From a rarity at the start of the millennium, it is now becoming fairly common.

Alnus glutinosa and occasionally A. incana or A. cordata with larva feeding in May/June and August/September. At first in a blotch on the underside of a leaf, later in a small fold on the margin. Pupates in a white cocoon in a folded down leaf edge.

	Retained Specimen / Photograph will be Required.

	Mine: Either the leaf or a good photograph required

Recorded in 30 (21%) of 140 10k Squares.
First Recorded in 1887.
Last Recorded in 2022.
(Data up to end 2022)