714 LIST OF DIPTERA. 



vex above, pitchy and slightly concave beneath, rounded at the tip ; 

 bristle downy, about twice the length of the third joint, rather 

 stout for about one-third of its length from the base, tapering 

 and slender from thence to the tip, second joint of moderate 

 length, longer than the first: chest tawny-gray, with four indis- 

 tinct slender black stripes, clothed with black hairs and bristles : 

 scutcheon and abdomen reddish black, shining, clothed with black 

 hair?, armed with black spines : abdomen a little broader and longer 

 than the chest : legs red, clothed with black hairs and bristles ; hips 

 and thighs black, covered with gray bloom ; claws and foot- 

 cushions pale tawny ; tips of the claws black : wings brownish ; 

 wing-ribs and veins dark tawny ; some of the latter pitchy ; tip 

 cross-vein forming an acute angle with the fourth longitudinal vein, 

 having a short, but distinct inward curve 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 almost straight for full half 

 the length, slightly curved outward from thence to the tip ; scales 

 blackish. Length of the body 6 lines; of the wings 13 lines. 

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



Tachina leucomelana, n. s. Nigra, capite albido, thorace pectoreque 

 chtereis, Mo obsolete vittato, antennis pedibusque nigris, aLis 

 cinereis. 



Body black: head yellowish white, beset above and in front 

 with black bristles, clothed beneath with white hairs ; crown black ; 

 epistoma very prominent ; sides of the face bristly at the base ; 

 sucker black, ferruginous and clothed with short pale tawny hairs at 

 the tip ; palpi tawny : eyes red, slightly bronzed, not hairy ; feelers 

 black, as long as the face ; third joint a little longer than the 

 second, slightly convex above, flat beneath, almost truncated, but 

 slightly rounded at the lip ; bristle downy, slender, tapering from 

 the base to the tip, full twice the length of the third feeler-joint, its 

 second joint at least twice the length of the first : chest gray, 

 clothed with black hairs and bristles, indistinctly striped ; breast 

 hoary ; scutcheon armed with black spines : abdomen deep black, 

 much broader than the chest, beset with black hairs and spines : 

 legs black, clothed with black hairs and bristles ; claws and foot- 

 cushions pale tawny ; tips of the claws black : wings gray ; wing- 

 ribs tawny ; veins pitchy ; lip cross -vein forming hardly less than a 

 right angle with the fourth longitudinal vein, 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 almost 

 straight, but a little inclined inward for more than half the length 

 from the base, and very slightly curved outward from thence to the 



