39 
SW AMMERD AMI A CjESIELLA. 
Plate Cl. Figure 19. 
Localities for this species are near Lewes. 
The situations where it is found are hedges. 
The perfect insect appears in June and in August? 
The date of the appearance of the caterpillar is in 
September. 
It feeds on the birch. 
SWAMMERDAMIA GRISEOCAPITELLA. 
Plate Cl. Figure 20. 
Localities for this species are Lewes, Torwood. 
The perfect insect appears in June. 
The date of the appearance of the caterpillar, which is 
almost gregarious, is in September. 
It feeds on the birch. 
SWAMMERDAMIA LUTARELLA. 
Plate CII. Figure 1. 
Localities for this species are near Lewes. 
The perfect insect appears in July and August. 
SWAMMERDAMIA PYRELLA 
Plate CIL Figure 2. 
Localities for this species are Lewes, Market Har 
borough. 
