TEEIAS.— COLIAS. 431 
Common throughout Japan, excepting the island of Yezzo. Obtained in 
all parts of China visited by my collectors, and recorded from S.E. Corea. 
Distribution. India and all the warmer parts of Asia. 
Genus COLIAS. 
Colias, Boisduval, Sp. Gen. i. p. 633 (1S3G) ; Doubleday, Geu. Diurn. Lcp. i. p. 72 
(18i7). 
" Head moderately broad, clothed with rather long hairs. 
" Eijcs oval, prominent. 
" Labial palpi longer than the head ; clothed with scales, and in front with appressed hairs. 
First joint curved ; second cylindrie, about equal in length to the first ; third joint 
minute. 
" Aiitennai short, rather stout, generally thickening to the apex, which is truncate. 
" Thorax stout, clothed in front densely with fine hair. 
" Anterior wings subtriangular ; the apex sometimes, though rarely, acuminate, or almost 
falcate ; the costa sometimes slightly sinuate. Costal nervure very stout. Subcostal foui- 
branched : its first uervule thrown off about the middle of the cell ; the second at, or near 
to, the end of the cell ; the third, much nearer to the apex than to the end of the cell. 
First discoidal nervule united to the subcostal for a considerable distance beyond the 
cell. Lower discocellular nervule about twice the length of the middle discocellular. 
" Posterior wings obovate, or subtriangular, with the angles rounded. Discoidal nervure appear- 
ing to be a third subcostal nervule. 
" Legs moderately stout. Tarsi rather long, very spiny. Claws but little curved, deeply bifid, 
without paronychia or pulvilli. 
" Abdomen of moderate size, not equal in length to the inner margin of the posterior wings. 
"Larva subcylindric, but little smaller at the extremities, slightly pubescent. 
" Pupa not arched, gibbous ; the head abruptly pointed, the abdomen tapering gradually to a 
point, the back keeled." {Douhledag, I. c.) 
Colias hyale. (Plate xxxiv. figs. 1-14.) 
Papilio hijale, Linnaeus, Syst. Nat. x. p. 409 (1758). 
Colias hyale, Lang, Butt. Eur. p. 53, pi. xii. fig. 3 (188i) ; Pryer, Rhop. Nihon. p. 8, 
pL ii. figs. 4 a, 4 6 (188G). 
Colias poliographus, Motschulsky, Etud. d'Entoni. ix. p. 29 (1860). 
Colias simoda, de I'Orza, Lep. Jap. p. 16 (186'J). 
Colias neriene, Fischer, Motsch. 1. c. 
Colias erate, Murray, Ent. Mo. Mag. xiii. p. 34 (1876). 
Colias subaurata, Butler, Ann. & Mag. Nat. Hist. (5) vii. p. 138 (1881). 
Colias elwesii, Butler, 1. c. 
