I 



THE CANAt)IA.N El^tOMOLOGiSt. 215 



Tlie reciirrenl nervure in front wings received by the cubital cell 

 distinctly or considerably beyond the middle ; abdomen most fre- 

 quently marked with yellow, rarely immaculate ; metathorax feebly 

 sculptured, with a well-defined cordate area on the posterior face. .9. 



7. Males 8. 



Females : 



Superorbital foveas sharply defined, linear or wedge-shaped, and 



usually connected with a depression behind the lateral ocelli  



abdomen polished impunctate, or at most finely, microscopically 



punctate; pygidium narrowed, foveated.Blepharipus, Lepel., et.Br. 



[ = Coelocrabro, Thorns.*] 

 [Type B. nigrita, Lepel.] 



Superorbital fovepe wanting, or never sharply defined, indicated only 

 by a slight cicatrix or glabrous mark ; metanotum with a well- 

 defined semicircular area, divided by a median grooved line ; 

 abdomen smooth, impunctate, the pygidium flat, triangular, not 

 excavated, and clothed with glittering 



hairs Crossocerus, Lep., et. Br. 



[Type C. scutatus, Lepel.] 



8. Superorbital fove» sharply defined ; metathorax with the cordate area 



fiot well defined, usually subobsolete ; front legs and anlennre 

 normal ; middle tibice with an apical spur. 



Clypeus anteriorly narrowly produced and roundly emarginate; 

 head quadrate or subquadrate, the superorbital fovese linear or 

 wedge-shaped ; abdomen not or scarcely longer than the head 



and thorax united, polished Blepharipus, Lepel. 



= Coelocrabro, Thoms. 



[Type B. nigrita, Lepel.] 



Clypeus narrowly produced medially and sinuate on each side of 



the production ; head large, nearly quadrate, the superorbital 



fovese distinct but not large, pyfiform ; abdomen not very 



long Epicrossocerus, Ashm., n, g. 



[Type C. insolens, Fox. | 



Clypeus subsemicircularly produced, not emarginate ; superorbital 



foveee curved, linear or lunulate ; hind tibiae strongly clavate ; 



abdomen greatly elongate, about twice as long as the head and 



* Blepharipus was subdivided by Morawitz and others before Thomson, which left 

 nigrita as the type. 



