PERICOMA. 247 



entirely covered with cream-coloured microscopic scaly pubescence, 

 except the metatarsi, which are black nearly to their tips, this 

 being the most striking specific character, and one by which the 

 species is easily separated from P. lacteitarsis, its nearest ally. 

 The genital appendages as in P. margininotata, but rather longer. 



Length 1| millim. 



Described originally from three females in the Indian Museum 

 from Calcutta, dated 28. vii. 08 (type), 2. viii. 08, and 17-18. viii.,. 

 07. Additional specimens in the Indian Mueeuin afford the 

 following data : Calcutta, 9. ii. 10, 17-18. vii. 07, 28. vii. 08, 

 8-23. viii. 08, 1-26. ix. 08 (all Annandale, some taken " at light ") ; 

 Madliupur, Bengal, 17. x. 09, "at light" (Paiva); Ernakulam, 

 Cochin, Malabar Coast, 4. xi. 08 (Annandale) Quilon, Travancore, 

 9. xi. 08 (Annandale). 



177. Pericoma impunctata, Brun. 



Pericoma impunctata, Brunetti, Kec. Ind. Mas. iv, p. 309 (1911). 



Body thickly clothed with long, very dark brown bristly hairs ; 

 the surface of the body itself also dark brown. 



Head : antennae brownish yellow. Legs with dark brown 

 bristly hairs ; tarsi light brown but without traces of any pale 

 scales at tips of joints. Wings thickly clothed on all the veins 

 with a double row of dark brown bristly hairs, denser and more 

 bristly along the costa and at the base of the wing. In certain 

 lights the fringe of the wing and some of the stiff hairs on the 

 basal part appear greyish, but the true colour of practically every 

 part of the insect is dark brown. 



Length 1| millim. 



Describee! from one specimen (sex uncertain) from Tenmalai, 

 west side of Western Ghats, Travancore, South India, 22. xi. 08 

 (Dr. Annandale). 



Type in the Indian Museum. 



The 2nd longitudinal vein apparently forks beyond the base of 

 the 3rd vein, but the root of the wing is too closely covered with 

 hairs to admit of exact observation. 



178. Pericoma unicolor, Brun. 



Pericoma unicolor, Brunetti, Eec. Ind. Mus. iv, p. 309 (1911). 



This species is wholly brown in colour, only the tarsi being 

 rather lighter. 



Head-, antennae (partly broken) with flask-shaped flagellar 

 joints. Wings very large, and with almost wholly dark brown 

 hairs which appear rich golden brown in certain lights and show 

 a violet tinge when viewed from different directions. The 2nd 

 longitudinal vein forks immediately before the base of the 3rd 

 vein, the anterior branch of the 2nd forking again near the 

 middle of the wing, much beyond the fork of the 4th, which 

 occurs towards the base, only shortly after the almost invisible 

 posterior cross-vein, which latter is situated in a line with the 



