84 THE CANADIAN ENTOMOLOGIST. 



1 6. Third cubital cell small, distinctly triangular, and either petiolate or 



subpetiolate, rarely elliptical 1 8. 



Third cubital cell larger, triangular or subtriangular, but never 

 petiolate, the marginal cell obliquely truncately pointed at 



apex 17. 



1 7. Transverse median nervure in front wings interstitial with or originating 

 a little before the basal nervure; pronotum as long or nearly as long 

 as the mesonotum. 



Pronotum with the hind margin in <j? obtusely angularly 

 emarginate, in fi arcuately emarginate ; first joint of flagellum 

 in ° elongate, much longer than the second, in £ not longer 



than the second (15) Schiztosalius, Sauss. 



(Type S. Elliotii, Sauss.) 

 Pronotum with the hind margin in both sexes arcuately 

 emarginate ; first joint of flagellum in ? short, not longer 

 than the second, in £ shorter than the 



second (16) Sophropompilus, Ashm., g. nov. 



(Type Pompilus ingenuus, Cress.) 



18. Tranverse median nervure in front wings not interstitial with the basal 



nervure, the submedian cell most frequently distinctly longer than 



the median 19. 



Transverse median nervure in front wings interstitial with the basal 

 nervure, the submedian and median cells equal. 



Pronotum shorter than the mesonotum, with the hind margin 

 obtusely angularly emarginate (rarely arcuate); first joint of 

 flagellum in £ elongate, much longer than the second, in £ 



not longer than the second (17) Pompiliodes, Radoszk. 



(Type P. unicolor, Radosz.) 



19. Marginal cell not elliptical, but triangularly pointed at apex; claws in 



9 with a median tooth beneath, in £ cleft 20. 



Marginal cell elliptical ; claws cleft in both sexes. 



Second and third cubital cells longer than wide, narrowed above; 

 first recurrent nervure interstitial with the second transverse 

 cubitus, the second recurrent nervure joining the third cubital 

 cell a little beyond the 



middle (18) Lophopompilus Radoszkowski.* 



(Type Pompilus grandis, Eversm.) 



"I do not know this genus ; judging from the shape of the marginal cell, it may 

 probably prove to belong to the Pepsince, 



