237 



The situations where it is found are among whitethorn. 



The perfect insect appears in May and August. 



The date of the appearance of the caterpillar is in 

 July and September. 



It feeds on the under side of the leaf of the whitethorn, 

 and the apple ? 



LITHOCOLLETIS CORYLELLA. 

 Plate CXXV. Figure 18. 



Localities for this abundant species are York, 

 Scarborough, Lewes, Market Harborough, Manchester, 

 Newcastle-on-Tyne, Pembury, Darlington, Bristol, Bir- 

 kenhead, etc., etc. 



The situations where it is found are among nut 

 trees. 



The perfect insect appears in May, July, and 

 August. 



The date of the appearance of the caterpillar is in 

 July and September. 



It feeds on the leaf of the nut, the upper side. 



LITHOCOLLETIS SPINICOLELLA. 

 Plate CXXV. Figure 19. 



Localities for this species are York, Scarborough, 

 Pembury Newcastle-on-Tyne, Manchester, Bristol, Dar- 

 lington. 



