No. 22.] HYMENOPTERA OF CONNECTICUT. 627 



Occurs throughout the State. New Haven, 18 August, 1904, 

 22 August, 1906 (P. L. B.) ; Branford, 3 September, 1904 

 (H. L. V.). 



C. fraterna Smith. 



Length 5-10 mm. This species has been observed by the 

 Peckhams attempting to interfere with Anoplius scelestus which 

 was dragging a spider to its own nest. 



Occurs throughout the State. Thompson, 11 July, 1906 

 (H. L. V.). 



C. robinsoni Cresson. 



Length 6-8 mm. 



Occurs throughout the State. 



C. longipes Smith. 

 Length 7-8 mm. 



N0TOCYPHIN.E. 

 This subfamily is not as yet represented in the fauna of 

 Connecticut. 



Pepsins. 



Key to Tribes. 

 Hind tibiae without spines or only with very weak ones, never 



serrate pseudageniini p. 627 



Hind tibiae more or less serrately spined, if nearly smooth as 



in some males then nervellus is not before cubitus 



pepsini p. 6a8 



PSEUDAGENIINI. 



Males often have the transverse furrow on the second sternite 

 obsolete; the last joint of the hind tarsi is without strong spines 

 beneath ; the nervellus situated before the cubitus. 



Key to Genera. 

 Dorsal aspect of propodeum with erect hair . .Pseudagenia p. 627 

 Dorsal aspect of propodeum without erect hair . .Ageniella p. 628 



Pseudagenia Kohl. 

 Key to Species. 



1. Legs red mellipea 



Legs black .^ 2 



2. Wings with a large dusky spot below and including stigma; 



body black caliptera 



Wings hyaline, or slightly dusky at tips; body metallic blue. . 



architects 



