976 LIST OF DIPTERA. 



black bristles : feelers black, nearly as long as the face ; third joint 

 linear, rounded at the tip, nearly twice the length of the second ; 

 bristle feathered to the tip with short hairs, nearly twice the length 

 of the third joint ; abdomen nearly linear : legs tawny, clothed with 

 black hairs and bristles ; claws black ; foot-cushions pale tawny : 

 wings somewhat gray, with a slight tawny tinge along the fore-bor- 

 ders ; wiug-ribs tawny ; veins pitchy ; lower cross-vein very slightly 

 curved inward ; scales dingy white, with pale yellow borders ; 

 poisers pale tawny. Length of the body 2 lines ; of the wings 3£ 

 lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Cordylura longa, n. s. mas. Cinerea, angusta, capite Jiavo, tho- 



race bivittato, abdomine nigro, palpis fulvis apice piceis, anten- 



nis Jlavis, pedibus futvis, alls subcinereis. 



Body long and narrow, thinly clothed with black hairs and 

 bristles : head bright yellow, with the exception of a black band 

 across the crown, including the eyelets, clothed beneath with pale 

 yellow hairs ; hind part gray ; sides of the face without bristles ; 

 epistoma not prominent : sucker black, clothed at the tip with 

 tawny hairs ; palpi tawny, pitchy towards the tips, clothed with 

 black bristles : eyes dark red, partly black, convex ; facets of the 

 fore part larger than those elsewhere : feelers bright yellow, much 

 shorter than the face ; third joint nearly linear, almost truncated at 

 the tip, clothed with black down, more than twice the length of the 

 second joint; bristle black, bare, slender, stout towards the base, 

 more than twice the length of the third joint : chest and breast 

 gray ; chest with two slender, indistinct darker stripes on each side: 

 abdomen black, shining, thickly clothed on each side and beneath 

 t with black hairs, linear, narrower and very much longer than the 

 1 chest : legs tawny, clothed with black hairs and bristles ; claws 

 black : wings slightly tinged with gray ; wing-ribs tawny ; veins 

 black, tawny towards the base ; lower cross-vein straight ; scales 

 rudimentary ; poisers yellow. Length of the body 2f lines ; of the 

 wings 4% lines. 

 a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 



G. Barnston, Esq. 



