702 LIST OF DIPTERA. 



hairs, beset above with a few black hairs and bristles ; epistoma 

 very prominent ; no bristles on the sides of the face; sucker black, 

 pitchy and clothed with short pale yellowish hairs at the tip ; palpi 

 short : feelers black, as long as the face ; third joint very much 

 longer than the second, convex above, slightly convex beneath, 

 rounded at the tip, rising along the back till near the tip where is its 

 deepest part; bristle pitchy, downy, gradually tapering from the 

 base to the tip; second joint about twice the length of the first; 

 third joint not near twice the length of the third feeler-joint: abdo- 

 men armed with black spines, especially towards the tip, yellow, 

 and half transparent irom the base to beyond the middle, adorned 

 with a ferruginous stripe which extends to the tip: legs black, 

 clothed with black hairs and bristles ; claws and foot-cushions 

 white ; tips of claws black : wings and scales brown, wing-ribs and 

 veins dark tawny, tip cross-vein forming a slightly acute angle with 

 the fourth longitudinal vein which projects a little beyond it, much 

 curved inward near the base, straight from thence to the tip, which 

 joins the border at some distance above the tip of the wing ; lower 

 cross-vein with two curves, one long and near the base, the other 

 shorter and very near the tip. Length of the body 5 — 6 lines ; of 

 the wings 11 — 14 lines. 

 a. Venezuela. From Mr. Dvson's collection. 



Group IV. 



Third joint of the feelers a little longer than the second ; 

 slightly convex above, flat beneath, rounded at the tip ; second 

 joint of the bristle full twice the length of the first. 



Tachina melanopyga, Wied. Auss. Zweif. ii. 272, 19. 

 a. ? 



Group V. 



Third joint of the feelers as long as the second, convex above, 

 slightly convex or flat beneath, rounded at the tip ; second joint 

 of the bristle more than twice the length of the first. 



Tachina. aurifera, n. s. Fusco-fulva, capite jlavo, scutello abdo- 

 mineque ferruqineis, abdominis later ibus nigris, apice aureo ma- 

 cnlato, antennis fulvis articulo 3° nigro, pedibus fulvis, tarsis 

 Jlavis, alis cinereis. 



Head pale yellow, clothed beneath with pale yellow hairs, beset 

 above and in front with some black bristles ; epistoma very promi- 



