Fairly common resident.

Sorbus spp. especially acupauria, and Malus spp. with larva feeding in July and August/September. In an inflated blotch on the underside of a leaf and then under a silken membrane, either folding over the edge of a leaf or puckering up the leaf into a narrow fold.

	Determination by Genitalia Examination (gen. det.) Required

	Mine: Either the leaf or a good photograph required

Recorded in 65 (46%) of 140 10k Squares. First Recorded in 1887. Last Recorded in 2023. (Data up to end 2023) Additional Stats

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