LIST OF DIPTERA. 331 



towards the base, ferruginous along the fore border ; poisers dark 

 ferruginous. Length of the body 10 lines; of the wings 18 lines. 



Dasypogon Phalna, n. s., mas. Aureus, thoracis vittis tribus nigris, 

 abdomine ferrugineo maculis dorsalibus fuscis, lateribus fulvis, 

 antennis ferrugineis, pedibus fulvis, alis limpidis apicibus mar- 

 ginibusque posticis cinereis. 



Body longer and more slender than that of D. Anemetus : head 

 tawny, as broad as the chest, covered above with bright golden down, 

 clothed along the borders of the eyes with a row of tawny bristles 

 above, and with a fringe of tawny hairs beneath ; tubercle of the 

 eyelets beset with two long black bristles ; clypeus armed with many 

 long pale yellow bristles ; eyes dark bronze ; fore part flat, composed 

 of larger facets jthan those of the convex part, from which it is also 

 separated by the slight angle along its border : lip piceous, clothed 

 at the tip with short tawny hairs ; palpi ferruginous, clothed with 

 tawny hairs ; hypostoma pale tawny, clothed with yellow hairs : 

 feelers ferruginous ; first and second joints covered with short black 

 hairs ; second joint beset with a single stout black bristle ; third joint 

 spindle-shaped, a little longer than the first and the second joints, 

 clothed above with short black hairs till near the tip, which is paler; 

 following joints almost obsolete : ridge of the neck beset with a row 

 of long tawny hairs : chest covered with golden down, thinly clothed 

 with short black hairs, beset on each side and behind with long 

 black bristles, adorned with three black stripes ; the middle stripe 

 is cleft in its fore part only ; side stripes interrupted by two oblique 

 tawny bands, longer than those of D. Anemetus ; shoulders ferrugi- 

 nous : breast tawny, almost hairless : abdomen ferruginous, tapering 

 from the base to the tip, narrower than the chest and nearly thrice 

 its length, clothed with very short black hairs, beset on each side at 

 the base with a few long pale yellow hairs, and with two or three 

 long tawny spines, adorned along each side with a pale tawny stripe, 

 which is widened towards the hind border of each segment ; disks 

 of the third and following segments brown ; first segment extremely 

 short, crossed by rows of little punctures ; second segment short ; 

 third segment long, with a cross row of punctures near the base ; 

 following segments successively decreasing in length ; tip clothed 

 with tawny and black hairs : legs tawny, clothed with short tawny 

 hairs ; shanks and feet beset with black spines of various length ; 

 tips of feet, of hind thighs and of hind shanks piceous ; claws 

 black ; foot-cushions tawny ; tips of fore shanks armed with a black 

 curved tooth, corresponding with little black tubercles at the base of 

 the fore feet : wings colourless, shorter than those of Z>. Anemetus, 



2g3 



