iQii.] G. RiCARDO : Revision of the species of To-hdinvis. 175 



triangular; under side with thick yellow pubescence at the sides 

 and on segmentations, leaving a broad dark median stripe. Legs : 

 femora blackish with grey tomentum, the tibiae obscurely yellow^- 

 ish or reddish brown, apices and all tarsi black; the pubescence on 

 coxae and femora yellowish, elsewhere black. Wings large, tinged 

 yellowish brown or almost clear with no appendix, veins blackish 

 on fore border, thin brown, the first posterior cell widely open. 



Tabanus indianus, cf 9 , n. sp. 



? Tahanus uientitiis, & , Wlk., List Dipt., i, p. 162 (1848). 



In Brit. Mus. coll. 



Type 9 and a series from Kadra, N. Kanara, S. W. India 

 (Bell). Others from Formosa in Dr. Kertesz's coll. Type cf and 

 a series from Formosa in Dr. Kertesz's coll. 



A reddish brown species with a long narrow abdomen, distin- 

 guished from others of the fumifer subgroup by the distinct pale 

 yellow fore tibiae with white hairs of the female, and by the longer 

 narrow white-haired triangular median spots of abdomen. Femora 

 with black puljescence. Length of type 9 20 mm., others from 

 17 — 22 mm. 



9 . Head wider than thorax. Face covered with greyish 

 tomentum, with a few white hairs. Beard white. Palpi ver}- simi- 

 lar to those of Tabanus malayensis , n. sp., with long obtuse apex, 

 only slightly stouter at base, 3^ellow with thick black pubescence. 

 Antennae reddish brown, darker at apex, the first two joints and 

 apex of tooth with black pubescence. Forehead covered with 

 yellowish brown tomentum-and with some black hairs, about eight 

 times as long as it is wide, only slightly narrower anteriorly 

 (barely a third) than at vertex : frontal callus reddish brown, 

 long, narrow, not reaching the eyes, with long linear extension. 

 Thorax blackish with some grey tomentum and with black pubes- 

 cence and fulvous appressed hairs, sides with black hairs ; breast with 

 reddish white pubescence. Abdomen reddish brown, the median 

 triangular white-haired spots are present from the 2-5th segments, 

 with traces of one on the first and sixth segments, their apices 

 almost reach the anterior border of each segment ; pubescence on 

 dorsum black, thicker at apex; under side lighter reddish brown 

 with white pubescence , which is also present on sides of abdomen 

 except at the apex where it is black. Legs dark reddish brown or 

 blackish brown, coxae with long white hairs, the femora with grey 

 tom.entum and black pubescence, white on the under side of the 

 middle and posterior pairs, tibiae pale yellow, black at their apices, 

 the fore tibiae appear whiter on account of their white hairs ; the 

 middle and posterior pairs have .some white pubescence below, 

 otherwise it is black, and on all the tarsi. Wings long, faintly 

 tinged yellow-brown on fore border and along veins, stigma 

 yellowish brown, veins brown, first posterior cell slightly narrowed 

 at opening. 



