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LITHOCOLLETIS KLEMANELLA. 
Plate CXXVII. Figure 6. 
Localities for this species are in the “ Lake district,” 
Delamere Forest, etc. 
The situations where it is found are among alders. 
The perfect insect appears in May, June, 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 alder. 
LITHOCOLLETIS SCHREBERELLA. 
Plate CXXVII. Figure 7. 
Localities for this excessively abundant species are 
Scarborough, Lewisham, Manchester, Bristol. 
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 elm, on the under side of the leaf. 
The chrysalis is of a bluish green colour. 
LITHOCOLLETIS TRISTRIGELLA. 
Plate CXXVII. Figure 8. 
Localities for this species are near Lewes. 
The situations where it is found are among elms. 
The perfect iusect appears in May and August. 
