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ARGYRESTHIA CURVELLA. 
Plate CXY. Figure 18. 
Localities for this species are Scarborough, Brighton, 
York, Tenterden, Pembury, Kingsbury, Darlington, 
Cambridge, Bristol. 
The situations where it is found are among apple 
and pear trees. 
The perfect insect appears in June and July. 
The date of the appearance of the caterpillar is in 
May. 
It feeds on the shoots of the apple. 
ARGYRESTHIA SORBIELLA. 
Plate CXY. Figure 19. 
Localities for this species are York, Scarborough, 
Market Harborough, Bristol, Manchester. 
The perfect insect appears in June and July. 
The date of the appearance of the caterpillar is in 
May. 
It feeds on the leaf buds of the mountain ash 
(Sorbus aucuparia ), and the white beam-tree (Sorbus 
aria). 
ARGYRESTHIA PYGMiEELLA. 
Plate CXY. Figure 20. 
Localities for this species are Lewes, Scarborough, 
Market Harborough, Bristol, Birkenhead, Cambridge, 
