Fossorial Ilyynenoptera from the Khasia Hills. 83 



tlian long, not longer than broad as in circe, wliile in the 

 latter it is slightly but distinctly narrowed in the middle. 



The male is smaller, the yellowish border behind the eyes 

 narrower and less distinct, and the third cubital cellule is 

 much more narrowed on the top, being there almost only the 

 half of the length of the space bounded by the second recur- 

 rent and the third transverse cubital nervures. 



Pompilus Hookeri, sp. n. 



Xiger, abdomine fere purpureo ; alis violaccis, basi late hyalinis. S • 

 Long. 15 mm. 



Head transverse behind and little developed behind the 

 eyes, shining, the front and vertex sparsely covered with 

 white pubescence ; the hinder ocelli are placed in deep pits 

 and are separated from each other by about double the length 

 they are from the eyes ; the front and clypeus are thickly 

 covered with silvery pubescence, the apex of the clypeus is 

 almost transverse, the sides obliquely rounded. Mandibles 

 dark rufous before the apex. Palpi black, thickly covered 

 with white pubescence. Thorax densely pruinose, the pubes- 

 cence giving it a pale appearance; on the sides of the meso- 

 notum are two not very distinct longitudinal furrows. 

 Scutellum large, dilated at the sides on the base ; the sides at 

 the apex rounded. The apex of the median segment is 

 roundly incised_, the dilated parts seen from the side are 

 rounded. The furrow in the middle of the mesopleurae is 

 deep, distinct, and moderately wide; the apex is distinctly 

 crenulated ; the depressions between the keels are deep and 

 longest in the middle of the pleurse. The lower part of the 

 metapleurae is slightly depressed and bears some stout 

 irregular striae. Legs pruinose, the spines black. Abdomen 

 velvety and with a distinct purple tint, the sides, apex, and 

 ventral surface covered with black hairs ; the apical ventral 

 surface is incised in the middle. The wings are blackish 

 violaceous from shortly behind the transverse basal nervure, 

 the rest clear hyaline ; the first cubital cellule is one-third 

 longer than the second above; the first recurrent nervure is 

 received near the base of the basal third, the second shortly 

 beyond the middle of the cellule ; the transverse basal ner- 

 vure is interstitial. The claws are rufous and bifid. 



This species comes near to P. ilus, Bing., but is, I believe, 

 judging from the descriptions, distinct. In i/ns the wings 

 are hyaline for half their length ; the clypeus is '' widely 

 emarginate anteriorly/^ while in the present species it is 



