CELASTKINA ARGIOLUS. 401 



Siberian form. The males exhibit no difference on the upperside 

 except the rather broader black border; on the underside, however, the 

 faintly-indicated, marginal, lunular border is strongly-developed, and 

 there is a row of spots between this and the outer margin, which 

 is wanting in European examples ; the hindw r ings of the Corean 

 examples have this marginal row of spots and are also surrounded with 

 strongly-marked lunules. The females have a broad black border on 

 the upperside ; that on the hindwings being particularly broad, 

 absorbing the black marginal spots, but not so that they are completely 

 lost therein ; indeed, they show rather distinctly. These examples 

 resemble kaschmira, Moore, in size and breadth of wungs. Length 

 of forewungs, $ , 17mm., $ , i3mm.-17mm." [It may be here 

 noted, that Moore himself states (Proc. Zool. Soc. Lond., 1882, p. 144) 

 that his kasmira is a synonym of the Indian coelestina, Koll.] The 

 few Corean $ s in the B.M. coll. are very remarkable, with very broad 

 costal and outer-marginal borders, the small blue area very brightly 

 metallic and becoming wmite by iridescence when the light is thrown 

 off it. One is labelled, " Gensan, August 1877." 



y. var. Ladonides, De l'Orza, " Lep. Jap.,'' p. 20 (1867). Ladon, Men., 

 " Enum. Corp. Animal. Mus. Petrop.," pt. ii., pi. x., fig. 5 (1855). — Menetries 

 has considered, certainly with some doubt, this Japanese Lyceenid as being refer- 

 able to ladon, Cram., a species from the Cape of Good Hope. We have inspected 

 the true ladon in Boisduval's collection, and are satisfied that the Japanese insect 

 is quite distinct (De l'Orza). 



Leech refers (Trans. Ent. Soc. Lond., 1899, p. 109) this, with levettii, 

 Butl., to argiolus, a conclusion with which we agree ; they are not, 

 however, typical forms of the latter species, so that w T e prefer to retain 

 this name for the Japanese form of the species, and levettii, Butl., for 

 the Corean form. Of the Japanese form of argiolus, Pryer says (PJwp. 

 Xihon., p. 18): "There are several broods of this insect; w T hile the 

 male is constant, there are two very dissimilar temperature forms of 

 the female ; one has a large amount of black on the upperside ; the 

 other, which generally appears later, is much brighter. The second 

 brood often exhibits both forms." The ladonides of the Brit. Mus. coll., 

 forms a most interesting series, the Japanese examples show T a strangely 

 tinted male from Kobe, which at first suggests that it has been under 

 the influence of damp, except that the two females from the same 

 locality are almost exactly similar ; the females, in the series, indeed, 

 are all rather remarkable, one from Nikko (5000ft., 2. vi. '04) is intensely 

 brilliant in its tint, with a tendency to form a white patch in the 

 upper corner of the blue area (as a result of light effect), whilst the 

 wade black band is also very striking ; the tw T o ? s from Kobe, 23. vi. 

 1900 (Scarlett), have equally w T ide and strongly developed bands, the 

 ground colour, however, being rather of a pale blue-grey, and quite 

 confined to the centre and bases of all the wings. The Chinese 

 specimens in this series are somewhat different, and remind one 

 much, especially in the borders of the males, of oreas, Leech, from the 

 same or neighbouring districts. 



d. var. kobei, n. var. — A modification of ladonides, but a very special form ; the 

 c? of a slaty- or blue-grey ground-colour, the ? of the same tint, forewings with very 

 broad bands along outer margin and costa, and much suffused towards base; the hind- 

 wings also very dark along costa and outer margin, only a small median area being 

 of the slaty blue-grey ground-colour. One s and two ? s, taken at Kobe, Japan, 

 June 23rd, 1900. 



