No. 2312. NEW NORTH AMERICAN HYMENOPTERA—ROHWER. 217 



triangular in outline; supraclypeal foveae deep, oval, not connected 

 with the antennal foveae; supraclypeal area flat, opaque, trapezoidal 

 in outline; middle fovea large, shallow dorsally, deeper ventrally, the 

 outer margin triangular in outline; ocellar basin poorly defined, the 

 lower and dorsal walls obsolete, the lateral waEs reduced to narrow 

 line-like ridges, probably pentagonal in outline; postocellar line di- 

 stinctly longer than the ocellocular line; postocellar area strongly 

 convex, sharply defined laterally by elongate foveae, and anteriorly 

 by the well defined, curved postocellar furrow; antennae short, not 

 extending beyond the apex of the scuteUum, the third joint a trifle 

 shorter than the fourth, strongly curved beneath; stigma long and 

 narrow, broader at base where it is slightly angulate; third cubital 

 cell twice as wide apically as basally, on the radius one-fourtli shorter 

 than the second; recurrentella jointing the cubitellan ceil the length 

 of the intercubitella basad of the intercubitella; ciaw^s deeply cleft, 

 inner tooth slightly shorter than outer; sheath broad, straight above, 

 rounded at the apex, sharply oblique and then gently oblique to the 

 base. Black; clypeus, lab rum, mandibles, palpi, supraclypeal area, 

 entire orbits, posterior ones broadly, most of the postocellar area, 

 most of the pronotum, tegulae, posterior margin of the preseutum, 

 anterior half of the scutellum, posterior margin of the scutum, upper 

 half of mesepisternum, yellomsli; legs black; coxae except basally 

 trochanters, anterior and intermediate tibiae and tarsi, apex of the 

 posterior femora beneath, posterior tibiae, base of the posterior tarsi, 

 yellowish-white; last two tergites and the margins of the four apical 

 sternites yellowish-white; wings subhyaline, venation dark brown, 

 costa and stigma yellowish. 



Type locality. St. Paul Island, Bering Sea. Described from one 

 female collected April 15, 1914, by A. G. Whitney, and bears his lot 

 No. 122. Named for A. G. Wliitney. 



Type.— Cut. No. 21642, U.S.N.M. 



PACHYNEMATUS GOTARUS Kincaid. 



Females from St. George Island, Bering Sea, collected in June, 

 1914, by G. Da Has Hanna, at the same time that males of this 

 species were taken seem to be without any doubt the females of this 

 species. In Marlatt's revision they run to pubescens Marlatt, but 

 differ from that species in the emargmation of the clypeus and other 

 head characters. 



Female. — Length 6.5 mm. Robust. Clypeus gently convex, the 

 anterior margin broadly, shallowly, arcuately emarginate; supra- 

 clypeal foveae deep, elongate, confluent with the antennal foveae; 

 supraclypeal area opaque, rather strongly convex, triangular in out- 

 line; middle fovea deep, punctiform; frontal crest not broken; ocellar 

 basin weU defined, triangular in outline, with the lower wall broad; 



