76 PLATE CLXV. 
The caterpillar of this fpecies is found on the White Thorn, in 
April; in May it becomes a pupa: the moth does not appear before 
September. 
It will be readily conje€tured, from its Englifh name, to be more 
frequently taken about Ealing, in Middlefex, than elfewhere, though 
it is not peculiar, like fome infeéts, to one place only. The cater- 
pillar is fmooth, or without any hairs; it eats ravenoufly, is very 
fluggifh, and forms a fine filky web, in the ground, in which it paffes 
to the pupa flate*. We find the moth very liable to variation in 
colours; in fome fpecimens the green is very brilliant, in others the 
red; and again, in others, the lunar white marks are very con- 
fpicuous. In fome fpecimens, natives of warm countries, we have 
feen them finer coloured than thofe from the northern parts of 
Europe 
* In the plate of this {pecies in Roeel’s German Infeéts, the filky cone of the pupa 
ia drawn in the convex part ef a leaf. 
