54 
PIElilDM. 
fields. It occurs in England, but seems to be confined to the more 
southern parts of the island, and to prefer chalky districts ; it is 
very capricious in its appearance, and does not occur in Scotland 
or Ireland. 
Larva. — Cylindrical, dark green, sprinkled over with black 
dots ; there is a narrow yellow and white lateral stripe. Feeds on 
Leguminosce, principally TrifoUwn, the eggs being laid in the spring 
by hybernated females. 
The Pupa is green, with a brownish yellow lateral stripe. 
PI. XVI. 
VARIETY. 
a. Sareptensis, Stand. This variety resembles the male, but 
has the ground colour of the wings of a deeper yellow, and the 
hind marginal border is broader and darker, and more nearly 
approaches the anal angle of the fore wing. It occurs in 
South Piussia, and is probably a hybrid between the present 
species and the next, G. Erate. The closely allied species of this 
genus occasionally intermingle, the result being hybrid forms, as 
in the present case. 
7. C. Erate, Esp. 119, 3.—Nertenc, Fr. 301, 1, 2; H.-S. 30, 32. 
Expands from 1-50 to 1*75 in. All the wings are pale yellow, 
but brighter than in the last species ; black at the base. Fore wings 
of the male with a tolerably broad hind marginal border, which is 
black powdered with grey, sometimes with light veins, broadest at the 
costa, and reaching quite to the inner margin ; its internal edge is 
less sharply defined than in the succeeding species, and more as in 
C. Hyale. There is a distinct black discoidal spot. Hind wings 
with a distinct black border, well marked, but not very wide. In 
the centre of the wing is a bright orange spot. The female has the 
wings of the same colour as the male, but the borders of all the 
wings have large yellow spots. Under side almost exactly as in 
C. llyale, but the discoidal spot of the fore wings is white in the 
centre, and the hind wings have a greener tint at the base than in 
the last species. Fringes of all the wings, head, antennai, pro- 
thorax and legs, rosy. PI. XII., 4. 
Time op Appearance. — August. 
