242 bombyliid^e. 



187. Anthrax manifesta, Walk. 



Anthrax manifesta, Walker, Ins. Saund., Dipt. pt. 3, p. 178 (1852). 



S $ • Head: frontal sexual differences as in A. aperta ; frons 

 at level of antennae forming one-third the width of the head, 

 black, with dense short stiff black hairs, which become denser 

 round base of antennae and are continued along the middle of the 

 face ; frons also with very small recumbent hair-like bright 

 3 r ellow scales ; face, except just below antennae, covered with 

 bright chrome-yellow or orange-yellow elongated scales, inter- 

 mixed with yellow hairs. Antennae black, 1st joint broader at 

 tip, with long black bristles on outer and inner sides and yellow 

 hairs below ; 2nd and 3rd joints normal ; proboscis blackish ; 

 occiput black, upper margin with very small whitish scales, 

 centre with short yellowish pubescence. Thorax black, dorsum 

 with soft dark brown hairs, and some small yellow scales about 

 middle of hind margin, opposite which are some dead-black thin 

 scales on the scutellum. Anterior border, shoulders, and sides of 

 thorax with long dense chrome-yellow or orange bristly, almost 

 scale-like pubescence, which becomes paler or sometimes even 

 whitish on underside ; fan-shaped brushes of this pubescence 

 occur as in A. aperta. Abdomen black ; base of first four seg- 

 ments with small short flat-lying bright yellow scales, thickest on 

 2nd and 4th segments ; 5th and remaining segments with longer 

 similar scales ; the rest of the dorsal surface with small dead- 

 black flat-lying scales and sparse long black or brown hairs. Sides 

 of abdomen with dense scale-like bristly pubescence or very thin 

 real scales, this vestiture varying from deep orange to yellowish 

 in different specimens, and being, generally speaking, deeper 

 coloured on anterior half and paler, sometimes whitish, on hinder 

 half of abdomen ; sides of 5th and 6th segments with elongate 

 dark brown scales and longer dark brown or blackish thick bristly 

 pubescence. Venter black, covered with small bright yellow 

 scales and sparse fine yellow hairs, both scales and hairs longer 

 and denser towards tip ; hind margin of last segment with elongate 

 dark brown scales. Legs scaled as in A. aperta; femora with soft 

 yellow hairs below ; hind tibiae with numerous dark brown or 

 black elongate scales, intermixed with black spines and some 

 smaller yellow scales, which latter appear to occur more or less 

 on the middle tibiae also and to cover most of the femora. Wings 

 pale grey ; costal and subcostal cells dark brown, the colour ex- 

 tending in diminishing intensity into the marginal and filling the 

 1st basal cell ; balteres dull yellowish, variable ; squamae brownish, 

 with a fringe of elongate orange or yellowish scales. 



Length, 14-16 mm. 



Redescribed from two S 6 and three 5 $ from Mussoorie. 

 ix. 1906; Jhajjur, Kashmir, 22.xi. 1911; Simla, 26. v. 1914 (Copt. 

 Evans) ; Lower Eanges, Khasi Hills, 1878 (Chennell). 



Type in the British Museum. 



