LIST OF DIPTERA. 323 



Dasypogon Spurinus, n. s., mas. et fem. Mas. — Canus, thorace 

 cinereo-fusco vittis tribus pallidioribus, abdominis segmentis 

 fulvo vittatis, antennis nigris articulo 3° piceo, pedibus nigris, 

 femoribus subtus tibiisque basi ferrugineis, alis limpidis. Fem. 

 — Cinereo-fulvus, abdomine ferrugineo, dorso plerumque nigro, 

 antennis pedibusque nigris, femoribus fulvis nigro vittatis, tibiis 

 basi fulvis. 



Male. — Body hoary : head as hroad as the chest, clothed on the 

 crown behind and beneath with long pale yellow hairs; front clothed 

 with close shining pale yellow down ; clypeus beset with many pale 

 yellow bristles : eyes bronze colour, distinctly divided into two com- 

 partments by the size of the facets: lip black ; tongue ferruginous, 

 clothed beneath with thick down; maxilla? tawny; palpi black, 

 clothed with black hairs and bristles : feelers black ; first and second 

 joints of equal length ; second joint beset with black bristles ; third 

 joint piceous, spindle-shaped, ferruginous towards the tip, as long 

 as the first and second joints : chest grayish brown, with three indis- 

 tinct paler stripes ; sides somewhat ferruginous, and beset with pale 

 yellow bristles : breast gray or hoary : abdomen gray, thinly clothed 

 with short yellow hairs, slightly decreasing in breadth from the base 

 to the tip, narrower than the chest and much more than twice its 

 length ; a white stripe along each side ; hind borders of the segments 

 tawny ; tip ferruginous : legs black, clothed with short pale yellow 

 hairs ; thighs beneath and shanks at the base ferruginous; thighs, 

 shanks and feet armed with pale yellow spines ; feet also beset with 

 black bristles ; claws black ; foot-cushions dark tawny, ferruginous 

 at the base ; fore legs unarmed: wings quite colourless ; wing-ribs 

 and veins piceous, the latter black towards the tips ; poisers ferru- 

 ginous. 



a. ? 



Female. — Head pale tawny, as broad as the chest, covered with 

 shining white down and clothed with white hairs ; crown dull dark 

 tawny ; clypeus armed with long white bristles : eyes with green and 

 purplish tints : lip black, rather long, its tip beset with short tawny 

 hairs ; palpi black, clothed with black hairs, and towards their tips 

 with black bristles : feelers black ; first and second joints beset with 

 black bristles; second joint shorter than the first: chest tawny, 

 clothed with short black hairs and beset with white bristles along 

 each side, covered with a gray bloom, which is most apparent on the 

 scutcheon and on the hind chest ; the disk is brown : breast tawny, 

 covered with a shining hoary bloom : abdomen pale ferruginous, 

 shining, decreasing in breadth from the base to the tip, a little nar- 



