113 
The caterpillar is blackish, with two yellowish white 
lines along the back ; the side line yellowish white ; the 
spots blackish ; the head blackish. 
The date of the appearance of the caterpillar is in May. 
It feeds on the birch. 
PIIYCIS CARBON AR1ELLA. 
Plate LXXX. Figure 8. 
Localities for this species are Exeter, Manchester, 
York, Scarborough. 
The situations where it is found are heaths and moors. 
The perfect insect appears in June and July. 
PIIYCIS ADELPHELLA. 
Plate LXXX. Figure 9. 
Localities for this species are Darenth Wood, Ripley. 
The situations where it is found are woods. 
The perfect insect appears in June. 
The caterpillar is whitish, with several stripes of a paler 
colour ; the spots black. 
The date of the appearance of the caterpillar is in 
September. 
It feeds on the willow and the poplar. 
