ARGYNNIS. 231 
Underside : fore wings light reddish hrowu, spotted with black ; apices with green and silver 
marginal spots. Hind wings hron/.c-green, with a band of straw-colour tinged with green 
running parallel to the hind margin ; silver spots large and distinct, arranged in three rows ; 
first a row of semilunar spots along the hind margin, then a central row, internal to this is a 
row of throe spots, and then three more at the base. There are never any brown silver- 
centred spots between the marginal and central rows, or any costal silver spot between the 
central and internal rows." {Lamj, I.e.) 
Expanse of Chinese specimens, cJ 04 millim., 2 G4-G9 miUim. 
Lai-va. " Blackish brown, with two pale yellow dorsal lines and reddish-brown lateral spots ; 
spines blackish. Feeds on Viola caiiina in Hay and June." {Lang, I. c.) 
The ki-va is described in greater detail in Buckler's 'Larvae of British 
Butterflies,' i. pp. 71-73. 
The typical form of A. aglaia, as described above, is widely distributed in 
AVestern China, but in Japan and Corea the species is represented by the 
foUomng form : — 
Var. fortuna, Janson. " Allied to A. ar/laia, the black markings on upperside of primaries 
somewhat similar, but the posterior spot of the inner transverse series much nearer the outer 
margin, being in a line with the discal row, the corresponding spot of which is small and 
also nearer the outer margin, the submarginal row of spots are smaller, and the marginal 
band much narrower ; the secondaries differ in having the inner zigzag band produced into a 
• rather long point on the centre of the wing, which replaces the third spot of the discal 
series ; beneath, the primaries have a greenish apical patch, with three inner and four 
marginal silvery spots ; the secondaries xre greenish, speckled with black ; two small spots 
just beyond the ceU, and a short submarginal fascia ochreous, the silvery spots are disposed 
as in aglaia, except the fourth and seventh of the discal series, which are very small and 
nearer the outer margin, and the marginal spots are larger." (Janson, I. c.) 
Expanse, (5' 68-75 millim., $ 76-80 mdlim. 
This form only differs from the type in being generally larger and brighter on the upper surface ; 
on the under surface the silver spots of secondaries are larger, and those on apical area of 
primaries more distinct. Gcnsan specimens are even brighter than those from Japan. 
In Amurland typical yJ. aglaia occurs in the north and var. fortuna in the 
south. 
Among the specimens from Western China are two examples of the 
fortuna form, but the silver spots on the under surface of secondaries are 
much larger and, with the exception of one at the end of the cell, which is 
quadrate mth a projection from its upper inner angle, more elongate in 
shape ; there are no ochreous spots beyond cell, and the ochreous sub- 
marginal band is very naiTow in the female ; the primaries have five or six 
silver marginal spots. Expanse, d 74 millim., ? SO millim. (Plate XXII. 
fig. G, ? .) 
