LIST OF DIPTERA. 1001 



together spindle-shaped ; hind border of the second and fore border 

 of the third pitchy : legs tawny, thinly clothed with short black 

 hairs ; claws black ; middle of fore thighs armed with spines "be- 

 neath : wings colourless, pale brown at the base ; wing-ribs and 

 veins black ; lower cross-vein very slightly curved inward ; poisers 

 tawny. Length of the body 2 lines ; of the wings 3 lines. 

 a. ? From Mr. Children's collection. 



Sepsis depilis, n. s., fern. Nigro-cyanea, obscura, antennis piceis, 



palpis pedibusque nigris, alis limpidis. 



Body bluish black, rather dull : head and chest beset with a 

 very few black bristles: head above rather flat and slightly fur- 

 rowed ; epistoma not prominent : eyes pitchy, convex ; facets of the 

 fore part rather larger than those elsewhere : sucker and palpi 

 black : feelers pitchy, shorter than the face ; third joint tapering 

 from the base to the tip, about thrice the length of the second ; 

 bristle black : abdomen spindle-shaped, narrower but hardly longer 

 than the chest: legs black, rather loug, clothed with very short black 

 hairs : wings colourless ; wing-ribs and veins pitchy ; second and 

 third longitudinal veins slightly converging along the whole length 

 of their course beyond the angular junction of the third with the lower 

 cross-vein. Length of the body 2-g- lines ; of the wings 4 lines. 

 a. Sierra Leone. Presented by the Kev. D. F. Morgan. 



Sepsis tricolor, n. s., fern. Nigra, capite nigro-cyaneo, abdomine 

 rufo apice piceo, palpis antennis pedibusque piceis, femoribus 

 fulvis,femoribus intermediis basi anticisque nigris, alis limpidis. 

 Head and chest armed with a few black bristles : head dark 

 blue, flat above : eyes pitchy, convex ; all the facets small : sucker 

 and palpi pitchy : feelers pitchy, shorter than the face ; third joint 

 long-conical, a little broader than the second and more than twice 

 its length ; bristle bare, very slender, full twice the length of the 

 third joint: chest black, dull: abdomen red, shining, pitchy to- 

 wards the tip, a little narrower and much longer than the chest, 

 spindle-shaped, with a slight protuberance above at the base : legs 

 long, pitchy, clothed with very short black hairs ; hips and thighs 

 tawny ; fore thighs and tips of the middle thighs black : wings co- 

 lourless ; wing-ribs and veins black ; second and third longitudinal 

 veins very slightly converging along their whole length after the 

 angular junction of the latter with the lower cross-vein, which has 

 two extremely slight curves, the lower outward, the upper inward ; 

 poisers yellow, with pitchy knobs. Length of the body 3% lines ; 

 of the wings 5 lines. 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 

 PART IV. 4 S 



