Very common resident.

Mining the leaves of Quercus spp. with larva feeding in July and from September to November. In a gallery mine with variably dispersed frass; in the summer generation with a short line of thick frass, but often in a longer mine with linear frass in the autumn (cf. mine of S. robella). Ovum may be on either side of the leaf.

Verification Grade Comment: Second brood L. If larva present, otherwise unidentifiable

	Mine: Either the leaf or a good photograph required

Recorded in 57 (41%) of 140 10k Squares.
First Recorded in 1887.
Last Recorded in 2022.
(Data up to end 2022)