
LEPIDOPTERA. 187 

a few species of the genus, namely, the Lycena (Polyommatus) 
Corydon, or blue Argus (Fig. 155), which is not uncommon where- 
ever there is chalk, in May and August ; the Lycena (Polyommatus) 






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—— 
Fig. 155, —Lyczena (Polyommatus) Corydon. 
| battus, or brown Argus (Fig 156), which does not occur here; the 
Lycena (Polyommatus) egon, which flies about our sandy heaths. 
| The caterpillars of this genus, as also those of the preceding, 






Fig. 156.—Lyczna (Polyommatus) battus. Fig. 157.—Lycena (Polyommatus) egon. 
are broad and flat, resembling wood-lice, with very short legs, and 
are very slow in their movements. 
In the numerous family of the Vanessid@ are placed the beau- 
tiful species known as the large and small Tortoise-shell, the Pea- 
cock, &e. 
The large Tortoise-shell butterfly (Vanessa polychioros, Fig. 158) 
has wings of a tawny colour above, and of a blackish brown below, 
with darker spots, bordered by a black band, with a stripe of 

* 
S BREST Se 
SSS ee 
ose = wee Ss 
