366 LIST OF DIPTERA. 



hairs ; claws black ; foot-cushions tawny : wings ferruginous ; wing- 

 ribs piceous ; veins ferruginous ; poisers tawny. Length of the 

 body 15 lines ; of the wings 27 lines. 



a. Sandwich Isles. Presented by Captain Beechey. 



Dasypogon melanogaster, Wied. Dipt. JExot. i. 215, 2. Auss. Ziveif. 



i. 368, 3. (See page 304, Group I.) 

 a. Brazil. From Mr. Mornay's collection. 



Dasypogon Fossius, n. s., mas. et fem. Flavus, thorace nigro tri- 

 vittato, lateribus peetoreque fulvis, abdomine ferrugineo, anten- 

 nis pedibusque fulvis, alis limpidis apicibus marginibusque pos- 

 ticis cinereis. (See page 322, Group VII.) 



Head yellow, as broad as the chest, piceous about the eyelets, 

 beset behind with black bristles, clothed beneath with pale yellow 

 hairs ; front and clypeus covered with golden down, the latter armed 

 with long white bristles : eyes bronze ; fore part flat and composed 

 of rather large facets : lip black, clothed at the tip with short tawny 

 hairs ; palpi pale ferruginous, beset with ferruginous hairs : feelers 

 tawny; second joint very slightly clavate, full as long as the first ; 

 third joint nearly spindle-shaped, longer than the first and the second 

 joints : chest yellow, adorned with three broad black stripes, beset 

 on each side and behind with a few black bristles ; breast and sides 

 of the chest tawny: abdomen of the male ferruginous, narrower 

 than the chest and nearly thrice its length, slightly tapering from 

 the base to one-third of its length, nearly spindle-shaped from thence 

 to the tip, which is shining, and clothed with tawny hairs ; first 

 segment extremely short ; second segment short, convex ; third and 

 following segments long, but successively decreasing in length : 

 abdomen of the female nearly linear for two-thirds of its length, 

 slightly tapering from thence to the tip, which is armed with a 

 circlet of short ferruginous spines : legs tawny, thinly clothed with 

 very short black hairs, beset with a few black bristles ; feet black to- 

 wards the tips ; claws black ; foot-cushions pale tawny ; tip of each 

 fore shank armed with a long black curved tooth, which corresponds 

 with some black tubercles at the base of each fore foot : wings co- 

 lourless, gray at the tips and along the hind borders ; wing-ribs 

 ferruginous ; veins black ; poisers tawny. Length of the body 9 — 10 

 lines ; of the wings 16 — 18 lines. 



a. -? From Mr. Children's collection. 



