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GRACILLARIA ELONGELLA. 
Plate CXVI. Figure 20. 
Localities for this species are York, Scarborough, 
Lewes, Market Harborough, Warrington, Dublin, Bir¬ 
kenhead, Cambridge, Darlington, Newcastle-on-Tyne, 
Manchester, Tenterden. 
The perfect insect appears in June and October. 
The caterpillar is dull whitish, with a dark grey line 
along the back; the head pale brown. 
The date of the appearance of the caterpillar is in 
May, July, and August. 
It feeds on the birch and the alder. 
GRACILLARIA TRINGIPENNELLA. 
Plate CXVII. Figure 1. 
Localities for this species are York, Scarborough, 
Brighton, Alkham, Bristol, Cambridge, Darlington, 
Kingsbury, Manchester, Newcastle-on-Tyne, Pembury, 
Dawlish. 
The situations where it is found are in meadows. 
The perfect insect appears in May and August. 
The caterpillar is whitish green, the second segment 
brownish on the upper part; the head black. 
The date of the appearance of the caterpillar is in 
June and July, and another brood from October to 
March, April, and May. 
It feeds on the plantain (Plantago lanceolata). 
