TR1F1D&. 2og 



whose drawings of larva? are figured in this work — used to 

 live, was opposite to a portion of the dockyard at Stonehouse, 

 which was surrounded by a massive wall overgrown with 

 minute lichens ; from his front windows the operations of 

 the sparrows up and down this wall were plainly visible. 

 Hybernation takes place when very small, doubtless in a 

 similar but smaller chamber. 



Pupa apparently undescribed, either in the larval chamber 

 or a loose cocoon among moss, or in a chink of the wall, but 

 so accurately covered with the material of the wall as to be 

 almost undistinguishable. 



The moth sits in the daytime on walls and rocks, and 

 though sufficiently visible to a trained eye, is undoubtedly 

 protected to a great extent from its enemies by its close 

 resemblance to a small patch of lichen. It flies at dusk, and 

 comes readily to sugar in its very restricted localities ; also 

 has been taken at clematis blossom and at light. When 

 attention was first called by Mr. W. Warren to the peculiar 

 form inhabiting Cambridge he found several of his specimens 

 inside houses. This may have arisen from some unusual 

 cause, such as a violent wind ; at least I do not hear that 

 such a habit has been further observed. Common on old 

 walls at Sheemess, Deal, Dover, Folkestone, and probably 

 all coast towns in Kent, and at Brighton, Lewes, Eastbourne, 

 aud elsewhere in Sussex ; more local in Dorset, where it has 

 been found in the Isle of Purbeck ; common again in the 

 coast towns of Devon from Sidmouth to Plymouth ; also od 

 the north coast, and in Cornwall and the Scilly Isles ; more 

 local in Somerset. In this county it is found also inland, at 

 Bath and Wells ; in Wiltshire at Marlborough and Chippen- 

 ham ; and extends into Gloucestershire. The Cambridge 

 locality, already so much alluded to, seems to be quite an 

 isolated out-station, since I know nothing of its occurrence 

 in the surrounding towns, and it is certainly very scarce in 

 the rest of the Eastern district, being recorded as rare in 



VOL. vi. o 



