Lepidoptera of Sikkim. 461 
single male, which is paler and smaller than indrani, 
and, if distinct, may be called C. tissa. 
523. Coladenia pralaya. 
Pterygospidea pralaya, Moore, P. Z. S.LS65, pe 119: 
Rather rare at low elevations during the rains. 
According to Distant, the C. trichoneura of Feld., from 
the Malay region, is distinguished by the pearly-white 
colour of the hind wings beneath. 
524. Udaspes folus. 
Papilio folus, Cram., Paps Bxs-is t: 74; fio. (1779). 
Not so common in Sikkim ag it seems to be in other 
parts of the Himalaya, but fouud up to 4 or 5000 ft. 
from April to October. 
525. Plesioneura alysos. 
Plesioneura alysos, Moore, P. Z. S., 1865, p. 789. 
P. paralysos, Wood-Mason & de Nicé,, JA. S, B., 
LS8h, p. 257. 
Common up to 4 or 5000 ft. from March to December. 
526. Plesioneura restricta. 
Plesioneura restricta, Moore, Lep. Ceyl., p. 178 (1881); 
Wood-Mason & de Nicé., J A. 9. B, 21886; t.xyiis, 
He ore 
I was long disposed to consider this a form of alysos, 
but a comparison of sixteen specimens of the former 
from such widely-scattered places as Kangra, Sikkim, 
the Andamans, Philippine Islands, and Foochow, with 
twenty-two of P. restricta from various parts of India, 
the Andamans, and Burmah in my collection, lead me 
to think that they can be certainly defined as distinct 
species. 
527. Plesioneura nigricans. 
Plesioneura nigricans, de Nicé., J. A. §. B., 1885, pt. ii., 
p. 128. t. ii., fie. 6, 2. 
A rare species, which Mdller’s collectors have recently 
TRANS, ENT. SOC. LOND. 1888.—part mi. (ocr.) 21 
