436 PAPILIO^-ID.t:. 
to concur with ]Mr. Elwes, who, in discussing C. hjnle 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, Askold, Japan, Corea, China, and India. 
Colias montium. (Plate xxxiv. fig. 15 $ .) 
CoUas montium, Obertbiir, Etud. d'Entom. xi. p. 16, pi. vi. fig. 41 (1886). 
" Voisine de pJiicomoiie, dont elle a tout a fait le fades, mais dont elle differe par la couleur jaune 
canari du disque des ailes superieures en dessus, saus semis datomes noirs, et par la teinte 
jaune plus fonce du dessous des ailes inferieures. Elle ressemble aussi a alpheral-yi mais 
elle n'a pas la meme forme d'ailes ; de plus la teinte generale est beaucoup moins verdatre 
tant en dessus qu'en dessous, et la frange et les antennes sont roses, comme dans phicomone. 
" La CoJias montium ne peut etre confondue avec nilagMriensis, Felder, des monts Xeelgherries, 
dans le sud de I'Hindoustan. Cette Colias indienne, dont M. le R. P. Castets, de Trichinopoly, 
nous a transmis de nombreux exemplaires tres frais, a I'apex des ailes superieures bien plus 
largement empate de noir et la couleur jaune verdatre du dessus des quatre ailes beaucoup 
plus vive. Cette Colias nilaghiriensis nous parait du reste etre une espece parfaitemeut 
distincte appartenant au groupe de Jiyale." (Oberthilr, I. c.) 
Male. Pale greenish yellow. Primaries have a broad black border on outer margin traversed by 
a series of spots of the ground-colour as in C. ladakoms, Felder*, but the fifth spot of the 
series is generally absent, and when present is very small. Secondaries are blackish with a 
large pale greenish-yellow discoidal spot and a broad border of the same colour on outer 
margin less distinctly interrupted by the nervules than in C. ladahemis. Under surface of 
primaries pale greenish yellow, more yellowish on the apical area, and powdered with blackish 
scales on the basal and central portions of these wings ; the discoidal spot is black with a 
small white centre, and there is a black spot in the median and submedian interspaces : 
secondaries greenish, merging into yellowish towards costa, the outer margin has a broad 
greenish suffused yellowish border ; discoidal spot silvery white, surrounded with reddish 
brown, and there is a spot of the latter colour on the costa. 
Ftinale. Eather larger than the male ; the ground-colour is paler and more suffused with black. 
Expanse 48-50 millim. 
I have received a long series of this species taken at a great elevation in 
* Eeise Xov., Lep. ii. p. 197, pi. xsvii. figs. S, 9 (1805). 
