11)4 HYMENOPTERA. 



and acute. Thorax, the disk thinly sprinkled with fuscous pu- 

 bescence, that on its sides is griseous ; the wings fuscous towards 

 their anterior margins, the nervures dark fuscous ; the legs have a 

 thin cinereous pubescence, that on the tarsi is bright fulvous-yel- 

 low. Abdomen, the sides of the basal segment and apical margins 

 of all the segments fringed with white pubescence, usually more 

 or less interrupted, particularly those on the basal segments ; 

 beneath, the pollen-brush pale yellow. 

 Hab. United States. (Coll. E. Doubleday.) 



