BUTTERFLIES. 147 



228. DoLESCHALLiA POLIBETE, Cramer. 



A common species up to 4,000 feet from April to December. 

 The larva is said by Mr. G. C Dudgeon to feed on various species of 

 nettles, and is very conspicuous and common on the Tukvar spur at 

 3,500 feet. 



229. Charaxes (Eulepis) dolon, Westwood. 



Apparently single-brooded, and occurs at low elevations only in 

 April and May. Female. Expanse : 4-3 inches. Description : 

 Larger than the male, but agreeing with it in every respect, except 

 that the tails are about one-fourth longer, a little broader, especially at 

 the tips, which are bluntly rounded instead of being gradually produced 

 to a point. I have only seen one specimen of this sex, taken in Bhutan 

 on 2nd May, 1892, and now in the collection of Mr. G, C. Dudgeon. 



230. Charaxes (Eulepis) eudamippus, Doubleday. 



A much commoner species in Sikhim in the spring than C, dolon, 

 Westwood. Occurs from April to August according to Otto MuUer. 

 Found at low elevations only. The female has the anterior tail of the 

 hindwing widest at its end, where it is obliquely truncated; the male 

 has this tail quite narrow throughout, and ending in a point. 



231. Charaxes (Eulepis) athamas, Drury. 



The commonest species of the genus occurring in Sikhim, and 

 found from April to December from 6,000 feet to the level of the Terai. 

 The larva feeds on a species of plant very like a prickly Mimosa. 

 Colonel Swinhoe gives C. hharata, Felder, as a distinct species from 

 the Khasi Hills, and places as a synonym C. arja, de Nic^ville {nee 

 Felder). He is altogether in error, and cannot have studied the 

 descriptions of these two species carefully as I did when writing 

 " The Butterflies of India, Burmah and Ceylon." Since the second 

 volume of that work appeared dealing with the genus Charaxes, 

 I have visited Vienna, and find that C. hharata, Felder, and G. arja, 

 Felder, have been correctly identified by me, as proved by an 

 examination of the types in Dr. C. Felder's collection. 



232. Charaxes (Eulepis) arja, P'elder. 



Common at low elevations in Sikhim throughout the year, though 

 less so than C. athamas, Drury. It may be known from that species 

 by the discal band of both wings and the subapical spot of the 

 forewing on the upperside being white instead of green. The green 

 colour of C. athamas is much brighter in freshly-caught specimens 

 than in old cabinet ones, as it fades very quickly. 



233. Charaxes fabius, Fabricius. 



A butterfly of the plains, but stragglers have been taken in Sikhim 

 at low elevations from May to July. The larva feeds on the leaves of 

 the tamarind tree. 



