BLACK ARCHES. 20? 



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 large, 

 marked in a reticulated manner with flesh-coloured 

 lines, and having a triangular ovai 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 numbers 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 shining brown, and has tufts of hair on the 

 segments, a circumstance which is likewise observ- 

 able in several of the allied genera. 



This 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 OD 

 this side of the Tweed* 



