AKTHEAX. 253 



bright golden-yellow bairs, also a bunch of bristly yellow hairs on 

 each side, just behind the shoulder, with some yellow bristles \ 

 some yellow bairs on anterior margin. A large reclinate yellow 

 spine above each wing-base and three or four black bristles on 

 posterior portion of dorsum. Sides of thorax ash-grey, with some 

 patches of whitish hairs ; scutellum black, with golden-yellow 

 hairs and some black bristles towards posterior margin. Abdomen 

 moderately shining black, rather closely covered with short, bright 

 golden-yellow hairs, wliicli form a large fan-shaped bunch on each 

 side of the 1st segment, where they become almost scaly ; there 

 are short black hairs intermixed with the yellow towards the 

 sides of the doi'sum ; venter with close, soft, bright yellow hair. 

 Legs : coxae black, with whitish hairs ; femora and tibiae yellow, 

 with short black bristles, which are longest on the latter and 

 form a circlet at the tips of the tibise ; tarsi black, with very short 

 pubescence and bristles. Wings ver}' pale brown up to just 

 l)e3^ond the middle, wiiere the colour fades away; halteres creamy 

 yellow. 



Length, 5 mm. 



Described from a unique specimen in perfect condition in the 

 Indian Museum collection, from Calcutta, 1. vi. 1909, 



This species does not fall quite naturally into any of my 

 temporary divisions of this genus, as the darkening of the wing 

 does not partake of the usual oblique form, the coloration ex- 

 tending over the whole basal half of the wing. 



198, Anthrax clausa, Bnm. 



Anthrax clausa, Brunetti, Kec. Ind. Mus. ii, p. 477 (1909), 



c? . Head slightly broader than thorax and abdomen ; frons and 

 face black, clothed with dense short black liairs ; eyes distinctly 

 separated at vertex, the ocelli being placed well forward, the frons 

 widening very rapidly, until at the insertion of the antennss it 

 occupies half the width of the head. Antennae black; first joint 

 cylindrical, second sub-spherical, much shorter than first ; third 

 onion-shaped, with long style, small, narrower, and shorter than 

 second. Underside of face uniformly black, proboscis almos-t 

 invisible; back of head dark grey, with a few whitish hairs. 

 Thorax dull black ; anterior border with a rather thick fringe 

 of grey hairs, which apparently cover both dorsum and sides. 

 Abdomen linear, with conical tip, of same width as tliorax ; dull 

 black (denuded), probably when in good condition the whole abdo- 

 men is covered with whitish-grey hairs. The present specimen 

 has bunches of such hairs at the sides of the abdomen towards the 

 base, also at the tip ; the dorsum shows little traces of hair, and 

 on it the hair is probably always sparser ; at the sides of the 

 abdomen towards the base are patches of all-black hairs ; venter 

 black, nearly bare. Legx blackish, the inner sides of the anterior 

 tibiae with a brown tint ; femora below with some soft moderately 

 long blackish hairs ; fore tibiae with a single row of small black 



