306 LIST OF DIPTERA. 



black, beset with black hairs, and at their tips with long black bris- 

 tles : feelers black ; first and second joints clothed with black bris- 

 tles ; second joint a little longer than the first ; third joint piceous, 

 very long, spindle-shaped, longer than the first and the second 

 joints: neck covered with a gray bloom, clothed beneath with white 

 hairs, and having a fringe of black bristles on its cross-furrow : 

 chest covered with a gray bloom, on which are four indistinct broad 

 brown stripes ; sides beset with black bristles : breast hoary : abdo- 

 men of the male dark reddish brown, thinly clothed with yellow 

 hairs, nearly cylindrical, narrowest in the middle, much narrower 

 than the chest and rather more than twice its length, clothed with 

 long white hairs on each side of the base ; fore borders of the fourth 

 and fifth segments shining and punctured ; tip dark ferruginous, 

 shining, beset with long yellow hairs and black bristles : abdomen 

 of the female not narrower in the middle, shining, and with nume- 

 rous little cross-furrows towards the tip, which is armed with a 

 circlet of black spines : legs black, beset with yellow hairs and black 

 spines ; hips hoary and clothed with white hairs ; claws black, with 

 a short blunt tooth towards the base beneath, almost straight till 

 near their tips, which are much curved ; pulvilli dark tawny ; fore 

 legs unarmed : wings blackish ; wing-ribs and veins black ; poisers 

 yellow. Length of the body 13 — 15 lines ; of the wings 24 — 26 

 lines. 



a. Silhet. From Mr. Stainforth's collection. 



Dasypogon Aphidas, fern. Microstylum rufiventre? Macq. Dipt 

 JExot. i. 2, 31, 10. Niger, ferrugineo pubescens, abdomine rufo, 

 antennis pedibusque nigris, tibiis tarsisque basi piceis, alls nigro- 

 fuscis. 



Body black : head a little narrower than the chest, covered 

 with deep ferruginous down, clothed behind and thickly beneath 

 with black hairs, and beset behind the eyes with a row of black 

 bristles ; sides of the crown furnished with a few black hairs and 

 bristles ; clypeus armed with four long pale yellow spines : eyes 

 black ; some of the facets coppery ; fore part slightly convex, beset 

 with larger facets than those of the other part : lip black, clothed at 

 the tip with short tawny hairs ; palpi black, beset with black hairs 

 and bristles: feelers black; first joint linear, covered with a few 

 black hairs ; second joint club-shaped, as long as the first, beset 

 with some black bristles ; third joint piceous, spindle-shaped, much 

 longer than the first and the second : chest and breast covered with 

 very dark ferruginous bloom ; the former beset across the neck on 

 each side and behind with some black hairs and bristles : abdomen 

 red, shining, crossed by numerous little furrows, piceous at the base, 



