ZEPIIYEUS. 379 
Under surface in both sexes quite difTerent in colour and markings to the other species. It 
is mother of pearl (silver), shining -n-hitish gre}', similar to that of si/la, KolL, from N. India. 
The fore ■wings have beyond the middle a strong dark brownish-grey streak, and beyond this a 
somewhat broad dark curved band from eosta to first median ; before the outer margin is a 
double series of dusky lunules." (Stauclinr/er, I. c.) 
Male. Bluish green ; secondaries broadly bordered with black. Fringe whitish. 
Female. Brownish ; primaries rather paler on disc, and with some pale spots beyond the discoidal 
cell. 
Under surface pale bluish white in the male, and whitish grey in the female ; the primaries have 
the following dusky maikiiigs : a bar at the outer extremity of the discoidal cell, an oblicjue 
dusky baud burdered uutwanlly with white, and a submargiual scries of spots ; secondaries 
have a discoidal bar and interrupted dark grey central band bordered with whitish ; there is 
a double whitish wavy submarginal line and a line of the same colour parallel with outer 
margin; a black spot bordered with fulvous at anal angle, and above it there is another black 
spot surrounded with fulvous in the first median interspace. 
Expanse, J 3G-3S millim., $ 31-38 millim. 
Graeser states that the larva feeds in June on Quercus mongolica. 
This insect, wliich is described by Staudinger from the coast region of 
Amurland, also occurs in Yesso ; there was a large series in the late Henry 
Fryer's collection from the latter locality. Dr. Fixsen records a female 
specimen from Corea, taken in July. 
Zephyrus hecale, sp. nov. (Plate XXVII. figs. 1 ? , 2 ^ .) 
Male. Of the same green colour as T. ia.rila, but much suffused with blackish in certain lights ; 
the black marginal borders of the primaries are very broad, and those of the secondaries still 
broader, the abdominal margin of these wings is also broadly blackish ; the primaries have an 
elongate black discoidal spot. Under surface similar in colour and pattern to that of 
Z. iarihi, but the white markings are silvery and more slender ; the primaries have a dark 
discoidal spot bordered with silvery white, the central line of secoudaries forms a more 
distinct W before reaching abdominal margin, and the inner submarginal line on these wings 
is not well defined ; the tails are rather longer. 
Female. Blackish ; the primaries have an orange spot at the outer extremity of discoidal cell, and 
one between it and the outer margin intersected by the third median nervule. Under surface 
as iu the male, but the central lines are rather wider. 
Expanse, d 42 milUm., $ 38 millim. 
The male of this species was taken at Wa-ssu-kow in July, at an elevation 
of 5000 feet, whilst two females were captured at Ta-chien-lu in July, at 
about 8000 feet. 
This species is also allied to Z. (T.) tsangkie, Oberthiir, but the male has 
no purplish blue at angle of secondaries, and the female -is not marked with 
blue on upper surface ; the orange markings on primaries are more like those 
