IBM ^1 IMAGE EVALUATION TEST TARGET (MT-S) A ^1(>\ itl" 1;N Il ,< X ; IS'I washiv(;t()X. (ioVKUNMKN r I'ltlNTIMi nrilcK. 1 sihi. -v-y. v,"- >."■ '■•*•,' ^ ■ • ^i. . •, - "r- ■■'' ■ -r;; ./',.' '•.-■ ,.-f. -- ,.i-' v^-v;. V ,,,--.' HH ^ Tech. Ser. No. 3, Div. Entom., U. S. Department of Agriculture. Fiohtispiece. 1. Poiilonin vt^.iiiiirDht ii. sp •■i. I'. lil/dliUll Nnl'loll. .'I. /'. ili'siiiiiiliiiiili's Wttlhli. Leaf Galls of Pontania. I. /'. iiiii-niiii Wiii.sli .'i. /'. jij/i'ifnriiiin II, sp. 11 /'. iiiiiiiili- II. .^p. ;. /'. Iii-iiiirfi 11. sp. , I Technical Series No. 3 u. s. uepak'!Mi^:nt n{< agriculture DIVISION OF KN'IOMOLOOY. KE VISION (»K THK NEMATlNiE OF NORTH AMEKICA, A SUBFAMILY OF l.FAF-FEFDlNi; HYMENUl'TFRA OF THF FAMILY TFNTHUFDINID/E. BY C. T.. MAKI.ATT. WASHINGTON : UOVEKNMKNT PUINTINCJ OFFICE. 1890. m • 1(1 I •^ m t^ t '^m*---- tmmm LETTER OF TRANSMITTAL. United States Department of Agricultitke, J^ivisioN OF Entomology, Washington, I). C, Fchrimry 55, i.s.9(;. Sir: 1 have the honor to submit for publication the third number of the technical series of bulletins of this Division. It has been prepared by my first assistant, Mr. (J. L. Marlatt, and consists of a monographic revision of the Nematimc, an imi^ortant subfamily of leaf-feeding hymenopterous insects of the family Tenthredinida'. The larva; of these insects are all plant-feeders and include among their number some very important enemies of cultivated plants. They represent, economically, the most important group of the family to which they belong. Kespectfully, L. (). IIoward, Entomoloitist. Hon. J. Sterlinu Morton, ISecrctary of Agriculture. 3 CONTENTS. Page. The Nkmatint; of North Amekka 7 Introduction 7 (ioographical (li«tril)ution 7 Food-pl.'iiits 7 Life history and habits 7 IJange of species and ccouoniic importance !> Difficulties arising from confusion of species and loss of types !t Sources of material 10 Structure and terminology 10 Classification 17 Table of genera 18 Genns Cladius I!' Trichiocampus 20 Priopliorns 20 Camponis(!Us 20 Anoplonyx 20 Eunra 20 Pontania 20 rteronus 41 Amauronematus 75 Cro'sns H6 Holcocnemo 87 Nematus 87 Pacltynematus 91 MicronematuH 110 Lyga'onematns HI Pristiphora 113 Gymnonyclius 122 Dinenra 125 Homichroa 125 Appendix : Description of spoiies the types of wliich are lost or inaciessilde. . 126 Indiix i.o ■••(Miera and sixicies 133 5 LIST OF ILLUSTRATIONS. Leaf Galls of Poutania i^„„„*- "''''' „ ^ ,- - „ I* rontiHpiece l 3. Thorax of J'achiinematus enchsouii i « 1. Types of claws ,_ 5. Abdoiiiou of I'achynematiis erichsonn jP, (5. Venation of Neinatlnes jp 7. Pontanin jnsum Walsh oo 8. I'teronus rcntmUs Say r'l 1). Pach>/)iematH8 exieiifiiconi in Norton [ i,7 10. Gijmnonychua califonikua u.sp '" l!)3 •ntisjiieco 11 12 13 15 Ifi ir> 33 r.i fl7 11'3 Tlin XEMATIN.i; or XOKTII AMERICA. INTRODTHTION. The siiblamily Xcmathw of Thompson or Nematina of Cameron (Konow's subtribo Nematides) comprises a very liuge gfronp of closely allied species, distributed in the dassilication adopted by the author among nearly a score of genera. They range from very small insects to medium sized, but include no very large species, or in length from 2 to 12 mm. They are for the most i)art smooth, shining, and rather soft bodied, and are variously colored, but yet presenting frecjuently a confusing similarity in general form, and particularly in coloration, rendering their generic and specific references in some cases ditiicult. In point of number of species and iibundance of individuals this sub- family far exceeds any other of the (corresponding groups in the family Tenthredinida', and in variation and peculiarities in larval habits and in economic importance many of the species belonging to it have a very great interest. (ieofiraphical (lisfribution. — The Nematina> sire distinctly northern in their range, reaching their greatest development in abundance of species and specimens in the transition and boreal zones, and extend north- ward into circumpolar regions— species occurring abundantly in Green- land, Iceland, and Spitzbergen. Southward they become let?s and less liumerous, and are practically wanting in tropical countries. This is illustrated very fori;ibly in Europe by the occurrence of over 70 species of the old genus Nimatus in Scotland (Cameron) and 0") in Sweden (Thompson), as against 12 about Naples, Italy (Costa); and the same discrepancy exists between the temperate and subarctic region of America and the Southern States and Mexico. FnodpUdits — Their food-plants cover a wide range, some species affect- ing grasses, cmo or two very destructive ones the grains, others various deciduous trees and shrubs, aiul still others conifers. The majority of the species occur, however, on plants of the families Salicacea', IJetu- la(H.'a', liosacea', and Conifera', in the order given. Life history and hahih. — The Nenuitines are among the tirst sawflies to appear in spring, occurring abundantly on trees at the first appear- ance of the leaves. They do not often frent flowers, except, at least, tlmseof the plants upon which their larva' feed. Many willow species, for example, ocvur abundantly on the earliest spring bloom of the willow. 7 8 In common with other sawflios, liowover, they rarely leave thoir larvjil food plants, and to be (collected snc(;ea8fully a knowledge of their habits in this respect is veiy desirable. In number of brools great diversity is found, and the normal rule of most Tenthrediuidav of a single yearly brood, is frequently deviated from. Some species .are known to be limite entering the soil or other niaterial or remaining in their galls at the completion of growth and continuing in dormant condition until the following spring, when shortly before they emerge as perfect insects the change to the pupal condition takes place. The males normally appear a few days before the females, and the duration of the life of tiic adults of both sexes is short, not often exceeding a week or ten days. ( )f a large percentage of the species no males are known, and in the case of iwany species careful and repeated breeding records indicate that males are very rarely produced. In some species parthenogenesis is complete; that is, the eggs from unimpregnated females produce other females. In other nistances of parthenogenesis, however, either nuxles only are deveIoi)ed from unfer- tilized ova or females very rarely. The union of the sexes takes ])lace very shortly after the appearance of the females and egg deposition (*h>sely follows. The eggs are inserted either singly or a number together in the young twigs, larger veins, petioles, in the surface parenchyma, or in the edges of the leaves, the single exception being the case of the gooseberry sawtly {Ptcronus ribcsii), which merely glues its eggs to the leaf without making any incision whatever. Most of the species are external feeders on the foliage of plants, but the species of two genera, Eino'a ami rontania, so far as their habits have been studied, are gall makers, and pass their early life in the interior of the plants, either in the stems without causing abnormal growths or in the excrescences or galls on the stems and leaves. At least one American specsies develops in the rolled or folded edge of the leaf. The larva' are LiO-footed, sonui solitary, others gregarious — the latter usually more brightly colored and ]H)sses8ing means of protec- tion in glands secreting a noxious iluid. Most of the solitary ones are green and not readily observed. They usually feed from the underside of tlui leaves, eating from the edge or cutting circular holes in the gen- eral surface, and in some case.H taking everything but the stronger veins. Many species rest (juietly during the day, feeding only at night. Sonu^ have the habit of throwing the posterior segments violently upward to frighten away parasitc^s or enemies; others adhere to the leaves or twigs by the thoracic feet only, coiling the posterior segments under the middle ones. eir larval eir liabits al rule of deviated uods only ' Say, the noil, but or other ►wtli and n shortly Jonditif the species formerly included in XemaUis, which in scarcely an instance can be gathered from the original descriptions, has necessitated the examination of all the old types of Norton, Cresson, and others, and these have been redescribod, whenever obtainable. The material in the genus Neinatns in the collection of the American Entomological Society, which includes all of Cresson's and Norton's types, so far us they have been i^reserved, has been very kindly placed at my disposal. I have also had the National collection at hand, and material from a number of private collections, the most imp(utaut of which arc the Nematines from Cornell University, kiiully loaned by Professor Com- stock, and the types of Messrs. Harrington, Dyar, Forbes, Aahmead, and M(!Gillivray. The types of Provancher's two s[)ecies were also very kindly obtaine, oi'cipitnl foramen; ;), eye; 7, cheek; r, mandible; n, oei^ipital fossa; t, maxilla; «, labium; v, antenna (oriKinnI). broadly or narrowly, deeply or shallowly, and also in tlie (!liara(!tor of the lobes produced by this cinargination, whether they are rounded or trianguhir, and their width relative to the widtli of the clypeus. The vertex frequently presents very prominent grooves and ridges, and these, particularly the ridges surrounding the anterior ocellus and inclosing quite n large basin in front of it, are very important. The sides of this basin are either strongly and sharply or broadly and roundly elevated, or in sonu> genera they are subobsolete or wanting, as in I'rint'phorn. The anterior wall of this basin is usuiilly nmch more strongly raised and wider than the latcr.il walls, and fre«piently extends beyonrontI>.p:.rts..r/V,«;,,,„«m«r..,.m.ft«o„a.. ,A)., <^"'^^*"'^ '"'^^ ^''^^^"y VeStiture,| lain-imi; /(.ciypcus; <■, iivpix'iyiHiiii piiitc; rf, (/.antcii- prcseuts fcw structuraJ charac- nal soHcots. ,., anfennal lov.-a (1!) Labium :«, „...,.. ^^,^.^ of ValuC iu SpCCiflC deS(^rip-' Left inan.iii.ir. (K) i^raxiiia: a, car.io; fc, stiixs; c, tiou. It is important, howcver, gai.a; rf, lacinia; .', palpus (origiuni). t„ understand the terminology of the parts to properly appreciate the color descrii)tions. It presents a large luimber of sclerites — often small and somewhat obscure — which seem never to have been very carefully described, and sonic of the more important divisions have been very comnunily misapprehemled. The accompanying illustrafion (fig. 3)sliows more fully than will bo undei taken in the text the superficial anatomical structviro of this division of the body. Wlien softened and subjected to dissection, the thorax readily separates into three jwarts — not, however, on the lines commonly sui)posed to represent the divisions between pro-, meso- and metathorax. The pronotum attadies to the mesothorax and the so- called episternum of the metathorax is seen to be mesoth(»racic. To the dorsal region of the prothorax the i)ronotum, or first division of the tliorax, is generally assigned. This sderite, as jur"- indiciated, is most intimately and inseparably fused with the mesothorax and is s(;arcely at all attached to the lateral and ventral sclerites of the ])ro- thorax, which supimrt the head and to which the anterior legs are joined. On this grouiul, JCirby n^fiised to consider this sptna between the prothorax and niesothorax, the last tluu-acic divisii)!! Ill sawliies being intimately joined with the abdomen, as are the last two divisions in beetles. P.elongiiig to the metathorax are the nietascutum and nietascutellum. This last sclerite— the nietascutellum— is commonly designated in descriptions as the " basal plates," and these have always been mat- ters for dispute among entomologists. Of the European writers, Andre, following Latreille and Audouin, considers them as constituting the dorsal arc of the first abd(miinal segment; Cameron, as representing a fourth thoracic segment (an imiiossibility from our accepted standard of the structure of insects), and VVestwood, on grounds which seem 14 entirely valid, shows that they really represent the terminal sclerite of the nietathorax, namely, the metascutellum. This is plainly apparent from an examination of the genus Ccplim^ where the parts are very plainly diflferentiated and their relationship easily deciphered. There is a suture or fold separating the narrow anterior margin of this sclerite, but the portion so separated is intimately joined to the posterior por- tion and need not be separately designated. This sclerite is strongly incised at the apex centrally and this incision is covered Avith a white membrane, wliicL, in descriptions, is commonly referred to as the white blotch of the so-called basal abdominal segment. The universal occurrence of this white blotch and its slight variation, except in the case of the larger groups of genera, make it ordinarily of little value in descriptions of species. In the comparisons of older descriptions the white spot on the basal segment will be understood to mean this blotch, and in hnrnionizing these with the characterizations of species in the following pages it must also be remembered, in referring by num- ber to the segments of the abdomen, that the so-called first segment belongs to the thorax. The pair of white spots occurring on the upper edge of the meta- scutum, termed i-euchri, also occur uniformly in all Tenthredinidii' and present no important variation in genera, and although they have been referred to in most of the older descriptions, it has not been deemed necessary to mention them in the characterizations of the following pages. These spots, uniformly oval ar.d whitish in color and bearing a hexagonal surface sculpturing, have not been understood so far as (heir function is concerned. 1 am inclined to believe them to be sound organs, and that by the rubbing of the base of the subcostal veins of tiie hind wings over them a vibration of the cenchral plate or of the plate and vein results, which produces sounds audible to the insect ear. The structure of the cenchri has been hitherto erroneously given; they consist uniformly of ])rqiecting plates attached basally, which protect or cover openings into the thorax. In the case of the Lydin.'e, the plate projects or is distinctly raised above the general surface, so that the free edge is plainly noticeable. The idea has therefore been that in the Lydinie the true cenchri are covered by an overhanging plate. In this subfamily, however, these i)late8 are the cenchri, there being no membrane or structure beneath them; and in other subfami- lies the posterior free edge tits down more closely into the oi)ening of the cavity, so that the fact that it has a free posterior and lateral margin may only be discovered by dissecti(m. The lateral and ventral aspect of the thorax includes, for the pro- thorax, an episternum and a central sternal plate; for the mesothorax, an epimeron and an episternum, and other sclerites which are rudi- mentary or unimportant. The meso-epimeron is very large and repre- sents the bulk of the side and venter of the thorax. The divided sclerite immediately back of it, which supi)orts on its upi)er extremity - » i m^»i 'i'dii' has been fully discussed elsewhere and need not be referred to at length here.' The normal venation of the ]Ne- matines is indicated in the ac- companying iigure (lig. 0). Of importance In specific character- i'"*. Q — neuration of nematineh: Lonijitudiuai veins. — a, costal; b, Hubcostal; <•, median; d, anal; e, accessory;/, axillary; ij. inferior; h, radial; i, cubi- tal ; j, siibdiscai. ('ni«.i int.— k, transverse costal; (;i, 11, u, iirst to third transverse ciibitals; p, liasal; (/ and r, first and second recurrents; sand t, Iirst and second transverse medians. Ci'lln. — 1, costal; 2, mib- costal; 3, median; 4, lanceolate; Q, anal; C, radial; 8-11, (irst to fourth ciibitiils; 12-14, first to third discals; 15, 10, Iirst and second posteriors. (In the hind wing cells 8 and l.'l are usually termed the discal cells). (()ri{;inal.) ization are the intercostal cross vein in its relation to the basal vein, and its angle with the costa ; the second recurrent vein, as to whether interstitial with the second transverse cubital or received beyond or within the latter; and in the posterior wings, the relation of the outer veins of the discal cells. The shape of the cells of the anterior wings is of compara- tively little imi)ortance, with the exception of the third cubital, which ' I'roc. Kut. Soc. Wu8h., Ill, pj». 78-82. 17 ispers juid ilissectiou, lit' the ovi- > tliroujili- tlie more st in its er of tlie )d of the irticuhirly the lower iei fie eh ar- tery short, ? are very le seventh ninal ven- icularly in ^esentspe- tlie ternii iter of the ell prqjec the i)roci- thiekened lud in the f iijituiii nal 1 ; d, aiiiil ; (', dial; i, fubi- \^^'T>^^> coNtal ; !>, l>anal; (/ iarticii- larly to the genera developed from the old genua Xematus) is strikingly uniform — so much so that repeatedly in the descriptions reference is made to what is termed normal venation. This venation will be under- stood by a reference to the tigure which is drawn to represent such venation, and, briefly, consists in the intercostal cross nerve being inclined and about its own length anterior to the basal nerve; the sec- ond recurrent being received well within ilic second cubital cell; the third cubital more than half as wide at base as at apex ain^ about twice as long as -..ide at base; the upper discoidal cell of the hind wings exceeding the lower and about twice as long as wide. The stigma varies considerably in different genera, and also within the limits of species. This variation relates to its width compared to its length and the character of its apex, whether suddenly or rather obtusely pointed, or distinctly acuminate, and also in the character of its lower border, whether regularly circularly rounded or nearly straight or more or less angulated. The features of coloration, which have hitherto been used almost exclusively in the differentiation of species, are often constant and fur- nish reliable characters, but can not be implicitly relied upon. For the ready separation of species and for use in synoptic tables, color will always be more valuable than structural characters, especially to the beginner (see p. 23). The surface characters of the species, snch as punctuation and hairy vestiture, are of both specific and generic value, but are less striking and significant in this subfamily than in most of the other divisions or in other families of Hymenoptera. Secondary sexual characters. — Tlie correct association of the iiKiles and females, in the absence of breeding records, is a ditlicult ma^^^er, on account of the striking variation in the sexes in shape, structure of certain parts, and particularly in coloration. The most important sec- ondary sexual charaeters are : Coloi', the male being usually much darker than the other sex; form, the male in general being much more elongate; and shape of antenme, which in the male are commonly very much longer than in the female and frequently compressed basally. CLASSIFICATION. The following characteristics distinguish the Nematina> from allied groups: Auteniip' 9-jointed, usually elongate, slender, tapering, rarely with processes on basal joints, frecjuently more elongate in the males than in the females, and somewhat compressed; anterior wings with simple, seldom-divided radial cell, in which latter case the second i cubital receives both recurrent veins; basal ner\'ure converging with 13449— No. 3 2 18 the llrst reciiiTent nerviire; hind wings iilwtiy.s with two disciil cells and "witli complete lanceohite cell. The followinj; table of gcneiji is based in part on the class! tication given by F. W. Konow,' and it is hoped that it will facilitate the rec«)g- uition of the new genera, most of which are rei)resented among our North American species. The revision of genera with redescriptions of old species is limited to the genera formerly included in the genus Xtmatus. Of the other genera a list of the American species only is given, together Avith a few note;; on synonymy. TAUI.K .'9. I. Chidius UVv^. Joints of anteiniii' without jirojectioiis at tip; third antennal joint curved at the base, in the male with a short, blunt fork beneath, and iu the female with a sharp projection />ii9. . II. Trichwctinij^ts Htg Antenna- Avithout peculiarities fif-P.... III. J'r iujihonis hatr. Second cubital cell receiving both nfcnrreiit veins. Claws bilid ^.-^P. IV. Camponm-UH Newm. Claws simple .pAP. \. Anoplonyx giiix. uov.' Lanceolate cell i>eliolate. Third transverse cubital wanting /»; .^.Q. . VI. Euura Newui. Third transverse cubital present. Claws bifid, clypeus usually emarginate. Tip of the eighth dorsal segment of the male with a snniU, blunt, more or less awl-shai)ed, projection; antenna' of female filiform, snuill species, 2 to f) mm. long, stigma often having clear base, sheath often pointed at tip, gall inhabite^8^.**'^'Il. I'ontauia Cost. Kighth dorsal segment of male broader, obtusely pointed, or not at all produced at tip; antenna' distinctly tapering toward tip; stigma not lighter at base; sheatli not pointed at tip; body more r«)bust. Last ventral segment of male obtusely triangularly produced at tip; sheath of female of the usual form; posterior tibia,' simple. Mesoncttum and pleura' shining; antenna' long aud sleuder, usually lighter colored beneath; head, viewed from the front, almost round; labium but slightly projecting; sheaths usually narrow aud delicate. . VIII. Fierouus Jur. „ fii^ 'Deutsche entomologischo Zeitschrift for 18'JO, pp. 225-255. '^Aiiojilonyx iiM\. nov. (ar, without; oitXoi', weapon; ovvq, claw) is separated from Camponmnis Newm. (of which Lv2>topi(s Ilartig is a synonym) by the very important character of a simple claw Avithout branch or inner tooth. The type of both New- man's and Ilartig's genus is Camponlavua lurkUventris Fall., inAvhich the daws are deeply notched, the rays being subequal. Anoplonyx. Avill include ('amponiscua jwc- toraliH Lej*., C. bicolor liOj)., and C. ovatiiH Zadd. The other tAvo species of this genus, C. anritw Z. & B., and C. cnriiithiacita Z. »V: li., I have not had au opportunity to examine; they may belong Avith C. Uiridicentria or jjossibly come iu the new genus, Ill cells luid iissilicatioii > the rectij"- lunong- our is liuiited y is given, i of the iiijile enuii' of the un at tip of Clti(Uu8 llli}^. temial joint beneath, and icnmpus HtphoruD Latr. .isvu8 Newui. /J' gen. uov.'' uura Newm. small, blunt, lale lilifoiin, ; clear base, intania Cost, ud, or not at toward tip; ; body more produced at terior tibia,- lud slender, ed from the projecting; Heroniis Jur. »arated from y important f both New- e daws are wniacua pec- ' this genus, (ortuuity to aw geuus. 19 Mesonotum and pleura- ojiaque. with very dense and fine punctures; antenna- short, tapering decidedly toward tip; head more or less triangular and with long, jnojecting labium; atigma narrow, tapering posteriorly, lengthened; sln-ath rather thick and stout. IX. .Imainonematun Knw. l^ast ventral segment of nuile excavated at tip, not obtusely triangularly produced; sheatli of ft-male very broad or the posterior tibia- ami tarsi thickened. Posterior tibnc and tarsi very broatl and flattened. X. Croaux Leach. I'osterior tibia- and tarsi not liattenetl. Posterior tibiae and tarsi thickened, tibiae externally witli longitudinal furrow XI. IMcocnime Kmv. I'osterior tibia- and tarsi simple; sheath very thick and stout XII. XvmatuK.Jwr. Claws with short tooth within tij», tooth projecting nearly at right angle. Clypous cmargiuate. Vertex with distinct pentagoruil area. XIII. l'«cii!S XVI. rrintiphoru hatT. Cl.iws simple, without branch or tooth. XVII. U ymnonychna gen. nov.' Anteriiu- wings with divided radial cell. Lancetdate cell petiolatc XVIII. IHHenraD'Ahl. Lanceolate cell contracted XIX. Hemtchroa Steph. I. Genus GLADIUS lUiger. Cladiua 111. Fauna Etrusca, LM ed., p. 27, 1807. Cladius pectinieorniH Foiircroy. Entom. I'aris., ii, p, ;{7l, 1785. CladinH isoinera Norton. Proc. Post. Soc. Nat. Hist., viii, p. 2'J',i, 18(il. The ouly representative of this geiius in this country is the well- known enemy of the cultivated rose, described as new by Norton under the name (\ isomcra. An e.xauiination some years since of Norton's species in comparison with the European ('. pectinicornis indi- cated at once the identity of the two. The common lOuropean enemy of the rose had evidently been early imported with rose plants into New J'higland, and the attention of Harris and Norton was drawn to it at a time when comparisons were out of the . liU, c(, IW);".. vbmnalin Fallmi. Svoiisk. Vot.-Akiul. lluiull., xxix, p. 117, 1M08. Aiihivomcnin lutexcena liintuor. Ith Kojtt. >.'. Y. St.ato I'litoin., pp. !)4-!M), 1888. III. Oenus PRIOPHORUS Dahlbom. l'riophi>ru>t Dalil. (Joiispoct. Ti'iitli. Soand., p. I, 18;!r>. sricciK.s. (I (/«((/i« Norton. TranM. Am. Kiil. Soc, iii, ji. 78, .( , 1872. «()/i^>/i('((;(>(»iN (.Jnwson. 'I'rans. Am. Miil. Hoc;., ii, p. ;Ui7, ,f , I8t;!(. .so/i'/dciN Dyar. ("an. Knt., xxvii,i>. 1!I2, 9. l^. 1\'. Oenus CAMPONISGUS Newman. Cdinponisriis Nowm. I'.nlomoloifist. iv, ji. lilfi, 18(»!(. N<» Animican KjtiicioH. ^ . Oenus ANOPLONYX Gen. Nov. No Amt'i'ican Hpt'cioH. Yl. Genus EUURA Newman.' I'UiHin Nrwni. Kntom. Man., '^■> !'• -•"'"» l^H/. , m-KClKs, nlhiriita CroHHon. Trans. Am. Knt. Soc, viii, p. 1, 9, 1880. «i(uim«. IMO, V. 1H88. (»-fci7((7(,-* Norton. I'roc. Ent. H«>c,. Phil., \, p. lU, 9 , ,( , 18(!l>. MiHvH'oUi Smitli. N. A. Kntoiu., 1, jt. II, 187!t. Hiilirix-iiottiiH WaJHli. I'roo. Ent. Soc. I'liil., \ 1, |>. '?S>'A, i( , 18(!((, nalinH-onini WalHli. I'roc. Knt. Soc. I'hil., vi, )». UTC, 9 , c( , l^l'fl. perlurliauH Walsh. Troc, Knt. Soc. I'hil., vi, p. 251, 9. J, l^<>(i. . f VII. Genus PONTA^IA Costa. I'oHlnniit ('osta. Fauna Napoli, 'I'cntliiu*!., 185!), |). L'O. Itoity t.niall, HUiootii, cly|icus, crnai'f;inatM at li|t, tarsal claw bitid, sti^ina usually li<roclilontia produce*!, narrow, (d)tustdy ]M)int(Ml, moro or less awl slia|i«Hl, hIacU. Fcnniht aut(Miuic suhtiliforin, Hhoath ol'tun ])ointt>d. (iail inhahitcrs. Species throo to live millimeters Umg. ' I have a eonsiderahle amount of nuiti^rial in this f^iMiiis and lio|)o soon tu )i{ivo it a (horoiigh revlHin^. Until this Is done, unbred uuituriul van not oftoit bo sutiHfac- torily jdacrnl, •Th nnd tl / \>\>. !U-!Mi, riiia tiHiially imI, uiU'iow, Hiilililiroi'in, King. 11 to frivo it 1)0 HUtiHlUU- 21 Thia jjemia, as <*hiirju'teri/,«'f various speties of willow. So far as I am aware, all willow-leaf pills are ear cd by tliese inseets. The li in perfect condition, the remainder b( ing minus anteiina- and legs." ' D.'iitHrlii' Kiituin. Z«MlHnhnlt, 1H!M), ji. 2;t7. ^S(.«> 1'ror. KnJ. Sur. I'liilii., \ I, itp. LMH-l-'iil; Am. Kiitom., vol. iLiip. liVrtO. ''I'liiM-iiinlivrHo.iMt ;iti niHtMil' IIuh mill tlio otiior Hi>cci('H to whi'-ii it Iuih liitlirrto lioon iirutl.\oil. I ; ill (^ 22 Tlie larv.iB are rather slender, ranjiing from 6 to 10 mm. in length, few, however, exceeding 7 or 8 mm. They have apparently 18 feet — G thoracic and 12 abdominal — the anal pair of abdondnal feet being rudi- mentary. Up to maturity, the body is yellowish white, the head res- inous or brownisli, tips of mandibles darker, and the eyes, with narrow border, dark brown, almost black. The last Joint of tlie thoracic legs and the claws are resinous. Just before abandoning their galls the larvae undergo the final molt,' assuming a body tint of i dull grayish purple, the head becoming by contrast and in fact of a lighter brown. This obscure coloring is uncpiestionably a most valuable safeguard against discovery by jiredaceous insects or birds during iiie wandering of tlie helpless, delicate larva in search of hibernating quarters. The cocoon is ovate, of silken threads, more or less agglutiiiated, thin, and delicate. Tlie life history of rontania pisum Wjilsh, illustrateowiwm, labeled as hav- ing be^Mi reared from the cecidomyiid gall refi'rred to. The same is true of JN>>Mrf/»,s /» ■ WM 23 . in length, ,ly IS feet— ; being rudi- e head res v^itli narrow lioracic legs ir galls the nil grayish liter brown. ! safeguard wandering rters. The [1, thin, and ed iv figure iriiig wood, ins records been desig- tines or in 11 doubtful, I galls, had species had en as suf- as erected, ich is said ■he normal vas reared lestionably [ from Cor- ed as hav- 'he same is ho gall of I I Poiitania I'cidomyild V of Phila- useuin, tlic 'iIhIi., vol. II, pnmnm and iiiH I'tvronun. \, \\\{\\ very • tlior Hpo«'H fjiiH of r)0(;iiiu^ii ran itii Xemahiit material submitted by Mr. Gillette, and the Cornell University material, I find 20 good species represented, covering localities practically embrac- ing all temperate America. Of these 8 have been reared from or asso- ciated with galls, and two galls are described from which adults have not yet been obtained. Tlie genus is a very diflicult one, and tlio species are, on account of tlieir small size and general similarity, difficult of .separa- tion. They are do ely related to the following genus ( Pteronns), and the males in particula.' are, in some instances, distinguished with difficulty from Ptcronns. With the females the shape of the sheath furnishes an excellent char.icter for the division of the genus into four groups, and structural characters are available for the ready separation of most of the species. The males, however, are separated with greater diffi- culty, and frequently where in the other sex two species are most divergent the males are indistinguish.able except in comparatively trilling colorational details. Dissection of the sexual organs would prob- ably yield good characters, but this is impossible without destroying the specimens, and would not be practicable for the ordinary student. With the males, therefore, separation of the species is based largely on colorational features. In most cases where males have been associated with females, breeding records are the authority for such references. In general, the males agree with the females in possessing the short, sleiuler, tiliform anteinne (iharacteristic of the genus. Two species only, so far as known to me, have very elongate antenna', and the rather robust, Uattened antenna' characteristic of the males of some of the allied genera are very rare in Pontania, In recharacterizing the old species, I have had the specimens them- selv(»s before me and have not used the original descriptions at all. Therefore, find particularly in the case of Walsh's species, which were chai'acterized from fresh or living specimens, some divergences in the matter of coloring will be noted by comjiarison. In general, it may bo said that what in the living or fresh specimens is hyaline or greenish white becomes yellow or even ferruginous with drying and age. It seems to me desirable to use the comparatively permanent color characters presented by the dry specimens rather than the transitory (M)loring of the newly emerged insect. A number of parasites and inquilinons insects of other orders have been reared from the galls, but it is not delinitely ascertijned in every case whether the hosts of the Ibrmer are the gall makers or ^he inquili- nons insects. Mr. Walsh reared a little curculionid, Aufhonomus si/co- phanta Walsh, iVom the galls of j>o«jj<»/, dcsmodioidt's, and Euiira nodus Walsh. A snnill tineid, Untrachciha .s. pomiynelhi Clem., was reared by Walsh li'om the galls of 2)omHm, dcsmodioides, and a cecidomyiid gall, (J. s. rhodohh's. The l>epartnie!jt rearings from galls in(!ludo a dipterous insect, undetermihed, and ^jWo chalcidids, om> a species of tSympicsin and the other Kurntomo niudUmi Say, both i)robably i)ara- sitie on Anthonomm syco}tli, except that pronotum and logs are wliitish and the orbits are broadly yellow exceiit on narrow inner margin 3. vigrita n. sp. Same as last, except that orbits are entirely yellow; antennae yellow beneath and sheath but lightly emarginate 4. palUcornis Nort, Color in general luteous. Claws very minutely cleft at tip. Central lobo of nietauotum Idack; tmter veind of posterior discals not interstitial 5. agiUa Cr. Central lobo pale ; '.uter veins intersf itiiil (5. mcllina Cr. Claws coarsely notched . 7. nevadenaia Cr. II. Color black 8. excavata n. sp. Color in general resinous. Frontal crest wtdl developed. Stigma broad, rcunded on lower margin. Crest bulbous ; jiectus pale 9. resinicola n. sp. Crest narrow ; iioc-tus black . . 10. pecf oralis n. sp. Stigma narrow, acuminate 11. acuminata n. hi>, Fnmtal crest obsolete 12. rohuata n. sp. III. Color in general black. ' • Orbits black; stigma narrow elongate ..P^'.'.'. 13. Aincflirfj n sp. < )rbits broadly ytiUow ; stigma brown .' 11. piaiim Walsh. Orbits posteriorly yellow ; stigma yellow 15. hruHeri n. sp. Color in general resinous. Mes(motum black, excoi>t scutellum; sheath broad, paddle shaped. It), pacifiva n. sp, Mesonotum mostly pale; sheath somewhat blade shaped. 17. pomum Walsh. IV. Clypcus )i(>ariy truncate, or very broadly aiul shallowly onnirginato. rronotum and venter of abdiunen black. Tegulie black. . 18. aira n. sp. Teguhe pale 1». hyalina Nort, rronotum and venter of abdomen ]»ale 20. Iriiniala ii. sp. (My|i»Mis distinctly and more narrowly emarginate. Dorsum of thorax and abdomen black. Orbits black, or rarely slightly reddisii brown. V(!ntcr of abdomen black 21. alrivenlria n. sp. Venter of abdomen pale 22, calif orniea n. sp. Orbits broadly yellow. ^ ..,, Stignui and eosta l)rowM V.; '2'A. gracilia \\. s\f. Stigma and (;o.sta hyaline 21. at'ujmataUa n. sp. An tor I 25 sinicola, and are undoubt- ith I ir Ill IV ith parttf palo. cressonl n sp. emor.1 aro pal(3 . 2. parr a Cr its aro broadly . vigrita n. sp. tennjn yellow ilUtornis Nort. ior tliscals not . - 5. agilia Cr. 6. mcllina Cr. nevadensis Cr. 'xcaratn n. sp. sinicola n. sp. ctoralia n. sp. iminaia n, sp. rohuata ii. sp. kincaidi n sp, |>i«M»i Walsli. hruneri n. sp, taped. Hicifica n. sp, »»»Hw» Walsh. B, 8, aira ii. sp. iynlina Nort. linrnln i\. sp. i'. agilia Cr. Claws coarsely notched 7. neradensis Cr. Antenna' not often exceeding one- half the body in length. Black species. Orbits black, rarely slightly rufous posteriorly. Pronotuin black ; stigma short, robust 22. calif ortiiea n. sp. Pronotum black; stigma elongate, narrow 13. kincaidi n. sp. Pronotum with palo nuirgins. Lateral Avails of ocellar basin rounded or subobsolcte. Third and fourth joints of antenna' of oqiuil length. Hind femora pale 0. resinicola n. sp. Hind femora more or less dark 2. parra Cr. Third joint longest 27. riignlosa n. sp. Lateral walls of ocellar basin sharply detincd 8. excarata u. sp. Orbits yellow; body black dorsally. Venter of abdomen, except centrally, black ; vertex hairless, shining. It. 2>isum Walsh. Venter with vertex clothed with yellowish hairs. 25. dcsmodioidea Walsh. Venter of abdomen altogether pale. Epimcra black. Outer angles of pronotum palo 17. pomum Walsh. Pronotum altogether palo 1. pallicornia Nort. Epimora pale. Rody robust ; stigma pale 12. robiisfa n. sp. Body elongate; stigma brown. Claws very minutely cleft at extreme tip. 28. placenta Nort. Claws coiirsely notched 29. pallifrons Cr. Resinous; vortex, mesonotum, metanotum, and basal abdominal segments cen- trally black 2C. snlph urea n. sp. Tabic of ijalla. Calls springing from lower side of loaf. Conical or pear shaped 30. pyrifortnis n, sp. Globular, attached minutely 11. pisnm Walsh. (Uobiilar, broadly attached. Singly on either side of midrib 17. pom nm Walsh. In rows on or near midrib 31. monilc n. sp. Calls bisecting leaf. Singly, «»r rarely more than two on leaf. Usually remote from petiole; averaging throp-oighths Inch long; on .*ffl/i.r lonrjifolia l!^. hruneri n. sp. Near or joining petiole; averaging ono-half inch long. Approaching shape of acod of Desmodiuni: On SalU calif ornica f 22. caUfornica n. sp. On Salix hmnilisf 25. dcsmodioidea Walsh. OnSalix sp 2. parra Cv. More robust, approuuhiug globular 23. graoxlia n. sp. f 'I k hostel 26 Manj- together on loaf. Paired at base of blade of leaf; extending from iiiiddlo to edge. 9. rcs/n/co/rt n. sp, pTO^' Distributed irregularly along blade on either side of midrib, rarely on edjic JBtlgm of leaf 1!). hijalina Nort. 'IjeyOI tarsi. IXOEX TO SPKCIES OF I'ONTANIA. ncnniinntu n. sp. 9 H agilis Cr. (? 9 5 atra n. sp. 9 18 atriventris n.sp. 9 -1 bruneri n. sp. 9 15 californiea n. sp. (^ 9 - " cressoni n. sp. 9 1 desniodioides Walsh ^ ^ 25 cxcavata n. sp. . 5. Femnle. — Length .'i.5 to \ mm.; not robust; dypeus shallowly and broadly exavated ; lobes short, miinite; mouth parts with very long and ratlier numerous light hairs; lateral furrows of vertex very broad and deep; ocellar basin distinctly defined; frontal crest indistinct, broken by the broad, oval, deeply excavated antennal fovea; antenna' very slender, joints \ and 5 as hmg as or longer than .'i; sheath strongly acuminate at tip, circularly ennirginate beneath, roiunled above; cerci tapering; claws small, deeply and finely notched, rays almost i)arall('l; venation nornuil. Color black, shining; mouth parts, spot beneath ai. .ennu', outer third of pronotum, tegula', apices of coxa', trochanters, aiul legs for the most part yeUowish ; ujtper and lower margins of femora, tips of tibiae, particularly Ga Irathe Jspeci fmidri face, lowei Te Mont by 1 from bylVl galls 3. Pc Fe moui tinct disti equf claM lonp Col( mos . cox pos the ( ei'i isl cr( 27 Igo. trfiinicola n. sji. >, r.'irely on edjic I!'. hjiaUna Norr. posterior pair, and tips of tarsi, iiicludiiis' all of posterior pair, reddish )rown; all of legs somewhat iiifuscated; veins brown; basal half of stigma and extreme bas(> of costa pale; in some specimens the legs jeyond the trochanters are altogether light, ex(;ept posterior tibiae and tarsi. "' ,1 Male. — Length 3.r> mm.; agrees with the female ingeneral structureand ' Mcolorational characters; lateral walls of ocellar basin more tlattened ", ,^and rounded; the stigma uniforndy brownish; the antenna', distinctly 10 |fnlvous beneath. H I 2,s I OalL — Length 8 nun.; breadth mm. Of type of f(('.wio>' 'olden, but 17 irather smaller and ])rojecting most on lower surface of leaf. In the ^^" J8])ecimen examined, two occur on tlie leaf, one on either side of the "I midrib, and each extends from the latter to the margin of the leaf. fSur- .~ face, especifilly lower, tnberculato and rosy. ILxit hole of adult on o| lower side, just at surface of leaf and at end next to petiole. 2(; 20 l<^'i females. — Nevada 4, California .'5, Oregon li, and Arizona find Montana 1 each. (Coll. Am. Ent. Soc.) Also one specimen collected by T. Kincaid at Olympia, Wash. (Coll. Cornell Univ.) One male " from CalilVu'uia. (Coll. Am. Ent. Soc.) Galls on willow leaf collected ,,.' ^ * ' by Mr. Ehrhorn, Mountain View, Cal. Two aosterior tarsi and tips (tf con-i dusky; bases of all wing vtMiis reac^hing the body and extreme base of stigma light; balance of veins brown. One I'emale. Michigan. (Coll. U. S. Nat. Mus.) 1. Pontania pallicornis Norton. IStil. Nematus paUicornin'Sovton, IJoston Proc, viii, ]>. 1(10. 18(57. XvmalHn j)alliromin Norton. TraiiH. Am. Knt. Soc. i, p. 203 (Cat., etc., p. fi."). Female. — Length rnnni.; somewhat robust; clypeus circular and mod- erately broadly notched, lobes small ; moutii i)a.rts with scattering wliit- ish hairs; vertex roughened; ocellar basin distinctly defined; frontal crest strongly developed, very slightly broken by the antennal fovea, * ;; 28 which is oval and not deeply excavated; antennae short, scarcely tapering; sheath rather broad, acuminate, but not very shari)ly pointed, hairs rather long and abundant; cerci pointed; claws very large, deeply cleft; venation about normal; intercostal vein nearly at right angles with costa, and outer veins of discal cells of hind wings interstitial, or nearly so. Color black, shiniTig; face below antenna', orbits, moutli parts, angles of pronotum, teguhr, and legs, except extreme bases of coxa', yellowish ferruginous; antenme ferruginous beneath, especially toward apex; veins light brown; base of stigma and base of costa pale; abdomen inclined to rufous beneath. Male. — Length 4.5 mm.; antennae much longer and antennal fovea somewhat narrower than in fenmle; tip of abdomen strongly recurved; color as in female, except that bases of posterior <'Oxa> only are black, and the abdomen ventrally with more or less of the apex of the last dorsal segment is yellowish ferruginous. The antenna' also are almost altogether yellowish, except scape and basal joints of the llagclluiii above. Five females and five males. Illinois, Texas, ami New ITanipshire. (Colls. Am. Knt. Soc. and U. S. Nat. Mus.) V ' |;ri I i 5. Pontania agilis C?'csson. 1880. Xcmatitu ayUia Crcsson. Trans. Am. Eiit. Soc, viii, p. 9. Fcrntdc. — Length;") mm.; very robust; clypeus broadly and shallowly excavated; lobes minute, rounded; vertex elevated, but with ocellar basin not very distinctly limited ; ridges rounded; frontal crest not dis- tinctly raised ; antennal fovea circular, shallow; claws very minutely and microscopically cleft at extreme apex; sheath strongly acuminate, broad basally; cerci tapering; venation normal. Color yellowish ferru ginous, resinous, shining; antenna', spot including ocelli, small circu lar spot on occiput, stripe on eacli of the lobes of mesothorax, base of scutellum, metathorax, more or lessof first segment of abdomen, black; V(uns yellowish brown ; stigma and costa yellow, the former edged with brown at tip. Male. — Length 4 to 4.5 mm.; very slender, graceful; head and mouth parts about as in female; antennii- very long, slender, longer than entire body; claws cleft as in female. Color: Large spot on vertex, extending considerably beyond ocelli and backward over occiput, mesothorax, metathorax, abdomen, dorsally except sides of the terminal segments, scape and llagollum above, black; balance of insect, including venter, legs, lower surface of antennae, except extreme tip, yellowish ferrugi- nous; veins brown; stigma yellow, edged with brown. One female ami live males. Nevada and Washington. (Coll. Am. Ent. Soc.) 29 I'ort, scarcely S. Pontania mellina Cressoii. larply pointed, I 1«80. Xematun wellinus CrcMsoii. Trans. Am. Ent. Soc, viii, p. 10. f '• ^^' *^1''^^' I Female. — Length 5.5 mm.; very robust, sliiuinjj;; clypeus distinctly ^ig It jiugles Jml^ rather broadly emar{;inate; lobes short, broad, rounded; ocellar erstitial, ()i li^jjsjii, deeply excavated; sides and frontal crest stronj^ly raised, but 1 8, moiilli Ijiither thick and i "unded, the former somewhat broken; anteunal fovea emo '>'ises of |j|(.(3p^ ^^^^ sharply defined; antenna' scarcely longer than head and 1, es])eciall\ Ithorax, slender, Joints 3 and 4 subequal; venation in general norn)al; o costa pale; ^intercostal very near basal ; the outer veins of discal cells of hind wings |interstitial; stigma not very broad, tapering from oval base circularly ennal fovea |to apex; sheath sharply acuminate, fringed with rather long hairs; 8 y'f'curved; |(.eTci long, scarcely ta])ering; claws very minutely notched at extreme fapex. Color yellowish, tinged with ferruginous, a little darker around I vertex, mesonot'um, and mesepimera; antenna', small spot about ocelli, ! sometimes limited to ring about each ocellus, minute spot on occiput, spot on lateral lobes of mesonotum, on either side of mesoscutellum, apex of latter, and most of metanotum excei)t basal ])lates black; dorsal margin and tip of sheath brownish; veins yellowish brown; stigma and costa vellow, nnicolorous. 'ly .'uo blaciv, -v of tlie last wish ferru 5inaII circu ■ ax, base ol" Hen, black ; edged with and mouth than entire extending esothorax, segments, "g venter, 5h ferrugi- Coll. Am. Two females. Nevada. (Coll. Am. Ent. Soc.) This species, though somewhat larger, is very closely allied to ayiiis Cresson. 7. Pontania nevadensis Cresson. 1880. Nemutua nevadenaiH Cresson. Trans. Am. Ent. Soc, viii, p. 9. Female. — Length 4.5 to 5mm.; very robust, shining; vertex slightly rongliened; clypeus broadly, shallowly excavated; hairs of clypeus and labrum almost wanting; sides of ocellar basin very sharply raised; frontal crest large, distinct, unbroken; antennal fovea circular, rather deeply excavated; antenuic short, not as long as head and thorax, joint 3 very slightly longer than 4 and 5; sheath broad basally, strongly acuminate; cerci moderate, tapering; claws very large, deeply cleft. Color sulphur yellow; antennje, quadrate spot on vertex, extending back over occiput with lines running to base of antenna', n)esonotum, metanotum, and stripe on basal segments of the abdomen becoming obsolete after the fourth or fifth segment black; spot beneath base of wings and upper margin and apex of sheath brownish black; antenuie inclined to fulvous beneath toward tips; veins yellowish brown; stigma lighter, except lower apical margin; costa lighter at base. Male. — Length 4.5 mm.; very slender, graceful ; antennae nearly as long as entire body, joints 3 to 5 subequal, fourth a little longer tlian third; procidentia in-qjecting about half its lengtli; legs long; claws not very large, but deeply cleft. Color resinous yellow, inclined to ferruginous on the thorax beneath ; anteuuic above at base and scape, ■ ii i 1 1 1 > ', ' ?■ I t 1 illj ' '' 30 Ijirge spot on vertex extendiiif;' over occiput, mesonotum, nietsinotuin. brojul stripe on each tlart resinous; upi)er and lower edges of femora, tips of posterior tibia', and tips of tarsi, extending on the posterior i)air to the tip of the basal Joint, brownish; autennai somewhat lighter beneath, especially toward tip; veins ycl h>wish brown; stignui at base and costa at base and apex hyaline. Male. — Agrees in general with the female; ocellar basin even more sharply detined and the frontal crest unbroken; venation normal. Color as in female, exce[)t that the legs are lighter and the ctmtral por- tion of the abdomen beneath is inclined to yellowish; autenme distinctly fulvous beneath; joints long, nodose at tips. Four females and one male. (California, Colorado (C. V. Gillette), and Veta Pass, Colo. (Colls. U. !S. Nat. Mus. and Am. Ent. Soc.) 9. Pontania resinicola new species. Female. — Length 5.5 mui.; rather robust; clypeus deeply, angularly emarginate; lobes triangular, rounded at tips; mouth parts with very few and inconspicuous hairs, shining; frontal crest very broadly and bulbously elevated, semicircular, shallowly notched at center; ocellar basin not distinctly limited laterally, or lateral walls wanting; antennal fovea elongate; antenna' short, liliform, third joint longest; claws deeidy bitid, rays nearly parallel; sheath moderately broad, very slightly sinuate on lower margin, tapering regularly to apex, armeil begn pain may thci lobu occu or m X»oui yellc indit gall gxni Ivoe yieh vol. T (Co 31 in, Jiietaiiotniii t extending f(j bUomeu; vein.s Montaiui, and .Mils.) h liis types of f of the claws, \y referred lo 1"; clypeusiiai. ith parts Avitli "t Jliiied; frontal ntennal fovea to 5 subequiil. ivex on nppoi t not sbar])ly ys ecpial and itb basal, very lid transverse >f pronotuni, art resinous; I tii)s of tarsi, lit, brownish; p; veins ye! hyaline, in even umie ition normal. 3 eential por- me distinctly jillette), and )c.) y, angularly ts with very Jroadly and iter; ocellai S', anteimal t^cstj claws noad, very pex, armed ith rather long, curved hairs; cerci long, slightly tapering; ii])[»er iscal cell of hind wings usually much shorter than lower and ternn- ating withiu apex of latter. Color resinous yeUow; (piadrate spot on eitex, broad stripe on dorsuui of thorax extendi' g to scutellum, iietanotum and more or less of basal segments of abdomen centrally lecreasiug posteriorly, and upper margin of sheath browuisli-black; cape and upper half of antenna', tips of mandibles, and balance of sheath fuscous; veins brown, costa an«l stigma centrally yellow. Male. — Length 4 una.; rather slender, tapering distinctly from head and thorax to tip of abdttmen; structurally, as in the female, with the ateral walls of the ocelhir basin perhaps even less apparent — i)racti- cally obsolete. Cohu" black, shining, including orbits; mouth parts, angles of pronotum, teguhe, and legs brownish yellow; tips of posterior tibia' an, 188."). The galls occur in clusters of two to eight on the basal portion of the leaf, beguming usually at the very apex of the i)etiole. They are commonly ]>aired — if but two, one on either side, or two or lour on aside, as the case may be — occasionally occurring singly. In general size and appearance the individual galls resemble those of dixmod hides, but are rather more robust or globular, piojeci ing equally on both sides of the leaf and occui)ying the leaf entirely from the midrib to the edge. AVhere two or more occur together, they are merged into each other, forming a com- pound gall. In color they are red or pink on the upper side and light yellowish green on the lower. The larva is large and rather robust, indicating a fairly good-sized insect. 1 have doubtfully referred the gallt(> Voutniiia resinicol((, the largest Californiau representative of the gxnus, although the galls from whi(;h the adults were reared by Mv. Koebele were not saved by him and the ones sent to Washington yielded oidy an ichneumonid parasite {Ikissus euurtv Ashm., Ins. Life, vol. Ill, p. 4(>0) and a tortricid. Twi> females and seven males. Albert Koebele, Los Angeles, Cal. (Coll. U. S. Nat. Mus.) 10. Fontania pectoralis new species. Female. — Length 5 mm.; rather robust; clypeus very broadly and shallowly emarginate; frontal crest and sides of ocellar basin sharply and distinctly detinetl, former unbroken; antennal fovea broatl oval; fourth joint of antenna' a little longer than third; claws deeply notched, rays nearly ecpial; sheath of ovipositor stout and broad basally, slightly emarginate on lower apical edge, tip obtusely rounded; cerci short, tapering; third cubital three times as long as wide at base; outer veins of discal cells of posterior wings nearly interstitial; stigma very broad basally, regularly tapering to pointed ajiex. Color f 32 In i i. I 5 -s i I 11 !'i I n 1 ! I .41 ■ I I! ill {fcncral resinous; busc of anteniiii', space about ocelli, stripe on each lobe of niesonotnin, apex ot scutelluni, inotanotuni, dorsal segments ol abdomen, except last, extending over sides to ventral arc, large spot on pectus, and slieatli, especially dorsally, brownish black ; . Pontania kincaidi new species. Fnuale. — Length . Xematits pisum ]Marlatt. I'roc. Eut. Soc. Wash., iii, p. 261. 1895. Xematus quercicohi (Walsh) Marlatt. Proc. Ent. Soc. Wash., iii, p. 266. Female. — Loiiotli 4 imn.; slender, head wider than thorax; abdomen spindle shaped; clypeus rather deeply and angularly notched, lobe> triangular; ocellar basin distinctly limited, lateral ridges not very sharply raised; frontal crest prominent, slightly notched at center; antennal fovea shallow, eh)ngate; antennic short, nioderately robust, joints 3 to 5 subequal ; sheath broad, very slightly emarginate beneath, rounded above, apex rounded; cerci rather long, tapering; claws deeply notched, rays subequal; third cubital cell quadrate; upper discal cell not exceeding lower. Color: Antenna', spot on vertex extending more or less over occiput, thorax, most of abdomen, includ- ing sheath, black ; orbits and face below and including frontal crest, most of pronotum, teguhe, legs except o vtreme base of posterior coxa , more oi less of central portion of venter of abdomen, including all terminal segments and the terminal dorsal segment with cerci, yellow- ish ferruginous; tips of posterior tibia' and tarsi infuscated; antennn' very slightly paler beneath and toAvard tips; veins and stigma brown; costa lighter at base. ^[((h'. — Length 3.") mm. ; very slender and graceful; tuitennai longer than in I'einale and more robust; joints 3 to 5 subeiiual. Color }»lack; face below froiual crest, orbits, angles of i)ronotum, teguhe, legs except bases of posterior coxa', central portion of abdomen beneath, and hypo pygium yeHow; veins as in female; antenna' fulvous beneath and also entirely at apex. "(laU. — The gall uiado hy it is found on SaUx discolor. A anhsphcrioal, poa-liko, hollow, palo yellowiHh-yrcon gall, always growing on tho undursido of the leaf and alniotit a' ways I'ntm one of the sido veins (in one caso from the midrib), aud attached to till' loaf l)y only a niinnto ]iortion of its Bnrfai'c; 0.18 to 0.28 inch iu diameter, and a lew,innnatnn', only 0.08 inch in diameter. Almost invariably there is but one gall to tlio leaf, but on four leaves tlu'ro were two, and occasionally two are coulhient. Surface iu some smooth aud even, without pubeseonce; in others a little Rhriveh'ii, generally studded in Ihe nicdinm-Hi/ed ones with four to twelve small, robustly eou ieal nip]d(>s, wliitli in the larger ones have burst into a scabnms biowu sear. OuI,\ iu three out of inxty-two was there any rosy check, as in «, jwrnhm. The point ol aliachnient is unirkod (»n the upper side of the leaf by n brown Bii'>hemisphericai depression. "f.anut. — August -'5. Ai)parently 18-footed, no anal prologs being visib.e. When at rest, it elevated its entire abdomen behind the true legs in the air. Tjongth 0.17 toO,2;{ iucli; color whitish hyaline; head slightly dusky ; month ilusky; oyo-Bpots circular and black ; anal s(>gment e(inal iu length to twoof the others ami ai)i>arpntly divided iu two by a traiisvcrse uu'dial suture. The larva goes under ground to trans form, for out of lifty galls all but three were btu'ed, and in those, when opened, larva' which iuul perished Avhon immature were found." — Walsh, Proc Eut. SucPliila., VI, j "Mi. i' ■' 35 259. , VI, p. 260. 04. (Cat., etc, 68. ., Ill, p. 266. ax; abdomen otched, lobes ^es not very id at center; ately robust, aate beneatli, eriiig; claws Irate; iij^per :>t on vertex amen, incliul. frontal crest, isterior coxa , including all eerci, yellow- ;ed; antenmi' ;igma brown ; ienna> longer Color ]»lack; legs except 1, and bypo atli and also rioal, poa-likc, ■ tlio leaf and and attaclicd diuniotcr, uiitl is bnt one gall uro conlhiont. tie Klirivolod, robustly eon n Hcar. Onl.v Tlio point «( lioniisi)herical isibio. When Lcnglh 0.17 ky; eyo-spots •1 ajijiarently )nn(l to trauH )pono»l, larva' or. riiila., VI, Four females and Ave males. Illinois aiul New York. (Colls. Am. Int. Soc. and U. S. Nat. ]\rus.) Galls: liiclilield Springs, N. V., Tli. Pergande, collector, September |21}, 1886; adults (males) issued January 27 to l-'ebriiary 5, 1887. I'^ast pteainbiipjr, N. Y., K. L. Horton, colloctcu', September 25, 1894:; adult [issued 3Iarcli 28, 1895. 15. Pontania bnmeri new species. Female. — Leugtii 4.5 mm.; moderately robust; abdomen much broader than thorax: clypeus distinctly but broadly emarginate, lobes small; lateral walls «»f ocollar basin rounded, iiulistinct; frontal crest very slightly broken, prominent; third and fourth j()ints of antenna' sub- eijual; .^heath broad, scarcely tai)eriiig, somewhat obliijuely rounded at tip; secouil recurrent interstitial with second cubital; third cubital indistinct; ujipcr discivl of posterior wings considerably shorter than lower. Color black, shining; mouth ])arts, posterior orbits, angles *of pronotum. teguhe, legs except bases of (!oxa', brownish yellow; c veins light brown; stigma and costa yellowish, tin; former nearly hya- line basally. The abdomen in one specimen is yellowisli beneath at apex. (rdll. — (Frontispiece, fig. 7.) Galls occurring singly on tlie edges of the leaves of SdlLr lomjit'oUa^ having the form and geiu'ial characteristics of the gall of J\ pimera. and sheath brownish black; \eiiis dark brown; stigma lomewhat lighter basallv: wings very slightly inl\is(!ated. I One fenmlc. Soutliern i'alifornia. (Coll. Am. ICnt. Soc.) 36 \i II I Ifh 17. Pontania pomum Walsb. 18(J(i. Nemutiin aalicit! pomiim Walsh. I'roc, Eut. Soc. Pbil., VI, p, 255. 1866. ynnatus hos})eii Walsh. Pioc Knt, Soc. I'hii., \i, p. 261. 1867. XemutiiH aaUch pomum Norton. Traus. Aiuer. Ent. Soc, i, p. 216. (Cat., etc., p. 78.) 1867. Xematiia //osjus Norton. Trans. Anicr. Ent. Soc, i, p. 218. (Cat., etc., j). 80.) 1869. Xcmatim tiaUcis j)omum Walsh anil Kilcy. Am. Ent., ii, j). 15. 1877. Xfmatns K((liiin pomum IJiley. yth lvci)t. Ins. Mo., p. 20. 1881. Xvmatus naliris poruum Thonnis. 10th Ent. I?oi)t. 111., p. 68. 1882. yemaliii< sdliriti pomum Trovaacher. Nat. Can., xiii, p. 2il2. 18S;{. Xcmatus .salicis jnimum Provanchtsr. Nat. Can. llyni., p. 711. 1895. I'ontunia liospes Marlatt. Proc. Ent. Soc, Wash., ill, p. 266. Female. — Ijongth 5 to 5.5 mm.; very robust, shining; clypens ratlui deeply, but juigiilarly cnuirginute, lobes trijingular, rounded; ridges ot vertex about ocellar basin rounded, subobsolete; frontal crest broad, rounded, slightly notched; antennal fovea very shallow, elongate; antenna' short, not longer than head and thorax, joint 3 a little longer than 4 or 5; sheath very broad and robust, scarcely tapering, rounded at tip; cerci rather long, tapering; claws not very deeply cleft, inner ray much shorter than niter; venation normal, except that outer veins of the (liscal (lells of hind wings are usually interstitial. Color yellow ish ferriiginoiis; antenna', (juadiate spot inch)sing ocelli, with branclu's running to base of antenna', stripe on center of mesonotum extending to mesoscutelluni, spot on either side of scutellum aiul thorax i)0steri(»r to same, with basal i>]ates and narrow basal margin of the dorsal .seg- ments becoming indistinct toward tij> of abdomen, and sheath brownish black; antenna' indistinctly rulbus beneath toward tips; posterior tarsi slightly infuscated at tips; veins brown ; stignui and costa more inclined to yellowish, former not es[)ecially lighter at base; black stripe on mesonotum is sometimes interrupted or occasiomilly almost wanting. Mule. — Length \ mm. ; more slender and elongate than female; struc- turally as in fennile, excei)t that the antennae are longer; joints 3 to .'» snbe(|ual. Color brownish black, shining; head and thorax opaque from rather coarse puncturing; face below base of antenna', orbits, angles of i)ronotuin, tegiila', legs except bases of coxa', and abdomen beneath yellowish ferruginous; tips of anterior tarsi and all posterior tar.'-i fns(M)Us; antenna' iiilous beneath, especially toward tips; wings as in fennile, but sliglitly darker. '. I, ) 'riicfXiiU s. pomum found on .sv»/i.rrrt)7/; on one side of tli'' midrib of a leaf, and oxtiMidin^ to its erax posterior le dorsal sej.^- atli Orownisli losterior tarsi more inclined ick stripe on it wanting. male; striic joints .'3 to "i opaque from rbits, angles men beneafli sterior tar.si wings as in [in«l very rarely loiKitlialaiiHMi- mw Nido of tin' )al part of I lie L'd by tilt) leal, iipjMT HiirliU'f, II is toiiiii-(l ill to, O.IO toO.Ii jiaio iireoiiis!! iti tlio Jar ill lie gallti uiul .1 Six females and five males. Illinois. (Coll. Am. Ent. Soc.) Also two females (Cornell University), labeled as having been reared from gall of Vecidomyia strobiloides. [8. Fontania atra new spet^ies. Female. — Lengtli 4 mm.; slender, elongate; clypous nearly truncate; Iridges about anterior ocellus rounded or subobsolete; fovea very shal- jlow, indistinct; antcnme slender, fourth Joint distinctly longer than third; sheath slender, tapering, rounded at tip; claws with inner ray ■ considerably shorter than outer, not very deeply notched ; stigma ;>arrow, ^elongate. Color shining black, iniiomns ^ sjfcnitliKiifa Walsh), and a lepidopterous larva which eats out the entire I interior of the gall, tenthredinid larva and all. J / .vl t 38 Many specimens. Now Hampshire, Now York, Massachusetts, Penn- sylvania, New Jersey, and Canada. (Colls. Am. Eut. Soc. aud U. S. Nat. Mus.) Galls: Eoscawen, N. H., C. Y. Eiley, collector, July 16-25, 1383, "on Salix fragilh, a large tree, 50 to 70 feet high, with a rough bark and trunk, smooth branches, and galls very i)lontitul on younger leaves all over the tree." The adults were obtained between Ai)ril 29 and May 21, 1884; also chalcidid and other parasites. Magnolia, Mass., July 11>, 1883; gallmaker not reared. Ilymenop terous parasites issued .Inly 20, 1883. Kichfield Springs, N. Y., Theo. I'organde, collector, February 8, 188(5; adults issued ^larch 3 to April 21,1887; also chalcidid parasites and a dipterous guest fly. Pittsburg, Pa., J. C. Leach, collector, July 25, 1801. Pointe au Pic, (Quebec, Canada, E. Corning, collector, August 28,1801. 20. Fontania truncata new species. Female. — Length! mm.; moderately robust; (^lypeus almost squarely truncate, scarcely excavat* 1; ridges about ocellar basin and frontal crest rounded, almost obsolete ; antennal fovea large, circular ; antennic scarcely tapering, not longer than the head and thoiax; claws not very deeply notched, inner ray considerably shorter than outer; sheatli narrow, elongate, not acuminate, rounded at tip; venation normal. Color black, shining; clypeus, mouth parts, angles of ])ronotum, tognl!i'. \ oiicer of abdomen, and legs, except bases of posterior coxa^, yellowish ferruginous; sheath brownish at apex and on margin ; antenujc fulvous beneath, except ()n scape and first .joint of flagellum. One female. Southern California. (Coll. Am. Ent. Soc.) 21. Pontania atriventris new species. Female. — Length 1.5 mm.; moderately robust; clypeus distinctly emargiuate, lobes minute, pointed; frontal and laieral ridges of vertex rounded, subobsolete; antenn.o with Joints 3 to 5 suboiiual, fourth j(»iiit slightly longest; sheath narrow, elongate, tap(M'ing; claws deeply cleft: venation normal. Color black, shining, including orbits and venter of thorax and abdomen ; legs beyond (loxa- yellowisli brown ; femora darker, with upper and lower edges and the tips of ])osterior tibia' and tarsi infuscated ; clyi)eus and mouth i)art8 pale; wings hyaline; veins brown ; basal half of stignui hyaline. Three fenuiles. Mount Hood, Oreg. (Coll. Am. Ent. Soc.) Ihc Lar »d| lab| )0!! Ishc inci tar ill uoil Wgetl '- I' lii'ii.^ 22. Pontania californica new species. Fem<(le. — Length 4.5 mm.; moderately robust; clypeus rather deeply and not broadly excavated, lobes rounded; head rather strongly imnc- tared ; ridges about ocellar basin not well defined j auteuual fovea broad, 39 busetts, Penn- 3oc. aud U. S. -25,1383, "oil •ugli bark and iger leaves all il 20 and May tl. llymenoi) •rnary 8,188(1; parasites ami igust 28,1801. most squarely I and frontal liar; antennii' laws not very mter; sheatli wtion normal. otuni,te<,Mil!i', xu', yellowish ennje fulvous us distinctly ges of vertex (burth joint deeply cleft; nd venter (»t' mora darker, iii' anc.) itlier dcopl.,' ongly juinc- fovea oroaU; ircular, shallow, breaking through rudimentary frontal crest; antennte hort, not as long as head and thorax, scarcely tapering; sheath very arrow, elongate, not acuminate, rounded at tip; inner ray of claw con- iderably shorter than outer; venation normal. Color black, shining; abrum, mouth parts, angles of pronotum, tegulu', legs except bases of osterior coxte, abdomen beneath, except sheath, yellowisl. ferruginous; sheath brownish rufous, smooth, shining; antennje with llagellum inclined to rufous beneat'i ; veins brown, stigma and costa paler basally ; ftarsi somewhat infuscated. I jirale. — Length 4 mm.; structurally agrees with female; also colora- :|tional characters, except that the pronotum is entirely black, coxic alto- Igether black, and the venter of abdomen yellowish brown centrally, fucluding hyi)opygium. Gall. — Gall of the type (Icsmodioidcs, not differing in the dried speci- iinens in any noticeable manner from the latter. Length 8 to 12 mm. ormally but one gall occurs on a leaf. The galls were received from Ir. n. T. Turner, Eastlake, ('al., August 20, 1883, and the adults issued between September 18, 1883, and iVLarch 24, 1884. Nine females and 3 males, 8 of which — (J females and 2 males — were .reared from willow-leaf galls (tolleeted by Mr. Turner in California. |(Coll. \j. S. Kat. Mus.) I One male collected at Alameda, Oal., in March by Mr. Koebele, aud the others collected in Southern California. (Colls. U. S. Nat. Mus. and Am. Ent. Soc.) 23. Fontania gracilis new species. Female. — Length 5 mm.; sleiuler, elongate species; abdomen cen- trally considerably broader than thorax ; head very much narrow ,.• than thorax; clypeus distinctly, circularly emarginate; ridges of veitex ^Irounded, subobsolete; frontal crest broken: antenna' with Joints 3 to G subequal, fourth slightly Ion ;j;jst; sheath elongate, narrow, tapering; |claws deeply cleft; venation normal. Color in general black, shining; orbits, face beneath antenna', pronotum, teguhe, legs, and venter of j*abdomen reddish yellow; wings hyaline; veins, including all of stigma, ^^dark brown. (Hall. — Calls somewhat similar to denmodioidcs, but mucli more robust, ^nearly spherical, extending from midrib to considerably beyond edge of leaf; diameter to 13 mm.; surface smooth. (Jails collecte li \ 40 oi)solcto: ail teiiiial fovea shallow, uniting- more or less with the slight, (leprossion about anterior ocellus; antenna' very slender, rather eloii-i gate for the genus, Joints 3 to 5 subequal; sheath long, narrow, regii ' larly tapering to rather acute tip; venation normal; claws deeply clefi, rays subecjual. Color black, shining; mouth parts, a gles of ]>ru- notum, togulii'. and legs, including ti]>s of coxa-, whitish; upper and lower margins of femora are narrowly dark brown, and the tips of the tibia' and tarsi, particularly j^osterior pair, brownish; the posteridi orbiis are rcKldish yellow; wings hyaline; veins light brown, costa and stigma hyaline. One female. ]Mount Hood, Oreg. (Coll. Am. Ent. Soc.) 2.-). Pontania desniodioides Walsh. 1SU(). .\cmalii:i aaliiis dtsmudioidtn \Vtilwh. I'roc. Ent. Soc. IMiiliv., vr, p. 257. 186G. Xcmaiita intiiiiliiiiifi 'Wiil.sh. I'roc. Ent. Hoc. Phila., vi, p. 2(50. lS(i7. XemaiKx KiiliciK (IcsmodioUlcH J^iorUm. Trans. Am. Ent. Soc., i, j). 211. ({'mi. etc.. ]». 7:1) isi)7. XciiKitns iiiii>iiliiiiis Norton. Tran.s. Am. Eut. Soc., i, p. 218. (Cat., dr.. ]). 75.) 187S, Xtmnliis iiKiitilhnis I'lovanclMU. Can. Nat., x, p. 57. 1X81!. Xdiiatiin huiuiUiniK I'rovancher. Faun. Ent. Can. llym., p. 190. 1S95. I'dtiUmia iu(]iiiHua Marlatt. I'roc. Ent. Soc. Wash., iii, p. 206. Foiiali'. — Length .") mm.; rather robust; head and thorax strongly punctured, somewhat opaque; dypeus deeply and narrowly eniargi nate. lobes rounded; ocellar basin well defined, side walls thick; frontal crest large, slightly notched; antennal fovea elongate, deeply exca vated; claws rather deeply and evenly cleft; sheath narrow, long, ri'u ularly tapering, scarcely excavated beneath; cerci slender, tapering: wings with normal venation, except that the third cubital cell is nearly <|na(lrangular. ('olor of antenme, large spot including ocelli, stripe on anterior lobe of mesonotum, band in front of scutellum, most of meta notiiin, and abdomen dorsally ex(;ept sides and apex dark brown, ap])roaching Idack (mesonotum sometimes nearly altogether blacK, except scutel) ; occii»ut, balaiuje of mesonotum, and the mesepimera reddish brown, inclined to resinous; face, orbits, pronotum, .scutelliini, abdomen beneath, and legs yellowish ferruginous; veins and stigma yellowish brown, the former scarcely lighter basally. Mxic. — Length I mm.; structurally about as in female; vertex with numerous yellowish hairs; the ocellar basin less distinctly defined and the antennal fovea more triangular and deei>eniiig anteriorly; venation as in female, exce[)t that the intercostal vein is [)osterior to basal. Color brownish black; spot beneath antenna', cly])eus, mouth parts lower and inner orbits, pronolum, teguhe, legs for the most part, broad stripe on venter of abdomen and dorsal apex of same, yellowish: posterior (arsi iiifuscated; jiosterior orbits reddish yellow, fuscous; veins yellowish brown; stigma unicolcM'ons. ff'ij//.— Tlic Kiill i.H found on N. hiimilh. It iH '.inooth, llattish, llesliy, hohsHo, yellow- isli f^rciMi, nionothalamous, HcmicirouUu' in |j;unerulHbapoliko thusoodofaDostuodinni 41 ivitli the sliglif, r, rather ch)ii-( , narrow, re<;ii ^'8 (leeplyclefi,' I gles of iu(.. ^h; upper and tlie tips of the tlie ]»osteri(»r wii, eosta and '•) vr, p. 257. I, p. 211. (('ill., 2i:i (Cat., .-tr,. 190. 2(16. t)rax strongly owly eniarj^i thick J frontiil latcs, and on itroxiniiil segments of abdomen brownish blitck, lighter on abdonuMi; iintenna' fulvous beneath, dusky toward tips; sheath edged with lirown on tiie dorsal and api:';il nnugins; veins light yel- lowish brown: stigma and costa lighter basally. j\l<(le. — Agrees in general chariicters with the female. The dor,;um of lorax is black, and the basal segments of the abdomen are bhu^k <'en- rally, formin,; a narrow dark strii»e extending more than halfway to le tip of the abdomen. I One female and one male. Montana and Nevada. (Coll. Am. ICnt. loc.) |7. Pontania rugfulosa ninv species. Moh'. — Length i mm.; rather slender; head roughened, coarsely kuKitured, thorax with liner i)uncturing; clypeus deeply, narrowly |iiiarginatc, lobes triangular; lateral walls of ocellar basin indistinct or 42 if I '- "I w Hit Pc tttl er q^ur veins dark brown ; stigma unicolorous, brown ; costa lighter at extreme; b^se. wanting; frontal crest sliarply defined, prominent, sligbtly notched ii,. the center; antennal fovea very minute, almost wanting, circular antenna' longer than head and thorax, joints 3 and 4 subc'iual, joints ; to 5 nodose at tips; procidentia projecting more than its width beyoiuj terminal segment; hypopygium narrow, rounded at tip; claws deejilv .cleft; third cubital cell very short, (juadrate; upi>er discal cell of liind wing not exceeding lower. Color black; clypeus, mouth parts, anglo.> of pro iotiiin,teguLi', hypopygium, and legs, except bases of coxic, yellow ish ferruginous; tips of anterior tarsi faintly and tips of posterior tiliiic s . and their tarsi more strongly infuscated; antenna' fulvous benea1li:2_' jitent i#pc la Two males, one reared (!) from willow gall. iMichigan. (Coll. U. S*|l*^ Nat. Mus.) k«i|"i» jJited 28. Pontania placenta Norton. giving 1867. Kematus placentua Nortou. Trans. Am. Ent. Soc.,i, p. 213. (Cat., etc., p. 7,". ftlJl-gl Male. — Length 4.5 mm.; not very robust, shining; jjlypeus veiv*- ^ broadly excavated, lobes small; vertex rounded, smooth, with a dc('|) *^^^ furrow beyond lateral ocelli ; ridges limiting ocellar basin wanting oi ^^S* indistinct, as also frontal crest; antennal fovea large, very shallow,^ - " indistinctly limited; antenna^ slender, not much longer than head and gj^ p(j thorax; claws microscopically cleft at apex ; procidentia not or scarcely ^^ , projecting. Thefollowing veins are interstitial: Intercostal with basal, - ., second recurrent with second transverse cubital and outer veins oi discal cells of posterior wings. Color of antenna', large spot on head about ocelli, occiput, mesonotum and metanotum, abdomen above except „ L. .. narrow lateral edge, more or less of metepisternujn, and buses of puti mu terior coxui black; balance of body yellowish ferruginous. « ', Whei but r 29. Fcntania pallifrons Cresson. the }J 1880. Xematm paWfrona Cressou. Trans. Am. Ent. Soc, viii, p. 0. nKbt. An Mah. — Length 5 mm.; moderately robust; clypeus almost sqnarely truncate; mouth parts with short white hairs; vertex smooth, shinin;:; , ocellar basin distinctly defined; frontal crest rather large, unbroken; \a, antennal fovea very small, circular, more deei)ly excavated at lower ^ end, antenna' not much longer than head and thorax, robust and ^ \ tai)ering; claws large, deeply divided, inner ray much shorter than outer; {ipex of abdomen not strongly recurved; procidentia short. strongly constricted at base, apical angles acuminate; cerci rather long, spindle shaped, venation normal, except that the intercostal vein is at right angles to costa; stigma very elongate, narrow. Color black, ic 1891. Bin( One male. Canada. (Coll. Am. Ent. Soc.) shining; face below ocellar basin, oibits, pronotum, teguhe, all ot venter, and legs yellowish ferruginous; metepisteruum and extreme A Brui ¥4th low type A rlitly notched ii,, intiii^', circular Libc'iua], joints; ts width beyond ip; claws deeplv, Seal cell of liiiicHi th of 43 js of posterior coxir brownish black; tips of posterior tibiit> and ^i, and cerci, infuscated; antenna* unicolorous, brownish black. >ne male. Cresson's type. Texas. (Coll. Am. Ent. Soc.) Fontania pyriformis new species. (Frontispiece, fig. 5.) mrts " (. I " IP^^^' — ^'^lls occurring on leaves of Salix cali/onuca{?). Collected by •^- ... ' ' ' S ^ \|bcrt Koebele, Donner, Placer County, Cal., September 5, 18S5. Galls If ,^«c,f.v..- 4-■^ ■ 'OCur on the underside of the leaf, attached to or near the midrib, I posterior tihi.i .; ,, . , , . iilvous bo iMiiuly snigly, but sometimes two separately on the leaf, or more fre- 'hter at o f ' locntly partly coalescing, in which case one is usually abortive. They use pear shaped, attached rather broadly (.^ to i greatest diameter) at '^ larger end, and rather acutely pointed, sometimes slightly curved m. (Coll. U. S ,** tij), 0" more rarely bifurcate. They consist of a mere shell, con- tt|ining with the larva very little frass, as though the larva had sub- rfited more on secretions than on the solid interior of the gall — the gall giving now no indication of ever having been fleshy and solid. The (Cat., etc., p. 7," faJl-grown larva escapes through the base of the gall at its point of t^lypeus vj^iyattachment, emerging, therefore, on the upper side of the leaf. The h with a (ii>,,j,l^va is white,' with light-brown head and black eye-spots, 7 to liii,Ms<-li Zeitschrift, .\xxi\ , 1890, licit ii, p. 2;$7. Body large, liard ; clypens incised at tip; claws bilid; aiiteniui' long, freqiiPiit pale Itcneath ; stigma usually unicolorous; mesonotuui and luesopleurir usually n or sparsely punctured; Load subrotund; labium not or slightly prominent; ('ii;h dorsal abdominal segment of nialo subtriangular, ]iroduccd at a])ex; procidoiii truncate at apex; liyi)opygium narrow at ap<'x and subtruncately rounded; nIum of female small, narrow; apex never acuminate. The jiciius as characteri/ed above by Konowis perhaps the hirgest point of iiuinhei- of species of the several genera erected from the ol genus Xeuiatxs. It is ch)sely allied to the genus following it, but ditl'ei | notably in the characters of the head and wings and in the geiioi; appearance. The males of the smaller species are not so readily scp;. rated from the nmles of 7*o«/<(;'8 nm; or less black, except stunetinu's terminal ones. Femora, black 7. veii/rflNs Saj Hind femora only black 8. marlaitii Dyw Femora pale; orbits black or strongly infiiscated. Coxa' black; abdomen black above, except narrow apex of sdii of dorsal arcs J), airivepa n. >] Coxa- piil(>; abdomen with narrow transverse brown stripe* i' dorsal arcs, sometimes limited to basal segments, mostly p:ile sheath pale 10. coloriidensia n, s]' 45 DiptiTL's, T. I, [,. ,. Helt n, p. 'j'M. iiiii' long, froquoiit 3opleurir UHiiallyni y prominent; oi:.], it .'ij)ex; proci(1(Mii ely lonnded ; ulna aps tlie Ijirgesf ctedfrom tlic ol iiiffit,l)utdit}eij d ill the ffeiioi'ii b so readily .sc|i;.| 8 type species ' those origiiialll f)f the Americii, ''Htralis Say (tlil ^fly). In lialtitl to these. Somj the liglit-coloit lie species. rongly acnniiiiiit, -.- 1. vicinal in Cii occidentalia n. sn 3. latna ii. s|i •t. j)aciflcii8 II. s] - - 5. limbafitH ( 8. latifasciatnx ( Q twice us lon^i I arcs ahva^'s iim; . 7. venlralis Sn; S. marlattii Dviii row apex of son , 0. atfiveps \\. x\ l)rown stripeM m iits, nioHtly p.ile aolorudenaia u. b\< t'oxii' pale; iilxlonicii with broud central black strijie and with apex IxMieath >trtMi,L;lv inliiscated; sheath Idack. Sccontl i('<-urii'iit interstitial w 1th first (Mibital. 11. harrivt/toni n.fip. Second recnrrent received well within Me<-'ond cubital cell. 12. fylesiu. sp. Femora ])alc; orbits pale or reddish. Sheath broa 1, rounded or truncate at apex; stigma browu. i:l. kincaitli n. sp. Sheath nariow, t.ipering; stignui yellow 14. fonatim n. sp. Sheath narrow, tapering; stigma bicolorous; niese2)imera with lieetoral black spot 15. bivolor n. sp. Iload and thorax black ; ahdomeu pale, except somotiiues basal dorsal arc and, rarely, terminal arcs. Iliud femora black, at least ai»ioally. Hind tibia' with brown gradually increasing in intonsity from base to tip; orbits and mouth jtarts pale 1(5. tricolor n. sit. Hiiul tibia; with ))asal one-third or one-half white; head black. Elongate; basal are black. Tornunal segments black ; legs pallid and black. 17. riiforinctitH Harrington. Terminal segments yellow; legs reddish yellow and black. 18. erylhroijiister'Sovton. Short ovate; basal arc indistinctly or not at all infnscated. Three terunnal ari.s i)ale 11). co/v/Zhs Cr. Three terminal arcs black 20. dyari n. sp. Hind fenioia pale. A'^eins and stigma dark brown. Angles of prouotnm and the coxa; black.. 21. fuIvicriiK Prov, Angles, etc., pale. Lateral lobes mosonotum mostly black; basal segment of abdomen infnscated 1'2. 7>oj>i( /( n. sp. Lateral lobes mesonotum reddish; basal segment pale. 23. hiidaonii Dyar. Veins and stigma yellowish. Orbits and 8i)ot below bases of antenna- pale. 21. «Kr«/Hs u.sp. Orbits and spot lielow bases of antenna- black. 25. californicus n. sji. Head and thorax more or less pale above. Antenn.e yellow or ferruginous. Hind femora mostly black 2t). anteniiatuB n. hj}. Hind femora pale 27. »'i/»es(i Scop. Antenna-, black ; higs ])ale 28. vdirardnii Cr. Prevailing color of dorsum black; pectus and venter pale (except dusky spot on pectus of hjialiiiiia and minute one in case of rii/ita, and aomctimes venter of abdomen black in miHttiris). Head altogether black. Thorax with lateral lobes reddish; abtlomeii black dcu'sally. 21>. militurisCv. Thorax andabdoim-n reddish, except mesoscutellum, metauotnm and basal central area of abdomen 30. ihoracicits llarr. Head black ; mouth parts and orbits jtalo. Stigma and costa brown. Scutellnm hlack. Head nearly spherical, viewed latterly; clypens narrowly and deeply e.veavated, short, robust 31. odoruliis \>yi\v. O--^' i il ill y IM ill 46 Head normal, triangular; clypons rather broadly exci a, rlt gate 32. corneUi n. ,. Scutelliun pale. Postcvidr tibiii' and tarsi dark brown ',^\^. irilitieatus NO; i«S Legs altogetlicr resinous 34. magus n. - Stigma and costa pale. .Scutellum ontiri'ly or Cor most part black. Costa euliirged at apex ; small, robust species.. 35. (/uercws n. s Costa normal; elongate species. Lobes of mesonotum altogether black 36. hyalhnts n. s ^ Lobes Avitli light sutures 37. rertehraius s,i ; Scutellum pale 38. integer ^a J AAA. Dorsum pale (»r with few black sjtots.' ^ Stigma i)a]e. ..| Crest strongly bituborculate. '*. Claws normal 39. mendicua 'VValsl 'U Claws minutely cleft 40. vancourerensiti n. sj ,,3 Crest unbroken, straight 41. Koebelei ii . s]. t'' Bla Crest uubroken, curved anteriorly ; stigma narrow, straight on lower nun *| gin 42. j'ingnidoibum Iij;i 'i Stigma browu; body without dark markings 43. tinicolvr w.' | Males. Procidentia very broad and large.'^ Elongate, sleiuler; orbits black 44. longicornis \i.>: Short, robust ; orbits reddish 27. rihesii Sco; Procidentia narrow ; sometimes subobsoleto. Black; pectus always black. ; Body altogether black, except sometimes mouth parts, prouotnm, and tcgiil Legs, partictilarly lemora and posterior tibi.e, strongly infuscated. Ridges about oeellar basin i)rominent 45. iridescen" C:alM||Snui Kidgcs about oiiellar basin obsolete 46. decoratus rri)v*^m®P' Legs pale, except tips posterior tibiae and their tarsi. autfltua Clypeus distinctly emarginate; i)rocidentia minute. !!S- Stigma short, robust ; apical half hiud tibia», infuscated. ~" , 47. lombardwn.^ "ii Stigma ratiier elongate, acuminate; extreme tips of hind tilii: ^.i , sl^arply brown. J^^.^^ 'Three si>oc^8 of the luteus grou]) described by Norton are distinguishable by
  • J^^ . SligmalHx may prove to be a good species. Mendicus and tricittatua are clo^clj^?^ , allied, and i)robably identical, the oliler name, mendicus, holding. Monochroma "'i' «-*|*i.j., prove to be a light form of mendieiis. These species all fall in the table with vitiuh ffMta,t\ ens, with which they are closely allied. Stigmatns and monochroma may be good sjh fii|«icr cies. and the original des(Tiptions of them are apjjended (Nos. 47 and 48). The I'ui fy^i lowing synop.-sis indicates the color differences of this group: ha|Tin{ Dorsum pale, except tip of scutellum, metanotum, and stripe down tergum h*^oi $ 49. stigmatua Xoii hj^"" Dorsum with a black spot about ocelli and three on lobes of mesonotum ; body other iD;^»ge w is(! pale 9 39. trivittatus Kori i'^wBc Dorsum with two spots on mesonotum, tip of scutellum, and spots on metanotiiii ^ black 9 39. mendicus Walsh . ^. Insect altogether pale, including antenna; 9 50. monoohroma Nort i ^^ •In this character the two following species depart in this sex from the character Umbal ization of the genus. l .'{;i. irilineaius Xo; . .- 34. magus ii. 8 35. fjuerc'tn II, s 36. hyalhiHs n. s^ 37. rertebraitix s.i' ... 38. integer Sa Jn. mendicus Walsl vancdurerensix w. sj . 41. koebelel ii. >|i night oil lower mar pingnidflisiim li\;i . 43. vnicolor n. • longicornia n. > 27. ribeDii Scdi Venter black; second rernrrent interstitial. It. harringtoni n. sp. Venter pale; second recurrent not interstitial. 12. fylesi n. sp. Clypous nearly truucato; procidentia long and projticting, keeled. 20. (lyari n. sp. Logs pale, pygidinni pale 48. dubins n. sp. Body black, except venter of abdomen, femora, and sometimes terminal dorsal arcs. Abdomon entirely black dorsally. Orbits piilc; mesepiftiera black 13. kincaidi w. sfi. Orbits black; upper half of mosepimera pale. ... .30. //toracicw.'* llarr. Abdomen with more or less of dorsal segments laterally and apically jiale. rrocidciitia minute, usually slightly emarginate at tip; abdomen usually nearly interrupted Avith yellow centrally. 7. rentralh Say. I'rocideutiu medium, rounded at tip ; abdomen not as above. 10. coloradenaia n. sp. Black above for most part; pectus and venter pale. Stigma and costa brown. Dorsum, including scutclluin, black. Head nearly spherical, viewed laterally ; clypeus narrowly and deeply excavated ; short, robust 31. odoratua Dyar. Head normal, triangular; clypeus rather broadly excavated; elongate .* 32. conieUi n. sp. Dorsum black, scutellum pale 41. vancouvvrenaia u. sp. Stigma and costa palo. Procidentia as long as wide 39. mendiciia Walsh. Procidentia twice as bmg as widi 37. vertcbratiia Hay. iiotnm, and tegii ly infuHcated. . 45. irideacenx c rantennatua n. sp. $ 16. decoratiia Piwatticeps n. sp. 9 auntus n. sp. 9 lie, biimlor n. sp. 9 nfuscated. caBfornicus n. sp. 9 7. lombardfv n . ^; <»>U>radensis u. sp. ering; claws large, deeidy notched, rays e(|ii. Color blac'>" ; clyi)ens, apices of coxu', trochanters and tibiau^xceptai)i( ■ of posterior pair, and anterior tarsi whitish, iufuscated; posterior tai- with tips of i)osterior tibia', nearly black ; veins very dark brown, inclii ing stigma and costa, the latter to base; tegulte dark brown, strong; i infuscated; wings somewhat iufuscated. One female, Cresson's type. California. (Coll. Am. Eut. Soc.) clypei 2. Pteronus occidentalis new species. dorsal FcinaU'. — Length 7.5 .am.; moderately robust, shining; clypc; e||,cep broadly and shallowly emarginate, approaching truncate; antein fovea broad, tircular; antenna' distinctly tapering, not nuich Ion. than head and thorax, third Joint distinctly longer than fourth; upi middle cell of hind wings as long as or more commonly longer tli: lower; intercostal vein \ery close to basal vein; third cubital cell hm. sides almost parallel ; siigiici long, narrow ; sluiath rather shai'i'i pointed; claws evenly and rather linely cleft. Color black; triangul space below antenna', tip of clypeus and the nH)uth parts, pronoun vk^^ g tegula', legs except middle portion of femora and tii)8 of liiiul til»i, '^ry and n»ore or less of all tarsi whitish; tarsi and tii)8 of land tihi «iron< strongly infuscated, brownislk; venter of abdomen, except tip, i)al d|ort veins, inchuiing stigma and costa, dark brown; wings nearly hyalii ^^nts Nine females, three bred from willow larvai <'ol!ect('tl in Placer (^ouiiii ^'gijgiit Cal., and the others collected about Los Augelcs. (Coll. U. IS. Nat. Mil? oQijit; me ' Fou Oorne Weth .'{. Pteronus latus new sj)ecies. Fnn«le. — Length 8 mm.; very robust aiul broad, viewed I'rom abov abdomen scarcely constricted at base, sides nearly parallel; i'lypi very broadly and shallowly emarginate; antennal fovea tiiangnl.i distinctly excavated; ocellar basin well delined; IVoiital crest sliglni notched at center; antenna' moderately robust, tapering, Joints ',\ and sube(iual; venation nornml; stigma rather iniriow, tapering gradnal! to ai)ex; sheath broadly roumled on lower margin, jtointed at ni 'Tiiis, willi tlif t'dllowiiijj Civo HptMics, is nlliiMl to tho fftimis .InKiiDoiitmahis in t f'liiii'arlcr III' tlii^ HtiKnm, Itiit scciii ti» In- tlirowii oiif of (il(^ latter liciiiiH li,v lacKi; any iiuusiiai licvoloitiucut of labuuii unci otliur iiiuuth paits, us well as otUor tliai;i tors of tho fjoiiUH. ©libit rath* robuj Ooloi shea I brow Itdd «ilir(] ]OWi> iniiiii 49 p. 1. cnws eveuly but not very coarsely notclied. Color black ; area about baizes of aiiteiiiiJLN orbits, and mouth parts, i)roiiotuin, tegula', legs for the ig, obscured !'^ )eus rather d(c*1 eiiedjiiidistiiK^ shallow, indi , scarcely tap. i at all, iiK'Iiiic. >tusely poini,. led, rays e(|ii; iau!xcei)tai)i(ii posterior t;ii-( k brown, iiicli!, brown, stroj]-,. jt part, and venter of abdomen pale; femora, tips of hind tibi.e and feir tarsi, brown; veins and stigma brown, wings hyaline, slightly !>wuish beneath stigma. ?wo females. Massachusetts and reunsylvauia. (Coll. Am. Eut. FteronuB pacificns new species, (ewjrt?^.— Length G.o mm.; robust, shining; dypens broadly but dis- ctly emarginate; walls of ocellar basin distinctly defined; frontal st unbroken; fovea deep, oval; antenuie short, slender, scarcely ering, joints 3 to ~i subecjual; venation normal, except that the third ital cell is only about half as wide at base as at apex; stigma row, regularly rounded on lower margin, acuminate; sheath broad, ering to obtuse tip; claws not very deeply notched. Color black; ofypeus, mouth i>arts, extreme angles of pronotum, tegulic, terminal d'^rsal segment, more or less of venter of abdomen, together with legs lining; clypor ^cept bases of coxjc. dull resinous; posterior orbits reddish; wings eate; antciii lijj^aline; stigma light yellow; veins otherwise light brown. '!Four females. Dlympia, Wash. Trevor Kincaid, collector. (Coll. Cornell Tniv.) "^nt. «oc.) 1 fourth; upj ily longer tli; ibital cell li.n rather sharii ick; triangiil irts, ])ronoiiii of lund tilii, of Innd tilii ci'pt tip, pal. Sm Fteronxts limbatus Cresson. i> 1880. yematuis I i mbat ii i Crcason. Trans. Am. Kiit. .Soc, viii, p. 8. iFemale. — Length 7 mm.; rather short and robust, linely punctured, llllt shining; clypeus very slightly and broadly notched; frontal crest V^ry prominent, l)roa«lly curv<'d, unbroken; sides of ocellar basiu ft|rongly and sharply rai.seIiu\ (jni)ital (in one specimen latter vein is wanting), and outer veins of mid- dle cells of hind wings also interstitial; second and third transverse Ollbitals of nearlly eijual length; stigma ehnigate, narrow, terminating rather abruptly; sheath short, broa i (I r ^ 'ii I 50 6. Fteronus latifasciatus Crcssoii. 1880. Nenatus latifasciatits Cressoii. 'rrans. Am. Eut. Soc, viii, p. 7. 1886. Xematim latifascialits rroxiiimhesr. Add. Fiiuii. C:iii. Hyiii., i». 21. 1895. XematiiH latifuaviatiix Dyar. Trans. Am. Eiit. Soc, xxn, p. 301. toiirtli iadiiic Female. — Length Smm.; .somewhat elongate, shilling; elypeu.s .slneelJ nc lowly and broadly emarginate, lobes short, broad ; frontal crest and .si(iw||est of pentagonal area strongly raised; antennal fovea large, oval, det'iib^t'a excavated; antenna' nnusnally slender aiuHong, almost e(nialingtlnii;lai^e, and abdomen in length, third and fourth Joints subequal; iutere(ts;d«fsui oblique and almost its own length anterior to basal vein; upper cell Mad t hind wings extending nearly oncfourth its length beyond lower; sti.m b*|MuK narrow, elongate; sheath moderately robust, obtusely pointed, wi of ant straight ui>per margin ; cerci very slender and nearly as long as .seto^ iW|nti transverse cubital vein; claws very deejdy notched, rays almost e(]ii e»let Color of head, thorax with basal plates, four terminal segments of alni a||Wsof ant twme rior tarsi dusky; tips of clypeus, labrum, bases of nuindibles, palpi, x ***^ *' basal half of hind tibia' whitish; upper margin of pronotum, tegui f^'*^^' first four segments of abdomen dorsally except .apex of fourth, all ^**y ' venter, and legs yellowish ferruginous; wing veins, including co.^t veins, brown. l>K>wii basal One female, (Jresson's type. New Tlampshire. (Coll. Am. Ent. Sot jj/,,/ Mr. II. (J. Dyar has characterized the larva (1. c.) from speciuiui rf^hei tiirall; procii bioad or sli found on birch 7. Pteronus ventralis Say. 1824. Xemahis rcntraHii Say. Koatiiij;'8 Narr. Exp., ii, Ap)>., p. 315. 1859. Xcmatiis riiitntUx I.eCoiitt'. Say, Eut,, u, p. 211. 181)1. XcmaliiH n iiindm iNorfon. I'roc. Host. .So(!. Nat. Hist., viii, p. 159. 1867. Xciiiiiliin viiiitraJin'Sovtou. 'riniis. Am. Ent.Soc, i, p. 201. (Cut., etc., p. ti; ftt ap 1869. XvmatiiH nittniliH UrnMcr. Miit. Corr. Harr., p. 270. 1870. Xcmnliit) vviitnilh KMlcy. Am. Ent. and Hot., ll, ]). 276. 1873. Xcmatiis vt'iilrdlis Sylvt^stcr. K'cpl. U. S. l^o)»t. Aj;ri('., p. 251. 1881. XemitliiK irntnilin 'riiomas. Kith 1,'op. Ent. 111., 18S0, p. i',H. 18H5. Xvmiilit8 vviilniliH EorltcM. 1 Itli Kep. Knt. 111.. 1881, p, 117. 1S88. Xniiyar. Trans. Am. Ent. Soc.,xxii, ]». 301. Female. — Length S mm.; only moderately robust; abdomoii broadi- beyond middle, shining; clyi)eus broadly and shallowly eiiiarginat- lobes rounded; frontal crest large, iiulistinctly broken; ocellar bas: well dellned; antennal fovea (h'ei», elongate, triangular; antcnuiv sk" der, distinctly tapering, snn>o(h, third joint usually slightly e^ceedin bdse; emar< ftonxi m- excel beuej bases tilbia' Kat. A tUBl i rj^ 61 (.-s .C-:r toarth ; upper middle cell of hind wings short, quadrate, termiuating III, i>. 7. it ©r usually within apex of lower cell; intercostal vein very slightly nil., p. 21. iadined, interstitial, or nearly so, with basal; second recurrent inter- '' ''■ ' ■ ititiiil, or nearly so, with second transvers*- cubital vein; third cubital g; clyi)ens sli;eell not strongly divaricating apically; stigma broad, rounded beneath, al crest and .sidwidest at center; sheath pointed, slightly excavated above and rounded ge, oval, dc<*]ib6pcath ; moderately lobust; cerci robust, obtusely pointed; claws equaling tlioilam^c, deeply clett, rays subequal. Color brownish black, including lual; intercosidersniii generally, coxa-, femora except tips, tips of hind tibia', all of in; upper cell htad tarsi, slu^atli, cerci, and more or less of apex of abdomen beneath; d lower; (sti::i btfjince yellowish white, viz, inner and outer (ubits, face below base y pointed, wi of antenna', pronotum except two or three dusky s]K)ts (sometimes s long as seto; wanting), tegula", hit- ys almost equ ^1 edges of thorax and gmentsof alxi aljdomen, and venter; ilf of hind til»i i«|lpi,moreor lessofex- ck; tipsof am tieme tii»s of fiu'e tibiae, ibles, i)alpi, ii; MUl commonly some of )notum, tegiii ff»re tarsi dusky; wings of fonrtli, Jill very faintly smoky ; ncluding cost veins, including stigma, brown, costa pale on basal half. Mult'. — Length 7 mm.; rather elongate; struc- turally as in female; procidentiji. as long as bffoad, narrow, taper- ing, .s(pmrely trnncate or slightly emarginate at apex, constricted ai- bftse; hy))opygium emarginate as viewed from end; antenmecom pressed latt'tiilly, stonter tlmn in fennile. Color as in female, except tkat the inner orbits are bhuik and the legs are dark reddish yeHow, except l>iist's of (!oxic and posterior tarsi; abdomen reddish yellow bftiieath iind dorsally over segments 2 and A and less on f(»lIowiiiig«mes; bases of all dorsal segments dark, terminal ones particularly so; hiiul ttt>ia> very slightly infuscatcd, particularly at tips. Many bred specimens of both sexes. Washington, I). C. (Coll. U. S. Hat. Mus.) A male aiul a female from Carbondale, 111. (Coll. Am. Ent. Soc.), 4^'er from the above in that the fennile has the upper middle cell of hind wings exceeding th(^ lower, and in the male the same termi- tes at anex of lower. Three males from ^Michigan (Coll. U. S. Nat . Am. Ent. Soi from speciimi II, p. 15!». (Cut., etc., !•. ti; , 254. K 7. r>i. ». i;», 78. II. r>LM, 5S». M ill-ell). )l. omen broaih ly emarginai' ocellar bas: antennae sh' itly exceed iii Fid. H.—l'trroinin vi lit rails; a, liirvio fcoiliii;;; fc, Inrvn, oiiliirgt^d; c 11(111, 1111(1 (i, iidiill — both ciilinxetl (I'l'tiiu liini'ct LilV). HPIBRI H N; I I ^ I ( i: 52 Mus.) vary from above in having an elongate upper middle cell in hi; wings, which, however, does not exceed lower, and in that the iiiti, costal is a little anterior to basal. Food-plants: Popiilus imd Salix. 8. Pteronus marlattii Dyar. 1891. XematHs marlailiillyin-. Trans. Am. VAit. Soc, xxii, p. 305. tie sal b^iall Female. — Length a.o mm. ; moderately robust, shining ; clypeus broad and shallowly notched; ocellar basin deep and with well-defined wall frontal crest unbroken; antennal fovea large, triangular, deeply e\( vated; antenna- slender, third and fourth Joints subequal; venatii normal ; stigma broad, ovate, widest at center, rounded on lower mar.nii'** sheath broad, obtusely pointed, upper margin slightly emarginar*'. claws deeply cleft, rays sube(pial. Color of head, thorax, epimera air^ dorsum of abdomen for the most part, and outer half of posterii^W^ femora black; apices of i)osterior tibiic and their tarsi dusky; I'ai below antenna', mouth parts, (U'bits, angles of pronotum narrow! teguhc, narrow apical nuirgin of dorsal segnumts and last two segment' venter except epiineia and some dusky spots on lateral margin > j^ali abdomen, and legs ex(!ept as noted pallid, inclined to yellowish; apiiolneg of sheath brownish; antenna' ferruginous beneath and toward apoiti^tly veins, including stigma and costa, the latter nearly to base, brown, tifi^ng Characterized in manuscript by me frcmi a specimeu collected in Ne*' .^ Hampshire (Coll. Am. Ent. Soc); lirst published by Dyar from "^'f'/ specimen bred from larva on alder (Dyar's Coll.). Jj . 9. Pteronus atriceps new species. Iwft of Feuudi: — Length (5.5 mm.; moderately robust; clypeus very broadl^l'*, and shallowly emarginate, lol»«s minute; frontal crest strongly dcvt P^ oped, entire; lateral walls of oceUar basin not strongly raised; fov( W^ elongate, deep; antenna' medium, with Joints 3 and 4 subequal; tliir^^'^^ enbital cell not more tlnui one lliird as wide at base as at apex, aboii ^"^ **' four tinu^s as long as wide at base; venation otherwise normal; stij^iii m^j, broad, rounded on lower margin, ta])ering gradually from near base t jj^^^ ^ tip; sln'ath broad basally, tapering to an obtuse tij), upper marui straiglit; claws not very deeply notclied, inner ray nearly as long ;i 11» Pt outer. CoU)r black, shining; tijjs of clypeus, mouth parts, tegulu JVw legs except coxa', and venter of abdomen, including lateral edges v dMpl; dorsal sclerites, yellow; upper i»osterior orbits and outer angles of i»im foyea notum reddish; legs slightly infuscaled, particularly the tarsi; sheatl anten dark brown; veins brown, stigma unicolorous, brown. One female. Nevada, (('oil. Am. Ent. Soc.) 10. Pteronus ooloradensis new species. Female. — Length (I mm.; rather (elongate, surface shining; elypcu- deeply, circularly emarginate, lobes rounded; frontal crest aiul sides n' right Btigni very proni toget aikl 1 J;i W^^ - 68 ,. +i.„4- 4-1 • '^fllRagonal area distinctly raised, former 'inbrokeii: antennal fovea II that the iiitf, ^ . , ^ ,11 ^ , , , ^, ^, . , leep, tnaugular; anteima} slender, longer tiian head and thorax, third ind fourtli joints equal; intercostal vein its own length anterior to )a8al vein ; upper cell of hind wings exceeding lower ; stigma broad, •ounded on lower margin ; second transverse cubital one-third length .305. )f third, or third cubital cell strongly divaricating; sheath very nar- •clypeusbroad ®^ ^"^^ obtusely pointed at tip, smooth, without or with very minute jll-delined wall'^*^^' ^^^^^ short; claws deeply and almost evenly notched. Color of lar deeidv e\(''®''^^ except faint ferrugiu(ms touches about orbits, thorax, the first equal • venatii'^®'*^^ sclerite of abdomen, and bases of posterior coxre black ; following )n lower mar" '^®'^''' sclerites of abdomen with interrupted brown stripes on each; tlv emaiffin f*°^""'^ brownish, lighter beneath, especially toward tips; extreme tips ax eoimera • P<*^^^'<^'^ femora, apical two-thirds of their tibiiii and all their tarsi, tips alf of noster °'^^^^^^^ pairs of tarsi, and narrow margin of sheath fuscous; clypeus rsi duskv (' i*** **i<^'it^ parts light resinous; legs and abdomen, except as noted, otum narroMV^^* ^^^^^^iji^^'^i^ > wi"S veins light brown, stigma and costa paler st two segment *^^* teral margin ^ale. — Length G mm. ; slender, elongate ; clypeus broadly eniarginate, yellowish; apijoiigg short, pointed; walls about ocellar basin very minute, but dis- d toward apcitinctiy defined; crest unbroken, not strongly raised; fovea very shallow, base, brown, triangular; antenna) robust, strongly tapering, somewhat flattened, ollectedin NnJ**^^^^ 3 to 5 subequal, third a little longer than others; venation nor- Dvar fr ™'"^' procidentia narrow, projecting somewhat more than its width, TOlluded at tip; claws rather deeply cleft, rays subequal. Color black, shining; mouth parts and legs, venter of abdomen, including more or leiijll of apical edge of dorsal segments and nearly all of terminal seg- is very broiidl "*^*''^' y^^^^o^^'ish ferruginous; angles of pronotum widely, andteguhe strongly dovoP*"^^^^^' wings hyaline, veins brown, including stigma and costa; hind y raised* fovi ^^^^ '*'"*^ their tarsi brownish; posterior orbits very faintly reddish, ubequal* ti,j,, strongly infuscated; autenme reddish, especially beyond basal joints at ai)ex,' abmi »»* «" '^wer edge. lormal; sti^iii rphree females and two males. Colorado and Montana. (Coll. Am. But. Soc.) Ml near base t upper maiui irly as lon^ :i parts, tegiil;i 11* Pteronus harringtoni new species. Pemale. — Length 7 mm.; robust, shining; clypeus broadly and not iteral edges n deeply notched; ocellar basin distinctly defined; crest strong, unbroken; angles of inn fovea deep, with lateral channels running from it over bases of antennae ; L'! tarsi; shciitl antenna! short, tapering, joints 3 and 4 nearly equal; intercostal at right angles, or nearly so, with costa; second recurrent interstitial, stigma rounded on lower margin, somewhat acuminate at apex; cerci very short; claws deeply cleft, rays equal. Color black; angles of , . . pronotum, tegulro, legs for the most part, and venter of abdomen, . ' .y ^'^JP^^'®'' ^^^'' marginal third of dorsum, reddish yellow; tip of clypeus mouth parts yellowish, infusct ted; extreme tips of posterior tibia) [lifl \ ml . 'i ■ III \ \ I ill I 54 and posterior tarsi brownish black; wings with dusky band extendiii iBtw&ft*' transversely below the stigma; stigma and veins dark brown. wtilai^ly Male. — Length mm.; rather slender; characters of head and antenm iM^ossibl as in female; procidentia short, narrow, slightly constricted basallj HJK'e bei^ truncate at apex ; venation as in female. Color black; border of pr( i^llo\vin notum and teguhv yellowish; legs as in female; basal half of ventc of abdomen beneatli reddish, strongly infuscated; dusky band o wings somewhat lighter than in female. One female and one male received from Mr. Harrington, who report that this species has been somewhat abundant on willows on tli. experimental farm at Ottawa, Canada. He was at first of the opinioi that it might prove to have been introduced from Europe, but it seeiii; to be distinct from any European species and also to be new to ou fauna. I take pleasure, therefore, in dedicating it to Mr. Harrington A male specimen has since been submitted to mo for identification b\ Rev. Thomas W. Fyles, of South Quebec, Canada. (Coll. U. S. Nut. Mus. 12. Fteronus fylesi new species. 1891. Xematuit pallidirciilriH rallen. Fylca, Can. Ent., XXIIT, p. 13.". Female. — Length 7 mm.; robust, shining; clypeus circularly emargi nate, lobes rounded; walls about ocellar basin well developed; frontal crest unbroken ; fovea oval ; antenuic slender, tapering, longer than head and thorax, third and fourth Joints nearly equal; venation normiil: stigma broad, regularly tapering towiird apex; slieath broad, taperinj,', slightly produced, and with a rather dense tuft of short hairs atextrenu tip; cerci short; claws deeply and evenly cleft. Color black; triangit beneath bases ofantennu', clypeus for the most ])art, labrumand other mouth parts, pronotum, tegnla', abdomen except broad dorsal stripe, and legs for tlie most part reddish yellow; sheatli, cerci, extreme tipsj of posterior tibiic, and the posterior tarsi dark brown; anterior tarsi slightly infuscated; extreme bases of coxa' brown. Male. — Length (I mm.; slender; structural characters in general as in female; antenna' somewhat stouter, slightly compresse l*rovan(;her. I have comi)ared tlic species with specimens of palUot on pectus, together with ti]) of sheath ; face white ; orbits and venter ])al!id, inchid ing also lateral edges of terminal abdcmiinal segments above and Jill oi last segment; wings hyaline; veins brown; stigma pale basally. Two females, Mounc Hood, Oreg. (Coll. Am. Ent. !Soc.), and Olympia, Wash. (Coll. Cornell Tniv.). 10. Pteronus tricolor new si)ecies. FcmaU'. — Length 7 nun.; moderately robust, shining; clypeus broadly and shallowly emarginate, lobes triangular; frontal crest and sides of l)entago:ial area sharply defined, former unbroken; antennal fovea cir cular; intercostal vein more than its own length anterior to basal vein; third cubital cell not much nujrc than one-half as wide at base as a! apex; stigma moderately broad, rotinded on lower margin; upper mit.^n--t- 67 pits, venio Ancd and strongly raised walls; frontal crest prominent, sharp, »se; stigiir ^broken; fovea distin(!tly defined, oval; second, third, and fourth its of antciin:e subeciual; venation normal, except that the third )ital cell is ciuadrate; sheath short, obtusely pointed, quite densely khed with hairs; cerci slender, sli*;htly tapering; claws deeply cleft, ys subequal. Color black; center of basal segment of abdomen fove and all of three following segments ai>d wk\-, or less of the base the succeeding segmetit reddish yellow; ti]) of dypeus and month Irts, anterior legs for the most part, coxa' except bases, trochanters, [,ses of femora, and basal half of tibia' of hind legs pallid; angles of [onotuni and the teguhc i)allid, infuscated; femora of fore and mid- |e legs lather strongly infuscated; stigma and veins dark brown; ings nearly hyaline; spot in second cubital cell prominent. tltcdescribed from Harrington's type apecimen. (Coll, IFarrington.) J. Pteronus erythrogaster Norton. 18()1. Xcmatnn criithroiiastcr Norton. Proc. Ent. Soc. Pluliv., iii, ]>. S. I8()7. ycmahis cnjlhrogaster Norton. Trans. Am. Eut. Soo., i, p. 20."). (Cat., viv., p. (;?.) 188(3. \cniatu8 crjilhrogaater Provauclier. Ad«l. fann. Can. llym., p. 23. Femah: — Length 7.5 mm.; moderately robust, shining; head and tho- i\ finely punctured; clypeus shallowly and broadly emarginate, lobes Hangular, rather pointed; frontal crest and sides of pentagonal area trongly raised, former unbroken; antennal fovea circular, deeply exca- |ate(l; antenna' moderate, somewhat longer than head and thorax; itercostal very near basal vein; second cubital cell more than two- Jiirds as wide at base as at apex; upper cell of hind wings exceeding )\ver ; stigma broad, ovate, not attenuated ; sheath rather r(>bust, rugose Ind with numerous hairs. Color of head and thorax for the most part, iasal plates, iirst segment of abdomen dorsjilly, sheath, cerci, extreme kases of hind coxa', tips of hind femora, apical two-thirds of hind tibia"!, ^nd all of hind tarsi black; extrcTue tips of clypeus and the labrum, |)a1pi, outer angles pronotum, teguhc, abdomen, and legs, exce])t as ioted, rufous; basal third of hind tibia' whitish; veins and stigma in general brown ; costa and some of posterior veins light. Two females. Maryland (Coll. Ar.i. Ent. Soc), and Ithaca, N. Y., . r.anks, collector (Coll. U. S. Nat. Mus.). h). Pteronus corylus Cresson. 1880. XemaiiiH coriiliis Cresaon. Traiia. Am. Ent. Soc, viii, p. 8. 189."). XematiiH covyhi8 Dyar. Trans. Am. Ent. Soc, .\xii, p. IJOG. jPewm^c— Length to 7 mm.; head and thorax ratlier coarsely punc- [tured, somewhat shining; clypeus very shallowly emarginate, lobes {very short and broadly rounded; frontal crest and sides of ocellar basin distinctly elevated, former unbroken, or rarely indistinctly so; antennal oryshal l^'^vea broad and shallow, antenna; long, tai)ering, third joint longer sharply m ^^'"^ fourth ; venation normal, second tiansverse cubital nearly as long niarginnto lis: front; a' alendci nil; stigiii: oward fi|i Jde; daw |l»,thebliicl oints, laryf I abdomen on pectus, "i«l,inclu(l. inid all 01 ally. il ^>Iyinpi;i, HIS broadly id sides ot 1 fovea cii ^asal vein; base as ai ipper mid polished, fchorax for ds on two th, apical gradually ns of the ; balance angles ol as noted, ged witli seoflat I) ii 58 "ill t \ i \AM^ as third; stigma robust, rounded on lower margin; sheath not ver; robust, rounded at apex, and with rather long and dense hairs; cen long, slender, as long as or longer than third cubital cross vein; claw deeply cleft, rays nearly equal. Color of head, thorax, base of firs dorsal sclerite, sheath, extreme tips of posterior femora, apical halt- sharply defined — of posterior tibia', and their tarsi black; sometime the dorsal middle of segments 2 to 4 and rarely (» and the cerci brown ish black; bases of antenna', tips of clypeus, and the labrum, palpi- outer angles of pronotum, tegula', legs, and abdomen yellowish ferni ginous; posterior femora and abdomen darker; veins and stignii brown ; costa yellowish. Four females, Oresson's types, Pennsylvania (Coll. Am. Ent. Soc), and seven females brod from larva' on aide.-, Cadet, Mo., October 5, 18S| (Coll. U. S. Nat. Mus.). Adults emerged during latter i)art of Mardi and early in April. The last larval stages ind the cocoon are described by Mr. H. C. Dyar, who states that tlie larva' are gregarious edge feeders on alder. 20. Fteronus dyari new sjiecies. Female. — Length (5 mm.; very robust; clypeus nearly truncate ; ocol lar basin well defined, with prominent anterior angle; antennal fovoii very shallow, indistinct; head and thorax coarsely punctured ; anten noB but little shorter than the body, tapering, third joint longest; vena tion normal; stigma stout, regnlarly rounded on lower margin; sheatli short, stout, scarcely projecting; claws deeply notched, rays subequal Color black, shining; mouth parts strongly infuscated; anghis of pro notum, teguhe, first to fifth segments of abdomen ventrally and dorsally. yellowish ferruginous; coxjc except bases, trochanters, basal half oi l)Osterior tibia', whitish; anterior tibia* and tarsi and anterior and pos terior faces of anterior femora, together with bases of middle pair, \)i\\- lid; wings nearly hyaline, or very slightly infuscated; veiu^:, including stigma and costa to base, very darlc brown. Male. — Length 5.5 mm.; structurally as in female; procidentia lonj:. projecting; antenna^ more robust, tapering. Color as in female, except that the abdomen is wholly black and the legs are yellowish, except extreme tips of posterior femora and apical half of posterior tibia^ ami their tarsi. One female and one male, Dyar.) II. Ct. Dyar, collector. New York. (Coll. 21. Fteronus fulvicrus Provanchor. 1882. Xematua J'lilvicrua Provauchcr. Nat. Can., \lii, p. 291. 1883. Nematus J ulvicrtis Provaiiclier. Faun. Knt. Can. Hyni., p. 740. 1890. Xematus sulicis Aslimead. Bull. Colo. Biol. Assn., i, i». 1.5. 1894. Ncmalua mlidcola Dalla Torre. Cat. Hym., i, p. 257. Female. — Length 8.5 mm.; robust; clypeus broadly but not very deeply notched; walls about ocellar basin distinctly defined; cresi 59 not ver- Jairs,' cen lein; claM Ise of firs fcal half- sometime kci brown jum, paljii. kish feirii [nil stigiiu *Jnt. Sor.l ber 5, ISsi fc of Mai(!li ! described ious edge cate; occl unal fovo;i ed; an ten I'est; vena in; sheatli i subequiil, lr and pos ' pair, Pill- inchiding sntia ](m<:. lie, except sh, excejit tibije and k. (Coll. not very dj crest )Tninent, unbroken; fovea shallow; antennsr tapering, somewhat iger than head and thorax, joints 3 and 4 sube are entirely light and the bases of anten na', si)ot beneath, angles of pronotum, and tegulas are whitish. One female. Washington. (Coll. Am. Ent. Soc.) This species is closely allied to californicus, but differs from it in what appear to be good structiiral characters. 25. Pteronus californicus new species. Female. — Length G.5 mm.; robust, gMstening; clypeus very broadly and shallowly notched, lobes rather i)ointed; frontal crest strongly developed, rectilinear, extending nearly to orbits, unbroken; sides of ocellar basin minutely but distinctly raised; antennal fovea deep, broad-oval ; intercostal very oblique, anterior to basal ; second recurrent nearly interstitial; second transverse cubital more than one-half as long as third; upper middle cell of hind wings exceeding lower; stigma robust; sheath narrow, obtusely i>ointed; cerci slender, tapering; rays of claws unequal. Color of head, thorax, basal plates, base of first dorsal sclerite, and bases of coxa' black; tip of sheath, posterior tarsi, and wing veins, including costa nearly to base, brown; stigma lighter; clypeus, bases of mandibles and labrum, yellowish white; outer angles of pronotum, tcffulai, palpi, legs and abdomen, including cerci, yel- lowish ferruginous; upper orbits with slightly reddish tinge. One female. California. (Coll. Am. Ent. Soc.) I ' 61 thirdl sheatlj polor 01 iiiotniii, blacki brown: j |ien, aiidl ins aiii] liyaliiK', poplar, broadly.! miineiitJ sin very[ Einteiina' al, third I ma mod u arrow, | scarcely s in call- of an ten ; in what broadly strongly sides oC i deej), jcurrent -half as stigma g; rays of first )r tarsi, lighter; ' angles ci, yel- 20. Fteronus antennatus new species. Female. — Length mm.; rather robust, shining; clypeus circnlarly jbiit shallowly notched, lobes minute; ocellar biisin distinctly detined, iHidt's sharply raised ; frontal crest broad, rounded, unbroken; antenna! Ifovea deep, circular; antenna' very long, slenp. 17, 93, 112. 1X69. Nematua ventricoaua Bowles. Can. Ent., ii, p. 115 1870. Nematua ventricoaua Siiundcrs. Can. Ent., ii, pp. 1 16-1 19. 1870. Nematua ventricoaua Packard. Packard's Guide, p. 219. 1870. Nematua ventricoaua Glover. Ann. Kept. I'. S. Dcpt. Ajj;r., p. 77. 1871. Nematua ventricoaua Howies. Can. Ent., iii, p. 7. 1871. Nematua ventricoaua Saunders, Can, Ent., ni, pp. 25-27. 1871. Nematua ventricoaua .Jones, Can. Emt., m. p. 37. 1872. Nematua ventricoaua Packard. 3d Mem. Peabody Acad., pj). 1-17. 1874. Nematua ventricoaua Riley. 6th Kept. Ins. Mo., pp. 43, 149. ' The above bibliography omits all European literature except the first description and the last generic reference, and also many of the shorter or less important Ameri- can writings. I' 'il '\i \i\ 4r. 1 1 ii l:i h: i e$ I : 1874. Xematua venirico8U8 Provancher. Nat. Can., vi, pp. 186-192. 1874. .Yfmrt/«8 ventricosua Cook. 4th Ann. Kept. 8t. Tom. Soc. Mich., pp. 379-3t<(l 1874. Xemafiis ventticoms Siiundors. Can. Ent., vi, pp. 101-101. 1877. Xematus rentric.ux Riloy. flth Ropt. Ins. Mo., pp. 7, 10, 21-22. 1877. Xematus ventrkosua rackanl. Ittli Kept. U. S. Geol. and Geog. Surv., 187," p. 787. 1878. Xematus ventricosus rrovuncher. Nat. Can., X, jt. M. 1879. Xematus rentrkosits Riloy. N. Y. 'rribuno, Juno 11. 1879. 1880. Xematus nntricosus Fuller. Am. Ent., iii, ]). 92. 1880. Xematua rihesii Flotcher. Entom. M:i«,'., xvi. i>. 278. 1880. Xematua rentiicosua Thonuis. .^)th Ropt. (10) Ins. 111., p. (W. 1881. Xematua rentrkosus ('oi|uill«'tt. lllli Kept. Ins. 111., pp. 5, 4G-48. 1882. Xematus ventrivosus Sauntlers. Can. Knt.. xiv, p. 147. 1883. Xematua rentricoaus Lintnor. Proc. Am. Assn., xxxi, pp. 471-472. 1883. Xematus reutricosus Li'itnor. I'syeho, iv, i>i». 48-.")!. 1883. .Yemrt/«» reutriiosus I.lntuer. Can. Knt.. x v, p. 200. 1883. Xetnatua rentricoaus Provancluir. Potito Eauno Ent. Can., ii, p. 188. 1883. Xematus renlrieosua Eylos. ('an. Ent., xv, p. 205. 1883. Xematus reutiivosua Riloy. Slotldart's Encyclo. Amor., i, iip. 135-142. 1883. Xematua ventricosus Saun«lers. Ins. Inj. to Emits, pp. 339-342, 3G0. 1885. Xematus rcnlrieoxua Lintnor. 2(1 R«'pt. Ins. N. Y., pii. 217-221. 1880. Xematus rcntricosus Lintnor. N. E. Iloniestead, x x, p. 189. 1886. Xematua rentricoaus Eorbos. Entom. Amcr., ii, p. 173. 1887. Xematus renlricosus Lintnor. Poi>ular (Jardoning, il, p. 120. 1887. Xematus reutricosus lAninvr. Albany KxitrosM. xi.i, p. 2. 188S. Xeviatus ribesii Eornahl. Mass. Hatch Exp. Stii. Pnll., 2, p. 7. 1888. Xematus rentricosus Lintuer. 5th K'opt. Ins. N. Y., pjt. 156-157. 1888. Xematus reutricosus lla: ,oy. Ann. Koi>t. Maino Kxi». Sta.. pp. 182-184. 188S. Xematus reutricosus Wood. 7th Ann. Ropt. Oliio Agr. Exp. Sta., p. 152. 1889. Xematua ribesii Elotdicr. Can. Ent., xxi, )). 150. 1889. Xematus rentricosus Woed. Hull. Ohio Exp. Sta., Ii, No. 1, p. t». 1889. Xematus reu'rivosus Hall. Ins. Lil'o, i, p. 310. 1889. Xematus rentricosus IJeckwith. lUill. iv, Del. Agr. Exp. Sta., p. 15. 1889. Sematus rentricosus Iv'iloy and Howard. Ins. LiCo, i, ]». 229. 1889. Xematus renlricosus llulst. Hull, xi.vi, N. .L Exp. Sta., i . 8. I'teronus rilteaii Konow. Doutsoh. Ent. Zeit., xxxiv, p. 216. Xematus rentricosus Hopkins. Ann. K'ojit. W. Va. Kxp. Stu., p. 1.53. Xematus rihesii Cook. K'ept. Mich. Exp. Sta. 1890-91. Xematus ril)esii Elotohor. Hull. 11, Can. Cont. Farm (May). Xematua rcntricosus Carman. I'liil, 40, Ky. Agr. KiX)». Sta. (March). 1890. 1890. 1891. 1891. 1892. Fi'inale, — Length 7 to 7.i> iiiiii.; very robust, short bodit'd si>ecles; hejul rugose, ptmcturod, thortix U^ss so; with costa; upper cell of hind wings exceeding lower; third cubital cell scarcely at all divaricating apically; stigma not very robust, taperiiii: apically; sheath obtusely pointed, straight on upper edge, narrow: cerci as long as terminal joint of anteuuic, slender; head ans of posterior tibi.c and theii tarsi black; fore tarsi dusky; balance of thorax, venter of abdomen, and legs pale, ferruginous; the venter of abdonum more or less obscure with fuscous, sometimes very dark, approaching black ; veins and stigma, including costa to base, dark brown. Two females from New Hampshire (Coll. Am. l-lnt. Soc.) and one each from Illinois and Washington (Coll. U. S. Nat. Mus.). 30. Fteronus thoracicus Harrington. 1893. XvmatHs fhoruc'tcnn Harrington. Can. Ent.,xx«l', p. 58. 189.5. Xcmaiita thoracicus I'tyixr. Trans. Am. Ent. Soc, xxii, p. 307. Female. — Length mm.; robust; clypeus deeply notched, lobes nai row; walls of ocellar basin rounded, crest unbroken; antennal fovea shallow, circular; venation about normal; stigma broad, nmnded on lower margin; sheath rather short and robn.st, regularly rounded at tip; claws evenly but not deeply notched. Color reddish yeHow; an tenna', head except tip of clypeus and more or less of month parts, apical half (.sometimes all) of scntellum, metanotum, center of basal dorsal arcs of abdouuMi, and sheath black; ti|)s of hind tihiie and thi- hind tarsi usually infu.scated; veins, including stigma, brown; wiiig> hyaline. ilfo- pygium Hexed so as to appear strongly n«»tched at apex; claws minutely notched, rays subequal. Color of antenna', head above, frontal crest extending over occiput, mesonotum, metanotum, and abdomen except narrow lateral nuirgin black; fa<'e, nmuth parts, orbits, lateral dorsal margin of abdomen above, and entire venter light yellowish; posterior tibia', particularly at apex, and their tarsi strongly infuscated ; Hagelliim nifiais boiuMith; veins, including stigma and costa, the latter to base, dark brown. This well-nnirk«Hl species seems to be the «Mie <'haraeterized by Dyar (1. c), who also describes the eggs and larval stages. The eggs and larva' werefounil at VVoo— No. 3 5 1 i\ I ,!l ee t \ \ ii' and distinctly excavated ; lateral walls rounded; frontal crest stronglvl developed, divided by narrow depressed line at middle; antennal fovea deep; antennu' slender, strongly tapering. Joints 4 and ;"> subequal; venation normal; sheath narrow, tapering to rounded tip; claws deeply and evenly notched. Color of antennu', large si»ot including ocelli and extending over vertex, dorsum of thorax, and abdomen black ; posterioi tibne darker at tips, with tarsi brown; sheath brown; veins brown. stigma scarcely paler; face, orbits, pronotum, tegulic, entire venter,! with lateral edges of dorsum of abdonien, pallid or resinous. Male. — Length 5 mm.; slender; antenna' not much stouter than in female; procidentia short, narrow, projecting about its own width, Color as in fen)ale, except that the antenuic are fulvous beneath ami! the pectus is strongly infuscated. Eleven females and live males (Coll. Cornell Univ.), labeled "Lot SjJ sub. 90")," dated May to July, 1800. 33. Pteronus trilineatus Norton. 1867. yemaiiis triUueaiun Norton. Trans. Am. Ent. Soc, i, p. 215. (Cat., etc p. 77.) 1872. Xemalifi triHiieatiis Norton. Tnius. Am. Ent. Soc, iv, p. 71). 1877. Xcmatiia trilhimtun (ilover. Kept. V. S. Dopt. Agri«;., j*. J)2. 1880. Xvmutnn aimilarin Norton. Kept. Ent. II. IS. Dopt. Aj;Tic. 187!l, p. 224 I'l 111, lio 1. 1881. Xcmalitu trilhiealiin Thomas. lOtii Wfpt. Ent. 111., 1880, ji. (18. 1885. Xvmatiin robiiiiw Forbes. Utb Kept. State Ent. 111., 1881, p. IIG, PI. IJ, '■'«■ '", 1881!. XcmdfiiH nimihiriH Ilarrinjjton. Can. Ent., xviii, p. ',][). 1881). Xcmutm similurig I'rovanelicr. Add. Faun. Cau. Hyni., p. 21. 18i»0. Xanitliin mmilurin I'ackard. Kept. U. S. Ent Comni., v, j*. mi), (ig. I'M. 18'JO. Xematioi mhiiiin Packard. Kept. V. S. Ent. Conun., v, p. ;}70. 1895. XvmahiH HmHurii, Dyar. Trans. Am. Ent. Soc, xxii, p. 301 (larva). Fma/«'.— Length Iy dellned; aulenna' long, slender, tapering, third and fourth Joints ecpml or hit ter longest; venation normal; intercostal vein slightly inclined; third cubital lU'arly three times as long as wide at base; st'ignui moderately robust, widest at center; sheath narrow, snu.oth, tapering on both edges to rounded tip; eerci sleiuler, not tapering; rays of claws nearly e(iual. Color reddish yellow; antenna', sptft on head surnmndin- ocelli and extending over occiput, aiiteric.r and lateral lobes of mesn notum, small spot beiu'ath anteri(.r wings, metanotum (except meta scutellum, sutures, and lateral margin), abdim.en (except lateral nnirgiii ot segments and last segment), apical half of sheath, and posterior tJbia. and tarsi bnnvnish black; antenna' fidv^.us beneath toward tip.^: tips ol ant.'rior tarsi dusky; veins, including costa t(» base and stigmn, brown, latti'r darker basally. Twelve females from Canada, Massa.'liusetts, New V,)rk, Kansa>, 67 South Carolina, and Montana (Colls. Am. Ent. Soc. and U. S. Nat. Mua.), iind eight bred speciiuens, iiicliuling Norton's typo speeiinen of shnilariti (Coll. U. S. Nat. Mus.). Forbes's N.rohiniw, the type of which I have examined, is undoubtedly a light colored specimen of this species. It differs in lacking the black on the anterior lobe of the mesouotum and the small spot beneath the anterior wings. 31. Pteronus magus new species. Female. — Length 8 mm.; very robust, stout, shining; clypeus very broadly and shallowly notched, lobes small, pointed; ocellar basin distinctly defined, sides faintly raised; crest stout; fovea elongate, nither deeply excavated; antennae longer than head and thorax, slen- der, tapering, joints .'$, 4, and 5 subequal, fourth slightly longest; venation normal; stigma regularly rounded on lower margin; sheath broad, obtusely pointed, densely hairy at apex and on lower nuirgin ; claws large, deeply cleft, rays subequal. Color of spot on head includ- ing ocelli extending rather narrowly over vertex, large spot on anterior lobes of mesouotum, spot on apex of scutellum, metanotum, and abdo- men dorsally for the most part black; head except as noted, pronotum, entire venter, the lateral edge of abdomen dorsally, more or less of pos- terior margin of some of the middle segments, yellowish ferruginous; antennte black basally; tlagellum reddish, more or less infuscated, especially at base above; sheath brown; veins brown, stigma and costa lighter, yellowish brown. One female. Canada. (Coll. Am. Ent. Soc.) 35. Pteronus quercus new species. Female. — Length 4.5 mm.; \ery robust, shining; clypeus nearly trun- r.ite, vertex smooth; ocellar basin indistinctly deliued, sides rounded; frontal crest ))road, unbroken; fovea defined only on anterior nmrgin; antenna', not nuudi longer than head and thorax, slender, scarcely tai)ernig, third joint longest; intercostal interstitial, nearly at right angles to costa; venation otherwise normal; stigma very broad, ovate; apexof costa greatly thickened, half as broad asstignni; sheath robust, densely clothed with long, whitish hairs at apex and on lower nnirgin; cerci short; claws large, deeply cleft. Cut not deeply emarginale; ocellar basin with distinctly dellned walls; t I «i \ \ 68 u.'J ;♦• ' J ,.i ii' I iV h \ crest proiniiioiit, unbroken; fovea deeply excavated but not distinctly limited; antenna' very slender, tapering, Joint 4 a little longer than .'!; venation normal, except that the intercostal vein is nearly interstitial with basal; sheath narrow, tapering to rounded tip; claws coarsely but not very deeply not"hed, rays subt'cpial. Color of antenna-, large spot including ocelli extending over vertex, niesonotuni, nietanotuiu, and abdomen do'sally black; orbits, face beneath frontal crest, pronotuin. teguhc, lateral area of thorax, abdomen above, venter and legs alto gether yellowish or pallid; pectus brown; tips of posterior tibia*, tarsi and extreme edge of sheath brownish: stigma and costa hyaline; veins otherwise brown. One female, reared by ^Mr. II. G. Hyar from a solitary larva taken feeding on edge of leaf of white birch. The larva was described by Mr, Dyar under the name of Xcmatun lateralis Norton. (Trans. Aui. Ent. Soc. XXII, 1805, j). 307.) 37. Pteronus vertebratus Say. lS:>(i. Xematiis nrtcbratus ^^ily. Host. Jonvii, Nat. Hist., i, p. 218. IS,")!!. SiiiKtius rfrtchratita Lfcouto. Say, Kiit., ii, ]>. (578. ISiil. .V(;)i(i/i(,s nftihratiiH Norton. I'loc. lio.st. Soe. Nat. Iliat., viii, p. 158. IStiT. .\Vm((/(i.'< nrtt hratits Norton. Trans. Am, Ent. Soc, I, p, 215. (Cat., etc., p. 77. i ISSO. Stmtiiiis .iDifiiritUtlKx Cnsfoii. Trans. Am. Ent. Sot-., viil, p. 10. \S'X>. X-niatiis (hirKivittidni- l»yar. Trans. Am. Ent. i^oc, xx.i, p. 303. Fiiiialc. — Length «l mm.; rather robust, shining; clypeus distinctly but not very broadly emarginate, lobes numded; sides of oeellar basni distinctly, rather shari)ly raise7i). 1801. NenuituH integer Xortou. Proc Host. Sor. \at. Hist., viii, p. ir>S. 1867. Nematnsinteger^oriow. Trans. Am. Ent. Soc, i, p. 216. (Cat., «it('., p. 78.) 1888. Xemntns integer P.u-kiml. lvei)t. V. S. I'.nt., pp. 119-1.")0. 1800. Xemntns integer Packard. l{cpt. I'. S. Knt. C'onini.. v, pp. 8;W-81(). Female. — Length G to O.o mm.; robust, shining: dypeiis circularly cniarginate, lobes small, rounded; ocellar basin distinctly limited; frontal crest large, slightly broken at middle: antennal fovea expand- ing basally; antenna' very long, slen«ler, distinctly tapering; stigma not very bro.ad; venation normal; ed with Itrowii; body otherwise^ ])allid; veins, including costa, light yellowish Itrown; stigma yellowish hyaline. Two females. Colora«lo and New Jersey. (Coll. Am. Knt. Soc.) ■■i!>. Pteronus mendicus Walsh. 18(56. Xematnti niendirmi Walsh. Proi-. I'.nr. Soc. I'liilii., vi, j). 2til. 1807. XemalHS trii'iltatuH Xortou. Trans. Am. i'.nt. Soc. i. ]>. 218. (("at., etc, p. 80.) 1867. \eniatnH viindinisNorUm. Trans. Am. Knt. Soc. i, p. 220. (Cat., etc, p. 82. ) 1878. XeniatnH ntenitiruK I'rovant-lior. Nat. Can. \, p. 58. 1883. XemaliiH uiendicnH Provanclii'r. I'aiin. Knt. Can. llyni.. i>. l!tl. 18!r». XematnH wcndienii Dyar. Trans. Am. Knt. Soc, \\\\, p. :i(t2. Femalv.—Jjun^th 5 to (» mm.; not veiy robust, shining; clypeus bntadly but not deeply notched, lobes rounded; ocellar basin with dis- tinctly defined bnt rounded lateral walls; frontal crest lu'omlnent, ln'oken at middle, or strongly bituberciilate; antennal fovea broad, shallow; antoimie longer than head and thorax, very slender, capering, I i\ 70 I i 1^ ilV i joints 3 and 4 subequal; venation normal; stigma broad, regularly rounded on lower margin ; slieuth tapering-, straight or slightly concave on upper margin; cerci short, robust ; claws deeply cleft, rays unequal. Color very light yellowish; very narrow border of ocelli, small spot on occiput, sometimes line on anterior lobe of mesonotum, spot oh lateiiil lobes of mesonotum (sometimes subobsolete), apex of scutellum, s]>ot between ccnchri, brownish bla; sheath sometimes tii)i)ed with brown; veins light yellowisli brown; costa an mm.; slender, shining; structural characters in general of female; procidentia narrow, ])rqjecting, squarely truncate at a])ex, about as wide as long. ( -olor of antenna' nbove and basally. large 8i»ot on vertex including ocelli and extending over occiput and covering entire base of head, njesonotum, metanotum, and abdomen except lateral margins of segments black; ui)per orbits, venter, abdo men, and legs for the most part yellowish ferruginous; lower orbits and face below frontal crest and moutii ])art8 i)allid ; tibia' and tarsi, particu larly posterior pair, infuscjited ; lower surface of tlagellum rufous; veins brown; costa and stigma somewhat lighter, yellowish brown. Nine females, Illinois, Pennsylvania, and New York (Coll. Am. Knt. Soc), and from ^Missouri, Kansas, and Iowa (Coll. IJ. S. Nat. Mus.). Three males. Massachusetts an t(> 7 mm.; not very robust, shining: clypens broadly emarginate, lobes broad; anteniml basin with sharply raised defniing walls; crest i)rominent, bilobtid or bituberculate; fovea not distinctly delined ; antennjc slender, elongate, fourth joint a little longer than third; venation nornud; sheath Tiarrow, tapering, ])ointed; claws very minutely but evenly cleft. Cclor pallid, inclined to resinevada. ((Jolls. IT. S. Nat. Mus. and Am. Ent. Soe.) One male. Alameda, Cal., Mr. Koebele, collector. (Coll. L. S. Nat. Mus.) U. Pteronus koebelei new species. Female. — Length 5 mm. ; robust, shining; clypeus deeply emarginate, In])e8 broad, rounded; ocellar basin sharply defined; crest unbroken at middle, straight; antennal fovea very broad, extending laterally from base of antenna'; venation normal, except that the sides of the f hird cubital cell are i)arallel ; stigma broad, regularly rounded on lower margin; sheath regularly tapering on ui)per and lower margins to rounded apex, hairs very minute except at extreme apex, where a small tuft of longer hairs occurs; cerci long, slender, slightly tapering; claws and their tarsi, black; veins, iuclud ing stignui and costa, the latter nearly to base, dark brown. Many specimens. JMichigan, New York, and Long Island (Coll. U. S. Nat. Mus.), and Massachusetts and Canada (Coll. Am. Ent. Soc.) 45. Pteronus iridescens Cresson. 1880. Nemaius mdencens Cresson. Trans. Am. Eut. Soc, aim, p. 5. il/rt/c— Length 5 to G mm.; not very robust, shining; clypeus circu larly and rather deeply emarginate; ocellar basin large, lateral walls and frontal crest distinctly defined, the latter unbroken; antennal fovea very shallow, indistinct, elongate; antenna' robust, flattened, short, not much longer than head and thorax, tapering, joints 3 and 1 78 snbequal; procidentia narrow, trnncate, not projecting; claws not very (l.t'ply notched, rays subequal; intercostal vein at riglit angles to costa; third cubital cell elongate, scarcely divaricating; stigma not very broad, rounded on lower margin; venation otherwise normal. Color black; clypeus, labrum, i)ali)i, extreme angles of pronotiim, tegnla-, ai)i<'es of coxa-, tips of femora, including nearly all of anterior i)airs, iiiiterior tibia', and tarsi more or less light yeHowish; posteri(»r tibia' and tarsi infuscated, anterior tarsi indistinctly so; veins dark brown, iiHluding costa nearly to base: stigma brown, unicolorous. Two males, Cresson's ty])e specimens, from Nevada and one fi-om southern California. (Coll. Am. Ent. Soc.) Ml. Pteronus decoratus l^rovancher. 1HS8. \ematu8 decoratun Vrnvtiuvho.T. Add. raii.i. Ciui. IFyiii. . ji. 3fifl. Male. — Length 5.") mm. ; rather robust, shining; <'lypeus very broadly, ratlicr shallowly emarginate, lobes small, rounded; ridges about ocellar basin indistinct and rounded; vertex smooth, glistening; an teniuil fovea scarcely present; antenna; rather stout, taperitig, iu)t longer than head aiul thorax, joints 3 to 5 sube(iual; procidentia minute, scarcely pnjject- iiig; venation normal; stigma not very broad; ai)ex of costa greatly enlarged, almost as large as stigma; claws deeply cleft, inner ray par- allel with outer. Color black, shining; orbits, face below antejina*, jnonotum, teguhe, and legs for the most part i)allid; fenuna e\(!oi)t line on under side, apices of hind tibia' togcither with low«'r edges of same, and the hind tarsi brown; hind coxa; brown, extched, rays subequal. Color black; clypeus, labrum, palpi, teguhe, and legs from trochanters outward except posterior tibia? and tarsi yellowish ferru- ginous; posterior tibite, except bases, and their tarsi strongly infus- cated; veins and stigma dark brown; wings very faintly infuscated, almost hyaline. 74 m it" Three malea, one from Lansiiifj, Mich., hibeled " Lombanly po]>lai ; and two apccinuMis bred from larvii' on willow by Mr. Dyar (Coll. I'. S. Nat. Mu8.). Mr. Dyar, for whom I determined as above some bred males, thinks this may jnove a seasonal form of rentralis (Trans. Am. Ent. Soc.. xxiT, ^H\)ii, ]). .SO.")). Mr. Dyar's specimens were obtained in New York on Sali.r, and, tofjether with the types, present what seem t<» hv jiood specific diilerences from rentralis. 48. PteronuB dubius new species. Jilale. — Length r>..5 mm.; clypeus broadly emarginate, almost tniii cate; frontal crest very large, strongly angled anteriorly, lateral walls of basin tapering rapidly posteriorly ; antennal fovea narrow, breakiiifr slightly throngh crest; antenna; robust, llattened, joints 4 and ."> a little longer than -T; venation about normal; second recurrent interstitial tti nearly so in fore wings and the outer veins of discal ('ells interstitial in hind wings; stigma rather narrow, rounded on lower margin; pro cidentia short, not very broad, apex rounded; claws dee]»ly divided, rays snbequal. Color black, shining; clypena and othei- mouth parts and extending to eyes whitish; narrow lino on venter of abdomen, incbuling all of hypopyginm and the legs, ferruginous yeHow; bases of coxM' black: wings hyaline; veins and stigma brown. One male. AVclIesley, Mass., March 20. (Coll. V. S. Nat. ^lus.) 40. Fteronus stigmatns Norton. ISOI. XcmaUtH stiiimatiis (HurriH) Xctrton. Proc. Host. 8oc. Nat. Hist., viii, p. lf!l. IHCtT. Xematu.inligmaluH'SorUm. TraiiH. Am. Ent. Soc, i. p. 221. (Cat., etc., ]). 8:!.! Ftmalc. — Color grconlsh luteoii.s; body short and stout; autonn.i' moderate, llu' two basal Joints black; a sniall black spot about each of ocelli; clypeus har^l. Crest broken ; mesonotmn with three hlack stripes. 15. dismlor Vr Crest sliglitly or not at all broken ; lucsouotum juile (ir with n sin^k narrow stripe !<>• linvaluf. Ila:, Antenna' nuxleratcly robnst, strongly tapering; sheath strongly tapeiiii;- toward tip, latter obtusely poinfcl. Ant«rior lobes, njos«)notnni, and tip of scutel Idack. Stigma and costa dark brown 17. chnlcemn.'<\i. Stigma and eosta yellow !><• roiiiiillrtli n. -p. Anterior lobes, etc., pale 1!>. hnniHviiH Nmi Antenna' moderately robnst, strongly ta])ering; sheatli as above, l.iii sliaridy i)rodut'od at tip ; elypens deeply emarginate. 20. exeat ahiH n. s|, Antenna- long and slender, Hotaeeons 21. califoniiciin n.sp. •J. Amauron< INDKX TO SI'Et'IES OK AMAntONEMATUS. boreal is Marlatt, < V 1. AmauronematuB luteipes (vai:tin{.!:; antenna' short, not mni!i hni^cr than head ami thora.x, rather sh>n subeipial; intereoslal vein nearly inter8titial with basal; tii.rd e.iibltal <'ell scarcely lonjieron upper margin than wide at ba.se; discal cells of hind winjjs with outer veiiiH interstit lal or nearly so; sheath iiarrow,obli<|uelytiiinca(e at apex; inner ray of i(Mil nuirt'si of scj-finei is «>f abdomen, particularly vent rally, yellowish f'iivoiis; sheath anil e<»rci i'nlvons; veins, iiicludiii>r sti^^na and eosiii. brown: wiiiji[s sli|;liti.' infuscat«'d. OnetVniale. Nevada, ((^(dl. Am. I' .Hoc.) lu tlij stnu'turc of the claw, this species divorpea somewhat from tin' {fenu.s to which it is now assinned ind I'.pproaehes the Htructure occur- ring" in l^h'hjincmatuN. In general characterB, however, it falla umlcr Amauronematm. n 77 ^Jor Cr I -J. Amanronematas concolor N(M't(»ii. isiii},'!,.' |« Har, lipciill;' Win I), ^l), yi n. -ji I"* Xnll II 1H«)7 AVi»«ii/w«. Amauronematus conutocki new species. rnnah. — lieti^lli !• mill.: rather elon;rnte, slender; clypeus vi'iy shal- low ly «>mar;;inate: walls of oei'llar basin rounded, indistinct, frontal nest almost wantin;;: antennal fovea shallow, eloii;;'ate; antenna* short, joints .'( to ii sube«|ual. fourth lono;est; wiii^ venation normal, stigma -er broadly and sballowly emarginate, lobes triangular; walls of ocellar basin dis tinctly defined; crest narrow, not extending laterally, slightly brok.n by deeply excavated, elongate antennal fovea; fourth joint of antennn longer than third; upper discal cell of hind wings very ehmgate ;iiitl considerably exceeding lower; sheath somewhat elongate, rounded at ai»ex; cerci very long and liliform. Color dull brownish black; tii angle between bases of antenna', orbits and oral legion, angles of pio notiini, more or less ot apical ventral segments, joints of legs, inrlnd ing most of the anterior tibia', yellowish; stigma and wing veins dark brown; wings slightly infuscated; labium and palpi brown. Two females. Ithaca, N. Y., May 8, and Natick, Mass., April I'.t. (Coll. Cornell Univ.) "). Amauronematus rapax Cresson. 1?<80. XcmnliiH nipaj' Cressoii. Trans. Am. Kiit. Soc, viit. p. 4, M subequal, fourth and fifth slig!.;!. longer than third; venation normal; stignut broadest nom- base, tapii ing nniforndy to attenuated apex; procidentia small, .-.trongly k^'i'ltd. truncate; hypopygium narrow at tii>, slightly onmrginate; outer ray <•! claw distinctly longer than inner Color black, with hoary pubesi-ciin-. l>articularly on thorax ami legs; tips of femora, tibia', and two antcriur pairs of tarsi, fulvous; outer orbits tinged with rufous; wings distinctly but not strongly infuscated. One male. Nevada. (Ccdl. Am. Knt. Hoc.) (>. Amauronematus rufipes new s])ecies. M((h'. — hength \) nun.; very sleiuler, elongate; clyptuis very broadly cnjiirginatc; ocellar basin distinctly defined but not deeply excavaltd: frontal crest not strongly developed, fovea triangidar; antenna' viiy long and slender, fonrtii joint longest, nearly a third longer tlian thinl joint; first cubital cross vein wanting; stigma very elongate, nan nw. acuminate; nppi'i cell of lower wings exceeding lower by one-third its length; procidentia short, more than twice as broad as long, trmicatr; claws coarsely notched. iUtUu- black, shining^ basal joint of inaxillaiy palpi, all of legs except apical half of posterior tibia', rechlish; tarsi inclined to yellowish, imne or less infuscatetl, particularly po.ster "i pair; wings hyaline; veins dark brown; costa, including teguhe, somi- what paler. One male. Indiana. (Coll. Cornell Cniv.) I' ll 79 7. Amauronematus cooki new speciies. .!/(»/<. —liGiifftli .-) nun.; rlypens nKuU'iatdy iunl rather inurowly i'iii:iij;inate, lobes small, lounded; frontal crest not extending at all laterally, slijflitly bioken by tlic shallow antennal fovea: sides of pen- ta,::<*iial area nninded, inditstinet; farrows rnnninj; from occiput to base of ;iutenna'wide and deep; antenna' hinjjer than head and thorax, Jctints 1 :iniilt's of ocellar basin indistinct; antennal fovea elongate; aiitennie rather stout, llattened, joints I and ."» with downward <'Uive, fourth Joint luiigcst; thinl subnuirginal cell very narrow at base, not much more than one-third as wiygium nairow, rouiuled at tip; claws deeply tictt, rays subequal. (J(»lor black; labium, tip of alxlonHMi, tips of r. I. I'lintih: — licngth (».."» mm.: exp. al. Hiiinn.; very robust; clypeus very -li;;litly cnnirginate. alnutst lrun<'at«'; fnmlal crest and sides of ocellar Imshi indistinct, antennal fovea shallow, not distinctly delinod, eh>n uale; antenna- short, hardly as long iis head and thorax, third to lifth •ihtssuluMpml; interei>stal «*rossv(!iii verym-ar basal, stron};ly inclined; \taali(»u otherwis*' normal: stignm broadesi at base; sheath rather l:iri;e, nniiulcd on both sidt^s toward the obtuse tip, which bears a dense -((»pa; cerci slender, medium, scarcely tapering, ('olor in general i'liick; entire body, particularly the thorax, \>illi a tine sericeiis |»ile; 'i|»i>er ami (Uiter orbits, edge of angles of pronotnm, bolder of tegiihc, pot below eyes, tip of clyp»'us and the labrum, trochanl»'rs, tips of li ^' li : t ,M ,4 i ,■ .» ■ ' i I '1 ); iV ly i\ i\ I «0 coxii', tips of femora, tibiii' except extreme tips, yellowish ; tips of til»iii . especiiilly posterior psiir, tarsi, and palpi iiifii«;.ated; wingc hyaline; veins, includinj? stigma and eosta, brown. One female. Nevada. (Coll. Am. Knt. Soc.) 10. Amauronematus orbitalis new si^eeies. /.V»<,j/r._Iien};th 7 mmi\.; exp. al. l."» mm.; raHier slender; head iind tliorax linely pnn*'tnn'd but more or less saining; abdomen moic so; imbesreiH-e very minute; clypeus eircularly, broadly, and rather decjily emarginate, U>bes triangular, sharply pointed; frontal erest sl»2:litl,v broken: sitle walls of ocellar Itasin not very distinct; antennal fovea very minute, <'ii'eular; antenuie very short, not nearly so long as Im iid and thorax, tiiinl to liflh joinfs sube(pial; intercostal cross vein iidt half its length anterior to basal; thinl cubital <'ell iu»t twice as long as \\u\v at base, nearly quadrate; euter .. -nsof discal cells of hind winus interstitial, or neariy so; venation otherwise normal; stigma narmw. tapering; sheath large, upper edge straight; eerci very h)ng, slen«h'r, scarcely tajtering. Color black; u])|>er and out«M- orbits very broaeus very slightly, circularly emaiul- nate; frontal ciest large ami broken; ocellar basin not very distinill,\ delined; antennal fovea distinct, (Mreular; antenna' very slenilci, scarcely tapering, Ibnrth Joint long(;sl ; venation normal; stignui narrow, acuiiiinate: sheath nanow, rounde«!; eerci slender, long, not tap<'rinn; (laws deeply cleft, rays siibequal. Color black; triangle beneath antni na', orbits Inoadly except narrowly (Ui innvr side, cheeks, clypciis. labruiii, liases of mamliitlcs, palpi, angles . 1 |H. '■\n>ale. — Lenj;tli nun.; exp. iil. 1-4 mm.; ;i slioit, robust species; tlypens shsillowly, rather broiully eiuiirj-inate, lobc^s short, l)roinl; IVon- tiil erest short, stronjily laised.and scarcely broken; sides of ocelhir Itiisiii indistinct (►r wanting; antcnnal ioVv-a small, shallow, circular; antenna; tninlium, third, fonrUi, and (Ifth Joints sube(|ual; intercostal (loss vein v(uy little anterior to basal, iiid oblicpu': venation normal; .stijiina broad nearba.se, taperinj;' regularly to a|)e\; sheath very broad, (»l)li(|uely truncate, upper angle obtusely jjointed; cerci minute, very slender. Spot including ocelli and extending to ba.se of antenna', cen- ter of lobes of niesoiiotum, ai)ical half of scutellum, metanotum, the alidoinen dorsally, sheath, lower half of mesepimera, blacU; frontal ciest, head below antenna', orbits, pronotum, legs, and venter of abdo- men pallid luteous; sutures of mesonotum, upp«u' half of meseitimera, luteous, inclining to reddish; veins yellowish brown; stigma somewhat li;;liter, particularly at base; tarsi and posterior tibia', labium, and palpi very slightly infus. FvmnU'. — Length (».r» mm.: exp. al. l."» mm.; clypeus broadly emargi- Hiife, lobes small, triangular, frontal i'rest large, not distinctly delined, iMibroken; antennal fovej„ minute, circular, shallow; antenna' sluut, s!cn«ler, tapc'ing, fourth Joint slightly hmger than third; intercostal anterior to ba.sal vein; thinl cubital cell three tinu's as long as wide at liasc; venation otherwise nornnil; stigma not very robust, widest at mid l coxa- picens; prothorax beiu'ath. labium, and palpi Inscous; til>ia' ami tarsi .somewhat infuscated; head and thorax except as noted, alMhunen l»'ncatli, ami legs yellowish ferruginous, inclincil to leddish on head and sutures of thorax ami mcscpinu'ra; veins light yellowish brown; stigma ami costa st»m<'wh;it bghter. laill)— .No. J \l t ) i ; .. I' III II 1:1/ I t !': 'W' ir 1 JlAx In some specimens the mesepimera .are entirely reddisli or only slifihtly infuscated on tlieir lower portion; also part of the face and biise of winj^s are inclined to whitish. Four females. Colorado and Nevada. (Coll. Am. Ent. Soc.) This species scarcely dift'crs from A./ulvipea Norton. 14. Amauronematus luteotergum Norton. 1861. 2sematiiH InUotenjam Norton. Proc. HoHt. Hoc. Nat. Hist., viii, p. 161. 1867. NematuH luteotergum Norton. Tmii8. Am. Eut. 8oc., i, p. 206. (Cat., etc., p. 68.) 1882. Krmalus hiteotcnjum Provanchor. Nat. Can., xii, p. 201. 188;}. XcmatiiH luteotergum Provauchwr, Faiiu. Knt. Can. Ilym., ii, p. 710. 18!*5. Sematus luteotergum Dyar. Trans. Am. Ent. Hoc. xxii, j>. 301. Female. — Length 8.5 mm.; cxp. al. 10 mm.; very robu.st; head juk' thorax opmpie, abdomen shiiiin};, the former covered with a very minute hairy pubescence; clypeus somewhat broadly emarginate, lobes sniiill, rcmnded; frontal crest and sides of ocellar basni indistinct; anteniiiil fovea eh)ngate, shallow; antenna' as long as head and thorax, fouitli joint longer than third; intcrctstal cross nerve its own length anterior to ba.sal nerve, strongly inclinegment ot abdomen, sheath, legs, (rerci, labium, and palpi black; front face of two anterior pairs of femora and tibne, paler; terminal joints of antenna' rarely, spot beneath basts of ant"nna', clypeus, labrum, bases of mandi- bles, more or less <^*' u[>i)er and outer orbits, angles of pronotum, sp<>t on lateral hall" of basal plates, and abdomen except as noted yellowish ferruginous; veins ami stigma, including costa and teguhe, dark brown; anterior wings jiartit-ularly infuscated, and with a ndnute dot near the center of the .second cubital cell, also one near the apex of the median cell. Three females. Massachu.setts. (Coll. Am. Ent. Soc.) I have also compared hve specinums (females), representing VVellesley and Nalick. Mas.s., and Ithaca, N. V. (Coll. Cornell Univ.) Mr. II. (}. Dyar articu- arly the posterior pair, fuscous; veins, including stignm, costa, and U'hiiIm'. yellowish bnnvn ; a minute dot occurs at the apex of the median I cell and near the center of the second cubital cell; anterior wings, par- ticularly, slightly infuscated. Tiiree females. Coloiado. (Coll. Am. Knt. Soc.) A fenuile collected on willow blossoms at Olympia, Wash. (Coll. Cor- iit'll Univ.), ditlers from the above in being in general lighter colored, I 111' dark markings being generally present but somewhat more restricted. iTlie wing veins and ])articularly the stigma are lighter, and the mes- ('pniicra lack the pectoral dark spot. l)i. Amauronematus lineatus Harrington. lMt;{. XematUK lineulitu ilurriiigtoii. Can. Kut., xxv, p. ">!). lumalr. — Length 7..") mm.; robust, abdonuM.' tapering from near base quite strongly toward apex; clypeus distinctly emarginate, lobes tri- aii;;ular; lateral walls of ocellar basin indistinct; frontal crest large, sliai|»ly delined, slightly or not at all broken; fovea triangnlar; antenna- not so long as lu'ad and thorax, tapering, joints .'J to 5 snbe(|ual; vena- tiitii nornnU; stigma elongate, widest at base, tapering regularly to ii|i('\'; sheath long, narrow, regularly and e(|ually rounded on boih margins to obtuse ai)ex; cerci rather long, slender, scarcely tapering; (•laws large, deei>ly clel't, rays siibe(|iial. ('ol()r yellowish feniiginons; Vertex and nies(»notum iiu'lined to leddish ov with a purplish tinges; antenna' exci'pt on scape beneath, narrow lim^ sonu'tinu's wanting on anterior lob«; of mesonotum, apex of mesoscntellum, nu'tanotnm for most piirl, and the dorsal abdomiinil segments centrally, narrowing poste- imrly, black; extreme upi)er atid outer margin of sheath biown; extreme tips of posteriin- tibia- and their tarsi very slightly inluscated; \tins light yellowish brown; stigma and costa somewhat lightered I'lwish. Uedescribed from the typo of this species loaned by Mr. Ilarring- '"II, and two Hueciinens — one collected in Maine (Coll. Am. lOnt. Soc.) I ! •'I) It ■ ; i; n li .., 1 % \ M I 84 and the tither in New York (Coll. IT. S. Nat. Miis.). hi the former tin- abdomen is very narrowly black centrally, and only on three or lour basal seifuients. A I'eniale (Coll. U. S. Nat. Mus.) taken June 2(), at Ga^lnrd, Colo., is also provisionally placed with this spe<-ies. It a^roos in coloration with the Maine s[»ecinien, and also in structure, except that the sheath of the ovijjositor is broadened basally. 17. A' auronematus chalceus ui'W species. Fi-mah: — Lenjjth 10 nun.; laryv, rather robust; clypeus deeply aiid broadly eniarj'inate, h)bes large, rounded; ocellar basin distinctly delined : frontal crest proniinent, not or but slightly broken, extending; in an indistinct ridge to the orbits; antennal fovea large, triangular, rat lici deeply excavated; antenuic distinctly tapering, third and fourth Joints very much h)nger than lifth, third longest; third subnnirginal cell elongate, sides parallel; upper discal cell of hind wings considerably exceeding lower; sheath broad, tai»ering, slightly constricted before apex, with distinct scopa at tip; cerci short, slightly constricted at base; claws deeply and evenly notched. Color reddish yellow or resinou.s: antenna' with circle about base extending downward to clypeus, ante rior and lateral lobes of niesonotuni, apex of scutellum, metascutiiiii. more or less of center of basal i)lates, ]>r(»thora\ beneath, and lower iiall of niesepiniera brownish black; oeellar regi(m, posterior tarsi, and ti|i of sheath nion^ or less infusi-ated; wings slightly infuscated, especially between stigma and i)osterior border; veins and stigma dark brown, almost black. Tw«) feuuiles. Olyuipia, Wash. T. Kincaid, collector. (Coll. (,'oriicll Univ.) 18. Amauronematus coquilletti new species. Fcnuih', — licngth S mm.; robust; clypeus broadly, rather deejily notched, lobi-s large, rounded; ocellar basin distinctly coarsely and evenly notched. Color I'esinous yellow, 'ih'MiumI to red dish; antenna', small spot in(!ludiiig ocelli with braneh.*s running down toward bases of antenna', stripe on each of antdio" lobes of meso notum, laetanotum for the most part, ventral sclerites of prothorax, anw spe(;ies. Vemnh'. — Length 7 mm.; robust; clypeus deeply and circularly (Miiarginate, lobes narrow, rounded at tip; walls of (XH'llar basin dis- tinctly defined; frontal crest deeply broken by the backward prolonga- tiim of the large oval antenmii fovea; antenna' short, fourth Joiitt longest; venation normal; stignui rather broad, circular on lower margin, widest at middle; sheath acuminate, rather pointed at tip; ('er<'i short, inconspicuous. Color resinous, darken on thorax and vortex; oeellar basin and line connecting posterior ocelli black; veins light yellowish brown; stigma and eosta lighter yellowish. One female, without lorality label. (Coll, Am. Knt. Soc.) This sprt'ics seems to be somewhat internicdiate between the genus to which it is n(»w assigned and Ptironm. '1\. Amauronematus califomicus new species. l'\mnU'. — Length (! mm.; rather robust, shining; clyi)eus distinctly, I irciilarly notched, lobes rounded; frontal crest broad, stout, unbroken; (ifcllar basin with roumlcd, indistinct latenil walls; lbv«'a indistinctly (lelined, cxrending laterally over bases of antenna'; iinteiina' very slen- der, (^huigate, tiliform, third Joint longest; venation normal; stigma t'longate, narrow; sheath narrow, squarely tnineate at lip; thnvs (evenly hut not very deeply <'h'tt. Color light resinous ycll(>w; anteiinii' brown aliove; basal Joints darker; <»eelli with very narrow black b«u(ler; two l>laek spots Just back of nu'soscutellum; veins light brown; stigma ami <'osta light yellowish. Two females. Los Angeles, Cal. I). \V.C«)quillett, collecttu-. (Coll. n. S. Nat. MuH.) \ I I ! 1 1 1 1 t 11 > 1 ' .1 .» ' iii ■' J ii se X. Oenus CR(ESnS Leach. Crrraus Loach. Zool. Misc.. ill, 1817. p. 129. The (liaiacter.s di.'^tinguisliing thi.s genua are indicated in the tiiblu of genera. Jt is closely allieens, and claws. The original des(ii|) tions of the two American representatives arc rexiroduced without change. Croesus latitarsus Norton. lS(i2. Crnsiis latHarsimyionnn. Proc. Knt. Soc. rhilii., I, p. 199. 1S(!7. CnisHS latifantiin'Sortou. Trans. Am. Ent. S«)c. i, p. 84. (Cat., etc., p. r>l.) 18X1. Cmmis liifitarxiiK I'lickanl. Hull. 7, 1'. S. Knt. Coniin., pp. 129, 184. 1882. Ciursim ItililaisiiH Vro\;x\iv\wr. Nat. Can., xiil, p. 291. 1883. Cnr8ii» hitilarsnii Provanclior. Fann. I'nt. Can. Ilym., p. 740. 188;'). Crusiis I il|ii j»ii'eons; nicsothoiaxwith <'<)nlliient lonjjitiulinal i)iin"tures; legs black, the anti ii"r jiair jticcoiis toward tip; posterior trochanters and basal half of all the tibiae vlnti; posterior til>i;r cnlaigod and very nmch llattened toward the tip; tirst joint of liirsi still. wider, eonijiressed, longer than remaining four joints together, its edges elo- vated to a rim on both sides; wings hyaline, a little smoky below stigma; a dot in middle of botli second anil third siibmarginal «ells. Massachnsetts (Harris's Coll.), I'enn.sylvania (Coll. Am. Ent. Soc.). (Smithsonian Institution). (Three females. ) t/iiiti' rare. Wild cherry Augnst 16. Bred by Mr. Walsh from larva- feeding on birch. Croesus laticulus Nort(>n. isillt. CnrxuHldliciiliin'Soiiou. 'i'rans. Am.Knt.Soc. ii.]>. .'{68. (Cat., etc.. jt. J:".'.; 18!>l. S'ematuii (CmHitx) hitimhin Dalla Torre. Cat. Ilym.. I, p. 232. /V»i«/c.— Length (». 18 inch; black; te>,'nla', a spot on sides of basal plates and art of the first tarsal joint blackish; antenna- very hmg (0.36 inch), IMAGE EVALUATION TEST TARGET (MT-3) // k 1.0 mo 1 I.I IM 1.25 II 1.4 1 1.6 vQ vQ / 7 Photographic Sciences Corporation «^ V <^ ^ ^ >* ^\ 23 WIST MAIN STRUT WHSTIR.N.Y. MSSO ;i6) 873.4S0a * #. I'll! h <' 1'^ I'' II \'- I !|< 88 skeletoni^^ing tliein at lirst and in their later stages eating entirely througli. Mr. 11. (1. Dyar has described the larva o( nnicolor n. sp. (Trans. Am. Ent. Soc, XXII, p. 308), the food-plant being white birch, but in food- iug habits agreeing with the Euroi)ean species. TABLK OK SI'ECIKS. Females. Last dorsal iirc of abdomen cnonnonsly developed. Claws Itilid. Wiiij^s slijjlitly liifnscated baaally; stigma brown basally; dorsnm pale, 1. vnieolor ii. sp. Wings dear; stigma pale; metauotuui and abdomen above black. 2. mexicatius Cameron. Claws with minute inner tooth 3. pontanioidca n. sp. Last dorsal iirc not unusually osterior wings with outer veins of discal cells intersti tial, or nearly so; stigma moderately elongate; sheath tapering, pointed, and with terminal abdominal segment enormously developed, reprc senting nearly half of abdomen ; cerci very long, slender, almost as loni: as first joint of hind tarsi; claws rather large, inner ray very distindly shorter than outer. Color uniforndy reddish yellow; wing veins and siignui yellowish brown; antenna' infuscated basally; ocelli very nar rowly margliuMl with black; basai jdates more or less infuscated; Avings hyaline, veins brown, stigma and costa yellow, former brown basally. Three females, one from Mount Mood, Oreg. (Coll. Am. Knt. Soe.), and t\v(» reared by INlr. 11. (i. Dyar from larvu^ on white birch collected in llreen Valley, Ncw'Vork (Coll. Dyar). 2. Nematus mexicanus (Jameron. 18HI. NeitKtliin mcriciuiiiH Ciimeron, 'rnins. London Knt, Soe., p. ISl. /'Vm«/c.— Tiivld. lestiKreous; face, sides and apex of al>domen above, and leg- obscure livid yellow; antenna-, nietanotum, ami Itack of abdomen except at apex, npex of hind tibia', and tarsi IdacU; ant»Mior tibia' inidining to I'nscous; wings olear hyaline; eosta and sligina whitish yellow; antenna' Hhorter than the abdo men. alu center; wide; cl luledoulu third eel tie ii. fn thorax above; c sheath a The vert latter is a narrow licngtl Closel can X. est, this llahiU 'ntircly "!«•"' iil'»ost glabrous, third .joint a little shorter than fourth; vortex raised in renter; Irontal area a deep wide depression; antoniial fovea largo, louf^er than wide; clypeiis deeply ineised; palpi fuscous; Avings lougisli ; se.oiul ciiliital eel- hile double the length of third, notaugled where the reenrrentncrx urosaro received; tiiird cellule a little widened at apex; the second recurrent lu-rviuo received a lit- tle ii. front of third transverse cubital; abdomen larger than the head and the th(uax together, narrowed toward the apex, its last segment largely develo->od above; eorei long; ovipositor long, nearly }ialf the length of ti!(> alidomcu; the sheath at apex pilosi;; blotch small ; cerci large, white; claws hi lid, spurs shortish. Tiui vertex and nuisonotum are very linely ])i:nctured; on the middle lobe of the latter is a central furrow; the extreme iipox of the scutelluni is black, and there is a narrow obscure bla<'k line down its center. liongth 7 mm. Closely allied to tho Kuropean X. ho-moiThoidalis Spin, and fo the \ortli Amen- can N. c/(/o)rH,s Norton. The occurrence of a Srmiiiiin ntt far south is of much inter- est, this being tho (irst record of that northern genus in Central Ameiica. IlahUal : Northern Sonora, Mexico (Morrison). Tlio ty\H', of this species Wiis not procurable and the <)ri«>iniil descrip- tion is quoted without alteration. 3. Nematus pontanioides new species. Female. — Length 5 mm,; rather robust; clypeus very deeply and circularl}^ emargiiiate, lobes rounded; walls about ocellar basin and the Irontal (Test rounded, indistinct; vertex smooth, shininji'; antennal fovea broad, shallow; antenna; not lonj>er than head and thorax, slender, hliform, joints 3, 4, and 5 subequal; second recurrent received near second cubital; third cubital cell very elongate, three times as lopj; as wide, narrow; stigma broad; sheath large, tapering, sharply aciiminate, occupying with overlapping terminal dwm/('.— Length 5 to 5.5 mm. ; very robust; head an 1 thorax finely punctured, opaque; clypeus nearly truncate; vertex smooth; lateral ridges of ocellar basin not very prominent, rounded ; basin very shallow and indistiiKit; crest rather large, rounded; antennal fovea very shal- low, indistinct; antenme short, not as long as head and thorax, slender, tapering, third joint very little longer than fourth; stigma broad basally, tapering regularly nearly to ajiex; apex of costa very greatly thickened; sheath thick, short, scarcely projecting, margined with long, not very numerous curved hairs; (lerci rather long, slender; claws large, deeply notched. Color yellowish ferruginous; mesonotum, mes- epiniera, margin of abdomen dorsally, and sheath somewhat inclined to reddish; antenna', spot on either side of mesoscutellum, apex of same and metanotum ex(;ept metascutum, basal plates and central area of abdomen above, black; antenme lighter beneath, especially toward apex; veins brown, stigma and costa yellowish. Two females froiu Texas, one Norton's type (Colls. U. S. Nat. Mus. and Am. Knt. Soc.) In general characteristics this s])ecies comes very near Ncmatm per- ijandei n. sp., but it is less than one-half the size of the latter, and dill'ers in other details. I I'l 1 1 I 91 I 83.) XIII. Genus PACHYNEMATUS Konow. Pachj/nematus Konow. Deutsche Entora. Zeits., xxxiv, 1890, p. 238. Body short, rather stout; clypeus emarginate "t apex; iuuer tooth of chiw jfen- e:aUy minute and at right anghis to outer; antenna' of the male long, more or less compressed; female shorter, subsetaceous, usually hlack ; pentagonal area of vertex distinct; eighth dorsal segment of the m.xlo, broad, wide at tip; liypopygium sub- triangular, produced at apex; sheath of female short, stout. — Konow. This genus is characterized chiefly by the sliort inner tooth of chiw projecting nearly at right angles with the claw and the emarginate clypeus, together with the distinctly developed ridges to the ocellar basin (pentagonal area). Its American representatives maybe reaaily divided into three well-marked grou|)S. The first is the smaller of the three groups and Is characterized by the large, greatly projecting, and rounded, flattened sheath of the fenuile. The rest of the si)ecies are separated into two well-marked groups by the characters of the head and antennae. In one the head is very strongly developed and widens notably back of the comi)ound eyes, particularly in the case of the females, and with the males the antenn.e are very long, cylindrical, and not at all or scarcely compressed. In the other group the head nar- rows in both sexes back of the compound eyes, and the antenna' in the males are comparatively short, usually robust, and very strongly com- pressed. The first of these latter subdivisions, or the second group of si)ecies, has a ty[)ical representative in the wheat and grass sawfly [Vachynematus cvtensicornis Norton), the habits of which are described and illustrated in Insect Life, IV, pp. 174-177, fig. 11. The species was then referred to marylandicu.% but it now appears that Norton's earlier description of extenskornis was of ^^le male of this species. The close similarity of the species in this group in structural chara(!ters suggests a like similarity in habits, and we may therefore expect most of them to be grass feeders. They rei>resent all sections of tlie country, from Maine to California. The third group api)ror.ches very closely in char- acters the following genus {Lj/ffcconematus) in that the clypeus is often only slightly emarginate, and the separation and reference is therefore not entirely satisfactory in all cases. TABLK OK snCCIKS. Females. I. Shoath very large, projecting free at least one-half its length, not or scarcely taper- ing, rounded at apex. Second recurrent usually interstitial; prevailing color black or dark brown. Lobes of clypeus triangular; clypous ami labrum very hairy; venter infiis- j-nted 1- dimmorlii Crcsson. Lobes broad, rounded; (dypeus and labrum nearly snu)oih ; venter jiallid. 12. runtlix ("rcsson. Second recurrent not interstitial; itrevailiug ecdors yellow or rcainouH. 3. ocrealiin Harrington. vm 'it 11 92 f Vc > ' « J n ll II. Sheath normal, but slightly projecting; tip usually obliquely truncate or taper- ing ; head strongly developed and widening back of compound eyes ; second recur- rent vein usually interstitial; rather robust species; stigma and coata usually hyaline. ^\^^\ fr ,x Metanotura moreorless yellow; iiflrgmfi yellow 4. aurc diacm n. sp. Metanotum and terguni black. Head (except usually a spot about ocelli) and more or less of mesonotmn pale. Mesonotnm pale or with two or tiiree black spots; body beneath pale exce]»t rarely blaiik spot on ])ectus and infuscatod bases of fonior.i. Stigma and costa pale; wings liyaline. Sheath broad, obliquely truncate; largo species. 5. extcHHicormH Norton. Sheath rather narrow, tapering regularly 6. affitm n. s)i. Stigma and costa pale ; wings infuscatod 7. siiadus Crestsoii. Stigma and costa dark brown 8. aiiratua n. s]i. Mesonotnm mostly black, with one or two pale spots, or sutures pale; mesei)imera black, except sometimes lateral light spot; venter more 0/ less infuscated ; femora and coxa? black basally. Mesepimera black 9. tjraminiH n. sp. Mesepimera with lateral white spot 10. pleiirieiis Norton. Head black; orbits black or strongly infuscated; thorax and abdomen black except "sometimes central area of venter. Stigma and costa pale. Head and thortix with long, dense pubesconso; stigma narrow, acuminate ; reddish 8]»ot on mesepimera 11. puhescens n. sj). Head and thorax not unusually pubescent; stigma robust; mes- epimera black. Femora and venter mostly pale ; largo, robust species. 12. moniiragua n. sp. Femora and v.^nter black ; small species. 13. coloradenaia u. sp. Stigma brown or black. ]>abrum, angles of pronotum, and teguLT pale. Clypeus black ; bases of femora infuscated. . 14. rohustus u. sp. Clypeus with pale tips ; femora pale 1."). clypeatua n, sp. Labrum, angles of pronotum, and teguhe black. 16. aicr McGillivray. III. Sheath as above ; head narrowing more or loss back of compound eyes; usually slender, elongate, black si)ocios, with brown costa and stigma. Sheath narrow, regularly rounded at tip; stigma acuminate; venter pale; pectus black 17. nUjropectm Crosson. Sheath moderately robust, more or less obluiuoly truncate, tip obtusely pointed; stiguui broad, not acuminate. Torgum reddish yellow; head coarsely, rugosely punctured. 18. puncMntua ii. sp. Terguiu lilactk, except lateral rufous spot on segments 2 to 5. 19. abdominaUa n. sp. Tergum black. Femoiapalo 20. hoodi n. sj). Anterior femora pale; hind infuscated at tip 21. corn» white. 22. Hiibalhatna Norton. Anterior femora infuscatod basally, paling npically ; posterior tibia- gradually infuscatoil, more strongly toward tip. 23. paUirentria CreiSBOXX. 93 apor- eciir- lilllv pale noiji. 'ton. :. Sp. 8!S011. sp. more Malta. I. (No male repreHciitativos). II. Head not narrowed back of compound eye.s, usually expandiu".;; antonniu slen- der, not or scarcely compressed, and nearly if not (to/i« n. sp. 2. Venter aud more or less of tergum pale. Wings hyaline; stigma brown. Head pale, except largo spot on vertex H. aitratiiH n. sp. Head black \. aariDitiaciis n, s\). Wings strongly in fnscated; stigma and costa smoky.. 26. inj'umatu,^ n.sp. ;i Head and tliorax mostly yellow ; abdonu;n black, exceit tip; stigma and costa hyaline 27. thoracicua n. sp. III. Head usually distinctly narrowed back of compound eyes, never expanding; antonna\ usually shorter, stouter, and compressed. 1. lUack, including all of venter. Pronotum and teguhe black; legs beyond base of femora yellow, infus- cated 28. kvebelei n. sp. I'ronotuni, teguhc, and legs reddish yellow 2i). occidenlalia n. sp. 2, lilack ; venter more or less pale. Orbits pale, or head with black limited to spot about ocelli. ;U). caroUnvnaiH n. sj). (►rbits black or strongly infuscated. Clypeus deeply emarginate; triangle between antenna' an ater Mc(Jillivray 9 I'J aurantiucus n. sp. i 9 -^ auratus n. sp. 9 8 aureopectus Norton = extensicornis.. 5 carolinensis n. sp. ^ 30 dypeatUM n. sp 9 lii coloradensis n. sp. 9 13 corniger Norton ^ 9 i^l A(1IYNEMATI:S— COntillUecl. 1/ i. n\ m I.I M minntns n. sp. c{ 32 iiioutiviiguH 11. sp. 9 12 nevadonsis n. sp. J 33 nigropeetiis Cressoii J 17 oi'ciilontalis u. sp. ^ 29 ocieatiia llaniiigton 9 3 palliveutris Cressoii 9 -3 pleuricus Norton 9 1*^ piibesceusn. sp. 9 li pnnctnlatus ii. &p. 9 ll^ rohustiis n. sp. 9 1 1 ruralis Cressoii 9 -~ snadiisCresson 9 " subalbatiis Norton S 9 i^- tlioracicus n. sp. rf--- '-^7 tritici n. sp. th 8 mm.; exp. jil. 18 mm.; rather robust, elongate, .sbining; clypeus deeply emarginate, lobe.s triangular, rounded, and with labrum clothed with long hairs; froutal crest and lateral walls of ocel- lar basin distinctly but not strongly elevated, tbrmer slightly broken at mid<[le; antennal fovea shaUow, indistinct; antenna' slender, as long as .lead and thorax, fcmrth Joint nuich longer than third; second recurrent vein interstitial with second transverse cubital; outer veins of di.scal cells of hind wings interstitial; stigma rather broad, ovate or some- what ta])ering; sheath very long, rounded at apex, projecting free one- half its length, blades thin and closely applied; cerci long, very sleu der, lililbrm ; inner tooth of claw near apex rather broad. Color brown- ish black; abdomen lighter, inclined to fulvous; face below antennie, upi)er and posterior orbits, pronotuni, teguhe, and legs except bases of coxic, reddish yellow, strongly infuseated, particularly posterior tibiie and all the tarsi; veins, including stigma, dark brown. One female, Cressou's type. Collected by Mr. George Dimmock near the sunnnit of Mount Washington, New Hampshire. (Coll. Am. Ent. Soc.) L*. Pachynematus ruralis Cresson. 1880. .\emalH8 ruralia Crossou. Trans. Am. Ent. Soc, viir, p. 5. Female. — Lengths mm.; head strongly developed back of compound eyes; clypeus angularly incised, lobes broad and rounded; ridges about anterior ocellus wanting ; pentagonal area smooth, not depressed ; antennal fovea shari)ly defined anteriorly; anteunte short, slender, Joints 4 and ."i subeipuil and slightly longer than 3; intercostal vein nearly interstitial with basal; second cubital and second recurrent interstitial or nearly so, as also the outer veins of discal cells of hind wings; sheath very priminent, elongate, projecting free one-half its length, regularly tapering on both margins to rounded apex, blades thin, closely applied; cerci very slender, filiform; inner tooth of daw very minute. Color brownish black; orbits except narrow inner mar- gins, tiu^e below base of antenme, pronotuni, teguhe, abdomen beueath, last dorsa less brow tibiie and veins, incl One feu ■5. Pachyni 1889. N Female. what bac iiate, lob< walls; cr( 3 and 4 si ovipositoi tip of ab( applied; shining r< mesonotu turn, and tibiie bro lledesc by Mr. H species, p color the and tip o 4. Pachyi Female thorax; but broa raised lii lar, disti thorax, t that the moderat broad, rs inner to inner or broad s' scutellu center a spondin black; < na; dar veins, e I: l.s II ')1 . 31 95 lust dorsal segment, sheath, and legs yellowish white, with more or less brownish infiiscation ; bases of coxie brown ; femora and tips of tibite and tarsi brownish; wings slightly infuscated, nearly hyaline; veins, including stigma, brown. One female, Oresson's type. Nevada. (Coll. Am. Ent. Soc.) '•). Fachynematus ocreatus Harrington. 188!>. Nematus ocreatus Harringtou. Can. Ent., xxi, p. 95. Female. — Length S.omm. ; moderately robust ; head expanding some- what back of compound eyes; clypeus broadly, rather dee[)ly einargi- nate, lobes rounded; ocellar basin wi*^li distinct and broad lateral walls; crest strong, unbroken; fovea shallow; antenna' slender, joints 3 and 4 subequal, fifth somewhat shorter; venation normal; sheath of ovipositor very long and large, projecting one-half its length beyond tip of abdomen, apex broadly rounded, blades thin, translucent, closely applied; cerci very long, slender ; claws with minute inner tooth. Color shining resinous yellow; antenna', vSi)ot on either side of lateral lobes of mesonotum, apex of scutellum, a few indeterminate marks on metano- tum, and narrow border of basal plates brownish black ; extreme tips of tibiie brown ; wings hyaline, stigma paler basally, costa yellow. Kedescribed from Harrington's type specimen. A specimen reared by Mr. Harrington from larva on spruce agrees very closely with this species, particularly in possessing the unusually developed sheath. In color the legs are a little moie inclined to reddish and the hind tarsi antl tip of sheath are distinctly infuscated. (Coll. Harrington.) 4. Fachynematus aurantiacus new species. Female. — Length 9 mm. ; robust; abdomen at middle much wider than thorax ; head not narrowing back of compound eyes ; clypeus distinctly but broadly incised, lobes broad, rounded; ocellar basin with sharply raised limiting walls; frontal crest sharp, unbroken; fovea deep, circu- lar, distinctly limited ; antenna? slender, about as long as head and thorax, tapering, third joint longer than fourth ; venation normal, except that the second recurrent is sometimes interstitial or nearly so; stigma moderate, widest at middle, regularly rounded on h)wer margin; sheath broad, rather suddenly truncate near apex; cerci slender, not tapering; inner tooth of claw obtuse, remote from apex. Color orange yellow; inner orbits, head, above antenuie except upper and posterior orbits, broad stripe on the anterior and lateral lobes of mesonotum, apex of scutellum, postscutellum, spot on either side of cenchri, metascutum, center and sides of the basal plates, lower half of mesoepimera, corre- sponding sclerite of the metathorax together with spot on mesepisterna, black ; extreme tips of posterior tibia' find their tarsi infuscated ; anten- na? dark brown above, reddish ferruginous beneath; winc:s hvaline; veins, except costa, brown; stigma brown, costa yellow. 96 Male.— Length 0.5 inin.; stiuctuially for the most part as in fenuilo; lioad not narrowing back of compound eyes; antenna' nearly as lon<; as body of the insect, strongly tapering, robust, and somewhat com pressed basally; procidentia broad, rounded, not projecting more th;iii half its width, strongly keeled. Color black, shining; apex of clyi> eus, labrum, palpi, angles of pronotum, teguhe, legs except bases ol coxa', venter, and most of tergum yellowish ferruginous; base of tin- dorsal segments, particularly of the first and second ami fifth to seventli. brownish black; in some si)ecimc:)S all the segments are brownish black basally; tips of posterior tarsi and sometimes extreme tips of posterior tibia' infuscated; antenme reddish brown; wings hyaline, costal veins pah', stigma and veins otherwise brown. Four females and live males. Montana. (Coll. Am. Knt. Soc.) IS more or ments. T and uter veins reac Molr.— tural deta pound eye notched ; oodes are short, bhu eipial; pr« hypopygii ora, tibiic. \l 5. Pachyuematus extensicornis Norton. 'til; mi } I'l ifry\ I'roc. IJost. Soc. Niit. Hist., viir, p. 15'J. rro(!. Am. Ent. Soc. riiilii., ui, ]». 7. Tiaua. Aiu. Eut. Soc, i, p. 117. (Cat., otf., Trans. Am. Eut. Soc, i, p. 197. (Cat., etc., (Cat., etc., p. 185. 18(J1. Nematnn exlcnsicurnis Norton. ISOl. Xi:matna marylandirus Norton 18(t7. Xcmatm extcnakornis Norton. p. r.!).) 18(i7. XemutHx marylandieits Norton. p. 51).) 1S07. Xematiis aHreo2>vitii8'iiorton. Trans. Am. Ent. Soc, i, p. 21!). p. 81.) 1878. Xematns extensk'ornia ProvMnihov. Nat. Can., x, p.54. 188:5. Ncmalus cxlcnaU'ornis rrovanchcr. Add. Fauu. Ent. Can. Hym. 181)1. Xcmalas manjlandicus Kiley and Marlatt. Insect liifo, iv, p. 174, tig. 14. Female. — Length 7 to 8.0 mm. ; very robust species; abdomen particu- larly broad; head very much enlarged back of compound eyes; clypeus very shallowly excavated, lobes short, rounded; frontal crest and sides of ocellar basin strongly and distinctly defined, the former very minutel> notched; antennal fovea extending laterally over bases of antenna'; antenna' moderately slender, tapering, joints distinctly defined, 1 and li equal; second recurrent vein interstitial with second transverse cubital; third cubital cell two ami one-half times as long on lower mar gin as wide at base; discal cells of hind wings long, narrow, upper usually exceeding the lower; stignui rather broad, oval, not tapering more at apex than at base; sheath moderately broad and thick, ob licpiely truncate, upper edge nearly straight; cerci rather long, not tapering; claws with it very minute inner tooth, about \ of length of claw from apex. Color resinous or sulphur yeUow; antenna', Muali spot iii'luding ocelli, stripe on lateral lobes of mesonotum, spot on either side of and on base of scutellum, metauotuni, tergum except narrow lateral margin and the two terminal segments, and sheath brownish black; bases of posterior coxa;, apices of their tibije and their tarsi, infuscated. There is ordinarily a faint trace of a black stripe on the middle lobe of the mesonotum, and in light specimens the black markings of the mesonotum are nearly obliterated, and the abdomen t'. adult mule of tibia' 11 veins dai at center llepres from lar colhicted Nat. Mil!- «. Pachy FemnU dilated I V6 97 is more or less biiiidcd with yellow on tlie i»osti'riur iiuii^iii of (lie se;;- iiients. The wiiij;' veins are li.nlit brownish for the most [»:irt; the cost a and liter half of subeosta, the stigma, and tiie lyases of most of the veins reacldny the body of both foie and hind winys are nearly hyaline. Male. — Len,utli <» to 7..") mm.; rather slender, elonuate, shininj?; striie- tiirul details in general as in fennile; head not narrowed back of eom- l)ounII; of tibia' more distinctly inluseated; p(>sterior orbits tinged with fulvous; veins dark brown; stignui and eosta yellowish brown, the former lighter at center. llepresented by many specimens of both sexes, some of them reared fnun larva' taken on wheat in Indiana by Mr. Webster and others collected throughout the Northeastern Tnited Stat«!S. (Colls. (J. S. Nat. Mus., Am. Ent. Soe., ami Cornell rniv.) 0. Pachynematus affinis new species. Fc'ww/r.— Length o.o to (I mm.; very robust, shining; head greatly dilated buck of eyes; <-lypeus very broadly and not deeply excavated, 13441)— No. 3 7 il i |! i if » I 4 f 1 ' k 08 rl P m ,) 1^ \i lobes nuinued; vertex louj^hciu'd ; liitenil walls of ocell.ir basin iiTej,ni lar, not veiy distinctly raised; frontal crest rather sliarply but not strongly developed, unbr(;ken; antennal fovea shallow, extending widely over bases of antenna-; antenna- considerably longer than head and thorax, very slender, tai»ering, joint 4 as long as or longer than .'5; second recurrent interstitial with second transvers*- cubital; upper discal cell of hind wings very slightly exceeding lower, venation other wise normal; stiguia broad, regularly rounded on lower margin; sheatli rather narrow, tapering, straight on upper nuirgin, obtusely pointed; cerci long, slender, filiform; inner tooth of claw miniite, remote from apex. Color luteous; antenna-, small spot including ocelli, spot on lateral lobes of mesonotum, spot on either side and ajtcx of scutelluni. postscutellum and central region of metanotum, basal plates, tergiiin (except lateral margins and last two segments), and sheath blaci<; apical nuirgins of segments yellow in the lighter specimens; extreme apices of hind tibia-, the hind tarsi, bases of i)osterior coxa-, and small spot bcueat.i anterior wings infuscated; stigma, costa, upper edge ol subcosta, and bases of all veins reaching the body hyaline; other veins brown. Male. — Length (i mm.; not very robust, shining, head expanding beyond comi)ound eyes posteri(»rly ; clypeus scarcely enuirginate, nearly truncate; vertex roughened; AViills about ocellar basiu rounded, indis tinct, basin narrowly excavated at center; antenna! fovea circular, shal- low, extending laterally over bases of antenna- ; antenna-, long, tapering. cylindrical, basal joints slightly com|»ressed, joints nodose at tip, fourth longest; venation nonnal, except that the second recurrent and second transverse cubital and the outer veins of discal cells of hind wings art- interstitial ; stigma moderately broad, rounded beneath, tapering oi acunnnately pointed; lu'ocidentia projecting only about half its width, broadly truncate at apex; daws with uiinute inner tooth remote from apex. Color black; clypeus, mouth ]>arts, u|»per and posterior orbits, apices of femora, the tibia- and tarsi, and extreme apex of abdonven, particularly h^ pupygium, yellowish ferruginous, more or less infuscated. particularly at apices of posterior til)ia- and all of tarsi; veins brown: stigma and costa light brown. Eight females and four males. Montana. (Coll. Am. Ent. Soc.) Fachynematus suadus Cresson. 18S0. yematHs Hnadns Crt-sson. T. 188(). Xemaliis nnoduH Pruvanclior. ins. Am. Ent. iSoc, \ ni. ]>. 10. Add. Faun. Can. Ilyni., p. 21. Female. — Length (i.o nun.; very short and robust; head strongly expanding posteriorly to compound eyes; clypeus broadly and shal- lowly excavated; frontal crest and sides of ocellar basin indistinct; vertex somewhat roughened; anteumil fovea aln»ost wanting; second recurrent interstitial with second transverse cubital; discal cells of Jiind wings of about ecpuil length; third cubital cell but little woie than twice lengtl.i; «ti pointed at inner tootl narrow spo mestmotuni the bases o dish fuscoi wings infu.^ hyaline. Two fem Am. Ent. t 8. Pachyne Fcmale.- thorax, so shining; c rounded ; lar basiu i deep, circi mc, anten joints ;} t; :itli Ml: Olll on nil. iiiii 99 than twice as.lonj;' as wide at l»ast', its upper and lower sides of e(pial leiij^tl.i; stigma oval at base, rather acute at apex; sheath narrow and pointed at tip, upper edge straigiit: cerci i»rominent, not tapering; inner tooth of claw distinct Color siiiiiing honey yellow; antenna-, narrow sp(>t connecting ocelli, line on the anterior and lateral lobes of inesonoturn, niesopostscutelluni, nietascutuni. center of basal plates, and the bases of the first six dorsal segnu;nts IdacU or fuscoi-s; sheath red- dish fuscous, almost bhu'k ; tarsi infusi;ated, particularly posterior pair; wings infuscated; veins light yellowish brown; stigma and c(»sta nearly hyaline. Two females, labeled "F. 15."' and "N. II.,' Cressou's types. (Coll. Am. Ent. Soc.) 8, Fachynematus auratus new spe» ios. Female. — licngth 8 mm. ; very robust; abdomen very much wider than thorax, somciwhat llattened; head strongly ex[)anding back of eyt\s, shining; clypeus distinctly but shallowly and broadly emarginate. lobes rounded; vertex roughened; frontal crest and lateral walls about ocel lar basin rounded, indistinct, basin scarcely excavated; antennal Ibvea deep, circular, with lateral channels branching out over bases of anten na3, antenna* but little long(U" than head ami thorax, slender, tapering, Joints .'} to "» sube«iual; venation normal, except that the second recur rent vein is interstitial, or nearly so, with the second transverse «'ubital, and the outer veins of the discal cells of the posterior wings are nearly interstitial; stigma broad, regularly rounded beneath; sheath rather narrow, slightly excavated on upper inaigin, rather sharply jjoiuted at apex; inner tooth of claw nunute, remote from apex. Color orange yellow; antenna', small spot on vertex including ocelli, central line on scutellum and basal half of same, icntral area of metanotum, tergnm except narrow lateral margin, apex of sixth and all of terminal seg ments, extreme bases of posterior coxa', and the outer margin of sheath black; tips of posterior tibia' and their tarsi infuscated; veins, includ- ing stigma and costa, except basal third of latter, dark blown. Male. — Length 0.5 mm.; much more sleiuler than female, but less so than male of marylandieus; structurally much as in female; head not narrowing bsick of compouiul eyes; aiitenna' long, slender, not notice ably compressed; procidentia large, triangular, ]>rojecting, obtusely rounded at tip. Color black, shining; face below antenna', posterior and upper orbits, pronotum, tegukc. venter extending over dorsal i'iX'^i', narrowly on basal segments and more broadly toward a[)ical ones, legs entirely except bases of coxa', yelktwish ferruginous; extreme tips of posterior tibia', with tarsi, slightly infuscated; wings hyaline; veins colored as in female. Four females and two males. Montana. (Coll. Am. ICnt. Soc.) This si)ccies is very closely allied to the last in general characteris- tics, but is easily distinguished from it, also from extensieoruis, with . I «.» 100 I!?' I 1 ^ 1 I < Ml t wiiicli it agrees more nearly in point of size. The three si)eeiet! together lorui a very closely allied g'roui>, and doubtless have similar habits. 1). Pachynematus graminis new si)eeies. Female. — Length C.5 mm.; head dilated back of eyes; clypeus emar ginate, almost truncate; antennal fovea distinct and breaking slightly through the frontal crest, the latter extending indistinctly to the orbits; second recurrent interstitial with the seconot on each of the anterior lobes of mesonotum, apex of scutellum with spot on either side, metanotum, torgum except tip, mesei>imera except large lateral spot, more or less of base of venter, bases of coxa', trochanters, and bases of femora black; extreme tips of tibia', i>articu- larly hind pair, and tarsi strongly infuscated; sheath brown; except as noted, resinous yellow; wings hyaline; veins brown; stigma and costa hyaline. Two females. Colorado, C. P. (iillette, collec^tor (('oil. U. S. Nat. IMus.), and Idaho (Coll. Cornell Univ.). Norton's tyi)e specimens are lost. 11. Pachynematus pubescens new species. Female. — Lengths mm.; robust, shining; head dilated back of eyes; clypeus broadly, shallowly notched; ocellar basin rather indistinctly detined, crest low, unbroken; antennal fovea triangular; head very coarsely roughened with small elevations ami, together with thiu-ax, densely clothed with long whitish pubescence; antenna' slender, joints :1) 11 It 101 4 an»l a subeqnal, lonjiPv tlian .'»: sheath short, tai»(M'in{j. obrnsoly pointed; claws witli minute inner tooth; venation nornnjl. except that the seeoiM I recurrent is interstitial with the second cubital: sti feet, .lidy !», 1S!>1. (Toll. Cormdl Univ.) 12. Pachynematus montivagus new species. Fvmalv. — Length aI area distinctly detined, hit(Mal walls sharp, minute; crest unbroken, not prominent: fovea oval; antenna' short, slender, taperinj;, joints .'3 arid 4 sube(pial; sheath short, taperinii; claw with short inner tooth; venation noinial, exceid that secioiul lecurrent is interstitial witii second cubital; stifjnja broad, rounded beneath, scarcely tapering;. (>>hu' black; labrum, anj>h^s of ])i'on(>tuin, te<>nla', extrenu' tip of abdomen, venter for the most part, and leiis yellowish, iindined to reddish on femora.; c^oxa* ex(!e]>t tii)s and extreme bases of fenuua infuscated; tips of posterior tibia' and their tarsi browin'sh; abdomen with brownish s])ots beneath, noticeably at base; winys hyaline, or nearly so; veins brown; stijuina and costa light yellowish, almost hyaline. One female. Mount \Vashin,ijton, N. II. (Coll. ('osely jiunctared; anteinne very slender, elongate. Joints ;» iind 4 snbequal; interco.^ il more than twice its length anterioi' to basal vein; second recurrent interstitial or nearly so with second cubital, venation otherwise normal; stigma large, widest near base; sheatli robust, sliglitly acunnnate toward apex; cerci long, filiform. (/ nun.; somewhat elongsite, shining; head rather coarsely punctured, widening notic«?ably ba(dc of compound eyes: clyi)eus not very deeply i'lnargiuiite, loV)es short, rounded; ])entagonid arcii distinctly defined, walh not very sharply raised; fovea shallow; <;rest low, unbrtdcen; aiitennie rather slender, fourth Joint a little longer than third; sheath tiipering. somewhat obli(piely truncate toward tip; venntion normal, except that the second recurrent is interstitial witli second cubital; stigma broad, rounded on lower margin; claws witli ndnute inner tooth. Color black; sjuall s|)ot beneath bases of antenuic. til>s of clypens, Inbruni and other mouth parts, outer half of jn'onouuni. teguhe, legs, and venter of idtdomen yellowish; posterior margins (»l dorsal segments, espe<'ially basal ones, pale, togetliei- with all of tlic terminal segment; bases of coxie, extreme tii)s of posterior tibia', and the postericM- tarsi brown: bases of femora slightly infuscated; sheatli brown; wings nearly hyaline; veins and stignni light brownish; pos terinr orbits veddish, strcmgly lnfus(!ated. Two females. Moidana. (C(dl. U. S. Nat. Mus.) HI. Pachynematus ater IMcCiillivray. ISiW. Menm aim Mrdlillivmy. (!an. Kiit.., xxv. p. 2',\H. /'Vwff/r.— licngtlH* mm.; rnell Univ.) 17. Pachynematus nigropectus Cresson. 1X80. Xeiiintiifi niiji-opcetiin OrosHoii. Tniiis. Am. Kiit. Soc,., viii. p. Ct. Female. — Length S nun.: moderately robust, glistening; clypeus very gently emarginate; frontal crest and lateial margins of ocellar basin distinctly but not st ongly develoi)ed, forniei- uid)roken; antennal foveti deep, expanding broadly posteriorly; antenna- slender, filiform, joint 4 longest, 5 longer than .'i; viMuition normal; stigma very broad, ovate, somewhat acuminate at apex ; sheath narrow, regularly rounded at apex; cerci very narrow, not tapering; inner vhxw tooth rather large, sharp. Color for the most part lutcims; fa(M' and upper and posterior orbits ])allid; antenna', vertex and o(rci|>ut, i)rosteinum, mesonotum, metano- tum, broad stripe on dorsal s(;lerites of ab(h)men except last, basal half of mesepimera (i)ectus), and the metepisterna black; tip of sheath and tips of posterior tibia', the jiosterior tarsi, and the anterifU' tarsi to a less extent, infuscated ; veins, iiutluding stigimi and the <;osta nearly to base, brown; wings slightly infuscated, almost hyaline. One female. Nevada. (Coll. Am. Va\\. Soc.) IS, Pachynematus punctulatus n<'w species. Fi'tnalc. — Length 0,5 r II ni.; rather robust, lu'ad and thorax strongly pumitured and somewhat opa(iue; clypeus, labrum, and pleura' with rather long ami denser yellowish hairs; clyjjeus shallowly emarginate, lobes broad and rounded ; frontal crest and elevated ridges about ante rior ocellus ])rominent, former unbrols of clypeus, hibriim, pronotum, tegula', h'gs, and abdomen including cerci reddish yellow; extrenu' tips of p«»sterior tibia' and the /;' / ; 1 "■SI I I i 104 posterior tarsi slij>htly infiiscatod; veins ami stijiina lijjlit brown; costa yellowisli. « One tonialci. Ni'w llanipshiri'. (Coll. Am. Hnt. Soc.) 10. Pachynematus abdominalis new sjjotMes. Female. — IjOiijU'tli. '>.■"» mm.; robust, shinin*;'; lioad o1)s<'uro(l by dense tmnctnatiou; (Hypciis nearly traneate, scarcely emar.uinatt'; oeellar basin indistinctly e, prominent inner tooth near apex. Color black; clypeus whitish; pronotum, tefruhe, an«l Icjis re, reddish yellow; venter of abdomen with yellowish central strijie and more or less yellow toward tip; tii)s of posterior tibia' and the pos terior tarsi infus mm.; very short, I'obust; clypena shallowly an, slender, Joints.'i and 1 subeqnal; vena tion normal ; stigma broad, eveidy rounded ; sheath broad, oblicpiely trun- cate at ai)ex; cerci rather robust; claw with minute inner tooth. Cv>lor black, shining; labrum, bases of mandibles, i)alpi, angles of ])ronotum, tegida', venter of abdomen, terminal dorsal segment, and the legs light yellowish; extreme bases of coxa' and the sheath dark brown, almost black ; hind tarsi dark brown ; wings slightly in fuscatcul, almost hyalim^; veins, including stigma and costa, dark brown. Male. — Length 5 mm.: head narrowing ba<;k of com])ound eyes; anttMina' very large and long, compressed; i»ro(Mdentia. narrow, not strongly jn'odnced, I'onnded at apex, ('olor as in female, excei)t that the light areas are inclined to yellowish brown, with the venter of the abdomen decidedly brownish. One femah' and live males. Mount ITood, Oregon, and Washington. (Coll. Am. Ent. Soc.) 21. Pachynematus corniger Xort(m. IStil. .\Vm«7»(»t oorHiV/n'Nortiiii. I'roc. Host. Soc. \nt. lliHt.. vm. p. ir»!». IHfiT. XcmnliiH onniigcr Xortoii. 'I'raiis. Am. lint. S<>( ., i, ]». l!lit. (i'ni., vU'., )». (il.) 1H7S. Xviiiatiis riiniiticr I'rnvaiii'licr. \iit, (^mii.. i, jt. ."i."!. lSS;t. Sviiiiihis coniiticr I'roviiiiolio; . I''iiini. I'.iit. Ciiii. livin.. )). 1HI Female. — Length (! to 7 mm.; moderately robust; clyi)ens shallowly incised, approaching truncate; veilex fnn'ly tid»erculate; lateral walls of oeellar 1 posteriorly ; nearly to or antenna'; (!Ostal eross slightly inc transverse larly ronn( obliquely ti long, scarce Color bla(!l third of jirc exeei>t extr of tarsi, vei ment and s more or les nlarly hind except bas< Male.—h lemale; an dentiaronv black; tip^ of abdomei terior tibia: infuscated Seven IV shire, Peni (Coll. V. S 22. Pachyn isr.i. A'< 1S67. N< p. r.i. 187S. .V 1S8:$. .V( Female. pp.ictured h)bes rou broken al but not f riorly inti anly raised, bocoininy obsolete posteriorly: frontal crest acutely elevated, auijulated, and extendiu}; nearly to orbits: antennal fovea broad, exteiulin^ laterally over bases of antenna'; antenna* long, slender, third Joint I'^uyer than fourth: inter- (!Ostal cross nerve nearly twice its length anterior to basal nerve, slightly inclined; .second recurrent interstitial, or nearly so, with second transverse cubital: venation otherwise normal: stigma broad, regu- larly rounded beneath; sheath broad, straight on ui)i)er maigin, obliquely truncate at apex, bordering hairs minute, scattering; cerci long, scarcely tapering; inner tootli )f claw snnill, remote from apex. Color black, shining; apex of clypeas ami other mouth ])arts, outer third of ]»ronotuni, teguhc. anterior ] airs of legs entirely, posterior ])air excei)t extreme bases of coxa' and apices of femora and of tibia- and iill of tarsi, venter (►f abchunen excejtt overlapping sides of last dorsal seg- ment and sheath, very narrow lateral margin of abdonuMi dorsally, and more or less of ai)ex of all segments yeHowish white; femora, partic- ularly hind pairs, more or less inclined to reddish: stigma and veins, except base of costa and slightly at apex, brown. Male. — Length 5 to ."i.amm.; structurally fVu' the most i)art as in lemale; antenna' very broad or strongly cominessed, ta]»ering; proci dentia rounded at apex, not constricted basally, strongly keeled. (l(dor black; tipsof clypeus, mouth i>arts, angles of ])ronotum, teguhc, v(U)ter of abdomen, and legs except extreme bases of coxa* an. \W. (('.it U'., p. 01.) 1878. Xrmaliin fiiihdihntiis I'rovanchor. Nat. Can., x, p. "il. 188:{. XeiiKihiH xiihtillKiiiin I'roviinchcr. Fann. Kn(. Can. Il.vni.. ]). 181, /.VMifl/(.._Length S mm.; rather elongate: head densely and (closely pp Pictured or rugose; clypeus distinctly but not deeply cmarginate, h)bes rounded; front'.il crest very .strongly develoi>cd, very slightly broken at center, not reaching orbits; sides of (tcellar basin distinct, but not stnmgly elevated; anteniml fovea distinct, broadening i)oste- riorly into a suture beneath frontal crest; antenna- longer than head and thorax, moderately robust, tapering, third Joint longest; venation nonnal, except that .second recurrent is interstitial, or nearly so, with second tran.svers«' cubital; stigma broad, scarcely tapering, until near apex; .sheath rather broad, rounded, truncate at ai)e\, straight on upper margin; <'erci rather stout, tapering; inner toly, so\ne\vhat angularly em.argi- nate, lobes 1 very strong antenna' hu compressed than broad, rather narr interstitial 01 not twic wings intei at apex. C upper and apex of ab apices of c light fulvc costa yelh One ma] Webster; 25. Fachyi Malr.—] rowed bai walls abo circular; joint long base, verj venation nearly so cells of li near bast remote fr and post( tibia' and stigma ai ish, almo Two ni 20. Fach; Malc- narrowii almost t antenna defined; what c< truncati tr.oth. pronotu ,v va lIHl jrsi lis : 01' Im- m lies ino IS: »i(' 107 nate, lobes broad, roniidod; iVoiital ciost and sidt^s of o(!ellar basin not very strongly elevated, distinct; antenna! ^ovca very shallow, broad; antenna' longer than head and thorax, rather robust and tapering, not eonipressed, loints 4 and 5 subeqnal, longer than 3; i)ro(;identia longer than broad, squarely truncates at apex; hypopygiuni strongly produced, rather narrow, and very slightly eniarginate at apex; second recurrent interstitial or received at base of third cubital cell, which is scarcely or not twice as long as wide at base; outer veins of discal cells of hind M'ings interstitial, or nearly so; stigma broad at base, tapering roundly at.apex. Color black, shining; triangular spot below antenna', labrum, upper and posterior orbits, palpi, outer angles of ])ronotum, tegnla', apex of abdomen, hypoi)ygium and more or less of venter laterally, apices of coxa>, trochanters, femoia cxcci)t bases, tibia' except apices, light fulvous; tips of tibia', the tarsi, veins, ami stigma infuscated; costa yellowish on basal half. One male, roared from a larva collected on wheat in Indiana by F. M. Webster; adult issued A])ril 22. (Coll. I ■. S. Nat. Mus.) 2r>. Pachynematus apicalis new s])(M^ies. jMalr. — Length 7r in. ; very slender, elongate, shining: head not nsir- rowed back of com])Ound eyes; clypeus very shallow ly eniarginate; walls about ocellar basin distinctly raised, rounded; ant<'nnal fovea cin'ular; antenna' very long, slender, tajiering, not com])ressed, fourth joint longest, all joints distinctly nodose at tip; procidentia broad at base, very long, tapering suddenly at tij), which is obtusely roumled; venation normal, excei)t that the secoiul recurrent is interstitial, or nearly so, with the second transverse cubital; outer veins of discal cells of hind wings are also nearly interstitial; stigma broad, widest near base, tapering regularly to apex; imu^r tooth of claw very nnnute, remote from apex of claw, t'olor black ; tips of clypeus, labrum, u]»i)er and posterior orbits, angles of pronotum, teguhe, apical half of fetnora, tibia'! and tarsi, and apical segments of abdonu'u yellowish ferruginous; stigma and costa and all veins reaching the body basally light yellow- ish, almost hyaline; other veins brown. Two nmles. Montana. (Coll. Am. Hut. Soc.) 2(». Pachynematus infumatus new species. Male. — Length S mm.; robust, head not nearly as wide as thorax, not narrowing back of compound eyes; clypeus very slightly emarginate, almost truncate; vertex lugosc; walls about ocellar basin indistiiu!t; antennal fovea extending laterally over bases of an enna', indistinctly defined; antennas much longer than head and thorax, tapering, sonuv what com])ressed basally; luocidentia v<>ry broad, tapering, scpiarely truncate at apex, not keeled; venation normal; claws with miiuito inner t;)oth. Color black ; labrnm, uitper and i)osterior orbits, outer angles of proimtum, teguhe, outer two-thirds of femora, tibia' and tarsi, abdomen ' J' ^■1 108 b except base of iirst segment dorsally, yellowish ferrn<>- incus; the tarsi and the extreme apices of the posterior tibia', pronotum, and teguhe arc distinctly infascated; veins yellowish brown, stigma and costa lighter, but distinctly infascated; wings distinctly smoky, especially centrally; sniall si)ot in center of the median and of the second cubital cell. One male. Agricultural College, Mich. (Coll. V. S. Nat. iNIus.) 27. Pachynematus thoracicus new species. Mah>. — Length (> mm.; lather robust, head expanding back of (com- pound eyes; aiitennic slender, cylindrical, filiform, not compresse«l; clypeus broadly emarginate, lobes rather i»ointed; pentagoiml ridges sharply raised; antcnnal fovea divari(!ating over bases of antenna' ; second recurrent and' second ( ubital and outer veins of discal cells of ])osterior wings interstitial ; stigma broad; claws with very minute inner tooth; i)rocidentia very broad, protruding, tapering to roundly truncated ai)e\. Color luteous ferruginous; antenna', triangular spot ben«'a(h, large spot on vertex extending nearly to base of antenna' and posteri(niy to occiput, center of lateral lobes of mesonotuni, small spot at aju'x of scutellum, (central area of metanotum, in(duding all of basal plates and the abdomen dorsally and ventrally exce])t apex, black; thorax beneath and legs entirely y(dlowish ferruginous; wings hyaline; veins light brown; costa and stigma yellow, nearly hyaline. One male. Montana, ((^oll. Am. Ent. Soc.) In charact(ns of head and antenna' and notably also in colorational features this species agrees with renuirkabie closeness with the female ni' (((finis, an mm.; rather slender; heai trUliionii Ilajjon. Can. Knt., xiii, i>. 'M. IHK',. XiiiKthiH vrivliKuiiii I'ack.ivtl. Kept. l'. S. Kiit., l»i>. llW-lKi. ism:!. Xvinatiin ctirh'^oiiii I'ackaitl. Mull. :!, I)i\ . Kiil., T. S. Uept. Aj^r., pp. l",l, :',{). 1SS:{. XiinatiiK crichnouiiVyleH. Can. Knt.. .w , p. L'0.j. I8SI. .Winahisirirhnuiiii FlctchtT. Can. Knt., xvi, pp. I'l.'i, I'll!. ISM. yeiitittii)! crkhvtnil Tarkanl. Am. Nat., X\ Hi, lip. !.".•:>-_".»(;. ISSl. XcmutHn cnclmonii Packard. K'ept. T. S. Dept. Aj^iic, i». ;!77. 1S8.">. XtmittiiH irkhtiuiiii rrovanclii-r. .\il. .">. lS8,j. yvmatna iriclinonii I'rovanclit'r. Nat. (an., x\, pp. ;i8, ['>-'>{). 188.'). XcHiatns erichsonii Vh'tvhiii. licjtt. Dept. Aj;iit!., Ottawa. Can., |.. I's. 188(i. XemtttiiH vritliHoiiii Harrinjitoii. Can. Knt., xviii, )•. :i!t. 188(1. Xvmatnn vrkhtionn I'loviinclier. Nut. Can., x\ i, \>. ',i'2. 1887. Ximatim cnchnonii Flotthcr. Kept. Dept. Aj;ric.. Ottawa, Can., ]». :>;".. 1888. Xemnliis vrivlisonii Ijintmr. Fifth Kept. Ins. N. V., i»p. 1(»1-17!>. 1889. X'vmatiia eiicltKuuii Flotcher. Can. Fut., xxi, p. 152. 1890. Xemiitus ericlttionH I'ackaid. Fifth Kept. U, S. Knt. Couini., p. 87!t. 1890. LiigavneinutHn vrkhmnU Kouow. Doutsch. Kntom. Zoit., xxxiv, i». -!17. Fevuile. — Length 11 mm.; exp. al. liL' mm.; large, moderately robust; head and thorax liiiely luiiictiired, entire body shining; «'lyi)eus scarcely eniarginate, almost truncate: frontal and lateral ridges of ocellar basin rounded, indistinct; vertex nearly smooth; antennal fovea long, shallow, deepest tit apex; antenna* about as long as head and thorax, rather robust, tapering, joints ."> and t subetjual; sheath broad, rounded, truncate at tij); cerci flattened, somewhat tapering; inter costal cross vein hyaliiu^ indistinct, but anterior to basal and nearly at right angles to costa; first transverse ! \Vl. Genus PRISTIPHORA Latreille. I'rhtiphoni Lutiuillc, I'liiu. Niit. dii Kcjjim Animal. I'liris. IHlTj. I'rislipliuni Kouow, Doutsclio Kiit. Zt-its., \.\xi\, 18!tO. p. L'liS. 15()s, but iu)t deeply so. When this Is the case, however.^ the smooth vertex, wli'ich is a very constant characteristic of the genus, tuUen in connection with the other characters, will usually determine the true allinities. Very little is kinnvn by actual rearings of the habits of the species, but in this i)articular they proltably luesent no striking l)eculiarities. A number of them feed on willow and 1\ idiutu ^'ortou is an important enemy of the cranberry. XAllLK ol' .Sl'EClKS. Jcmalen I. Head, thorax and abdomen black. \Vinj;8 strongly infuscated 1. niyra n. ap. Wings not or very slightly ininscattul. Tognhe black. Head small, narrow, not much more than one-half width of thorax. Posterior tibia- and tarsi unicolorous, pale. 2. lahradoris Norton. Posti-rior tibia' pale, tips black ; tarsi black.. H. hycophuiiiu Wiilau, Head broad, much more than ouc-half width of thorax. Posterior tibia' strongly infuscated, nearly black. 1. lata Cresson. Posterior tibia' pale except tips, which with tarsi are browu. .">. .•((«A.ii/(i«t'M»<8 n. s[>. Tegula' pale. l.iabrum black; extreme tijis only of hind tibia' black. 8ti{jma brown ti. iniirlfehltiw n.sii. Stigma luteous, pale at base 7. relalira Norton. J.,abrum, together with tip of cly]»eus, pale; apical half of liintl tibia- Idack ><. liaiikfii n. sjt. II. Head black; tlionix and abdomen, or abdomen only, distinctly marked or banded with yellow. 1. Proiiotum black or only the extreme angle yellow ; abdomen, with segments U to 5, yellow, sometimes interrupted centrally above !•. idiota Norton. 2. Prouotiim, with outer one-half, yellow; femora yellow; segments 1 to t reddish yellow, infuscnted 10. di/ari n. sp. 13449— No. 3 8 ^J> 114 -■:>> iV^V^jyvv. 3. rroiH»tuiii iis iiltovc; fbmorii brown at tijts or Ikihiw; sovfiimiits I tort yellow. Stigma tlinse times uk lonjj; as wide; costa not or scarcely paler than stigma 11. JovHlarin Cresson. Stigma twice as long as wide; costa mndi paler than stigma. 12. Iioodi n. sji. I. Pronotnm yellow ; thorax otherwise black; abdomen black, except latcial third of segments after tlie first and venter V,i. kocbeld n.sp. 5. Prouotnm yellow; thorax and abdomen reddish yellow, marked with blaik. 14. hivHtata Norton. Males. I'emora altogothor black, or at least hind pair, I*ronotuni and tegnla- black. Posterior tibia jiale, strongly infiiscatinl at tijis .">. nisliinmcnuin n.s]i. Posterior tibia' strongly infnsculed, nearly black I. /«/<« Cresson. Prouotnm black; tegnLe pale; apical lialfof hin\\. I'emora black basally, paling apically; pronotnm and clypcns black; labrnni infns- eated !*. i. hitvohi Norton. Pronotnm and legs reddish yellow; genitalia strongly infnseated. 17. ucaidcntalin n. sp. I'ronotnm black, except extreme angles; legs and genitalia yellow. IS. culorudviiHiH n. sp. iNDKX r<) .si>ix:ii;.s oi' I'uisrirnoUA. banksi n. sj). J 9 - • - ^ bivittata Norton 9 1 1 earolineiisis n. s]». ', head nitlier densely siiid iinely gi'iiiiuhite; ciypeus scjircely einiii{j;iiiate, almost truncate; v^levations, frontal ami ocellar, almost obsolete; aiitennal fovea broad, circular, shallow; intercostal cross vein about its own length anterior to basal ai.d strongly iuiilined; lirst transverse ciibi I al wanting, venation otherwise normal; stigma not greatly broadened at base; apex of cosi a considerably enlarged; scopaof sheath r;ither long and dense; ceici short tapi^ing; inner tooth of claw short, obtuse. Color black; tibia-, except api<'es of posterior pair and bases of tarsi, lighter, inclined to whitish; wings strongly infuscated; veins, includ- ing stignni and . lilt!. (Cat., «'tc., p. 58.) 1878. XematiiH labradoiix Vrnviunihvr. Nat. Can., .\, i». ni). 1883. y ma fits hihriiduriH Provanclmr. Faiiu. Hut. Can. Ilvni., jt. 18.">. Female. — Leiifrtli ~t nun.; short, robust; liejul and tlioiax doiisely grjHuilate-punctiite, with inimito hoary piibcsi'oiK'e; abdomen smooth, shining; bead narrow, not more than half as wide as thora.x, strongly trilobed when viewed from above; elypeus broadly but very sliallowly eninrginate, almost truncate; fiontal crest and sides of (tcellar basin indistinct, almost wanting; fovea indistinct; antenna' slioit, slender, scarcely taj)ering, third to fifth joints snbe(]ual; intercostal cioss vein nearly twit^e its length anterior to basal vein, inclined; third cubital cell not much more than twice as longas witle at base, venation otherwise normal; stigma ta])ering regularly to somewhat acainunate apex from rather broadly ovate bas«'; sheath tapering on both edges to rounded extremity, and with very distinct and heavy scopa; cerci strongly tapering; inner tooth of claw minute. Color black; nuirgin of labruni, bases of mandibles and palpi, tibia- and tarsi, apical h "'f of anterior pair and extreme tips of two posterior pairs of femora, fuhous, more or less infuscated; veins light yellowish brown, including stigma and costa; wings hyaline, or but slightly infuscated. One female, Norton's type(?). Labrador. (Coll. Am. Ent. Soc.) 3. Pristiphora sycophanta Walsh. 18(50. I'linlipiiom Hi/vopliania Walsli. True. Hnt. Sue. I'liil., \ i, p. JtW. ^ 1807. l'nnli2>ho>a nyeopltaiild Norton. Trans. Am. Hnt. Soc, i. j*. 7ti. (Cat., etc., 1).46).&' !8(i7. I'rjtijthorn lihialis Norton. Trans. .\ni. Hnt. Soc. i, p. 7(!. (Cat., otc, p. 1(5). 1878. rriHlijthora tibialiH I'rovanclior. Nat. Can., .\, p. r>0. 1881. I'rintipliorti gycitplutnta Packard. IJiili. 7, II. 8. Hnt. (!oniui., p. III. 1882. Xcmatan xiivophaiita K'lVhy. lAnt Ifyni. Itrit. Mus., i, p. 1 10. 1882. Xvmatux lririalin Kirhy. List Ilym. brit. Mus., i, p. 110. 1883. rrintiphoia tibialis I'rovanclior. Fann. Eiit. Can. llyni., i». 182. 188(5. I'ristipliitra xycopliuiitii ProvaMclier. A\iX. 1894. XematiiH tibinlis D'dla Torre Cat. Ilyni.. i, p. 2(1(5. 1895. rrintiphora Hi/vophuula Marlatt. I'roc Hut. Soc, Wasli., in, p. 2(57. 1895. I'riatiphora tibialis Dyar. Trans. Am. Hnt. Soc, .\xii, p.:(OI (iiirva). Female. — Length 5 mm.; nu)derately robust; head small, iiairow, not much more than half the width of thorax; dypi-us nearly truncate; vert(?x smooth, ridges rounded, subobsolete; fovea very minute, circu- lar; antenme slender, r.lightly tapering, third joint much longer than fourth; claw with very minute, inner tooth; venation normal, except that the second cubital is wanting, ('(jlor black, shining, including mouth parts and teguhc; anterior and middle tibia- and liirsi yellowish; posterior tibiae, except apical third, whitish; wings nearly hyaliuej veins and stigma brown. 116 One female. Nevada. (Coll. U. S. Nat. Mus.) A specimen from ItLacii, N. Y.. has also been referred, doubtfully, to this species. Mr. II. G. Dyar rei:red this insect from greeu larvie fouud ou white birch {Betula pupyrifera) at Keene Valley, N. Y., aud also ou willow and yellow birch at JeH'erson, N. Y. 4. Fristiphora lata (Jresson. 1880. Xcmatuii lalim Cicbhoh. Titirs. Am. Kiit. Soi'., viii. ]». 4. Female. — Length 5.;") mm. ; short, very robust; head nearly as wide as thorax, not uoti(*eably trih)bed, finely granulate ; body generally clothed with tin J hoary pile; clypeus trunciitc; frontal crest and sides of ocellar bitsin entirely wanting; antennal fovea very minute, shallow, circular; antenna' short, not longer than head aud thorax, somewhat compressed, tapering, third and fourth joints sube([ual ; intercostal cross nerve nearly interstitial with bsisal, inclined; third cubital cell not more than twice as long as wide at base; venation otherwise normal; sheath not very robust, tapering on both edges, with distinct scopa; cerci minute, not tapering; inner tooth of claw very minute. Color black; head and tho- rax 0[)a(iue, abdomen shining; clypeus, apical two-thirds of first pairot femora and their tibiic, aud tarsi fulvous, iuclined to fuscous; posterior tibial and tarsi fuscous; wings hyaline; veins dark brown; extreme augle of pronotum fulvous. Male. — Characters in geneial as in the female. Color the same, except that the female sometimes has the extreme tip of the pronotum yellow; antenna' robust, short, strongly compressed; first cubital cross veiu hyaline. Easily distinguished from all other males of the genus by the black prouotum and teguhe, aud black or strongly iufuscated biud tibia'. Two females and one male. Nevada. (Colls. Am. Ent. !Soc. aud 11. S. Nat. Mus.) Tills species is very closely allied to lahfadorifi, but difiors particularly iu the much wider head relative to the thorax, and also in minor details. r>. Fristiphora siskiyouensis new species. Female. — Length 5 mm.; rather robust; head large, nearly as wide as thorax; vertex smoo'h, shining, with no indications of ridges; clyp- eus nearly truncate; antennal fovea wanting, or nearly so; auteunai slender, slightly tapering, third joint much longer than fourth} claw with minute inner tootii; venation normal, except that second cubital is wanting. Coh)r black, shining, including mouth parts and teguhe; anterior tibia' and tarsi pallid, the tarsi slightly iufuscated; posterior tibiae white, except tips, which, with posterior tarsi, are brownish, almost black; wings hyaline; veins and stigma brown. Mate. — Agrees with female in coloratiiuuU characters; antenna*, stouter and somewhat compressed, distinctly tapering; easily distin- guished by tlie black pronotum and teguhe from tther species, except I the fOIIl fliite fllow 117 the closely allied lata, from wlilcli it may be soparated by tlie characters of the hiiul tibia'. ;:>> : , ■ ■ Two males and one female. Siskiy(mCouiity,OalT' April. Mr. Albert Koebele, collector, (('oil. U.-S. Nat. Mus.) This species is closely related in general appearance to sycophanta Walsh, but ditVers distinctly in shapo and size of head relative to thorax. it. Fristiphora murtfeldtise new species. Fenude. — Length (» mm.; not very robnst, shining; he.ad and thorax very finely punctured ; clyi)eus truncate; antennal fovea shallow, indis- tinct, merging into the smooth ocellar region; antennae moderately stout, joint 3 longest; intercostal vein more than its length anterior to basal; third cubital cell not more than twice as long as wide at base; inner tooth of claw obtuse, rather large. Color black; tegula', tro- chanters, tips of anterior femora, all tibia' except tips of posterior paii", anterior pairs of tarsi and bases of posterior pair, fulvous. One female, reared by Miss INfary Murtfeldt, at Kirkwood, Mo., from a smooth, greenish sing with black head, found feeding on black willow. Adult issued April 10, 1887. (Coll. T. S. Nat. Mus.) 7. Fristiphora relativa Norton. 1867. rrinUphorn relatinta Norton. Trans. Am. Eiit. Soc, i, p. 77. (C!at. otc, 1>. 47.) 1882. Ncmalus rrlaiinm Kirby. List llyni. I>rit. Mns., i, p. 110. Female. — Lenjith 0.18, l»r. wings O..SS inoli. Color sliininj^; bliick. Antenna' as in /'. tihialin. Head t'oriaceous, withont srnsiMc dojjrossiona ahont tlio oe(;ni; odjjo of nasns tncurvod. Tognla- and Ipj;" whitish; roxir and a wido hand tn tho teniora black; tips of posterior tihiie and their tarsi, except hasal Joint, l'nser)ns. Winjjs hyaline, stiKinH iiiid eosta Intoons, tho latter palo at haso; secon and the posterior tarsi bhu'k. Mok. — Agrees for the most pari in siructiirai and colorational cliar- 118 '-Jp acters with the Cemale. Aiiteima' arc stoutei' and somewhat compressed. DiHers from the I'emaU? in that the i)roiiotum is entirely bhick. One male and one female. Sea Cliff, Lonj» Island, and Ithaca, N. Y. Mr. Nathan P>anks, collector. (Coll. U. S. Nat. Mus.) 9. Fristiphora idiota Norton. 18(!7. I'risliphora uUota Nortdii. Trans. Am. Kiit. Soc, i, p. 77. Tnins. Am. Eut. Soc, i, p. 77. (Cat., etc., Rcpt. U. S. Dcpt. Affr., p. 207. . (iiiido to Study of Inaects, p. 217. Trans. Am. Eut. Soc, iv, p. 78. ]{cpt. II. S. Dept. Agric, p. 92. Nat. Can., x, )>. 50. 10th Ifopt. State Ent. III., 1880, p. (il). 18G7. VriKtiphora idciitidem Norton. p. 47.) 18(50. Prhtiphora ideiiUdem Glovor. 1870. rrintipliora idetitidem Tackanl, 1872. I'yialipJwra idenHdem Norton. 1877. PrMiphora irfni/irfcm Glovor. 1878. I'vhdphord idiota I'rovanclicr. 1881. Vrinliphora idcutidon Thomas. 1882. XemalHH idiot us Kirhw JJst Ilym. Hrit. AIuh., i, p. 110. 1883. Pristiphont idiota Provanchcr. Faun. Ent. Can. llyni.. p. 182. 1883. Pi-istipltora idcntidem Saunders. Ins. InJ. to Fruits, ]). 373. Female. — Length 5 u m.; moderately robust; head with coarse, deep pi'nctnring; ridges on cither side of anterior ocellus rounded, nearly obsolete;; clypeus nearly truncate; antenna' slender, third joint very nr.ich longer than fourth, fourth and iifth subequal; sheath rather slender, rounded at ti]), with dense bordering fringeof hairs; claws with minvitc inner tooth; venation normal, except that the first cubital cross vein is wanting. Color black, sliining;j^J^4*etTS*and palpi, tegula'i, and central area of abdomen, latter mo'e or less interrupted dorsally, yellow ; legs yellow: femora usually brown basally and apically, especially on upper and lower margins, or brown witli sides reddish yellow; tips of ])osterior tibia' and tarsi brown; wings hyaline; veins brown. Male. — Agrees with female in stiuctural and colorational characters, except that the abdomen is entirely black. Antenna' are considerably stouter than those of the female, cylindri(;al, not at :\l cominessed. Many specimens of both sexes. New liani[)shire. (Colls. Am. Ent. Soc. and U. S. Nat. Mus.) 10. Pristiphora dyari new species. Female. — Length 5.5 nun.; vciy robust; head with coarse, dense ])uncturing; frontal ridge slightly elevated; fovea shallow; clypeus nearly squarely truncate; antt. Soc, viii, p. 3. 1882. XematiiHJoeiilariK Kirl>y. List Ilyiii. l>rit. Mus., i, p. 111. Female. — Len{>tU 7 mm.; robust; head coarsely punctured; vertex witli ridges about anterior ocellus i)resent, but rounded and indistinct; antennal fovea circular, shallow; clypeus squarely truncate, and with labruui ch)thed with rather dense and long, whitish hairs; sheath stout, with rather dense hairs ; first cubital wanting ; stigma three times as long as wide; claw tooth small and near apex, approach ii g bifid. Color black, shining, subsericeous ; labrum and tij) of clypeus pallid; outer half of angles of pronotum, teguhi', abdomen except two apical segments, and legs for most part yellow; extreme bases of coxiii black; tips of posterior femora, tips of posterior tibia' and their tarsi, brownish blat'k; wings nearly hyaline; veins, including stigma and costa, dark brown. M^ale. — Length o mm.; structurally as in female, except that the ridges of vertex are practically obsolete; fovea very shallow, almost wanting; antenna* com]»ressed, tapering; procidentia short, keeled, constricted basally. Color as in female, except that the abdomen is black above, bande- men except three termimd segments, and legs for the most part reddish yellow; outer lialf oi' posterior femora brown, anterior femorn slightly iiil'uscated basally; tips of posterior tibia', and their tarsi infus- cated; basal half of coxic black; bnsal plates tinged with rufous; wings hyaline; veins brown, costa somewhat paler; first cubital cross vein hyaline. One female. Mount Hood, Oreg. (Coll. Am. Kut. Hoc.) This species conies very . Pristiphora koebelei new specties. Female. — Length (J mm.; robust; head coiirsely and rugosely rcmgh- ened with little tubercles ; lateiiil ri. '2Uh (Cut., etc, j). SI.) 187H, Xemaliis hiriltntnn I'lovaiiclicr. Niit.Ciiii., x.^i.-'fi. 1883. Xemnfus Uiviitdlim I'roviiiiclicr. Finin. Kiit. (;;in. Ilym.. ]). ISS. Female. — Length <>.") uun.; i-obust, shining; head densely and (inely tubereulate-granulate, opaque, clothed with sericeous h.airs; clypeus nearly squarely truncate; ocellar and frontal ridges almost wanting; antennal fovea shallow, tapering antericnly, indistiiu^t; antenna' very robust, last four joints tajtering somewhat suddenly, third to fifth joircs subequal, more robust; sheath not very broad, obtusely pointed, scopa not very long but dense; cen^i short, ta])ering; (;la\vs with rather long inner tootls; intercostal anterior to basal and almost at right angles with COP. ta; wings otherwise normal; lirst transverse (nibital wanting; Ktigma ovate at base, tapining regularly to apex. Color in general reddish orange; clypeus, labrum, bases of mandibles, inclined to pallid; head above clypeus and antenna', stripe on lateral lobes of mesonotu n and sometimes on anterior lobe, scuti^Unm, metanotum, lateral dorsal angle of first segment, narrow stripe along center of dorsum, termi- nating on next to last segment, lower third of mescpimera, and sheath black or dark brown; tips of hind tibia' and the hind tarsi strongly infuscated; veins, im hiding stigma and costa nearly to base, rominent ridges about anterior ociiilus, somewh.it rougheiMMl, with minute tuber- cles; frontal crest ol)S(»l('te, fovea v«'ry shallow or nearly wanting; clypeus nearly truncate or very broadly and shailowly emarginate; pens tip, [(-•e]»t laws, lill^; for line fpted tibiii' Ibove jdjirk 'Knt. 121 antenna' slender, elonjjatc, joints slijihtly (Milaryed .it tips; second cubital liyaline; outor voins of discal cells of liind wings interstitial; pro(;identia broad, stronjily keeled; claws with minute inner tooth remote from apex. Color bla(;k, shining'; clypeus, mouth ^ arts, pro- notum, teguhi', legs, central area of abdomen ventrally, pale yellowish; 51 pica! half of i)osterior tibia* and their tarsi brownish black; wings hyaline; veins light brown. Three males, two without locality labels and one collected in North Carolina. (Coll. Am. Ent. Soc.) 1 0. Pristiphora luteola Norton. lsr>7. Xematus hiteohis Norton. '. , ana. Am. Knt. Sor.. i, )». 20(). (t'nt., etc, )>. fi2.) 1S7S. XcmttUm hileolits Provanclier. N;it. ('an., x, j). .^'i. 1S8H. Xematim hileoht» I'rovancli«r. I'mm. I'nt. Can. iryni., j). 1H.">. 1H!I,S. Nemnina htieohis McfiiHivray. Can. Ent., xx v. ]i. L'lW. Male. — Length mm.; rather slender, elongate, shining; head and thoiax strongly i>unctured; clyi)eus squarely tiuncate; oc<>llar and frontal ridges subobsolete; antcnnal fovea very shallow, broad; an- tenna* very robust, fattened, tapering, longer than head and thorax, joints ,'} to 5 subequal; venation normal, except that intercostal vein is nearly at right angles to costa and the iirst transverse cubital is snbobsolete or hyaline; upper discoidal cell of hind wings .sometimes extending more than .\ its length beyond the lower cell; inocidentia very broad, slightly excavated at tip, not in*ojecting; hypopygium dis tinctly notched at tip; claws with rather large, prfuninent inner tooth. Color black; clypeus, labrum, bases of mandibles, palpi, legs for the most part, pronotum, and teguhe yellowish ferruginous; tijjs of ]Kiste- rior tibia' and tarsi fuscous; veins, including costa and stigma, except base of latter, brown. Two males. Illinois and Massachusett.^. ((/oll. Am. Ent. Soc.) 17. Pristiphora occidentalis new species. Mah'. — Length 5 mm.; not very robust; head roughened; lateral walls about anterior ocellus entirely wanting; crest ])resent, rounded; fovea shallow; clypeus truncate; antenna' tapering, com]»ressed ba- sally ; procidentia broad, not piqjecting beyond seventh segm<'nt; claws with minute inner tooth near apex; second cubital cross vein present; third cubital cell quadrate. (3olor black, shining; clypeus yellowish; pronotum, teguhe, and legs reddi.sh yellow; posterior tarsi infuscated; wings slightly smoky; veins and stigma dark browMi; costa, yellowish; genitalia strongly infuscated, nearly black. Three males. Oregcm and Washington. (( ;oil. U. S. Nat. Mus.) IS. Pristiphora coloradensis new si)e(!ies. Male. — Length 5 mm.; not very robust; head loughened with miiuite tubercles; ridges about anterior ocellus wanting; crest indistinctly 122 raised; fovea shallow; elypens tiuiuate; antenna* stout, tapering, foiuth. joint lon}i«!r than third; lirst transverse cnbital wanting; claws with niinnte inner tooth. Color black, shining; distinct pubescence on pleura; apex of (rlypens, labruni, extreme angles of ])ronotum, teguhe, and legs for the most part yellow; coxa* black basally; posterior tibia' at tips and their tarsi infuscated ; wings hyaline ; veins light brown ; genitalia yellow. One male. Coh)rado. (Coll. Am. I'^nt. Soc.) XVII. Genus GYMNONYCHUS nov. gen. (From yvixva^. iiiikrii, ami limf, <^liiw.| Hoit.!il with both nvMirreiit nervwrcs; liiuceolalo <'<'ll petiolate; Htinma ovate; tip of elyi)ens more or less einarninate; ])entaf;on;il area of vertex indisHiietly outlined or wantinj?; (ilaws sini])le, without inner tootli; shoath of female sim])le, ohtusely ])niiited at tip. This genns is separated from the pr(>(reding, J*risti2)hora,hy the jmsses- sion of a simi)le claw, without inner branch or tooth. The type of the genns is the species designated as californlciis. Examination of the si)ecies of J'ristiphortt indicates also that appoKlicnIafns Ilartig (=//ro.9- Nithiria' Walsh) falls in this genus. These two specMes are very impor- tant ones economically, the latter being a. well known enemy ol" the gooseberry and the former repoites of ])roiH»tum broadly yc'low. Clypeus and labrum black I. californiciis n sp. CIy]>(Mis and labrum p.ile 2. pto.riinaliin Norton. Homewliat loss robust; ]trouotuiii unieolorous. Color blatik !>, tippnidiciilofiiK Harti};'. Color resinous, inclined to reddish 1. rtsinieolor i\. sp. 1. Gymnonychus californicus lunv species. Female. — Length 4.") mm.; veiy short and robust, shining; head densdy punctured, rather opaque; clyiiens very slightly emarginate; frontal crest wanting or very slightly indicated; antenna' very short, not fis long as head and thorax, liliform, third Joint longest; intercostal nearly at right angles with <;osta. interstitial with basal; venation other- wise normal ; stigma short, broad, ovate at base ; apex of costa strongly thickeiH'il; sheath broad, slightly emarginate beneath and acuminate at tip; claws simple. ( 'olor bhuik ; angles of i)ronotum, tegula', trochan- ters, apices of femora (particularly anterior pair), tibia', and tarsi yellow- ish ferruginous; the posterior tibia' and tar.si partic^ularly somewhat infuscated; veins, including stigma, and (^osta, dark brown; wings hyaline. 123 ping, |la\vs 3e on fiila', lerior lowii : Eleven females, one collected at Bro(!kp'»rt, N. Y., the others Ined from larva' found on pear trees near SaiTainento. (Jal., the adults issu- in}«- in March. (Coll. U. S. Nat. Mus.) This sawrty was reported by Matthew Cooke to be very injurious! in 1881-82 about Sacramento, Cal., and in adjoining? counties. It feeds on the leaves of i)ear trees, skeletoniziuj^ them more or less, somewhat after the manner of the common cherry and pear slujj. It forms little brown cocoons about the base of the tree, in which the larva* hibernate, the adults issuingearly in March. A second brood, apparently, was obtained in the latter part of A])ril, indicating the probable occurrence of several annual broods. Mr. Koebele also sent specimens of this sawtly from Na- toma, Cal., re])orting it to be most destruct ive to pear trees in that region. He also ]H)ticed the same species ovipositing on ]>ear trees at Santa Clara. If disturbed, the parent insect falls to the ground and remains Fm.W.— Oijmnoniicfiuncalifninieiis: a, l'cinalt<; 6, Literal view of tip of nbdomon, showing slieiilli aud ctTcus; c, (^law and imlvilliiM— all cnlargt'd (ori;;iiial). motionless for a time, with the. antenna' and legs bent closely to the body. The chara('teristi(! features of the adult insect are indicated in the accompanying figure (tig. 10). It is i)rol)able that this is the unde- termined pear sawlly referred to by Dr. J. A. Lintner as being very injurious in the Hammond nurseries, Cleneva, N. Y., May L'O, l.S!>t. (2nd llept. N. Y. State Entom., 1885, p. 5.) 2. Gymnonychus proximatus Norton. IHGl. XemafiiH proximntim Norton. I'roc. l?ont. Soc. Nut. llifli.. viii, i>. IfiO. 18(i7. Nematiia prtKrimatna Norton. Tnins. Am. Knt. Soc, i, jt. I'OL'. (Cat., etr., p. M). 1878. Xematii8 2)roJ''tmatiiii Vriyvnnchor. Nat. Can., .\,]>. i"). 18H!{. Xcmatns 2)ro.vhHatus Provanclier. Fann. Knt. Can. Ilym., p. 185. ]\lal€. — Length 5.5 mm.; rsither slen«ler, shining; head and thorax punctured; clypeus stpnirely truncate; c.est of head rounded, almost I V 124 wanting: antennal fovea indistinct or wanting, at most very shallow; antenna' not very robust, tlattenod, tapering, .joints .i to a snbequal; venation normal; stigma not very robust, tapering; procidentia very broad, obtuse, strongly keeled; liypopygium broad, rouiuled at apex; claws without inner tooth. Color black; clypeus, labrum, and mouth parts pallid; angles of pronotum, teguhc, more or less of apical half of fi'mora, the anterior tibia' and tarsi, and the basal two-thirds of tibia* yellowish; more or less of l)a8es of femora, esjiecially of hind i)air and apices of hind tibia' and tarsi, and the tips of anterior tarsi brownish black; veins, including stigma and costa, the latter nearly to base, dark brown. One male. Canada. (Coll. Am. Rnt. Soc.) 3. Gymnonychus appendiculatus llartig. 1H2?>. 7VJ»/ij}/iora j»rt//i/'f« Lepelcticr. Moiiy;r. Tenth,, p.«50. lH;>r». Nemiiiiinjlt(r'q}tn\tii\\]\um\. Coiisiwct. Tt^ntli. Scan., ]).!>. 1.S37. Xemnfiix npjyi'tKliriilatiis Ilurtifj. Kani. JMat. lloltz.. p. 202. 18fir». I'ristiphora (jroxHularuv W.al.s]i. rnict. Knt., i, pp. 117-12.5. 18. 18157. PriHtiphora (iroasiiJnrin' Norton. Trans. Am. Knt., Soc. i. ]>. 77. 18(17. I'riatqihora (iroHnnlavi(f WnXHh. Pract. Knt., il, ]). 121. 18()8. I'l-iitfijihom riifipeH Fitch. 12th Ropt. Ins. N. Y., p. 908. ISti!!. I'rint'qthoro grossithirhr Walsh and Riley. Am. Knt., ii, i>i>. 12-22. 1870. Printiphora firoHfiiilarhr PackarHuIarhv Riley. 9th Rcpt. Ins. Mo., pp. 23-2fi, 1877. I'ristqyJioiii (ironnuhiritv Packard. Dth Rcpt. V. S. Geol. and (ioog. Siirv., 187.">, p. 787. 1877. l'rintiphoia f/ronsiilnriiv Glover. Rcpt. U. S. Dcpt. Agr., p. 92. 1878. Pri8tij)hoya (iroxaiihivUv Provancher. Nat. Can., x, p. ~^(\. 1880. Pristiphora (jrosHiilnriiv rvo\a\u'\\ev. Nat. Can., xii, p. 126. 1880. Prixliphora firoxsiiJariw Thomas. r)th Rcpt. Ins. 111., p. (59. 1880. PriHtijfhom riifipex Thnma^. .".th Rcpt. Ins. 111., p. 70. 188,3. Pr'istiphorn (/rosxulariw Provancher. Faun. Knt. Can. Ilym., ii, p. 182. 188;?. Prisliphora groHHuhir'uv Stoddard. Am. Kncycl., i, p. 1.3.5. 1883. Priatiphora (iroxHuhirUr Saundcn-s. Ins. Inj. to Frnits, p. .313. 1890. Prixtiphora appvudmilatn Konow. Dcntscb. Ent. Zeit., xxxiv, p. 217. Female. — Length o mm.; rather short, robust; head imrrow, not nearly so brosid as thorax; clypeus truncate; vertex smooth, shining; frontal crest nearly obsolete; antenna' slender, iiliform, scarcely longer than head and thorax, joints decreasing in length apically from third; antennal fovea very minute, circular; shefith scarcely project- ing, tapering, rather densely clothed with hairs; claws simple; first cubital cross vein entirely wanting. Color black, shining; teguLT, and legs light yellowish; bases of coxa' brown; anterior femora basally infuscjited; antennae fulvous or light yellowish beneath; wings nearly hyaline; veins and stigma yellowish brown. In some specimens the hind femora are also strongly infuscated. low; (iial • rcry )ex; )iith If of |il)ia> ' and jnish flsirk Seveu females. New York, Illinois, Missouri, and Colorado. (Coll. U. S. Nat. Mus.) 4. Gymnonychtts resinicolor new species. Female. — Lenjrth 5 uiii'.; moderately robust; elypeus sijuarely trun- cate; vertex smooth., shining; antennal fovea and ocellar basin obso- lete; autenme slender, scarcely tapering, third and fourth joints sub- ecjual; sheath not proiluced, rounded at tip; cerci very robust, short, acuminate; claws simple; intercostal vein nearly interstitial with basal; stigma broad, nmnded on lower margin. Color dark resinous, inclined to reddish; spot about ocelli, center of anterior lobe of mesonotum, most of metanotum, and the center of dorsum of abdomen brownish black; antenna' brownish above; wings clear; veins yellowish brown; stigma lighter, almost hyaline. One fenuile. Fort Wrangel, Alaska. Mi-. 11. F. VVh-kham, collector. (Coll. U. S. Nat. Mus.) XVilJ. Genus DINEURA Dahlbom. Dineiira Dubl., Coiispect. Tenth. Scuiul., p. 13, 181^5. SI'ECIES. amcricrtna Provaucher. Nat. Can., xiii, p. 292, $,1882. (Canada.) lateialin Norton. Trans. Am. Eut. Soc, I, p. 210, 9 , 18G7. (Maine.) linita Norton. Trans. Am, Eut. Soc, i, p. 210, 9 , 1867. (Maine.) litura King. Ma<^. Ges. Nat. Fr. Berlin, via, p. 83, 9 , l^H ; Norton. Trans. Am. Eut. Soc, I, p. 240, 1867. (Georgia.) luteipcn Cresson. Trans. Am. Ent. Soc, viu, p. 11, ' spocios Imve eitbcr beeir lost or are inacces- sible. The latter api)lies to the species tlescribed by William F. Kirby, the types of which are in the IJritish Must'iin. It is probable that Eschscholtz's two si)ecies are not now obtainable. Of the other species, one each described by Say, flitch, and Walsh, and the rest by Norton, the typo specimens are lost and I have been either unable to recoj>nize them from the rather inadei|uate descriptions or to secure additional specimcp:; representing them. A few of these species are so character- ized that it is possible with tolerable accuracy to refer them to genera, and in such cases 1 have indicated the i>robable genus to which they belong. Some of those referred to Pteronioi may, however, belong to Amnuronematus, and some of those referred to Pachynemattis may belong," elsewhere. The descriptions by Kirby are so in,aderopcrly refer them will necessitate an examination of the types themselves. The species the genera of which can not be determined, are all given under the old term Xcitiotus, though probably n(me of them belong in this genus as now restricted. The original descriptions are ciuoted without change, and, other than those of Kirby's species, are taken from Norton's Catalogue. INDKX TO Sl'KCIKS. jihbottii Kirby 5 22 ciilais Kirby 9 12 ciistanous Kirby 9 13 era88U8=obtn&u8 IJ) cxtriiuous Kirby 9 1 1 f!ill!ix= nortonii ") fur Walsli (? 1 hiidsoiiiciis Norton 9 - incoiispicuiis Kirby 9 1"> liitfiruliH Norton 9 <$ longicornis Eschsclioltz ( 9 l'> lonynlieornis Norton i3. XematKn fur Miirhiti. I'roc. Knt. Soc, Wasb., iii. p. 2t!7. Male. — Leni?th 0,39 incb ; br. wing 0.38 incli ; bl.ack; bead oitatpie, very ininiitcly and closely punetnate, rngosc; clyjx'ns, labrnni, tlie extreme tip of tbe cbeek, and tlie base of tbe mandibbis all dull L^roenisb wbite; clypens emarginate in a circuhir arc of ab(»ut 15 , witb a small tubercle in tbe middle of it.s anterior margin ; labrnm fully as long as wide, its tip rounded; antennn' bliick, four-liftbs aa long as body, ratber more compressed tban is usual in males, fourtb and tlftb joints eipial in lengtb, tbird sborter by onts-fourtb; tborax <»pa(|Uo, very minutely rugose, snbpol- 127 yii fces- bliut 3ies, H u 17 f) 9 18 19 (i 7 10 20 21 islit!(l oil tho jiectiiH; a i>al»' siilitriimniilar tiilivrclu mi t\w, latural inur^in i>f the hlaik, NiihpoliHlu'il, hasal plate; aliiluiiicii Kubpolislu'tl, lirif^ht tulvo-riiriiiiH, tli« liasal o«lj;e of joint 1, next tli« basal niciiiliraiif, which is whitish, cluiideil with Iilack; fjeuitals ohCiiMCiitml; U'lrn hhick; wiuys subliyaliuc, slightly tiiigt-d with rMli,!,'iuou.s; veins uikI sti^juia black. hock Ibluiul, 111. Hue iiiulo liroil March 29, from au ohl siibpiMliinch-d spherical r. wings 0.70 inch. Female. — Antenna' less than half as long as the body. Joints cylinoiiCiil, somewhat euhirged at tip, third and fourth of equal length; sutures at sides of ocelli deep; ocelli iu a triangular basin; nasus very slightly emarginate; orbits, space about antenna; and mouth beneath, tegr.he, anterior angle (a black lino iu middle), and the venter whitish, tho latter with a row of black spots on each side forming au inter- rupted black lino; sciitel large, produced behind a slightly raised angle; legs ost. Soc. Nat. Hist., \ iii, p. 15S. 1807. Xemal ua luHijulivorniti }iortoi>. Traus. Aiu. Eut. Soc, i, p. lill. (Cat.,ct(5., p. 70.) Black; orbits, lace l»elo\v antouiiii-, tcgul;i', anterior angle, pleura (excei)t bhuk spot on female), tlie whole body beneath, anil legs whitish. Length 0.20; br, wings 0.51 inch. Female. — Hody rather l(»ng; antenna- black, more than two-thirds the body, slen- der, third ami I'oiirth Joints etjiial ; head rather smooth; sutures at sides of ocelli distinct; lower ocellus iu a basin, which is smooth and shining, obovate, with dis- tinct edges; iiasus angulate, emai'ginate; labrum emarginate; a spot ou vertex from antenna' to sununit, anil the back of head black; remainder pale; a slender ridge runs through the groove ou anterior lobe of thorax; the teguhc, anterior augle, ]deura, ami whole body beneath whitish, except two black spots on pleura, the ante- rior one large and lunulate; scutel black; sutures of abdomen iudistinctly pale; legs pale, with the apical half of hinder femora and tibia- and their tarsi blackish; inner tooth of claws large and near the tip; wings hyaline; stigma full; uervures and stignui piceous; base of stigma and costa pale. Male. — Auteuna- fulvous beuoath, tiiird Joint shorter than fourth, curved at base; a straight, black lino r.inler the anterior wings; tips of jtosterior tibia- blackish, their fenuira pale; stignui color of costa. Iowa (Say), Coinieetieut, New York, renusylvania, (Jreat Slave Lake, Hudson l$ay ferritory. This specie.s seems to be allied to conitlll ii. si!. 5. Pteronus (?) nortonii J)alUi Tone. 1807. \cmalna J'allax Norton. Tra.is. Am. Lnt. Soe., i, p. 11)8. (Cat., etc., p. 00.) 1894. Nematits nortonii Dalla Torre. Cat. Hym., i, p. 1'40. Black ; mouth, cheeks, apex of venter, aud tibia- in part rcddiali white; a black line down the tibia- above; body sk-iider; length 0.18 to 0.20; br. wings O.4lto0.18 inch. Male. — Shining black; body slender; anteuna- rather long and slender, ferruginous beneatli; nasus hardly inciirveil aud with nutiith below; lower half of cheeks aud a|>ex of venter yellow red; legs at base black, below tlie base of femora yellow red, with a blackish liiu; er side; inner anterior tibial spur stout; inner tooth of claw nearly as large as outer; wings perfectly hyaline, uidesceut; stigma somewhat rounded al)ovc and with the costa palegreeiiish. Labrador (A. S. Packard, jr.). Two males, (>. Pteronus rufofasciatus Norton. 1807. AVma/H» M»/(>-/V(.sci((^(» Norton, Trans, Am. I'.nt, Soc, i.p, 205. (Cat., etc, p. 07.) Black; a band ou the middle of abdomen and most part of legs rufous; wings smoky hyaline; length 0. HI ; br, wings 0,70 inch. /'Vhi«/('.— iiluck ; body long and moder ^dy stout; aiitenua- alxmt two-thirds the length of body, slender, eyliiidrical, third Joint but little longer than fourth; head dull, with coars)^ etwilliient ])uuctures; nasus coarsely punctured, deeply channeled ac'oss the middle, aiigulat(s emarginate; lidge of labrum inciirvcil; outer orbit uud a spot opposite (xti;!!! mi oiudi sidi*, labrum, and palpi rufous; upper half of anterior angle and basin on eiich side of scutel rufous; abdmiien, except the biisiil plates and three apiiNil sc^gments, chestnut red; logs tin- s.inio cidor; coxa-, except at tip, black; anterior inner tibial spur stout| apparently hi lid; inner claw tuoth lurge; wings smoky hyaline, uervures pieuoiis; stigma and costa pale. Mtiekeuisic Kiver, Hudson May Territory (K', Keiinieutt). 129 Itc,., li;gs ilcu- ;olli |dis- I'roiu '«!«« nte- mer au'l 7. PteronuB (?) satkatchewan Norton. 1867. yematua aatkatvhewaii Norton. Truus. Am. Ent. Soc, i, p. 20(). (Cat., etc., p. 62.) 1878. Xematna natkatcheivan Provanclier. Nat. Can., x, p. 56. 1883. Xematus satkatchewan Provanclier. Fann. Knt. Can. Hyni., p. 187. li!ack; tegwla- black; lireast rufous; legs mostly yellow red; wings liyjiline; length 0.;;*<; br. wingH 0.76 inch. /•'— No. 3 — u 130 red, the two apical segments blackish; au indistinct, piceous, perpendicular spot on pleura near breast; coxiu and trochanters whitish; remainder of legs rufous, paler before, except the posterior tibise and tarsi, which are blackish; hinder iibiiP some- what swelled; inner tooth of claws very obtuse, hardly visible; wings hyaline, faintly smoky ; stigma dark brown. Maine (A. S. Packard). One male. 11. Lygseonematus (?) monela Norton. 1867. Xematua monela Norton. Trans. Am. Ent. Soc, i, p. ItW. (Cat., etc., p. (iO.) 1878. Nematua monela Provancher. Nat. Can., x, p. 51. 1883. Xematua monela Provancher. Faun. Ent. Can. Ilym., p. 181. Black; mouth, spot on cheeks, teguhe, collar, and venter pale; base of eoxic and of femora and tips of hinder tibiic black ; length 0.20; br. wings 0. 18 inch. Male. — Black; body slender; antenna- slightly compressed, third joint hardly as long as fourth; lower ocellus in a small basin; nasus emarginate; edge of nasus, labrum, and spot at base of mandibles white; teguhu, two edges of anterior angle, and apex of venter yellow red; legs yellow red; trochanters white; base of coxie, base of femora and a line beneath extending nearly to tip, apex of posterio-- tibia', and their tarsi black; inner apical tarsal spur blunt; inner claw tooth small and widely separated from outer; wings hyaline; stigma and costa pale, waxen color. Labrador. Two males. (Mr. Packard.) 13. Nematiis Calais Kirby. 1882. Xematua calais Kirby. List, Ilyni. Brit. Mus.f i, p. 144. Exp. al. 8 lin. ; long. corp. 4 lin. Female. — Head and thorax black, linely punctured; pleura and pectus shining; abdomen testaceous, the last two segments blackish; legs testaceous, four IVont femora blackish at base, i.. triiiediate tibiae with a dark line above; hind tibia- and tarsi blackish, the former rather wide'-.od and flattened; wings hyaline, with piceous stigma and nervures; fore wings clouded in the middle, and with apparently only three submarginal cells, the two first being divided by a white norvure. Arctic America, Mackenzie River. 13. Nematus oastaneus Kirby. 1882. Xematua caataneua Kirby. List llym. Brit. Mus.,i, p. 147. 1893. Xematua caataneua McdiWivriiy. Can. Ent., xxv, p. 2H7. Exp. al. 9 lin. ; long. corp. H lin. Female. — Chestnut color; head, nn-sothorax, and pleura darker; antenuii-, a large B(iuare spot on the vertex, a spot in front of the thorax, and the pectus black; an irregular spot covering the hinder half of the sciuclliuii, the postscutelliini, a por- tion of the flrst segment of the abdomen, and extremities of hind tibia- atid hind tarsi dusky; wings hyaline, fore wings slightly yellowish; stignui and nervures piceous. Hudson Bay, St. Martin's Falls, Albany Kiver. 14. Nematus extraneus Ivirby. 1H82. Xematua ej-lianeua Kirby. List ilym. Brit. Mus., i, jt. 142. Exp. al. 7 lin. ; long. corp. 11 lin. Female. — Testaceous; two basal Joints of antenna-, a large irregular B]>ot on ver- tex, and thn-e large spots on t\ui th(U-ax black; alxlonuMi witli a black band in the middle, covi-ring most of the three first segments and e\))an(l(Ml on the three following ones, ceasing with segments 7 and H, on which it is tiof expanded; extremities of hind tibia- and of joints of hind tarsi sliglitly nuirked with Itlackish abov»-; wings hyaline; costa and stigma ]»ale yellowish ; three submargiiuil cells. Hudson Bay, St. Martin's Falls, Albany Kiver 15. 18. 131 )t on lialur lotne- Uine, kfiO.) |i' and 15. NematuB inconspicuus Kii-by. 1882. Neinatiis iiiconsjticuitH Kir'>y. T^ist Hyni. Brit. Mus.. i, p. 141. Exp. ill. 8 lin. ; long. corp. 4 lin. Female. — Ileiul, autennn', thorax, and pectns black; mouth and prothorax yellow*- ish; abdomen black above and testaceous beneath, with a narrow border on the Bides and at the back of each segment; legs testaceous; wings hyaline; costa yel- lowish; throe submarginal cells. New York. IG. Nematus longicornis Eschsclioltz. 1822. Xematiis longiconm Eschscholtz Eutoniogr.,p. 98. 1823. Nematus loiigicornia Eachseholl/. Nat. Abh. Dorp., i, p. 149. 18(57. NemaUia lomjicornis Norton. Trans. Am. Pint. Soc, i, p. 202. (Cat., etc., p. 64.) lilack, with the margin of tergum fuscous ; the venter and legs pale, posterior femora black, costa of wings pale, stigma brown, head black, labrum yellowish, eyes clear gray ; length 2.} lines; antennic longer than tlie moiety of body, setaceous, black; corselet black, its anterior border forming a yoUowisii collar; abdc nen wido, Hat ; back brownish ; lateral margins of a clear yellow ; venter yellow ; wings longer than the body, narrow, transparent; costa yellow ; stigma iv.\ nervnrcs brown ; three discoidal cells; h^gs yellow,* posterior femora black-brown in the middle. Isle of IJualaska, Russian America. 17. Nematus neglectus Kiiby. 1882. Nemutua nenleclns Kirby. List llym. Brit. Mus., i, p. 147. Exp. al. 8 lin. ; long. corp. 4 lin. Female. — Head and thorax black; mouth and prothorax pale; a more or less com- plete testaceous ring around the eyes; sides of jtcctus sometimes with a dull rni'ons spot; abdomen testaceous, llrst two segments bla<^k .it base above; legs testaceous; front femora black at base ; middle femora and hind legs black; hind tibiae rufous beneath; wings hyaline, male with three and female with four submarginal cells; stignui yellowi.sh. Hudson Hay, St. Martin's Falls. 18. Nematus obsourus Norton. 18r)l. .Vtmatiia ubacunia Norton. Proc. Boat. Soc. Nat. Hist., viii, p. 100. 1867. Xemat na ohacnnia ^iortim. Trans. Am. Ent. Soc, i, p. 20,{. ((."at., etc., p. 65.> Dull black; teguhe. base of abdomen, and knees indistinctly ferruginous; length 0.25; br. wings 0.58 inch. Female. — Black, pubescent; third Joint of antenna^ a little hmger than fourth; clypeuscrenatc; labrum brownish red, shining; mandibles rufous atti]i; palpi pale; a longitudinal groov(< upon scutelluui; basal membrane, sides of tergum, knees, and front of tibia) indistinctly ferruginous; abdomen stout; wings faintly clouded; stigma dull fuscous; costa black. Massachusetts. 19. Nematus obtuBus Kirby. 1822. AVmo/«« c»'fls««8 Eschscholtz. Entoniogr., p. 213. 1823. NematiiH rraaaua Eschscholt/,. Nattirw. Abh. Morp., i, p. 119. 1867. .\vmaliiH vraaaiia NorUm. Trans. Am. Knt. Soc, i. p. 213. (Cat., etc., p. 75.) 1882. Xemaliia obtiiaiis Xirby. List llyin. Brit. Mus.. i. p. 148. Black; sides of the head, lines mu the thorax, scntr/llum, and pleura chestnut; tibia- pale; length I liiu's. Body thick; head black in the middle, of a nut brown mi the sides; parts <>f the 132 mouth yellow: antenna^ longer than the moie^ - of the body, filiform, black; border of the corselet brown; two btngitudiual lines on the thorax; scutel and iihe greater part of the thorax of a chestnut brown; abdomen convex, shining black; wings longer than the body, wide, transparent; stig.na and costa yellow ; nervures brown ; marginal cell simple, extending almost to the tip ; three discoidal cells ; legs yellow ; a long black spot under the anterior femora; posterior femora black, at the extrem- ity yellow. Isle of Unalaska, Russian America. Not seen (Norton). 20. Nematus suratus Fitch. 185fi. Nematus suratus Fitch. 3d Kept. N. Y. Agr. Soc, p. 315, No. 94. (3rd Kept. Ins. N. Y., p. 68.) 1861. Nematus suratus Norton. Proc. Bost. Soc. Nat. Hist., v iii, p. 159. 1867. Nematus suratus Norton. Trans. Am. Ent. Soc, i, p. 196. (Cat., etc , p. 60.) Black, with foi.'r transparent, slightly smoky wings; mouth, cloud-like spot on the shoulders, edges of abdominal segments, and logs livid white; the four anterior thighs being black upon their undersides and the hinder pair wholly black, except at their base; length 0.25 inch ; to the tip of wing 0.30 inch. New York. Not seen (Norton). F^od-plant, cherry. 21. Nematus trifiircatus Klrby. 1882. Nematus trifurcatus Kirby. List Hym. Brit. Mus., i, p. 148. Exp. al. 8 lin. ; long. corp. 4 lin. /'em«?c.— Testaceous; antenna' black; a largo square black spot on vertex; three large black spots in fr >nt and on the sides of the thorax, sometimes nearly conlluent; hinder half of the scutellum black ; all the segments of the abdomen except the last (beyond wliich the black tips of the saws and sheaths project) are more or less broadly banded with purplish black in the middle; sides and under surface testa- ceous; fectus black in the middle; a black lino down tlie hind legs; wings hyaline; nervures piceous; stigma yellowish; three submarginal cells. This species appears to be allied to N. crassus Esch. {ohiusus Kirby), irom Alaska. Hudson Bay, St. Martin's Falls, Albany Uiver. 22. Nematus abbotii Kirby. 1882. Uijitola'pus abhotii Kirby. List Hym. Brit. Mus., pp. .324-325. Exp. al. 11 lin. ; long. corp. 6 lin. /'Vmrt/c— Blue black, shining; third segment of abdomen testaceous on the sides, and less distinctly so above; wings irideseeiit, clear hyaline toward the base, and more dusky beyond, with blackish nervures. North America ((looigia). Probably from Abbott's collection. rtler ater ings |)wn; |iow; rein- lept. 60.) tlie erior ccept INDEX TO GKNERA AND SPECIES. Pagi). abbotiiCNematiis?) 132 al)(l<>niiiiali8 (Paniatua) 90 Clmlins 19 cly peatuH ( PachynumatuH) 102 C()loratlen8iH (ParliynoniatuH) 101 co1ora4lnn8iH (Pri8tiphora) 121 rolorartenHiH (Ptcronus) 52 coniHt4M'ki (AniMurononiat\i8) 77 roncolor ( Ainaiironnnaliia) 77 cooki (Aniauroni!niatii8) 79 O0(|uillut(i (AniaiiroiieniiitUB) 84 Pngo. Cornell! (Pteronua) 65 I'orniger ( PachyneniatuH) 104 cory1ii8 (Pteronus) 57 crasana -- obtusim (Nomatna) 131 cressoni (Pontania) 26 Cro'sus 86 ilecoratUH (Pteronus) 73 (leHinotlioidea (Pontania) 40 rliniinockii (Paebynejnatus) 94 Dinoura 125 tliaeolor ( AniauroneniatuR) 82 dorsivittatus — vertcliratiis (Pteronus) 68 (lubius (Pteronus) 74 dyari (Priatiphorn) 118 dyari (Pteronus) 58 cdwardMii (Ptcronus) 63 ericlisonii (Lygtponematus) Ill ery throgaster ( Pteronus) 57 Kuura 20 excavata ( Pontania) 30 excavatui* (Amauroncniatus) 85 extenaioornis (Pacbynematns) 96 extraneus (Neniatus ?) 130 fallax - -- nortonii (Pteronus 7) 128 Havii)e8 -- appendiculatua (ftymnonyobns) . 124 foveatus (Pteronus) 55 fraternalia (Heniiv)iroa) 125 fulvicrua (Pteronwa) 58 fulvi|)e8(AniauronenuituH) 81 fur (Aniauroneniatua.') 120 fylesi (Pteronus) 54 graciliH (Aniauroneniatua) 78 gracilis (Pontania) . , 39 graniinis ( Pacbynematua) 100 gregarius (TriclilocanipiiM) 20 grosMularia' --- appendiciilatus ((Jyniiiony- cbus) 124 (lyiuiionychuH 122 barringtoni (Ptcronus) 53 Iloniicbroa 125 Holcocnenic 87 boodi ( PachyncnialuB) 104 hoodi(PrlatipIiora) 119 bospcs poiuuni (Pontania) :i6 budsonicus (Ptcronus/) 127 budsoiiii (Pteronus) 59 budaonii niagniis — budsonii (PteroniiH) 09 liyalina (Pontania) 37 byalinua (Ptcronus) 07 Hy])olicpus 132 idcntiduni idiota (Prialiphora) 118 idiuta ( PriBtlpliora) U8 134 Page. iticonHpiciinuH ( Netnatua U 131 infiimatus (PaohyiK'nialus) 107 inqiiilinnH — ileannMUoiil<'.s(roiitani;i) ;. 40 intogor (IMeroims) 69 iridesrens (Pteron\i8) 72 isoincra^^ pectiniconiis (Cla<'.MiB) 19 Jocularis (Pri8tii)lioi'a).4 119 kiiicnidi (Pontatiia) 33 kincaidi (Ptoroiins) 55 koeliclei (Pachy iieniatus) 108 kcMiboU-i (Pristipliora) 119 koebclei (Pteronus) 71 labradoris (Prislipliora) 115 lata (Prlstlphora) 116 laternlif) (I)inoiira) 125 lateralis (Pteroniia .') 127 latifasciatns (Ptoronua) 50 laticiiliis (('rii-aiis^ 86 latitaraus (Cnrsiis) 80 latus (Pteronus) 48 Leptopus ; . . 18 limbatiis (Ptcroiins) 49 liiK-atiis (Amauroiieniatna) 83 linita(Diiii'iira) 125 litura (l)in(Mira) 125 lonibardin (I'terrni s) 73 loiifiicoruis (Xcniatus?) 131 longicornis ( Pteronus) 72, 128 longulit'ornis (Ptfronus .') 128 lurulivcntris (Oampouiscun) (Europe) 18 luteipes ( Ainauroneniatus) 70 lutt'ipt'8 (Diuoura) 125 lutcoln ( Prist ii)bora) 121 lutfoterguni (Auiauront'niiilus) 82 lutpscona-- viniiualis ('rricliiooampus) 20 LyKa'oiicmatMs Ill magus ( Pteronus) 67 malaiuia (I'acb.vncmntuH.') 129 innrlattii (I'teroniis) 52 inarylandicus — oxtcnsicorniH (I'ao.liynema- tus) 90 nu-llinn (Poutania) 29 uii'ndii'ua (Pteronus) 69 Mossa 37 nuixicana (Kuura) 20 ui<'xi<'aiiua (Nematua) 88 Microucniatus 110 uiilitaris (Pterouus) 03 minntua (I'acbyneniiituH) 110 nu)Mil(> (Piintania) 43 luonela (Lypi'oucniatus?) 130 uionochronui (Pteronus) 74 nionti vagus ( Pachy nenuitua) 101 nnirt fcldtia' (I'ristipbora) 117 Ni-nial us 87 negli'ctus (Neinatusf) . i;tl uevadcnsis (Pat'liynnniatus) 110 ncvadensis (l>on(ania) 29 nigra (Enura) 20 nigra (I'risti)ibora) 114 uigricims (Iloniicliro:!) 125 nigrita (I'nntania) 27 nigritna (I'acbynrinatnH .') : . . 129 nlgroCenioratua ( Aniauroneniatns) 79 nigropectus (PiiobynematiiB) 103 nortouil (PleromiH?) 128 Page. notabilia — oriohsonii (LygH!onematna) 111 obscurtis (Xoinatus.') 131 obtusus (Ni-niatus !) 131 oceidentalis ( Paoby nematua) lOH occirtentalis (Pristipbora) 121 occulentalis (Pteronus) 48 ocreatus ( PacbyiieuiatUs) 95 odoratua ( Pteronus) 05 orbitalis (Amaurouematus) 8D orbi talis ( Euura) 20 oregonensis (Amaurouematus) 80 ovatus (Anopbmyx) (Europe) 18 PacbynemnKis 91 liacitica ( Pontaiiia) 35 paoiflrus (Pteronus) 49 pallicornis (Pontania) 27 pallida (Uinoura) 125 pallidiventralisr-palliventria (Pacliynema- tUH) 100 pallilrons (Pontania) 42 pallipea — appendiculntus (Itymnonycbus). 121 palli ventria ( Pacbynemal us) 100 parva (Pontania) 26 )iertinicornia (('!adius) 19 pectoralis ( Vmauronematiis) 81 pectoralis (Anoplonyx) (Europe) 18 pectoralis (Pontania) . 31 pergandei (Neniatus) 90 l)erturbans~a,ovinn (Euura) 20 piuguidoraum (Pterouua) 71 pisiiui (Pontania) 33 placenta ( Pontania) 42 pleuricua ( Pacby neniatus) 100 ])omuni (Pontania) 30 Pontania 20 pontunioidcs (Nematua) 89 populi (Pterouns) 09 I'riopliorus 20 Pristipbora 113 proximatua ((lymnonycbiia) 123 Ptoronua , 44 pubescens (Pacbynematus) 100 puuctulatus (Pacbynematus) 103 pyril'orniis (Pontania) 43 qucrcicola — pisuni (Pontania) 33 (liHTcus (Pteronus) 07 rapax (Amaurouematus) 78 relativa (Priatipliora) 117 resiuicida (Pontania) 30 rcainicolor (Oyinnouycbuh) 125 ribesii (Pteronus) 01 rlbia — ribeaii (Pteronus) 01 robinia' -r^ trilineatna (Pteronus) 06 robusta ( Pontania) 32 robustua (Paeliynomntus) 102 rufipos ( Amauroiu'matus) 78 rufipea ai>pcndb'ulatua (Oyninonychua).. 124 rufoclnet\ia (Pteronus) 50 rutblasciatua (Pteronus?) 128 rugulosa (Pontania) 41 ruralis (Pacliy nematua) 01 salicicola (Euura) 20 salicic.i.ia I'ulvicruH (Pt^-ronua) 58 aalicia dosuKMlioidea — dcamodioidca (Pon- tania) . 40 snUoia = fulvicruB (Pterouus) 58 { ■^ •1 Al ■',-.■'! 135 Page. salicis — iioclus (Euiira) 20 saliciaodoratus-wloratiis (I'tcronus) 05 salici.t-ovuiu (Knura) -0 salicis i)i8um = pi8um (Pontania) '•■''■i aaliciH-iiimiuiu ^imnium (I'oiitiiiiia) 3»1 satkatchewau (Pteronua .') 129 seuiinilus — fulvipes (Amauroneinatus) (?l similaris -triliiaatus (Pterouus) *>0 siinplicicornis (Prioplionis) 20 Biskiyouciisis (Pristipliora) 116 solitariM (Priopliorun) 20 Btifimatali8(Poiitauia) 30 stiKiiiatiis ( Pt eroims) "* BiiadiiH (Pacliy iieiiiatus) !>** subalbatus (Paeliy lU'uiatus) 105 siilphurea (Pontania) ■*• suniptus (Pacliyuematus) 129 .suratua (Nomatiia ?) 1''2 ayi-ophanta ( Prist iphora) 113 Ihoraciciis (I'achynfiiiatus) WB tlioracicus (Pterouus) W Pagf. tibialis = sycophanta (Pristiphora) 1 15 Tricbiocanipiis 20 tricolor (Ptoronus) 50 trifiircatiis (NfiiiatUH ?) i:i2 triliiieatiia ( Pterouus) 00 triiiiaculatus -" ribes-ii (Pterouus) 01 tritici (Pachyueuiatus) 100 trivialis — sycopliauta (Pristipliora) 115 trivittatus ~ uiendicua ( Ptoronus) 09 t rnncata ( Pontiiiiia) 'M unlrolor (Nouiatus) H** uu jcolor (Ptcronus) 72 vancouveroiisis ( Ptoronus) 70 ventralis (Pterouus) 50 vcnlricosuH - ribcsii (Ptcronus) 01 vcrtebratus (Ptoronus) 08 viminalls ( rrichiocauipus) 20 violaceipennis— concolor(AiuauroucinaluM) 77 vicinalis (Ptcronus) ■*'< Winnipeg ( Lyf{iconeraatus/ HI wrangeli ( Pacby uematuii) 109 Dt^'^ CC ^''-' ^r^.Y^7y/v