punctured, biiHal and apical ntarKins clotheil w-ith black, disc 
 with pale brown piibcHccncc; thinl s«'>;incnt clothc<l with brownish black, the 
 icnuiiiiiiitr scKiiiciits with fcrrufjinous; under side of s<-coih1 settnicnt closely 
 ininctiireil. lateral carin:e distinct; margins of ventnil segments friuKed with 
 dark brown pubescence. licngth 21 nun. 
 
 Hal). — Texas. 
 
 NpliH'roplitlinliiin toxuiin lilake. 
 
 /•Vhik/c — Head and thorax coarsely, eonfliiently punctunHl, ni»cro-fuscou8, 
 thinly clothed with short erect hairs, the former siilM|uadnite. jNtsterior nuKloR 
 rounded, as wide as the thorax ; cheeks thinly ••lothe<l with Klitt4-rint! hairs; an- 
 tennie fuscous, Ni'a|ie imiictured, flaKelluni slifihtly |iruinose : eyes round, |)ronii- 
 iieiit, jioiished ; thorax ovate, narrowed posteriorly, nietathorax roundly truncat*- ; 
 le^s black, clothed with scattered white hairs; femora and tibia- tinely punctured, 
 intermediate and po.sterior fibiie armed with spines; alMlomen ovate, narrowed 
 to apex, basal sefimeiii fu.scou.s, clo.sely iiuiu'tured, ,s«'cond s«'>rment clothed with 
 ob.scure fulvous pubescence, its ajiical margin ciliated with yellow, third and 
 fourth se;,'iiients iii^ini-fuscous, clothed with black hairs, apex silvery. Length 
 id nun. 
 
 Hiih. — Texas. Two s|)(>('inien.«<. 
 AlliiMl to cotiunirlif Hhike. 
 
 N|»liit>roplitliHliiiit olof lio Hlake. 
 
 Fcmitlf. — Hlaek ; head sutxiuadratc, posterior angles rounded, not as wide as the 
 thorax, densely rutcose, clothed with black puln'scence. cheeks lielow the eyt-s 
 closely and irregularly jiunctured; eyes round, prominent: scsijh- of aiiitnnie 
 punctured, lilack, flagellum luceous ; thorax roltu.st. ovate, narrowed posteriorly, 
 densely clothed above with black iiubescence. sides cl(js«'ly j>unctur»'d, mesothorax 
 armed posteriorly with a small tubercle on each side, nietathorax al>ruptly trun- 
 cate, closely punctured; legs black, ciotlicd with black hairs, intermediate and 
 IKistcrior tibia' armed with long spines; abdomen ovate, ba-sal segment closely 
 piinctun (1. clothed with long erect black hairs, second segment having a broad 
 band of rcildish golden luibescence. emarginate anteriorly and posteriorly, divided 
 by a narrow central longitudinal line of black. bas«- and apical margin black, 
 third and fourth black, apical segment clothed with re<Mi-h golden pubescence; 
 under side black, closely punctured, sparsely clothed wi'ii black hairs, margins 
 of all the segments fringed with long black pubescence, i.,eugth '21 mm. 
 
 Hah. — Texas. One siiecinieii. 
 
 This tine s])et'ies is allied to eommiche. It ditters from the hitter 
 in having the head less rounded, and the thorax somewhat longer, 
 the elothing is tilso less coarse than in comnnche. It al^o reseinhles 
 occideniiiUs in the ornamentation of the nhdomeii, but the head and 
 thonix iire entirely black. 
 
NoinU AMKItlCAN HYMKNOITKKA. 
 
 21.'{ 
 
 m 
 
 M|>lin'ro|»litlinlnin cratu Hlake. 
 
 /•'(/((((/»'. Hul'o-casiuiit'iius ; lu'iul roiiiiil. not as wiilc us tlmnix, clotln'd witli 
 (U'liHf vcllowiNli wliitf piil><'s<-«'iic«' ; cyt-s liir>{t\ niiiiid, |iri>iiii)ii-iit, imiIImIu'iI ; iiii- 
 tfiiiiii' fiiHcoim, Hcu|K' thinly cIoUumI with whitisli huint, tips nf nian<lil>lc.s bhu'k : 
 thnnix sliort, ovate, coarst'ly imni'tiiri'd, nictatliorax a)>rii)itly truncate, thinly 
 clothed with white liairs; U-^s sparsely elotlu'd with lonjj ulittirin); while hairs, 
 iVniora punctured ; abdomen eloiiKiite ovate, coarsely and deeply punctured, 
 tliiiily clothed with erect ^tlitterinj; white hairs, apical niarKiuH of first and second 
 >euiiicnts densely fringed with white pubescence; under side same as above. 
 Length H-l'i mm. 
 
 Hill), — Toxa.-'. Tw(t sj)eciiiicn.'». 
 
 Mpliiproplitlinliiia NacktMiil f'resson. 
 
 /•V'm((/('. — Deep black, with lar>;e, coars<' jmiictiires ; head not wider than the 
 thorax, clothed above th<' antenme witli lontf. dense, erect, whitisli pubesceni-e. 
 rest of the head with deep black pubescence; eyes small, round, entire and con 
 vex ; antenna' bhu'k, the llaKellum sericeous; thonix ovate, abrupt on the side.-^ 
 :iiiil liehiiid, the upin'r surface dens«'ly clothed with very lon>!> erect, somewhat 
 riidiatinn. whitish imbescence ; the black upjK'r surface of the thonix is concealed 
 liy a short, den.se, apiires.sed, whitish jmbescence ; sides of the thorax and beneath 
 iliithed with deep black pulH-sceiice, which is exceedingly long and fringe-like 
 on tlie ridg<! between the two latenil excavaticuis and imn\ediately opposite the 
 iiitermctliate legs ; legs deej) black, with long black pubescence, very long on the 
 femora; abdomen ovate, the dorsal surface, except the extreme hose, clothed liki- 
 the thorax, with a very long, somewhat radiating whitish pubescence, which ex- 
 tends beneath on the lateral a])ical margins of the segments; the node, or small 
 basal si'gnient, is rather small, deeply rugose atul clothed with long black pubos- 
 ceiu-e. Length liJ-14 mm. (C"re.s.son.) 
 
 J/<(/('. — Black ; head and thorax densely clothed with long whitish pubescence 
 mandibles and antenme bla<'k ; eyes large, round and pr<)minent; sides of thorax 
 densely and coarsely punctured, and clothed with black pubescence ; legs black, 
 clothed with long black imbesct>nci' ; wings fuliginous, three submarginal cells, 
 marginal cell sliort, ovate, truncate at tip; first submarginal large, second sul)- 
 triaugiilar, narrowed at the marginal cell, its transverse nervures sinuate, receiv- 
 ing the first recurrent nervure near the base, third submarginal subpeutagonal. 
 much narrowed beneath, the second recurrent nervure reaching the cubital a 
 little outside the cell; abdomen ovate, biLsal segment campanulate, densely 
 clothed with long, coarse, black pubescence ; .second segment densely and finely 
 punctured, clotheil with long black pubescence ; apical segments with long, coarse, 
 whitish jiubescence ; ventral surface coarsely punctured, clothed with black pu 
 bescence. Length 12 mm. ; e.xpansi' of wings 22 mm. (Blake.) 
 
 IIiil). — C'alit'oniia. 
 
 This iviiiai'kahle si)efie.< may be at once recognized by the deep 
 hlaek eolor and the exceedingly h»ng, eivct, whitish piihesceiice 
 which clothes the nijjier :*urface of the head, thoi-ax and tdxlonien. 
 giving it a hnisli-like appearance. The sniaMest .specimen has the 
 whitish pubescence much shorter than the htrger ones, as if the verv 
 long pubescence had been cropped oif. 
 
 I 
 
 
'214 
 
 «HAKLF> A. Ur.AKK 
 
 NphterophtliHliiia thetiM n. »|>. 
 
 Fi'iiKilf. — F<Triij;iii<iii!«. »liitlie«l eiitin-iy alxjve willi long, cdiirsi', wliitisli pnix's- 
 cciice ; lit'Hd traiisvcrs*'. ntuudetl h«-hin<l the ey«'s, slijilitly wider than tlio t i 'iiix ; 
 iinteniiK' fiisoous. scajK- clothe*! with whiti.sh piilH-scfiici- ; eyes proiniiii'iit, round ; 
 th )rax short, iiietathonix almiptly t minute, cortrsely punctured, deeply e;;, .i,,-atc 
 at sides; Ic^h pale fcrru>jin<>us, thinly cl<»the»l with whitish hail's, s])ines and cal- 
 caria castaiieous; hasal s<-frnient of aUlonien caiiipaniilate, second closely punc- 
 tured, beneath eastaneous : apical margins of all the ventral setjments frin}ie<l 
 with white pul)cscence. Ix-u$!th T mm. 
 
 Hill). — Arizona. 
 
 This species is allied to Stiekenn Crejism, hut may readily l)e dis- 
 tiiiofiiislied by the tegument l>eio(; forni^iiiniis, whereas the foriuer is 
 lilack, and also hy its smaller size. 
 
 NplitcrophtliHlma ««lio Blai:>-. 
 
 Ffiiuilf. -Black : head round. ii<>l -.i.- wide as thonix. clothed on vertex with 
 coarse ocliraceous p.il)es<-<'nce : eye* r>>und. prominent; antenna- hhick ; thorax 
 rohust, ovate, narrowed |M»steriorly. clothed on disc with coai-se o<'hraceous pu- 
 liescencc, nietathorax ahruptly trun<-»te. reticulate, flanks inipunctate: legs 
 lilack, having a few si-att<'n'<!. long l>!aek hairs, internii'diate and iiosterior tibia' 
 armed with spines, calcaria long; atxUimen ovate, ba.sal half of second segmeni 
 black, with coarse black i>ulK-'«ceni-«-. ai>i'ul half and sides of third, fourth and 
 tiftli segments clothed witli ci<irx- rx-hr.icions pubescence, third and fourth, at 
 middle, ami apex lilack. lyciigth !•.-■> mm. H. Kdwards,) 
 
 Hal). — N'aiicoiivers Island. 
 
 NpliH'roplitliuliiin uiMsna ('n-^«^>n. 
 
 y-'c//i((/(' - Deep black, inars^-ly punctured: head not wider than the thorax, 
 densely clothed with a long, oelira<-«-ou.s-yellow pubescence, rather thin on the 
 checks; eyes small, rounil. entire, eniivi-.x ; anti-nna- black, the scape with ochra- 
 ceous-yellow pubescencr. the tlagellum ^riceous: thorax ovate, abrupt on tlii' 
 sides and behind, the iipi«^-r ^urfa(•e. except of the inetathorax, clothed with long, 
 dense, coarse. ochraceou^-yell^lW puln-.-,<-encc. which al.so fringes the ri<lge, be- 
 tween the two lateral I'Xcavation.-: inetathorax above clothed with long, dense, 
 black pubescence; legs black : the coxif henetith, the femora and base of tibia- 
 and the tarsi with bla<'k pul>escene«- : abdomen larg(\ ovate, clothed with a long, 
 dense, c<iarse, ochraceou>-yelliiw pu5i«-x;ence ; the node and the extreme base of 
 the large liasal segmei;! clothe<l with black pnlK'seence ; on the venter the pubes- 
 i-eiicc is not so dense, {.^ength 'Si^t mm. ifresson.i 
 Hid). — ('ii|ie St. Lucas. I>i\v«r Calit'oriiia. 
 
 MpliioroplilBkHliiiH liololrirlia Sau>s. 
 
 Femnlv. — Head transverse, niuiideti. a." wifle as thonix, densely clothed with 
 ocliraceous |iubes<'eni'e ; antenna' fH.s«-ous: eyes round. |irominent ; thoitix elon- 
 gate ovate, narrowed |M(steriorly : pn>- and mesothorax ilenscly clothed with 
 tichraceotis pnl)es<'ence ; iaetatlioni.\ nifoii.s. ehwelT punctured; legs fu.scous ; 
 abdomen oviitc. ba.sal segment <:-ani|>anulate. rufous, coarsely |iunctured ; second 
 segnn^it denstdy clothed with iN-hraeitius pnlM's<'ence, apical margins of segments 
 fuscous, tVingetl with black hair. XA-nfXh 14 mm. 
 Hal). — Mexico. 
 
NORTH AMKKICAN II VM KM H'TKKA. 
 
 21.') 
 
 Kpliii'i'oplitlialina tiiircola ( rssom. 
 
 Fiiiiiili'. -Wiwk. I'diirscly |>miitunil : head liiruc (|ii:iilratt'. wider than tlu' 
 tlmrax, rl()tlii'<l almvc the aiitcmiif willi a ilciisc. (Icf|i j;ol<ltii ycllnw inilicscenci' ; 
 oil tlic rest of tlu' lu'iiil tli<' piilx'sccucc is lilacic : cyt's siiiall. niiinii, fiitii'c. convex 
 ;;ii(l iMilislied ; niandil)les l)la(k, also indislied ; antenna' jtieeoiis hrowii. tlie scjuie 
 with l)htek iniheseeiiee. the tla^telhini tinycd with riitoiis, sericeous: liiorax very 
 >hoit and hroad. soniewliat stran;;nhiled hehiiid tiie middle, alirnpt on the sides 
 and heliiiid. tiie miper snrt'a<'e (h'lisely clotlied willi a ch'ci) ;;oi(UMi yellow )iuhes- 
 leiice: iiietatiiorax iihniptiy tnineate hehiiid. and. as well as tlie sides of the 
 ihoiax. spai'sely clothed with Idaek |iiihescence ; ie^s hhick. witi; loil^:. scattered, 
 lilack iiiiiiescelice : altihiiiien ovate, deiistdy clothed, except hase, with lon^, ap- 
 pres,sed, deep golden yellow jiiiiiescence ; the node, the hase of tlie larKi' Imsal 
 sefriiieiit ahove, and the whole of this setrnient lieneath, excejit its apical niai'};in. 
 clothed with hlack jnihescence : ahove, the lilack on the lai'ue hasiil se;;nient 
 slijxhtl.v indents the yellow on the hasiil middle ; the node is small, circular at 
 tijiaiid tlaltened ahove at hase: all the ventral sejinieiits have an apical fringe 
 of dense golden yellow jiiiliescence. Length 14 mm. ;('ress(in., 
 
 Hill). — (alifiiriiiii. 
 
 Allicil to cdh'foniic'i Kiidds/.kdwski, l)iit dirti'i's liy the \:\r<s(' i|im(l- 
 nitc liciid !iml the sliortcr tlioi-ax. 
 
 m 
 
 Kpliii'roplitliHliiia iiioIliNNiina 
 
 •*!'• 
 
 Miilr 
 
 •Rohiist: hlack, head larxe. rounded, densely clot lied with coarse, erecl 
 
 fulvous pnhescence : antennie hlack : eyes larj;i', round, iiromineiit : cheeks closely 
 
 piiuctured, clotlied with hlack |)uhesci 
 
 thorax short, ovate, pro- and me.so 
 
 thorax clothed on the disc with dense fulvous puhesceiice. iiietathorax roundly 
 truncate, coarsely reticulate: win^s fuscous, (laler ahont the middle, marjiinul 
 cell short, truncate at tiji. first suhinar.u'inal cell nearly as larne as the marginal 
 cell, pointed towards hase. second suhmarKinal suhovate. its transverso-cuhitul 
 nervnres arcuate, receiving; the first recurrent nervii;-e heforethe middle, third 
 suhinarginal suhpentagonal, its outer nervnre sinuate and conlhient with the 
 
 second ri'current; lejis hla<k. thinly 
 
 othed 
 
 with 
 
 ha.sal seiruieiit cainpanul 'te, <'losely pnnctureil, shin 
 
 hairs : ahdomeii ovate, 
 its ajiical half and re- 
 
 lainiii}; si'jjinents clothed with dense fulvoiis puhesceni'i' : ventral surface of 
 •coiid seiiiiieiit finely and tlensely pnnctured, ajiical margins frin>;ed with jiWl- 
 
 terin^ fulvous luihesceiici.'. Lenjrlh 1.") mm.; expanse of Nings ",".') .iiio. 
 
 /•Vi/Ki/c. -Siipihir to the male, with the exception of the iiciathorax. which is 
 very ahruptly truncate, the iinnctnres of the second iilidomiual setrnunt coarser, 
 and the puhesctMice longer. liCngth 11 mm. 
 
 Hal).— Cdlonido. 
 
 This .<|K'i'i('rt is clo-xfly ullicd t>> S. minoln ('rt'.ss(tii, l)tit ii>!i\ 1h' 
 
 scpiinitcd l)y tlic iiioiH' rohti.^t t'oriii iiiid tlic |hi1k',sccii('1' ludiiii; 
 
 t'lllvdllS. 
 
 NpliwrophtlialniH caiiiiia Smith. 
 
 /■Vi(t((/('. — Unfo-testiictiotis, palest heiieath : the vertex and front den.sely clothed 
 with long, piilo ochraceous imhcscence ; head round, eyes large and prominent; 
 thorax : the anterior half of the mesutliorax clothed with hlack pulHjstjenee, tlio 
 
ii-jtbu-'w '.-. "mp-iW vJ*«.iSi!* 
 
 •Jl() 
 
 CHAHI.KS A. HI.AKi:. 
 
 liostcrior luilf with i)iil(' ocliniccoiis; tlu' a])iciil iiiiirjriiis of the sfcoiui. tliir<l ;iii(l 
 foiirtli Sfyuicnts liavc u Ijroad fasciii id' [nih' ochract'iius imhescciice ; that on the 
 st'coiid iin((lu('c(l ill the rni(hlU' into an anf:iilar sliapr ; Xhv l>asal half of t lie 
 second segment, and the tliird and sixth sediments entirely clothed with black 
 puhesciiice ; the entire insect sjn-inkled over with \ituji loose i)ale hairs. Leiijfth 
 1(1 nun. (Smith.) 
 
 Hiil». — Mt'xico. 
 
 N|>liH'i'o|>lillialiiin ledii Hlake. 
 
 /•'('H(((/('. - I'.lack ; head snl)(|iiadrate, posterior anjiles rounded, wider than the 
 thorax, densely ])nnetiired, thinly clothed with scattered ;;olden hairs: antennse 
 t'liscons ; eyes small, round; mandilile.s ferruginous at ha.se. hlaek at tips; thorax 
 short, ovate, thinly clothed with ohsciin' v''ilden ])ulpesceiici'. sides coarsely re- 
 ticulate, melathorax ahiuptly truncate; le^s lilaek, clothe<l with hlack hairs. 
 interme<liate and posterior tihiie armed with Ion;; spines; abdomen ovate, clothed 
 above with coarse jrolden pubescence; nndiT side covered with coarse continent 
 punctures, mariiins of the seuments frin^'ed with black hairs. L<'nKth 11 mm. 
 
 Hill). — Tcxii.s. One spi'riiiit'ii. 
 ("lo.sclv \v>iv\\i\)\v!i ainm/d Crcissoii. 
 
 Kpliii'roplilliiiliiiH coinbiiMtu .Smith. 
 
 FcHKf/c. —Entirely ol'a re<ldish brown; tlu' antenna', mandibles and h'^rs ferru- 
 ginous; the head and the thorax above clothed with ;;olden iiubesceTU'c ; tin- 
 sides of the thorax unarmed, narrowed jposteriorly ; the basal and four apical 
 sediments of the abdomen adorned with K'dden pnbescenci- ; the .second segment 
 haviuK two lar^'e ovate maciihe. jilaced transvers<ly a little beyond the middle, 
 Len^'th 1(1 mm. (Smitli.) 
 
 Hill). — Mexico. 
 
 K|»IiH>r<»|>litliilliliii t<M*(a (resson. 
 
 Female. — Form elon^tiite, subrobiisl. fuscous ; head narrower than Ilioiax. not 
 broailer behind the eyes; thoi'ax short, sulxiuadrate. broadest acros.s the middle: 
 abdomen oblonii ovate; entire body and Icfis clothed with very lon^'. dense, suli- 
 erect. |)ale ochraccons |)ubescence, more sparse on body beneath and leys. Length 
 i:{ mm. (CressoTi. I 
 
 Hill). — ( 'iilit'oniiii. 
 
 Allied to iii(i(/ii(i (."fi'ssoii, hilt iit once distiiiouislu'd hy tlif ptihcs- 
 ceiic' f the l)ody lu'iu'iitii, iiiid Icjrs hciii^r piik- ofliniccoiis iiiKtciid 
 of hhhk. 
 
 NpliH'roplitliHliiin riil»ri<*(>|»N (resson. 
 
 I-'emtih'. - Head dull rufous, densely punctured and clothed with pale ochracomi.s 
 pubesceiK'e ; mandibles, palpi and antenna' pieeiuis, or rtifo-piceous, the latter 
 jiroi .iKiiied as in niyriceps ; thorax (h'eply and coarsely punctured, es|teciiilly 
 on the sides, convex above, dt-ep black, clothed with short, fli'nse, black pubes- 
 cence ; on eai'h side before tlu' middle a small, (hittened tubercle, and behind the 
 middle a larKe, ohtu^se, rufous tubercle tipjU'd with tdack ;• pleura beneath and 
 the melathorax behind densely clothed with a short, fine, a|ipres.sed ])ale, oclira- 
 
NOHTH AMKHICAN HYMP:N'()l''rKKA. 
 
 21' 
 
 I. tliird and 
 tliiit oil the 
 liiilf of tin- 
 with bliu'k 
 
 iis. Lfiinth 
 
 seri(,'0(iiis iiuIh'sccikh' ; Ic^s piccidis, di'iiscly clotlu'd vvitli imlc oclinicco 
 
 US 
 
 Icr tlr.iii till' 
 rs; iintouiiii' 
 lips; tluiiiix 
 (•():irscly rt'- 
 hlack liiiii-s, 
 viiti', cldtlu'd 
 
 •SI' COIltllU'Ilt 
 L'tll IJ 111111. 
 
 id ifjis ffiiii- 
 M'sct'iui' ; tilt' 
 
 il four apical 
 
 joiid st'jiiiu'iit 
 
 tlic middle. 
 
 I tliora.N, Hot 
 the iiiiddk' ; 
 delist.', silli- 
 es. JA'llHtil 
 
 tlu' |tul)»'S- 
 
 uis iiihtead 
 
 le oeiiiaeoDUs 
 IS, the latter 
 •d. espt'ciiilly 
 
 (lack pilhus- 
 d behind tilt' 
 
 lieiieath and 
 !>ale, ochru- 
 
 piihesctMice : t\Wuv with a row of loii^;, acute, hlack spines; ahdoiiien ovate, con- 
 vex above; basii! sejrnieiit small, ((uadratt', piiiK'tured, olothed with dense, pale 
 ochraccoiis, silky pubescence; .second .segment UirKe, dull rufous, tin>;ed with 
 brown, densely, deejily and coiiHuently punctured, clothed with ochnieeoiis lui- 
 besceiicc, espceiiilly on the extreme sides and on the sides of the apical margin 
 where it is very dense and apjires.sed ; on the apical middle of tliis segment a 
 larne black sjiot, clothed with black pubescence, and on each extreme side another 
 blackish .sjiot, bordered behind with tlie ochraceoiis margin ; remainiiiK sennieiits 
 piceons, or rufo-pieeous, densely clothed, especially at tip, with a short, apiue.ssed. 
 pale ochrai-eous piiliescence. Length 12.'> nun. (('re,s.son.) 
 
 Hah.— ("ul)a. 
 
 Kpliiproplitlialina oriiditM Cresson. 
 
 Femalt'. — Form eloiinate, subrobust, bla<'k ; head narrower than thorax, not 
 broader behind the eyes; tliorax subiniadrate ; narrowi'd behind, and slightly so 
 ill front : abdomen ovate; head, th(U'ax, abdomen above and sides of apical half 
 of venter clothed with a loii>;. deii.se, erect, ochraceous pubescence; body beneath 
 and le^s sparsely clothed with black hairs, loii^ on the femora beneath. I/CiiKth 
 Hi mm. (Cresson. ) 
 
 H 
 
 Ai' 
 
 U). 
 
 -Calif 
 
 ornia. 
 
 Sack* 
 
 c 
 
 /'/(/( Lresrioii. 
 
 ■.plitlialiun Niclieliaiin Saiiss. 
 
 i-'inid' . — Head rounded, not (|ilite as wide as thorax, densely clothed with 
 ochraceoiis ])ubesceiice ; scaiie of anteliiue ciustaneous, clothed with >;litteriii)i 
 hairs, ttaLicllum fuscous; mandibles black; e.ves round, prominent, |ii>lislied ; 
 
 thorax 1- iliust, narrowed jiosterioily 
 
 irothorax densely clothed with 
 
 ocliiaceiiii- 
 
 piibesceiK e, niesothorax (iiiely riif;ose, black, metatlioiax abruptly truncate. 
 <lollicd with ochraceous pubescence ; sides dark rufous, coarsely piinctuied ; ic^'s 
 biiulit t'errii)iinous, clothed with long, jiale Klitteriii;; hairs, t'emoia piinctiiied. 
 intermediate and posterior tibiie armed exteriorly with black spines, knees and 
 <alcaria blackish; abdonieii broadly ovate, b.i.sal scfiineiit sessile with the second, 
 its apical niar>;iii frin;j;ed with ochraceous pubescence; si'coikI se^'iiieiit dark 
 rufous, coarsel,v punctured, havinj; on the disc at luicMle two sm.!'! jiatilus of 
 
 black plibesci 
 
 iiargiued laterally with ochraceous, ajiical iiiarj;iii blackish 
 
 third and fourth .setni".'i'ts clothed with pah' yellow. ;;litterin}; pubesceii 
 
 apex 
 
 black ; under side • 
 
 rujjinous. coarsely punctured. I,en;.'th II mm. 
 
 Hill). — Ari// . , . I '^icd. 
 
 N|»liH>ropSi> > .^^ ji»a(*ifi<'a ( lesson. 
 
 FciiKilf. — Rolj ■■ '. V iM'ad lai'Ke, iiuailraie, slij{htly broader than thorax, 
 extended and wi(h'ii<\ '.:ii,d the eyes, occiput truncate; thorax short, siib- 
 (|iiadi'ate. broad anteriori,> , ..lightly narrowed jiosteriorly ; abdomen short, ovate; 
 head, thorax, abdomen above and apical half of venter, clothed with dense. 
 <oarse, iiKM, ately loiiji, britrhl sanguineous hairs; base of abdomen, body be- 
 neath and legs with lesii den.se, < ', bluck hairs. I.enxthll l."> mm. ^<'resson.■ 
 
 Hal). — Calit'oriiia, 
 
 Distiiigui.-^hiMl^tVoiii cii/!foriiir<i Rjidos/., hy tho siidftcr, iiioic niluist 
 form, and larjrc tjuadniti' head. 
 
 ;si,i 
 
 It 
 
 
 ti 
 
 TKANH, AM! i KNT. SUC. XI 11. 
 
 CiHI 
 
 AfOfsT, IHHti. 
 
21 « 
 
 CHAKLKS A. HI-AKK. 
 
 NpliH'ruphtlialiiin v<>i>ttitH Klii^. 
 
 Friunlc. —Htjml l)lack, clotlu'd with black i)ul)esct'iicf, timt on thf front and 
 vertex reddish fiohlen ; antciniii- l)lac'k ; thorax l)lack, iiuhesecnt hcncath and on 
 the sidi's, tiiftfd on tlic l)ack. with a red border; abdomen l)hick, clothed above 
 with black haii-s «in the fii-st and second seKments, below the siiiue, the a])ical 
 sej^nients dothetl with tnfted reddish jtolden |)ubescence ; le^fs black, clothed 
 with black hairs, spines black. 
 
 Mtile. — Head clothed with black hairs, with the exce|>tion (jf a little tuft on 
 the vertex, which is reddish K'>lden ; sixth se>;inent of the abdomen same as in 
 the femali! ; wings black, with a violet reflection, nervures. stigma and tejiuht; 
 blackish. (King.) 
 
 Hab — Mexico. 
 
 N|»liu>ro|»lithnliiia urNiila t'res.son. 
 
 Male. — Black; thorax and scutellum above, and abdomen above, except first 
 and ba.se of second segnu'nts, clothed with a dense golden, fnlvoiis pubescence ; 
 wings black; second segment of abdomen shining, the pulx'scencc sjiarse on the 
 disk, the apical half generally divided into two more or less distinct, roundeil. 
 bright fulvous si)ots, sonietinK viifiuent. Length 13 mm. (Cresson.) 
 
 Hill) — Ofegofi, Texas. 
 Allied to biontldfd ('i"es.soii. 
 
 NpliicroplitliuliiiH HiirHriu Hiake. ' 
 
 /•Vm«/<'. --Hlack ; lieail rounded, densely clothe<l on vertex with golden pubes- 
 cence, checks testaceous, coarsely punctured ; antenna- fusco-testaceous, flagelluni 
 slightly pruinose : mouth clothed with long white hairs: eyes round, polished : 
 thorax ovate, narrowed posteriorly, densely clothed with golden pubescence; 
 legs blackish fuscous, tarsi. s|)ines and calcaria testaceous; alxlomen ovate, 
 clothed with gcddeii pubescence, more den.se on apical segments; ventral surface 
 black, thinly clothed vvitli long white hairs, margins of apical segments densely 
 fringed with i)ale golden i)ubescenci'. Length \2 mm. 
 
 Hill). — Ni'vadii. ( Morrison. ) 
 
 Nphu'roplithaliiiH arota Cresson. 
 
 /•>(»((/('.— Robust ; lirown-ferruginous ; head round, narrower tlian thorax; 
 thorax short, s\ib(iuadrate. slightly narrowed posteriorly; abdomen short ovate, 
 much broader than thorax ; head, thorax at sidi^s and beneath, and apex of ab- 
 domen and beneath, clothed with a moderately densi' silvery white pubesceni'c. 
 interspersed with long erect hairs of same color; the aiipre.s.sed pubescence on 
 the head is very dense; thorax above and second abdominal segment above with 
 a dense. api(re.s,sed golden fulvous pubescence, also intersperse<l with longer erect 
 hairs of same color; legs blackish, with long pale pubescence. Length T mm. 
 (Cresson.) 
 
 Mill).— San Dieiro, Califofiiia. 
 
 NpliH'roplillialiiia iiiarpt'Mia ISiak<'. 
 
 Fcmiili: — lilack ; heati sub(|uadiiife, rounded posteriorly, clothed with yellow 
 pubescence, cheeks coarsely punctured, mouth densely clolhi^l with pale pubes 
 cence ; anteunti* fuscous, .scape clothed with whitish pubescence, flagelluni slightly 
 
NORTH AMKHICAN IIYMKNOPTKHA. 
 
 •211) 
 
 front iiiiil 
 atli and on 
 tlu'd above 
 
 tilt' ajiical 
 •k, clotlu'd 
 
 ttle tuft on 
 same as in 
 iind togulie 
 
 fxcejit firsst 
 •ubt'sci'iici' ; 
 mrso on tlu' 
 •t, roundud. 
 
 >.) 
 
 ildcn pillK's- 
 s, llaKclliini 
 1, polislifd ■, 
 lulx'sccnct' ; 
 nii'U iivatc. 
 tral siirfacf 
 nts dcnsclv 
 
 tin tliorax : 
 
 liort ovati'. 
 
 ti|M'X of ab- 
 
 Illbl'SClMlCC. 
 
 Ix'sccucc on 
 above witli 
 bilker (>re(t 
 
 |^;tb 7 nnn. 
 
 litli yellow 
 liali' |>iil)es 
 lini sliglitly 
 
 l>niinose; eyes round, jtolislied ; tborax ovate densely covered witli yellow pu- 
 beseenee; legs l)la('k, tbinly elotlied with lon>; silvery liairs. sjiines of tibiie and 
 tarsi fuscous; abdonuMi ovate, apical niarjrin of basiii scKinent friTijred wit!) ])ale 
 pubescence, basil half of second segment black, closely imnctured, clothed with 
 erect black liairs. apical iiiarsin and reniHiiiiiif; sefinients clothed with yellow 
 ]iiibescence ; ventral sefrinciits black, deeidy imnctured : entire insect beneath 
 iliinly clothed with long silvery hairs, more dense on apical margins. LeuKtli 
 U) ]-2 nun. 
 
 Hal). — Kaiisju*, Utah. (Snow.) 
 
 WpliHProplithalinn calif'orniea Rados/,. 
 
 Fi'iimle. — iihivk : the head above the eyes, the thorax mbove and the abdomen 
 abovi', except the extreme ba.se, densely clothed with ferruginous pubescence, 
 sometimes varying to golden ochraci'ous; the head is subijuadrate, liiit not broader 
 than the thorax, the eyes are small, rounded, entire and convex, theaiiteniue are 
 lilack. and somewhat sericeous; the thorax is short, broad ovate when viewed 
 from above, the )iunctnres are clos«> and rather coarse, the metathorax abruptly 
 truncate behind ; the legs are entirely black, with black pubescence ; tile ab- 
 domen is ovate, clo.sely and <leeply imnctured ; the node, the base and sides of 
 the large l)asal segment as well as the venter entirely, more or less elotlie<l with 
 black pubescence. Length !t-l.") mm. (Cre.sson.) 
 
 Ilal) — ('alit'ornia.<^^- 
 
 NphtcroplitliHliiia pliu'dra Hlake. 
 
 Fi'iiinli'. — Ferruginous; head siib(|nadrate. posterior angles rounded, vertex 
 clothed with deep golden iiubescence ; antenme fuscous, flagellum pruinose. tips 
 (if uiaudibles blackish ; eyes round, cheeks fuscous, closely punctured ; thorax 
 sluirt. ovati', clothed on disc with deep golden pubescence, tlaiiks fuscous, meta- 
 thorax abruptly truncate; legs fuscous, thinly clothed with hmg whitish hairs; 
 abdomen elongate ovate, densely clothed above with ileep golden pubescence, 
 interspersed with long erect hairs of same color, fringes of apical margins more 
 dense; underside fusco-ferrngiiious. sparsely punctured. Length T mm. 
 
 Hal). — Ni'vada. 
 
 .Mlit'd ti) <iiiriiri(i,\n\t may bf di.stino-iii.slii'd liy tlic tciriiint'iit l)^!!"^ 
 fcrnijiiiKiiis. 
 
 N|»liH>ro|>htlialiiia f'lilvoliirta Cresson. 
 
 M(ih\ Head black, coarsely punctured, with hmg black puliescence. mixed 
 with fulvous on the vertex; eyes small, rounded, entire and convex; antenna' 
 about as long as the head and tluu'ax, black, sericeous; thorax coarsely punctured, 
 black, the upper surface clothed with a long, dense, brigiit fulvous pube.seence; 
 on the sides and beneath it is black ; metathorax broad, abrupt beliind. nmiided 
 on the sides, reticulated with coarse puui'lures and thinly clothed with fulvous 
 pubescence; wings ample, blackisli, much paler about the middle; the cells much 
 as in .s'. nitniticDht, except that the third snbmarginal cell i which is also very in- 
 distinctly detiiie<l) is more naridwe<l beneath, and the second submarginal re- 
 'fives tlu' first recurrent nervure mm-e towards the middle; legs entirely black, 
 with black pubesceiice ; abdomen ovate, black, shining, closely punctured anil 
 clothed with black pubescence; apical margin, sometimes the apical half of the 
 
 
 n 
 
 
 \^l 
 
 «1 
 
 •11 
 
 ,1 
 
 1 
 
•J20 
 
 ('HARLP>* A. BF-AKK. 
 
 larut' Imsal scKiiu'iit and all tin' otluT scjjiiifuts above, clothed with a ilciise, 
 hrinht ('\ilvoiis jiiilx'sci'iict' ; liciH'atli, entirely black. Leiijfth 11-1."5 iniii.; ex- 
 panse of winns lit-'iS..') mm. (Cre.ssoii.) 
 
 Mill). — Colorado. 
 
 The pubescence on the upper surface of the head, thorax and ab- 
 domen varies from ochraceous to ferrutrinous, but generally it is 
 l)ri<fht fulvous. This may be the male of S. cn/iforiiici Kadosz. 
 
 Npliicroplilliuliiia HNpiiNin Blake. 
 
 Fi'diitlr. — Fuscous; head round, scarcely as wide as thorax, closely )(unctured. 
 clothed with whitisli puhescence: anteiniie fuscous, tla;;elluni paler, scajK' linely 
 punctured, clothed with K'ittering hairs; eyes round, iiolished ; thorax (piadrate, 
 slightly narrowed behind, tdothed with coai-se golden pubescence; metathonix 
 abruptly truncate; legs fuscous, clothed witii pale glittering hairs; abdomen 
 ovate, second segment clothed with long, silky, golden pubescence; apical mar- 
 gins of segnient.s fringed with pale yellowish hairs. Length 7 mm. 
 
 Hal), — Nevada. 
 
 .\llied to (Kirarld Blake. 
 
 MpliivrophtlialniH <'liiroii Hlake. 
 
 Male. — Black ; head nnt as wide as the thorax, clothed with long black jiubes- 
 cence ; antenna' black; eyes small, round, prominent; thorax short, ovale, 
 (■lotlied with long lilack pubescence; metathorax coarsely reticulate; wings 
 uKxlcrate, fuliginous, three submarginal cells, the marginal cell truncati> at tip. 
 tirst submarginal large, second small, subtriangnlar. its basiil and a|)ical nervures 
 sinuate, receiving tiie first rt'current nervure near the base; third submarginal 
 larger, slightly narrowed beniath, ret-eiving the second ri'current clo.se to its 
 apical nervure; leg', black, clothed with black hairs; abdomen ovate, iietiolate, 
 basal segment coarsely punctured, second closely and finely puiU'tured, clutlied 
 with long, erect, black pul)escence. remaining .segments densely clothed with 
 long fulvo-ferriiginous pubescence; under side shining, secon<l .segment ('losely 
 punctured. Length !• mni.; expan.se of wings l.'{ mm. 
 Hal). — Texas. Two s[)ecinu'ns. 
 
 This species is closely idlied to fn/voJiirid ('res.son, but may be 
 readily distiiioiiished i)y the clothinir of the heiul iiiid thonix bcinu' 
 bliU'k, iind havin<j:"the third submaririnal cell distinct. One 'iiriety 
 has the thorax and apical segment of the abdomen clothed with 
 fulvous pid)escence. 
 
 N|>liipro|ililliHlinii KonobiH Blake. 
 
 /''(')»((/('.- I'uscous ; head round, not as wide as thorax, clothed with denst-, deeii 
 golden pubescence; eyes round, i)rominent ; anteniiR' fu.scous ; thora.x (jiuidrate, 
 narrowed iiosteriorly, clothed with reddish golden pubescence, flanks smooth, 
 metatlKU-ax abrui)tly truncate, clothed with long erect hairs; legs fu.scous, thinly 
 clothetl with long pale hairs; abdomen ovate, l)a.sal segment with long, erect 
 hairs, .second and following si'gments dothwl with lieiise reddish g<dden jiuhes- 
 cence ; ventral fringes whitish. Leiigtli (! mm. 
 
 Hat). — California. 
 Allied to aurarid Bhike. 
 
NOKTH AMKKICAN JIYMKNOI'TKKA. 
 
 221 
 
 Wplnrrophthal'iiia bellonn ('ressui). 
 
 Ffiiuile. — KutVi-pici'oiis; elost'ly mid ilei'ply imiictiired ; lii'iul ut)t uidtT than 
 the thorax, clothed ahovc the aiiteiiiifp with a h)n>;. di'iisc. riifo-fi'niiniiious \ni- 
 lifscfnci', hencath the aiiteniiie and on tlie cliet^ks tlie jjiihesoence is l)laek and 
 scattered: eyes small, rounded, entire, convex and iiolislie<l : niandihhs l)laek, 
 smooth and polished; antenme deep l)iack, the flafjellum snhsericeous : thorax 
 ovat<'. sliahtly narrowed hehind, clothed above with a lon^. dense, rut'o-ferruni- 
 nous )>iil)escence, lonjier on the summit of the metathorax. which is ahrnptiy 
 truncate hehiiid ; sides of the thorax sparsely clothed with lonj; black imbescence ; 
 beneath, it is more or less mixed with pale yellowish : leys black, clothed with 
 black i)nbescence, sliijhtly mixed with ]iale yellowish, especially on the femora 
 beneath: base of the eox.e rufo-piccous ; alxbimen ovate, closely punctured, the 
 Uu-jiv basil segment above clothed with a dense rufo-ferruninons pubescence : the 
 node, the extreme base of the lariie liasal sefrment and the apical segments above 
 more or less clothed with black pubescence, except the a])ical margins of all the 
 scfiinents above and beneath, where the pubescence is pale yellowish : >onLetinies 
 tlu' ]iubescence of the third sejimcnt al)ove is tinged with reddish : the node be- 
 lU'ath and the large vi'Utral .si'gnu'ut has a scattered, pale yellowish puliesceiice: 
 the node above is blackish or i)iceous-black, circular and rugose at tip. and smooth. 
 .-Iiining anil depressed at base. Length Kl l.'i mm. (Cresson.) 
 
 Hal). — Cdlonulo. 
 
 Allicfl to N. rii/ifonilcd I\ii(i().<z., hut i.< (li.«tiii<riiisli('(l by tlu' color 
 ot'tlif body hciiiL' nit'o-piccous instead of'blai-k, and by the ahdoincn 
 liavin<r only the larofe ha.sal se^rment ri'ddi.sh above. 
 
 K|thipro|»litliHlnia vfrtivalin .''.nith. 
 
 /•>/»((/('. — Hlack : the head liroader than (lie thorax ; the vt'rtj'X red and clotlied 
 with ferruginous pubescence; thorax narrowed posteriorly, the sides slightl.v 
 contracted a little beyond the middU'. the lateral margins crennlated : the meso- 
 ihorax has a broad red stipe on each' side ; th<' legs and the thorax beneath thinly 
 iipvercd with (lale glittering pubescence; the intermediate and ])osterior tibia- 
 armed exteriorly witli a row of sharp spines ; abilomen: the second si'gment has 
 I Wo small ovate spots at its basal margin and beyond them two large ovate ones 
 almost touching in the centre of the segment; the four apical segments t'ringed 
 with long, pale, yellow, glittering pubescence. Length 12 mm. (Smith.) 
 
 Ha!>. — Mexico. 
 
 Npliirroplitlialma H>gina Cresson. 
 
 Frniiile. — Very closely allied to N. hcUonn, from which it ditt'ers only by having 
 the pubescence of the legs and of the abdomen, except on the large basal .seg- 
 ment above, nitiirli/ dee]> black, ami the segments not fringed with yellowish : 
 the pubescence of the head, thorax .md large ba.sal segnn'ut of the alidomen 
 above varies to yellowish ferruginous. Length l.'i mm. (Cresson.) 
 
 Hah. — Colorado. 
 
 M|»liH>ro;;hthalnia oocciiieoliirta RIake. 
 
 -l/d/c. — Black: head round, not as wiile as the thonix, coarsely reticulated. 
 I'lothed with long, coarse, scarlet i)ubes<'ence ; antenme black ; eyes round ; tho- 
 rax .short, narrowed behind, pro- and niesothorax clothed similar to the head. 
 
 m 
 
 ■'Ml 
 
')•>'} 
 
 CHAHLBS A. HI.AKK. 
 
 iiictatlHinix iitiruiitly nuiiKled, oiMrsi'ly punctured ; wings dark fuscous, niurginal 
 rcll small, aliruptly truncate at tiji; first subniarginal larger tlian tint marginal, 
 -.eeoiid siil)triangnlai-, receiving the first recurrent nurvure, luiar the first sub- 
 marginal, third distinct and extending beyond the nuirginal ; legs black, with 
 black hairs: abdomen ovate, luisal segment clothed with erect black hairs; ab- 
 domen ovate, basjil segment clothed with ei'ect black hairs, ai)ical half of second 
 and the following segments {'lothed with long, coarse, scarlet jjubescence ; under 
 side black, shining. I,,ength 11 mm. ; expan.se of wings '20 mm. 
 
 Ft'iitiilc. —Same as the nuile, with the e.\ee|)tion of the second segment of the ab- 
 ilomeii being entirely covered with coarse scarlet pubescence. Length M.,")-i:{ mm. 
 
 Hill). — Calitoniia. (Mr. liilich.) 
 
 doscly iillic'd to /W/(W(//7a C'rt'sson, hilt may lu' <li^tiiigiiislK'(l hy 
 the iiiai-ojiiial cfll l)LMnir ."inaller and the clothing much coarser. 
 
 Kplitcroplitlinliiia piilchru Smith. 
 
 Femiilf. — ]i]uv]i : head small, mirrower than the thorax and densi'ly clothed 
 with lu'igbl golden pulK'scence ; thorax deejily notched at thi' sides and having a 
 tninsverst' curved fascia of gohh'n puliescem-e a little beyond the middle; the 
 thorax liene;ith and the legs have a i)ale ochraceous glittering i)ube.scence ; ab- 
 domen : the second segment has on ea<'li side at its bast a large angular macula, 
 and towards its a|ii<al margin on each side a tninsversc, oblong, subovate macula 
 of reddish yellow: the three a|>ical segments clotlied with golden pubeJ^cence, 
 ihe Tif'b having on each side a mixture of black and fuscous hairs. I>e igth l!l 
 mm. (Smith.) 
 
 Hill). — Mexico. 
 
 Kpliicroplillinlina Siiiiiic'hrnNti Sauss. 
 
 .l/(i/c. Head and thorax bhu'k, clothed with ochraceous pubescence. Tue^o- 
 
 thorax black: wings hyaline, clouded at a))ex, marginal cell short, truncate at 
 
 tip: abdonuui above clothed with scarlet i)ubescence. ajiex t)lack : eyes round. 
 
 Length 115 nnn. ; exiianse of wings IT mm. 
 
 fViiKi/c — Head sulxiuadrate, jxisterior angles rounded, clothed with dcn.se 
 (5~t ochraceous pubescence; eyes round, convex, polished; antenna' black : 
 ^^ thorax short, subquadrate, .somewhat wider than the head, narrowed 
 ywJ posteriiu'ly. disc clothe(l with black jmbescence, margined laterally 
 ^T_ and i)osteriorly with ochraceous; legs black, clothed with yellowish 
 
 ^m\. hairs: abdomen ovate, secon<l segment clothed with <lense ochraceous 
 ^^^j piibesceucr, having oti the disc a bilobate |mtch of black, .somewhat 
 
 "^HK' resiMubliiri a horseshoe in form, extending to the anterior margin. 
 W^ third and fourth segments with black |)ubescence, the remaining ones 
 
 ochraceous, a])ex black. Length H.,Vi;5 mm. 
 Hal). — Mexico. 
 
 KpliH'roplitlialiiia inilitariN Smith. 
 
 /•V'»i((/c.-- Bright brick-red: the head, legs, ba.sal st>giuent of the aJKbiUien, a 
 trilobate spot at the base of the second ..e;;n)''nt, an angular one on its apical 
 margin, loid also the four apical segments, black ; all the black parts of the in.sect, 
 except the legs, ar»' clothed with black ])ubescence. on the legs and the red )ior- 
 tions it is griceous. Length i:{ mm. (Smith.) 
 
 Hal). — Jamaica. 
 
NOKTII AMKUICAN HYMKNolTKIiA. 
 
 223 
 
 Kplitrroplitlialfiin ooeidciif hIIn Linn. 
 
 Male. — Hlilfk ; lu'Ufl rounded, clDtlii'd with scarlet puliesccncc ; eyes ilirm-. 
 riiund and prominent ; antennie and inandiMes l)lack ; tiiorax rohnst, ovate, 
 clothed on the disc with scarlet imtiesci'iict; ; inetathorax roundly trun<'atc. 
 coai-sely and continently punctured ; letjs hlack, dotlied witii hlai-k hairs; win^s 
 ample, t'uliffinous, three siil>marKinal cells, marginal cell short, aliruptly truncate 
 at tip; first suhmarjfinal pointed at either end, second clon^iate sulxiuadrate, its 
 tnmsverso-cuhital nervures sinuate, receiving the fii-st recurrent nervure near 
 thehase; third suhi'iarjjinal sulipentufjonal, much narrowed heiieath, it.s apical 
 nervure conrtuent witli the second reciirreJit; tenu'"' <'l"'l't'"l anteriorly with tine 
 scarlet ))u1>escence ; abdomen ovate, hasal segment petiolate, finely punctured, 
 clothed with erect hlack hairs; second segment black, shining, minutely punc- 
 tured, clothed with short, hlack pubescence, its apical margin and third and sixth 
 seirnients clothed with scarlet iiuliescence, fourth and fifth with hlack; ventral 
 surface shining, finely and remotely punctured; pubescence coai-ser than that ol' 
 the female. Length \(i^i2 tnni. ; expanse of wings HO 10 mm. 
 
 Femnlv. — Head round, not sis wide as tlie thorax, dark rufous, densely clothed 
 with scarlet pubescence, cheeks coarsely imnctured, .scape of antenme castaneous, 
 lincly imnctured, Hagellum fu.scous ; mandibles hlack at base and tips; eyes 
 round, polished; thonix robust, ovat<', narrowed jiosteriorly, coarsely punctured, 
 densely clothed on the disc with dense, scarlet pubescence; pro- and nu'sothorax 
 arnu'd on each .?ide with an ovate tubercle; metatliorax abruptly truncate, its 
 |H)sterior surface finely punctulate, lateral declivities of the thor.ix black, finely 
 |iunctured; legs black, clotiied with black liaii-s, femora finely punctured, inter- 
 mediate and posterior tibia' armed with sjiines, calcaria black : abdonu'u ovate, 
 basal segment campanulate, black, finely punctured at apical margin ; second 
 segnicTit l)lackisli castaneous, finely punctured, with a broa<l band of scarlet pii- 
 htsience, deeply emarginate at basal and ajiical margins, in some individuals 
 almost forming two large ovate spots; third segment hlack. remaining segments 
 (jollied with scarlet pubescence ; vciitral surface black or castaneous, finely jiunc- 
 tiircd. Length 1()-'2T mm. 
 
 1 liih. — Nofth Aim'i'ica. 
 
 riiis i.s the lai'o^ot and iiio.st c'oii.spic'iioiir" species we have, and i.s 
 vdv ahiiiidant in individinds. The vc.-ititiire varies i'(»nrii(U'iid)ly, 
 the piihescenee is sometime.^ oehnieeoiis or tiilvoiis. more especially 
 ill the males. In some males the apical seofinents are entirely covered 
 with scarlet puhescence, while others are handed wilii hlack. 
 
 Nplitvroplitlialina an<lr<'iiik"oriiiiN Smith. 
 
 .l/<i/c.— Hla<'k, den.sely pubescent, tint on the vertex and niesotliorax bright 
 ochraceous, on the legs and rest of th.' body it is cinereous, tinm'd with yellow 
 on the abdomen above; the wings smoky hyaline, Iniving a broad darker band 
 on their ajiical margins; the abdomen petiolated, the petiole having a broad lon- 
 gitudinal groove, not (luile reaching the apex, and on each side an obtuse tooth 
 near its base; the abdomen is strongly punctured and shining. Length it mm. 
 Hah —Mexico. 
 
 MpliHTOithtlialina crt>iiMa Crcsson. 
 
 /•><»(!/(?.— Black, closely and roughly punctured; head not wider than the 
 thorax, piceous-black. with black pubescence ; the vertex with golden ferrugin- 
 
224 
 
 CHARLKM A. ni-AKK. 
 
 ons piibesct'iico; cyt'M small, roiiiidfcl, entire imd covvx ; iiiiteniiit> liliick, the 
 tlaKelluin sericeous; thorax elongate, slightly iiarroweil liehiiid the iniddle, rufo- 
 piceous aliove, with delist- golden ferriiKiooiis puhesccuce, the sides and l)eiieath 
 hlack, with spary,e hlaek j)iibestTi)c<' ; nietatliorax very al)ru|>lly truncate hehiiid; 
 lejjs entirely black, shining, with black pubescence; abdomen larRe, ovate, 
 densely and finely punctured, black, with black pubescence, except the larxe 
 basal sejjment al)ove, which is denstdy clothed with Kuhli'" ferruginous j>ubcs- 
 ccnce, almost concealinj; two lar>ie, ill-defineil, nearly contiuoiit, ferruginous 
 spots on the disk ; the pubes<'ence on the upjier surface of the third se^rment i.s 
 mixed with jfolden ; the iiwle black, short, circular at tiji and dei)ros.sed at base, 
 with a short emarninate process beneath ; venter entirely black and somewhat 
 shiniuK, Len);th Ki mm. (('re.sKon.) 
 
 Hah. — Colorado. 
 
 This may he the feniale of .S'. bioriifafti. 
 
 Npliirroplitlialiiin Hiiti|;ii4>iiNiM Fab. 
 
 Miilr.—Hndy with dense, bri(;ht scarlet red hairs above; beneath black; an- 
 tenna' and inferior part of the head black; win;js black violaceous; ra<lial cell- 
 ule truncate at tip; third cubital cellule pentajional, contracted on the anal side, 
 its apical nervures almost obsolete; metatlionix black; abdomen, anterior de- 
 clivit.v of the bassil segment extendinjj in an an>;le on the sujx'rior portion of the 
 segment, black ; i)etiole black ; venter with a slight scarlet red band rather 
 beiiind till' middh-. Len<rtb about niiu'-tweiitieths of an inch, V2 mm. (!^ay.) 
 
 Frmitli'. — Head very large, of a ferruginous .scarlet, the parts of the mouth 
 black; antenuie black ; thorax if a ferruginous '.carle, ; ai)d()men bhick, clothed 
 with black hairs, second segment scarlet, ha' ing somt times a small black sjiot 
 near the b;ise ; a])ical margins of the la.st tbree segmei ts fringed with silvery 
 ]inl)escence; legs black, clothed v.ith black hairs; spines Slack. Length l."> mm 
 (St. Farg. 1 
 
 Hal). — Auti'.'-ia, Mexii-o. 
 
 Splitrroplitlialnia iii(Ml(>a Cresson. 
 
 /Vm((/('. — Dee]! black, coarsely jiu net u red ; head entirely black, suliorbicular. 
 not wider than the thorax, clothed with coarse black pubescence; eyes small, 
 rounded, entire and convex; antenna- black, the tlagellum sericeous; thorax 
 elongate, slightly iiarrowe<l lu-hind the middle, clothed above with dense yellow- 
 ish ferruginous pubescence, on tlie sides and beneath with black pubescence ; 
 abdomen ovate, black, closely punctured, the punctures not so rough as those of 
 the thorax; the large ba.sjil segment above obscure ferruginous and densely 
 clothed with yellowish ferruginous pubescence, the extreme ba.se, the sides and 
 the rest of the abdomen with black imbe.scence. fjength II..") mm. (Cresson.) 
 
 Hah. — (^)l()f!i(l(». 
 
 NpliR'ruplitlialnia bioriilata Cresson. 
 
 Jf(/?c. "Black : cUisely lumctured. densely clothed with long black pubescence; 
 head entirely black ; eyes small, round, entire and very (;onvex ; antenna' nearly 
 as long as the head and thomx, black, the tlagellum .sericeous; thorax ovate, 
 clothed above with long, dense, yellowish ferruginous or golden yellow i)ubes- 
 cence, beneath with black pubescence, a.s well as the metathorax, which is broad 
 
 I 
 
il 
 
 •I 
 
 NOKTH AMKKK AN M YMKNOl'TKKA. 
 
 22o 
 
 liick, tlu' 
 (Ue, ruto- 
 l lifiieiith 
 i; l)iliin(l : 
 
 il\ oVtttt'. 
 
 tin- liirn*' 
 )US piitu's- 
 rruninoUH 
 .('gnicnt is 
 d at Iniwf, 
 aoinewlmt 
 
 liliick ; iin- 
 liuliiil cfU- 
 i\ iiiiiil side, 
 iiterior de- 
 •tion of tin- 
 iiiid riitlicr 
 11. (Say.) 
 
 tllC lUOUtll 
 
 ck, cliitlu'tl 
 I black sjiDt 
 itli silvery 
 ;tli ir> null 
 
 lioi'hii'ular. 
 •yes small, 
 thorax 
 ISC ycllow- 
 ulu'scoiicc ; 
 as those of 
 1(1 densely 
 c sides and 
 (Crcssoii. ) 
 
 nihescencc ; 
 imiv nearly 
 ovax ovate, 
 How puhes- 
 cli is broad. 
 
 rather ahruiit hchiiid and coar.sely rcticnlat<(l ; tcKiihc imnclnrcd, shining ; winus 
 aiiiplc. hiackish, sonietinics sli^'htly paler ahoiit the middle, with a lonKitiidinal 
 siihhyaline streak in the second snhmarKimil and second diseoidal cells: mar^'inal 
 cell short, hroailly truncate at tip and not exceeding the tir (f the third sulimar- 
 ;.'iiial cell; three suhniar^inal cells, the first longer than .le inarninal, pointed 
 a! either « iid : the second as lon^ as the marginal, pointed at base and greatly 
 narrowed towards the mar^jinal, receiving; the first recurrent nerviire about one- 
 third from the ba.se : the third submai'Kinal subobsoletely defined, short, the tip 
 exleiidim; beyond the marginal cell and iiointed, the side nervnres descending 
 almost jiarallel below the mi<ldle to the cubital nervnre, where the ajiical nerviire 
 becomes <'ontiuent with the .second recurrent nerviire; lejis dee|i black, with 
 black imbescence; abdomen oblong ovate, gradually narrowed to the lip, black, 
 somewhat shiiiiin;, closely and finely punctured, clothed above with dense black 
 pubescence, esjiecially on the apical margins of the third and followint; sediments, 
 lar}.'c basal se>:ment clothed, except at ba.se. with short, ilense, yellowish I'erriijii- 
 iioiis en' jrcdden yellow pubescence, but not so deii.se as to hide two larne, round, 
 vellowish ferrilirinous spots, one on each side behind the middle of the seirment ; 
 these spots appear soiiietiiiies more or less continent, bavin;; the aiipearance of a 
 liidiiil band ; the node is short and shining black, with a sparse lilack pubescence 
 ixcept on the apical margins of the .se;;inents. where it is ilense. Length 11 17 
 mm.; expanse of win^s l!l iJ.'^..") mm. K'resson.) 
 Hill). — Colorado. 
 
 KphipropliiliHlina UNopiiK Cresson. 
 
 Mull'.- liUu-k. with larue. close, detp piinctiires, and lon^' black inibi , !\i < ; 
 head, above the anteiiine, clothed with lout: red pubescence : eyes small, rounded, 
 cut ire and coiivi'X ; ant en me black at base, the llaKcllum brown sericeous ; I borax : 
 piotborax. me.solhorax and sciitellnni rufous and clothed with loii^', dense, liri^'hi 
 red pubescence; pleura and metathorax rnfo-piceous, the latter more reddish at 
 base, reticulate with coarse punctures ami I'lothed with loii^' thin black pubes- 
 cem-e ; te^'iihe with reddish ]iubescence; win^s blackish, paler about the middle, 
 with a siibliyaline dash in the second siibmar^inal and second discoidal cells ; 
 luar^iinal cell short, very abruiitl.v and broadl.v truncate at tip; two distinct siib- 
 iiiar;.'iiial cells, the first as lon^; as the mar^'inal, the st'cond a little shorter, re- 
 eeiviiiK the first recurrent ncrvtire about the middle ; the third submar^inal cell 
 iibxdetely defined; legs entindy black, with black pnbe.scence ; abdomen ovate, 
 K'radiially narrowed behind, the lumctiires not so large as those id" the thorax; 
 large ba.sal segment rufous, less bright beneath, with a blackish longitudinal 
 stripe on the dividing suture between the doisil and ventral surface, except ex- 
 treme ba.st' and apex is clothed with a dense, bright red pubescence ; on the rest 
 of the abdomen the iiuhescence is deep black, large ventral segment with a cen- 
 tral longitudinal carina, more sharjdy developed on the posterior half id' the 
 .segment, [.ength 11.5 mm.; expanse of wings I!)..") mm. (Cres.son.) 
 
 Hill). — Colorado. 
 
 This may be the male of tS. (VfjiiKi, as it resetiihlc.s that .siK'cie.s iti 
 the di.stribution of color. 
 
 Hphwrophthalma hector Hlake. 
 
 Mdle.—Hcud black, round, coarsely |ninctiired, clothed with coarse ferruginous 
 pubeseeiiee; eyes ainall, round, prominent; untcnnre black, .scape idosely piine- 
 
 TRAX8. AMER. ENT. 80C. XIII. I '2!)) AUOU8T, 1886. 
 
 ''HI 
 
 '■hi 
 
 K, ■H 
 
»»Ji«««k>.«-_,»,«5i.^ 
 
 •i'J(i 
 
 <'IIAl{l-h>i A. HI.AKK. 
 
 tiirrti; tlionix ovati-, iitistoriorly imrnnvcd, pro- ami iiu-xiiliorax clotlu'd iiImjvi- 
 will) dcnsi'. CI Hirst', fcrrinriii<»iis jmiIm'scciici', iiu'tathonix roiimlly tniiu-atc, coarsi'ly 
 rt'ticulittc, ilttrsiil uroovf not i-xtcmliii;; to tin- iiiiil<ll<-. «i(l<-s <-lo.s«-|y ininrturcd : 
 wind's t"u I iui nous, insirui.iiil (•••ll sulioviitc, tniiKatc at tip. first >iiliiiiart;inai nt'arly 
 lis hii/f ii.H llic iiiar^'iiial. sccoiid wide liciirath. r«-<'«Mviiitt tin- rf«'urri-iit iHTVurf 
 ln'Corc llic middle, its aiiii'al iicrviiri- arniatt': Icjfs Idack. witli s4-attfn-d Idack 
 liairs; alxioincn ovate, liasal ses;iiieiit rainpaiiulate. Mack. rli>s4-ly punctured, 
 sccoikI se)riiieiit fulvo-f'errufiiiious, tiiiely punctured. In-arint a scattered fernijii- 
 nous ))ul)esceiice, its ))asal and a)>ical nuir^'ins Mack, n-nutininu seKnients lilack, 
 ilotlied witli dark t'erru^'inous pulies<'en(«' ; ventnl surface of second .scjinient 
 witli It hiiiKitudinai carina. Lent.Mii I'J mm.: ex|>iin>e of winjis 1!) mm. 
 
 Hill) 
 
 .mi.siif^ 
 
 ( 
 
 •tidii of Mr. Nurt 
 
 on. 
 
 This may prove to \)v the iiialc of .S". ni/iiin ("ivsmhi. 
 
 N|»liit'r<»|»lillialiiin iiioiiticolH ( res-on. 
 
 .V(//('.- lilack, ciiisely and deeiily punctured ; head and tlmnix clothed ahove 
 with lonfi, dense, j^rayish oclnaceous puliescence, iH-nt-ath with hiack pulM-s<-en(re ; 
 eyes small, round, entire ami very convex : anteiinti- black at lia.se, the tlauellum 
 hrown sericeous, met a thorax rounded, rather ahrupt Indiind. reticulat*- with coarse 
 l)UMctur(s and clolhecl with lilack puhescenci- : wiiijis hla<-kish. |tiiler about the 
 middle; inaitrinal <'ell short, truncate at tip. not excei-dinjj the tip of the tliird 
 sulim:ir;.'inal cell ; three sulmiariiinal cells, the tii>t as lona :ts 'lie marginal, the 
 second shorter, much narrowed towards the man;inal. n-ceiviiiu the tirst re<'ur- 
 rent n( Tvure one-fourth from the hase. the third suhmart:inal sulmhsidetely de- 
 tineil. >ulit rianj;iilar. exlendinj.' heyond the mar^'inal ctdl. |Hiinted towards the 
 apex of the wiuK and much narrowed heiieath. the apical nervure confluent with 
 the second recurrent nervure; a curved suhhyaline line commences at the >tit;nu; 
 and runs throujrh the tirs; and second suhmarfrinal ceils and at the tips of the 
 latter it becomes confluent with a s]pot on the upiK-r martiin of the second dis- 
 coidal cell ; li'V's jiiceous black, with l)la<'k pubes<-ence. the tibia- and tarsi more 
 or less lint;('d with brownish ; abdomen short, broad ovate, or subulobose. ferru- 
 triuous, or honey yellow above anil beneath, closely and rather deeply punctured. 
 clothed with black jiubescence. rather thin on the larire basiil s«-<;nient and dense 
 on the apical marfiins of all the scfiments; the apex with a i>atch of ;rlitterin<r 
 grayish ochraceous jiubescence. the venter also spriiikle<l with a similar jiubes- 
 
 'uce; the node sometimes blacki 
 
 ruiiose, swollen at tip. with a iiromiiient 
 
 central carina beneath. Lenffth N.o-ll mm.: expau.s*- of wings II 1' 
 
 (Cressoii.) 
 
 Hill). — Coloftldo. 
 
 nnn. 
 
 K|>lia>ro|>hllialina hiNpida n. s]i. 
 
 .)/((/('. -Head traiisvt rsely rounded, narrowed behind the eyes, black, closely 
 (lunctured. clothed with erect black pubescence; mandibles and scain- of antennie 
 black, the latter closol.y ]iunctured, flanellum piceous: eye's large, round and 
 l)rominent ; thorax (doufrate ovate, narrowed jMisteriorly. closely luinctured. 
 thinly clothed with erect black hairs, nietathorax rouudly truncate, coarsely 
 reticulate; legs black, clothed with black hairs: winirs fuliginous, marginal cell 
 ovate, roundly truncate at tip, first submargiual cell a.s large .is the marginal, 
 second triangular, its transverso-cuhital nervures sinuate, receiving the first 
 recurrent nervure before the middle: a hyaline spot eouiiuun tu the third dis- 
 
Noinii AMKitK.vx nYMi:N<»rn:i{A. 
 
 L'27 
 
 ■. coiipifly 
 iiMtiinMl ; 
 lal iitMrly 
 t lurvurf 
 r«<l liliuk 
 uiutiintl. 
 <l tVrnini- 
 iit.s lilack. 
 
 I Sf^llU'llt 
 
 I. 
 
 ciiiilal anil st'CDiiil siihiiiarKiiiiil crlls, ti'i-iiiiniitint; in a ^trcuk, t'Xtciidinu !<• tlx' 
 lir>^t sii)>niurt;iiial cill ; tc^'ulir rixiiiil, iiolislitil ; alxIcinii'M nxiiiillv nvatf, linsal 
 M trniiiit |Htii>lulc. Mack. i-oarMly |>iin<'tiii'<'(l, cldllMil with trcci Mark liair«. 
 M'ciinil s('>:nicnt dark tVrni>.'iniiiis, lincly piini'turi'il. rlollicd willi lonj; fulvu- 
 t(irii>;iniiii.s piiht'scfncf, i'<-niuinin>; si'^nifnts hliii-k, densely clot lied with loii>{. 
 ciiarsc, Mack |iill>cscence ; ventral stirl'ace entirely Mack, secimd se;;ni<'nt finely 
 piinctiired, shining' Length !l nun. °, expan.se of wind's Ki mm. 
 
 Hul). — Colorado. 
 
 Tliis .^|HM'ir.>* is iillicd to .S". montlro/n ('ri'.x.«<oii, Ixit iiiiiv he s('|)iiriitf<l 
 liv tlic lu'iid iiiid tliorax lu'liii; hitifk, siiid tlii' vciitial siiif'acc cntifcly 
 so. and l)v the wiii-.'s Itciii;: tiili;.diioiis, wlicfcas in nioiifico/n tlicv arc 
 
 fuscous. 
 
 ,i *■ : 
 !;■'■ I 
 
 Uvil al)ove 
 lllx'.Mence : 
 !• tluL'ellum 
 with <-oarse 
 ■ alxiiit the 
 f the third 
 ir<:inal, the 
 first rectir- 
 S4detely de- 
 owartls the 
 fluent with 
 the -liiim,: 
 tips ot' the 
 second dis- 
 arsi more 
 >se. t'erni- 
 nnctiired. 
 anil dense 
 ilitterinji 
 lar luiltcs- 
 ironiinent 
 I 17 mm. 
 
 ick. closely 
 
 if'antennie 
 
 riiiind and 
 
 (iinctured. 
 
 '. coarsely 
 
 nrKiintl cell 
 
 e marfiiiial, 
 
 a the tii-st 
 
 • third dis- 
 
 Mpliit'roplithaliiiH ('HNfnr HIake. 
 
 Miilr. -Black ; head rounded, closely punctured, clothed with erect Mack liairs : 
 I yes round, prominent: thor;i\ eIont;ate sulii|iiadrate. anterior angles rounded. 
 chii'^ily punctured, thinly clothed with lone hlack puhescence. metathorax 
 roiiiidiy truncate, closely reticulate ; tet:ulii' round, polished ; wint.'s amiile. Mack- 
 isli, mai'Kinal cell elou;;ate suhijuadrate, trumale at tip, second sutimar^rinal suh- 
 trian^ular, wide heiU'ath, receivin;; the first recioTcnt a little liet'ore the middle, 
 third suhpcntanonal. so much mirrowed at hase that its extreme nervine is op- 
 po-ite to and joins the second recurrent; iei;s hlack, thinly clot lied with hlack 
 hairs ; alidouu'u ovate, petiohite, iietiole closely punctured, haviuu' a lon>;itudimil 
 carina on each side, clothed w ith erect Idackish hairs, disc dark ferruginous. has< 
 and at ' margin hlack. second se<rmeiit haviu).; the hasal half castaneons. apical 
 half ' ferruginous, apical margin and fidlowiui; se<;nients hlack. clnthed 
 
 with )lack imhesceuce ; loiiler side of second sediment castaneons. the ah- 
 
 doiiiimil fovea lar;;e and deei). LeuKth I',' Is nim. : exjianse of wind's 1!I-'_'T mm. 
 
 Hill). — KaiL-^a.-*, Texas. 
 
 Ill sonic individuals tlic petiole and hasal liiili' of. second aluloiniiiid 
 sct^iiicnt is entirely hlack. The neuratioii of the wintis in this spe- 
 cies is simihir to tliiit of S. coiitritctn di'scrihcd hv Sav. 
 
 Kpliicroplitlialina wni«u«r n. sp. 
 
 .Vd/c — Head tniiisversely rounded, hlack, tinidy punctured, thinly clothed 
 with mixed pale and hlack hairs; 'maudihlcs ami antennie hlack, eyes round ami 
 prominent; thorax ovate, closely iiunctured, hlack, metathorax rouinlly trun- 
 cate, coarsely reticulate, lateral declivities of the mesothorax .suiooth ami shininj; ; 
 le;ts lilack. thinly clothed with jiale hairs, as well as thorax heueath ; win;;s fulig 
 inous, marginal cell ovate roundly truncate at tip, first suhmarginal cell large, 
 pointed at ha.se and apex, second suhtriangular, ami having a faint hyaliiu' streak 
 longitmlinally through its entire length, and receiving the first recurrent uervure 
 hefore the middle; teguhe round, finely and remotely punctured anteriorly: 
 ahdonu'U ovate, hasjil segnu'nt petiolate, hlack, coarsely punctured, second and 
 following segments finely imnctured, feehly puhesceni with hlaek, fu.sco-ferru- 
 ginous, seeoiul segment paler on disc, apical margins fri iged with hlackish pulK?s- 
 
 ft 
 
 Iv 
 
 
 
 m 
 
 jF^rnTTrrrm^n*. 
 
228 
 
 CHAKLES A. BLAKK. 
 
 cence, except apex, which is pale yellow, lateral <-arin«p (if second seRmciit promi- 
 nent, ventral surface somewhat paler than aUive, apex black. Length 8-12 mm. ; 
 expanse of wings 14-2() mm. 
 
 Hal). — Kentucky, Colorado, >[oiitaiia. 
 
 Tlli^« spec'itw is allied to S. en4or Blake, hut can ea.>*ily be sepuruted 
 by the iibdoiiien being entirely, except ba.'ial segment, fusco-fernigin- 
 ou.s, whereaH in that si)ecies the apical segment-s are black. In .xonie 
 specimens the ])ubescence is entirely black. 
 
 Sphterophthalma renetttrmta St. F'arg. 
 
 Male. — Hlack ; lieatl and thorax with black piilH-srence ; vvings blackish, mar- 
 ginal cell truncate at tij): alxlonien |»etiolate, second segment pale ferruginous, 
 nearly nsiked, uiiical segments clothe<l with black putn'seence ; eyes round. 
 Length ll-i;{ mm.; exjiansi' of wings Ifi mm. 
 Hal).— Atlantic States. 
 
 Mphterophtlialina oehnu^a Blake. 
 
 Mule. — Black ; iiead, thorax and aUlomcr.. with exception of the first, ami 
 basal lialf of second segments. cli>thed with long, erect, (whraceous pubt'scence; 
 head round, closely punctured : eyes pn>minent. round. |M>lished ; antenna' black, 
 scape finely i)unclured : thorax robust, ovate, metathonix a))rui>tly truncate, 
 coarsely reticulate, fianks coars«-ly punctunnl ; wings fuliginous, margiiuil cell 
 short, trunvate at tip. three distinct submarginal cells, first longer than tlu' mar- 
 ginal, the second sub(|uadr.ite. receiving the first recurrent nervurc near the lta.se. 
 the third pentagonal, extending Iteyond the marginal : tegula- large; legs black, 
 clothed with black hairs: alxlomen ovate, txi-sal s«-gment coarsely ))Uiicturcd, 
 clothed with erect bhu-k hairs, second more moflerately punctured ; under side 
 black. Length Hi mm. 
 
 The female difiers in having the gi-u'ipture of thorax nnich coarser and the 
 puliescence somewhat paler. I>ength Vi mm. 
 
 Hill). — Nevada. ( Morri.-<in. i 
 
 This s])ecics closely re.-H*ml)les /<Mr^o/'» ('r»'s.-on, but may be distin- 
 guished by the smaller size of the h«id. 
 
 Nph roplitlialina creon Blak*-. 
 
 MnU\ — Ferruj'inous : head round. clo«<'ly punctun-d. thinly clothed with erect 
 black hairs; scape of antenna- ca»tane<»us. flauellum piceous ; eyes round, promi- 
 nent ; thorax ovate, densely laiiK-tiin-d. s;.<irs«-ly i-lothed with <'rect black hairs, 
 nielatliorax niuudly truncate, ciwrw-ly n-ticnlate : wings nuKlenite, fuscous, siih- 
 liyalinc from base to lK>yon<l the middle, nuirginal cell subovate. roundly trun- 
 cate at tip, three siibmargiual celU. Ne<-on)| .•iiibtriangular. rei'eiving the first re- 
 '•urrent nervure at middle, third narrowi-d >M-nealh. receiving the second rci'iirreiit 
 close to its apical nervure; tegula- rouiid. tufted |K»steriorly with pale hairs; legs 
 black, thinly clothed with vvbitish hairs; alNlomeii ovate, |ietiolate, ba.sil seg- 
 ment densely punctured, sei-nnd segment fulvo ftTruginous, darker at base, lineiy 
 and clo.sely pum'ture<! apical margin black, thinl. fourth and fifth segments 
 black, clothed with long bla<'k |<utie«Mx'nce. apical s«-gments with pale yellowish ; 
 ventral .segments fi'inged with jwle yellowLsh hairs; a|)ex with two sharp longi- 
 tudinal carina*. Length 11 mm.: expaiiM- of wings M mm. 
 Hab. — Texas. One specimen. 
 
it 
 W. <l 
 
 :,!' 
 
 NORTH AMKiaCAN HYMKNOI'TKKA. 
 
 220 
 
 N|»hferoplilliaIniu boxar Hhikc. 
 
 ^f(tll'. — liiiick ; lu'iul rouii(UM), not as wide as the tliDriix, closely puncturi'd, 
 thinly clotlii'd with er(>ct hlack hairs; aiitciinii' black, as Inn^ as tlic licai' mid 
 thorax: eyes round, prominent; thonix s(il>(|iiadr.it<-, slightly narrowed poste- 
 riorly, prothorax closely covered with confluent i)unctures. those on the nu'so- 
 tliorax finer; nietathorax roundly truncate, coarsely reticulated, dorsiil groove 
 not exti'uding to the middle; wings ample, fuliginous, slightly paler about the 
 middle, marginal cell elongate sub(|uadrate, abruptly truiu-ate at tip, first sub- 
 nia:-ginal lu'arly as large as the nuirginal, second receiving the first recurrent 
 lu'rvure a little before the middle, third pentagonal, its extreme ncrvure extend- 
 ing beyon<l the nuirginal; tegulie ovate, ))unctured; legs black, clotlu'd with 
 lila<'k baii-s; abdomen subpetiolate, lirst segment black, closely punctured. s<'coud 
 bright t'erruginims, finely |)unctured. thinly clothed with reddish juibescence ; 
 remaining segments blackish, punctured, clothed with black |)ubescence ; under 
 side of second seguu'iit bearing a sluirt longitudinal carina towards the ai)ical 
 margin, ventral segnu'uts same as above. Length !* T^ mm. ; expanse of wings 
 \'>''2l mm. 
 
 Hill). — Texas. 
 
 
 
 ?si 
 
 N|iliirro|>lithalnia wa<'o Hlake. 
 
 Fi'iiiiili'. -l^ark fuscous; head (|Uadrate. posterior angles rounded, not (luite as 
 wide as the tliorax, closely reticuiate<l, clothed with erect black hairs: scape of 
 antcniiic tilack, flagclluiu piceous ; mandibles black ; eyes round, polisbc(l : thonix 
 short. subt|uadratc, closely reticulati'd, mctat borax abrujitly truncate ; legs black, 
 ridthed with fuscous hairs, intennediate aixl jio-sterior tibia' armed with spines: 
 abdomen: liasal .stgimiit subsessilc with the second, closely punctured, clothed 
 with black hairs: second segment bright ferruginous, finely reticulated, clothed 
 with scattered ferruginous pubescence and a few black hairs at base; apical seg- 
 ments (lark fuscous, fringed with dark ferruginous pubescence ; under side che.st- 
 luit brown, coarsely puni ired, clothed with scatttuvd. pale, glittering hairs, 
 l.fiigtb 11 mm. 
 
 Hill). — T('xa.<. 
 
 Tiiki'ii oil .saiulv roads. 
 
 1 
 
 Npliirroplitlialiua ailiiirfiiN Hlake. 
 
 .l/'l^'. — Hi'ad and thorax blai'k ; lhefor:ner rounil. not as wide as the thorax. 
 iiiarsely |i\Mictured, thinly clothed with erect hairs; auieumi' black ; eyes roiinil. 
 prominent ; thorax ovate, narrowed posteriorly, coarsely puiutured. nu'tatluu'six 
 rmindly truncate, deeply reticulate; wings fuliginous, marginal cell short, 
 roundly tr\iucate at tip, second snbmarginal sulitriangular, its ba.sal lu'rviire 
 sinuate, re<'eiving tlie first recurrent nervure befoie the niidille. third submarginal 
 indistinctly defined ; legs black, thinly clothed with black luiirs; abdomen ovate. 
 petiolate, basjil seguu'iit blaik. coarsely punctured, second and follow iiig segments 
 dark ferruginous, closely puiutured, thinly clothed with, erect black hairs, nuii- 
 Uiiisof the .segments fringed with black imbcscence. Length Hi mm.; exiia .sc 
 of wings IM mm. 
 
 Hah. — Texas. 
 
 This luav he the male ot" »S'. loaco. 
 
 t.. ;>. < I 
 
 
230 
 
 CHAKLICS A. lU.AKl 
 
 Npliiprophthaliiia niacra ('i-csson. 
 
 Malf 
 
 -KloiiKiito. nittuT slender, hliick, with loiiji, dense, coiirse, Itluck jmln 
 
 cenee, and close, rather rouKh imiietures ; eyes small, round, eiitiri' and very eon- 
 vex; nianilihtes rufo-pieeous at hase : antennse liluek, the tlaKelliini sericeous ; 
 thorax slifiiitly narrowed liehind, tlni inetathoi-ax rounded, somewhat ahrujit 
 hehind and reticulate witli coai-se pnnctures; win>rs hlackish, with two or three 
 pale sti-eaks beneath tlie stiKina; nuirKinal cell broadly truncate at tip, not ex- 
 ceedinji ttie tip of the third suhnnvrfjinal cell ; two distinct suhmarKinal cells, the 
 fii"st about as lonji as the marginal, tiie second a little short, much narrowed to- 
 wards the niarjiinal and receivinf; the first recurrent nervuri' m^ar the base : third 
 sutimaru'inal cell subrhoml)oi(lal, indistinctly defined, the outer nervure being 
 ol)solete: legs black, with black pubescence; abdomen pt'tiolate, ovate, much 
 narrowed towards tin- iiyt. lilack, with long, dense, black ))ubescence above, shin- 
 ing beneath; large liasal segment above orange ferruginous, with pubescence of 
 the siime color and dose, rather deeii iiun<-turcs; the n<Mle nit her elongate, 
 swollen at tip, coarsely rugose, the l)ase depressed, with a short, stout tubercle oi) 
 each side; venter shining ami sparsely pulxscent, the .second segment closely 
 punctured. Length 11 mm.; expanse of wings l.'i mm. 
 
 \'ar. y. -Head and thorax black, with grayish imhoscencc ; abdomen more or 
 less reddish. 
 
 Hiilt. — Tixjis. 
 
 Cliwly tillifd to S. fnirsirnfd St. Fiifjr., (tlu' riii|)|M»si'(l miilf (if S. 
 fcn'Kf/iiln F*""al),) l)iit is distinct. 
 
 N|>liH>ro|»litlialiiia apioalata lilake. 
 
 ,U(//('. Mead round, black. clothe(! with pah' golden pubescence; antenna- 
 l)lack ; cvc-i round, prominc.it ; thorax coarsely punctured, pro- ami metathorax 
 clothed with scattered pale goltlen pubescenc*', the latter roundly truiwate. scu- 
 t<llnm black ; wings fuscous, jialer about the middle, nnirginal cell snblamvolate. 
 rounded at tip, tirst submarginal iis large ni-: marginal, second subtrian;.(ilar. re- 
 ceiving the first recurrent nervure aliout the middle, third extending as far as 
 the marginal; teguhe large; legs Idack, clol bed with pale glittering hair.s, calcaria 
 white; abdomen petiolate, petiole lilack, closely punctured, clothed with erect 
 silvi'ry hairs; .second segment ferruginous finely punctured, apical margin black, 
 disc clothed with scattered erect hairs, i uird, f lurtli and fifth segments clothed 
 with silvery pube.si'eiice, apex black ; under side same as above. Length 1 1 mm. ; 
 ex])anse of wings lit mm. 
 
 Var. 'I. — Second abdominal segmein entirely ferruginous; thiril, fiiurth and 
 fifth .segments sparst'ly clotbeil. 
 
 Hill), — Mc.xifo. I'rof. F. Suniichfiist. 
 
 N|>hH'ro|)litlialiiia caiiolla Hlake. 
 
 ..l/d/*".— Hlack ; In-ad mirrower than the Ihor.ix, siib(|nadrate. posterior angles 
 rounded, closely piinctureil. clothed with long black erect hairs, eyes large, round, 
 convex; antennte black, having the .scajte clothed with scattered l)lack hairs; 
 thorax subiiinidrate. narrowed posti'riorly, mesothorax elevat«'d, closely punc- 
 tured, metathorax roundly truncate, having the punctures much coarser and 
 denser; wings modenite, l>hickisli, paler about the middle, nntrgintil cell al>ruptly 
 truniutte at tip; three suhmurgiiuil cells, the second snbtrianguliir, receiving the 
 
i 
 
 XOHTII AMKUK'AN IIYMKNOPTKKA. 
 
 2:n 
 
 lii-st recurrent iiervure u little lietwre the iniddle. third, ohsdletely delined, ex- 
 tending i> little lieyond the iniir>;iTial cell; le^'s Mack, clothed with lonK hairs ot" 
 the same cdhir. tiliial spurs lonn; ahdonien ovate, Kradiuilly narrowed liehiiid, 
 liasjil s<'Knient nodose, coarsely imncinred : second seitnient shininir ferniirinons, 
 darker towards the hase, (inely |iun<'tnre<l, thinly (dollied with Idackisji hairs, 
 hitcral carina' distinct; apical sei;nients clothed with lontr deiisi , Mack pulies- 
 eence, under side of entire alidonien <'loseiy punctured. LeiiKtii T mm. ; expan.se 
 of wiii}is i:! nin\. 
 Halt. — Tcxn.-*. 
 
 MlihiProplillialina niHCilonta Hhtke. 
 
 ,U((/c. — niack ; head rounded, not as wide as the thorax. <losely punctured. 
 I hiidy clothed with erect hlack hairs; eyes round, iimminent ; antenna- lilack ; 
 liiorax rohust, >;ra.dually narrowed liehitid. (losely puTictiircd. thinly clothecl 
 with erect hlack hairs; nn'tathorax ahruptiy luunded ; wind's moderate, I'uii^in- 
 oM''. marginal cell hroad. short, and ohtiiseiy roundeil at tip. second sulimaru'iiial 
 suliipiadrale, not as larf,'e as the lirst, rei'eivinj.' the lirst recurrent nervurca little 
 liet'ore tiie middle, third sulimartrinal ohsolete; lejrs lilack. thinly chillied with 
 pale hairs, calcaria Ion;,', rut'o-jiiceous ; alidomen elongate ovate, liasjil segment 
 elongate, mu(di enlar^red at apex, shinin^r. closely punctured : second sc};ment 
 I'crriiKinoMs, shininji. finely punctnTd, ihinly clothed with erect hlackish hairs; 
 lateral carina' distinct, ventral surface having; a ci-ntral hlack line: ajiical sen- 
 Hieiits clos(dy fViuKcd with lon^' \tUu'k hairs. Lenjjth H.-'i mm.; expanse ot" 
 wiiiiis l'! mm. 
 
 Hill). — rfX!i.<. 
 
 Npliirrophtlinlnia ol>N<*iira Hlaki. 
 
 .l/((/c, -Ileiid hlack, rounded, clostdy punctured, clothed with oliseure Mack 
 and i;"l<len hairs; eyes round, i>olished ; antt nme Idack. scape liiiel.v puiiclured ; 
 thiuiix suliovate, narrowed posteriorly, closely pumtured. prothorax clothed 
 with ohscure yellow hairs, metathoiiix coarsely reticulated; te^Mihe convex, 
 punctured; winjrs ruli):inou.s, paler ahout th(! middle, marginal cell elonjiale 
 ovate . rounded at tip, first sal)niar;:inal moderately larjie, -eeond suhcjuadrit. 
 rccciviiij; the ■ •urreitt nervure hel'ore tlic middle, third ohsolete; leji> 
 clothed with hlack hairs, calcaria jiale ; al"loinen petiolate, hlack, closely , 
 lined, hi'ariin: a few erect hlack hairs; second and following .senmints dai n 
 hrowii. (dosely iiuiictured, apical mar>!in.s clothed with hlack puhescence, ajiex 
 liearint; a few ohscure yellow hairs. Leiiirtli s,,"! mm. ; expanse of wiiijis Hi mm 
 Halt. — .Miis.>4a('lHi.<(tt.<. ("ollcction of I'rot". .\tras.><iz. 
 
 K|>liH>roplitlinliiia KibboNa Say. 
 
 Mall'. Body hlack ; with iiunicroiis >rray, hut not eoncealiii).'. Iiairs; densely 
 piiiK lured, jiunctures larfre on the head and trunk; wiiifrs hyaline ; at lip ami 
 iiicliidintr the radial cellule, fiiliuinous ; stimiia iiiiHlerate; third luhil.al lelluh' 
 incomplete; ahdonien, first sejrmeiii peiiolit'orm. as loii>r as the seroiid ami some- 
 what >;ihh(>us iit tip, distiiiKnished from the.se''ond h,v a deep stricture. Length 
 over three-tenths of an inch, 11 mm. (Say.) 
 
 Hal). — Iiuliana. 
 
 H('S('iiil)l('.>* scriijti'o, hut is lai'ocr, lia.s a stij.Miia and loiitfor petiole ; 
 wiiiifs dusky at tip, and the petiole more gihhoii.s at tip. 
 
 
 »■!•' 
 
 fv 
 
 
 t*i- 
 
idisaiKMilMaHn 
 
 232 
 
 CHAHMCS A. ULAKE. 
 
 Npliirrophthnlina H'ilNoiii Cresson. 
 
 Mnlc. — W'v]) shining Mack; licad siiiitll, suhfilohosf, nvther densely clothed 
 with silvery eiiiereoiis jmlH-seeiiee ; eyes siiiiill, nmiided. prominent and olive- 
 >;reen ; antennH' blaek ; thorax elosidy punctnrefl, the prothorax broad and rather 
 densely clothed with silvery white ])ul)eseen('e as well as the jdeiira ; niesothorax 
 deeply pnnctiirecl. clothed with short black pulieseence ; scutelluiu clothed with 
 lonj; cinereous pnl)escence, with its anterior margin flattened, smooth and shiii- 
 inj;. anil armed on each extreme sidi' with a stout tooth, obtustdy l)ifid or con- 
 stricted at ti]>: postscuiellum silvery on the middle and si<les: metathorax cov- 
 ered with niimeroUK interlacinj;. well defined carina- with apjiressed, silvery 
 white pubescence ; tejjuhe lilack, polished ; wind's hyaline, the anterior pair witli 
 a median transverse band, antl tiie apical fourth dark fuscous ; nervures blackish, 
 marginal cell short, truncate at tip; two comidete submaruinal ctdls, the Kecond 
 largest and receiving the first recurrent nervure near the l)ase : posterior wing.s 
 hyaline. slif;htly dusky at tips: lef;s slender, black, clothed with whitish juilies- 
 cence ; apical sjjurs of four posterior tibia* loii>i and whitish : abdomen black, the 
 first segment small, narrow at base and swollen at tip. roufilily i)unetured, with 
 a small tubercle oTi <'ach si<le of the base and middle; apical nuirgin den.sely 
 clothed with silvery white pubesci'iice ; second se'.'meMt large, convex, shiniii}; 
 black, finely idinctured, clothed with black pube.scenci-, the basal third with 
 silvery white i)ube.scence ; third an<l fourth sennients densely clothed with silvery 
 white pubescence, the remaininj; segments with dense black iiubeseence. Length 
 !)..") mm. ; expanse of wings lf< mm. (t're.s.son.) 
 
 Hal). -Cii 1)11. 
 
 Npliu'roplithuliiin aztova Blake. 
 
 .Wd/c. -Black ; head not as wiili^ as the thorax, subiiuadrate. clothed with dense, 
 pule golden pubescence; antenme anil mandibles black ; eyes round, prominent: 
 thorax robust, narrowed posteriorly, pro- and niesothorax rujrose, the former with 
 ])ale Koideu |inbesceni'e, the latter elevated, metathorax coarsely reticulated, ab- 
 rujitly truncati' behiTid ; wings fusco-hyaline. marginal etdl short, abruptly trun- 
 cate at tip, first siibniargiiuil about as large as marginal, second receiving the first 
 recurrent ucrvii.'' a little before the middle, tiiird about eciual to the second 
 and extending a little beyond the nuirginal ; legs petiolate coarsely i)unctured, 
 clothed with scattered, erect, whitish haii-s; .second segment rugulose, with a 
 broad band of jtale golden imbescence at the base, jiosterior half clothed with 
 black, third and fourth segments clot heil with pale golden imbe.scence, ajiex black ; 
 underside of second segment finely jiuiU'tured. thinly clothed with pah' hairs; 
 margins of ventral segments fringed with pale golden imbescence. Length 12 
 mm. ; expanse ef wings 1(> mm. 
 
 Hah. — Mexico. Prof. F. Suiuit'hrii.^t. 
 
 This spocit's is (.-losely allit'd to ]nf.'<oiii ('I'cssoii. l)iit nmy he (li.>;tiii- 
 Uiiislied hy the large si/e of nhdoiiieit aiul the elotliuiLT, whieh is much 
 more dense, and the clouding of the wings, which is more .«utfu8ed ; 
 the margins of the fuscous portions in Wi/miii heing sharply defined. 
 
 Nphtprophthalina inoutezunia' S))in. 
 
 /Vi/Ki/ti.-lIead black, with black hairs, front and vertex clothed \\'.'h dcpre.s.sed 
 reddish golden pubescence; antenna' black ; thorax bhuik, with black hairs, the 
 doi-Hum clothed with dei)re88ed reddi.sh gohlen i)ubescencc ; abdomen bhiek, ven- 
 
 *'i!lj 
 
XOHTII AMKKICAN MYMKNOI'TKKA. 
 
 283 
 
 tral scjiinonts friiiKi'<l with silvery iiubescpuce ; first scgnu'iit above clotlicil u-jtli 
 hliick hairs; the reinaiiiiiij; segments clotlied with dejiressed reddish nohh'ii pii- 
 hcsceiice ; leRs hhick. with black hairs, spines bhiek. F,eii^th !• nun. 
 
 Hal). — Mexico. 
 
 Mliliierophtlinlina inelaiiOMOina Hhike. 
 
 /•>)/i///c. — Deep black, liead rounded, witli narrow lunate band of pale golden 
 liubescenee between the eyes; antennie black, scape clothed with fine j;litterin>: 
 hairs; eyes round, prominent ; thorax siib(|uadrate, narrowed posteriorly, coarsely 
 reticulated, anterior angles armed with a short tooth ; mesotliorax with two sub- 
 iivalc spots of ])ale golden pubescence, behind which, on the metathorax, are two 
 narrow longitudinal lines of the same; legs black, thinly clothed with glittering 
 white hairs, intermediate and jMisterior tibite armed with a row of s]iin(>s. calcaria 
 wliite. tii)i)ed with brown; abdomen ovate, clothed with dense bhu'k pubescence, 
 second segment with two small, ovate, dusky fulvous maculie at the base, and 
 tw<i larger ones of the same before the apical margin, on the middle r)f which is 
 a small round sjiot of pale golden imbescence. the a)Meal segments adorned with 
 a row of similar s])ots ; ventral segments and lateral sutures clothed with pale 
 irolden pubescence. Length Ki mm. 
 
 Ifiil). — Fanaiim. C'ollot'tion of Mr. Norton. 
 
 Npliwroplitlialina iztapa HIake. 
 
 ,!/((/(■. — Hlack ; head round, not as wide as the thorax, clothed with coaj-se ful- 
 vous pubescence; antenna' and mandibles black ; eyi's round. i)rominent ; thorax 
 >liorI, dilated at middle, pro- and disc of metathorax clothed with coarse fulvous 
 pubescence, the latter roundly truncate, coarsely iiunetured. clothed with long, 
 pale, erect hairs; wings fuliginous, subhyaline at middle, marginal cell subovale. 
 .ibru|itly truncate at ti)). second submarginal elongate. |)ointed towards the base, 
 near which it receives the recurrent nervure; teguhe n.'und. finely punctured ; 
 le'is black. clothe(l with jiale hair, calcaria long: abdomen ovate, second segment 
 tinely puncturi'd. with a broad, lunate, iiolislied. dull yellowish band on the disc, 
 liearinu a thin scattered jiubescence. posterior margin and third segment clotlieil 
 with black i)ube.scenc<', apical segments clothed with pale fulvous: underside of 
 entire Insect sprinkled with pale hairs. Length 115 mm. ; ex )ianse of wings ;.'.'{..") mm. 
 Hill). — Honduras. Collection of Mr. Norton. 
 
 This may prove to lie the male of jiroxrr/iliKi. 
 
 ^ipliicroplitlialiiia proMorpiiia HIake. 
 
 Female. — Hlack; head round, not as wide as the thorax, clothed with dense 
 liriglit cupreous pubescence; antenna' and mandibles black : eyes round. |ironii- 
 iient ; thorax robust, subquadrate, sides produced into an ol)tuse tooth, anterior 
 angles acute, mesotliorax black, rugose ; metathorax abruptly t luiieate behinil. 
 ilotlicd with dense bright ferruginous pubescence, having a ceniral blaek patch 
 on the posterior surface ; legs black, tinely punelnred. clothed with silvery liaii>. 
 intermediate and jiostcirior tibiie armed exteri(U'!y with long sharp spines; ab- 
 domen ovate, closely punctured, basal segment dentate at ba.se, seeoiid segment 
 with four pale luteous spots, thinly clothed with pubescence of the same eolor. 
 the two at the base round, those near the apical margin ovate, the fourth .segment 
 and the sides of the others clothed with |)ali' golden pubescence; lateral carime 
 distinct ; underside of entire insect clothed with pale hairs. Length \'i mm. 
 Hal). — Hondnra.-*. CoUeetion of Mr. Norton. 
 
 '«;« 
 
 W ', I 
 
 ■ n' 
 
 li. 
 
 
 J 
 
 TKANS. AMKR. KNT. SOC. XIII. 
 
 :«)) 
 
 HKI'TKMItER, IK'^rt. 
 
 " 3 ' .jiii f - ^n iiii^w ta 
 
'2.'!4 
 
 CIIAIJI.K 
 
 l!I,.\Ki: 
 
 Nplneropiillialiiin uiixtiini HIaki-. 
 
 Fcmiilr. iMTiMitriiiiMis ; licad rimtid, scan-fly a^ wiilr as thorax, vertex clntlicil 
 with pale Kiildeii |iiil(eseeiice : eyes |iniiiiineiit . tlanellmii of antenna' fuscous, 
 slijihtly pniinose. ti|(s of niandihles Mackisli: titorax suhovate, narrowed poste- 
 riorly, clothetl aliove with |)ale ^'oldcn puhesceiiec ; nietathorux olili(|iiely trun- 
 cate, flank 
 the tarsi I 
 
 s coarsely piinclure( 
 
 I: I 
 
 esrs 
 
 thinh 
 
 )thed with wiiite h 
 
 spine; 
 
 >lacl 
 
 lack; aliiloiiien (<vate, closely |)iiiictiired, thinly clothed with mixed 
 and yellow liairs, apical lialf of second segment pale ferrnninous, margin 
 
 Idacki 
 
 apical niarjiin aliove and lieni'ath frinjred with ;ilitterin;; whitish hairs. 
 
 l/CNKth 7 niin. 
 
 1 I.I). — ( 'olofildo. 
 
 S|>lia>r»|>lillialma <'r<>Mj>(oni HIake. 
 
 /■'I'liiiilr. liliiik : clothed with dense jiolden pnhescelice : head silhiiuadrate. 
 somewhat narrower than the thorax, posterior annlcs ronnded ; antenna' rufo- 
 fiiceoMs. llairelliim clothed with scatteri'd tjlitterini; hail's; eyes in-omiiient. pol- 
 ished, rounded ; thorax suliovate. narrowed iiosferiorly and abruptly 
 
 trnncate. mesotliorax with lateral <'arinie. disc black, coa 
 
 rsely >;rann- 
 
 ^ lati'. with a few siattered hla<'k hairs and marKiiH'd with dark jroldcn 
 pubesience; abdomen ovate. dee|ily pnnctnred. basal sei;meiit black, 
 the apical mari;in t"rini,'ed with jiale pnlH'scence, second sejiment with 
 two ovale fiilvotis spots at the ba.s;il margin and a broad anterim'ly 
 emarjiinate band of the sime I'olor iie.'ir the apical maririn. clothed 
 with deep ;rolden pnbesceTice ; third an<l I'orirth seninents black, with 
 a loniriindinal line (d' paler jinbeM'ence, forming' the black ^'ronnd into 
 
 Ihed entirely with pale 
 
 
 t \Mi lat<ral (|na( 
 
 I rati 
 
 ^pol> 
 
 (ifth 
 
 1 and sixth se;;mi'nts clo' 
 
 fliddeii pubescence, apex black ; ventral scfimenls I'riiiired witli pale t;<>l<b'n hairs; 
 l('i;s l)lack. internu'diate and jMisterior tibia- armed with a row of spines and clothed 
 with lonj; pale hairs; entire insect lieiieatii clothed with loiij: pale ulitteriiifj 
 hairs. I.eiiL'l h I!i mm. 
 Hill). — Mcxicn. 
 
 M|>lia>r4>|>lillialiiia \orloai |{lak< 
 
 /•■/ 
 
 Head rounded, wider than the prothorax. iiosterior an;;les more acute 
 
 than in the preceding,' s|iecie; 
 besceiice. interspersed with 
 
 larsely |)iinctiired, clothed with short tiolden (ill 
 ;.cr hail's ; antenna' black, naked ; evi's round. 
 
 3 
 
 prominent, polished; thorax black, narrowed posteriorly, somewhat 
 coiistricti'd, coarsely punctured, with a broad discal liand clothtd with 
 a|ipressed. britibt golden pubescence, metathorax slightly truncate, 
 sides clothed with a dense silvery pile; abdomen ovate, coarsely |)Ulic- 
 tured, basal sejinieiit clothcil with jialc ;rol(ien pubescence; second 
 senmcnt with four oransie spots, clothed with a scattered Kohh'ii iiii- 
 bescence, the two at the basjil ma refill subtrian^xiilar, those ou the apical 
 margin are lar>;<'r and nearly Joined tofrether, third ami fourth .sejt- 
 melits black, fifth and sixth with uolden piiliesceiice, apex lilack ; 
 ventral -etiments friiiKed with Ion;: pal;- hairs; le;:s black, middle and posterior 
 tibia' and tarsi I'lothed with silvery haii-s. those on the tarsi bein^ lonK<'r and 
 
 w 
 
 ^ 
 
 much more 
 
 dense; under side of thonix and abdomen clotlied with obscure 
 
 grayish hairs. LeiiKtli IT mm. 
 
 Ilttl).— Mfx 
 
 1C(». 
 
NoHTlI AMKHK'AN IIYMI;N( )I"n;KA. 
 
 •i:?.") 
 
 Clust'ly iTsi'iiil)l('s S. Crrssoiil, l)iit is rciitlily distiii^niislu'd hv the 
 hamls nil tlic tlmrax aiid hy the less robust furiii. 
 
 N|»lii«>ro|>htliHliiin foliira Hlaki . 
 
 /•V(/i,(/,'. — IJhuk ; licad loiiiidcd, clnllnd with dense, pale, ixliraeedii.s piilies- 
 <<nce: antemin' Idack : eyes rimiid, |ii-,>inineiit : tlmrax ovale, iiairowicl poste- 
 riorly, elol lied with coai-se, lilaek. iiie.so- and iiietat lioiax with eoarse 
 oeliraceoiis pnlieseeiice, sides of the latter Mack, aliniptly Inmcate; 
 lev's Mack, elotiied with scattered ),'litIeriliK hairs, iiiteniiediate and 
 posterior lihia' armed with spines; alxlonien ovate, hasjii se>,'nient 
 
 clothed with pale hairs; s( tid set;ineiil closely punctured, having 
 
 two small ovate spots at the liase and a hroad, internally cniarjiinate 
 
 H^^l hanil ot" coars( hraeeous puheseence. |ioinied towaril> the ajiex ; apical 
 
 ^^ sei;ments ilotlied with similar ]iul)eseence ; under >ide ofeiitire insect 
 '^ i-lothed with pale hairs. Lenjith 11 mm. 
 
 ■Mexico. I'l'ot". F, Siiiiiiclirast. 
 
 9 
 
 Ilal..- 
 K|tliit'r«>|>lillialiiia liitooln n 
 
 /••/ 
 
 Head hlack, roundt'd, not i|uite as wide as tiie tiiorax. c 
 
 loth 
 
 rtex with pale •icdden pidiescence, front and mouth densely, with pale luti 
 
 piilx 
 
 lund 
 
 and prominent : antenna' fu>coiis 
 
 leeks tinelv 
 
 ncl eontlueiiily punctured ; th(uax ovate, hlack, closely iniiictureil, clot lied alx 
 
 iiulieM-elii 
 
 with pale jjoltleii pii 
 clothed with white puliescci 
 
 melatliorax ol)li(|iiely truncate, its posieriiM- snrfac 
 e : lef;s ni^rro-eastaneous, clothed with ioiii;. ulitti'i 
 
 white hairs, femora very finely and remotely punctured, intermediate and 
 
 isterior tibia- armed with fuscous spines; ahi 
 
 ■II hlack, ovate, basal 
 
 -e^iliieiil 
 
 canipaniilate. short and sessih with the second, its apical niar;;iii t'rinifed with 
 dense, pale, liiteoiis plllu'scence ; second segment coarsidy ret iciilate and clothed 
 with lilack piibescenci', its apical margin and remaining seu'iiicnts denselv elotiied 
 with iiale ;_'oldeii pubescence; ventral surfaie tiiiely punctured, the apical mar 
 i.'iiis fringed with wliite pubescence; entire insect sparsely clothed with loim 
 uditterini; white hairs. Leii>;th 10 \:l mm. 
 
 Hall. — I till), Kansas. 
 
 Tliis s|K'cifs is jillicd to N. tn/iira liltikc, '> it diti'crs tVoiu tlitit liv 
 tile idisfiict' of the |illlu',scciit spots. It liiiiy |tossil»ly piovc to he tlic 
 t'fiiialc ot' N. finrlild. 
 KpliiProplithaliiiH ariudiK' HIake. 
 
 Friiiiilr. —Head rounded, not ijiiite as wide as the thorax : black rii.'ri>. . v.itli a 
 
 few scattered erect hairs; anteiiiue black; eyes round, polj>lied ; thorax sinut, 
 
 suddenly narrowed btdiintl, clothed with bri>rlil Koldeii pnhesceiii'e; iiiesnthorax 
 
 with a triangular black, >;ranulati' patch; mesothorax alirupily trim- 
 
 ate; sides deeply compressed, coai-sely puni'tiired, clothed with >i 
 I'jis black, clothed with scattered silvery hairs, ii 
 
 ver.v puheseence 
 
 ttTiiiwIitite »n(l posterior tibiie armed exteriorly with a row of spines; 
 
 •^ 
 
 ilxlom 
 
 ovate, basal segment black, its apical mar>;in ilotliid 
 
 with 
 
 silvery puheseence; second sej;nieiit coarsely punctured, clothed with 
 bri^l't K"ltl*'" |>iilHweeiice. having on thedisi' a larKe ovate black pat<di 
 exteiidiliK to the Iih.shI mar^'in, on each side of which is a small one of 
 the siinie color with thin black pubescence; apical margin black ; third 
 
 and fourth sfKnient.s clothed with deiise l)laej« i>ul)escence, lit"tli lirijjht k«>1<I''I 
 
 •if 
 1' 
 
fMmt-, . «».. 
 
 'im 
 
 <'HAH1,I>< A. HLAKK. 
 
 i>l«'X l)lack ; iimlcr side hlack, clusfly piiiictiircd, vciitr.il sc^imi'iits friii;,'<Ml witli 
 |iiilc );i)l<l'.'ii mixed with silvery luiirs. LfiiKth 7 11 nun. 
 
 Halt. — Mexico. Prof. F. Sllllli<•ll^l^*t. 
 
 In sonic specimens the head is clothed witli a lU'iisc L''ohleu inihes- 
 
 cence. 
 
 Mplitrroplitlialnia Nolola lilakc 
 
 Fi'iiinlf. — Uhu'k : hciwl roiindod, dcnst'ly cliitlicd with cuarsc, deep golden im- 
 lii'sccnic : iintcnna- l)lHck : eyes round, prominent ; tliorax sliort, clothed similar- 
 to the liead, except a round l)lack patcli (ui the disc ot' mesothorax, wliii'h is lat- 
 cniliy ]priiduced into ol)tnse angles, metathorax abruptly truncate hehind: legs 
 hlack, thinly clothed with pale hairs; interiue<liate and posterior tibia' armed 
 exteriorly with a row of stroii}; spines, calearia lilaek : alxlomeu l)roadly ovate, 
 I'losely punctured, hasal setrnient small, second segment havinjr a hroad emar- 
 ;tiuate hand of deep >;olden puhesceni-e at its a|)ical margin and two round spots 
 of the same cohu' i)laced laterally near the hase ; tliird se>.'ment clothed with 
 deep lihick, apii'al senmeuts with pale t;olden puhesceiice ; under side coarsely 
 piinitured, lateral carina' distinct, ventral sejiments friu>;ed with jiale K'itterinu 
 hairs. Length 7 H..') mm, 
 
 Ilab. — (iiiiiteniahi. Prof. F. Siunichi-tist. 
 Closely tillied to S. ('rr.'<soiii. 
 
 N|»liH'ro|ilitlialiiia aracliiioideN Smith. 
 
 Fi'imilr. lUack ; densely ijuhe.scent, that on the head ochraceous; thorax and 
 lejis covered with ochraceous |)uheseenee, the former having' a larj.'e 
 
 Q^ 9 rounded patch of hlack c)n the disc : the abdomen is also covi'ri'd with 
 
 oi'hraceous pubescence, the .second se<rment havinii a large triio))ate 
 black |iubescenl patch, which extends from the basal to the apical 
 
 ._ ^ mariiin of the segment ; the fifth and sixth segments are eovi'icd with 
 ^^^^\ black pubescence, the sides being pale. Length \'.i mm. 
 
 Hill). — Mexico. 
 
 A vtTV distinct and well niiirkcd species. In the series 
 lu'fore nie tin- individiuds varv in lenirth from 11 nnn. to 14 mm. 
 
 (( 
 
 W 
 
 NpliHToplillialiiia f'oriiiOMa HIake. 
 
 /•Viii'i/c. Head tjuadrate, slightly wider than the thorax, clothed with dense 
 bright golden iiubeseence, interspersed with erect hairs of the same color; an- 
 tenna' pieeous, numdihles nifo-])iceous, tijis black; eyes round, ]ironiinent ; tho- 
 rax short, subovate, finely reticulated, anterior margin fringed with deeji golden 
 pubescence, behind which is a lunate patch of brownish black, ai)ical 
 •' ^' half clothetl with glittering pale g(dden jiile, metathorax roundly 
 truncate, with a small obtuse black tooth on each side; sides of thorax 
 clothed with silvery pubescence ; legs rufo-piceous, clothed with glit- 
 tering silvery hairs, intermediate and posterior tibia' armed with a 
 row of spines, jiosterior fi'inora with an acute tooth, calearia jiale .■.el- 
 low tii)ped with brown ; abdomen ovate, apical margin of basal seg- 
 '\"" ment clothed with silvery i)ube.scence, second segment clothed with 
 
 glittering, pale golden pile, with a round patch of black pubescence at 
 the basi', connected with the apiail margin, which is of the .same color, by a nai- 
 
NOKTM AMKHK AN II YM I:N« il'TKHA. 
 
 237 
 
 row line, tliiril and fourth sc^tiuciits clothfil witli pale, the t'lftli witli diirk utihlni 
 imlifscciu'c, apex lilack ; under side closely piinetured. thinly rlothed with silvery 
 haiiM, lateral sntures frinjied with silver, ventnil st-jmients same as ahove. 
 Length ().r)-l'2 mm. 
 
 Hill).— Mi'xico. Prof. F. Sniiiichfii.<t. 
 
 N|»lit«*ro|>lif lialiiia balopiliiM Hlake. 
 
 Female. — Head <iiiadrat('. wider than the thorax, posterior angles siiliariiti', 
 clothed with dense golden |)\il)esc4>nce ; antenna' nito-pieeous ; eyes round, iironii- 
 nent ; thorax snhovate, (dostdy reticulate, narrowed posteriorly, clothed with 
 jroldeii ))iiliesceiice. luesothorax witli a snltcordate lilack jiatch on the disc, meta- 
 tliorax ahriiptly truncate: letrs rufous, thinly clothed witli tine, ulitti'rinj.' hairs, 
 caleiiria pale; alidoiuen ovate, second sejriiu'nt thinly clotlied with ulitteriuf 
 pildeii pile, on the disc is a round, hrown-hlaek s)>ot coiineetinn with the ajiical 
 liiariiiii. which is lilack. reiiiainiii); sej;ments clotlied with aolden inihescence ; 
 ventral segments frinj;cd with pale hairs. Lenzlli s-lo nini. 
 
 Hill). —Mexico. I'lof. F. Siiiiiiclifii^t. 
 
 -4 
 
 I 
 
 "'I 
 
 with 
 ohate 
 apical 
 
 with 
 
 N|»lit<[>ro|»litlialiiia altaiiiira Hlake. 
 
 Female. — \\vi\i{ rounded, not as wide as thorix, clotheil with hriuht vroldeii |>u- 
 hesceiice. interspersed with erect hairs: .inteinisc and niandihles lilack: eyes 
 round, prominent : thorax short, slightly <lilated at middle, closely reticulated, 
 anterior an-iles acute, iMcsothorax hlack, iiietathorax aliruptly truncate, clothed 
 with hriirht ;_'olden piilieseeiice, a round hlack spot on the disc, on each side of 
 which is a small tuhercle: lej.'s hlack, thinly clothed with silitterinf; hairs: aU- 
 ddinen ovate, narrowed to apex, hasal se^rnieiit hlack. closely punctured, apical 
 margin I'hithed with hrijiht. pale K'd<len iiilhesceiiee : second se^rmeiit thinly 
 clothed with ulitteriii); golden imhescence, hoarinn on disc a larye suhtrian^jular 
 hlack patch, helow which the tegument has a pale rufous tin;;*' : apical margin 
 friuL'ed with silvery puhescenee, third segment lilack, apical se;;meiits aloriiccl 
 with pale jiolden imhescence: lateral sutures friii^ted with silvery pile ; under 
 side dark ferruginous. lA'n;rth H..") !i mm. 
 
 Hal). — Mi'xico. Pfot". F. Suiiiiclii-a.-'t. 
 
 dense 
 r: an- 
 tho- 
 iolden 
 apical 
 lundly 
 honi.x 
 1 jilit- 
 ivith a 
 lie;. el- 
 Ill seK- 
 1 with 
 Ince at 
 a nar- 
 
 rh 
 
 Npliiproplithalma xaliNco Hlake. 
 
 Female. —Head round, not a.s wi(h' as tlionix. clothed with hri^lit >;oldeii imhes- 
 cence ; scajK' of anteiinii' and maiidildes rufous, tips of the latter hlack ; eye.s 
 round, larfie. prominent: thorax short, suhovate. closely reticulate, 
 mesothorax hlack. metathorax clothed with hri^rht >;oldeii puhescenee, 
 roundly truncate heliind: leiis riifo-piceoiis, clothed with scattered 
 ulitteriiifi liairs, interniediate ami posterior tihiie armed with spines, 
 calcaria white; ahdomen ovate, l)asiil senment clothed with silvery 
 puliesccnce on its apical niartrin, second sejrment hlack. having a hroad 
 liami of tine, golden puhesctmce. sliijlitly contracted at the middle, 
 third with a small central patch of pale pubescence, following scKnient.s 
 similarly (dothed ; under .side (hirk chestnut hrown, irrejjularly punc- 
 lureil. Lenjfth ,")..V<)..') mm. 
 
 Hal).— Mexico. Prof. F. Siiiiiichra.«'t. 
 
 iJ 
 
 t 
 
 ol 
 
2.'?S 
 
 ('U.\KLF>* A. HI.AKi: 
 
 N|>liii>ro|>liflinliiia I'Ikei Cnssun. 
 
 /V/(irt/c.-- Head liir>;c, liroadcr tliaii the tliorux, Mack, densely and coarsely. 
 |)iinctured, with a very line, apprcssed. silvery pile, Klillcrinj; in certain liKhts 
 and a >parHe, erect, lilack imlieseeni'e ; on the elypens the pnlH'.scence is Inn; 
 
 • lei 
 
 ise and I inuid with rei 
 
 <ldish 
 
 sinal 
 
 ded. 
 
 entire and convex ; nian- 
 
 ilil)les lilack, red ai liase; antenna- piceous, the Ihiiicllnni sericeous, the scapi 
 
 •iothed will 
 
 ilvery puhescence ; tiiorax hroad and truncate in trout, narrowed 
 
 l)ehin(l, coM'red with dense, larne punctures, and ilolheil with a sparse, erect. 
 
 hla<k pul)esc( 
 
 disk of inetathorax rounded otl' with a central patch of 
 
 very cinereous pnUesccTice, tlic iiosierior face flattened and stron>;ly tiiifjeil with 
 retldish ; sides of tlie thorax with a very ileiise. line, appressed, silvery cinereous 
 pile, especially in the excavations: h't;s piceous Idack, with a loiif,', thin, cinere- 
 ous |)uliescence ; posterior tihia- and tarsi rufous, the I'onuer with a doiilile row 
 (»f lou); lilackish spines: tips of tarsal Joints >pinose and Idackisl 
 
 llxh 
 
 ovate. ferru;rinous. densely and coarsely puintiired. the larK<' ha.sal sejiineni tinueil 
 
 with lioiiev V( 
 
 especially ahove ; the whole ahdonien has aliove a sjiarse, 
 
 rather lonii, erect, hlackisli puhescence : heueatli. the puhescence is cinereous and 
 very <hiise on the apical seirnients: ahove, the apical inarj;in of the small hasal 
 segment a snholisolete patch c)ii the hasal middle of the larye ha.sal segment, e\- 
 teiidint.' narrowly to the api'X. and a patch on middle of the remaininj; segments, 
 all of silvery cinereous puhescence: tile node moderate, of nearly e(iual width, 
 much depressed, tinned with fus<()Us, and a rather lar^e, olituse tuherele on each 
 side at hase. I.ennth I'J mm. 
 
 Mill). — (api'St. Liicjis, Lowrr California. 
 
 N|»liii>ro|>litlinliUH iiiKri<'«'|»N C'res,son. 
 
 /•Vm((/c. Head black, clothed with dense, hlaek puhescence, that alioiit the 
 mouth, as well as the mandililes aiul i)alpi, piceous; antenna- piceous, hasal Joint 
 Ion;; and slightly curved, second small and suh);lohose, third thrt-e times as lon^; 
 as theseccuid and widened at ti|i. the nine followiiifi Joints suhei|iial, each shorter 
 than the third, slijihtly iuv(dute. compres,sed and widened in the middle and 
 narrowed towards the tip. which is pointed: thorax hroader in front, rufou.s. 
 covered with lar;,'e, deep. rouj;h, i-ontluent pumtures and clothed with lon;i, erect, 
 ochraceous puhescence. that on the anterior marjiin hlaek and rather dense; on 
 each side hehind the middle two ratlier lar^'e. ohtu.se tuhercles, the iiosterior om-s 
 placed on the lateral has<- of the metathonix, which is narrowed towards the tip, 
 convex and Ki'ii'lmiH.v sloped liehind. the sides ahrnpt and densely piihescent : 
 le>;s piceous hlack, densely clothed with ochraceous puhescence, very lonn on tile 
 fi-mora : the tihia- with a row of huij;. acute, hlrtck s|)ines: alxlomen ovate, eon- 
 vex : tirsi segment small, campanulutt-, hlack, densely clothed with long and .short 
 ochraceous pnhescenei-; second segment large, rufous, ronglily ami conlluently 
 puncture<l. th<^ ha.siil half ahove with a large hlack mark, deii.sely clothed with 
 hlack puhe.sci-nce. with the |)ost<'rior m.irgin lohed on the middle, rest of the si'g- 
 inent clollu-d with short ochnieeous puhesct-nce, and on the apical margin a hand 
 of dense ochraceous puhescence, sometimes with u transverse patch of hlack pti- 
 Ix-scence on each side of the middle: tliird .segment densely clothed with ochra- 
 ceous i)uhescence, with a slight mixture of hlack on the ha.sal middle : remaining 
 segments denst'ly clothed with hhu-k inihescence. Length TJ- 1.") mm, (Cres.s(in. ) 
 
 Hal). — Cuba. 
 
NOKIII A.Mi:i:l(A\ IIY.MKNdlTKUA. 
 
 2:;il 
 
 N|»lii«>ro|)lillinliiiii l-Kiittiita Sav. 
 
 /■ViK/i/f. - Head niiiiKlcil, as wide as the tliDtax, l"< riiiciiKius. liiicly iiiiiii'Hind, 
 rlotlitd witli a|(|irfssc(l i-t'<l(lisli yoldiii |hiIk'S(<-iicc. Iliiiily iiitcrspfrscd with riict, 
 fiisciiiis hairs; anti'iina': scaiic testaceous, lliiely i>mi(tiired, eh)thed wilii reddish 
 tfoideii imhcsceiiee, llaKelilllii I'liseoiis ; I^.im of iiiaii<lil>les testileeniis. tips hhlek : 
 liead ht'iH'itth <'h)tlie<l with ioii^ paU' i).iirs; eyes ruiiiid, prmniiieiit and polished : 
 thorax ovate, narrowed posteriorly, I'erruyiiioiis ; elo-ely pnneliired and ilolhed 
 with appn's.sed reihtish ;;ol(|en pul)eseinee ; nietatliorax aliru|illy truneate and 
 liavint! on each side a small, mnniled, polished tnlienle. and three niiniile. trans- 
 verse, elevated ridjres on the disc; lateral excavations snioolh, shining'; leiis t'er- 
 rUKiuoiis, clothed with pale itlitlt'rin^ hairs ; knees and tarsi t'nscons, intermediate 
 and posterior tihia' armed exteriorly witli .>piin's; ahdonien ovate, hasai se^Tnent 
 rnl'oiis, or riiro-tiiscoiis, tliinly clothed with ei'ect pale hairs; second sejiment 
 Idack, closidy and linely piinclnred, clothed with line, appn ssed, hiack piihes- 
 ceiiee, and having; two larire, ovate. Iiilvon^ spots liet'ore the apical margin ami 
 two dl'thi' same cidor, lint smaller, at the hasal margin, remaining secnients 
 Mack, iiavinn the apical Tnaryins t'rin^reil with pale ytdiowr^h pnhescence : ven- 
 tral .>urtilce of second .segment testaceous. Lenixtii !• 1 I nun. 
 
 Hal).— Trxii.s. 
 
 Ill some spcciiiiciis the lui.sil iilxloiiiiiiiil scoiiiciit is hlack, and witli- 
 niit the two f "til vol i.< spot,"* at l)!isal iiiaruiii of sccoiid .^coinciii. 
 
 MpliirroplitliHlniii fVitj;i<lH Smith. 
 
 /■V»i<//c. — Ferruuinous. closely punctured; head snlxpi.tdrate. wider than the 
 thorax: the (iaiiellnm. except the three hasal sejrnients. the eyes and lip-- of the 
 
 mamiihles t'uscous ; tliorax oliloui; ipiailrati 
 
 •ry slii;hily narrowi 
 
 posteriorlv. 
 
 the tiliia' and femora fuscous; their hase. the tarsi and coxa' pale tVrruuinous 
 
 ili(|omcn : the four apical scfrnients and the ajiical maruius of the twoh; 
 
 il on 
 
 rufo-piceoiis. the niarjiinal band on the second segment produced into an anv'ular 
 
 shai>e in the middle ; the marfiins of the four apical seynients ciliati 
 reous liairs. Leni,'tli 1..") mm. (.Smilli.) 
 
 Htili, — Arctic Anicricii (the (ircat Hear Lake;. 
 
 Il wit II eim 
 
 K|»litrro|»litliHliiia <*y|»riN lil.ike. 
 
 Fi'iiiiili'. — Dark ferru>;iiious ; l.eatl round, as wiile as the thorax. cloMdy punc- 
 tured, niandihies and anteniue Mack : eves round, convex ; thonix eloiij.'ate ovate, 
 closely ciivered with conduelit |»iinctures. .slightly constricted liehind the middle, 
 witli a -iiiiill tuhcirle in tlie con.striction ; inetathorax roiinilly truii<ate; ley^s 
 testaceous, knees hlack, t hinly clotiieil with pale hairs, internieiliate and posterior 
 tiliiie armed with lonn s)iines: ahdonien elongate ovate, liasal >e}iment I'riiiLccd 
 witii iiale golden plllM'SCeiice : sei'ond se^rmeiit covered closely with elongate 
 punetiuis and liaviii); four smail honey yellow maciihe. two at the hase. the ot hers 
 plai-i'd a little Iwiore the ajiieal margin, which is fringed with pale jioldcn piilies- 
 cen<'e : apical .segments hlackish, (dothed with appiessed pale i;oldeii hairs ; ven- 
 tral seaiueiits siunc as ahove. Len>rtli 11 11 mm. 
 
 Hill). — ( T(>oi-<riii. 
 
 NpliH'rophtlialiiiH r<'ri'ii|;ufii Fah. . 
 
 />mrt/f.— Fi'rniifimiiix: head round, not as wide as thorax, finely punctured, 
 I'lothed witli fine, applT.s.s«'(l, filitteriiijj. ferrunilious luihescence ; antenna' fii.seous 
 
 ?■'.; 
 
 M 
 
 "1 ' 
 
 . m 
 
240 
 
 CHAKLKS A. r.LAKK. 
 
 nr Icsiarcoiis; cvch liir^'c. roiiiid, |iiilisli4'il ; ItaM- uf iniiiidiMcs fcrniKiiioiis. ti|M: 
 lilin'k ; thoriix j-lonpit*' oviiti-, iiiirrowcd |Mwterioi-l.v, fl(i»«-ly |iiiiii-tiin-4l mul t-lothwl 
 witli it|i|)r('SS4-(l fi-rriiKiiioiis piilK'Hceiicc ; |iro- and iiicMithorax havini; on cau'li 
 Kidc a Miiall ovatt- ttilx rch' : iiu'tatliunix tniiicatt-, and having on tlit- ilist- a Mliitlit 
 traiiHvt'i'st' rid^)' : U'H>^ Mackisli, clutlicd with itlittoriiiK wliite hairs, iiitf niicdiatc 
 and |>(>NtiTior tihiii- armed exteriorly witli strong s|iiiie8 ; alKlunicii ovate. Im.sal 
 He^iiieiit .small, testaceous, apically margined with lilaek : second segment flnely 
 |iuii('tiired, t'lotlied with fine a))|>ress<;d t'erniKiitous pulteNceni-c. and having a 
 small, rounded, testaceous spot at the hastil margin, itit apii-al niarKin Idaek ; 
 apical segments friiijjed with pale Klitteriiii; |iul>esceiice ; ventral surfacf shining. 
 tineiy punctured; apical margins clotlu'd as ahuve, hut IttM dcntsely. Ix-ni^'th T- 
 i;{ mm. 
 
 Halt.— riiitt'd Stntc.-. 
 
 Thi.« \n 11 vcfv viifiiil)l(' 1111(1 al>iiii(laiit .<|K'cit'.« ; in jmhiu* iii<liviiiuul:< 
 tin- U'us aif fcrni^niioiis, and witlioiit tlic dark s|M»t mi th«* .HfcoiKl 
 al)doMiiiial sc^zmt'iit, while in soiiic in.staiur.x tlicrt' an- indicatinn.x of 
 small lateral spots, and oeeasioiially the disc nt" the tliorax und al)- 
 doiiieii heiieath is testaceous. Its treo^'fjiphical ninire is <|iiite ox- 
 tended, heiii;.' t'oiiiid i'roiii Maine to Texas, and westward to Calit'oriiia. 
 
 It re.<einl)les S. slinil/inui Sniitii, lail is recotriiize<l hy the more 
 eloiijrate thorax, wiiich is narro\ve<l hehind, and tlie smaller hea*! ; 
 the heiid in ■•<lin!//iinii heiiiir hioad and (luadrate. 
 
 N|>liti>roli|>tlialiiia voNfa ('re.s.son. 
 
 Femiilv. — liut'ous, den.sely and rather roujrlily i>uiu'tunMl : hea<i an<i thurax 
 cltillud with a s|iars»', jflittering, ochraceous pnlie.scence, liut very den.s«- on tlu- 
 apical .■^(•jjmeiits ol" tlu' ahdnmiii; head not wider than the thorax, the vertex 
 with a few s<'attered, lout;, lihu'kish hairs, the puhesi-enct- uIkiuI the mouth hiuK. 
 dense and j,'litterin>; ochraceous ; eyes small, rounded, entire and c«invex : nian- 
 (lililes jiiceous; antenna- jiiceous, the lia.sal joint with a short <M'hraceon.» pulM-s- 
 .•eiice; thorax rather short, truncate in front, narrowed iK-hind the middle and 
 siijrhtly strainjulated, rounded aliove and heliind, hut ahrnjit on the side>. the 
 nu'tatliorax is rather aliriiptly rounded and excavated on each side: the thorax 
 ahove has a long, scattered, erect, hlackish puhescence. and a short, appn-s-strd. 
 reililish pile, having; a heautiful tcolden-n'd hue wlu-n viewed in certain lights: 
 sides of the thorax have a thin, fine, pale puliescetice. more den—- in exmvations ; 
 \>.%f lilack. or jpiceous hlack, ctotlwd with a irlitt'Tiiif; iM-hnic«-ous pnlH-.s«ence ; in 
 some specimens the coxie and femora are more or le.ss tingiil with dull rufous: 
 alidomcn ovate, rather le.ss coarsely |iunctured than the thorax: the mxle and 
 the lar^re hasal semnent, except their ajucul martrins. rufous: the rt-niaininK s<.>>!- 
 meiits hlackish, all the sejinients above and heiieath have an apiciil frinjf"' of 
 lonn, ilen.se, jflitterinj; ochraceous pnlie.scence : the larne htisA\ st-jjinent alNiveainl 
 hellcat li has a short, scattered, ochraceous |)ul)esceiice, oc<'a«ioiially with a rounded 
 jiatcli of short, hlack puliescence on the ha.siil middle al>ov«' ; sonietinn's the a|>t'X 
 of this scfiment is hroadly hlack. and soiiietinu's the sejonent is divide<l down 
 the middle hy a hlackish line. Ijcnjrth s..")-ll nun. 
 
 -f. 
 
 ^h 
 
XOKTIl AMKKICAX IIYMKNOI'TKKA. 
 
 241 
 
 Nphfrrophthalina albupiloMa Itlakc. 
 
 /V»ll(^•. — Ft'iTllKiiiiiiis ; head KUlMiiisxIi'ittc, postcridr uiik''''^ roniulril, closely Hinl 
 tiiicly piiiK'tiinMl ; cyrs hiiihII, niiiiHl : iiiiti'iiiiif t'lisco-rt'rruKiiiixis : iiiitiiiliUlfs 
 tippfd with hliu-k ; tliorux .siil)(|ii!ulratc, niirrowrd hchiiid, di'ii.scly piiiicttircKl. 
 ini-tathorikx iihriiptly truncatf; li-jfH castaiu'inis, clothed with iflitteriiiK white 
 hairs; ahdoiiieii ovate, second segment deiis<-ly and finely puncture<l, apical svg- 
 nients l)la<-kish, frinjicd with whitish puhescenee ; underside paler than alM>ve ; 
 entire insect clothed with erect white hairs. Li'njrth s..') mm. 
 
 Hal). — Texas. ( Bi-ltVap') Oiu' ."pcciiiu'ii. 
 
 Tlii.x s|H'('i('s closely ivscnihltf* tumw iiidividiials iA' ffrnif/iiii\ hut 
 may be readily distiiitfuislied hy the rather dense, white, erect pulies- 
 ceiice. 
 
 Nphfrrophthalina (*aneo Hlake. 
 
 /•Vhki/c — FerruKiiious; head round, not as wide as thorax, clothed with cine- 
 reous puhescenee; eyeslnrnc, round, prominent; sca|w of antenna- with whitish 
 hairs; thorax ovate, narrowed posteriorly, thinly covered with Kris«'ous hairs, 
 nietathorax i hliqU' U- truiu^ate; le>;s thinly dothetl with nlitterin>: whitish 
 hairs; ahdomen ov.it , tiuely punctured, thinly covered with erect white hairs; 
 apical margin of second sejiment fus<'ous at middle, fringes of senments white. 
 Lenjfth h mm. 
 
 Hal). — TexHs. 
 
 Allied to frrnit/((tii Fal). 
 
 ^f|»liH'ro|)hthaliiia iiiiitata Hlake. 
 
 Ffiitiilt'. — Ferrun'"!""* ; head rounded, transverse, finely and densely ))unctured, 
 mandililes hlacki.sli at tip; antenna- nijiro-fuscous; eyes small, round, convex ; 
 thorax rohust, ovate, si.j.'litly narrowed posteriorly, coarsely punctured, armed at 
 tin- sides with tw< ■ ' ' . • tuhercles, metathomx roundly truncate ; lens hlack, 
 thinly clothed with pale Klitterinn hairs; ahdomen ovate, .second segment with 
 l>iur pale ferruginous spots, two at l>a.s<.- small, those at apii-al inurgiu larp-r; th*- 
 remainin^ sejjments fu,s«>o-t'erruginous, the apical margins fringed with pale yel- 
 lowish or white pulnscence. Length K., ')-!:{ nun. 
 
 Hal). — Atlantic and Southern States. 
 
 I'lMin the examination of a lar^e series of specimens this may 
 j)rove to l)e only a variety oi' ffrnK/ufa. It is distin^'uished hy the 
 more or le.ss distinct pale sj)<)ts on the second abdominal .-iejrnient ; 
 thorax is rather shorter and brouder, jind the color of the apical 
 frinjre of the .se»rments varies precisely as \u firnif/ain. 
 
 Nphtrrophthalnia Hctpvola Hlak*-. 
 
 Female. — P\-rruginous ; head subiiuadi-ate, posterior angles rounded, slightly 
 wider than the thorax, finely iiuncture<l. thinly clothed with api)ressed reddish 
 golden pubescence ; antonme fiis<-ous. niandililes blackish at tips ; eyes round, 
 prominent; thorax ovate, much narrowed |M)steriorly, clo.si'ly puncture<l ; sides 
 of nietathorax smooth; legs bla<-kish, thinly clothed with pale glittering hairs, 
 sides of metiithorax smooth ; legs blackish, thinly clothed with pale glittering 
 
 i*- 
 
 n 
 
 M 
 
 TRANS, AHER. KNT. 80C. XIII. 
 
 (.'{1) 
 
 SKPTEMBER, 188<!. 
 
 ,4| 
 
242 
 
 (•HAHLK> A. KLAKK 
 
 hairs, ciili'iiriii whitisli: iilMloincii ovaU-. thi- M-roiid xetnueiit hitviii^ on tlu- Mm: 
 iit-ar iipiciil iimrKii) two lurKi* !iiilN|ua<lrat(- latcheit of |ialc fcrniKiiioiis and occa- 
 sionally two Kniall spots of the sanif color at hai>al niarxin : apical margins of all 
 the segments fuscous, third, fourth and fifth friuKetl with imlc silky pulR'Si'i>ncc. 
 Length <)..")-!♦ nun. 
 
 Hal). — Atlantic Siatcs. 
 
 Thirt la vci-y iit-ar to iniitatn, from which it (litters In- it.s much 
 sniallcr size, hy tlu' .s<'coii<l ulHloininal s^-jrment haviii<r jrcncrally only 
 two laruc, siil)i|iia(lratc, or ovate, pale, terrujriiioii.s spots, aiitl liy the 
 thorax l»einjr sli^rhtly loujjer an«l narrower |)osteriorly. 
 
 Npliit>ro|>litlinliiia balteula HIakf. 
 
 /•Vwri/c. -Fcrrujjinous ; hea<l roundwt. cU»«-ly «-ov<tc<1 with contiucut |)unc- 
 turcs, niaiidiltl' s hiackisli at tijKS ; antenna- fuM-ous; t-yes snuill. round, poli.'ihcd : 
 tlionix elongate ovate, narrow I |>osteriorly. side* ani'"<l with two small luhcr- 
 > 'fs. s|(arscly clothed with sh<»rt jwU- hairs: Uipt .'seoiw, or hlackish, thinly 
 clothed with pale hairs; ahdonicn elontnitt- ovat*-. the t>ai«il se);nient clothed on 
 middle ot' disc and apical margin with lale puli«-s<-»-ncf. second s«'nincnt closely 
 and tinely punc. tired, the posterior margin staine<i with darker color and fringed 
 with white puhesceiice. reniainitiK s«'cnients lda<;kish. cloth* d with Mack hairs, 
 apex witli pale puhesceiice; underside (laler. I^-liKth •!..'> II mm. 
 
 Hah. — Atlantic States, Texa."*. 
 
 This species varies consideralily in siz»-. pjisily reeojriiized hy the 
 coiitiniiMiis pure white trinire at upi«-ul marjrin of seconti sihdoniinal 
 .se<rnient. 
 
 DIVISION II. 
 
 First iilxloiiiinai .seo-nient gratlually ililat«-<l to a|N-x, as represented 
 hy Hjriiies lo and 1*1. 
 
 r^ 
 
 FiK. 15. 
 
 o 
 
 Pin. Hi. 
 
 N|»hii>ro|»hllialnia propinqiia < n-.-<on. 
 
 Mitli'. I'lack, clo.si'ly ininctured. somewhat nhiniiiK. clothi-d with Idack piilies- 
 reiice; vertex tinKc<l with rufo|ii<-<-<Mis and clothe«l with K'dde'i puliesct'iice ; 
 eyes small, roiiml, entire and convex : anti-iniH- hiack, siil««Ticeous ; thorax hhu'k. 
 with hlack piilH'scencc : the prothontx altove. the iiiemtthoRix and scutellum ru- 
 foUH, clothed with Ioiik K<>l<iell pulH-s<-«-nrc ; iiietathortx hlu4'k, roiilldi>d hehiml. 
 with larne, coai'se punctures unci sparse hiark ^iilx-wence ; teuiihe hlack, punc- 
 tured; wiiiKH dark fuHcous, paler alMiut thi- middle; roarninal cell lurKe, rather 
 
 hi 
 1)1 
 m 
 
 P" 
 
 o\ 
 
 ail 
 
 pe 
 cl< 
 
 ah 
 
 It 
 
NOHTIP AMKKlr.VN JiYMKNOJTKKA. 
 
 •24.S 
 
 [luck. 
 
 Ill ni- 
 
 iiid. 
 
 lllllK - 
 
 lit Iter 
 
 1(111^'. riMiiKlcd or smncwhat pointt'd at tiji, iiiid i-xccvdim; tin tip nf the third 
 sulinmr^iiisil cell; three distinct siilimur);iiiiil cells, the tii'st nearly as Idii; as the 
 iiiarKinal; the second liroad heneath, much nurrowed towards the niar^'inal ^'mi 
 receivinu the first recurrent nervure almut the middle; the third siil>iiiarni:ial 
 distinctly delined, short, pointed at ti|>and much narrowed lieiieath and reeeiv- 
 inn the st'cond recurrent nervure; lejis hiack, or piceous Mack, the IVmora he- 
 neath fringed with loiiji Krayish puhescence, tin' tihite and tarsi with Mackish 
 pnhescence : ahdomen ovate, hlack, closely puncture<l. the lar^e hasil sejinient 
 shininx, clothed with a very thin, Mack puhescence; apical margins nt' all the 
 senmeiits, lioth ahove and lieneath. IViiiKcd with lon^ );olilen puhescenct Lenylh 
 !• mm.; expanse of win^s li! mm. i('res.son.) 
 
 Hal). — Coldi'ad*'. 
 
 A vfi-y (li.stiiKl s|K'ci»'^, ca.sily n-ci ionized hy the ictl tli(ii;ix, witli 
 its ^ruldt'ii ptilu'sci'iict', ii.< wi'll a.x <it' the ii|iic!il iiuifLdii.-' u}' tin- al)- 
 ddiiii':;! s(';.Mii('nt.<. It i.< clo.scly allied to S. fii/nt/iliin, liiit i|iiite di.«- 
 tiliet l)y the eoldratidll (if the tiiui-iix and l)y the diHei'eiit «liape of 
 the niarfri uil niu\ siihiiiiir<:iiiid cell.-; nf the anterior wiugs. 
 
 M|>lii('ro|>lilliuliiin o<'«'ola Itlake. 
 
 Male. — lihick ; head rounded, . iirrower than the thorax, den.sely aud finely 
 punctured, thinly clothed with hlack puhescence; anteiiine lilack ; e\(S round 
 and proinineiit ; thorax rohust, siiliiiuadratc, narrowed posteriorly, deii-ely and 
 fliK'l.v punc -u'ed, clothed with scattered hlack hairs; nietathorax louiided. 
 coarsely reticulated; teifuhe ovate, very finely reticulated: wiiijjs t'ulininous. 
 marginal cell elon(;ate oval4', rtiunded at tip, first suhniarcinal iiearlv as larice 
 as the niartiiual. mirrowed towards the ha.se, Hfcoiid suhtriaiiK'nIar, its liasal in'r- 
 viire sinuate, iuid receivill^' the first recurrent at the middle, third narrowed 
 lieneath, indislinctly defined ; leus Mack, the intermediate and posterior tiliiie 
 ami tarsi clothed with pale lirownish puhescence, calcaria pale; ahdoiuen ovate, 
 tia.sal senmeut hlack. shillings puiH tiired, hearing a few hlack hairs, siiond sey- 
 meiit t'erriiuinons, shining, finely and remotely punctured, interspersed with 
 shor' t'erruKinous hairs, its api''al margin and loliowiuK senmeiits hlack. densely 
 clotlied with hlaf'k toescenee: under sidi' of second s«'Hi;,ent darker tl;;ui ahove. 
 I.rf'n>i,th 11 mm.; expanse of winjfs 17 mm. 
 
 Hal). — Florida, Southei-ii States. Colleetioii of .Mr .NoiImh. 
 
 This may provi- to he the nude of X. thihltnfd. Smith. 
 
 N|ili»>ro|»lilliHliiiH NiiiiboriiK Itlake. 
 
 Miilr. Head hlack. rounded, closely punctured, thinly doihi'd with in it hlack 
 hairs: eyes roiiml, convex, polished; antenme hlack: thorax clonKati >ulii|uad- 
 rate, rounded in front, closely punctured, sparstdy clothed with hlack hairs, 
 metathorax roujidly truncate, I'oarsely retii'ulate; letfulii' convex. \iry finely 
 punctured; wind's pale l'ulit.'inous. sli^ditly paler towards ha.se, mi.'iiini.l cell 
 ovate lanceolate, rounded at tip; first siihmarKinal laiye, narrow; sc<'ond suhiri 
 angular, rei'civinj; the fii-s; recurrent at middle, its ha.sal nervure s-'niia'c, third 
 pentauonai. wit i ahhreviuted nervures from its ext«'rior angles : levrs hlack, thitily 
 clothi'il with hlai'k and white hairs, femora minutely puii'tnred, "ulcii/ia white; 
 ahdomen ferruginous, hai^al segment campannlate, ' losidy puncturo'V pinictuns 
 
 
 I? 
 
244 
 
 ( IIAKM> A. Itl.AKi;. 
 
 tiiiiT at apii'itl iiittrtfiii, wliirli is t'lisi'iius, and t'rin^'cd with dark hairs: xTuiid 
 sctfiiuMit clKSfly |)iiiii-tiiri'(l. tliinl.v ciotlicd with ulittcrim; white hiiii-s. a|>ii'al 
 margin- t'lisroiis, thinly frin^'cd with hhuk iiairs. third and t'ii\ir!ii si'jfnirnts 
 soniewiiat <larkt'r. tini-l.v imncturctl, u|m'x hlark. LcnKtii 7 nnn. ; fxiMins*' of 
 win^s t'J mm. 
 
 Hall. — .Mussuchu.s'tts. ( olli'ctiftii ot' VvnW A^rasriiz. 
 
 This may prove to !)»• the iiiaK' of N. ulniilHind Smitli. 
 
 N|»liH>ro|ihthaliiiH flavlda Mlakc. 
 
 Miilr. Head and thorax hiack. tht- formt'r siih<)uadrHtc, |>i>stt'riiir aii^li'^ 
 riiundt'd, closely niinetiired. vertex thinly rlothcd willi pale yelliiwish liail>; 
 eyes round, prominent : thorax elosely punctured ; prolhonix, sides and seutelliim 
 eliitlu'd with pale hairs, nietathorax roundly tnincute, closely retieuiate; lei^uhe 
 ovate, ilosely punctured : win>;s |»iile fuscoiLs. taintly iride.s<-eni, niaririnal cell 
 elirimate ovate, rounded at tip; tirsi sulimaruinal l(in>; and narrow; second suii- 
 iriaiijiular. oMiipiely luirrowed towards hase. its ha.sal nervure sinuate, receivinu 
 the first recurrent at middle, thin) narrowed heneat li. receivinj; the second re- 
 current at middle, its apical nervure faintly tietlnnl ; lejis hlack, thinlx clothed 
 with pall hairs, calcaria pale; ahdomen elongate ovate, ha.sal se^'ment lampaini- 
 late. I'uscous. linely punctured, ihe apical margin l'rin);ed witli golden piiheseeiiee ; 
 second sc;;nient. except hase and apical margins, which are fuscous, l>rit;ht yel- 
 low, tiuely punctured, the punctures more dense at sides, remaining se^'meiits 
 Mack. uiarL'ineil with fiis«'ous. finely punctured, frinj:e<l with orantje-.vellow pu- 
 lieseence ; under side of ahdoineii tilackish hrown, finely pum'tiircfl. Length 
 II mm. : expanse of wind's Iti mm. 
 
 Hall. — Tcxn.-!. 
 
 NplitrroiilithaliiiH lali<*('|»N HIake. 
 
 .V'i'c. IJIaek ; head <|iiadrate. witter than the thorax, posterior inaiyin coiwavi'. 
 aniiles acute, vi'ry finely punctured, clothed with scattered while hairs; antennie 
 and mandildes Mack, the latter clothe<l with fine white hairs ; eyes roun<i , thorax 
 i-lon^ate ijuadrate, pro- and inesothorax finely |iuiietnred, nietuthiirax reliculuted, 
 rounded ; wines suhhyaline. iridescent, suhniarifimil cell ovate lanceolate, first 
 suhmar;iinal. hise<ted l>y a whit<' line, second reeeivinji t!ie first recurrent lU'r- 
 vnre a little hefore the midille ; tejjuhe round, prdished ; le^s Mack, clothed with 
 wliite hairs, <-alcaria white; alxlomen oval«-, shining!, first segment campanulate. 
 witli a small tuhercle on each side near llie hase. second seemi-nt with remote, 
 minute punctures hearing; a few s<'attereii silvery hairs; apical settments thinly 
 fVinixed with tlie same; under siile of entire insect clothed with scattered hairs. 
 Length <!..'■ nun. ; ex|NinKe of win^s I'J nun. 
 
 Hal). — Mexico. I'lof. V. Siiiiiiclifa.>'(. 
 
 N|>lia>ro|>litlialiiia Kraii<li<'«'|iN Itlake. 
 
 Miilv. Kri^lU ferniKiii(>us ; hetid sult(|iiadrale. nearly three times as wide as 
 the fliorax, luml mari;in deeply eoiwave, posterior anodes produced into acute 
 teeth, tinelv and cloMdy pum-tured, cheeks armed posteriorly heneath witii ii 
 loii^ a< iXv S|.!Me; inundih'.es hmjf, hiiteiitale at the tips, which an- hliiekish; an- 
 teiune : sea|u' anil two ha.siil JoiiUs of tlauellum pale femiKinoiis. remaiiiiiiK 
 joints fuscous; eyes sinull, rouinl ; tliontx elongate sulH|uaili-:ite, fei'hiy narrowed 
 
NoHTH AMKKICAN II YM 1:N( )|'TK.J{A. 
 
 24") 
 
 at niiildli'. iirotliorsix with a small tiilicrilc mi ladi side. iii<'tathiir:i \ rdiiiiilly 
 innicatc; \viii;rs only I'liilitni'iitary ; leys rastuiiiMHis, tliiiily i-l(itln<l wiih \vliitl>h 
 liairs, caliaria white ; alMliniicii ('l(His,Mlt' nvatc. si'ssilc. staiiiril with cri-laiicou";. 
 closely and fiiifly |i\iiicturc<l, thinly riot liril with silvery hairs. I,eii;r(li ti.."> nun. 
 Fi' III lit I'. Uri(rht t'erniifiiniiis ; head nearly as larye in |irip|Mirt iim to t he thorax 
 as that of tile male: thorax rohiist. sul>i|iiudrate. minutely |iunetni'ed. sides 
 deeply excavate ; lejjs eastaiieoiis. thinly eloihed with irlilleriiii.' hair> posterior 
 tiliia- armed with spines ; ahdomeii ahove stained with easfaiieoiis. thiijly eiotlied 
 with silvery imheseenee. Leiicth .">..') mm. 
 
 Hall. -Texas. Vwu s|M't'iiiu'iis : h 9 '■ 
 
 A very eiiriinis little s[»ecie,s; in stnietiire allied Id Inllnjis lilake. 
 
 N|»liH>ro|>litlialiiiH .vnlnpa HIake. 
 
 .Wi(/c. - Mlaek -. head rounded, thinly elolhed willi erect pale hairs: ;iiiteniiie 
 hiack : eyes round, prominent: thorax elonL'ate ovate, prothorax rounded in 
 tVont, tiiiely ))unetiired, posterior margin carinate. hearinu a lew erect, [.ale hairs : 
 mi-sotliorax liniMy punciured : met a thorax roundly t rum ale : coarsely niiculaie : 
 
 e: mariiinal iill ovate, roundlv Irun 
 
 \v 
 
 in)is jiale l'ulit;iuoiis, paler toward>11i( 
 
 cate at tip. second sulunar^inal receiviiiir the recurrent nervnre a litileheyoiid 
 the middle, a faint hyaline streak runnint; thioiiuh the tirst and second siihmar- 
 L'inal cells: teuiihi' rouiiii. tinely punctured; le;;s Mack, clothed with pale «lit- 
 feriii'.' hairs, lalcaria white: alxlomen elonL'ate ovat<'. shining, linely (■unciuicd. 
 apical niarjiiiis of all the scKnieiifs ciliaie<i with silver.v piihes<'ence ; underside 
 of entire inseet sprinklc<l with pale hairs. I^eiiyth !> mm.: expaiis( of wiiius 
 I.') mm. 
 
 Hal). — Mexie<». I'lnt'. V. Siiiiiirlica.st. 
 
 ite(\, 
 
 lirst 
 
 1 with 
 lulate, 
 •mote, 
 (hinly 
 hairs. 
 
 ide as 
 acute 
 ith a 
 
 i< ' 
 
 an- 
 
 Liiiini»2 
 
 irowiH 
 
 K|tlia'ro|»litliwlHin Kn|M>t4'«-H Ulake. 
 
 Mull Black : head siilniuailrale, posterior an^h's r<iuiided, ilosely i.unctured, 
 thinly clothed with yellowish white hairs: antenna' Idack : eyes nio<|erate. con 
 vex, rounded: niesothorax elevated, coarstly piinelnred : metalhorax roiiniled 
 ami po^t^ riorly trunealo, coarsely puncluied ; win^s snhhyaliiie, with an irides- 
 cent lusire. luarKinal cell moderately Ion;:, rounded at tip, three siil. marginal 
 cells, lir^l ahoui as larjfe a»s the marKiiuil, the second siilitrianuiilar, rect ivin^ the 
 lii-st recurrent nervure ahoilt the middle, tiie tliird ohsidetely iletintd and not 
 extending lieyoml the maruinul : let's Idack. tihia' (dollied with Ioiiil'. pale, ^lit 
 teriiiK iiairs ; ahdomeii ovate, ImlsjiI segment suhse.ssile with thes<-ciind. hoili of 
 whi(d) are polished, iiioderattdy puiicture<l and thinly clotlie<l with i reel, pale 
 t'lddeii yellow hairs; ipical .seniiiciits clothetl with dense, pale iroldi'ii puliescence. 
 Length T mm.: e.xp.tiiso td" wIi'.kk 11 mm. 
 
 Hal).— Mexicd. I'litf. F. Smuiehnist. 
 
 Npliicroplillinliiin Kiln Mlake. 
 
 Miilf. Illack ; entire in.s«'ct closely |iunc|ured: head sulxpiadrati . posterior 
 aiijfles rouinU'il ; mouth (dntlied with (wle piil»e.sci>iice ; eyeH round: thorax tdon- 
 uale ovate, metathonix roundly truncat**, linely relicniate : win^js amph . hyaline, 
 iridescent, marginal ladl (doiiKate ovale, pointed to tip, Hrst snhiiiar^inal nearly 
 as loiiK as the iiiHrKiiiiil. second stililriaii^'nlHr. pointed towanlH liase. rereiviiid 
 the riMMirrent nervure hefnre the middle: iiervnn's fiiwoiis : lej{s hiaek. thinly 
 
24n 
 
 CHAKI^I-s A. HLAKK. 
 
 clotlK'd with pule liiiirs; iilxliinit-n uvale, tin- sfjjiiiciits tVinm'd with Klitlf'i"i"K 
 white liiiii's; entire insect sprinkled witii pale piil)eseence. Length l{.."> mm. ; ex- 
 panse of winns ()..") mm. 
 
 Hal). — T<'Xii.<. H('ltVa<;e. 
 
 Npliierophfliiiliiin KohiiiNOiiil HIake. 
 
 /•'rill 'it I'. Black ; head quadrate, (hiiilile tlie width id" tluirax. posterior an^h's 
 produced into acute s))iMes, densely punctured, verte.v clotlied with den.se. I)rinht. 
 deep trolden puhesceiice : (dieeks proniiiielit, finely punctured, thinly clotlied 
 with pale iilitterinjr hairs; on the cheeks hidow tlie eyes are two small hilolied 
 tulierdcs I'erruKiuous in front, just heneath which there is a stout tooth on each 
 side projecting; hehind, ferru);iiu)us at tij); helow Ihe.s*- are two oihers much 
 larger, projecting heneath, lilack, sliining, finely punctured and clothed at liase 
 with pale glittering hairs: niuiidihies stout, with a tooth »hiiut one 
 third of their length from the tips, a hright fernigiiiouH dash hefore 
 the tooth : anteniue hlack, the .scape thinly clothed with |iitle glitter- 
 ing jjuhesceiice ; eyes prominent, round, polished ; ihora.x siili<|uadrate, 
 slightly constricted, reticulat'': anterior angles aruieil with a snnill 
 tooth; di.sc (dothed with hright gohlen puhe.scence, except a rounded 
 hlack patch on inesothora.\ and a longitudinal patch of the same color 
 on the metathorux. which is abruptly truncate: legs hlack, clothed 
 with pale glittering hairs, the intermediate and posterior tiliia' armed 
 exteriorly with a row of spines; tai-Nil j(dnts fringed witli firrniginous Iniirs. 
 calcaria pale, ferruginous: extremity of anteriiu' tihia- and first joint ni' tar.ii 
 deeply ciiiarginate, with tlies]iur lanceidate ; ahdoineii ovate. Iiasal segiiK nt liroad 
 al its apical margin, clotlied with pale golden puheseence, second segment finely 
 puiictiireil. I lot lied wit li dense hlack pul)esceiice and hearing two large (|iiadrant- 
 siia|>cd I'ulvous patclies, the third and fidlowing .segments fringed with pale gol 
 ice; under side of entire insect thinly clothed with pale hairs. 
 
 <h 
 
 11 I 
 
 lUhi 
 
 Length 1'' mm. 
 
 Hal). — Mexico ( I'fof, F, Siimiclini.-^t ). Five s|K'ciiiif!i,>j. 
 
 In soiiK' s|K'cim('ii."i the l)a,s»l joint of alxloincii is ciiiii-cly i>liick. 
 
 Tlii.s sjK't'ii'.s is iicitily iillicil to i-<ijiil<it<i Smitli, hut is fcmlily di.s- 
 tifi^niisiit'd Ity the sluipc of thi' thorax ami tin- ^I'fiitcr width of the 
 licad ill proportion to tiic tixmix, as well as tlu> Jar;.'!- tooth hcliind 
 the iiiaiidihh's. 
 
 N|»liii>ro|»lilliiiliiiii <'H|»itHtH Smith. 
 
 I''iiiiiih\ Hlack; head ipiadrale, widei' than the thorax, densely (dothed with 
 pule golden pnlx'.scence, the cheeks furnished with a stout tooth ; the apicul .jidnts 
 of the llagelliim ferruginous heneath: the ina:idil>les ferniginou.s. their ape.x 
 hlack ; thora:: short, hroad and narrowed posteriorly, roiin<le<l in front, suddenly 
 contracted, on each side it short tooth hefore the contraction; the nietathorax 
 trnncatc, the disc co\ereil with pale golden puheseence, liaving in front a large, 
 rounded, hlack patch; the legs thinly covered with pale golden puheseence, the 
 calcaria and ai>ical joints id' the tarsi pale ferruginous, the intermediate ami |ios 
 ti'rior tihin> armed exteriorly with a row id" spines; ;ihdomen : the second .seg 
 iiient having a lurge, tninsvt'rse, yellow inucula clothed with gohh-ii pi;lK'scence 
 
NOKTH AMKKK'AN M YMKNOI'TKKA. 
 
 247 
 
 1 1 with 
 joints 
 
 I- iipt'X 
 
 lldcMily 
 
 (Immx 
 
 iui-Ki', 
 
 [•(•, thf 
 
 fit pos 
 
 .1 Hl-K 
 
 Iccliri' 
 
 the inaculu (Icfply t'innr>fiii!ito aiitfriorly and posteriorly, narrowest towards the 
 l>ase of tile scKineiit and sli^ihtly eiiiarginate iit tlie sides, ttie ixisterior annles 
 rounded; the tiiird and foll()win^' segments covered with very luile golden pii- 
 tM's«:i'n<-e, the fourth having; a centrul pateh of Mack |)ul)eseencc ; l)eneatli, the 
 margins of tin- seKnients ciliated witli silvery puheseenee. Length 17 mm. 
 
 II 
 
 ah. 
 
 M 
 
 I'XlCd. 
 
 N|>litier»|>litlinliiiH 4|iia<lri«loiiM HIake. 
 
 Fnniile. — Black : iiead quadrate, douhle the width of thorax, posterior angles 
 ac\ite, face densely rugose, vertex clothed with pali' >;iildeii putu'.scence, cheek.'* 
 proinini'Ut, dei-pl.v punctured, heariiif; heneath twostron>f spines, curved forward, 
 in front oftlie.se, hehind the nuindihles, are two shorter ones, head helow clothed 
 with ionj.' ulitterinj; hairs ; maiidililes hlack, |)i>lished, stout, with two teeth Ix'fore 
 the apex ; antenna* hlack, scape clothed with lon>;, pale, j{olden pubescence, tla- 
 >;ellum dark ferruginous in front: eyes moderately ])roinineiit, rounded; thorax 
 sulxiuadrate. slijjlitly constricted rujfo.se. |irothorax with a stout tubercle on each 
 side pos;eriorl.v, di.sc of niesoth(>nix clothed with pale (foldeii iiuhescence ; meta 
 thorax roundly truncate, tlaiiks polislied. very thinly sericeous; lejis Ma<k, pol 
 ished, clothed with lon)» u'lilterinv hairs, the intermediate and posterior tibia' 
 armed exteriorl.v with a row of spines, calcaria loiiii, black ; abdomen ovate, ba.sal 
 sennu'iii nodose, .second sejiinent having an ovate spot of deep gulden |iubesccncc 
 on tlie(li.;c, apit'al niarKins of se>;ments thinly frinned with loiid pale hairs; uuih'r 
 side shinint;. i>unelured. thinly clothed with pale glitleriuf: hairs. Length !!• mm. 
 
 IliiK. — I'niuiiiui (H. Strt'ckcr). This s|M'('ii'.s i.s allied to liohliixoiiii 
 atitl rii/tifiitit, liiit is fcadily (li.stiiiLriiislu'd tVoin the t'oniicr liy the (ivtitc 
 spdt (III second alidoiiiinal .s('<rMiiMit, and tVoiu the latttT l»y llic sizt 
 of tln' linid. 
 
 N|»liii'ro|»lillinliiiH <«nl>l»il HIake. 
 
 /■ViiKi/c. -Hlack ; head siibijuadrate. as wide as thorax, posterior angles rounded, 
 densely rugose, spai-sely clothed with <'reet black hairs; above the eyes on ver- 
 tex are I wo ovate spots of appres.sed pale noldcii |)ubt'.scence. cheeks prominent, 
 coarsely. I'ontluently punctured; mandibles lilack, mouth clothed with pale yel- 
 lowish hairs; scap<' of antenna' clothed wit h pale K<ddeii pubescence, lhi):elluin 
 sli^'htly pruinose ; eyes prominent, round, polished; thorax sub<|ua<lrat<-, nar- 
 rowed posteriorly, densely rugose, anterior aii^h's of prothorax armed with a 
 short tooth ; disc of mesolhorax bearing a transverse band of |iale ffoldcn pultes- 
 cenci', anterior anules produced into acute teeth. Hanks deeply excavate, (llled 
 with pale ])ubes4-enee below, above wliich the.vare |)olished ; metathorax roinully 
 truncate, with an obtu.se tooth lui each side anieriiu'h, ( 
 
 disc I 
 
 laving on eu< 
 
 h sid< 
 
 an idonuate ovate stripe of pale Kohleli pubescence; lejjs clothed with pah' yel- 
 lowish hairs, calcaria |>ale ; abdomen elongate ovate, ba^il segment hnvinx two 
 lateral patches of pale utddeii pubescence, second (Inely rugose, the dorsal surface 
 beariiiu numerous, minute, lon^titudinal. parallel carinie; ou the disc are two 
 round, yellow s|M>tM niid two lateml stripes, thinly clothed with pale golden pu- 
 bcsceiii'e ; apical segments black at middle, sides clothed with >;olden pubescence ; 
 under side black, s«'conil segment moderately coiir««-ly punctured wit li a lati'i-al 
 obli((uc stri|H>, mid upicitl tnar^ins <d' all the .s4*KiuentN (duthed with silvery pu 
 bcscence : anterior marKins of all finely aciciilate. Li-ni;tli H mm. 
 
 Hall. — C'o?it« Kica. Two s|»«'ciiiK'iis ; rollcrte*! I>y the hit*- W, M. 
 (iaiih. 
 
24H 
 
 (HAI{I.F> A. HLAKK. 
 
 N|>liH>roi»lithHlnin el<><*tra ithikc 
 
 Frniiih . Hfiul tiliick, MiilHiiiiKlnitc, |M>st<Tiur uiiKles rmiinltHl, closely |iiiiu'tun'<l, 
 Vertex eluthed with reddish golden imheseenee ; eyes roiiiid. proiiiineiit : snipe 
 <it° aiiteliiiie eustuiientis. thiKeilllin piceoun: iiisiiidihles t'erniKiiioiis ut htise, hiack 
 at tip8: thorax ovate, narrowed posteriorly, liri^lit t'erniKiiioiis. (iiicly punctured, 
 thinly elulhed with reddish Kohh-n pnheseenee. hearing on each side two small 
 tuhereles: nietathorax coarsely niKos<- on <lis<-, abruptly truncate; le^s hIack, 
 thinly clnihed with iflitteriiiK white hairs: alHlonieii ovate, entirely hIack aliove, 
 closely and minutely punctured, thinlv clothed with hIack puhesi'ence ; under 
 side closely and tinely punctured, clothed with silvery puln'scence, the maritiiis 
 III' the second, thinl and fourth s«.'>!inents friiiKed with silvery pulM'scence, apex 
 l>l:ick. LcUKth !• i:< nnu. 
 
 Ilitl). TcXitS. TW(» S|H'('illl('Il>. 
 
 Very ilistiiict 1)V the iilxloiiicn Ikmii;: ciitifcly Ithick jiluivc iiiid 
 cldtlu'fl with silvcfv |>tilM'S('('iic«' iM'iicatli. 
 
 N|»lllll'l'0|»htlllllllin l4'rillH Klake. 
 
 /•'rmtili'. Head suliijiuidratc, wider than the thonix, (Misterior anjries rounded, 
 cheeks produced into an acute tooth, dark I'erruKinou.s, vertex thinly clothed 
 •vith scattered (jolden pile, interspersed with a few en-i-t Imins: faee, seap<' of 
 aiitenuie and niandihles rufous, the latter Mack at tips; eyes round, prominent : 
 thorax tiiiely reliculatetl. suhovate, contracted liehiud the mesothonix, ^vhich, 
 with the interior anules. is armed at tlu' sides with a stout tooth, nietathorax 
 Kiiidually rounded iiost<'riorly. with a row of small teeth on I'ach side; lateral 
 ileclivit;i> polished ; leys rufous, clothed with KlitteriuK hairs, intermediate and 
 posterit •;■ tiliite armed with spines; aliilomen ovate, vi-ry tiiU'ly piinetured, dark 
 ihestnu! Iirown, se<'ond seynu'iit having' a hroad hand of appressed, hriKhl uoldi^n 
 pulieseenc I-, posteriorly emar)>iiuite, apical margin ni'arly hhick : the remaining 
 scKUieiits thinly clothed wit h l)ri^ht iiohleii pulM-scence ; under side |ialer than 
 aliove. tliii ly punctured, shining. LeutMli )>..'> mm. 
 
 Hull." -M»'xi('<i. I'l-nt". F. '"»llliiiclifiist. 
 
 Allit<| to (hii(icit/(it<t Si'.iil], liiii iii.-iv Im- (listiiiLMiislu'd tVoiii tlml 
 s|H'<'i(',-i liy the cliirkf '»' iii^ spiiit'tl, ami tlu' iilisnicc nt" tlic iil><li»iiiiiml 
 tiilu'rclfs. 
 
 N|»lin*ro|»lif linliiin <'aiiH«l<>iiMiN Mlake. 
 
 l-'imiilr. Ku.sco-testaceous ; head sulM|ua<lratf, wider than tin thorax, posterior 
 angles acute, tiiiely punctiin'd ; fuee fuwouit; uiiteiiiiii- and mandildes |Hile ru- 
 fous, tips of the latter hIack ; eyes Idack, round, |Hilished ; thorax short, iiuadrale. 
 anterior angles .•icule, sides crcnulated. dens«'ly and linely punctured, metalhoni.x 
 roundly truiicute; le^ts rufo-testaceoiis, thinly clothed with |>ale KlitteriiiKihuint. 
 calcaria w hite ; ahdomen ovale, second se^dneiit tinely punctured, cloiideil towards 
 the hiise with dark stains, apical inarKiu and remaiiiiiii; segments dark fuseous, 
 thinly (dotlied with pale ):idden puheseeiice. I..eii^th .'i..'i mm. 
 
 Ilnl). — (llllllilll. 
 
NOHTH AMKKICAN II YM KNol'lKltA. 
 
 •J4!t 
 
 sttrior 
 Itli' rii- 
 liilnitt'. 
 
 Mionkx 
 
 iliiiirH. 
 
 UviinU 
 
 llSCOUH, 
 
 Mplitrroplilhaliiia biMiKiiHlu Klukt 
 
 I'l'iiiiilr. — llraii >iili<|u:ulriit( 
 
 tier lliaii the tlnirax, |>iist«'riiii' iii 
 
 not 
 
 roiiixli-il. vertex anil face clotlied witli \n\U- jioldeii imlM-weiiee, postcri"! iiiar^ii 
 
 ^r-^ 
 
 Mack. I'lieeks proniiiieiit. clotlieil with silvery luiirs; aiiteiiii:i Kiark : 
 eyes mil ml. |iiili-<hei! : tlmrax slmrt, siulileiily iiarrnweil lieliiiel cldilii 'I 
 Willi pale KDJdeii piiheseeiiee, inesiitliorax with triaiiKiilHr. uiiimilale. 
 Maek patch, inetathiirav aliru)itly triineale; iejis rul'iepieedii-. <'l<>thei| 
 willi pale ulilleriiiL; hairs; ahilonieli ovale, hasal se;;ment hlink. seenn.l 
 se'.'ini-nt with a lai'tie siilM|uailrate Maek pat<'li on the dise. sin Kiiinileil 
 l>y an einarvinate hand <it' ;:i>ldeii piilteseenee, eiiehisiii^' t\vi> small 
 lateral lilack spots ; apical margin clothed with dense hiaek pulu seencc. 
 remaiiiiiii: smnients I'rintred with silvery piiliesceiici' ; vihlriil set- 
 inents thinly clothid wiili lon^ pale hairs. I,en;;th II iiiin. 
 
 Hal>.-M.xi. 
 
 I'fot'. V. Siimiclmi.^t. 
 
 N|>liii'ro|>lillialinn <*oiiii<>«'|4'iim (resson. 
 
 Friiiiilf. ' Kerriiiiinous or t'lisco t'erriiniiinu 
 
 oselv and rather tinelv iiimiiired 
 
 head Ian 
 
 iiadrate, wider tUaii the thorax, clothed with a short, den-i . i:cddeti 
 
 st'riceoiis piiheseeiiee; eyes small, round, entire and co.ivex ; apical hall' of man 
 dihles lilack : anieiinie f'errnirinoiis. dusky towards the upex ; thorax -in.rt. su'i- 
 i|iiadraic. Iiroad and slight l.v rounded in front, somewhat straii);nlated alMiul the 
 middle and ahriipt and truncate hehind, the lateral niaruins serrati' : upper snr 
 tace hiaikish, with fuscous puhesceiiee ; a patch on each side of the ni< lalhorax 
 ahove. as well as most of its posterior face, with a short golden serici nus pulte-- 
 ceiice : the latentl excavation very lar>;e. rather deep, snioolh •ml poli-htd: leys 
 ferruginous, with yellowish pulie.sceiice ; ahdoinen ovate, luoad at li;i-c. mihcr 
 densely clothed with short, appnssed, golden sericeous pul>es<'eiice, pah r on the 
 api<'al seL'nienls; on the hasal middle of the second segment alii>\i a hirye 
 rounded, fusions spot exteiidiiii: a short clistance on the apical luai.in of tin 
 tiiNi .sej^meiit. and on the apical middle of the second se;;nient another lai i:c dai k 
 fiisidu-" -pot, rather transverse, and connected with the hasil spot hy a -Imrt. nar- 
 row, fuscous line ilown the middle of the secment ; hoih spots are clnihed with 
 I'uscous pulwsceiiee, that on the apical spot darkest; apical senmenls ;.'■.. \c and 
 heneath densely ilothed with >,'(ildell sericeous |iuhescence. LciiLlth '■ 11 loni. 
 
 Iltil). — ('ii|»»'St. Liicus, Ldwt-r ( 'iilil'tiniin. /*-. 
 Npliirroplitlialiiia f'«'rriiKiii4>a Smith. 
 
 ./.• 
 
 'erruKiiious. rugose; the head wider than the thorax, siii'iiuadrati 
 
 the liiiid<-r angles acute, tlie po.sterior niaru'in nearly straight, densciv coverid 
 above with pale )>oldeii colored puheseence. that on I he cheeks is t hill .iimI siUiiy 
 white; thorax ohloii);. pyriform, with a thin, short, pale Koldeii piihesi , nee, and, 
 as Well a» the head, thinly sprinkled with erect pule hairs; the lejfs with thin 
 pale |iul>e-ceiice ; the iiiteriiK'diate and^posterior tihia' 'vith hiai'k -|iines: tin 
 first sej;nient of the alMlonieii small and with a spot of silvery white pul'ocence . 
 the seoiiid segment with ii siihovate patch of Mack puheseence in ihc middle 
 towards the hasti margin, its upii'al inarttin with hiack |iul>e.seenc 
 
 ih< 
 
 th 
 
 fourth and liftli segments with silvery while pnliescence in the niiihiU . that at 
 t lie Hide of the iipieill seKlliellt IhMIIK lilack; helleatll the se);iiients iiii frillKed 
 with white. Leiitclh l-'i nun. iSmilh.i 
 
 niil).--.Mt'.\i«'i», ( )ri/.al)ii. 
 
 TRANS. A.MKK. KNT. WM'. XIII. 
 
 ;k) 
 
 KKITKMIIKI!, If-Ni 
 

 2.')0 
 
 ( M.VUI.I>* 
 
 MI.AKi:. 
 
 N|»liH'ro|iliflinliiiii coiitiiiiiii.v ('n.-vsmi. 
 
 /'Vmii/c— OliHciiri' riit'iiii.s, very ilciisdv uiiil soiiicwliat ciiiirscly iiunctiind ; lu-ad 
 very lai'Kt', i|iia(lrat<', liniadci' than tlic thorax ami lU'iiscly i'h)thr(l witli a silscry 
 oclind'CDiis ]iuIh-.s<'('||('(' : I'yi-s small, I'liiiiid, ciitiiT, convrN and ixiiisht'd : niandi- 
 lilcs lilack at tips: antenna' intirtdy I't'i'i'iiKinmis ; thorax short, sulM|iiadi'at«', 
 hroaii and tnincatf in front, stranKulatrd hciiind the niiddlf. dcclivious on the 
 sides and l)ehind : u|i|ier siirl'aee with a sparse hlaeki.sh pulH-seen<'i- ; un the lat*-ral 
 niafKiiis and Indiind witli lonji, scattered, ochnieeoiis pnhescenee : the deep lateral 
 |iiisterior excavation lar):e. smooth and polished ; U-as pale rnl'ons. thinly eloihed 
 with oi'hraceoiis puln'seence ; alxlomen ovate, rather hroad at ha.se, the hir>.'e 
 hasil segment clothed ahove with a very short. appie>sed. jjolden sericioiis pu- 
 liescenee, on thi hasil third a lartie. (|iiadrate, pale ruscons, centr.il spot, and 
 another smaller one on each side, all connected at huM' hy a narrow transverse 
 hand, the apex with a hroad tninsver.se Itand of the .same color: the remaining; 
 sennienis ahove and henealh with a dense iVinye ot" lon^t silvery ochraceons or 
 cinereous puhes<'en<'e : the mxle, in' small hasal segment is >haped like that of 
 s. moiitiriiiid. \mt less hroad. its apical mar^iin is pale I'n scon. s. Lcn^'th II mm. 
 i('res.son. i 
 
 Hull. — ( 'iiloradu. 
 
 'riii> iiiTtty s|K'cif.s is cii.sily rccdoiij/ed l)y tlic liiro'i' oclirjici'nii.s 
 liciul tiiiil tlif (Hiiaiiifiilntidii of tile IjifLTf IklsiI .sciirmiit of llic al)- 
 (Idiiicii. It lia.s a clnsf ally in .V. i-innnciriiK Cfc.ssoii, IVmii l.,i)\vc'r 
 Calit'diiiia. wiiicli diHir.s |>riiici|uilly l>y the .sccniid .<i'LMii('iit i»t' tin- 
 al)doiin'ii liaviiio- two lafjrc t'liscoiis spot.x, oiii' on the Im.sal iiiiddK' imd 
 till- otlii r on tlic apical niiddir, l»otli coniit'ctcd l»y a short, nari'ow, 
 I'liscotis line. 
 
 M|»lia'ro|»lilliHliiiti Kotliii'H HIake. 
 
 I'niiiilf. Mead and thorax ilark ferrnKinous, den.sely anti linely reticulated, 
 thinly cloihed with pale golden piiliescenec, interspersed with hlacki^h hairs; 
 ^ head slightly wider than the thorax. i| mid rate p',>.-.ierior angles rounded, 
 hind margin hiackish: antenna': scape and first Joint of lla^ellum 
 ferruginous, niandihies hiack at tip; eyes lartre. round, polished; tho- 
 rax i|uadrate. luetathorax ahruptly truncate, coarsely reticulated, 
 lateral declivities concave, polished; h'«s ferruiiinou.s, thinly clothed 
 with pale jilitterinn hairs, intermediate and po.sterior tihia' armed ex- 
 ternally with spines, calcaria pale; alxlomen ovate, hasal sc^nu-nt 
 ferruuinous, darker towards the apical margin, which is frinceil with 
 pale iioUlen puhescence; second segment pale fnlvou.s, having on the 
 (lis<' an clonpite ijuadrate hIack ]mtch I'.xtendinn from the apical margin to the 
 lia.se. where it terminates in a point, on each side of which there is an ovate spot 
 of the Mime color near the anterior margin; apical .se^nicnt.s hiackish. clothed 
 with |iale Kolden puhescence; iiniler side (d' entire insect fermninous. Length 
 f^Jy mm. 
 
 Halt. .Mexico. I'l-of. F. Sniiiicliriieit. 
 
NOKTH AMKKICAN H YMKNOi'TKKA. 
 
 251 
 
 NiiliHTophtlinlina iznoHr Kliikr. 
 
 Femiilr. Ilfuti iim) tlidrax tVrnijiiiKHis. Ilif fnriiuT (Hiiidritc, |M)stfri(>r unKlP!* 
 i«Mit(>, widi-r thiiti the tlionix. fhicly rt'tiriilatc ; s<'a|K' of aiiti-nnii- luid nmnilihlcK 
 nifiiiis, tips of the latter hlai-k : eves roiiiid ; tlionix short. sii>x|ua(lratt', roiiiiilt'il 
 in front, slijjlitly constricted at tlie sides, wiiicli are tintdy dentate, nietatliorax 
 aliriiptly trtUK-ate, coarsely reticulate ; lejrs rufo-testaceous, with a few ^'litterinK 
 hairs, intermediate and posterior tihia- armed with spines, calcaria white ; iih- 
 donien o\ate. second segment with a hroad hand of pale golden pile on the iipicill 
 nmr^'in, liavin^a seniicircnlar notch on its initerior edKc apical se^nient.s fringed 
 with pale mdden piilM'scencc : underside dark rnfoiis, inclining to hlack at the 
 lia.se. Len^'th )!.,"> mm. 
 
 Hal). — Mexico. I'mf. F. Sumi('lu'a.«»t. 
 
 |■r-^ 
 
 N|iliU'ro|»litliMlnin <'liia|»H Klake. 
 
 Ffmiilc. — Heail and thorax ferrntrinous. closely and tinely punctured, the fornu-r 
 ipiadrate, postirior antrles acute, wider than the tlioiax: antennie : 
 sca|M' and lirst joint of llatrelliim rufous, mandihles hlac,'^ at tips; eyes 
 round, polished; thorax short, sulM|ua<lrat<', rounded in front, sliulitly 
 constricted at sides, nielalhorax ahruptly truncut<' ; W'lis pale rufous, 
 thinly clothed with whitish hairs, intermediate and |M>sterior tihia- 
 armed with loliu spines, calcaria p.ile ; ahdouu'U ovate. Mack : apical 
 marKin of ha.sal se^jmeiit fringed with pale golden |)ul)esceiice, second 
 segment havin<; a lunate hand of jKile golden puhescence. connected 
 with the anierior marv'in hy t wo lon^iitudinal lines of I he same ; apical 
 
 Ke^inents fringed with pale K"ldcn puhescence; ventnil se;'nients siiuie as ahove. 
 
 Length T mm. 
 
 Hnl). — Mrxicu. I'ml". F. Siiiiiiclira.-il, 
 
 
 M|iliu'ro|»lilliailiiia rriK-iiifn ."^mlth. 
 
 /•V/)i(//c.- Head and thorax ferrut;inous. the former (|uadrate, the posterior 
 angles acute; the cheeks produced into an ohtuse spine; the postei'ier 
 i " "^^ mar^'in of the vertex and the sides of the In-ad fuscous; tlic vertex 
 p'-~c more or less adornei] with silvery i)ile; the antennie ruto-fuscous ; 
 thorax tiddle-shaped. the lateral margins th'iiticulate ; lejis rufo-leslu- 
 ceous. ditferiiiK in depth of coloring : ahdonien : tlie ha.se more or les.s 
 rufolesta<-eous, a central narrow liiw of silvery puhescence runs from 
 liase to apex, a transverse fasria cross<>> the second se(;mcni a little 
 within the apical margin. LcukIIi *>.'> mm. 
 
 Hal), lira/il ( Parai, .M(\i<'... 
 The ^pcrimi'iis trniii Mexico liave the ceiitfal aiiti tfaiisvei-se lilies 
 of pale lioldcii [Uihcscence, 
 
 NplitrroplitliuliiiH Mnliilalrix Smith. 
 
 Fi'iiiiih . Hl.ick, with the thorax and le;.'s ft-rru^'inous, the antenna' and man- 
 dihles oli-curel.v so; head much wider than the thorax. suh<|uadrate, the posterior 
 an;;les acute, with tiolden yellow puhescence ahove and a hhu-k, semicircular spot 
 on the vertex anteriorly ; thoi'ax narrowed hehind, constricted ahout the middh . 
 the maruins with a series of compressed teeth, closely and strongly punctured 
 ahove; ahdomen, with the niaruin of the tirst se^fmeiit, a triangular spot at the 
 
 
I 
 
 ,' « 
 
 J>-' <HAI{LF> A. MI.AKi:. 
 
 l)Ms<' iif till- srniiKl, t'ritin wliiili :i narrow line t-iimtiHtvs uiiil iiiiitcH with ii l>riii«l 
 iMsciii III :ir till- apiciil inartiiii ot' the Hitiiie Ht-Kiiu'iit of liriKht ifolilcti rolort'il pii- 
 lifM'ciH I •: from thf tniiisvfrM- fiiHciii :i line of Hiiiiilar piiln'scciict' runs loiit;itii 
 (liiially tip thruprx. Li-nirth •!.."> «,.'» nun. (Smith.) 
 
 Hill). — >ri'xic«), ( )ri/iil)ii. 
 
 M|»liu>i*o|»lillialiiiH |M>(ri<*olH Hlakt-. 
 
 Ffiiiii'i . Head iiuadratt-. wider than tin- thorii.x, fliu-ly piincttirt'tl, havinjj a 
 tliin M-'ttcnd piihcsccnrc ; antciinii'; scajH' ami first Joint of llatrcHiini Icrni^iin- 
 oiis, ri'iii:iininu joints picfoiis: niandililr- frrrnuinons, tips lihuk : eyes round, 
 |iip|ishii| ; thorax .short, closi'jy punctiiri'd. ronstrictt-d lifforr the nictatiiorax, 
 which i« ;iliruptly triincatf. sides deeply impressed, shining; le^js pale fcniinin- 
 oiis, thinly clothed with shinint; hairs, intermediate and posterior lihiie armed 
 with -pines, calcaria white: alHlonieii ovate, liasal se:;ment frin);ed with ijolden 
 piilwsciiiie, second M't'ineiit dark chestnut hrown, ha\inK a transver-e lianil of 
 Uolden {iiiliescenee liefori- the apical marKin. remainiii); segments ferniKinons, 
 fringed with pale golden hairs: under side paler than ahove, shinin;;. Length 
 li.'i nun. 
 
 Hill". — .Mexico. I'ldf. V. Siiiniclifiist. 
 
 Mpliu'rophtliHliiia prHM-lara n. sp. 
 
 /•'(•;;iii/c. -Ferruginous: hea<l transvers<dy sulH|inidrate. wider than the thorax, 
 |MisliM'ior angles siiliaciite. clotheil with appresM-d, jjiitleriin;, pale, golden piilies- 
 ciin'e ; iinteiinie and iiiandililes ferrnninons, tips of the latter hiack : eyes lound. 
 polisheil : thorax short, aliruptly narrowed liehiiid the middle and oliii(|nelv 
 tnincat''. posteriorly dark fernminoiis. finely rnyose : prothorax thinly cloi 
 with ei'i I't. Iiiai'kisli Jiairs. meiattionix with jiale hairs: le^is pale ferruginous, 
 t hiuly I ill! lied wit li pale ^iitlerin}: haii>: intermediate .iiid posterior tiliia- armed 
 with opines; alidoiiieii nvate. liasal sev'nient -mall, si>-ile with I he second. it> 
 apical inirnin at middle lestacemis, second sediment firrnniiiou«.. sparsely clot lied 
 with -iini't, pale golden pulie.scence, its apical miirxiii and remaining; se},'ments 
 l)'aiki-li. third and fourth segments fringed with silvery puhescence; \entral 
 surface tinely and remotely punctun d. the pnlie.sceucc lon^'ei than aliove. Lell^th 
 
 H:il«. -.\rizoiiii. ye-i- , 
 
 .\lliiil \i> S. miciiitii Siiiitli, liiit may !»«■ iciidily stuiifsittil l»v tin- 
 iili(liiiii<ii lu'iiio^ rcniio-iiKiiis, wlicii'iis ill llitit s|K'ci('s ii is IjIjicIx. 
 
 Npliirroplillialiiia auripoM lilaki'. 
 
 I'i-iiiiil'. Head luuiided. (iiiely punctured, dark I'erriiuiiious, vertex and cheeks 
 thinly ilntlicil with line, pale, golden pulM-M'ence : antenme: >cape and first joint 
 of Haul '!um ferrut.Miiou.-, remainini! joints pici-oiis : maiidililes dark ferrui:iiious, 
 ii|iK lihick ; eyes round, prominent : thorax coars4'ly reticulate, rounded in front, 
 ciiiistricti'd hefore the inetnthorux, which is aliruptly truncate, dark ferruginous, 
 sides of melathorax <lee|)ly inipres.sed. shiiiiiiL.': lejjs t'ernii.'iiious, clothed with 
 scattered, ((littering' hairs: knees Mack, intermediate and |ioslerior tiliiie armed 
 with a low of .spines; tarsi clothed with pale golden puhescence; ahdi.men ovate, 
 dark ferruginous, closely punctured. Iia.sal setfineiit small, the a|iical margin on 
 the diic clothed with golden pulie.s<-eiice. second scKlueiil with a fascia of ptlden 
 
 % 
 
MUtril AMKUKAN II YMI;N( (I'TKKA. 
 
 
 |l 
 
 riiii<l 
 , it> 
 itlH'd 
 
 lilts 
 
 lit nil 
 iikilh 
 
 tlu- 
 
 lucks 
 jiiint 
 
 IIIDIIS, 
 
 trtiiit, 
 iiHUis. 
 
 witli 
 iriiK'd 
 
 iv:it«'. 
 till III! 
 
 ildi-ii 
 
 |iiiIm-sccim'<', int<'rrii|it(Ml iit tlic iniildic, U|iii'»l margin Mack ; the rciiiuiiiiiiK sc^i- 
 iiii-iits friii){c(I Willi ;:ii|ili'ii |iiilit's<>('iii'c: iindi-r side liixiy piinctiirt'd, sliiiiiiiu. 
 |ml<*r than alMivc. Lt'ii^tli (!.>'> iiiin. 
 
 Hub. — Mexico. Prof. F. Siiiniclini.»t. 
 
 .H|»liH>ro|»lilliiiliiin iiiiiiiiliNNiiiin HIak)' 
 
 Friiiiilr.- 1 1 fill I i|iiadrat)', wider than tlir thonix. |>i(stt rior aiij;!'''* acutf, fiiscims, 
 tliilily I'lothi'd with pale ^'litlcriii): laihi'Sit'iici- : face, scape of aiitcliiuc and niaii- 
 dililit* fi rriiKindiis: eyes round, proinincnt : tlnirax ovittc. dark fcrriiKiiKiiis. 
 rhtthfd with i-n-ct ilark hairs, mctathorii \ roundly 1 1 iint'at)', siih-s dcnticiilate ; 
 Icjis fiist'iiis. cloth" d with pale hairs, interiii. diate and posterior tihiie armed with 
 spines; alMloincii ovat<'. ha.sal segment ferriixinoiis. so<'ond set;int'iit fuscous, hux - 
 in>.' on the dis<' a transverse, posteriorly eiiiar>;inate hand of tine (flittering piihes- 
 eence : a|iical si-Knients clothed with pale piihescenee. Length i! inin. 
 
 Hul). — Mexico. I'rof. K. Siiiiiiclin».«t. 
 
 M|»liii>ro|>litliiiliiiH pyKiiK'H HIake. 
 
 h'fiiiiil, . Kerriininoiis: head round, wide as thorax, nuxhi-ately coarsely punc- 
 tured ; I leiina- honey yellow, scape clothed with yellowish piihesceiiie ; tips of 
 niandihi. -. hhickish : thorax suhovate, narrowed )>ostcriorly. densely punctured. 
 s|iarscly clothed with erect white hairs; lejis honey yellow, clothed with jiuhes- 
 cence of tlie siiine color; ahdniiien elonirate ovale, closely punctured, thinly 
 clothed witli loii>:, erect, whitish hairs ; apiial niarnins of seynieiits almvc frinncd 
 with white piihescenee. Length l.."> 7 mm. 
 
 Hill). — Tcxii.s, Colofiido, Xcviidii. Four s|M(iiiK'iis. 
 
 Mpliit'ro|»lilliitliiiH virKiiiK'iilH n. sp. 
 
 .FcHi(i/> . — Head rounded, not a.- wide as thorax. ferriiKinou-, covered with 
 coarse, c.inlluent punctures; aiiteiiiue fiisco-ferni(;iiioiis ; eyes round and proini- 
 neiit ; tli'irax nilui-i. ovate, narrowed posteriorly, t'erniciiious, conlliieiitly puiic- 
 lured, t!iinl> clotlud with short, erect, pale hairs, a small hiteral notch heliind 
 the mc>"'thor.i.\ : nietathorax ohlii|iiely truncate ; lejis castaneoiis, t!iinl\ clothed 
 with pale hairs, the tarsi ?omewlial paler; ahdomeii ovate, hiack, finely and 
 closely punctured. spars<dy c'othed with erect white hairs; apical margins of all 
 the se>riiients friii'.'cd witli write piihescenee. Length .").."> mm. 
 
 Hal). — New Mexico. 
 
 Mphii'roplillinliiiu pNiiiiiiiinilroiiiii HIakc. 
 
 /•V/ii/i/c.-IIeail hIack. .somewhat widi'r than the thorax. (|uadrate. posterior 
 anjiles a'Ute : face, sea) le of an tell me and iii' ;idihles ferruui nous, tips ol' t he hit tei 
 hlack : eyes lar;f«', round, )>romiueiit ; vertex and posterior mart'in nearly hIack. 
 clothed witli scattered KohliMi pile; thorax short, sharply constricted at middle, 
 sides ereniilated, ferruuinoiis; letjs jiale lerrutiinoiis, thinly i-lnthed with nlitt<r- 
 iiiK hairs, interinediate and posterior tihiie miiiiciI with spines, <'alcaria white; 
 ahdomeii ovate, hlack, hasjil senmeiit maririned with ;;oldeii piihescenee, second 
 senineiil with two small fu.scous spots at the hase and two ovale spots clothed with 
 pale utdilcii pile near the apical margin, which is adorned in the same manner: 
 apical se-jmeiits frinjrcd with pale (foldeii piila'scence ; under side pale rufous. 
 shiniiiiJ. tliiel.v luinctiired. Length .").."> (I.. "i mm. 
 
 Hal). — Mexico. I'rof. F. Smiiicliriist. 
 
 
.;* 
 
 204 
 
 ('IIAIU.I-> A. HlwVKI 
 
 MpliirroplilliHliiiu Hiiiillliiiia Smith. 
 
 F«'mr(/('. - Fcrriiuiiiiiiis, cloNfly roven-cl with NtroiiK, floiiicalt* imnrtiin"*, thiiw- 
 (111 thf iiliiloiiicn riiiiiiiii); iiilo striic ; the cyt's, tips of innixliltlfs iiikI th*- llaifi-lluiii 
 Murk; tin- ic(is t'liwoiis ; the thorax roiiiMicil in front, iiarn>wc<l |>o»tt»-riorly. the 
 sidcH iTcniihkttMl, thf lutcnil margins of the nictuthonix crviiulatt-il ; alMlonicn : 
 the a|iicul niarv'ins of thf m'^iih-iiIs fiiscoiiM, thus*- of tlit- fin<t and !<«fon<l friliKi**! 
 with lihick iMilic.Hccncf. Ihr four apical margins fringc<l with (*iiicr«-<>ii!i |iulie»- 
 ccnci-. I.i'iixth 7 It nun. (Smith.) 
 
 1I»I).— Mn.«<.«*a('lui.>*t'tt.i. - - /■• 
 
 'Phis species is very like tlie S, firtuiffittn of Fiihricitis. Itiit is eiisily 
 (listiiiiriiislied l)y its ciiiii-se >ciii|)tiife, aiul l)y Imviii;.' the ha.M- of the 
 iilidoiiHii lifoad. wliefeas in S. I'trnif/ata it is imieh uarmwe*! at the 
 liii.s'. This species varies iri'eatly in size. 
 
 N|»liii>r»|»lifliHliiiii hrnxorin ISIalv< . 
 
 AVnifi/c — Head Hiih<|uadi-atc. posterior ant'h's ronn(h-<l, cloM-ly n-ticiilatfil ; fai-f 
 and <-ht»i\s Idack. vertex ihirk eliestniit lirown, tiiiiiiy elothnl with short, erwt. 
 Iilaek hairs; antenna- lilaeki^h hrown : eyes round, prominent : thoRix <(uadniti-, 
 coarsely roticiilated. slitihtly constricted at middle, the «li.sf dark ferruKinous. 
 with scattered, erect, l)la<'k hairs; metathorax abruptly trillu-ate; le^s hiaek. 
 clothed will) scattereil pale hairs, interme<liate and posterior tihiu- armed with a 
 row of sjiines; alidomen ovale, hasal segment reticnlati'd. clothed with Mai-k. 
 its apical nwuvin fringed with liri>,'ht ferru;:inons pnlK-M-eiK-e. s4-<-on<l s4-);nient 
 ver.v linel.v punctured, fcrru^'iiious, deuselv clothed witli pnlx-M-ence of the same 
 color, interspersed with sil ver.v hairs; the remaining s«'>{ments hhiek, friuffeii 
 witli |(ale "jolden pulie.-cence ; under side closely puncturetl, latentl c-arina- tlis- 
 tinct, ventral sej^nients frin^'cd with mixed hhu'k and white hairs. I^-ii>2tli !) mm. 
 
 IIal». — Te.xiis. 
 Allied to -S'. iriico. 
 
 N|»liU'ro|>lilli»liiiii iii4»iilivHKH (rcsson. 
 
 /Vhki/i'.-- Iiulous, or nifo-ferrujiiiious, hrinhler ahove. which is clotlu"*! with a 
 «liort. dense. appres.sed. sijk.v red iiuliescence, ver.v dt-n.sely hut not ciiiirs«d.v punc- 
 tured ; lieneath more or less tiii)fe<l with fuwous, with a silky <H-lipae«'«iiis )iul>e.s- 
 I'cnee: head lar;.'e. i|Ua(lrate. a little hroader than the thorax, the vertex has a 
 I'cw scattereil, lonj;, lilackish, creel hairs, the cheeks and month more or less 
 tinned with fii.scous; eyes small, rounded, entire, convex and |>olishe4l : inandi- 
 liles also polished and Mack at lips; anlennii- reddish at Ui.s*-. the s4-:i|M- with 
 ochraccdus puhcsi-encc ; the llav'eliuin rul'o-piceous ; thorax short, verj" hriKid and 
 iruiK-ate in front, sulicordale, liein^ dccplv stran>:ulated on each side l)ehin«l the 
 middle, the apex truncate and very abrupt ; upjier surface red, or fernii^inous : 
 ihe sides, under surface ami nietallici:-,ix hehinil often more or K-s.^ fu.seoiis. .some- 
 times aliuosi Mack ; lateral excavation <leep, sunnith and |wilished : posterior face 
 of thi' metathorax sliiihtly concave, (liuly sculptun-d, sometinu-s shining: sides 
 of thorax and summit of metathorax sometinu-s with a lonj;. erect, fuscous pti- 
 liesceiu'c; lejfs Idack, sometimes more or less pieeotis. elotlu-*! with a i:litterin>: 
 ochraceous puhescem-e, hintrer and more den.se on the coxa- and femor.i In-neath ; 
 ahtlomeu larjie, ovate, broad at base, gradually luirrowed towanls the a|>e\ ; lar{;e 
 
 tti 
 
NOinll AMKKH AN IIYM KNolTKUA. 
 
 •J.>.) 
 
 iiiiii. 
 
 ith a 
 l>iiiir- 
 u1h,'S- 
 has a 
 r Ifss 
 aiuli- 
 with 
 I aixl 
 i«l tin- 
 nous; 
 
 AOIIR'- 
 
 ir fat-e 
 ; sides 
 IIS pu- 
 ti-rinjJ 
 K-atli : 
 larjfi- 
 
 liiisiil scuiiiciit alxivf ridtlicd with a slmrt. flriisc, apprcsscil, rcililish piilits<-cnff : 
 rfiniiiiiiiiK st'^iiicnts alxivi- aii<) I'l'iicatli friiii;)')! with a loii^', ilfii.'<)', pale, iM'lira- 
 ccoiiH, or ciiKTi-oiis piilirsiMiicf. wliirli also covci-s tlif larv'<' vfiitral M'^niiiit ; tin- 
 a|iii'ai Ht'Kiiu-iits aliovc aii<l tlit- vciitfr nitirciy is oftt'ii more or icsrt fuscous ; tlu- 
 no(h> is very liroad, lit-iii^ nearly as hroad us the liase of the s«'cond sr^iucnt. 
 tiatlciicd. soini'tiincs Mark, with Idai-k pulM-sniicc, luixcd on thr ^ido with 
 ofhracfous. LchkiIi •".•"> 13 nun. (Cri-sson.) 
 
 Hnl). — ( 'ulnnido. 
 
 TIh' ikmU' of the alxloiiK'ii iii this s|)«'cirs is ditft-n-iitly slia|i<'(i troiii 
 that of any of the pfcccdinjr siH-cics. l)»'iiiir as hmad as the hasf ot' 
 the laru:t' second sctriiiciit, whcn-as in all othns it is rather small and 
 narrow. 
 
 NpliirroplillialiiiH liiiciirioNn Smith. 
 
 Femnle. -lihwk : th<' li-us ffrrticinous. adorned witli lirit'lit L'olden viliow pii- 
 liesci-nt uiarkinj.'; head larue, wider tiian the thorax and suhijuadratf. ahove 
 eoVere<l wilii golden colori'd pulx'seence; tile antenna' oliseurely ferrUL'illolls '. 
 tliontx sii);iitly narrowed liehind, atnive with k<>I<1i''> pnhescence ; thi' triineatioii 
 of the luetalhorax and a suhtrianuuhir spaee in front l)hi<'k, tiie coxa' and tips 
 of the femora and tiliia- Mack: ahdonien with the liiisal se;;ment hiaik : thr 
 second with u'oideii lailieseeiice, a st-iiiieireular spot at its hasai mar^'in in the 
 middle, a somewliat annular one on eaeli si<le and its apical maruin with a hroad 
 fascia that is widest in the niid<lle, Idack : the following se^nnents with |Nile 
 ;riilden yellow |)ulieseence. Length r.^.,~i mm. (Smith.) 
 
 II 
 
 al). 
 
 M 
 
 exieo. 
 
 NpliirroplilliHlniH vnlpinn Smith. 
 
 /•V/iiK/f.-- Hlaek and densely piihesceiit : the head with lon^r, suliereet, yellowish 
 white pnhescence; tlie thora.K covered with similar piiliesceiice and having an 
 ovate tuft of Idack on the rlisc; tlie ahdomen with a lar^e. semicircular. Idack 
 liulicMeut s))ace at the hase, then a hroad hand of yellowish whit<' followed hy 
 one (d" Idack, the a|K'X lieinji whitisli, exi e|)t the apical se>;meiit, which i> Mack. 
 I.entrth 1 1 mm. iSinith.) 
 Hal).- -Mexico, ( )ajacii. 
 
 N|»liit'ro|»li(hHliUH 4l«>rilirla Smith, 
 
 FcHKi/c— Head, aiiteniiH', lep* and ahdomeii lihu'k ; thorax femnri'ioi'^ : 'lead 
 and thorax ruirow, the former tlie saini' width as the latter, which is elongate, 
 with the lateral mari-'ins nearly parallel. lieiiiK very slijihtly narrowed in tlie 
 middle and rounded anteriorly and |>osteriorly : the le^s with a thin, pale puln-s- 
 cence ; the spines at the aiH-x of the tihia- and also tliose at the apex of the .punts 
 of the tar-i pale ferru;jinous; the ajiical margin of the ha,sal segment of the ah- 
 diunen. a lar;{e olilon^ patch on eacli sidu of t he second se>;ment at its lia.s«'. a hnmd 
 fascia on its apical niHrgin an<l tlie t'ollowiii); senuicnts covered laterally with 
 yellowisli white pidu'.scence. LeiiKth 1,'{ mm, i.Smith.) 
 
 Hal). — Cent nil America. 
 
 N|>liH'ro|»litliHlniH inelaiioholi<'n Smith. 
 
 Feinnle — HIack, with the thorax more or less ohs«-iirely hmI ahove and witli 
 l)Uick and white pulK'Scence ; the thorax ami alHlonien rugose, the former hidcn- 
 
t 
 
 •_'.')(» 
 
 <iiAi:i.fr> \. m.AKK. 
 
 tail' (III I'iii'li side : tlii' iiirtiithitrHX fl<>ih<-<l irith linii; whit*- iiiiIm-m'ciiii', ii< wrll 
 its the intci'iiicitiiitr iiikI |>ii^<t*Ti<tr li-u^ ; tlif liui-al «);»>*'' ^ "' tin- i^ImIoiiii'M. tlif 
 .'ipiciil iiiaruiii ut' tli<- mmihmI S4'^iii<-iit and tht- tliini •■ntin-ly with Iniit; wliitt- |iu- 
 lifM-i'iicf ; tlif Nfciiml si'miiciit with a laric*- Ma k liift : tin- a|ii<-al Hf^inciits i-ii- 
 tircly rltitlifd witli Mack |llllM•^4•^•lu•«•. Liiiinh II Hi iiirii Siiiith.) 
 
 IIll!). — St. Doillill^'d. 
 
 N|»liH'ro|»lillinliiiH nrHn«*oi4r«i Simtli. 
 
 Friiiiih'. IJIark ; I he \irl<-\ and a vnm-inMil.ir -•["■t ui. tin- t 'orax in iVnlit iif 
 Iii'IkIiI riil'ii-CulviiiiK |iiil><-si'<-iii't' : tin- lii-ad and iliunx lM-ti<-alli witli white pcIm-k 
 iiiicf : a --iKil on farli -^idr nl !h<- tn<'iath<int\. two t.vati- nni-s nn ttf w luncl •>^^)•■ 
 nii'iit of till' alidiinii'ii, a narrow faM-ia on it-> a|>iriil inar^iin. tlic ': ird M^incnl 
 and tin' I'ourtli latt'raiiv i-oviifd with hriidit. lattf, ycllowiitli white |inlii'<ti'i':n'i- : 
 t hi list III' till' thorax and alMlonn-n with 'dark |iiilH-M'fnrr . the h'L:> have a 
 liriiihl pale pulieMeiiee, the |M>N|erior ('< imira with Idaek piiheM-enee at their apex. 
 I.eiiuth lit iniii. I Smith. I 
 
 Mall. Niciifiijrtiii, St. .Iiiaii ''i'l Siir. 
 
 M|»liii'r«»|»li(lialiiia ■•iti<-r«M-t'|»tiMlN xmih 
 
 Fiiiinli. (lulheil with levriiKiiioii» pul«-?x^'ie«' ; head and alHhinieli nh-enre. 
 •' rrll^'illllU> ; tlmrax hlaik ; iiead wider th.in the ihonix. >iilM,;;...driile, llie ilieek- 
 armed with a sharp "pine : lliethontx short, iiarrnwed iH-liind : the melallimas 
 with Idaek piihesieii ■ I.eiiL'tli II mm. Snn.h.) 
 
 Halt. — < )ri/.iiliii. 
 
 M|»liii'ro|iiillinl..(n iiiiinitirii .Smith 
 
 I'liiiiili Itlai'k. with riisiy kiojden s|>ois : h<-:id narrower than the thoiax ami 
 loxeri'd alioM' with rusty uohleii piilM-M eiiii- : iM-neath. and aliuiitn the thorax and 
 al.iloineii lieiii'ath, tlie ;iiiliesiene«- i« |«le yellowish white: tliorax with Mai k 
 piiliiseeiiii- in front and with rii«ly n-ti'.hii U hind, the lalier partly roveiiiiK lln 
 "iiii's III' till t nun at mil. \\ hirh is lilaek in the niiddl'- : the le);s with a wiiitish pii- 
 Im seeiire ; a''doiiien with Maek pii^x-^n-a.-e an«l with two ovate ileep. iwhriieeolls 
 niaiiihe (I the hase of liie seeond w^'nn-nt ami two iariter ones towards its apical 
 inaruin : tiie iiiiriilie with rusty K'dden piiU-so tiee : the I'mirth ami liftii seu- 
 
 lliellts with iii'liraei .Ills pllheseeme in thr iiiiildle Length !l I.'i mm. iSmith.i 
 
 llali. Mi'xicii. 
 
 ^|»llll'ri*|»lllllMllllM «lll«'MlliN .similtf 
 
 /■'r mil If. lilaek. I'lotheil with Ma^k piiiMxiin-e : the ':ead aliove and a liioad 
 transverse li.ind on the thonix. whii h i.irves s|j|{litly liMekv.anis. of hriKlit v'oid 
 rohired pnlieseeliee : the seeoml s4-|;meiil of the alMlonieti |i rrU)fi'nillH aho\e. and 
 
 haviiit! at its Iiii.m' a larxe. siilNivate. Ida4-L iiuln-M-enl inaeiila: uImi smaller ovale 
 iiiai'iilie iiiiieeit laterally ahoiit the middle of the ««-Kment. the apical inaruiii of 
 the se);nieni and iilsii the third M-({menl hliiek : the hiack hands not usuully e\- 
 'endiiik' to the lateral margins, which have 'ilvery white piilN'Mct'iirt', HJiniiar to 
 thai which I'iolhes the t honix heneath and frintc**" the M-unients of the alMlonieii : 
 the fourth, tifth and sixth s4-){nMMits have ({iddeii i-olored pnlMftcence ahoM-, the 
 llftli with more or Iohn of Mack laterally. l<fUKth I.V'.^) nun. iSniilh.) 
 
 
 il 
 
 al). ( )!i/.al)a. 
 
NOinU AMKKK AN II YM KNOI'TIOKA. 
 
 ■X 
 
 Nliliirroikhllinliiin N«>|inratn Smitl). 
 
 FfiHiili'. Ilt'iid iiiid iiliiloiiicii Mack; tlinrax iinil Ic^s t'crniKiiiiius ; tlir lirail a 
 littl' iviilcr tlian the tliorax, sli|;lilly narniwi-d iiinl riimulcil lii'liiiiil: the llmnix 
 Hoiiii'whut tl(l<ll«'-sliii|ic<l ami tiiit-ly ninitsi' ; It'jrs iil)sciircl\ ffrniuinoiis ; iili(|ciiiirii 
 with II sluti'|i carina in liic uiiildlc t'ntni (lie haiic to the ii|h-\ id' tiic second sc^- 
 ■iKMit ; the margin of the l)asjil scunicnt and iin ch)nt;ut<' uiiKiilar s|)ot at tlic hasc 
 of the Hccoiid .sc|;int'lit of silvery white pdlieKceliei' : the second scKHient with 
 two oviite, lUihesceiii, |iah- yellow niaciilie; the following; HCKnienls with white 
 pllhesi'ence. Length (i..*) S..') mm. (Smith.) 
 
 Hal>. — Mexico, ( )ri/iil>ii. 
 Mliliirroplilhnliiiii l»luii<liiiii Smith. 
 
 /•Vmd/c. l''crni).'inon.s ; the head and thorax (lindy rnyose ; ihe lluKclliim of 
 the antenna* and the tips of the mandiltU's lilack ; the head wider than tiie tho- 
 nix and Mil>i|uadnite ; the latter tlddlcshaped, its niiTKiiiH cieniilaled ; the apical 
 margin of the haxal Me^ment of the alHlomen, and *iu- middle of tlie li:''<tl maruin 
 of tin .M'colld « ith hrijlhl uoldiMl colorid puhoceiice, with two ovate .-;if i.s of tlw 
 same color ix'ar the apical margin of the second se^mciii ; I he apical margins oV 
 
 •lie rest of the senmenls with hrijihl jtolden pilht'scel a lil.'ck spot lietween 
 
 the ovale niaenlie. LciikI h (!..'> 7 liim. Smith. I 
 
 Ilal). — Mt'xicii, ( )iiy,iilia. 
 
 (il'lllis I, 
 
 >IIOTOI>NIN Itlak. 
 
 litMly imicdlofdii.-!, siiidotli iiiiti sliiiiiiijj; ; liciid t rnii!< verve ; eves 
 lar^e, I'liiiixl iukI j>i'itiiiiiieiit ; ocelli lar^e ; iditeiiiiii' loii); and I'leiiiltM'; 
 hasal joint of miterior tiii^tis (lee|>ly einaiirinate ; tliora.x niiii'owtd 
 posteriorly : win^s hyaline, sonietiines slijriitly ciotided. sti}.Miia pntiiii- 
 neiit ; alMJonien spai-sely elotiied with pithesceiice, l»a,«ial .•.e^rnicnt Miore 
 or less |H;tiolate, upe.x ol" male t'tirnislied witli two iniiiiitt; recurved 
 spines. Keinale unknown. 
 
 Tile species may lie talinlated as follows; 
 
 III road 
 |l ^'oid 
 
 '. aiitl 
 ovale 
 
 iin of 
 II y ex- 
 
 liar to 
 
 Imieii : 
 
 the 
 
 Aliiliimfii iteiiiiinle. 
 
 H'l'iMM H'i(h Iwii HnbmitrfiiiKil crlU. 
 
 NViiitis yellow, with fnscons spot on posti rior iiiarKin IIK'ikIIch. 
 
 WiiiKx siihhvaliiie. fiiliijiiions spot III! posterior margin «irixiiliH. 
 
 Head hliu'k, thorn X honey yellow, tirst alidominul seamen; rufo-ic-laceoiis, 
 
 wiiiKs ample llokoilllN. 
 
 Second lilidomiiial seunieiil oNirsely piiiietiired ; anterior « iil' liifa-ciaie, 
 
 with dusky on apical liali' tlnilHIIN. 
 
 AlMlomeii with pale yelliovisli piiliesceiiee ; win^is faiiilly y>'lli>wish ; 
 
 anterior pair with dusky s|mii on anterior margin. Iiiiic4»l«»r. 
 
 Wiiii{H varied at apex with dusky spots; apical se)<iiientN of alMloiiien Idaek- 
 
 ish, with loiiK while piiheseeiieo ClnrH. 
 
 TKANH. AMKK. KNT. HOC. XIII. (33) MKPTRMIiKH, \)*l^i. 
 
2.')H 
 
 (ilAIM.IX A. iir.AKi:. 
 
 AImIiiiihmi sIciiiIiT ; licail scarci'lv wider tlisiii tlinrax 
 
 |.;ll 
 
 tip: 
 
 of fciiHini lil.ii'ki.tli. 
 
 iiK'lfiniiNa. 
 
 Alxlniiit'ii slciidcr ; \viii|;s Willi an a|>i('al fiisi'iiiis cliiiiil IIK'HipON. 
 
 First -<>Ki>iciil of alMlotiK'ii i-l'iimalr |iyril<irni : wiii^s xvitli u ilistiiici 
 
 t"il>r<>ii» fliiiiil lifforc llic apex. 
 
 H«'liVnK«>i. 
 
 Ilcail iiitrniwt'il liciiiiid the ryes, vertex niKiiNe..triailKlllurlM. 
 Win^H witli a faint I'usi'nus cliiiid apically, stiiinia lyiuK almost entirely 
 
 u'itliiii the niaru'ina! eell. 
 
 lllt«'IIMIIlll. 
 
 Win;;s I'nseiiiin, first al>diiniinal segment siilipyrifnrni it'rrilKilK'll. 
 
 Willis witli a distinel I'iimiiiis eloiid l>eyiind the nniruinal eell: alidimien 
 hiender, peliiiU- and sercmd alHlnniinal se);nient eoarsely piinr- 
 
 tured lll«'lllllic(>|»M. 
 
 M(Mlerately roliusi. dark Imney yellnw ; wind's hyaliiH', marginal eell ovate 
 
 lanceolate, pointed lo lip, -.liunia I'nseous VOIK'Olor. 
 
 WiiK/K irilh Ihn'i' mihiiiiiiiiiiinl irlln. 
 Head, thorax and llr^t alxloniinal se;;nirnt lilark, with pale piiheseenee ; 
 niesothorax anil alidonieii rerruuinoiis, with K'nlden pul>e-<eenee 
 
 anterior win).' Iimadlv liiliuinons at api'x iaii|»«*rinliN. 
 
 Head rciiiniled. as wide as the thorax, holh with t'erruuinoiis pulie-.eenee. 
 third suliniarizinal eill narrowed lieiM'ath. it-, outer nerviire 
 
 nearlv .il.>ole:e ... CMlltrHClH. 
 
 Iseeiiiid >iil>inark;inal eell ri- lix Inu Imth rei'iirrent nerxiires. (lie third small 
 
 and (|nailrale lllllM'Olllu. 
 
 Witufs extendint' lie>ond the apex <•( alHlomeii. liyalilH'. slimna \i ry 
 
 lame Illliplll. 
 
 Winns yellowish hyaline. >ei'oni| Hnlimari.'iintl eell ver,v small, trianynlar. 
 
 stiiima laru'e Ililidn. 
 
 Larue; hody pale eastaneous; lieail enlin-l,\ lilaek : posterior t'enioni 
 
 hlaekish nIoHilor. 
 
 ISIaek, shiniiiK: wind's hyaline, ..tiKma hiaek iifrHlH. 
 
 WinKs I'aintly iloiided apieallx, stii^nia t'u^eoii-.. third niihmarKinal eell 
 
 sne'.ll and ipnidrate albipcN. 
 
 WinitH iiyaline. serond stilimaruinal HMiall, trian;.'ular. stiunui lartie, fiis- 
 
 etMis: hody shinin'.' NObrillllM. 
 
 I. a rue ; liody smooth and shining: winus yellowish liyaliin', sliuuui 
 I'liseoiis, first siihnniruinal eell as lar^e as the >.eeoml ami thini 
 
 eomhlned l<>pl<lui». 
 
 \ImIi>h>i'ii irilli llir tiinl iiiiil m-riiiul iihiliimiiiiil Hffimriilii iinnf or IfHH Kfimilf. 
 W'hijiK irilh two xnhmnriiiiuil iiIIk. 
 
 Ahdonien rohiist , hiad liroadir than tliorux, femora hlaekish (n|lHjoil. 
 
 Koluist : ahdomen with lon^. pah piilieseeiiee : wiiius hyaline, imnnieiilate. 
 
 iiiTViireH honey yellow K'IIIImIiin. 
 
 Willis hyaliiM'. stiunniand tu'rviires pah honey yellow JlimtH. 
 
 I' (d sulii|iiadrate. posterior an^h's rounded : winus velhiwiMli hyaline. 
 
 sliuma fiiseoiis, small HIllllN. 
 
 Ileiid round, as widi an li'e thorax ; thorax hIaek, elothed on disi with 
 coarse flllvoils plllieH<'<<liee ; Willis yulhiwish iiyiilim'. eloinled 
 
 ahoni the middle and apex rilMll(*n. 
 
 Head and thorax dark hone.v yellow, >lie former siiliiiiiailrate ; uiii^s 
 yi'llowish hyaline, murKinul <'i'll ovate birolor. 
 
NOKTU AMKItK AN II Y.M KNOITKKA. 
 
 2"){> 
 
 U<>l)ii.st ; t'liscofcrniniiimis ; win^s y<'llii\\'i>li livairiic lir>>t siiliinar- 
 
 niuiil rcll siiiiill iiiiil nari'DW HNtyniinx. 
 
 lioliiist, miit'iiriii lioiiiy yi'llow; wiiiif.s yfllci\vi>li liyaliiic, tlii' niar 
 
 tfiiiul (I'll Iti'iiailly iivati' lll(*OllM|»i<'llUM. 
 
 Kcail rniiiMl, \viii>;s hyaline, stigma larKc |>alr rusrniis, lyinu allu>l^t 
 
 witliiii till' iiiar;;iiial n'll Illilllltn. 
 
 WiiKjii irilh three Hiihiiiiiiiiiiiiil rell.i. 
 Frrruniniiiis ; licad round, imi as witlt- as tliiirux; winus yt'llciwisli liyalin( 
 inar;,'ii(al ci-ll nvatc, laniinlatc, Iniiicair at tip, third siilnnai- 
 tjinal cell iiarriwi'd licnfath, lis (inter ncrvnrc ncacly oIimi 
 
 Ictc ur«. 
 
 Third Miliniarcinal cell narrow, transversely ehm^'ate iinatlrate, I'olor dark 
 cas'.aneoiis, with pale |inlieseenee ; antenna' and h'ns paler: 
 ape\ of first alMloniinal se^Miienl nearly as hroad as the liase 
 
 of the seeolid <*HNtHnf>H. 
 
 Medium : head ldael<, elypeiis and iniindihles dull honi'y yellow. <<ine(>l 
 
 (irons with hody ; le^s |ialer Klahrollu. 
 
 .Second aliiloMiinal seamen' iinniacniate Il^ lllillU. 
 
 Hohnst. a)iical setinietilsof ahdonu'ii clot lied with yellow pnlx'scencc : 
 win^s yellowish, more or less taint l> donded, stiu'Mia pale 
 holli'V yellow IK'lllllUKIIN. 
 
 Kark honey yellow. shiiiitiK, api<'«l segments ol' aiidonien polished. 
 pale honey yellow liiisiilly. api<'ally mar^'ined with t'lisi oiis : 
 inartiinal cell hroadly ovate. siit;nia fuscous. .Hll(l«»lllillHliM. 
 
 ISriulit honey yellow, second uhdoiiiiniil seKiuenl willi lateral 
 hluck line |»alil«lH. 
 
 DIVISION I. 
 
 .11 
 
 l|M>M. 
 
 I'lls- 
 
 niint. 
 
 iunia 
 hird 
 diiN. 
 
 AImIoiikii more or K-.f.'* iM'tinlatc, ii.s in fio-s. 17 ami l-H; \viiij.rfi with 
 
 t\V(i .siil)iiiiirjriiiiil ci'll.-. 
 
 J 
 
 niate. 
 It UN. 
 
 i%ln. 
 
 aline. 
 lIllN. 
 
 with 
 inded 
 
 9l<*n. 
 
 wiiiKM 
 
 ilor. 
 
 FiK. i: 
 
 l*llOlO|»NiH ill«>ii«llca Itlakt 
 
 FiK. l" 
 
 Mule. I'liiforiii liiowii lilack . head round, den.s«'ly |Hitictured. thinly cloiind 
 with scatti-reil, lonu. yellowish while huirs . eyes round. |Hilisli"<i. |ironiiiieut 
 mouth clothed with yelhiwish liiiirs; aiitennie riit'i-rus4'ous. itM Iimik •«» the lo-wi 
 liiitl thorax : tliurHV ovale, narrowiHl |Mist<riorly, clos«dy piii-i-tur»Ml, cj.iihed with 
 yellowish white hairs: siiles, metiitlioni\ and scutellum rM'cuhite, the hitter 
 finely; tejjuhe lonvex, |i<ilislied ; win>ss ample, yeljowinh i><»lint: puler »U«!l 
 the it|H'\ ; umrviinil cflj eloitmtie ovate, roinided til tip. Ilrst siiltriiariciniil eloriicart*' 
 sulM|Uiidr.'ite, (lointed towards liax' : seciuid sliort, iililii|nely sulH|iiiiflrute. it.« hiMal 
 livrvure sinililte: tliird .>hs<i|e|f : ctmtlil cell modcrutely w nl. stiiciitM holM'.% yel- 
 
'*<^gf<MMH6«i 
 
 SiSi 
 
 'Jdo 
 
 (•|IAI{I,l>i A. UI.AKi:. 
 
 Iiiw. iiirviin's y<>llnwii«)i : a round fiiHcoiis cliiinl iH-iicath tlif cells ; Ic^s MarkiHii. 
 thinly I'liitlx-)! with Ioiik, |>alt', yfllowish inilirsccncc ; alulnnicii clnnKatr oviito, 
 liasal M'^'iiii'iit I'anipaiiiilatc, liiu'lv piinrtiirci), second scKnicnt sliininK. minutely 
 and nniolely punctured. sparMdy clotheil with yellowish wliit(! hairs, apical 
 nuir^'in-< of all the seunients I'rinjjed with lonn, coai"s«', yellowish white puhcs- 
 cence : ii|H'\ armed with two lon^t itcute, recurveil spines. Length 11 14 mm. : 
 expa'i>e of win^s "Jl '2't.'t mm. 
 
 Hall. — Nt'vatlii. Collt'ctioii of Mr. Norton. 
 
 l*liof«|»MlN oriztihti Itlake. 
 
 Mall. -Murk ; head round. a.s wide as the thorax, finely punctured, thinly 
 clothed with ere<'t vejlowisli haii-s; eyes ver.v lariie, rouml. convex ; ocelli jironii 
 nent ; antenna- pit'cnus. as ImiK as the head and thorax : thorax : pro- and nieso- 
 tliorax coarsely punctured, the latter with two 'onuitudinal impressed lin"«on 
 t he disc and two short imes near the le);uhe; nu'lathorax rounded, coin-sciy re- 
 ticulate, with three short, sharp, longitudinal carina' not extendint; to the middle ; 
 tetjulie round, convex. |Mplished ; wiii^s ample, yellowish hyaliiu'. nu«rt;inal cell 
 elonKafe ovate, first sulimarKinal lout; and narrow, se<-ond suhi|uadrate, pointed 
 towards the liase. reciivintr the first recurrent nervure liefore the middle and 
 having a faint fuscou> clouil divid4'd liy a loii).'itudinal tran ;iarenl line; a lar^'c 
 f'uscous cloud in the iliM-oidai reyion ; apex slif;hily <'louded ; lejis hiack, femont 
 ilotlied with loiiH scaltcrcil hairs, tiliia' and tarsi with yellowish puliesceno-; 
 alxlonien elonuale ovati'. petiolate. petiole sv^ment one-third the length of entire 
 alidonu'li. shining, f'eehly punctured, thinly clothetl with erect hairs, second sck- 
 ment polished, haviui; a few very minute punctures, interspei-sed with scattered 
 hairs; lateral carina' distinct. <'lothed aliove an<l lietu'alh wiili dense white pu- 
 liescence; apical margins 4>f the scLMueuts i-lot hed with lonj; yellowish puliesceuce ; 
 umler >ide poli>liiil. Iia\ ii,.!{ a few scattiM'ed hail's. Length 111 nun. ; expanse of 
 wines ','1 mm. 
 
 I liil). — Mf.\ico. 
 
 l*ll««lo|»NiM llokoilliN Itlake. 
 
 .W(i/< . -Head Mack, shiiiini.', pum'tures very minute and hearing a few scattered, 
 erect, yellowish liaiis; eyts larne, round, convex; ocelli prominent: antenme 
 and niandihies dull riifo-fuscous, tips of the latter hlack ; ihtuax honey yellow, 
 shining, closely punctured, disc of iiie.sotlio|-ux with two lon^iitudinal imprcHM'd 
 lines: metathorax nainded, coai'sely reticulate, the di.s<' Inning three short Ion 
 eitudinal carina' not reaching the midille: win^s ample, hyaline, marginal cell 
 cloiif^ate ovate, pointed at tip, first sulmuiruinal Ioiik 'id narrow, ,Heconil elongate 
 hulii(uailrate, its hasiil and apical nerviires sinuate, receivinu the recurrent ner- 
 vure liefore the middle; stiuma prominent, fuscous, its ajiical half within the 
 marjiinal cill ; Wns fuscopiceoii-N, thinly cloihed with pale hairs; alidoineii elon- 
 Uiite ovate, petiolate, petiole pyril'orni, rufo testaceous, paler at luise, clomdy puiic- 
 tured and sparsely clothed with erect hairs; seciuid sejiiuciil hlack, polished, 
 finely :ind remotely punctured, interspersed with lonir, sratteieil, pale hairs; re- 
 maining seunients hlack; apical mart:ins ciliated with iriilteriiiK yellow piihes- 
 ceiicr : umler side dark fuscous, apex armed with two minute, acute, recurved 
 spiiii's. Length II mm.; ex|iaiiHe of wiiius IT mm. 
 
 Halt.-- Ari/oiin. 
 
 Ill soiiu' s|H'citiH'iif< the IicjkI is hoin'v yt-llow. 
 
NORTH AMi:iU(.\N IIYMKNOITKHA. 
 
 2(51 
 
 ■How, 
 
 liiU- 
 
 mu 
 
 iltf 
 
 It nti- 
 
 111 
 
 tlu 
 
 llllllC- 
 
 l*hoto|»NiN (laiiaiiN lUakc 
 
 Miilr. I)ai'k li<iiu-y yrllow, :liiiil,v ('lotlicil witli rrect wliilt- liairs: licail niinnl. 
 fint'ly piiiicliin'il ; i-yo roiinil. laruc. prDiniiicnt ; aiitciiiia- t'lisciuis ; tlionix cloii- 
 KUtr ,siil)i|uailrati', roiiiiilcil in front, rlosdy iinncturi'ii, iliHc of nu-si)tii<ink\ with 
 two li)n).'itii(linal iMi|iri'.s.s<>(l lin'.-.s. sctitfllinii nmndi'il, Hnrly rfticulutc; nicta- 
 tliitrax niiinilly triinfatc, coarsciy rt lirulali' ; tfjiulii' convi-x ; wiims liyalinr. 
 faintly iritlcsccnt, niarK'iiiai cell t'ltin^ati' ovatf, m'I'dikI suliniarxinal oMiiiucly 
 .snl)i|nailnit(', iiniiitcil towanlN husc, itx liasal iicrvurc simiute, ri'ci'ivinn the rcriir- 
 n-iit ntTviirc iM't'orc tlf middle; ncrvurcs lUM'iins, a pale fiis<-i>us cliiud cxtindinjj 
 from the Hti^'nia ami gradually widening to the tirxt a))i<'al cfll ; tlinr faint 
 Htn-uks iif the sjinu- at apex ; Irni* fuscous, ikiIit towanls tlic joints, fi-niora llmly 
 punrtiiri'd. '■ inly clotiu'd witii wliitr liaii-s. cairaria pale; alxloini'ii ovate, prtio- 
 latc, pt'tioit arscly ii'lii'uiatc. second sejjnient riosely punctured, apical seg- 
 ments frintsed with whiti.sh puliescenee; under side same as alxive. Leiijith 
 !i mm.: expanse of win^s If! mm, 
 
 ]llll>,- Tcxn.s. 
 
 A vjirifty Ims tlic ltii,sul s»';f|ii('iit iiiofc fluii)_fiit»'. 
 
 This .•*|t('('ic.s cldst'lv f«'s('mltlt'.< /*. r/drn ( "icssnii, l)iit imiv iu' ca.'sily 
 (listiiiiriiislicd l)y tlic tfiiiisvcr.sc t'li.-^coiis cIiukI in tlu- wiiiL's mid tln' 
 (•(liii-sc idiDctmiiiL'' of the iilnloincii, 
 
 !*liotO|»NiN iiiiicolor CresMin. 
 
 3/»//i'.— rniform pale honey yellow; lieiid ratlii'r larjie, polished, with line, 
 mattered punctures, and lonji, thin, yellowish hairs; eyes very lartje and promi- 
 nent . ^liichtly einarKinale hehinrl ; ocelli also laru'c ; face much depressed lieneath 
 the antenna'; tips ol' mandildes Idack ; antenna' not rjuite a.s lone as the head 
 and thorax, lu;eou> yillow, the llai.'c|lum opaipie ; thorax denx'ly and deeply 
 punctured, clothed with a Iouk. thin, yellowish pulx .scetne ; mesolhorax with 
 four loncitudiniM impressed lines, the lateral oneahhreviated hcfore ; nietathorax 
 rounded ahove, rather ahrupt on the sidi's and heliind, coarsely reticulated and 
 clothed with a loni', thin, wiiiiish puhescence; winns iar^e, yt'llowisli hyaline, 
 slightly varied with pale fuscous, the lar^iest and <larkest mark hein^ on the 
 posterior margin heneath the stigma; nervures yellowish, sti(;ma fulvous ; mar- 
 Kinal cell moderately lonji, the lower nervnri' gradually curved to the apex, 
 which i* somewlial pointed ; two suhmar^inal eills, t he first narrow and eliuiKalt , 
 the second rather larye and sulH|uadrate, reci-ivinu the lir><t recurrent ner\ur<' 
 
 hefoi'c the luiihlle. the ha.sal nervure an|.'ul 
 
 Icjis c(dor of the liody, tihia' and 
 
 tar.si paler, elotlied with whitish puliesccnce; ahdoiinn cioniiate ovate, petiolate. 
 smooth ami pidislnd, poii'ti'd at tip, clothed with hriuht ,\ellow puliesccnce, 
 rather sparse on the second senmeiit and dense ami rathtr loim on the apical 
 sejfiueuts, Vthii'h are tinned with yellow ; thi' tir--t or petiole sejimenl elonjiate. 
 sleniler at hase ami dilated towards the tip; the puhc'^ccncc on tlx- twohasitl 
 si'fjim'Uts whitish. Length I',' 1,"> mm.; expanse of winns U '.i'.i.'t mm. 
 
 Ilnl). — ('iiliroriii)i. ( Utiroii 1{, nstcii Siickcn ■ T 
 Tl 
 
 \V(i siicriiin'iis. 
 
 lis IS closclv al 
 
 licil to /'. I'inirii/iir, tiiid wliicli dilfiis iViini this 
 species l>y the ihirker coliir. Ity the hyiiliiie wiii^s. tiiid l»v liie piilies- 
 ceiice more s|»iii-se and entirely whitish ; tlie piilM'.xeeiice of the \trv)i- 
 eiit species is of a lH>iiiilifiil o;ohh'n yelhiw, except on the nietathorax, 
 h''fs and l)a>e of the ididonieii. wliere it is wliitish. 
 
'J«i2 
 
 <IIAKI.I> A. Itl.AKK. 
 
 l*li<>l4»l»NiN rlnrn Cnssuii. 
 
 Mult. I'liifcii'iiily liiiiicy yrllnw, |inli>liiil, rlotlxMl wiili it Imitt. tliiii, wliiti.sh 
 Inilx'Hi't'iin- : vyvs riillHi' liirj.'r, I'liiiiiilcii. ciiliir, mtv niiivcx and MwkiHli ; nrclli 
 liirK*'. •■iicloscd l>v a lilackiHli N|iiit ; ii|ih of inaiidililcs iilso lilackiNli ; uiitcinuf iim 
 loii^, III' ratlirr li>iit;t'r tliaii tlic lirail ami tliiuax. Iirownisli, lioiu-v y<-llii\val Ita.si': 
 tliorax ilriiM-ly iiiiiiclurcil ; nicMiilnuax )>(ili>li<'<l. witli a ft'W M-atlfi°<'<l iiuiicliirrs 
 uiul t\v(i <li-f|ily iiii|ir<'s.s('il liiii):itn<iiiiiil lines; nictutliiirax aliniptly roinulfil 
 Ix'liitKl. I'diirscly ^i'til'llll^t<■, with a Ih'ihkI. Miiootii, shining n]Mirv on tlir niiilillr, 
 liiiiinili'il nil till' ^ill^^ anil iliviilnl iluwn the niiildlc l>y llirre shaijily ili'llnril 
 li)iiuitiiiliiial ('iii'inii- ; tr^iilii' Imncy yt'llnw ; wihKs ui-i|ilr. Iiyalinc. faintly tintfcd 
 with yrlliiwish. with tiiri't' I'lnnKiilc, liiiiKitinliniil. |ial<', I'liscoiis Ktrraks on tlic 
 a|>i('al niai'uin anil a lar^'i', pair, t'liscuns s|hiI iK-ncalh thi' mtoimI Miliinar^'inal ri'll ; 
 ni'rvnirs pale li'starcoiis ; stigma rathrr larK<' ainl lilai-kish : marginal nil short, 
 roiiiuli'il at lip ; two ilistiin't siihniar^inal cells, the seeoinl ohliiinely siilii|na<lrate, 
 reeeiviiiK the lli-ht reciiri'eiil iiervure liefore the inidille. the IhiniI nerviire sinuate ; 
 thii'il «iiliiiiar).'itial ulilileraleil ; li'|.'s sleniler, thinly riot lieil with pale piiheseenee ; 
 eiiMi' anil ti'oi'hanti rs lioin y yellow ; feinora ami tihiif, e.xeept extreme Imim' and 
 a|H'X. Iilaekish, rest of the le^s yellowish testaceous; alMloinen |M-tiolated. sniiMitli 
 and polished: the nmle or petiole .se;:nient elon;:ate. xlendi'r at liase and miieli 
 swollen at tips, and rloihed with a Imit.'. thin, whitish piihesceiiee ; larxe liaMtl 
 scKtiient hi^'hly polished, naked, except il^' apical niafKin, which has a Iouk, 
 dense iViiiK'' of w liiiish piilu'Miiiie ; riinaininK segments fnseoiis, densely dot hed 
 with a lonu. '.vhitish pulpesceme, more spars<' heiieulli. I.eiiKtIi ^••"' mm.; ex- 
 panse of win^s Id mm. 
 
 Hiilt. — ('(iloi-mlu. 
 
 l*ll4»fO|INiN lll<>li«*HnMII lllake. 
 
 Mull, rniform dark hnney yellow ; thinly clothed with erect yellowish liairn; 
 head rounded. shii\inu. Ilnely |iunctiired; eyes lar}.M'. round and prominent, as 
 Well as the ocelli ; iinteiime pale fnseoiis, except the sia|>e, which is pale honey 
 yellow ; tips of mandihles Idack ; thorax : pro and mooihorax closely punctured, 
 the latter with two short, I'eeldy inipres.seil lonuitndinal lines; nietatlnirnx 
 i-oiiudrd, coarsely reticulate; !i'^nhe ovate; wiims miHlerate, hyaline, mart^inal 
 lit! su'daiiceolate. first suhmarjiinal Ion;.', narrow and snhparallel, second suh- 
 ■.|nadrale, narrowed towards the lias<-, its apical nervure sinuate and receiving 
 the tlr-t recurrent lielore the middle, third ohsoh'te; stigma lanceidalc. dark 
 lirown; a faint streaked fiiscmis cloud in the discoidal region; lev's pale yp| low, 
 except the apices of the femora and tiliia-, which are pale fiiseiiii.s, thinly c!iillied 
 with pale hairs; ahdomen elonuaie ovate. iHtiolate. >niiHith, shining, Ihiidy 
 clothi <! with erct. pale, yellowish hairs, (H'tiidc as Ioiik as the second seKinenl, 
 UKKJeratcly punctureii. the latter lia\ iiiK a few very miinite M'atlered punetiireH: 
 lali ral carina' distinct, apical maruiii fringed with tine, while piiliesceiice, the 
 remaining segments niar;iiiieil with loiix, thin, yellowis!': hairs : ventral segments 
 s.ime a- ahove ; apex armed >\itli two loii^', acute, recurved spines. l^eiiKtli It 
 mm.: ix pause of win^s IT mm. 
 
 Unit. rt'XiiM. Mr. |{clir:ij.M'. 
 
 l*hoto|ii«iN in«>lll|M>M n. tip. 
 
 l/ii/r . riiiliiiiii dark honey yellow: head Iransvers4dy rounded, wider than 
 the thorax, niiiiutelv pnnctured and heaiiiiK <* l'< w scatle."!. pale, K'ill*'>'ii>K 
 
XIUMM AMi;i!I( AN HYM KNolTKlt A. 
 
 '_>(!:{ 
 
 Illlir^<. l>iiM' iif inaiiiliMfs |iali' Iuuh'V .'tIIow, tips ciistuiifdiis, rlotlicd witli ;.'liiiiT- 
 iufl imlx'x-i'iK'i', rlyiH'ii* riiiniil; vyvn, litruc rmiiKl. |iriiiiiiiH'nt ; aiitt'iiiiir : s<'!i|><' 
 |M»1«' luMicV yellow, rldllifil with Vrllow ^rrii'tniis |iI|Im-si'('II<'c, llnui'llllin yclliiwisli 
 riis4-iiUH: ilinnix rioiiuati' itvutc. sliulitly niiri'owi'il iiimtcrinrly. pro- niiil iiicmi- 
 tliiinix cliM'ly piiiK'tiirril, MK'iMtliiirux iililii|iiriy tniiK'utf. roarscly and t'liiilliuntly 
 piiiK'tiirnl : wiii^'- hyaliiic. witli a taint I'lisnuit I'louil lirlVirc llic aprx, iwu siili- 
 Miaruiiial itIIk, tlir inarifiinil rcll Mililiniatr, roiiiiilly Iniiii'at4' i.t tip, lii'st Miluiiar- 
 uinal larKc. <'l<iii(;al<- siili<|ua<lrati'. scconii siniiil, siiltc(iiii<-ul, )iiiinti'<l tnwanis tlir 
 hasi' and rcrciv inji tlir nTiirnni niTNun' mar tin- liasc; stijinia laix''. ">r<iipy inu 
 till' KifattT |>art i>l' tiir niaruinal rrlj ; ti't'iiiii' sniall, pah- Imnry ytllnw : jcu-^ 
 iinifornily pal<- Imnry yellow, thinly clothed with KlitterinK hairs; alidonien 
 elongate ovate, |H'tiolale, petiole loni;, pyrilorni, elo-ely covered with loiiilnent 
 punetureo, >ecoiid se^'inent finely punctnreil. third seunieiit with a narrow, trans- 
 verse, eastaneons hand on disc at middle, apical niaruins of the iil'th anil sixth 
 se);nients fringed with pale pnlH'scenee, entire a lid omen thinly clothed with erect 
 ulitterinu white hair-, vent ral surluce same as aliove. I.eiiKt h |i) mm. : expanse 
 ot' w incs 1 1 mm. 
 
 IIjiIi. — Aii/.idtii. 
 
 Ir thiin 
 liiiriiiK 
 
 l*llOlO|>MiM ll4>liVllK4>i lllake. 
 
 Miil'\ '. nil'orm tii-eou-, shininu. thinly clothed with erect whitish hair<: head 
 ronnded. a-, wide a- the thorax, \ciy liiiel> piineliire<l : eye> veiy hirue, ronnd. 
 prominent, as well as the ocidii : antenna' Mil eons, as loiiu a- the head and thorax : 
 tip- ol' the mandililes lilaek : thorax eloiiuat<', sniiparallel, rounded in front, pro- 
 ami ine-othorax very liiiely punctured, metatlmrax roiin<lly irnncate, coarsel" 
 reticiilatei) ; teKiihc small, honey yellow : wint;- hyaline, faintly iride-ceiit, hav- 
 ing !i la rue fuscous cloud .just lie\ olid the inaru'imil cell, darker towards ilie hase ; 
 maru'inal cell short, rounded at tip, lw<i distinct siiliiuartiinal cell-, the -econd 
 
 snlitrianxnlar. narrowed towards the ha-e and r iviiiK the two recurrent r.er 
 
 viires; ntiKimt as lonu as the iiiarKinal cell, which eiiclo-es three fourth- of it, 
 pule yellow ; lierviires hyaline; h'as pale ytdlow. except the feluurit, which are 
 
 flls 
 
 clothed w ith scattered loni; hairs ; trochanters hroadl v dilated ; ahdoineii 
 
 elongate ovati-, coarsely punctured, first or petiole Meunieiit more than oiie-ihird 
 the length of entire alidoineii, its apical half suddenly enlarged ami ovat<'. third 
 seKinenl iH-arly hiack ; scK'nients friiiKcd with pale liaii-s, the apex armed with 
 an acute, recurved spine, I.eiiKth i:t mm.; expanse of wiiiks I^ mm. 
 
 IIiil>. — 'IVxii.-, 
 
 Thift .xiK'cU'-i is cliKXi'ly iilliiil In /', niilxvnln ( 'iT.ssuti, liiit is irndilv 
 ilisiiiio'tiislictl liv liiiviii;: two siiliiiiiiiyiiinl cells iiinl tlu' sinlihii ilihi- 
 liitiiiii lit' the liii,siil sf^Miii'iit lit' till' iiImIiiidcii. 
 
 I*IioIo|inIn trlHiif(iili**'iM Kluke 
 
 Mule. I'niform dark honev mIIow; head small, suhtriauunlar, clo-el\ puiic- 
 tiired; eyes larKe, prominent ; tipH iif mandililes hiack : antetiiiii- tiavo-fiiseons ; 
 thorax ovitte. narniwed |Ki-teriorl>'. nie-otliorax with two longitudinal inipie— ed 
 lines, coiirsely |>uiic(iired : seutellum rounded, llnely punctured; metatlmrax 
 
 eoarw'ly reticulate; wiinfs yellowish hyaline. inarKimil <'«'ll ovutc loin late, (li>l 
 
 suhiniirKinal loiiu and narrow, secoiiil siilitrianuular, its luisal nerviire arcuate, 
 recfiviiiu the Hint rei-iirrent iieiir the lnme ; sti(;ina riiiiiill, fui'i-ouH ; Ickh rtifo Cus 
 

 264 
 
 CIIAKI.I-S A. lU.AKi:. 
 
 I'Diis iiliiMil t Ik' joinls, lliinly I'litt lu'<l will) scatlrri'il piih- hairs; iiliiloincii I'lmi- 
 iliHv ovule, |i('tiiilalt' ; liusiil ^(')!iiii'iit )sii))|ivrili>nii, mtiiiiiI s<-};iii('iit HliiiiiiiK, 
 iniiiiitcly Mild rt'iiHitcly piinrtiircil, lii'ariiiK' a frw M-attcrrd, loii).', pale hairs; rc- 
 inainiiiK hckiik'IiIs rriii).'<'il with hiiiK. pale piilK-scciici' ; apex fiiseutm. Length 
 tl iiiiii. ; I'xpaiisc of wind's IT iiiiii. 
 
 IIiili. -Nt'Viula. ('ullc('tii)ii i»f Ml. Nortdii. 
 
 Tliis species is easily ree(»;riii/,e(l l»y llie (liaii^filliir head. 
 
 l*liolo|»NiN ull«>iiuatM Hhikf. 
 
 .l/ii/i'. I'liifiiriii (lark hniicy yi-liow ; head riiiind, HhiniiiK : <'yfs larK<'. prnini- 
 ni'iit : aiitciiiiii- hmicy ycllnw; thur.ix chiiiKati' iivair, shiiiiiiti, tiiii'ly pinirtiircd, 
 disc of liicsotiiorax cifvalcd. sides riosely puiietiire<l, iiielatliorax riosely and 
 ttneiy reliciilale. (.'radiiaiiy roundly tnineate; win^s niodoriite, hyaline, with a 
 t'ainl fuscous cloud in the apical region, inaiyinal cell ovate, truncate at ti|i. lirst 
 suliniar^'inal laryc, se<'ond very snuill, sul)trian>;ular, receivinn the second recur- 
 rent ncrvup' liefore the middle; stiKUia lar^e, yellowish, lyin^ almost wholly 
 within the niar^'inal cell; tcKuhe miinite, pale honey yellow; le;{s pale honey 
 yi'llow, thinly clothed with concolorous hairs; ahdomen elonKHtc, petiolatt', 
 petiole one-third t he lenut h of t he ent ire ahiloinen, pyriform. densely punctured, 
 siM'ond se^'nieiit lincly punctured, third castain'ous; entire insect sprinkled with 
 erect whitisli hairs. Length !..'■ mm. ; expanse of win^sll mm. 
 
 II 
 
 alt. 
 
 exiis 
 
 M.iri 
 
 ii'fe, 
 
 l*liol4>|>NiM rt'rriiKiiK'H HIake. 
 
 .\fiili'. rniform ferruginous; head not as wide as thorax, tinely punctured; 
 eyes lui'^c. prominent; tips and upper edt;es of nuindihles hluekish ; thiuellnni 
 of antentne fu.scons, sli(,'htly |irninose ; thorax ovate, narrowed posteriorly, lueso- 
 ihorax with two lonuitmlinal. parallel, imprcs.sed lines; scntellum rounded, 
 clo.sely punctured, metathorax coarsely reticulate, Hanks puintured ; winus fus- 
 cous, nukruinal cell ovale lanceolate, llrsi suhnuii'Kimil small, narrow, .second huI>- 
 (|tni<lralc. receiving the (irst recurrent almut the middle, stinma snuill. fuseo-fer- 
 mninons; tcjiulie polished. <lark honey yt'llow ; le^s thinly clothed wit h scattered 
 lukirs; ahdonieii elongate ovale, petiolate, shining, thinly clothed with erect pale 
 hairs; ha.sil scKincnt sulipyriform, secoml minutely and remotely |iunctured. 
 LoiiKlh 1 1 mm. 
 
 Hall.- Nevada. 
 
 l*llOt<>|»MlN lll<>IUIli(>4'jlM II. sp. 
 
 .Wd/c — Head hhick. shining;. Ii-.insversely rounded, narrowed posteriorly, lut 
 widi' as thi' lln.iax and heuriiiK " '''**' erect, KlitteriiiK white hairs, minutely 
 punctureil ; eyes and ocelli larKe iiiid prominent; scape of anteiime |iale honey 
 yellow. Ilauellum slinhlly darker; face hem'ath the antenme honey yidlow ; tips 
 of mandildes lilackish ; thorax ovate, dark honey yellow ; pro- and mesothorax 
 tiiK'ly punctured, thinly clothed with erect pale liuirs, iiielatluirax roundly trun- 
 cate, coarsely and conlluenlly punctured ; wi'iij.'s hyaline, with a small fu.scous 
 cloud hcyoiid the inarKinal cell, which ix narrow ami roundly truncate at tip, two 
 snhinarxinHl eellH, tlu^ tlrst Ioiik and iwiiited at liaMc, the Keeiiiid eloii^rutc suhtri- 
 an^nlar, itsout»"r nervure sinuate and reeeivinjf hoth recurrent iiervures. the lirst 
 at the Ihw and the second a little hefore the middle; slif^nia pale honey yellow 
 '.iiid lying tlirL'L--f(Mirtlis within the marKinul cell; tt^Knli*' Hinail, palu honey yol- 
 
NtticTii .\mi;kh AN iiymknoitkka. 
 
 2(5') 
 
 low; U'tis honey ycllu'v, clotlicil witli Iniii,' puli* liuirs; itlMloincii iliirk Iiiiik'V 
 yclldvv, t'lonpilc tiviilc, |H-tii>l:iti', tliinly rl«iiln'(l willi t-n-rt, (oilc yi'llnwish liuirs; 
 IK'tiiilf |iyrit'iirin, iniicli niirrowfil at Itasc, nuirsrly |iiiiiftiiriMl, srcitiid st'Kiiiriit 
 niiii-srly and (l('i-|ily |)Uii<'tur<'*l, imliHlicd ; a|H(X Noiix-wfiat iiitirc dt'iiscly cliitlicd. 
 Lt'iiKtli I'-i nun.: t-xpansc of win^H |s nini. 
 
 IIhI). — Ariztiiui. 
 
 This s|K'('ics is ailit'il to /*. n/hijir^ Crcssoii, Init is easily sojMirutt'd 
 liv tlic black iica<l. 
 
 ■Ilnni 
 nifso- 
 indcd, 
 \V.» fns 
 d snl)- 
 .co-lt'i"- 
 ittiicd 
 
 ;l |>alf 
 
 •tnn'tl. 
 
 •ly, UH 
 intoly 
 lutncy 
 ; ti|is 
 llmrax 
 V iruii- 
 'uHcons 
 ip, two 
 .sulilri- 
 lu- first 
 
 yt 
 
 lloW 
 
 •V yu 
 
 SlHIUVlsloN I. 
 
 Wiiijrs witli tlircc siiliinar^inal cells. 
 
 l*li«f»|»NfN ini|M'rinliN ISIakc. 
 
 .U(i/»'. — lli-ad hlack. rounded, tiindy pniicturcd. tliinly dotlicd with sratttTed 
 whitish hairs ; eyes round, polishi-d, proinincnt ; antt'iinii- piccoiis, as lon^ as the 
 head and llionix ; thorax ovate, dark ferniuinous ahove. elosely pnnetnred, dise 
 of luesothoriix with two loiiKitndinal impressed lines, sentellnni hliiekish, finely 
 pnnetured. inetathorax innndly tnineate, eoaiNely retienlate, dorsal groove not 
 extending' to the middle, sides eoars^dy pnnetnred: win^s ample, hasal halt' 
 liyiiline, apical Inilf pale t'n.s<Mius, marginal <-('ll elongate ovate, three siihinarKinal 
 eells, lirst narrow, seeond oldi(inely snhiinadnite, pointed towards ha.se, its hasal 
 and apieal nerviires sinuate, re«'eivinK the first lecnrrent hefore t!ie middle, third 
 narrowed heiieath. so that its apieal nerviire is opposite to and Joins the seeond 
 recnrrent ; lees hlaek. thinly clothed with silvery hail's, ealearia reddish : ah- 
 doineii ovate, |)etiolate, ha.sul segment pyriform. coarsely piiniliired. thinly 
 clothed with erect silvery hairs; second and following sennients hrownish, (Inely 
 punctured, the apical margins clothed with ri'ddish )!<ddeii pnhesceiice : under 
 side same as ahove. Length IK mm. ; ex|>an.se of winf;s 'j:<.,'> mm. 
 
 Halt. — Texas. 
 
 l*lioto|»NiN roiilrHCin Hlake. 
 
 .Ud/c. rniform hrijiht ferniuinous. thinly clothed with erect hairs; head 
 rounded, as wide as thorax: eyes round, prominent ; tia^cdlnm id' antenna' 
 slightly priiinose; upper ed);es and tips of maiidihles hiackish; thorax ovate, 
 rounded posteriorly, minutely |iiiiictnred. inesothoi-a\ with two faintly impressed 
 lines, sciitelliim rounded, inetathorax ahrnptly truncate, reticulate; wiii^s fus- 
 cous, marginal cell short, ovate, tlrst siilnnarKinal Ioiik. iiurniw, mh-oimI siihlrian- 
 Kiilar, its apical nervure sinuate and receiving; the lirst re<Mirrent near the mi<ldle, 
 stigma sMiall. fus<'ous ; teKulic dark honey yellow; le^s thinly clothed with scat- 
 tered hairs; ahdoin<-ii ovate petiidate. short. shiniiiK; apical inarKin of petiole 
 hiackish, margins of renntiniii); sejjinents fringed with ferruKinous piiheso'iice. 
 Length !) mm. 
 
 Hal). — Nevada. 
 
 l*llOtO|»NlN (MtlK'olor Cressol). 
 
 .W(|^■.— Uniform honey yellow, polished, ilolhed with a thin. Ioiik, whitish 
 pnhesctMice ; eyes larKc, round, entire and prominent, as well as the ocelli, which 
 are enclosed hy a hiackish s]>ot ; antenine loiix, honey yellow, the Hu>:elluin 
 
 TR.VNH. AMKU. KNT. SOC. XIII. 
 
 i:M) 
 
 SKI'TKMKKK, 1HH«I. 
 
•J()<) 
 
 (-||.\ltLI> A. HI.AKK. 
 
 iiImivc (liiMky; tliorax nitlu-r tiiMcly |Miii('tiirf<l ; tht' Hiitnre lH-tw«'i-ii the pro und 
 iiicHiitliiiriiX (Iccply iiiiprcNHcil ; sciitrlliiiii KiilMl)'|ircHM-)l, riitioM-, with a tniiiNvcrHi' 
 t'Xi'uviitioii III haHc ; iiKlalhnrav rmiiKlfd, t'liai'scly rrtictilatt'il, willi a tloiihle 
 Hliiiiiii^ >|)a('i' at Iiiim' I'liclosctl l>y well (Ictlni'il rariiuc; tt'tinhf liiti'iiiis; wIiikh 
 ainpli', iilMt'iiri' liyaliiu-; iitrviircs tcKtacniUM, ^tiKllla fiiM'oiin : iiiai'Kiiial rrll t'loii- 
 uatc, i't')<iilar, |i<iiiit<'il at li|i; two HiilniiarKiiial ct'llx, hIuiimiI an in /'. clnni ; liiini 
 Niil)iiiar(!iiial ct-ll nlilitcratcd : U'un liiti'oiis, with liiii^;, whitisli pulicscciin- ; tin* 
 four |iosii-ri<ii' tViiiora ami tiliia-, I'xcrpt cxtrciiK' hitM- ami apivx, iiiuri' or less 
 Markisli: aliiluiiii'i! clniifiatf. prtioiaii'il, oMiiii^r itvatf, sniiintli and HJiiniiiK, 
 <'liillii'd with a loHK. Iliiii. wliitisli piilH'M-cncc, very Hpap<c on tiu' disk oT tin- 
 lar^t' hast! Hr;;nii'iit, Iml rather dms*' on the apiral nnir^ins ol' all the sr^fint-ntH 
 iihovi' and hcncath; th<> tirst or prtiolr Ki'ttnii-nt cloiitiatc, iiit her slender at liase 
 und Hwollen iM'yond the middle, with a snuill prominence on earh Hide alioul the 
 middle. I.enKth !* 11 mm.; ex|ianHf of win^s IT In mm. i('reH.son.i 
 
 IIill). — ('oloflldd. 
 
 AllifM In /' r/iini, hilt nisily (listiii;;iii.»lic<i Wy tlic liyiiliiic wiiij.'.". 
 
 l*llOtO|»NiM III|I»<>4*I|IH CreHSon. 
 
 Miilr. I'niforni dnll honey yellow. shininK. thinly eloihed with a rallier Ioiik 
 whitish pulx-sceiire ; eyes larue, round, entire and very prominent, a.s well as the 
 ocelli ; tips of mandihies hiack : antenna- looKcr than the head and thora.v, Inte- 
 ous yellow; thorax ahove sh'niuK, with ^cattered piitictiires, those on the pleura 
 very dense; inetathoriix ruiiosc; tcnuhe honey yellow; wili^fs hyaline, faintly 
 iridescent, with a rallu'r larjje fuscous cloud just l>eyond the nun'ciiial cell ; ncr- 
 viircH ytdlowish, sti^nni rather larije and hiackisli ; nnirttinal cell short, not longer 
 than the sti;.'ma, hroadly roun<led at tip; three distinct suhmarKinal cells, the 
 sei ond small. siilitriaiiKular and reccivint; the two recurrent nervnres, the third 
 still smaller ami t|uadrate. the apical nervure ahout on u line with the ti|i of the 
 stigma; le^s entirely lliteous yellow, with thin, pale puhescence ; ahdomen ohlon^C 
 ovate, pointed at lip. petiolated, rather closely punctured, shining and with a 
 scattered, Iouk, pale puliescence ; the first, or iM-tiole s<-Kment. half the length of 
 the whole aliilomcn, very slender at hase. with the posterior half K>'catly swollen 
 and ovate; the extreme apex of the alKlomen with a short, acute, recurved spine, 
 and the fourth and lifth ventral sediments have at the extreme apical middle of 
 each two tufts of erect seta-. Length 7 "•■") mm. 
 
 Hill). — ColoriKld. Two H|H'cillU'IIS. 
 
 Kiisilv ri'cojfiii/.i'd Ity tlic tiiMoiin cloud hcyoitd the stijriiui on tln' 
 iinU'rior wiii^s ; tlic siiuill s|H'cinicii has tlic iiciinitioii of the anterior 
 \vin;r>* n'inurkuhly variiihlt!; on the \vi\ w'uv^ the third siil)iiiar;.^iiial 
 cell is very narrow and tran.sversc, while on the ri>rhl winj; it i.x ob- 
 literated and thrown into the second snl)iiiar<;iiial, making that cell 
 nearly as hirjri' as the Hrst ; the niarjriiml cell in hoth winjjs is nar- 
 rower than in the larjj;e s|M'c'inien, and merely inar^'ins the sti<;nia. 
 
 I*liolopNiN niliplH Khike. 
 
 Miilr. Head transversi'. small, hIack, jMilislied ; eycH and iHudli larffe, proini- 
 lUMit ; mandihies honey yellow In-fore the tips; unteiuni- fulvous ; thorax eloii- 
 jfute ovate, iiiirrowed t«> iijm'x, diirk honey yellow, siiiiiiiiK; metiUhoinx tupuriuK 
 
till' 
 
 h ii 
 
 iit'ii 
 
 ■iiif, 
 (• ..f 
 
 the 
 ri(ir 
 iual 
 
 ..1)- 
 
 iiar- 
 ■iii. 
 
 roini- 
 flon- 
 ■riiiK 
 
 NOItTII AMr.KKAN II Y.M KNOITKKA. 
 
 2( 
 
 U 
 
 |M)strri<>rly, Hinootli; flunks. if iii<-s<i|liiinix HWnlltn; winitn us loim HHciitin- insect. 
 Iiyiiliiif, iridisrcnt ; niitrKiniil icll sliort. inriiatf, lyinK almost cnlirrly iHiifiitli 
 th<- stiKiiiu. which is hir){i«, hitio'olatc, Ciiwdus. ttnt Kuhniur«ini»l as larKt' a« tlic 
 second anil tliirrl toKdlHT, second siuuli. trianKiilar, receivinjj the lirst recnirent 
 near the \>unf. third siilM(natlnile. receiving llic second recurrent near the middle: 
 tetfnhe honey yellow : lens pale honey yellow, thinly clothed with yellow puhes- 
 cence; alMlomen elonvale ovale, petiolafe, petiole lonn. thinly ( lotlied with white 
 hairs, second and followinu wiiineiils tus<ons, with I he apical margins dark honey 
 y.llow, clothed with a lew H4-altere<l hairs. I^eiiKth II Hi mm. 
 
 Illll). — ('oloriitlo. Two .xiH'cilUCM."*. 
 
 Allifd to iilniitor HIakc. hut may !«• vixaWy rtcparatiMl hy tlic f'nnii 
 of the iiiftatliorax. 
 
 l*llOlO|>NiM llitl«lH CreSHon. 
 
 Mule. \'\\W chestnut lirown, polished, very sftarsely pnn<'turcd. clothed with 
 H loiiK. Miittercd, |Mtle piilx-Mcenee ; antenme and te^iilie pale testaceous: post- 
 scntelliim with a centnil pit; disk of melathorax with a shallow, loiiKilmlinal 
 depression, slightly striated at hase : win>:s hyaline, faintly tinned with yellow- 
 ish ; nervuri'H and stigma t'liscoiis; marginal cell very short, appendiciilated at 
 tip; second siihmaruinal cell triangular, peliolated; third siihmarKinal cell larKC 
 siili<|iia<lrate : alxlomen very I'eehly punctured : hiusal se);ment petiolate, gradu- 
 ally dilate<l to tip; disk faintly silicate; venter tin);eil with fiiM'ous. Lcii^th 
 11 II mm. 
 
 Halt. — ('ulunidu. Licutfiiant ('. W. \Vlii|»|>lf. 
 Tlii."* is allirti Id /'. n/ranor Hlakr. 
 
 l*hoto|»NiN al<'Miior HIake. 
 
 Mule. Ill-ad lilack. roiiiided. wider than the tlionix. very finely piinctiired. 
 mandililes lilack. tridentat*' at tips; eyes very lartre, prominent ; ocelli also hnye; 
 anteiime t'lilvo-testaceoiis, more than half as loii); us entire insect, the joints 
 curved, presentin;: a slichlly scolloped appearance when viewed laterally : tlionix 
 chestnut lirown, elongate siilii|uailrate, truncate in rront,disc of niesothorax siili- 
 convex, shining!, feehly and remotely punctured, with two lateral, lon|.'itiidinal 
 inipres.seil lines, the lateral lodes linely and closely punctured, niclatliorax triiii- 
 cale, shiniiifx, the dorsal jjroove extendiny: to apex : wint's pale yellowish hyaline. 
 nervnres pale fii.scoiis; stigma lar|.'e. marginal cell short, roundly olilii|iiely trun- 
 cate at lip. three distinct snluiiarKiual cells, the lir-it nearly as lonn as the stigma 
 and niar;.'inal cell comhined. dilated towards the hase, second siilitiiaii^'ular. 
 truncate at tia.se ami lyin^ entirely heiieath the first, receivinj; the first recur- 
 rent Ik'VoiuI tlie middle; le>;s castaneoiis, thinly clot lied with pale hairs, more 
 deii.si- on the tiliiic and tarsi ; ahdiuiii'ii elongate, petiolate. cliestiiut lirown. 
 Hhinin^'. petiole pyriform. minutely punrlured, punctures coarser alioiit the apex. 
 Hccond and following seKliielits feehly piiiictiired and .s|iarscly clolhed with scat- 
 tered pale piihesceiice. Length 1.'! mm. ; expan.se of wiii^s vi;!.."i mm. 
 
 Hal>. — Arizona. 
 
 TImh s|)('ci(>f< rcst'iuhlc."' /*. niKfniirn '. i - • m, lait iiiav lie known l)v 
 till' j^rt'iitcr lt'no;tli of aiitt'iiiiii; and tli'- iu;i ' Ikmiij: entirely l)laek. 
 
IMAGE EVALUATION 
 TEST TARGET (MT-3) 
 
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 33 WEST 
 
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 208 
 
 ("HARLI> A. BLAKK. 
 
 "i--. 
 
 .> . 
 
 V.:\ 
 
 FhotopsiN atrata Blake. 
 
 Male. — Uniform l)la<'k, shiniii>i. thinly clothed with a few scattered, erect hairs ; 
 head transvei-se, as wide as thorax ; antennsp fns<;ous, inandiblesdark ferrusjinous ; 
 eyes large, round, prominent; thorax robust, ovate, narrowed posteriorly, flanks 
 beneath the wings much swollen ; wings hyaline, iridescent ; marginal cell very 
 short, arcuate, rounded at ai)ex. first subniarginal large, second triangular, re- 
 ceiving the first recurrent near the base, third ((uadrate, receiving the second 
 recurrent before the middle : stigma large, black ; tegulai honey yellow; femora 
 black, tibiip and tarsi fuscous, clothed with pale pubescence ; abdomen elongate 
 ovate, petiolate; |)etiole pyriform. with a longitudinal dorsal impression, not 
 extending to ajiical margin, which is constricted, and on ventral surface a longi- 
 tudinal sulcus, widening to apex: apical margins of segments narrowly fusco- 
 ferruginous. Length 7-9 mm. 
 
 Hub. — Nevada. Seven .specimen."*. 
 
 Easily (listino:uislu'(l by the uniform black color and extreme 
 shortness of the margiiuu cell. 
 
 Photo|>«<iiM albipes Cresson. 
 
 Male. — Uniform dark honey yellow, clothed with long, thin, i)ale pubescence, 
 more dense on abdomcTi, sparse ly punctured, metathorax closely and rather 
 coarsely reticulated ; mandibles pale, with black tips and long haii-s ; palpi i>ale ; 
 antenmv yellowish white, scape with long hairs; wings jmle yellowish hyaline; 
 margiiuil cell with a fuscous cloud, rather narrow, about equal in length with 
 the stigma, truncate at tip; second subniarginal cell snbtriangular, the third sub- 
 ijuadrate, slightly narrowed beneath; legs entirely yellowish white, clothed with 
 long whitish pubescence ; abooinen more or les.s tinged with fuscous, ovate, petio- 
 late, the jietiole long, much swollen beyond the middle, strongly and rather 
 closely punctured, the apex strongly constricted. length 11-12 mm. (Cresson.) 
 
 Hal). — Nevada. 
 
 PfiotopjsiN N<»l»riiiiiN n. s)i. 
 
 Male. — Uniformly dark honey yellow, transversely rounded, as wide iis the 
 thorax, shining and minutely punctured ; eyes and ocelli large and prominent, 
 mandibles bidentate at tips; antenna' long, fulvo-testaceous ; thorax elongate 
 ovate, narrowed posteriorly, mesothorax convex, shining, very minutely and dis- 
 tantly punctured and having on the disc two deeply impressed, longitudinal lines 
 ixtending to the scutellum, which is c<»nvex and iK)lished ; metathorax roundly 
 truncate, the dorsal groove reaching to the ai)ex ; wings faintly yellowish hyaline, 
 marginal cell short, ovate and abruptly truncate at tip, three subniarginal cells, 
 the first elongate subciuadrate. as large iis the second and third combined, the 
 second forming a small right angle triangle and receiving the first recurrent 
 nervure close to the base, the third (juadnvte, receiving the second nu'urrent 
 nervure at middle; stigma large, ovate, dark honey yellow; tcgulie moderately 
 large, pale honey yellow, polished ; legs concolorous with the body, very spai-sely 
 clotheil with yellowish hairs; abdomen elongate ovate, petiolate narrowed to 
 apex, polished; i)etiole subpyriforn), having a slight longitudinal dei)ression on 
 the disc, I'Xtreme aju-x fuscous, ventral surface, seco:id and remaining segments 
 more or less stained with testaceous. Length 12 mm. ; expanse of wings 22 mn 
 
 Hab. — Colorado. 
 
 Jk 
 
NORTH AMERICAN HYMKNOPTKRA. 
 
 269 
 
 lis tlu- 
 
 lUMlt, 
 
 id (lis- 
 
 iiies 
 
 miully 
 
 ;iliiu>. 
 
 (■('lis, 
 
 (l, the 
 
 irrent 
 
 rient 
 
 Tiitoly 
 
 nn"sely 
 
 I'd to 
 
 This species is allied to P. alcanor, hut may he distinguished hy 
 *he head heing eonoolorous with the i)()dy, whereas it is l)lack in that 
 species, and hy the paler color of the entire insect. 
 
 Photopsis lepidiis n. sp. 
 
 3ffl/e.— Uniform dark honey vellow ; head transversely rounded, not as wide 
 as the thorax, minutely punctured; eyes and oeelli large and prominent, tips of 
 mandibles black ; antennte fusco-ferruginous, scape very short, minutely punc- 
 tured, joints of the rtajrellum crenulate when viewed laterally; thorax robust, 
 j>rothorax narrow, niesothorax convex, shiniufj, very feebly jninctnred and bear- 
 ing two lateral, longitudinal, inii)ressed lines on the disc; scutellum j»roniincnt. 
 triangular, rounded posteriorly, shining, very feebly punc.ured, metathorax 
 roundly trunrate, .smooth, dorsal groove extending to apex, lateral lobes of me.so- 
 thorax very prominent, closely and finely jiunctured ; wings ample, three sub- 
 marginal cells, the first as large as the second and third combined, second trian- 
 gular, rectiving the first recurrent nervure before the middle, second elongate 
 sulKiuadrate. its outer nervure arcuate, receiving the second recurrent at middle ; 
 marginal cell short, roundly truncate, stigma large, fuscous; all the nt'rvures 
 fusc-ous : tegula^ large, dark honey yellow, ])olished ; legs uniform honey yellow. 
 very feebly i>ubescent ; abdomen elongate, sparsely clothed with pale hairs, ba-sjil 
 segment jiyriform and having on the disc a shallow, longitudinal groov , second 
 and following .segments shining, more or less stained laterally with t jstaceous 
 piJtches, disc of second segment beneath ciistaneous. Length 1(! mm. ; exjianse 
 of wings '2^ nun. 
 
 Hah. — Colorado. 
 
 This species is allied to P. umpla Blake, hut may he separated hy 
 the head heing concolorous with the hody, whereas in the latter it is 
 hlack. 
 
 PhotopsiN tapt^OH Blake. 
 
 Male. — Uniform dark lioney yellow ; thinly clothed with long whitish hairs ; 
 head ^ul>quadrate. as wide as the thorax, very finely punctured, shining, tht- 
 sjKice behind the ocelli deejjly impressed ; eyes large, round and prominent; an- 
 tennte brownish, pale yellow at base ; tijis of the numdibles black ; thorax densely 
 punctured ; niesothorax with four longitudinal, iinpres.sed lines ; metathorax 
 very coarsely reticulateii, roundly truncate; tegiihe small ; wings hyaline, mar- 
 ginal cell elongate, rounded to tip. first submarginal long, narrow, second ob- 
 liquely subquadrate. pointed towards the base and receiving the first recurrent 
 nervure a little before the middle, third nearly obsolete, narrowed beneath, .so 
 that its apical nervun; is opposite to and joins the second recurrent ; stigma 
 nearly bla-'k, the apical half lying within the marginal cell ; a faint fuscous 
 cloud in the discoidal region, nervuns fuscous; legs thinly clothed with pale 
 hairs, coxie and trochanters pale yellow : abdomen elongate ovate, petiole closely 
 punctured, second segment shining, vt-ry fiiuly and remotely i)U net lire.'., ajiical 
 margins of the segments fringed with pale white pulK'scence, ventral segments 
 same as above ; ajH'X armed with two acute, recurved spines. length 11-12 mm. ; 
 expan.si' of wings 19 mm. 
 
 Hah. — Texas. Mr. Belfrage. 
 
 9 
 
270 
 
 CHARLES A. BLAKE. 
 
 '► 1.^ 
 
 Closely allied to P. darn Cresson, but may be distinguishe*! by the 
 greater length of the marginal cell and the absence of the apical 
 fuscous streaks in the wings. 
 
 Photopsis vennstus n. sp. 
 
 Male. — Robust, uniformly dark lioney yellow ; head subquadrate, postci'ior 
 aujfles rounded, finely and irregularly punctured, shininp, thinly clothed with 
 erect, pale yellowish hairs ; mandibles finely punctured, black at tii)s and thinly 
 clothed with pale hairs; eyes large, round and iK)lished; antennie fuscous, scape 
 clothed with fu.scous pubescence; thorax ovate, slightly narrowed posteriorly, 
 j)ro- and mesothorax finelj' punctured, clothed with erect yellowish hairs; meta- 
 thorax roundly truncate, coarsely reticulate, thinly clothed with erect white 
 hairs; scutellum very finely punctulate; wings hyaline, two submargiiial cells, 
 marginal cell elongate ovate, first submarginal cell long and narrow, second elon- 
 gate subquadrate, ])ointed towards base and receiving the first recurrent nervure 
 before the niiddle, stigma small, costal cell wide, tegulie pale honey yellow; legs 
 pale honey yellow, clothed with long pale hairs: abdomen ovate, shining, finely 
 and remotely punctured. si)arsely clothed with moderately long, whitish hairs; 
 basal segment campanulate, Bubsessile with the second, ajjical margins of all the 
 segments fringed with whitish i»ubescence; under side of entire insect finely 
 l)unctured. Length If) mm. ; exi)anse of wings 24 umi. 
 
 Hab. — Arizona. 
 
 Allied to P. (ajxtjos Blake, but may be distinguished by the greater 
 length of the marginal cell, and by being more robust. 
 
 Photopsisjuxta Blake. 
 
 Male. — Uniform dark brown ; thinly clothed with whitish hairs; head rounded, 
 narrowed posteriorly, finely punctured ; eyes large, prominent as well a,s ocelli ; 
 antennie pale honey yellow; mandibles tipi)ed with* black ; thorax robust, elon- 
 gate ovate, shining, finely ]iunctared ; mesothorax with four longituditial ini- 
 jiressed lines, metathorax roundly truncate, 'iroadly reticulate; wings moderate, 
 yellowish hyaline; marginal cell broadly ovate, first submarginal elongate, 
 second subcjuadrate, pointed towards base, its basal nervure sinuate; stigma 
 elongate, its apical three-fourths lying within the marginal cell ; tegulte round, 
 polished, honey yellow, thinly clothed with whitish hairs, calcaria fuscous; ab- 
 doui' M elongate ovate, petiole subpyriform. second segment shining, feebly and 
 remotely i)unctured ; apical nmrginsof all the segments castaneous, thinly fringed 
 with pale yellowish pui)escence. Length 9 mm. ; expanse of wings 18 mm. 
 
 Hal). — Texas. Belfrage. 
 
 PhotopNis aiiluM Rhike. 
 
 Miili: — Uniform dark honey yellow, thinly clothed with erect white hail's; 
 head subquadrate, posterior angles rounded, sliining, very minutely and distantly 
 l)unctured ; eyes large, round, prominent, ocelli moderate; scape of antenna' 
 honey yellow, scutellum fuscous; tips and upper edge of mandibles blackish; 
 thorax elongate subquadrate, rounded in front, pro- and mesothorax finely jumc- 
 tured, the latter with four faintly impres.sed longitudinal lines, metathonix 
 rouiully truncate, broadly and shallowly reticulate; wings moderate yellowish 
 iiyaline. marginal cell large, ovate lanceolate, flret .suhnuirginal cell narrow. 
 
 *,!}' 
 
 il 
 
 %i 
 
 I'm 
 
 if .hi 
 
NOKTH AMKRRAN IIYMKNOFTKKA. 
 
 271 
 
 •al 
 
 second suhcjuadrato. jwinted towards baso, its basjil iierviirc sinuate, tliird suh- 
 o})S()let»'; stitriKii fuscous, its apical two-thirds lyiii); witlin tlie luartfinal cell; 
 tegulu' round, j)olislied, honey yellow; lejrs fuscous, thinly clothed with whitish 
 hairs; abdomen eloi»>jatc ovate, petiole pyriforin, its ventral carina terminating 
 anteriorly in an obtuse tooth, second segment shininp, minutely and distantly 
 punctured ; apical margins of all the segments fringed with white pubescence. 
 Length 11 mm. ; expan.se of wings 18 mm. 
 
 Hal). — Texas. Belfrage. 
 
 Duurs; 
 tantly 
 
 teUHH' 
 
 [kish ; 
 
 ll>unc- 
 
 IhoniX 
 
 J wish 
 
 row. 
 
 DIVISION II. 
 
 Abdomen, with the first abdouiinal segment, more or less sessile 
 with the second, fig. 19 ; wings wi. two suhmarginal cells. 
 
 Fig. 19. 
 
 Photopsis rnstiea RIake. 
 
 Jf(i/e. — Head round, as wide as the thorax, honey yellow, '.lothed with erect 
 fulvous hairs; eyes and ocelli prominent ; antenna? fuscous, as long as the head 
 and thonix, Hagellum pruinose ; thorax black, disc of mesothorax clothed with 
 coaree fulvous pubescence, metathorax roundly truncate, coarsely and broadly 
 reticulate ; wings yellowish hyaline, clouded about the middle and n\)cx ; marginal 
 cell ovate lanceolate, lirst subniarginal narrow, pointed towards the ba.se, second 
 subquadrate, receiving the first recurrent near the base ; legs black, thinly 
 clothed with white hairs, calc^ria fuscous; abdomen elongate ovate, petiolate, 
 narrowed to apex, petiole fuscous, finely punctured, thinly clothed with long 
 white pubescence, apical fringe yellow, second and following segments honey 
 yellow, the apical margins fringed with long yellow pubescence, second .segment 
 beneath fuscous. Length 1<» mm. 
 
 Hab. — California. Henry Edwards. 
 
 "''hotopsis bicolor Blake. 
 
 Male. — Hea<l and thorax dark honey yellow, thinly clothed with ereci, .>i.ii; 
 jmbescenc*? ; head subquadrate, posterior angles rounded, finely punctured ; eye 
 round, large, prorainei.t; antenna; fuscous toward the tijis; tips of mandible 
 fuscous; thorax ovat«, narrowed posteriorly, closely jjunctured, metathorax 
 roundly truncate, broadly reticulate; wings hyaline, fa. \tly tinged with yellow- 
 ish toward apex, marginal cell ovate, first subniarginal narrow, .second subtrian- 
 gular, receiving the first recurrent about the middle ; teguhc round, honey yel- 
 lov. ; legs fuscous, paler about the joints, clothed with fine white pubescence, 
 calcaria long ; abdomen fuscous, ovate, petiolate, petiole subsessile with the second 
 segment, smooth, minutely and remotely punctured, thinly clothed with long, 
 erect, white pubescence. Length 5 mm. 
 
 Hab, — Texas. Two 8i)eciniens. 
 
 -r 
 
''4UALBI 
 
 
 
 272 
 
 CHAKLRS A. BF.AKK. 
 
 Allie<l to P. nokomi-< Bhike, hut may be easily separattd l)y the 
 fiuall size and the triaii<i;uhir second suhinargiual cell. 
 
 FholopHiH aNtjanax Blako. 
 
 M<th. — Fusco-ferniginous; lu-ud (niaclriitf, jiostorior angles roinulod, finely 
 puiietun'il. thinly clothed with ereet yellowish hairs; eyes large, jironiinent, 
 polished ; antenna; fuscous, scape punctured, Hagelluni pruinose ; thorax ovate, 
 narrowed |M»steriorly, closely punctured, niesothorax with two short, iuipri'ssi'd, 
 longitudinal lines, thinly clothed on disc with yellowish ]iul)csceiice, nR>athora.\ 
 roundly inHMtite. brrjadly reticulate, tianks deej)ly excavate; wings yellowish 
 hyaline, marginal cell ovate, lanceolate, roundly truncate at tij), first suhnuirginal 
 small, narntw, second sulMjuadrate, narrowed to a])ex, rccc^iving the first recur- 
 rent hefore the middle ; tegulnj dark honey yellow ; legs fuscous, clothed with 
 yellowish pubfS4ence, calcaria long; ahflomen ovate, Invsal segment campanu- 
 late, sul>s«*ssile with the second, minutely i)uuctured ; apical nuirgins of the seg- 
 ments fringed with white. LiMigth It mm. 
 
 Hah. — Texa.<. Two s|)eeimens. 
 
 I'hotopNiH ineonNpieiiiiM n. sp. 
 
 M<ih. — \'u\Utna honey yellow; head rounded, minutely punctured, thinly 
 clothed with er«-ct, eoanse, yellowish hairs; eyes and ocelli large and prominent, 
 mandiltles stout, tipped with black, clothed with scattered yellowish puhesceiu'e : 
 antenna' fulvo-ferruginous, scape closely puiu-tured and clothed with yellow pu- 
 bescence: thorax ovate, pro- an'' niesothorax coai-sely punctured and moderately 
 densely clothed with coarse fulvous i)ul)e.scence, metathorax roundly truncate, 
 coarsely and rieeply reticulate; lateral lobes of mesotliorax fiue'y punctured; 
 wings faintly yellowish hyaline, two submarginal cells, the first long and nar- 
 row, the s«Tond elongate sulxjuadrate, pointed towards base and receiving the 
 recurrent nervnre before the middle, the marginal cell broadly ovate, rounded to 
 tip; stigma small, honey yellow ; teguhe ])ale honey yellow, shining; legs pale 
 honey ye'.low. thinly clothed with glittering yellow hairs; abdomen elongate 
 ovate, basal .sognunt campanulate, se-ssile with the second, minutely i)unctured 
 and clothe<l with long whitish pubescence, second .segnu'iit shining, very minutely 
 jtunctured and s|»arsely clothed with whitish hairs, tlu' remaining .segments more 
 den.sely clothed : ventral surface somewhat paler than above. Length 14 mm.; 
 expan.se of wings 22 mm. 
 Hah. — California. 
 
 PhotopsiH minata Blake. 
 
 3/rt/f.— Uniform dark honey yellow ; head round, shining, minutely punctured ; 
 eyes large, prominent ; antonnte pale fuscous ; thorax elongate ovate, do.sely 
 jmnctured, metathonix roundly truncate, broadly and feebly reticulate ; wings 
 hyaline, marginal cell ovate, first submarginal large, second small, subtriangular. 
 pointed towards lose, receiving the first recurrent nervure at ba,se ; stigma large, 
 pale fuscous, two-thinls withiu the marginal cell ; tegula* rovmd, pale honey 
 yellow; legs honey yellow, thinly clothed with white hairs; abdomen elongate 
 ovate, jK'tiole pyrifomi. the ventral carina terminating in a sharp tooth ante- 
 riorly, second segment shining, minutely punctured ; apical margins of all the 
 segments thinly fringed with pale pnbes(!ence. Length 4 mm. ; expan.se of 
 wings 7 mm. 
 
 Hah. — Texas*. Belfrage. 
 
 
 lfi'l^«L?; 
 
 II 
 
 
 
NOUTIl AMKKICAN H VM KNOl'TKUA. 
 
 ^/.'i 
 
 Itmed ; 
 •losely 
 
 iguliir. 
 
 larpi', 
 Ihoney 
 (inigate 
 
 ante- 
 ill the 
 In SI' nf 
 
 SuBOrVISlON' 11. 
 
 Winu^s with tliree suhniarginal ci'lls. 
 
 PhotopsiM iiro Blake. 
 
 aWj/e.--ForruKi""iis ; licad vdiind, not as wide as thorax, minutely punctured, 
 thinly clntlied witii erect whiti' hairs; eyes round, lU'oiuinent ; scaite ( f anteuine 
 finely imnctured ; thorax rohust, ovati', dosidy iiunctured, niesothorax with two 
 longitudinal, iuipresse<l lines, sparsely clothed with erect white hairs, nietathorax 
 roundly truncate, coarsely reticulate, excavations of the flanks smooth ; wiiijis 
 yellowish hyaliiu", marjiiital cell ovate lanceolate, aliru]itly truncate at tip; first 
 su))nuirninal suhovate, pointed at hase, second suhtriauKular, rcceivinj; the first 
 recurrent nervurc hcfore the middle; tepnUe honey yellow ; lefts fuscous, clothed 
 with whitish pubescence ; ahdomen short, petiolate, minutely i)unctured, smooth ; 
 a]iical margins of segments thinly frinj;i'd with white piihescence. LeuKth 
 10 mm. 
 
 Hal). — Texas. Two specimens. 
 
 I'liotopNiM caMtniieu (resson. 
 
 3/«?e. — Uniform dark chestnut brown, densel.v and fiiu'ly jHinctured, sliinin<;. 
 clotlu'd with a thin, jjalish pubescence ; head slightly wider than the tiiorax, the 
 eyes very lar>;e a' I ])rominent, entire; ocelli very larjje and prominent, enclosed 
 by a black spot; ce much depressed beneath the antenna; ; upper surface of 
 the mainlibles bn ! and concave, outer surface rather densely clothed with 
 short yellowish puli^ ceiu-e; paljti pale lutoous ; antenna' longer than the head 
 and thoriix, fulvo-testaceous, iin<l when viewed sideways they have a scollojied 
 ajjpearance, the joints l)eneath being contracted at their sutnrt's; thorax broad 
 and truncate in front, prothorax closely imnctared, depressed above and some- 
 what ])rominent on each s'de ; mesothorax subconvex, with large, deej), sparse 
 punctures; on each sidt over the teguhe a deejily impressed longitudiiuil line ; 
 scutellum large, with large, scattered punctures; pleura densely punctured; 
 nietathorax ([uadrate, with scattered punctures, shining, abrupt on the sides and 
 behind, the posterior face com-ave; on the dorsal middle two longitudinal aji- 
 pro.xiuuited carina', confluent behind; teguhe smooth and polished, chestnut 
 brown; wings pale yellowish hyaline; iifvures fuscous, stigma rather large; 
 marginal cell short, oblitinely truncate at tip; three distinct subnnirginal cells, 
 the first long and narrow, nearly as long as the stigma and marginal cell taken 
 together ; the second longitudimilly subtriangular, much narrowed towards the 
 biuse of the wing and continued beneath the first submarginal to near its base, 
 receiving the first recurrent nervure heyotid the middle; third subnnirginal very 
 short, narrow, transversely quadrate, receiving the second recurrent mrvnre at 
 the apex ; legs fulvo-testaceous, clothed with pale .yellowish pubescence, (|uite 
 denne on the tihioi and tarsi ; abdomen elongate, sparsely punctured, shining, 
 the i)unctures becoming finer and less distiiu-t towards the apex, tlie j)ubescence 
 on the basal segments short and thin, longer and thicker on the apical segment ; 
 first scgmejit large and much swolhMi, with a short l)edunch^ the segment nearly 
 as broad a>s tiie second, the apical margin constricted ; last ventral segment with 
 a long, acute, i-ecurved spine. Length 13 ram. ; expanse of wings 22.5 mm. 
 
 Hal). — Lower C'alifornia. Mr. H. Ulke. 
 
 TRAN8. AMEK. ENT. HOC. XIII. 
 
 (35) 
 
 SKPTEMBEB, 1886. 
 
274 
 
 niAKI-KH A. RI.AKFO 
 
 
 » 
 
 :S 
 
 i 
 
 $i 
 
 I 
 
 h 
 
 ». 
 
 I i- 
 
 ■hi 
 
 k IS 
 
 This may l)e (li.stin;|fui^<ho(l by the uniform dark chcstmit brown 
 color, the eh)ngate abdomen and the .siiij^iilar neuration of the wings, 
 
 PhotopHiN Klabrolla Cirsson. 
 
 Male. — Uniform obscure honey yellow, very smooth and polished, clothed with 
 ii thin, jHilc yellowish pubescence: head bla( k, with fine scattered punctures; 
 eyes very large and iirominent, entire and roanded; ocelli also larfje and promi- 
 nent; elypeus and uuindibles obscure honey yellow, the former very transverse 
 and much depressed; the mandibles I'.rge, broad, the upp<!r margin sinuate and 
 aci'-ely carinate, the ajiex with three short, obtuse, blackish teeth; antenme 
 longer than the head and thorax, filiform ; thorax rather broad in front, with 
 thin, subappressed, yellowish sericeous jmhesceiice ; prothorax sunken, not ])romi- 
 nent; mesothorax large, rather broadly margined anteriorly and on each side 
 over the teguhe a finely impressed longitudinal line, the surface polished, with 
 a few scattered delicate punctures ; scutellum smooth, with a few long pale hairs ; 
 jileura rather closely punctured, very jjrominent on the sides and beneath and 
 behind it a very deej), oblique excavation ; metathoi-ax very finely sculjttured, 
 subopacjue, suhquadrate, abrupt on the sides and behind with a long. thin, pale 
 jtubescence ; wings ami)le, hyaline ; nervures fuscous, stigma moderate, blackish ; 
 marginal cell very short, scarcely more than half the length of the stigma the 
 ai)ex appendiculated and subacute, the lower nervure more robust than the 
 upper ; three distinct submarginal cells, the first as long as the stigma, nnich 
 narrowed at tip; the second snuvll, triangular, receiving the first recurrent ner- 
 vure near the base,' which is jjointed ; the third submarginal rather large, quad- 
 rate and receiving the second recurrent nervure about the centre; legs color of 
 the body, thinly ])ubescent, the tibiip and tai-si i)aler ; abdomen elongate ovate, 
 pointed at apex, petiolated, clothed with a lon>r yellowish i)ubescence, more dense 
 towards the apex; first or petiole segment very slender at base and greatly 
 swollen behind the middle and subglobose ; posterior margins of the segments 
 depressed or broadly margined. Length 11 mm. ; expanse of wings 17 mm. 
 
 Hab. — Colorado. 
 
 Closely allied in form and color to P. nubecula, but may be at 
 once distinguished from that species by the smoother surface of the 
 body, the black head, hyaline wings and the shape of the nietathorax. 
 
 Photopsis hyalina Blake. 
 
 Male. — Uniform honey yellow ; head suhquadrate, posterior angles rounded, 
 fine ly punctured ; eyes large, prominent; antennte pale honey yellow; mandi- 
 bles black at tips; thorax elongate ciuadrate, finely punctured, mesothorax with 
 two faintly impressed longitudinal lines ; nietathorax roundly truncate, coarsely 
 reticulate ; tegula? snuiU, pale yellow ; wings hyaline, faintly iridescent, marginal 
 cell ovate, first submarginal small, narrow ; second short, obliquely suhquadrate, 
 receiving the recurrent nervure near the base, stigma prominent; legs pale 
 honey yellow ; abdomen ovate, narrowed to apex, shining, finely punctured, 
 basal segment campanulate, apical margins of segments fringed with silvery pu- 
 bescence; entire insect sprinkled with pale haire. Length 5.5 mm. ; expanse of 
 wings 9 mm. 
 
 Hab, — Texas, Mr. Belfrage. 
 
 
 
NORTH AMKItlCAN H YMKNOI'TKRA. 
 
 'Zt.> 
 
 PhotopfiiH nebnloftna n. s]). 
 
 Male. — Uiiifonn lioiu-y yellow; liead rounded, not iis wide iis the thorax, n»(Ml- 
 erately densely elothed with lonjr, slitterinj; whitish hairs, closely punctured, 
 sliinin<;; eyes large, polished ; tijjs of niandihles hlaek, seai>e of antenna' clothed 
 with sericeous lioney yellow i)uhescence; thorax elongate ovate, pro- and nieso- 
 thorax finely punctured, clothed with glittering, erect honey yellow puhescence, 
 nietathorax roundly truncate, coarsely reticulate, thinly clothed with long, t-rect, 
 white hali-s; lateral declivities deej), jwlished ; wings hyaline, having a fuscous 
 cloud in the third discoidal and first ajtical cells, the nuirginal cell o\ate, roundly 
 pointed at tip, first suhniarginal narrow and jjointed at hase, second short, suh- 
 quadrate, receiving the first recurrent nervure ahout the middle, third nearly 
 obsolete, narrowed beneath and receiving the second recurrent nervure l)ef()re 
 the middle, stigma moderate, its apical two thirds being within the marginal 
 cell; teguUe small, honey yellow; legs: femora fuscous, thinly clothed with 
 glittering white hairs, tibia' and tarsi honey yellow, ci, bed with shorter hairs; 
 abdomen ovate, shining, minutely jmnctured, cloiiied above with erect, jiale 
 yellowish hairs; basal segment campanulatc. subsessile with the second and hav- 
 ing on each side a minute tubercle; apical margins i^f segments fringed with 
 pale yellowish above, shining. Length l.'J nun. ; exi)ansc of wings 24 mm. 
 
 Hah. — Southern Ciilifoniiji. 
 
 Photo|i!«iM abdoiiiiiiallN n. sp. 
 
 Mdh'. — Dark honey yellow ; head sulxjuadrate, ])osterior angles rounded, 
 shining, minutely i)unctured; eyes and ocelli prominent, a rounded tubercle 
 beneath the eyes, mandibles densely and finely punctured, clothed with yellow 
 liubescence; antenna' fulvo-ferrugiuous; thorax ovate, thinly clothed with white 
 pubescence, mesothorax minutely punctured and having two impressed longitu- 
 dinal lines on the disc, nietathorax obli(|uely truncate, covered with broad, 
 shallow reticulations; lateral lobes coarsely and confluently punctured; wings 
 hyaline, faintly iridescent; marginal cell short, i)roadly ovate, truncate at tip, 
 first submarginal elongate, second subquadrate, pointed to base, receiving the 
 first recurrent near the base, third narrowed beneath, its outer nervure nearly 
 obsolete, stigma large, fusctms; nervures of all the wings fuscous; tegular pale 
 honey yellow; legs obscure honey yellow, posterior femoni and tibia' fuscous, 
 clothed with glittering white hairs; abdomen elongate ovate, thinly clothed 
 with erect, glittering white hairs ; basal segment campanulate, subsessile with 
 the second, shining, with a few minute jnmctures; second segment polished, its 
 apical margin fringed with short, silvery pubescence, the remaining segments 
 broadly fuscous, apically, shaded with pale honey yellow basally, ventral surface 
 same as above. Length 10 mm. ; expanse of wings 18 mm. 
 
 Hal). — Colorado. 
 
 Photopsis pallida Blake. 
 
 Male. — Uniform pale honey yellow ; sparsely clothed with yellowish white 
 hairs; head rounded, feebly punctured ; eyes and ocelli round, j)rominent; an- 
 tenna' nearly as long as the head and thora.x ; thorax : pro- and mesothorax 
 finely punctured, shining; metathorax rounded, broadly reticulate, with asmootta, 
 shining space at middle; tegulic small; wings moderate, hyaline, marginal cell 
 rather broadly lanceolate, first submarginal long and narrow, second obliquely 
 subquadrate, jointed towards the hase, its basal nervure slightly .sinuate and 
 
27() 
 
 CHAUI-KS A. lU.AKK. 
 
 
 roceiviuK t hi- first rccUTtnt before the middle; third snl)ohs(deto ; sti>;iiin fus- 
 eoiis, ehmjrsite huiceoliite, its apieiil liiilf lyiiiK within the iiiar>;iMal cell; legs 
 (lark hoiH^v yellow, thinly (dotlied with yellowish hairs; trochanters and eoxit 
 pale yellow ; ahdoinen elongate ovate, shining, finely and remotely |iunctured ; 
 •>asal segment campanulate, second segment somewhat darker ahont the l»ase ; 
 the sutunil eirinie promim-nt; dark fnscons. aj)i'al margin of the segment.s 
 thinly fringed with pale hairs; apex armed with cwo minute recurved spines. 
 Length 7 mm.; expanse of wings II mm. 
 
 Hal). — Te.xa.-!. Mr. lk'lfVii<fc. 
 
 Tlii.s lipefieri is closely allit'd to J*. /////V-oAy/- Civs.soii, l)iit may he 
 (lit^tiiiifiii.sjied by tiie ahseiiee of the thofaeic lines and the distinct 
 fuscous lateral carina) of the second ahdonjinal .seiriuent. 
 
 
 (Jenus .'■>, CIIYPIIOTKS nov. gen. 
 
 Females apterous; mandibles arcutite, with small tooth before the 
 jipex ; maxillary paipi 4-j()inted, the Iid)iiil palpi 2-jointed, short ; 
 eyes roundly ovate, polished ; thortix divided in two part.<, prothorax 
 short and convex, nieso- and metathorax in one, globose ; bji.sal joint 
 «>f anterior tarsus deeply emarginate within ; femora and tibiie more 
 robust than in Phntopm; abdomen jjetiohite, the jietiole slender and 
 cylindrical to ba.<e, suddenly and greatly, dilated at apex, where it is 
 subglobo.se and sessile with the .second segment. 
 
 Figs. 11) and 20 gi' . .i dorsal and lateral view. 
 
 This reniarkablt may possibly prove to be the female of 
 
 Ph<A(>jt><is. 
 
 h. 
 
 <2cCXO> iixC-^:Q22^ 
 
 Fig. 19. 
 
 Fig. -20. 
 
 CliyphoteN olevatiiN n. sp. 
 
 Femiile. — Uniformly ferruginous; head round, closely punctured, thinly clothed 
 with pale, glittering i)ul)e,scence ; mandibles black at tips; antennie fulvo-ferru- 
 ginous; eyes polished ; thorax very convex, densely i)unctured and thinly clothed 
 with pale hairs; legs clothed with glittering yellowish hairs, honey yellow, with 
 the apical half of the intermediate and jmsterior femora fuscous; abdomen elon- 
 gate ovate, closely jiunctured and thinly clothed with erect, i)ale, glittering haire ; 
 the apical margin of second and the following segments stained with ca.staueous; 
 ventral surface of second segment with a narrow, central blackish line uot quite 
 reaching the apical margin. Length (i-8.5 mm. 
 
 Hab. — Arizona, Southern California. Six specimens. 
 
 IS 
 
NOUTII AMKIMCAN IIYM ICNOPTKKA. 
 
 lit 
 
 O.Mius (!, AI>TI-:K4MiiY\A Latr. 
 
 Hciul roundly trans vorfi' ; antcnnit; of male nearly as lonj: as the 
 body; thorax more or less ovate, nictatliorax hidcntate posteriorly; 
 alxloinen pctiolatc, basal scirincnt «,dobost', second transversely siib- 
 j:l(»bose; \viii<is hyaline, one siibniar<riiial cell, entire neural ion eon- 
 fined to the basal area (tij;. 21); thorax of the female divided into 
 two jjurts ; basal sej^nient of abdomen similar to the male, second 
 large and subsessile with the third. Unrepresented. 
 
 Kin. -^1. 
 
 Gfiuis 7. BllAI>Y!¥OH/KNI'N Spin. 
 
 FeuKtlf. — Head <juadrate, mandibles elonjiJite, arcuate, ])alpi fili- 
 form, the maxillary palpi .S-jointed ; the labial palpi 2-jointed, very 
 short; thorax divided in two parts; femora and posterior tibise 
 dilated ; abdomen petiolato, elongate, regularly ovate. Unrepresented . 
 
 hhed 
 imi- 
 Ithed 
 •ith 
 u'lon- 
 tiirs; 
 lous ; 
 mite 
 
 (Jemis H. .nYK.^ONA Latr. 
 
 Head subglobose ; stemniata placed in a triangle on the vertex ; 
 eyes small, round and lateral ; antenna) subfiliform, inserted in the 
 female at each side of the base of the clypeus and api)roximate ; in 
 the male they are wider apart ; the clypeus triangular and longitu- 
 dinally carinate in the female ; in the male transverse and plane ; 
 nuuidibles unidentate and acuminate in the female ; large and tri- 
 dentate in the male; the thorax longitudinally (juadrangular, the 
 anterior angles .'ounded ; the metathorax truncate in the female ; the 
 thorax ovate in the male; the collar transvei"se, curving towards the 
 base of the wings posteriorly, not reaching them ; the anterior wings 
 with one marginal and four submarginal cells, the second submarginal 
 triangular, receiving the fii-st recurrent nervure near its centre; the 
 third ([uadrate, receiving the second recurrent nervure at about one- 
 third of its length, the foiirth extending to the apex of the wing; 
 the legs spinose ; abdomen of the female ovato-eonical, the first seg- 
 ment somewhat narrower than the second ; the abdomen of the male 
 oblong, the margins of the segments crenate, the last concave above 
 and tridentate at its apex, which is truncated. 
 
mm 
 
 
 27M 
 
 CIIAKMCM A. IlLAKK 
 
 f 
 
 M.yriiioMa rnflveiitriM Mlakc. 
 
 Male. — Head larm', black, (luadratc, wider tliaii the thorax, fiiudy laiiictiirod, 
 tliiiily clotlicd with erect ttlack hairs; eyes ovate, proinineiit ; antennu' black, 
 tiap'.lliiiii iiniiiiose; iiiaiidihles stout, thinly clothed with iiale hairs; thorax 
 ovate, narrowed posteriorly, niesothorax witli two doi'sal, longitudinal impres- 
 sions, scntelluin convex, nutathorax roundly truncate, ciost-ly and minutely 
 punctured; wings hyaline, iridt^scent, nuvrgiiuil cell large, lanceolate, first sub- 
 marginal short, second elongate sulxjusiilrate, receiving the first recurrent nervure 
 a little before the middle, third (juadrate, receiving the second recurrent alM»ut 
 the middle; teguhe black; legs black, slender, slightly jiruinose, calcaria jiale ; 
 abdomen (doiigate ovate, petiolate, jHitiole black, renuiiuing segments dark ferru- 
 ginous, paler at sides. Length 'yfy nun. 
 
 Hal). — Nevada. One sj)e('imt>n. 
 
 MyriuoNa niiieolor Say. 
 
 J/«/t'.— Black ; abdomen with ciner(!ous hair; nu'tathorax with an imjiressed 
 line; head with short cinereous hair, somewhat longer about the mouth ; densely 
 punctured; thonix aiul scutel densely ])unctured and with scattered, cinereous, 
 short hair, posterior segments of thi' former with two light, parallel, imju-essed 
 lines; wings hyaline, nervures fuscous; metathorax with a longitudinal, im- 
 jjressed, very distinct line, and a transverse one a<; base ; hairs more obvious each 
 side; ])unctures smaller than those of the thorax ; ab'' men more hairy than any 
 other part of the body. Length three-tenths of an mth (H..") mm.) (Say.) 
 
 Hah.— N. W. Territory. 
 
 This inflect alfo occurred on tiie Missouri at Engineer's cantonment 
 and in Pennsylvania. 
 
 5.t 
 
 ,V 
 
 I 
 
 
 Genus i), 9IETHOCA Latr. 
 
 Ma/c. — Head transverse, flattened in front, convex behind ; eyes 
 ovate, prominent" and lateral; the stemmata large, placed in a tri- 
 angle on the vertex ; antenna; filiform, tapering to a point at the 
 apex ; the scape very sliort ; the joints of the flagelhini beyond the 
 third subarcuate ; thorax oblong, the collar extending to the inser- 
 tion of the wings ; the metathorax obtuse ; the anterior wings with 
 one elongate nuirginiJ cell, which is pointed at its a])ex and extends 
 nearly to the tij) of the wing ; three submarginal cells, tlie first as 
 long as the two following, receiving the first recurrent nervure ; the 
 second quadrangular, receiving the second recurrent nervure ; the 
 third extending to the apex of the wing ; abdomen linear, the seg- 
 ments sabcrenate; the hypopygium produced laterally into two ver- 
 tical i)lates, arcuate at their extremity, beneath produced into a long, 
 recurved, acute spine. 
 
 Female. — Head subglobose ; eyes ovate and lateral ; the stem- 
 mata placed in a triangle on the vertex ; antenna3 filiform, inserted 
 
 .J.. 
 
NOKTII AMKKICAN HYMKNOl'TKKA. '_'<!» 
 
 at the lateral posterior iimrjriiis of the elypeus, rather lon;j:ek than the 
 thorax; the clyiK-us triaiitri'lar ; the maiidihles arcuate; the thorax 
 elonj^'ate, douhly stranjrulate«l, rounded at the hase and ajK'X ; let;-! 
 long and slender, the eoxse very rohust ; femora subclavate ; the 
 tarsi lonjjer than the tihije ; abdomen ovato-conieal, attached to the 
 thorax by a short petiole. 
 
 stem- 
 Inserted 
 
 Methoca birolor Siiy. 
 
 /"Vmrt/p.— |{o<ly i»al(' vfllowish rufous, polished ; liead bliick ; antenim- rufous, 
 ti'iiuinal joints pict-ous; niHntlihle.s and palpi rufous ; thorax : so>;uR'nts suhccjual. 
 anterior and ixisterior onps tonvex, suhovato, internu'diat*- ont- with two slifihtly 
 elevated convexities; alKlonien ovate suhfusiforni ; terguni with a transverse, 
 trianjfular hlaek sjnit at the tip of the second segment, another on tlie third, tlie 
 remaining ones confluent. Ix-ngth mie-fourth of an inch. (7 mm.) 
 
 Hal). — Indiana. 
 
 The abdomen does not contract abruptly to the petioli-, .>iit sub- 
 sides gradually. Van der Linden says that the species of th".- g«'nus 
 are the fenudes of s|)ecies of Tengijra. 
 
 9Iethoea calif'ornira Westw. 
 
 Female. — Entirely ,r -itaneous, smooth and shining; head convex, flanks of 
 thorax glohose; antennae straight, .scsircely equal in length to the head ami 
 thorax, al,' ist filiform, apical joints hlackish ; hase of the collar ovate, truncate; 
 mesonotum narrow, dividwl into two part.s, nearly glohose; abdomen gihhous. 
 second and following segiuent.s clouded at middle with hiac': markings; .sting 
 long and slender, with a small lolie ou each side; legs long, iniarnied. Length 
 
 9 mm. 
 
 Hab. — California. 
 
 Mothooa canadensis Smith. 
 
 JlfftZe.— Black and shining, slightlv villose, the face closely punctured, the ver- 
 tex si)aringly .so; the anterior margin ef the clypeus produced into an elevated 
 tubercle, the tips of the mandibles ferruginous; thorax coarsely i)unctnred, the 
 metiithorax coarsely rugose, having above a central channel, wliich is transversely 
 ridged ; behind, truncate ; the truncation obliquely rugo.se striate on each side, 
 having a slight central channel ; the I'^gs have the apical joints of the tarsi ob- 
 scurely rufo-piceous, the calraria ferruginous; wings hyaline, faintly colored: 
 abdomen : the basal half of the first st'ginent rugose, the lateral margins elevated 
 and acute; beyond this the entire alxlomen is rather finely and di.stantly punc- 
 tured, the hiise of the segments depressed, their margins constricted. Length 
 
 10 mm. 
 
 Hab. — Canada. 
 
 Methoca Poeyi Goer. 
 
 Male. — Black, without spots, with some whitish hairs ; the metathorax is 
 slightly rugose and truncate ; wings hyaline, the nervures black, the two trans- 
 verso-cubital nervures, which from the second submarginal cell, art; not parallel, 
 
 
■^: 
 
 'im 
 
 CIIAHI.KM \. lU.AKl 
 
 in M. Sanritiili : tli)- lilxliiiiiiMi is hiikmiIIi iiiiil Mliiiiiii^. tlu- m-kiik-iiI* siixhily 
 itrnrliil, will' tlif lust ki'KIiiimiI liTiiiiniilrd liy a r<ciirv«-<l s|iiii«-. I^'tiiclh " luni. 
 FrmaU. |{r«l, with I lie iili<liiiii<'ii liliick, willi I he (•xc<-|»ti<iii of th<- fir4 •••iniH-nt. 
 
 ii«*li IM ffillnllv ri>fl t.i**il/tll Ti lillil 
 
 <-<MI 
 
 Frmnlr 
 
 whirli in «i|iinlly ri'<l. hciiKtli •'> Mini 
 IIal». — ( 'iiha 
 
 .^rk horn Ml > Kin Suy. 
 
 Mulr. Ifculy fiitirrly Idiirk, iiiiiiiiiciiliit)', |Miii(-tiir<'(|, iiiiiii<]iltl< ^ iii<-«-«»«i» at tip; 
 iH-»r \\\v lipoisr t<Hii*i<'il : wiii^s hyiilinr, ncrviin'H l)lit<k. tin- M-|iaratiiiE iM-rviin- 
 of III' lirtt aiiit HiTonii niliitiil crlliilcH wanting : sti^'iiia olivioim, ltla<-k : alalonH-n. 
 wjniH-nlK i-<intra«'t»'<l in.,:- lln' incisures, nvidiu-i not i-xtiiKliiiK Iw-yoml lh«- t«T- 
 niinnl |ir<tri-sM-N iiml I'linccaieil Ix'ticsitli tliciii. l/iiii^tli two fifths 'if an inrh. 
 I III mm. I 
 
 IIal».--Itiiliaiill. 
 
 Hi's^'nilihv .S!ff//r/7>/// lijitr., Iiiil is lurjrcr, with :i iiiiirh lar;:«T >li;:iiia 
 an<l rarli alHloiiiiiial segment is iiiiicli iiinrc (•(intract<'<l iH-fon* it.-* !»•■*- 
 torior inrisiin". fSav.) 
 
 % 
 
 % 
 
 L» 
 
 ■t 
 
 'I'lir ti>l|i(\vinir »l<'scii|itioiis an- too iiica;:n' lu i<i<-iilily ; lln-y will 
 apply i<» sfv«Tal of our NortJi Aiiifricaii siM'cii's, .•*<• I jrivr iIm-iii in 
 tli<' ori^riiial : 
 
 Nnlill« T«*rMi<*ol<»r Kali. 
 
 M. iilMlomim- Ixtsi apirrtiu*- iii^nt ini-ilio nit'o : t'liscin allm: |iiin(-(o niicm. 
 Ilaliitat ill Aint>rica. Duin |)niry. 
 
 (apiil iMiiii aiitcnnis nit'iiii). TlKintx nil'uiis, inniiacnlatii*. AiM|i>- 
 iiK-ii l>a.-ii iiiL'nini, in rnnlid nirniii ; I'a.scia aiha ; |)iiiirtii iii;;r<i. A|r-x 
 itiTUin ni^T'T. IV-ilcs liisci, * 
 
 .^nliSIn rvnlniiM I'ali 
 
 M. aim itlMlomiiH- iniiictis (luolius liasi-im striKii iiitiTruplM lin<-<ils<|u<- |«.<»t>ra 
 flavin. 
 
 Ilaltitat ill Anicrica. Doni I)niry. 
 
 Statiira pr:i'cr<l«'iitis ; rapiit aiul tiionix atra, iniiiiaciilata. Piiiir- 
 tiini iilriiM|ii(> Haviiiii a<i l)a.sin aliddniiiiis, stri<;a iin«-rnip(a in 
 iii(*ilin aiitl |K)^ti<'4' liiica <l(ii'salis f<Ti* oiisolciia <■ piiiirto jmrvo in 
 siiipilo fHynu'Hto. 
 
 Manila viiKttUM Faii. 
 
 M. riifa niHloiniiif oliM^tirioru Ht'Kniciit^iriini iiiiirgiiiiiMiN |»iin<iti«|n<- dwihait 
 H«>4-unili !«f|;nii>iiti hIIiIh. 
 
 Habitat in America liorcali. Doiii v. U.-ihr. 
 
 Statiint et niu^iiitiidd M. iii;/ri/M'M. ('upiit riifuin ant<>nniji nijrrb* 
 oiKMMinun !H>^ni<>ntiH tuiinihiiH niar^inc uHhm Hcii(|iin<l<K|ue maiori 
 puncti.x (iuuhu.<« (lorHulilxis alhis. i'cdcs riiH tiliiis olNihurtorihuti. 
 
 « >j. 
 
NOItTII AMIvKICAN HYMKNOITKUA. 
 
 2«1 
 
 INDEX. 
 
 HACK. 
 
 FNAltlMOTIIKK^A I^itr. 
 AJaz Bliiko, TnuiHiu-.tioiiH Aiiioricun KntotnoloKinil H(K;toty iii, 1H7I, ^^(i, %.. IKil 
 
 tilir- 
 !a ill 
 .«» in 
 
 iiijrrw 
 laiuri 
 
 raiITIM<.% I>»tr. 
 
 Olnsloa niiiko, Tnniwu-.tioim Am. Knt. H«k-. iii. 1H71, 2111, 9 MiKi 
 
 Contraota Hiiy, IJ<mt. Jotir. i. 21)'); Hliikc, Truns. Am. Kiit. Hoc. iil, 22!», % .. Wn 
 
 Oopano niiikc, TnuiimctionH Am. Knt. H<k;. iii, 1H71, 2:w, % iJO'i 
 
 OubenslB FMiikc, ihid. ill. lH71,2:n. ? 2(»2 
 
 Dubltata Hmilli, MritiHh MnmMuii (!»t«l«.KiHi iii, («» 9 2<H 
 
 Euterpe Mliiko, TninwMtioiiK Am. Knt. H«m. vii, ih7)>, 2H», 9 !^>1 
 
 Exlmla Itlako, il>i(l. xiii, IHH(I, 2(N>, % n. Hp 2()(> 
 
 Florldana Hliiko, i»nd. iii, 1H71, 245, 9 il»7 
 
 FlorldenslB Hliiku, U.id. vii, 1h7)>, 'i45), -J, !(«» 
 
 QraciliB Hmitli. HritiHli Mnwnm (,'iitaloKno iii, 42, % 202 
 
 Orotel Hiiiko, TnitiHnctionH Am. Knt. H<m\ iii, 1H71I. 22H, % llJ.'i 
 
 Hexaerona Hay, il)i(l. ii"„ 1M71. 22H, 'J, , Uliik«- 11».-) 
 
 Leona lliiiko, Ihiil. i-i, 1 71, 2:M), 9 2iK> 
 
 Nana Hmith, DcHcriiitionH of new IIymonc^|lt^^l in Hrit. Miih. !H7!>, 22((, %.. W^t 
 
 Oajaoa Mlako, TmnHa<-tionH Am. Knt. Hex-, iii, 1H71, 228, ^9 liHi 
 
 Ordlnarla Hmitli, DowriptionK of new Hymrn. in Hrit. MnH. 1H7)», 225, %... 204 
 
 OmatlventrlB CruHwtn, Pr<Mwdinj{H Knt. Hoc. I'lilla. iv, \H(K\, 4:w, 9 1!H! 
 
 PalllcepBCrcHwm, ibid. I v, I Win, 112, 9 20f) 
 
 Parvula lllakc, TranHa(;tionH Am. Knt. H<k-. xii, IHWJ, 20fl, 9 n. Hp 2CKJ 
 
 PecullarlB OcHHon, Ibid. v, 187«. lli», 9 203 
 
 Promethea ItlakH, ihid. iii, 1H71, 221», ^ \m 
 
 Puteola Blako, Ihid. vil, 1H7», 252, 9 2fMI 
 
 Rufa 8t. Farg«iaii, Ilymonoptttni iii, <CJI, % 201 
 
 ButUanB Hlako, TraniwctionH Am. Knt. H«m'. vii. 1H7», 248, ^ 20-1 
 
 SapienB Hmitli, OowiriptionH of mrw Hynu'n. in Hrlt. Mum. 1H7!», 225, % 20'! 
 
 Sayl IJlako, TranhactlonH Am. Knt. H«k-. iil, 1871, 221>, % lf)H 
 
 Sorupea Hay, Ihid. Ill, 1871, 2;«(, %, IWakt' 202 
 
 Senest Gu^-r., Ihid. Ill, 1871, 2:«», t) , Hlakr 1(«» 
 
 Termlnata Hnilt);, DoHcrlptionHnf new Hynnm. in Hrit. Muh. 187t), 225, %.. 205 
 
 Thoraoloa Hlakc '>^ranHactionH Am. Knt. Hoc. xlll, 188<t, 204, 9 n. Hp 204 
 
 Tolteca niako. Ibid. iil, 1871, 24«, 9 107 
 
 TrlBignat» Ulako, Ibid. 111,1871,241, 9 \m 
 
 Tuoatana Blake, ibid. Hi, 1871, 2:n. 9 203 
 
 TRAN8. AMBR. Rt?T. BOO. XIII. 
 
 CW) 
 
 OCTOBKR, 1880. 
 
 '■i^y.ii^i- 
 
282 
 
 CHARLES A. BLAKE. 
 
 PAGE. 
 
 SPH.KROPHTHAI.9IA Blake. 
 
 XI 
 
 ■■«!• 
 
 
 '^fe. 
 
 :t- 
 
 r 
 
 Admetus Biako. Transiutioiis Am. Eut. Soc. iv, 1872, 74, % 229 
 
 .fflgrina Cresson, Proceedings Eiit, Soc. Phila. iv, 1865, 435, 9 221 
 
 Albopilosa Blake, Transjictions Am. Eut. Soc. iv, 1872, 74, 9 241 
 
 Altamira Blake. ibid. iii, 1871, 244, 9 237 
 
 Andreniformis Smith, British Museum Catalogue iii, 55, % 223 
 
 Antigruensis Fabr., Ent. Syst. ii, 3(57, % 224 
 
 Apicalata Blake, Transactions Am. Ent. Soc. iii, 1871, 238, % 230 
 
 Arachnoides Smith, British Museum Catalogue iii, 57, 9 •' 236 
 
 Areneoidea Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 223, 9- 256 
 
 Ariadne Blake, Transiictions Am. Ent. Soc. iii, 1871, 243, 9 235 
 
 Arota Cresson, ibid. v, 1874-76, 120, 9 218 
 
 Asopus Cre-sson, Proceedings Ent. Soc. Phila. iv, 1865, 435, % 225 
 
 Aapasla Blake, Transactitms Am. Ent. Soc. vii, 1879, 250, 9 220 
 
 Aurarla Blake, ibid. vii, 1879, 248, 9 218 
 
 Aureola Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 385, 9 215 
 
 Auripes Blake, Transactions Am. Ent. Soc. iii, 1871, 254, 9 252 
 
 Aurlpilis Blake, ibid. iii, 1871, 233, % 208 
 
 Azteca Blake. ibid. iii. 1871. 240, 'J, 232 
 
 Balopilus Blake, ibid. iii, 1871, 244, 9 237 
 
 Balteola Blake, ibid. iii. 1871, 248, 9 242 
 
 Bellona Cresson, Proceedings Ent. Soc. Phila. iv, 186i>, 434, 9 221 
 
 Bexar Blake, Transactions Am. Ent. Soc. iii, 1871, 238, % 229 
 
 Bioculata (Wesson, Proceedings Ent. Soc. Phila. iv, 1865, 431, % 224 
 
 Blsignata Blake, Transactions Am. Ent. Soc. iii, 18"1, 252, 9 249 
 
 Blandina Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 227, 9 ••• 257 
 
 Brazoria Blake, Transsictions \m. Ent. S«k;. iii, 1871, 255, 9 254 
 
 Callfomica Radosz., Hone Soc. Ent. Rikss, 1861, 86, pi. 2. fig. 7, 9 219 
 
 Canadensis Blake. Transa<"tion8 Am. Ent. Soc. iii, 1871, 252, 9 248 
 
 Canella Blake, ibid. iii, 1871, 239, ^ 2;«) 
 
 Caneo Blake, ibid. vii, 1879, 250. 9 241 
 
 Canina Smith, British Museum Catalogue iii, .58, 9 215 
 
 Capibata Smith, ibid. iii, 59, 9 246 
 
 Castor Blake, Ti-ansmtions Am. Ent. Soc. iii, 1871. 237, % 227 
 
 Chlapa Blake, ibid. iii. 1871, 253, 9 251 
 
 Chiron Blake, ibid. iv, 1872, 72, ^ 220 
 
 CUo Blake, ibid. vii, 1879, 251, 9 214 
 
 Clotho Blake, ibid. iv, 1872, 72, 9 212 
 
 Cocclneohirta Blake, ibid. iii, 1871. 235, % 9 221 
 
 Comanche Blake, ibid. iii, 1871, 234, 'J, 9 211 
 
 Combusta Smith, Bri''sh Museum Catalogue iii, .59, 9 216 
 
 Connectena Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 387, 9 249 
 
 Contumax Cresson, ibid. iv, 1865, 437, 9 250 
 
 Creon Blake, Transactions Am. Ent. Soc. iv, 1872, 73, % 228 
 
 Oreaaonl Blake, ibid. iii, 1871, 68, 9 234 
 
 Oreusa Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 431, 9 223 
 
 Oruoiata Smith, British Museum Catalogue, iii, 42, 9 251 
 
 Cyprle Blake, Transactions Am. Ent. Soc. iii, 1871, 246, 9 239 
 
NORTH AMEHICAN HYMENOPfEKA. 
 
 283 
 
 229 
 221 
 241 
 237 
 223 
 224 
 230 
 236 
 256 
 235 
 218 
 225 
 220 
 218 
 215 
 252 
 208 
 232 
 237 
 242 
 221 
 229 
 224 
 249 
 257 
 254 
 219 
 248 
 230 
 241 
 215 
 246 
 227 
 251 
 220 
 214 
 212 
 221 
 211 
 216 
 249 
 250 
 228 
 234 
 223 
 251 
 239 
 
 pac;k. 
 Derilicta Smith, Descriptions of new Hymen, in Brit. Mus. 1879. 22H. 9 •• 2r>.') 
 
 DucaliB Smith, ibid. 1879,224.9 2.VJ 
 
 Edwardsil Cres.son, Transacticms Am. Ent. Soc. v, 1876. 119. % 2<W 
 
 Electra Blake, ibid. iv. 1872. 75. 9 248 
 
 Erato Blake, ibid. vii, 1879, A">1, 9 213 
 
 Erudlta Cresson, ibid. v, 1876, 120. 9 217 
 
 Fenestrata St. Fargeau, Hymenoptera iii, 267, % 2-Jb 
 
 Ferrugrata Fabr., Syst. Piez. 438; St. Fargeaii, Hymenoptera iii, (>n«, 9... 2:59 
 Ferrugrinea Smith, Descrii)tiona of new Hynun. in Brit. Mus. 1879. 22(i, 9 -• '-49 
 
 Flavida Blake, Transactions Am. Ent. Soc. iii, lOTl, 249, % 214 
 
 Formosa Blake, ibid. iii, 1871, 244, 9 2;J6 
 
 Four-gxittata Siiy, Western Quarterly Reporter ii, 74, 9 -'i'' 
 
 Frigrida Smith, British Museum (ivtsUogue iii, 60, 9 2:i9 
 
 Fulvohirta Ciesson, Proceedinjrs Ent. Soc. Phila. iv. 18<vi, 4'Xi, % 219 
 
 Oabbii Blake, Transactions Am. Ent. Soc. vii, 1879. 248, 9 247 
 
 Gibbosa Say, Boston Journal i, 198, % 231 
 
 Gila Blake, Transactions Am. Ent. Soc. iii, 1871, 250, % 245 
 
 Qorgron Blake, ibid. iii, 1871, 2.3;j, 9 210 
 
 Gothica Klake, ibid. iii, 1871, 2.")2, 9 250 
 
 Qrandlcept Blake, ibid. iv, 1.^72,74. % 9 244 
 
 Hector Blake, ibid. iii, 1871, 237, •& 225 
 
 Hispida Blake, ibid. xiii. 188<), 22(>, % n. sp 226 
 
 Holotricha Sauss., Ann. Soc. Ent. France series 4, vii, 3<)1, 9 -•■* 
 
 Iztapa Blake, Transactions Am. Ent. Soc. iii, 1871, 241. % 'SXi 
 
 Izucar Blake, ibid. iii, 1871,25:$, 9 2.51 
 
 Laticeps Blake, ibid. iii, 1871. 249, ^ 244 
 
 Leda Blake, ibid. iv, 1872, 72, 9 216 
 
 Lerma Blake, ibid. iii, 1871,251, 9 24b 
 
 Luteola Blake, ibid. xiii, 18«6, 23.5, 9 "• sp Zio 
 
 Luxuiiosa Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 224, 9 25.5 
 
 Macerata Blake, Transactions, Am. Ent. So<'. xiii, 1886, 227, % n. sp 227 
 
 MacUenta Blake, ibid. iii. 1H71, 2.39, 1 231 
 
 Macra Cresson, Proceedings Ent. Soc. Phila. iv, 18<>.5, 42J). % 2:J0 
 
 Macrocephala Smith, Des. of new Hymen, in Brit. Mus. 1879, 22.3, 9 25«j 
 
 Magna Cresson, Proceedings Ent. Soc. Phila. iv, 186.5, 385, 9 214 
 
 Marpesia Blake, Transactions Am. Ent. Soc. vii, 1879, 247, 9 218 
 
 Medea Cresson, Proi-eedings Ent. Soc. Phila. iv, 18(J.5, 432 9 224 
 
 Melancholica Smith, Des. of new Hymen, in Brit. Mus. 1879. 223, 9 255 
 
 MelanoBoma Blake, Transactions Am. Ent. Sm-. iii, 1871, 240, 9 '•^^ 
 
 Militaria Smith, British Museum Catalogue iii, 61, 9 222 
 
 Minutlssima Blake, Transactions Am. Ent. Soc. iii, 1871, 254, 9 253 
 
 Mixtura Blake, ibid. vii. 1879. 251, 9 2:M 
 
 MoUlBBima Blake, ibid. xiii. 1886, 21,5, % 9 n. sp... 215 
 
 Monteziunea St. Fargeau. Hymenopteni iii, 634, 9 2JJ2 
 
 Monticola Cresson, Proceedings Ent. So*-. Phila. iv, 186.5, 430. % 226 
 
 Montivaga Ci-esson, ibid. iv, 186.5, 436, 9 2.54 
 
 Munlflca Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 223, 9 ••• 2.56 
 
 Mutata Blake, Transactions Am. Ent. Soc. iii. 1871, 247, 9 241 
 
 Nlffiiceps Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 110, 9 238 
 
Si' 
 
 '^'l 
 
 2«4 
 
 CHARLES A. BLAKE. 
 
 PAGE. 
 
 Norton! Blake, Transactions Am. Ent. Soc. iii, 1871, 68, J 2.34 
 
 Obscura Blakt), ibid. iii, 1871, 239, ^ 2.31 
 
 Occidentalis Linn., Syst. Nat. i, 966 ; St. Fargeau, Hymen, iii, 595, % 9 ... 223 
 
 Oceola Hhike, Transactions Am. Ent. Soc. iii, 1871, 248, % 243 
 
 Ochracea Blake, ibid. vii, 1879, 247, % 9 228 
 
 Orcus Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 428, % 9 209 
 
 Paciflca Cresson, Tran-^ctions Am. Ent. Soc. v, 1874, 120, 9 217 
 
 Parmosa Blake, ibid. xiii, 1886, 210, 9 n. sp 210 
 
 Pennsylvanica St. Farg., ibid. iii, 1871, 233, % ; Hym. iii, 628. 208 
 
 Petricola Blake, ibid. iii. 1871, 253, 9 2.52 
 
 Phsedra Blake, ibid. vii, 1879, 2.51. 9 219 
 
 Preeclara Blake, ibid. xiii, 1886, 252, 9 n. sp 252 
 
 Proserpina Blake, ibid. iii, 1871,241, 9 233 
 
 Psammadroma Blake, ibid. iii, 1871, 254, 9 '-^53 
 
 Pulchra Smith, British Museum Catalogue iii, 62, % 222 
 
 Pygrmea Blake, Transactions Am. Ent. Soc. vii, 1879, 250, 9- '^'^^ 
 
 Quadridei.--. Blake, ibid. vii, 1879, 247, 9 247 
 
 Roblnsonii Blake, ibid. iii, 1871, 2.50, 9 246 
 
 Rubriceps Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 111, 9 216 
 
 Sackenil Cresson, ibid. iv, 1865, 385, 9 ^ , Blake. 213 
 
 Salutatrix Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 227, 9 - 251 
 
 Sanbomii Blake, Transactions Am. Ent. Soc. iii, 1871, 248, % 243 
 
 Scseva Blake, ibid. iii, 1871, 232, -^ 207 
 
 Scaveola Blake, ibid. iii, 1871, 247, 9 241 
 
 Separata Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 227, 9.... 257 
 
 Sicheliana Saus.s., Ann. Soc. Ent. France, series 4, vii, 360, 9 217 
 
 Simillimn Smith, Briti.sh Museum CatJilogue iii, 62, 9 2,54 
 
 Solola illake. Transactions Am. Ent. Soc. iii, 1871, 243, 9 2;.'6 
 
 Sumichrasti Sauss., Ann. Ent. Soc. France, series 4, vii, 357, ^ 9 222 
 
 Tecta Cres.son, Transactions Am. Ent. Soc. v, 1874, 119, 9 216 
 
 Texana Blake, ibid. vii, 1879,250, 9 212 
 
 Thetis Blake, ibid. xiii, 1886,214, 9 n. sp 214 
 
 Tisiphone Blake, ibid. vii, 1879, 240, 9 210 
 
 Toluca Blake, ibid. iii, 1871, 242, 9 235 
 
 Ulkel Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 387, 9 238 
 
 Ursula Cresson, Ti-ansactions Am. Ent. Soc. v, 1874, 120, ^ 218 
 
 Veniflca Blakc, ibid. xiii, 1886, 210, 9 n. sp 210 
 
 Verticalis Smith, British Museum Catalogue iii, 63, 9 221 
 
 Vesta Cresson, Proceedings Ent. Soc. Phila. iv, 1865. 436. 9 240 
 
 VesHta St. Fargeau, Hymenoptera iii, 634, % 9 218 
 
 Vlrguncula Blake, Transactions Am. Ent. Soc. xiii, 1886, 253, 9 n- sp 2.53 
 
 Vulpina Smith, Descriptions of new Hymen, in Brit. Mus. 1879, 225, 9 255 
 
 Waco Blake, Transactions Am. Ent. Soc. iii, 1871, 2:i8, 9 229 
 
 Wilson! Cres.son, Proceedings Ent. Soc. Phila. iv, 186.5, 112, % 232 
 
 Xalapa Blake, Transactions Am. Ent. Soc. iii, 1871, 249, % 245 
 
 Xallsco Blake, ibid. iii, 1871, 245, 9 237 
 
 Zapoteca Blake, ibid. iii, 1871, 250, 'J, 245 
 
 Zelaya Blake, ibid. iii. 1871, 234, '^ 211 
 
 Zenobla Blake, ibid. vii. 1879, 250, 9 220 
 
NORTH AMERICAN HYMENOPTERA. 
 
 285 
 
 PAGE. 
 
 .... 234 
 
 ... 2:ii 
 
 ... 223 
 .... 243 
 ... 228 
 .... 209 
 ... 217 
 ... 210 
 18. 208 
 ... 252 
 ... 219 
 ... 252 
 ... 233 
 ... 253 
 ... 222 
 .... 253 
 .... 247 
 ... 246 
 .... 21') 
 :e. 213 
 ... 251 
 ... 243 
 ... 207 
 ... 241 
 ^... 257 
 217 
 254 
 2;.'6 
 222 
 216 
 212 
 214 
 210 
 235 
 238 
 218 
 210 
 221 
 240 
 218 
 2.53 
 255 
 229 
 232 
 245 
 237 
 245 
 211 
 220 
 
 PAOK. 
 
 PHOTOPNIS Blake. 
 
 .dLbdominalis Blake, Tran-sactions Am. Eiit. Soc. xiii, 1886, 275, % n. sp 275 
 
 Albipes Cresson, ibid. v. 1874, 99, -J, 268 
 
 Alcanor Blake, ibid. iii, 1871,264, % 267 
 
 Ampla Blake, ibid. vii, 1879, 252, ^ 266 
 
 Astyanax Blake, ibid. vii, 1879, 254, % 272 
 
 Atrata Blake. ibid. vii, 1879, 253, % 268 
 
 Attenuata Blake, ibid. iv, 1872, 76, -J, 264 
 
 Aulus Blake, ibid. iv, 1872, 75, 'J, 270 
 
 Belft-agei Blake, ibid. iii, 1871, 263, % 263 
 
 Bicolor Blake, ibid. vii, 1879, 252, ^ 271 
 
 Castanea Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 3.'}8, % 273 
 
 Clara Cresson, ibid. iv, 1865, 439, -J, 262 
 
 Concolor Cresson, ibid. iv, 1865, 439, ^ 265 
 
 Contracta Blake, Transactions Am. Ent. Soc. vii, 1879, 2.5.3, % 2()5 
 
 Danaus Blake, ibid. iii, 1871, 261, % 261 
 
 Ferrugrinea Blake, ibid. vii, 1879, 2.54, % 2(ii 
 
 Qlabrella Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 414, % 274 
 
 Hyalina Blake, Transactions Am. Ent. Soc. iii, 1871, 263, % 274 
 
 Imperialis Blake, ibid. iii. 1871, 2<)0, -^ 265 
 
 Inconsplcuus Blake, ibid. xiii, 1886, 272, % n. sp 272 
 
 Juxta Blake, ibid. iv, 1872, 76, 'J, 270 
 
 Lepidus Blake, ibid. xiii, 1886, 269, % n. sp 269 
 
 Melaniceps Blake, ibid. xiii, 1886, 2(>4, % n. sp 2(>4 
 
 Melicausa Blake, ibid. iii, 1871, 261, -^ 262 
 
 Mellipes Blake, ibid. xiii, 1886, 262, ^ n. sp 262 
 
 Mendica Blake. ibid. iii, 1871, 259, % 259 
 
 Minuta Blake, ibid. iv, 1872, 76, J, 272 
 
 Nebulosus Blake, ibid. xiii, 1886, 275, -J, n. sp 275 
 
 Nitida Cresson, Rep. upon coll. of Hym. in Nev. Utah, Ariz., 1875, p. 710, % .. *67 
 
 Nokomis Blake, Transactions Am. Ent. Soc. iii, 1871, 260, % 260 
 
 Nubecxila Cresson, Proceedings Ent. Soc. Phila. iv, 1865, 440, % 266 
 
 Orizaba Blake, Transactions Am. Ent. Soc. iii, 1871, 259, % 260 
 
 Pallida Blake, ibid. iii, 1871, 263, % 275 
 
 RuBtica Blake, ibid. vii, 1879, 252, -J, 271 
 
 Sobrlnus Blake, ibid. xiii, 1886,268. % n.sp 268 
 
 Tarajos Blake, ibid. iii, 1871, 262, -J, 269 
 
 Trlangrularis Blake, ibid. iii, 1871, 262, % 263 
 
 Unicolor Cresson, Proc-eedings Ent. Soc. Phila. iv, 1865, 389, % 261 
 
 Uro P „ „, Transactions Am. Ent. Soc. vii, 1879, 2.53, % 273 
 
 Venustus Blake, ibid. xiii, 1886, 270, % n.sp 270 
 
 €iIYPHOTE» Blake. 
 Elevatus Blake, Transactions Am. Ent. Soc. xiii, 1886, 276, 9 n. sp 276 
 
 .-*-;■ 
 
■« 
 
 ':k 
 
 J: 
 
 v4 
 
 ■-i< ■ . 
 
 \i 
 
 i 
 
 286 CHAKLKS A. BLAKE. 
 
 PACK. 
 
 9IVRMOMA Latr. 
 
 Ruflventria Blake, Tranaictions Am. Ent. Soc. vii, 1879, 254, % 278 
 
 Unicolor .Say. ibid. iii, 1872, 265, % , Nar. Ex- 
 pedition St. Peter's River, App., 66 278 
 
 iTIETHO<'A Latr. 
 
 Bicolor Say. Boston Journal i, p. 299, 9 280 
 
 CaliforEdca Wtstw.. Proc. of Ent. Soc. of Lond., 1881, p. 133, pi. vii, fig. 1.. 279 
 
 Oanadeiuiis Smith, British Museum Catalogue, Hym. iii, 67, % 279 
 
 Poeyi (iiur.. Icon. Reg. Anim. Ins. p. 430, i J 279 
 
 Stygria Stiy, Boi^tton Journal i, 2{>9, % (Tengyra St. Farg.) 279 
 
 ERRATA. 
 On |)age 2^)1 for dabiatta read «labitRta. 
 By an error of tht- printer lliacer, on page 227, should read niaeerata. 
 
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