THE CANADIAN ENTOMOLOGIST. 123 



red, black at the base. Legs yellow, a broad preapical ring on the hind 

 femora black, the ends of the hind tibiae brown, hind metatarsi a half 

 longer than the remaining joints together. Wings strongly tinged with 

 yellow, the veins a little darker. 



One specimen, Washington Ty. (H. K. Morrison). 



Bcris mcxicana Bell.? 



^ , $ . Length 7-8 mm. Eyes pilose, broadly contiguous in the 

 male, the frontal triangle small ; front in female rather broad, with parallel 

 sides. Head black, shining, with luteous pile. Antennae black, the base 

 of the third joint yellowish ; third joint thick at the base, the whole 

 antenna not longer than the distance from its base to the ocelli. Thorax 

 and scutellum bright shining green, with a purplish reflection, pile in the 

 male only moderately long, luteous ; scutellum with six blackish spines, 

 and on each side sometimes with a rudimentary additional one. Abdomen 

 black, but little shining, along the sides with yellowish pile. Legs yellow; 

 all the tarsi, except the base or larger part of the first joint, black. 

 Hind metatarsi in the male considerably swollen, longer than the remain- 

 ing joints together. Wings strongly tinged with yellowish, the stigma 

 large, brown. 



Six specimens, Colorado (Morrison, Prof Comstock, No. 47). Some 

 of the specimens have the hind femora above at the tip blackish. This 

 species is most closely allied to B. mexicana Bell. , but differs in the abdo- 

 men being wholly black. A comparison with Mexican specimens is 

 needed. 



Sargiis decorus Say. { =: ? ^. xanthopus Wied.) 



Hab. New Eng., Colo., Wash. Ty. 



Sargus viridis Say. 



{Sargus nigribarbis Bigot, Annales Soc. Ent. France, 1879, 224.) 



Hab. Eastern, Middle and Pacific States. 



This species is a true Sargus ; the eyes of the male are not contigu- 

 ous, and are bare. 



Macrosargus davis, n. sp. 



^, $. Length 9-10 mm. Vertical triangle and the under part of 

 the face in the male, and the upper two-thirds of the front and the face 

 likewise in the female, bright shining green, frontal triangle and the lower 

 part of the front ( $ ) moderately projecting, yellowish white, front in the 



