436 



PAPILIONIDA\ 



to concur with Mr. Elwes, who, in discussing G. hyale and C. erate in his 

 paper on the genus Colias (Trans. Ent. Soc. Lond. 1884), says : — " I am quite 

 unable to say how these two species can be in all cases distinguished from 

 each other, and, though pages might be written on the subject of their 

 varieties, yet I doubt whether anything certain could be made out, except 

 by breeding on a large scale, and in different parts of the world." 



There was a partially gynandrous specimen in Fryer's collection which was 

 taken in Japan, but the exact locality is not stated. It is a male with the 

 colour of the pallid female, and a broad longitudinal streak of the normal male 

 colour through the secondaries (Plate XXXIV. fig. 14). 



Distribution. Europe, North Africa, Asia Minor, Russia, Central Asia, 

 Amurland, xiskold, Japan, Corea, China, and India. 



Colias montium. (Plate XXXIV. fig. 15 $ .) 



Colias montium, Oberthiir, Etud. d'Entom. xi. p. 16, pi. vi. fig. 41 (1886). 



" Voisine de phicomone, dont elle a tout a fait lo facics, mais dont elle diffure par la couleur jaune 

 canari du disquo des ailes supcrieuros eti dessus, sans semis d'atomes noirs, et par la teiute 

 jaune plus fonce du dessous des ailes inferieures. Elle ressemblc uussi a aJ^theml-yi mais 

 elle n'a pas la meme forme d'ailcs ; de plus la teinte gonerale est beancoup moins verdatre 

 tant en dessus qu'en dessous, et la frange et les antennes sont roses, comme daxia pldcomone. 



"La Colias montium ne peut etre confondue avec nila(jhiriensis, Feltler, des monts eelghcrries, 

 dans le sud de I'Hindoustan. Cette Colias indienne, dont M. le R. P. Castets, de Trichinopoly, 

 nous a transmis do nombreux exemplaires tres frais, a I'apex des ailes superieures bicn plus 

 largcment cmpate de noir et la couleur jaune verdatre da dessus des quatro ailes bcaucoup 

 plus vive. Cette Colias nilarjhiriensis nous parait du reste etre une especc part'aitement 

 distincto appartcnant au groupe de hyale." (Oberthiir, I. c.) 



Male. Pale greenish yellow. Primaries have a broad black border on outer margin traversed by 

 a scries of spots of the ground-colour as in C. ladakensis, Feldor*, but the litth spot of tho 

 series is generally absent, and when present is very small. Secondaries are blacliish with a 

 large pale greenish-yellow discoidal spot and a broad border of the same colour on outer 

 margin less distinctly interrupted by the ncrvulea than in C. ladakensis. Under surface of 

 primaries \ni\c greenish yellow, more yellowish on tlie apical area, and powdered with blackish 

 scales on tho basal and Central portions of these wings; the discoidal spot is black with a 

 small white centre, and there is a black spot in tho median and submediaii interspaces : 

 secondaries grccnisli, merging into yellowish towards costa, tlic outer margin has a broad 

 greenish suffused yellowish border; discoidal spot silvery white, surrounded with reddisli 

 brown, and there is a spot of tlic latter colour on tho costa. 



Fftnale. llather larger than tho male; the ground-colour is paler and more suiruseJ with black. 



K.xpanso 48-50 miilim. 



\ have received a long scries of this species taken at a great elevation in 

 • Peise Nov., Lep. ii. j). 197, pi. xxvii. figs. 8, 9 (18(55). 



