Lepidoptera of Sikkim. 463 
532. Plesioneura pulomaya. 
Plesioneura pulomaya, Moore, P. Z.8., 1865, p. 787. 
This species is common in the zone of virgin forest 
from 7 to 10,000 ft., occurring, like most of the insects 
of that elevation, only during the rainy season. It 
frequents dense brushwood by the side of the paths, 
settling on flowers of Rubus, and flies, like many of the 
insects of the forest, on dull and even on wet days. Its 
flight, like that of many other Hesperids, is so extremely 
rapid that it is almost impossible to follow it with the 
eye; but, after darting round for a few minutes in circles, 
it generally returns to the same perch. It varies some- 
what in size, but is easily disiinguished from other 
species of the genus. The antenne are black, with a 
yellow or whitish band below the club. It occurs in the 
interior of Sikkim, and up to 10,000 ft. in the Simla 
district. Wood-Mason and de Nicéville, in their paper 
on the butterflies of the Andamans, formerly considered 
this, as well as P. chamunda, to be inseparable from 
leucocirea ; but in Sikkim, at least, 1 think they are 
separable, and this species is restricted to the higher 
zone, where I never saw any of the other forms. 
533. Plesioneura sumitra. 
Plesioneura sumitra, Moore, P.Z.8., 1865, p. 787. 
I was at first inclined to place this form as a variety 
of leucocirea, but now think it can be distinguished by its 
larger size, much larger and more numerous spots on 
the hind wings, and bright yellow, not greyish yellow, 
spotted fringes. It is more like pulomaya in general 
appearance, but differs from that species in the colour of 
its antenne, and the absence of the yellow spot constantly 
present on the hind margin of the fore wing. It seems 
a rare species in Sikkim. I have only three specimens 
taken by myself in the forest near Rikisum, in British 
Bhotan, at an elevation of 5—7000 ft. in August. 
534. Astictopterus diocles. 
Nisoniades diocles, Moore, P. Z.8., 1865, p. 787. 
A fairly common species up to 8000 ft. from April to 
November. 
Pe ae 
