LIST OF DIPTEEA. 1089 



ferruginous ; eyes red, whole of the fore part nearly flat, composed 

 of much larger facets than those elsewhere : sucker pitchy, clothed 

 with tawny hairs ; palpi tawny, beset with black bristles : chest dark 

 brown, its sides paler ; breast white : feelers pitchy, a little shorter 

 than the face ; third joint conical, deep, about twice the length of 

 the second joint, which is cup-shaped: abdomen dark brown, linear, 

 longer and narrower than the chest, its sides paler and rather 

 thickly clothed with long black hairs ; underside hoary : legs dark 

 tawny, clothed with very short black hairs ; thighs with a hoary 

 tinge ; feet pitchy, tawny at the base ; claws black ; foot-cushions 

 tawny : wings brown, long ; wing-ribs tawny ; veins black, tawny 

 towards the base ; lower cross-vein very slightly curved inward, 

 situated near the border, and about thrice its length distant from the 

 middle cross-vein ; scales gray, with tawny borders, very small ; 

 poisers tawny. Length of the body 2 lines ; of the wings 5 lines. 



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

 G. Barnston, Esq. 



Hetekomyza flavipes, Barnston s MSS. Cinereo-nigra, capite fer- 

 rugineo albo micante, thorace fusco trivittato, pectore cano, an- 

 tennis ferrugineis, palpis pedibusque fulvis, tarsis nigris, alls 

 cinereis. 



Body black, with a gray covering, thinly clothed with black 

 hairs and bristles : head ferruginous, gray behiud ; sides of the 

 crown and front adorned with white lustre ; sides of the face with- 

 out bristles ; epistoma not prominent: eyes red, not hairy ; fore part 

 rather flat ; all the facets very small : sucker black, clothed with 

 tawny hairs : palpi tawny, beset with black bristles : feelers ferru- 

 ginous, a little shorter than the face ; third joint nearly round, a lit- 

 tle longer than deep, more than twice the length of the second ; 

 bristle black, slender, almost bare, more than twice the length of the 

 third joint; chest adorned with three broad brown stripes, the side 

 pair interrupted : breast hoary : abdomen slightly tapering from the 

 base to the tip, narrower but hardly longer than the chest : legs 

 tawny, clothed with black hairs and bristles ; feet black, tawny at the 

 base ; foot-cushions tawny : wings narrow, very long, dark gray ; 

 wing-ribs tawny ; veins black, tawny towards the base ; lower cross- 

 vein straight for one-fourth of the length from the base, slightly 

 curved inward from thence to the tip ; scales very small, gray with 

 tawny borders ; poisers tawny. Length of the body 2 lines ; of the 

 wings 5 lines. 



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

 G. Barnston, Esq. 



5 B 3 



