128 Records of the Indian Museum. [VOL. IV 



Frontal callus broad, yellow. Abdo- 

 men black, reddish yellow at sides. 

 Palpi slender. No appendix to 

 wing. Legs yellow . . . . alhilateralis, Macq. 



Group I. 



Forehead with two callosities, the first one usually transverse, 

 the second one smaller, irregular shaped, separated from each 

 other, forehead broad, four to six times as long as it is broad. 

 Small species 9 — 14 mm. Scutellumsame colour as thorax. Abdo- 

 men not banded. 



Tabanus rarus, 9 , n. sp. 



(PI. xiii, fig. I.) 



Type 5 from Kuala Lumpur, Federated Malay States. 

 (H. C. Pratt) , from London School of Tropical Medicine. 



A small species of unusual appearance, the abdomen being 

 covered with grey tomentum and with long white pubescence. 

 Subcallus shining. Legs black, all tibiae whitish with fringes of 

 long white hairs, which are also present on the femora. Wings 

 clear. Length 12 mm. 



Face covered with grey tomentum, and with long white pubes- 

 cence. Beard white. Palpi yellow with white pubescence which 

 is long below and short above. Antennae reddish yellow, the first 

 two joints pale yellow with black pubescence, the third narrow 

 at base with only an obtuse angle representing the tooth. Sub- 

 callus shining, reddish yellow, furrowed in the middle. Forehead 

 five times as long as it is broad, very slightly narrower anteriorly, 

 covered with greyish yellow tomentum ; the frontal callus reddish 

 yellow, reaching eyes, transverse, the median one black, irregu- 

 larly heart-shaped, on the vertex appears another reddish brown 

 small callus ; some black hairs on forehead. Hind part of head 

 with long white hairs. Thorax and abdomen black but appearing 

 grey, being covered with dense grey tomentum, the thorax with 

 whitish pubescence, shoulders reddish with grey tomentum and 

 white hairs ; breast and sides the same. Scuielium identical with 

 thorax, fringed on its outer border with long white hairs. 

 Abdomen has the white pubescence thickest on the last five 

 segments; under side the same, but the pubescence slighter. Legs 

 black, the coxae and femora with some grey tomentum, the fore 

 tibiae white, black at their extreme apex, the other tibiae straight, 

 slender, yellowish, the long white pubescence is thickest on the 

 fore legs, on the tarsi the pubescence is black and short. Wings 

 clear, stigma yellow, veins pale brown. 



