63 
It feeds on the blackthorn, wild plum, or sloe. 
The chrysalis is enclosed in a web attached to a stem. 
TRIFIDiE. 
BOMBYCIFORMES. 
THYATIRA DERASA. 
BUFF ARCHES. 
Plate XL. Figure 1. 
Localities for this species are York, Doncaster, Sutton- 
on-Derwent, Charmouth, Bristol, Faversham, Brighton, 
Canterbury, Dartford, Dorking, Clapham, Peterborough, 
Rotherham, Black Park, Arundel, Barnstaple, Gloucester, 
Monks Wood, Llanelly, Durham, Killarney, Birkenhead, 
Burton-on-Brent,Cambridge, Lower Guiting, Kingsbury, 
Huddersfield, Exeter, Worthing, Lyndhurst, Worcester, 
Tenterden, Scarborough, Shrewsbury, Stowmarket, Man¬ 
chester, Plymouth. 
The perfect insect appears in June and July. 
The caterpillar is fine dark brown, with a conspicuous 
white spot on each side of the fifth, sixth, and seventh 
segments. 
The date of the appearance of the caterpillar is in 
September. 
It feeds on the bramble. 
