416 MR. J. H. LEECH ON THE BUTTERFLIES [May 3, 



In spring and autumn there is a large pale form of male (con- 

 nected by grades with typical argia), which has been allotte:! to 

 japonica, Murray (which was described from a single female). 



The females in spring and autumn seem to be much suffused 

 with blue, which is not the case with the summer broods. 



Although I have not seen Mr. Fenton's type o{ alope, yet I have 

 no hesitation in including it as a form of this species. The principal 

 points Mr. Fenton enumerates as differences between alope and 

 argia are (1) the deeper violet colouring, (2) the broader border to 

 primaries, (3) the black spot absent from cell of primaries (under- 

 side). The colour of argia is very variable in intensity, and the 

 width of the marginal border seems to vary in proportion to the 

 depth of the ground-colour. With regard to the black spot in the 

 cell of primaries (underside), I have specimens with spots of varying 

 sizes and intensity, specimens without spots, and several specimens 

 with a spot on one wing and not on the corresponding one. The 

 female of alope has, I believe, not yet been described. 



57. Lyc^na cleobis. 



L. cleobis, Brem. Bull. Acad. Petr. iii. p. 472 (1861). 



L. argonides, Brem. Lep. Ost-Sib. p. 28, t. iii. fig. 8 (1864). 



Common at Gensan in June and July ; the specimens are far 

 larger than those from the Amur region. The males cannot possibly 

 be confounded with cegon or argus, on account of their darker 

 colouring ; and the females differ on the underside by their brighter 

 colour, sharper defined markings, and larger spots. 



58. Lyc^na ARGUS, Linn. 



Occurs commonly at Gensan in June and July ; also in Central 



Japan (Oiwake, Oct.), and is reported from Yesso. The Corean 



specimens are rather smaller than the Japanese, and have a broader 

 black margin to hind wing. 



59. Lyc^na ^gon, Schiff. 



L. micrargus, Bull. Cist. Ent. ii. p. 283 (1878). 



L. pseudcegon. Bull. P. Z. S. 1881, p. 851. 



Common in Gensan in June and July. It occurs also in Yesso 

 and in mountain districts of Central Japan. Corean specimens are 

 usually much above the average size. 



LyccBiia iburiensis, Butl. P. Z. S. 1881, p. 852; Aid Identif. Ins. 

 pi. 113, is a form of agon. The type is in Mr. Fenton's collection. 



60. Lyc^na argiolus, L. 



L. ladonides, de I'Orza, Lep. Jap. p. 20. 

 L. levetti, Butl. Ann. & Mag. Nat. Hist. ser. 5, xi. p. 111. 

 Common all over Japan and Corea during the warm season, and 

 as variable in Eastern Asia as it is in Europe. 



