Newcastle-on-Tyne, Kingsbury, Darlington, Cambridge, 

 Bristol, Birkonhead, 



The situations where it is found are among birch trees. 



The perfect insect appears in June and July. 



The date of the appearance of the caterpillar is in 

 March and April. 



It feeds on the young shoots of the birch. 



ARGYRESTHIA ARCEUTHINELLA. 

 Plate CXVI. Figure 3. 



Localities for this species are Market Harborough, Bristol, 

 Sanderstead, Mickleham. 



The perfect insect appears in May. 



The date of the appearance of the caterpillar is in April 

 and May. 



It feeds on the shoots of the juniper. 



ARGYRESTHIA PR^ECOCELLA. 



Plate CXVI. Figure 4. 



Localities for this species are near Sanderstead. 

 The situations where it is found are among juniper 

 bushes. 



The perfect insect appears in May. 



