AMERICAN HYMENOPTERA. 25 



first recurrent nervure a little before the middle, under wing generally wiih 

 one middle cell; femora, tibise and abdomen, except basal segment, fulvo-fer- 

 ruginous; antennoedull testaceous beneath, slender, attenuated at tip, third joint 

 longer than fourth, which is equal in length with the fifth, terminal joint slender, 

 flattened; a deep longitudinal groove on each side of ocelli extending back to 

 occiput, which is acutely margined; clypeus transverse, broadly emarginate at 

 tip, labrum large; mesothorax prominently trilol)ed, the middle lobe deeply 

 longitudinally impressed medially; abdomen robust. Length .40 — .50 inch. 



Hah. — Nevada, California, (H. Edwards, Morrison). In this fine 

 species the neuration of both wings is exceedingly variable, the mar- 

 ginal cross-nervure is sometimes abbreviated, so that the posterior half 

 is obliterated, and specimens will doubtless occur with but one mar- 

 ginal cell ; the second submarginal cell sometimes receives both re- 

 current nervures, and occasionally the second and third each receive 

 one; the under wing has either two, one or no middle cells, and 

 sometimes the same specimen will have a middle cell on one side 

 ard none on the other. 



l,OPHYRUS Latr. 



liOphyrus lateralis.— 9-— Piceous; head and thorax thickly punc- 

 tured, covered with a rather dense very short pale sericeous pile; anterior 

 margin of clypeus, labrum, palpi and scape beneath pale; antennae about 

 eighteen-jointed ; posterior angles of prothorax, tegulse, and large mark on 

 pleura, pale; wings hyaline, slightly dusky at tips, nervures fuscous, lanceolate 

 cell with nearly straight cross-nervure; legs dull whitish or luteous, base of 

 coxae and femora except tips black; sides of abdomen with a rather broad 

 luteous line; middle of venter more or less pale. Length .32 inch. 

 Hab. — Georgia, (Morrison). 



liOphyriis Rileyi. — ?. — Luteous-yellow, head tinged with fulvous, 

 mandibles castaneous at tip; antennae black, eighteen-joinied, short, strongly 

 serrate, two basal joints pale; large triangular spot on middle lobe of meso- 

 thorax, stripe on side lobes and lateral scutellar region, blackisli; scutel- 

 lum coarsely pitted; wings hyaline, nervures brown, most of stigma luteous, 

 lanceolate cell with nearly straight cross-nervure, dividing nervure between 

 first and second submarginal cells incomjilete; femora, tips of tibiie and more 

 or less of tarsi tinged with fulvous; abdomen paler on sides and at base 

 beneath. Length .30 inch. 



i7«i.— Florida, (C. V. Riley). 



liOpliyrus fiilviceps. — f. — Head fulvous, mandibles piceous; antennae 

 about nineteen-jointed, black, scape pale; thorax generally black or brown 

 above, luteous beneath, sometimes the side lobes and scutellum are fulvous 

 or luteous, sometimes the pectus has a brown spot or line on each side; pro- 

 thorax and tegulse more or less luteous or fulvous; wings hyaline, beautifully 

 iridescent, nervures brown, lanceolate cell with straight cross-nervure; legs 

 luteous, femora, tips of tibiae and tarsi fulvous; abdomen black or brown, with 

 lateral margin and middle of venter luteous. Length .35 inch. 



Hah. — Nevada, (Morrison). 



TRANS. AMEK. ENT. SOC. VIU, (4) JA.NUAHV, ISSO- 



