1909.] '• . .Records of the Indian Museum. 475 



' - ' '- ' Anthrax aperta, Wlk. ■ ,r--:iH rvV.^ 



' ' ■ -'^ ' __ Redescription. '■ ^;v .. t^iix-:^ ^>';:^i^i;TJ^^S 



lyong. 10 mm. :: ri'~ /i&'^o; 



' Head. — Frons black/ narrowed on vertex/ where the ocelli 

 are placed on a small protuberance which does not touch the eyes ; 

 frons at widest part (at the base of the antennae) nearly one-third 

 of the head. Eyes black, with a tinge here and there of reddish 

 blronze; facets small, uniform. The frons above the antennae bears 

 sparse black hairs, which become much thicker and more bristly 

 about the base of each antenna, and on the face below the antennae 

 are stiff black hairs covering it. Just below the base of the anten- 

 nae, 'on each side of the raised centre edge of the face above the 

 mouth is a cluster of reddish yellow scales, showing prominently 

 amongst the thick black bristles. Antennae black ; first joint cylin- 

 drical, second sub-spherical, shorter than the first and of the same 

 length as the third, which is conical and drawn oiut into a long 

 apical style. The first two joints have short black bristles, the 

 third is bare, with a little grey tomentum on upper side. Back 

 of head black, nearly bare, under side of head black, with some 

 short white hairs. Proboscis black. 



' '■' ' Thorax. — Ground colour of dorsum black, a thick fringe of bright 

 reddish tawny hairs along the anterior border, continued irregularly 

 below, where is also a thick collar of strong black bristles: 



The dorsum is covered with moderately short blackish brown 

 hair, which is thinnest on the posterior half (partly denuded). On 

 the shoulders a stripe of long whitish grey hair extends downward 

 from the base of the wing, at which place some short grey and 

 red hairs unite the stripe with the anterior border of reddish tawn}^ 

 hair. On each posterior caUus is a bunch of long, thick white hair, 

 which below becomes tawny yellow. Scutellum black, with soft 

 (not numerous) black hairs and traces of grey hairs on posterior 

 border. 1 



Abdomen. — Broad as thorax, linear, with rounded tip. Black,- 

 with moderately short soft black hairs, generally distributed over 

 the dorsum. On each anterior corner is a thick bunch of long 

 white soft hairs, and these are apparently connected by a sparse. 

 basal band of white hairs. At about two-thirds the distance, from 

 the base is a transverse band of short yellowish white scales, ter-r 

 minating at each side of the abdomen in a bunch of silvery white 

 long scales, below which are some yellowish ones. A small bunch 

 of prominent silvery scales is placed on each side of the abdomen 

 near the tip. The sides of the abdomen, posterior to the basal 

 bunch of white hairs are clothed with black stiff bristles, with 

 which some long brown scales are intermixed ; and posterior to 

 the transverse white band the sides are clothed with these brown 

 scales only, BeUy black with black hair and some transverse bands 

 of yellowish grey hair..; ...■,..: ... :..:.;;:: ;■:;; . ;ir^ ;.u-i:.:-i-^;:.;s 



