966 LIST OF DIPTERA. 



Eriphia flavifrons, Barnstori's MSS., fem. Nigro-cinerea, capite 



ferrugineo, ventre flavo y palpis antennis pedibusque nigris, tibiis 



fulvis, alls subcinereis. 



Body black, clothed with black hairs and bristles : head bright 

 ferruginous on each side and in front of the crown, and on the sides 

 of the face and of the peristoma ; sides of the face without bristles ; 

 epistoma not prominent : eyes black, convex ; facets of the fore part 

 a little larger than those elsewhere: sucker and palpi black, tawny 

 at the base ; sucker clothed with tawny hairs ; palpi beset with 

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

 rather deep, nearly linear, slightly rounded at the tip, more than 

 twice the length of the second ; bristle bare, rather stout at the base, 

 much more than twice the length of the third joint : chest, breast 

 and abdomen gray : abdomen oval, a little longer than the chest; 

 under side pale yellow, with a narrow gray stripe : legs black, 

 clothed with black hairs and bristles ; hips and thighs tinged with 

 gray ; shanks tawny with dark tips : wings slightly gray ; wing-ribs 

 tawny ; veins black, tawny at the base ; lower cross-vein very 

 slightly curved inward ; scales rather small, white with pale yellow 

 borders, the lower extending very little beyond the upper ; poisers 

 pale tawny. Length of the body 2\ lines ; of the wings 4$ lines. 

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



G. Barnston, Esq. 



Dialtta, Meigen. 



Dialyta ? cupreifrons, Barnston s MSS., fem. Nigro-cinerea, tho- 



race antico fusco bivittato, pedibus nigro-cinereis, genubus ferru- 



gineis, alls cinereis. 



Body black, clothed with black hairs and bristles : head want- 

 ing : chest, breast and abdomen tinged with gray : fore part of the 

 chest adorned with three pale brown stripes : abdomen oval, a little 

 longer than the chest : legs black, clothed with black hairs and 

 bristles ; thighs and shanks slightly tinged with gray ; knees dark 

 ferruginous ; foot-cushions tawny : wings gray ; wing-ribs tawny ; 

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

 small, white with pale yellow borders, the upper extending a little 

 beyond the lower ; poisers tawny. Length of the body 2£ lines ; of 

 the wings 4 5- lines. 

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



G. Barnston, Esq. 



