Lepidoptera of Sikkim. 317 
46. Lethe serbonis. 
Debis serbonis, Hew., Ent. Mo. Mag., 1876, p. 151; 
Lep. Coll. Atk., p. 2, t. i., fig. 45 (1879), 3. 
Lethe serbonis, Butt. Ind., i., p. 155. 
Not uncommon in the dense virgin forest on Tonglo, 
Tendong, and Sinchul, from 7 to 9000 ft., in the rainy 
season between June and September. The female, 
which is undescribed, has the wings rounder, and the 
bands and ocelli of the under side show more distinctly 
on the upper side than in the male. 
47. Lethe nicetella. 
Lethe nicetella, de Nicé., P.Z.S., 1887, p. 448, 
ff RRNIK OE OAs 
As a full description of this species is published in the 
‘Proceedings’ of the Zoological Society, I need say no 
more aboutit ; but I recognised its distinctness from the 
type of nicetas directly I saw it. I found it much com- 
moner than the latter species, the males being abundant 
along the Goompahar and the flanks of Tonglo from 7 to 
8000 ft., or upwards, in July and August. They settle 
on the roads in wet places on shady paths, but the 
female is very much rarer, and I only procured a single 
good specimen, which differs very little from the male. 
48. Lethe nicetas. 
Debis nicetas, Hew., Ex. Butt., vol. iii.; Debis, t. iii., 
L748 (i863), 2 . 
Lethe nicetas, Butt. Ind., p. 161. 
Though Mr. de Nicéville says that this species is found 
from 3 to 6000 ft. in the Himalaya, I never found it so 
low myself; but it was rare in July on the Goompahar 
ridge near Darjeeling, in virgin forest, at 7 to 8000 ft., 
and has been taken on Sinchul by Mr. Knyvett in June 
and August. This species has hitherto been confused 
with a much commoner one in Sikkim, L. nicetella, from 
which it is, however, quite distinct. 
49. Lethe visrava. 
Debis visrava, Moore, P.Z.8., 1865, p. 768, t. xli., 
fig. 4, g; Butt. Ind., p. 161. 
D. deliades, Hew., Ent. Mo. Mag., ix., p. 84 (1872), 2; 
- Butt. Ind., p. 162. 
TRANS. ENT. SOC. LOND. 1888.—paRT WI. (ocT.) Z 
