1908.] Records of the Indian Museum. 379 



posterior borders. On the surface of the wing are short rows of 

 quite white, short, bristly hairs, placed at apparently irregular 

 intervals along the veins, these hairs being intermixed with black 

 ones towards the base of the wing. The hairs on the surface of 

 the wing on its apical half, and towards the centre portions 

 of both anterior and posterior margins are much darker than on 

 the remaining surface, thus leaving the base, and the proximal 

 part of the centre of the wing apparently much clearer, as in 

 appendiculata. 



Genitalia : Superior appendages consisting of a short, elliptical, 

 basal joint, and a thin, curled, cylindrical, pointed distal one, 

 the whole appendage being small and easily overlooked ; the basal 

 joint bearing stout bristles with sockets, the distal joint bare. In- 

 ferior appendages arising from a triangular basal plate, sickle- 

 shaped, bearing a number (about twenty) of flattened spatulate 

 spinules on the distal two-thirds of the dorsal surface. 



Described from eight & cf in good condition in the Indian 

 Museum taken by Dr. Annandale at Kurseong (5,000 feet), 5-vii-o8, 

 and some others in less good condition from the same source ; 

 also two cf (f from Simla (7,000 feet), ii-v-08. I took three males 

 at Darjiling on windows, 2-X-08. 



Pericoma appendiculata, mihi, sp. nov. 

 5 . North Bengal. Long, if to 2 mm. 



Body blackish, rather sparsely covered above and below with 

 whitish grey hair, which is thickest towards the posterior borders 

 of the abdominal segments, and is darker in some specimens. The 

 posterior part of the thoracic dorsum bears long, black, bristly hair. 



Head : Eyes black, facets very large, bronze ; palpi long, 

 brownish grey, with a few hairs. Antennae sixteen-jointed, scape 

 thick, first joint cylindrical, second globular ; a narrower flagellum 

 of fourteen ovate joints, each with a rather thin verticel of hairs, 

 first joint only barely longer than second : without spines. 



Legs pale yellowish white, fore and hind femora distinctly curved, 

 tarsi mainly black. The legs with numerous bristles of unequal 

 length, some long bristly hairs on the tibiae, which have a circlet of 

 scale-bristles at the tip ; some close-lying small scales on the 

 femora. 



Wings dark grey. The lower prong of the fourth longitudinal 

 vein springs at right angles from the upper, and then forms a 

 second right angle, bearing a distinct appendiadation at that spot, 

 directed backwards. The fourth longitudinal vein forks a little be- 

 hind the fork of the second, which itself is placed just before the 

 centre line of the wing. The veins, which are very distinct, all 

 bear the usual double row of partly erected hairs, directed forwards 

 and backwards, and at the tip of each vein is a small bunch of 

 stronger bristly hair ; the intervening space (especially on the hind 

 borders) being nearly clear, thus giving the border of the wing the 

 appearance of bearing alternate black and white spots. The hairs 



