Food Plant: Alnus (Alder), Betula (Birch), Corylus (Hazel)

Mine: September to October, feeding again in April and May.

Notes: Larva mines leaves. The case is enlarged several times by mining a leaf-edge and inserting the existing case into the mine which is joined with silk. The final case is 7-8mm long.

Data: 20.v.2021, Aston Rowant NNR, Oxfordshire, VC23

Image:© Will Langdon