418 Mr. H. J. Elwes’ catalogue of the 
Common up to 8 or 4000 ft. nearly all the year round. 
The specimens found in the cold weather from December 
till March have the under side of a pale greyish brown, 
with hardly any green tint, and the markings almost 
obsolete. 
383. Tachyris paulina. 
Papilio paulina, Cram., Pap. Ex., ii., t. ex., f. n, F 
(1779). 
Recorded by Moore from Darjeeling, but I have seen 
no recent specimens of this species. Moller notes it as 
rare in April and May at the lowest elevations, but it is 
an insect of the plains rather than the hills. 
384. Tachyris hippoides. 
Appias hippoides, Moore, Trans. Ent. Soe. Lond., 
1881, p. 312. 
This species, which is separated from the Sumatran 
and Javan 7’. hippo by Moore on account of the narrower 
dark band of the hind wing below, is very common at 
low elevations, 2—5000 ft., in Sikkim from March to 
November. My specimens agree with those from Nepal, 
the Khasias, and Tenasserim. ‘The females are usually 
smaller than the males. 
A species described as Appias vacans by Butler is 
recorded by him from Sikkim, and figured in ‘ Lep. 
Exotica,’ t. 84, figs. 5,6. This is said to be a female, 
and its supposed male is figured by Moore in ‘ Lep. 
Ceylon,’ t. 52. Ido not see any difference between this 
latter figure and Appias hippoides, and, if Butler’s figure 
is really that of a female, can only suppose it to be an 
aberration of the ordinary form. I have seen nothing 
hike it in Sikkim. 
385. Tachyris nero. 
Papilio nero, Fab., Ent. Syst., iii., 1, p. 153. 
Of very rare occurrence in Sikkim, where I have never 
seen a specimen; but Méller has one or two from the 
low outer hills. 
