LEUCOPHASIA. 483 
Var. vibilia, Janson. " Above creamy-white, the body black, dusted with white : primaries witli 
the basal half of the costa and four short ill-defined longitudinal stripes at the apex dusky 
black ; beneath cream-coloured, the posterior part of the primaries white, the costa broadly 
dusted with black; secondaries strongly dusted black on the anal half and on the costa, 
leaving a narrow longitudinal stripe of the ground-colour, the dusky-black scales becoming 
rather sparse on the apical margin, but are very close, and form an obscure transverse band 
about one third from the apex. 
" Expanse of wings lg-l| inch. Nambu, North Japan. 
" Differs from L. amurensis, Men., besides the colour and markings, in having the primaries more 
acutely pointed at the apes. It is also allied to L. duponcheli. Stand." {Janson, I. c.) 
Var. morsel, Fenton. " Allied to L. (imure7isis. Wings rounder, not produced at the apex : the 
black apical patch lighter: average expanse of L. amurensis, S 1 inch 11 1 lines, $ 2 inches 
3 line; of L. muisei, cJ 1 inch 11 lines, $ 2 inches." (Fenton, I. c.) 
"Iburi, Hokkaido, end of July. Colls. Fenton & B.M. 
" The example sent to us by Mr. Fenton certainly bears out the distinctions laid down in his above 
description ; and I have little doubt that this is a genuine species." (Butler, P. Z. S.) 
This very variable species is common all over Japan and Corea. I have 
received it from the province of Kwei-chow, Western China. All the 
gradations between typical sinapis and var. amurensis occur, but, as a rule, 
all the Eastern-Asian forms are less green and have less marking on the 
under surface. Specimens without any black on apex of primaries, corre- 
sponding with var. erysimi, are not unusual. 
Mursei is a modification of the typical form ; the under surface is whitish, 
and the black spot at apex of primaries above may be large and conspicuous 
or only faintly indicated. Sinensis is a modification of the long-winged 
amurensis form ; the type in the National Collection is -without a head, and 
the apical spot is brown and faded. 
In Amuiiand both sinapis and var. amurensis are common, and occur 
together in the same localities. Graeser states that he never met with a 
specimen which he could consider intermediate between amurensis and 
sinapis; Staudinger also considers these insects to be distinct species, but 
Bremer records intermediate forms from Amurland, and Elwes states that 
such forms exist both in his own and in Mr. Godman's collections. I also 
have intermediate forms in my own collection. 
Alpheraky records L. sinapis from Che-pou, in the province of Ivan-sou, and 
from the plateau of Amdo. He states that the specimens are larger than those 
from Tiu-kestan and Thian-shan, but do not diflPer in other respects. 
Distribution. Europe, Western and Central Asia, Siberia, Amurland, Japan, 
Corea, China, and Thibet. 
