384 LTC^NID.^. 
in both sexes ; the ground-colour is reddish brown, brightest in the female ; the fore wings 
have an elongated discoidal spot, and external to this, reaching from the costa, a long 
tapering streak of a darker colour, coming to a point as it approaches the inner margin and 
bounded externally by a white line ; the hind wings have a patch of bright reddish brown 
running from the costa to the inner margin, bounded internally by an indistinct white line 
and externally by a very distinct wavy line of the same colour; the hind margins are 
reddish orange. 
" Larva, when fuU-growu, is apple-green ; the segments are very definitely divided, and each 
segment has four longitudinal white stripes, two dorsal and two lateral, and besides these 
several oblique pale lines. The head is brown, and very much smaller than the segment 
immediately posterior to it. 
" P„pa. — Pale brown and smooth, not attached by silken threads ; in this manner resembling the 
pupa of T. qiiercus, which also does not attach itself by the head and tail." {Lane/, 1. c.) 
Z. hetulcB is represented in China by a large form, which I now describe 
Vnr. crassa, var. nov. (Plate XXVIII. fig. 11, $ .) Male. Agrees exactly in colour with dark 
specimens of the same sex from Europe, but the tails are longer and more slender. The 
female differs only from European examples of the same sex in having longer tails. On the 
under surface there is no difference, except that the black spot above the tail is always 
distinct and the outer transverse line of secondaries is rather less angulated. 
Expanse, 3 54 millim., $ 56 millim. 
This form occm-s at Moupin, Western China, in July. 
Var. elwesi, Leech. (Plate XXVIII. fig. 8, J.) Male. Fuscous-brown, the discal area of 
primaries tinged with orange-brown, especially beyond the black bar which closes the 
discoidal cell. Secondaries with some black spots and orange marks on outer margin at 
anal angle ; tail reddish orange, edged with blaclc and tipped with white. Under surface as 
in var. crassa. 
Female. Orange-brown, clouded with greyish brown towards the base of all the wings, apex and 
outer margin black ; a black spot on secondaries in second median interspace ; fringes 
whitish, grey at the base and, on the secondaries, at the extremities of nervules. 
Expanse, ^ 50 millim., $ 54 millim. 
I have received examples of this form from Chang-yang and Ichang, Central 
China, and from Moupin in Western China. Occurs in July and August. 
When I described elwesi as a distinct species, I supposed that the larger 
size and different coloration of upper surface were of specific value ; but since 
receiving other specimens, not only of elwesi but also of crassa, from Moupin, 
I am now inclined to consider both as exaggerated forms of Z. betulw. 
Zepliyrus ssepestriata. 
Dijjsas .^iC'jtc.slr/afji, Hewitsou, 111. Diurii. Lep. p. 67, pi. xxvi. figs. 7, 8 (1865) ; Pryer, 
Rhop. Nihon. p. 13, pi. iv. fig. 5 (1886). 
