ARGYNNIS. 
223 
? ^rffijnnis selene, var. dilutior, Rom. sur Lep. iii. p. 303 (]887) ; Staudingerj op. cit. 
vi. p. 188 (1892). 
"Expands from I'CO to 1-75 inch. Bright fulvous, spotted with black ; bases blackish. Under- 
side : hind wings straw-coloured, marked with dark purplish brown ; a row of black spots 
parallel to the hind margin. There arc pearly or silvery spots arranged thus : two or three 
at the base ; a central row of several, always more than one ; a hind marginal row of trian- 
gular pearly spots, sometimes a streak between these and the central row. 
" Larva. Black, with paler spines, sometimes with whitish dorsal and lateral stripes ; anterior 
legs red. It feeds on Viola canina in June and September."' (Lang, I. c.) 
Yar. perryi, Butler. (Plate XXIY.fig. 13, cJ .) " jiMe. Allied to B. selene, but larger, and with 
all the black markings on both surfaces considerably larger and broader, more like those 
of Argynnis oscams, the ground-colour richer (but not red as in Eversmann's figure of 
A. oscariis) ; the silver spots on the under surface more metallic ; the apical red-brown 
patch of the primaries and the two large patches on the apical and anal areas of secondaries 
much broader and darker. 
*' Expanse of wings 1 inch 9 lines. 
" Posiette Bay, N.E. Corea, August." (Butler, I. c.) 
Occurs commonly at Gensan, Corea, in June and July. 
In my paper on the Lepidoptera of Japan and Corea (Proc. Zool. Soc. 
Lond. 1887), I referred Gensan specimens (Plate XXIY. fig. 14, d ) of this 
species to jperryi, Butler, which I then enumerated as a doubtful species. 
Commenting on these specimens Staudinger (Rom. sur Lep. vi. p. 189) refers 
them to A. oscarus ; but I recently sent him a pair of these Gensan specimens, 
and he returned them as A. selene. In this latter determination I am inclined 
to concur, and think that the examples are probably of the same form as that 
to which Fixsen has given the name of var. dilutior. This form of A. selene 
was taken by Herz in the Corea, and is distinguished by the more silvery 
spots on the under surface of secondaries. Staudinger records the same form 
from Amurland, and also a very small race from the Shilka and Bureja 
Mountains. 
Perryi, Butler, has the reddish-brown patches on the underside of the 
wings stronger and more conspicuous than typical A. selene, but I have 
European examples with these markings equally pronounced. The figui'e of 
perryi is drawn from the type in the National Collection at South Kensington. 
Dr. Fixsen (Rom. sur Lep. iii. p. 303) states that Argynnis selene, Schift'., 
occurs throughout the Avhole Mandschurian district in June and July. 
Generally distributed in Europe, and is also found in Armenia, Bithynia, 
and the Altai. 
