Lepidoptera of Sikkim. 425 
brownish green colour, and from the same sex of 
Mencius, Feld., which is the Chinese form of alcinous, 
by the shortness and form of the tails. 
399. Papilio Latreilli. 
Papilio Latreillii, Don, Nat. Rep., iv., t. 140 (1826). 
Papilio minereus, Gray, Zool. Mise., p. 32 (1881) ; 
Lep. Nepal, p. 5, t. i. (1846). 
A not uncommon species at 7—9000 ft. in Sikkim, 
where I have several times seen and taken it on Jella- 
pahar, on Sinchul, and the Goompahar ridge. It fre- 
quents dense forest, where it flies high over the tops 
of the trees, from April or even sooner on into July and 
August, when most of the females are worn and much 
broken. It may best be taken, like most of the high- 
flying forest-insects, by waiting on a sunny day at an 
open space at the top of a hill, or when it occasionally 
comes down to settle on the path. 
I am not aware why Donovan’s name for this species, 
which has priority over Gray’s, has been generally 
ignored by recent writers, except Kirby. The plate, 
though not a good one, is, I think, quite unmistakeable. 
400. Papilio dasarada. 
Papilio dasarada, Moore, Cat. Lep. E.I.C., p. 96 
(1857), no description. 
Papilio Philoxenus, var., Westw., Cat. Or. Ent., t. 40, 
fig. 5. 
This form, which was separated from Philoxenus by 
Moore, is a larger and probably distinct species, which 
occurs not uncommonly in Sikkim, Bhotan, and the 
Khasia hills. In Sikkim it seems rarer than Philoxenus, 
and is found from 1 up to 8000 ft., and from April till 
November. It may be distinguished almost invariably 
by the single large white spot between the second sub- 
costal and discoidal nervules of the upper hind wing, 
which is not accompanied, as in Philoxenus, by a smaller 
white spot below it; on the under hind wing there is an 
additional spot of variable size above the large one 
between the first and second subcostal nervules, which 
is present in one only out of fourteen specimens of 
Philoxenus. There are also marked differences between 
