LIST OF DIPTERA. 451 



Asilus Jacksonii, Macq. Dipt. Exot. i. 2, 145, 25. 

 a. New Holland. Presented by the Haslar Hospital. 



Asilus Lecythus, n. s., mas. et fern. Fuscus, thoracis vittis tribus 

 lateribas pectoreque fulvis, abdomine, mari. fulvo-cinereo apice 

 nigro, fern, fulvo, antennis pedibusque nigris, femoribus apice 

 fulvis, tibiis tarsisque fulvis apice nigris, alis limpidis apice sub- 

 fuscis. 



Body brown : head as broad as the chest, dark tawny on the 

 crown, pale tawny in front towards the clypeus, which is hoary, and 

 armed behind with a few black bristles, and on the fore part with 

 more and longer white bristles ; hind head and under-side also 

 hoary and clothed with white hairs, the former beset with a row of 

 black bristles : eyes dark bronze ; fore part very slightly convex, not 

 very distinct from the other part, but composed of rather larger fa- 

 cets : lip black, shining, clothed at the base with long, and at the 

 tip with short pale tawny hairs: feelers black; first and second 

 joints beset with short black bristles ; second joint much shorter than 

 the first ; third joint spindle-shaped, hardly longer than the first ; 

 fourth and fifth joints like a bristle, but stouter than usual, and 

 about half the length of the third : chest with three tawny stripes, 

 clothed with black hairs, and beset on each side and behind with 

 black bristles ; sides and breast dark tawny : abdomen gray, with a 

 dark tawny tinge, decreasing in breadth from the base to the 

 tip, clothed with pale yellow hairs, narrower than the chest, and 

 about twice its length ; segments from the third to the eighth suc- 

 cessively decreasing in length; ninth segment longer than the 

 eighth, black, shining, ferruginous beneath: legs tawny, clothed 

 with yellow hairs and beset with some black bristles, which are most 

 thick on the feet ; hips and thighs black ; hips clothed with tawny 

 down ; thighs with tawny tips ; tips of the shanks and of the feet 

 black ; each shank with a black stripe ; hind shanks sometimes 

 black, with tawny tips ; claws black, tawny at the base ; foot- 

 cushions dark tawny : wings colourless, light brown at the tips ; 

 disks of some of the areolets in the middle and along the hind bor- 

 der also pale brown ; wing-ribs ferruginous ; veins black, piceous 

 towards the base, where they are ferruginous ; poisers tawny. 

 Female. — Abdomen dark tawny, tapering from the base to the tip, 

 about thrice the length of the chest ; segments from the third to the 

 eighth successively decreasing in length ; ninth segment slender, 

 black, shining, louger than the eighth. Length of the body 6i — 9 

 lines; of the wings 8 — 10 lines. 



a. Nova Scotia. From Lieut. Redman's collection. 



2r3 



