Lepidoptera of Sikkim. 427 
thinking some change of colour may have taken place. 
The males vary considerably in the number and 
position of the white patches on the hind wing, which 
are normally three in number; but the outer one is 
sometimes wanting, and an additional one is sometimes 
found towards the abdominal angle. The female is 
unknown to me. 
403. Papilio aristolochie. 
Papilio aristolochie, Cram., Pap. Ex., ii., t. 128, a, b 
(1779). 
Common up to 2 or 3000 ft. from April to December. 
404. Papilio paris. 
Papilio paris, Linn., Mus. Ulr., p. 184 (1764). 
The commonest of the green Papilios in the low valleys, 
and taken up to 5000 ft. Settles on flower-heads, and 
the damp sand in river-beds, and flies rapidly up and 
down their banks. The female is very seldom taken, 
but does not differ from the male, except in its paler 
coloration. 
405. Papilio Krishna. 
Papilio krishna, Moore, Cat. eps B. 1C.,\‘p. 108, 
t. 2a (1857). 
A common species in some seasons at certain places, 
and found from 8 up to 8 or 9000 ft., but hard to catch 
in good condition. I have seen it most often on or about 
the bare tops of hills, like Sinchul, which are clothed 
with dense chestnut, oak, and magnolia forest, in which 
it probably lives and breeds, and comes out on sunny 
mornings into the openings, where alone it can be taken. 
The female is extremely rare, only one or two specimens 
being known to us. Its season is from May to August. 
406. Papilio arcturus. 
Papilio arcturus, Westw., Ann. Nat. Hist., ix., p. 37 
(1842); Arc. Ent., i., t. xxvii. (1848). 
Found in very similar places at the same time of year, 
and has very similar habits to the last, but less abundant 
