138 DUKE OF BURGUNDY FRITIEEARY. 
teen or fifteen lines. The surface is dark brown, the 
upper wings with three transverse series of irregular 
spots of light yellow or straw colour, the outer or 
marginal row having a black mark in the centre of 
each spot : the hinder wings have likewise an irregu- 
lar transverse series of yellow spots, and the margin is 
similar to that of the other pair. The under side 
is much paler than the upper, approaching some- 
times to orange, the superior wings with several light 
spots on the disk, interspersed with black streaks, 
and a series of light spots along the margin, with a 
small dusky mark in the centre of each ; besides 
having the margin similar, the hinder wings have 
two pale bands, composed of continuous oval spots, 
the outer one edged internally with black. The 
anteniue are white, marked with black above, the 
club black, tipped with orange. 
According to Hiibner, the caterpillar is long, oval, 
and depressed, resembling those of the Lycance, 
which, from their resemblance to wood-lice (Onisci), 
are named onisciform. It is of a pale olive-brown 
colour, with a large black dot on each segment, and 
the head and legs rusty-red. It feeds on the Cow- 
Blip and Primrose. The butterfly appears to be 
somewhat local, but it occurs not unfrequently. 
Coombe and Darenth woods have occasionally af- 
forded it in abundance, and it has been found in 
most of the south-eastern counties of England. We 
have not heard of its occurrence to the north of Car- 
lisle, in the neighbourhood of which it has been taken 
by Mr Heysbam. 
