rgii.] G. RiCARDO: Revision of the species of Tahanu^. 131 



and the coxae replaced b^^ yellow. The antennae are dark at the 

 apices. The abdomen is a lighter reddish brown or reddish yellow. 

 The wings are clear, with no appendix. "The forehead is almost the 

 same width throughout, and a little shorter, hardly more than 

 four times as long as it is narrow. Length 9-10 mm. 



There is a female in the British Museum collection from N. 

 Kanara, India (Bell), which appears to be the same species, but 

 the middle callus of forehead is much narrower, and the forehead 

 itself slightl}' narrower and anteriorly narrower. The bands on the 

 third and fourth segments are a little produced in the middle, but 

 this is the case in some of the other specimens. 



Tabanus leucocnematus, ^ > Bigot. 

 Mem. Soc. Zool. de France, vii, p. 656 (1892). 



Type (now headless) 9 , from India, is a faded denuded speci- 

 men which was evidently described by Bigot in this condition ; it 

 would be impossible for anyone to verify the species from his des- 

 cription in which he makes no mention of the pubescence on scutel- 

 lum and on thorax so characteristic of this species and others in the 

 group. Fortunateh^ fresh specimens from Lushai Hills, Burma, 

 in Dr. Kertesz's collection and from Khasi Hills, Assam, in Mr. 

 Howlett's collection serve to clearly identify the species, and the 

 following description is based on them. 



A small species dark brown in colour with two yellow pubes- 

 cent bands on the abdomen, scutellum entirely covered with yellow 

 pubescence, all tibiae white, wings tinged brown on the fore border. 

 Length lo-ii mm. 



Face covered with grey tomentum, a dark brown band is 

 present on each side of the antennae, pubescence white, consisting of 

 long hairs, beard white. Palpi stout, ending in a point, pubes- 

 cent, appearing black but covered with dense grey tomentum, on 

 the inside they are yellowish, the pubescence is white and long on 

 the first joint, on the second short and black, with a few white 

 hairs below and on apex. Antennae reddish yellow with a small 

 tooth on third joint, the first two joints with black iDubescence. 

 Subcallus shining, brown or reddish brown, convex, furrowed in 

 the middle, produced between the antennae, divided from the frontal 

 callus by a narrow interval. Forehead about live times as long 

 as it is narrow, and about a third narrower anteriorly, covered 

 with grey tomentum and with two separate calli, the frontal callus 

 almost square, furrowed in the middle, almost touching the eyes, 

 the middle callus distinct from it in fresh specimens, is narrower 

 and oblong, sometimes with a short linear extension, both blackish 

 brown in colour. Thorax dark brown, on the anterior half covered 

 with grey tomentum and with yellow appressed pubescence, on 

 posterior half with black pubescence bordered with a fringe of 

 yellow hairs; sides of thorax with long white hairs ; breast covered 

 with grey tomentum, and with long white pubescence. Scutellum 



