98 L. de Niceville — List of Butterflies taken in SikJcim [Nos. 2 — 4, 



Family PAPILIONIDiE. 

 Subfamily Pieein^. 



252. Colias myrmidone, Esper. 



This species occurs in Darjiling as low as about 500 feet, and is not 

 uncommon about the Station on grassy hill-sides. I have followed Mr. 

 Elwes in thus naming the species allied to G. edusa which occurs in Sikkim, 

 as stated in his paper on " Butterflies from Sikkim" (Proc. Zool. Soc. Lond., 

 1882, p. 401). 



253. Frioneris clemanthe, Doubleday. 



254. Delias descombesi, Boisduval. 



Subfamily Papilionin^. 



255. Papilio {Ornithoptera) rhadamanthus, Boisduval. 



A single male. It is far less common in Sikkim than P. pompeus. 



256. Fapilio erioleuca, Oberthiir. 



This species is not uncommon in Sikkim. The pemale may be known 

 from that sex of P. astorion, Westwood, by the ground-colour of the 

 upperside being of a bronzy-greenish instead of an indigo-greenish ; it 

 never has a paler diffused patch near the inner angle of the forewing as 

 occurs in many specimens of P. astorion ; and the lateral pale bands on 

 the body are of a much paler pink. 



Females of this species stand as P. aidoneus, Doubleday, in Colonel 

 Lang's collection, and it is possible that this identification is correct. The 

 type specimen we are informed by Mr. Distant is not in the British Museum, 

 and is probably lost. 



257. Fapilio ganesa, Doubleday. 



Family HESPERIID^. 



258. CJioaspes gomafa, Moore. 



259. Gkoaspes vasutana^ Moore. 

 A single female. 



260. Astictopterus lutleri, Wood-Mason and de Niceville. (Plate 

 X,fig.3, S), 



This species will be more fully described hereafter, but the characters 

 given below will sufiice to distinguish it. Male. Upperside uniform dark 

 fuliginous glossy brown. Underside slightly paler, the internal area up 

 to the median nervure much paler. Sindwing with a brush of long hairs 

 placed near the base of the costa, which when erected lie in a groove at 

 the end of the cell of the forewing. Female larger, the wings broader 

 and paler, and of course lacking the male tuft of hairs. Antenna, heady 

 hody and legs concolourous with the wings. 



Expanse : <J , 1*5 j ?, I'l inches. 



