BLACK ARCHES. 
207 
The caterpillar is brown, beset with numerous 
tubercles supporting tufts of greyish hairs. On the 
second segment there is a heart-shaped black spot 
followed by two white ones ; the head is lai-ge, 
marked in a reticulated manner 'with flesh-coloured 
lines, and having a triangrdar oval spot in the 
middle of the forehead ; the membranous legs and 
belly light green. It feeds on the oak, birch, 
bramble, &c. ; and is said occasionally to appear in 
such munhers in certain districts of Germany, as 
entirely to strip the pine forests of their foliage. 
The chrysalis, which is enveloped in a slight cocoon, 
is of a sliining brorvn, and lias tufts of hair on the 
segments, a circumstance which is likewise observ- 
able in several of the allied genera. 
Tliis pretty moth is not generally distributed, 
but has been found in some plenty in certain locali- 
ties, such as the New Forest, some parts of Kent, 
Surrey, &c. It does not seem to extend far to the 
north, and we have never heard of its being seen on 
this side of the Tw’eed. 
