Food Plant: Carpinus betulus (Hornbeam)

Egg: Underside of leaf

Mine: June-July, September-October

Pupa: Under the folded leaf edge, in a cocoon

Notes: The initial mine expands to form a full depth blotch. It resembles Phyllonorycter tenerella - but has a mottled lower surface. It then forms two folds. The blotch and two folds are shown.

Data: 17.vii.2021, Aston Rowant, Oxfordshire, VC23

Image:© Will Langdon