LIST OF DIPTERA. 661 



Dolichopus ciliatus, Barnstorms MSS., mas. et fern. Viridis, capi- 

 tis fronte aureo-pubescente, antennis fulvis, articulo 3° supra 

 nigro, pedibus fulvis, tar sis piceis, alis subcinereis. 



Body green : head covered in front with golden down : eyes 

 red : mouth black : feelers tawny ; third joint nearly oval, black, 

 from near the base to the tip above, and from half its length to the 

 tip beneath ; bristle black : breast and sides of the chest and of the 

 abdomen covered with white bloom ; appendages of the abdomen 

 tawny ; scales white : legs tawny ; feet pitchy ; fore feet dark taw- 

 ny : wings slightly gray ; wing-ribs tawny ; veins black ; poisers 

 yellow. Length of the body li — If line ; of the wings 3 lines. 



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

 G. Barnston, Esq. 



Dolichopus adjacens, n. s., fem. JEneus viridi varius, capite 

 cyaneo-viridi, antennis nigris, pedibus fulvis, tarsis posticis pi- 

 ceis, alis subcinereis. 



Head bluish green on the crown, covered in front with yellow- 

 ish white down, fringed along the eyes with hoary hairs : eyes red : 

 mouth pitchy ; palpi tawny : feelers black ; third joint very short : 

 chest and abdomen brassy, mingled with green : breast and sides of 

 the chest covered with gray bloom, which also appears beneath the 

 abdomen, but is more slight : legs tawny ; hips green, covered with 

 gray bloom ; fore hips mostly tawny ; feet darker than the shanks, 

 especially towards the tips ; hind feet pitchy : wings slightly gray ; 

 wing-ribs and poisers tawny ; veins black. Length of the body 3 

 lines ; of the wings 6 lines. 



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

 G. Barnston, Esq. 



Dolichopus coercens, n. s., mas. Viridis, capite cyaneo-viridi, tho- 

 racis lateribus cupreo et cyaneo ornatis, abdomine cupreo vario, 

 apice nigro, antennis nigris, pedibus fulvis, alis limpidis. 



Head bluish green, covered in front with pale tawny down, 

 fringed along the eyes with white hairs : eyes bright red : mouth 

 pitchy : feelers black ; third joint very short : chest green, slightly 

 tinged on each side with blue and copper-colour ; disk sometimes 

 bluish green : breast covered with hoary down : abdomen green, 

 with a coppery tinge here and there ; tip black ; appendages pale 

 tawny ; scales white, bordered with black : legs tawny ; hips to- 

 wards the base green, and covered with a white bloom ; shanks be- 

 set with black bristles ; feet pitchy towards the tips ; fore feet 

 slender, pale tawny, their tips black, and much widened : wings co- 



