BOMBYLIUS. — DISCHISTUS. 273 



upper side. Two <? 6 and 1 $ in the British Museum bear 

 this out. 



In the $ the frons forms one-third the width of the head at the 

 Jevel of the antennas, slightly but definitely narrower at vertex, 

 yellowish grey, covered (as is also the face) with long silky yellowish 

 scaly pubescence, with which on at least the frons are intermixed 

 some black bristles ; 1st and 2nd antennal joints on both upper 

 and lower sides brownish yellow. 



This species is easily distinguished from both terminalis and 

 vicinus by the dark brown baso-costal band covering approximately 

 half the wing. 



Genus DISCHISTUS, Liv. 



Dischistus, Loew, Neue Beitr. iii, p. 45 (1855). 



Bombylisoma, Rondani, Dipt. Ital. Prod, i, p. 164 (1856) ; nee 



Bond., Arch. Zool. Modena, iii, p. 67 (1863). 

 Bombylosoma, Marshall, Nomencl. Zool. p. 323 (1873). 

 Bombyliosoma, Verrall, apud Scudd, Nomencl. Zool. p. 47 (1882). 



Genotype, Bombylius minimus, Schrk. ; by present designation. 



This genus differs from Bombylius solely by the 1st posterior 

 cell being open instead of closed. 1). ardens, Walk., has apparently 

 not been recorded since its discovery, and must be regarded as a 

 species requiring corroboration as really Indian. The brilliant 

 scales of D. resplendens will easily distinguish it from Walker's 

 species. 



Range. Europe, Asia, Africa, South America, and Australia. 



216. Dischistus resplendens, Brum,. 



Dischistus resplendens, Brunetti, Rec. Ind. Mus. ii, p. 481 (1909) ; 

 id., op. cit. iii, p. 226 (1909). 



S $ . Head : face below antennae rather prominent, black ; 

 antennae black, very elongated, 1st joint very long, 2nd very 

 short, both with long black hair, 3rd longest of all, flat, with 

 parallel sides and a minute white style at tip ; proboscis strong, 

 black, as long as head and thorax together. In the cf the eyes 

 are contiguous from just below the vertex nearly to the antennae, 

 facets very small, those above and towards the front being rather 

 larger ; the whole face is clothed with soft long greyish hairs, 

 surrounded by a fringe of stronger long bristly black hairs placed 

 round the inner orbit of the eyes ; vertex wholly occupied by the 

 ocellar tubercle and a tuft of long black hairs, the three ocelli 

 being placed in contact with the eyes ; underside of head with 

 soft black and grey hairs ; back of head with a thick fringe of 

 long soft yellowish-grey hairs and a single row of long black hairs 

 on the extreme ocular orbit. In the $ the frons is one-third 

 the width of the head, black, with sparse long black hairs and 

 with a number of small brilliant emerald-green and rose-pink 

 scales, intermixed and lying close to the surface ; these are also 



T 



