Norfolk status
Scarce.

Adult moth rarely seen unless bred, as does not come readily to light. All Norfolk records are of leaf-mines on Birch.

Leaf-mine: September - October
A large mine, 15-20mm long, more than six creases, in the lower epidermis.

	Determination by Genitalia Examination (gen. det.) Required

	Mine: Either the leaf or a good photograph required

Recorded in 8 (11%) of 74 10k Squares. First Recorded in 1874. Last Recorded in 2016. Additional Stats

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