Food Plant: Betula spp. (Birch)

Egg: under the bark of young twigs

Mine: July - August

Notes: The mine in the petiole and midrib leads to an oval blotch, then a cut-out in leaf-blade (as shown).

Data: 11.x.2009, Pamber Forest, Hants, VC12, John Langmaid

Image:© Rob Edmunds