144 



The date of the appearance of the caterpillar is in 

 August and September. 



It feeds on the berries of the mountain ash. 



ARGYRESTHIA SEMIFUSCELLA. 

 Plate CXV. Figure 11. 



Localities for this species are York, Scarborough, Bir- 

 kenhead, Bristol, Darlington, Manchester, Pembury. 

 The situations where it is found are hedges. 



O 



The perfect insect appears in August. 



ARGYRESTHIA MENDICELLA. 

 Plate CXV. Figure 12. 



Localities for this species are York, Lewes, Pembury, 

 Neweastle-on-Tyne, Manchester, Kingsbury, Darlington, 

 Bristol, Birkenhead, Cambridge. 



The situations where it is found are among blackthorn 

 bushes. 



The perfect insect appears in the end of May and begin- 

 ning of June. 



The caterpillar is whitish green, the second segment 

 black ; the head black. 



The date of the appearance of the caterpillar is in 

 April, and early in May. 

 It feeds on the shoots of the slo e. 



