Common resident.

Adults can be swept from small Birches Betula spp. in March and April. Larval mines are very common in early May.

A blotch mine with long strands of frass and green matter left within. Larvae with white head and smaller than E. semipurpurella, with often several(2-4) in the same mine.

Verification Grade Comment: Mine: Reared or larval morphology

	Determination by Genitalia Examination (gen. det.) Required

	Mine: Moth needs to be reared and, in some cases, possibly dissected.

Recorded in 46 (33%) of 140 10k Squares. First Recorded in 1887. Last Recorded in 2020. (Data up to end 2022) Additional Stats

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