i8o Records of the Indian Museum. [Vol. IV, 



& . Male type is not mentioned in Walker's description, but 

 bears a label "factious" in his handwriting. It is immediately 

 distinguished b}' the ej^es which have the facets almost the same 

 size, those where the eyes join hardly perceptibly larger; this 

 character at once distinguishes it from Tahanus fumifer. Beard 

 blackish, with the same coloured hairs on face. Fore tibiae black. 

 Wings deeply tinged yellowish brown. Till further material is 

 available, it is impossible to define this species more accurately. 



Tabanus dissimilis, 9 , n. sp, 

 (PI. xiv, fig. 15.) 



Type 9 from Selangor (Butler), a series from Singapore 

 (Butler, Ridley), two 9 from vSilam, N. Borneo and Borneo. 



A species very nearly allied to Tabanus fumifer, Wlk., but dis- 

 tinguished from it in general appearance by the redder thorax, 

 covered thickl}^ with ashy grey tomentum, and with black pubes- 

 cence so that it appears darker than in the Walker species, with no 

 yellowish interspersed hairs, and by the clear wings, only the space 

 between the costa and the first longitudinal vein being yellowish 

 brown. In the less width of the forehead anteriorly with the frontal 

 callus practically reaching the eyes lies the chief plastic difference. 



Length of t^'pe 21 mm., other specimens 19^ — 22 ram. 



Head large, wider than thorax. Palpi with a rather longer apex 

 than in Tabanus fumifer. Forehead about ten times as long as it 

 is wide, hardly more than half the width of the vertex anteriorly. 

 Breast reddish with grey tomentum, and with black above and 

 white pubescence below. Scutellum identical with thorax. Abdo- 

 men very similar but anteriorly with traces of yellowish brown or 

 grey tomentum, the spots indistinct, often absent, usuahy white 

 haired ; under side reddish with grey tomentum and white pubes- 

 cence : the lighter hairs on sides of abdomen below the black ones 

 are white. Legs : the fore femora are reddish brown or black with 

 grey tomentum, but with wholly black pubescence, only the 

 middle and posterior pairs with white hairs below in some speci- 

 mens, in the t3^pe they are black. No white hairs are visible on 

 the fore tibiae, but a few on the hind tibiae below. 



Tabanus ignobilis, 9 , Rondani. 

 Ann. Mus. Civ. Genova, vii, p. 457 (1875). 

 Length 15 — 20 mm. 



Antennae brown-red. Forehead fulvous, the linear callus 

 reddish.. Face white, with white hairs. Palpi very palely luteous, 

 black haired. Thorax with the dorsum obscurely red and with 

 darker stripes, the pleurae and breast whitish and white haired. 

 Abdomen brown-reddish, on the dorsum with black spots , chiefly 

 scattered posteriorly : the posterior margins of the segments 

 narrowly pale ; the median whi^ir.h stripe of spots ; under side 



