Food Plant: Alnus sp. (Alder), Betula sp. (Birch)

Egg: Underside of leaf

Mine: Early Summer

Notes: Initially a gallery is formed which runs towards the leaf edge from a vein. The mine then becomes a blotch and a spherical cocoon develops in this. The mine is brown. Mine shown, with newly emerged adult, on Alnus sp.. An uncommon UKBAP species.

Data: 22.vi.2023, Downham Market, Norfolk, VC28

Image:© Rob Edmunds