24 PLA TE CUxXxoax, 
under one fpecific name. In his laft work, Entomologia Syflematica, 
he has divided them, leaving the P. lubricipeda under its formér 
name, and giving the fpecific name Menthraftri to the white fort, as 
had been done in Wien. Verz. 54. 2. Fabricius mentions it as a 
native of Germany, but from the figure of Roefel no doubt can be 
entertained of its being precifely the fame as our Englith fpecies. 
The Caterpillars of both forts are very general feeders ; they will 
eat, oak, fruit trees, and wild plants of almoft every kind. ‘They 
are common in the fummer, change to chryfalis about Auguft, and 
appear in the winged ftate in May and June; but, there is more 
than one brood of them in the courfe of the year, fo that the time 
of their appearance is uncertain. ‘The Caterpillars change their 
fkins often; and change their colours at the fame time. ‘Thofe of 
Phalana Menthraftri when fmall are a very light tranfparent brown s. 
then brown with dark ftripes. It is not black till it is in the laf 
~ {kin ; and then, in many, the colour inclines to brown. 
PLATE 
