962 LIST OF DIPTERA. 



little beyond the lower ; poisers pitchy. 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. 



Eriphia grisea, Barnston's MSS., mas. Nigro-cinerea, capite an- 

 tice argenteo, thoracis lateribus albo vittatis, abdomine cano sub- 

 tessellato, palpis antennisque nigris, pedibus nigro-cinereis, alis 

 subcinereis. 



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

 ginous on each side of the peristoma ; front adorned with white 

 lustre : sides of the face without bristles ; epistoma not prominent : 

 eyes dark red ; fore part slightly convex, its facets larger than those 

 elsewhere : sucker black, clothed with a few tawny hairs ; palpi 

 black, slender, beset with black bristles : feelers black, a little 

 shorter than the face ; third joint full twice the length of the second, 

 slightly decreasing in depth from the base to the tip, which is 

 rounded ; bristle stout at the base, clothed nearly to the tip with 

 very short black hairs, nearly thrice the length of the third joint : 

 chest and breast tinged with dark gray ; each side adorned with a 

 white stripe : abdomen obconical, longer and narrower than the 

 chest, slightly tessellated with hoary reflections, which are mostly on 

 each side: legs black, clothed with black hairs and bristles, slightly 

 tinged with gray ; foot-cushions pitchy : wings pale gray ; wing- 

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

 slightly curved inward along half the length, nearly straight from 

 thence to the tip ; scales whitish, with pale yellow borders, the upper 

 extending a little beyond the lower ; poisers tawny. Length of the 

 body 3% lines ; of the wings 7 lines. 



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

 G. Barnston, Esq. 



Eriphia ? Acela, n. s., fem. Nigra, capite subtus cano, thorace cano, 

 quadrivittato, pectore cinereo, abdominis lateribus cano macula- 

 tis, palpis antennisque nigris, pedibus nigro-cinereis, alis ci- 

 nereis. 



Body black, rather broad, thickly clothed with black hairs and 

 bristles : head hoary beneath ; front tinged with gray ; sides of the 

 face fringed with bristles at the base ; epistoma prominent : eyes 

 red ; fore part nearly flat, its facets larger than those elsewhere : 

 sucker black, long, clothed at the tip with tawny hairs ; palpi long, 

 black, slender, beset with blaek bristles: feelers black, nearly as long 

 as the face ; third joint deep, linear, almost truncated at the tip, 



