igii.] G. RiCAKDO : Revision of the species of Tabanus. 145 



tooth. Subcallus brown. Forehead ashy grey, narrow, the 

 same width throughout and about seven times as long as it is 

 broad, the frontal callus black, almost the same width through- 

 out^ to within a short distance of the vertex, very similar to 

 that of T. pratti. Thorax and scidellum in this species bluish 

 black, with ashy grey tomentum, devoid of pubescence on dor- 

 sum, sides with long black hairs ; breast with similar orange-red 

 pubescence to that of T. pratti. Abdomen black with median 

 white-haired spots, the segmentations white-haired at the sides 

 only, pubescence on dorsum black ; under side black with white 

 segmentations. Legs black with black pubescence, some ^^ellow 

 hairs on the fore coxae and 3^ellow tomentum on the others. 

 Wings marked with dark rich brown colouring, most intense on 

 fore border and across middle of wing, leaving the discal cell how- 

 ever clear, and not extending be3-ond the base of fork of third 

 vein, so that the apex is whollj^ clear, posterior border almost 

 wholly clear, veins and stigma blackish, no appendix present. 

 Halteres brown. 



Tabanus nephodes, 9 , Bigot. 

 Mem. Soc. Zool. France, v, p. 656 (1892). [Aiylotus.] 



T^^pe (female) recorded from India ; a label is affixed to it with 

 " Naga Hills," which are on the Burma- Assam boundar3^ There 

 is another female in the Indian Mus. coll. from Sibsagar, Assam, so 

 that the habitat of this species is probabh^ in these regions. 



A dark reddish brown species with indistinct grey tomentose 

 bands and median spots on the abdomen. Legs reddish brown. 

 Wings deeph^ tinged yellowish brown, with the first posterior cell 

 closed. 



Antennae yellow. Forehead very narrow. Length of type 21 

 mm., the other female is ig mm. 



Face red, covered with grey tomentum, above near the 

 antennae and the subcallus with more yellowish brown tomentum, 

 the pub(iscence brown, on the lower part of the face the pubescence 

 is white. Beard of long white hairs. Palpi yellow with black 

 pubescence, long, slender, not much stouter at base, ending in an 

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

 black pubescence, the third blackish at its apex with a few hairs, at 

 the base broad, with a small tooth crowned with some black hairs. 

 Forehead reddish, covered with grey tomentum, about ten times as 

 long as it is broad, almost reduced to half its width anteriorly, the 

 frontal callus reddish, ver}^ narrow, cylindrical, with long, raised 

 lineal extension ; the callus is hardly wider than this last. Thorax 

 and abdomen reddish brown, the former with gre^^ tomentum, sides 

 reddish yellow, shoulders with black hairs; breast blackish, covered 

 with greyish white tomentum, pubescence probably white. Scidel- 

 lum similar to the thorax. Abdomen with grey tomentose bands on 

 the first four segments about a third of the width of segment ; on the 



