234 PSYCHODID^E. 



small coalescing subspherical ones. The antennae have the 

 thickened appearance noticeable in P. nigripennis. Leys pale 

 yellow, with a few irregular black bristles; hind femora with a 

 row of long bristles, and hind tibia3 with two rows of long bristly 

 hairs. Tibiae with a few black spines at the tip. Wings distinctly 

 lanceolate, pale grey ; the veins bearing the usual blackish grey 

 hairs, with a wide transverse band (composed of erect light brown 

 hairs) across the centre of the wing, and the apical portion of the 

 wing is also broadly covered with similar brown hairs ; at the 

 base of the wing is a space covered with erect, soft, white hairs, 

 and some traces of a similar patch towards the costa between the 

 two areas of brown hairs. Fringe of wing on costa brownish grey, 

 on posterior margin more grey or whitish. The fringe of the 

 wings is darker on the section contiguous to the brownish band 

 of hairs, and also in the neighbourhood of the wing-tip. A good 

 specific character is the curved nature of the middle veins of the 

 wing (2nd, 3rd, and 4th with their branches), which distinguish 

 it to some extent from its nearest allies, P. nigripennis and 

 P. fulvohirta . 



Length 1 millim. 



Described from one male taken by Dr. Annandale at Madda- 

 thorai, South India, 18. xi. 08, and five females from Calcutta, 

 21. vi. to 2. viii. 08, also taken by the same gentleman on mossy 

 walls. 



Types in the Indian Museum. 



Of the " further specimens " referred to by me, after the original 

 description of the species, as being in the Indian Museum, two are 

 now destroyed and the other two are certainly P. vittata, one being 

 from Calcutta, 16. xi. 08. 



Genus PERICOMA, Wall: 

 Pericoma, Walker, Ins. Brit., Dipt, iii, p. 256 (1856). 



GENOTYPE, Trichoptera fasciata, Mg. ; by designation of Coquil- 

 lett (1910).* 



This genus closely resembles Psychoda. The antennae are 

 16-jointed, the palpi 5-jointed, and the 3rd longitudinal vein ends 

 below the wing-tip, instead of exactly at the tip as in Psychoda. 

 The tegulae or squamae are much more highly developed. 



As in the preceding genus, there are often small spots, formed 

 of scales, on many parts of the wings and legs, and occasionally 

 on other parts of the body. The wing-surface is usually clear of 

 hairs, but in some species it is closely covered with them in 

 addition to the hairs on the veins. Small specific differences in 

 the relative positions of the veins occur, as in Psychoda. The 

 genital organs in both sexes are similar to those in Psychoda. 



Range. Probably world-wide ; though there is no record from 



* I have seen no other species suggested as a genotype. 



