LIST OF DIPTERA. 785 



Tachina nervosa, Walker, Linn. Trans, xvii. 341, 26. 

 a. Port Famine. Presented by the Entomological Club. 



Tachina pyrrhopyga, Wied. Zool. Mag. iii. 53, 19. Auss. Ziveif. 



ii. 319, 69. Walker, Linn. Trans, xvii. 341, 27. 

 a. South America. Presented by the Entomological Club. 



Tachina Hybreas, n. s. Nigro-cinerea, capite antico fnlvo, palpis 

 fulvis, pedibus nigris, tibiis fulvis, alis sublimpidis basi et ad 

 costam fulvis. 



Body black, stout, clothed with black hairs and bristles, covered 

 with a gray bloom: head pale, tawny in front, clothed beneath with 

 pale yellow hairs ; a ferruginous stripe between the eyelets and the 

 feelers; epistoma not prominent: eyes red, not hairy: sucker black, 

 clothed with tawny hairs ; palpi tawny, beset with black bristles ; 

 feelers wanting : scutcheon ferruginous towards the tip : abdomen 

 elliptical, a little longer and broader than the chest : legs black ; 

 shanks dark tawny ; wings nearly colourless, tawny at the base, and 

 along the fore borders for nearly half the length ; wing-ribs and 

 veins tawny; veins black towards the tips ; tip cross-vein forming an 

 obtuse angle with the fourth longitudinal vein, nearly straight, but 

 very slightly waving from the base to the tip, joining the border at 

 some distance above the tip of the wing ; lower cross-vein with 

 two distinct curves, the lower inward and rather shorter than the 

 other, which is outward ; scales white, bordered with yellow. Length 

 of the body 4 lines ; of the wings 7 lines. 



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

 G. Barnston, Esq. 



Tachina Coras, n. s. Nigra, capite aureo, thorace vittis tribus in- 

 termedia duplicata, pectoreque canis, lateribus Jlavescentibus, 

 scutello ferrugineo, abdomine maculis fasciisque plumbeis ornato, 

 palpis fulvis, antennis ferrugineis, articulo 3° pedibusque nigris, 



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

 gold colour, clothed beneath with bright yellow hairs, very prominent 

 about the base of the feelers; face hoary, its sides fringed with 

 bristles for one-fourth of the length from the base ; epistoma slightly 

 promiment : eyes red, not hairy ; sucker black, clothed with b tawny 

 hairs ; palpi tawny, beset with black bristles : feelers black, shorter 

 than the face; first and second joints dark ferruginous, third joint 

 nearly linear, hut with a very slight depression above, and a pro- 

 portionate convexity beneath, truncated at the tip ; full twice the 

 PART IV. 3 Z 



