Fairly common resident.

Betula spp. with larva feeding in May and July initially in a blotch in a leaf and then in cones made by transversely rolling the leaf.

Verification Grade Comment: Adults cannot reliably be separated from C. elongella except by genitalia examination.

	Determination by Genitalia Examination (gen. det.) Required

	Mine: Either the leaf or a good photograph required

Recorded in 60 (43%) of 140 10k Squares.
First Recorded in 1927.
Last Recorded in 2023.
(Data up to end 2023)