33 
The perfect insect appears in July, August, and 
September. 
The caterpillar is pale yellowish white, with a dark line 
along the back ; the side line whitish, edged on its upper 
part with grey. 
The date of the appearance of the caterpillar is June, 
it feeds on the aspen. 
CIDARIA POPULARIA. 
THE POPLAR CARPET. 
Plate XXXIV. Figure 15. 
Localities for this species are York, Huddersfield, Dar¬ 
lington, Isle of Man, Brighton, Pembury, Storeton near 
Birkenhead, Newcastle-on-Tyne, Manchester, Faversham, 
Tenterden, Barnstaple, Lynton, West Looe, Stowmarket, 
Edinburgh, Glasgow, Arran, Inverness, Waterford. 
The situations where it is found are woods and wooded 
lanes. 
The perfect insect appears in July and August. 
The caterpillar is pale green, with a reddish line along 
the back, broadest at the inner edge of each segment. 
The date of the appearance of the caterpillar is in May. 
It feeds on the sallow and the bilberry. 
F 
VOL. II. 
