LYCiKNA. 301 
along the lateral ridge is a whitisli line commencing on the third segment and continued 
round the anal extremity. Between the dorsal and subdorsal lines on segments three to ten 
are faintly paler oblique lines of yellow-green, viz. one on each segment sloping downwards 
and backwards ; the warts on the twelfth segment are very often suddenly projected con- 
siderably, and then a circle of fine short hairs is visible on their extremities. The surface of 
the body is also clothed with similar hairs. The head is black, having the base of the papilla? 
and a streak across above the mouth of buff-colour. 
" The jjMjja is about five lines long, smooth, but without polish, the top of the head slightly pro- 
jecting, the thorax rounded, the abdomen plump, curving on the back outwards and back- 
wards towards the tip, which is hidden in the larva skin, the wing-cases prominent and long 
in proportion. It is of a dull green tint, with a dark brown dorsal line of arrow-head marks." 
(Buchler, Larvce of Brit. Butt. 4- Moths, i. pp. 115, 116.) 
Feeds on Oriiithojms purpusilliis and probably also Genista angelica. 
Var. micrargUS, Butler. " Above very like L. argia [? argus'] and L. agon ; lilac, with dentated 
blackish outer border and snow-white fringes ; below with the ground-colour of L. pylaoii 
(triton '?, Fabr.) ; the markings exactly as in L. argus, excepting that the submarginal black 
spots of the secondaries have no trace of metallic colouring about them, and the orange belt 
connecting the two series of black spots is paler. Expanse of wings 1 inch 1 line. Tokio, 
Japan." {Butler, Cistula.) 
Var. pseudSBgOn, Butler. " Nearest to L. cegon of Europe, the same colours. The male smaller, 
and with a very narrow black outer border to the wings ; fringe narrower, submarginal 
black spots of secondaries rather smaller ; female very faintly shot with steel-blue at the 
base of primaries, submarginal orange lunules obsolete ; secondaries darker, purplish towards 
the base, bluish at the base ; the whole of the black submarginal spots bounded internally 
by orange lunules, and externally by white ones. Under surface greyer than in L. agon, 
both sexes washed with pale greenish blue at the base ; black spots smaller, but arranged 
exactly in the same way ; submarginal orange spots of the primaries of the male extremely 
pale ; those of the secondaries destitute of metaUie spots in both sexes. Expanse of the 
wings, S 1 inch 2 lines, $ 1 inch 3 lines. Iburi, Hokkaido [Yesso], July. Coll. 
M. Fenton." (Butler, P. Z. S.) 
Common at Gensan, Corea, in June and July. It occm-s also in Yesso and 
in the mountain districts of Central Japan. Corean specimens are usually 
much above the average size. 
I have given the original description of micrargus and pseudcegon, Butler, 
as the names may perhaps be retained for the respective Japanese forms to 
which they refer. 
Bisfribution. Europe, Asia Minor, Armenia, Persia, Eastern Siberia, Corea, 
Japan. 
Lycaena argus. (Plate XXXI. figs. 5, 8, var.) 
Papi/io argus, Linasus, Syst. Nat. x. p. 483 (1758) ; Faun. Suec. p. 283 (1761). 
2s 
