igii.] G. RiCARDO : Revision of the species of Tabanus. 195 



haired segmentations on a grey tomentose border, enlarged in the 

 middle as broad, triangular spots, and at the sides wider and more 

 distinct; underside blackish with the sides broadl}' white haired. 

 Legs black, all tibiae with the exception of the apices pale yellow or 

 white, the pubescence on coxae, femora, pale part of tibiae white, 

 elsewhere black. Wings clear, stigma very pale yellow, veins 

 brown, all posterior cells widely open. 



Tabanus oxyceratus, 2 , Bigot. 



Mem. Soc. Zool. France, v, p. 652 (1892). [Atylotns.\ 



Type ? from India. 



In Brit. Mus. coll. females from Cheena Forest, Himalayas, 

 and N. Chin Hills, Burma. 



In Indian Museum coll. from Mussoorie, India. A small 

 black species with grey segmentations and grey median spots on 

 the abdomen. Frontal callus large, protuberant, prolonged in a 

 short, very thick line ending in a point. Forehead wide. Legs 

 black, tibiae 3^ellowish. Length of type 13 mm., others 11-12I mm. 



Face covered with grey tomentum and with whitish or 3'ellowish 

 hairs. Palpi long, not very stout at base, ending in an obtuse 

 point, reddish yellow densely covered with black hairs. Antennae 

 dull reddish, darker at apex, the first two joints with black pubes- 

 cence, the second very small, the third wide at base with very 

 slight angle. vSubcallus and forehead covered with brownish yellow 

 tomentum. Forehead wide, slightly narrower anteriorly, about four 

 times as long as it is broad, the frontal callus blackish, not quite 

 reaching the eyes, the forehead with dark markings beyond the 

 apex of callus and on vertex. Thorax with two distinct grey 

 stripes, grey at the sides, breast with white pubescence. Sciitellum 

 in well-preserved specimen with a grey tomentose posterior border 

 coveted with white hairs. Abdomen short, the broad but short- 

 ened triangular grey-haired spots are present from 2 — 5 segments, 

 the segmentations reddish yellow but covered with grey hairs and 

 grey tomentum; under side with reddish yellow segmentations, 

 pubescence on dorsum of abdomen black Legs black, the tibiae 

 on basal two-thirds reddish yellow with whitish hairs on the lighter 

 part, the fore coxae and hind femora with white pubescence, else- 

 where it is black. Wings hyaline, stigma yellow, veins reddish 

 yellow, appendix present. 



In the two specimens from Burma the hairs on the segmenta- 

 tions are yellowish. 



Tabanus orientis, $ , Walker. 

 (PI. xiv, fig. r8.) 

 List Dipt., i, p. 152 (1848). 



Tabanus consocius, $ , Walker, Dipt. vSaund., i, p. S*^) (1850). 

 Tabanus pcrlinea, s , Walker, Lc. 



