revision oj the genus Argynnis. 559 



A . clisa is a well-marked species peculiar to the moun- 

 tains of Corsica and Sardinia, and is, as far as I know, 

 the only instance of such an insular development in the 

 genus. 



A. aglaia has perhaps the widest range of any species 

 of the genus. It varies chiefly in size, from an average 

 of about 1"6 in. on the Dovrefeild, in Norway, to about 

 2'4 in. in Amurland. The females in England are some- 

 times very dark in colour ; in hot climates, such as 

 Southern Spain and Amurland, they are paler and 

 greener towards the base of the wings than in ordinary 

 European specimens. In Japan the species seems rare 

 or local, and the only female I have is somewhat darker 

 green on the hind wings below. In Kuldja Alpheraky 

 says it is rare, and ascends to 10,000 ft. At Ta-Tsien- 

 lo, in East Tibet, it seems common, but, as far as we 

 know, it does not extend to Central China. A form has 

 been taken in the extreme north-west of Kashmir and 

 Ladak, vithatJia, Moore, by Capt. Hellard and Mr. Leech, 

 which may be considered as a good local variety, though 

 I have not seen enough specimens to say so with 

 certainty. It flies on the Skorolah as high as 15,000 ft. 

 elevation, and may be recognised by its pale colour, and 

 in the male is much less heavily marked with black than 

 any other aglaia I have seen, resembling niohe, var. 

 orientalis, very closely. The females also, on account of 

 the pale markings of the apex and outer marking of 

 the fore wings, resemble niohe more than aglaia, so that 

 I had confused it with the Ladak form oijainadeva, which 

 was first sent me by Mr. de Niceville as vithatha. But 

 the under side is that of a true aglaia, and leaves little 

 doubt of the position of this insect. 



A. neriype is allied to niohe, and is perhaps an extreme 

 eastern development of this species ; but it is so much 

 larger, differently marked below, and constant to its 

 type that I was clearly mistaken in putting it down as a 

 variety of adippe in my list of the butterflies of Japan, 

 being partly misled by a Korean specimen in which the 

 median vein seemed somewhat dilated. Mr. Leech, who 

 took large quantities in Korea, holds the opinion, in which 

 I fully agree, that coreana is the same as ncrippe, and a 

 distinct species from either niohe or adippe. I have 

 seen a specimen of coreana from Japan, taken by Jonas, 

 in Mr. Godman's collection. 



