308 



primaries is flaxen-grey, with the usual black dots surrounded -with white ; the secondaries 

 are thickly powdered with silvery green, or sometimes bluish, scales from the base of the 

 wing as far as the submarginal line, which is composed of small reddish dots placed between 

 the nervules ; the outer margin and fringes are pure white. 

 Expanse 30 millim. 



Of this species, which was first discovered by Mon seigneur Felix Biet at 

 Ta-chien-lu, I have specimens from almost all the localities in Western China 

 ■\-isited by my collectors, and also from HoAv-kow in Thibet. It appears to 

 be on the wing fiom May to August. 



Lycsena eros. 



Papi/io eros, Ocliseiihcimcr^ Sclimett. Eur. i. 2, p. 42 (1808). 



Lycana eros, Boisduval, Icones, pi. xiv. figs. 4-6 (1833) ; Lang, Butt. Eur. p. 116, 

 pi. XXV. fig. 2 (1884). 



" Expands 1 to 1-12 inch in the typical form. Fringe of aU the wings white. The male has all 

 the wings shining light blue above, without discoidal spots, with a well-defined dark brown 

 hind marginal border, and on the hind margin a row of dark spots. The female is brown ; 

 all the wings with a light orange hind marginal band and black spots ; fore wings with a 

 black discoidal spot. Underside pale grey in the male, brownish grey in the female, with 

 the usual orange bands and rows of ocellated spots ; fore wings with two basal spots ; the 

 bases are tinged with pale blue." {Lang, I. c.) 



There is an unnamed specimen in the National Collection from Chemulpo, 

 N.W. Corea, which I certainly believe to be this species. It agrees exactly 

 with typical L. eros on the upper surface, but the orange marginal band on 

 under surface of secondaries is rather brighter and broader. Alpheraky 

 (Rom. sur Lcp. v. p. 78) records a specimen taken in the Bourkhane-Bouddha 

 Mountains in N.E. Thibet, and states that it differs from the ordinary type 

 in the paler under surface, the narrower black margins on the upper surface 

 of the wings, and the absence of black submarginal spots, which are con- 

 fluent with the marginal border of secondaries in the type. 



Ikemcr records specimens taken by Radde in the neighbourhood of Lake 

 Baikal, Diiliuria, and from the Bureja Mountains. Staudinger, however, 

 (Kom. sur I/'p. v. p. 102) states that the species has never been subsequently 

 received from Amiirland or Trans-Baikal and considers that Bremer's records 

 must be incorrect. l\v adds tliat lie has (mly received specimens of Z. eros 

 fn^m Central Asia and the Altai. 



According to Lang this species occurs in mountain pastures in Switzerland 

 and the Pyrenees from .luiic to August. 



