148 Records of the Indian Museum. [Vol. IV, 



yellowish at the base. Only the fore pair of legs are remaining ; 

 these are brown, the tibiae pale. Forehead about ten times as long 

 as it is broad, narrowed anteriorly. Frontal callus oblong, no 

 linear extension apparent. Palpi large, broad, ending in a point, 

 reddish, flat. Antennae reddish with hardly any tooth. Length 

 18 mm. A specimen in Brit. Mus. coll. from Chantabun, Siam, 

 which I believe to belong to this species — though owing to its 

 bad preservation it is not possible to be certain — has the scutellum 

 covered with grey tomentum, the legs as Schiner describes, and 

 measures 15 mm. The beard is brown. 



The female of Tabanus crassus, Walker, has not yet been dis- 

 covered; it is just possible this may prove to be it, though it is a 

 very differently shaped insect. The closing of the first posterior 

 cell is not always present in both sexes. 



Tabanus auriflamma, $ , Walker. 

 List Dipt. Brit. Mus., i, p. 155 (1848). 



Type (female) and two others from Sylhet, Assam, in Brit. 

 Mus. coll. 



In Indian Mus. coll. one female from vSibsagar, Assam, 

 another from Nag a Hills and another from Cachar, both 

 localities on the border of Burma and Assam. 



In Kertesz coll. one female from Sylhet, Assam. A handsome 

 yellow-and-black species with yellowish wings, brown at apex 

 and on posterior border, abdomen yellowish with black bands. 

 Legs yellowish. Antennae yellow. Length of type 22 mm., 

 others from 20 — 24 mm. 



Face , subcailus and forehead covered with bright golden yellow 

 tomentum ; hairs on face and beard yellow or yellowish brown. 

 Palpi reddish yellow with brown pubescence, stout, ending in an 

 obtuse point. Antennae reddish, the first two joints covered with 

 greyish tomentum and with brown hairs, the third joint slender, 

 with no tooth and hardly a perceptible angle. Forehead parallel, 

 about four times as long as it is broad, the frontal callus red-brown, 

 shining, almost square, not reaching eyes, with hardly any lineal 

 extension in fresh specimens ; in denuded ones it appears. Thorax 

 and abdomen yellowish, the former with some greyish brown tomen- 

 tum and browner on the dorsum; pubescence scanty, consisting of 

 short yellow hairs, shoulders with longer soft yellowish brown 

 hairs. Breast the same colour. Scutellum yellow. Abdomen with 

 broad blackish brown bands on the second, third and fourth seg- 

 ments, and a very narrow one on the fifth, all situated on the 

 anterior half of segments, taking up half the width of segment on 

 the second, rather narrower on the third and fourth, and on the 

 fifth hardly noticeable ; in some specimens the bands are reddish 

 brown, the pubescence on the yellow parts golden yellow, thick, on 

 the bands black ; under side similar. Legs wholly reddish yellow, 

 in the type the fore tarsi and tibiae are darker, owing to discolora- 

 tion, pubescence reddish yellow. Wings large, deeply tinged with 



