LIST OF DIPTERA. 1161 



domen obconical, not longer nor broader than the chest, adorned 

 with a tawny covering, somewhat tawny and having a hoary 

 tinge beneath : legs black, clothed with black hairs and bristles ; 

 shanks dark ferruginous ; foot-cushions tawny : wings slightly gray, 

 with a pale brown tinge along the fore borders; wing-ribs dark 

 tawny ; veins black, pitchy towards the base ; tip cross-vein forming 

 a very obtuse angle with the fourth longitudinal vein, straight for 

 more than half the length, very slightly curved inward from thence 

 to the tip, joining the border a very little above the tip of the wing ; 

 lower cross-vein with a short inward curve near the base, almost 

 straight from thence to the tip ; scales grayish. Length of the body 

 3-g- lines ; of the wings 7 lines. 



a. West Africa. Presented by Sir E. Belcher. 



Page 797. 



Group ? 



Tachfna fusiformis, n. s. Nigra, capite aureo, scutelli margine pos- 

 tico abdomineque ferrugineis, hide vittd, fasciis apiceque nigris, 

 antennis nigris, articulo 2° ferrugineo, pedibus nigris, tibiis ob- 

 scure ferrugineis, alis cinereis basi fulvis ad costam fuscis. , 



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

 in front with a golden covering, thickly clothed beneath with pale 

 yellow hairs; facials, epistoma and sides of the peristoma ferrugi- 

 nous ; epistoma slightly prominent ; sides of the face fringed with 

 bristles at the base : eyes dark red, not hairy : sucker pitchy, clothed 

 with tawny hairs : palpi ferruginous, beset with black bristles : feelers 

 black ; second joint ferruginous ; third joint linear, rounded at the 

 tip, full four times the length of the second ; bristle tapering from 

 the base to the tip, a little more than twice the length of the third 

 joint, its first joint very short, second longer: chest slightly ferrugi- 

 nous on each side of the base of the wing ; hind border of the 

 scutcheon ferruginous : abdomen ferruginous, obconical, a little 

 longer but hardlv broader than the chest, adorned with a broad black 

 stripe ; hind borders of the second and third segments and tip black : 

 legs black, clothed with black hairs and bristles ; shanks dark ferru- 

 ginous ; foot-cushions yellow: wings gray, tawny at the base, brown 

 along the lore borders till near the tips ; wing-ribs dark tawny ; 

 veins pitchy, dark tawny towards the base ; tip cross-vein forming a 

 slightly obtuse angle with the fourth longitudinal vein, a little curved 

 inward along the whole length, joining the border at some distance 



5 H 3 



