Food Plant: Betula (Birch)

Mine: July, September - October

Notes: The mine is 10-15mm long, 1-6 creases in lower epidermis.  Mines on young suckering growth of a birch growing on chalk downland. ID confirmed by examination of the cremaster.

Data: 18.x.2022, Aston Rowant NNR, Oxfordshire, VC23

Image:© Will Langdon