Food Plant: Acer campestre (Field Maple), A.pseudoplatanus (Sycamore), Acer platanoides (Norway Maple) Elsewhere: A.saccharinum (Silver Maple)

Egg: Underside, usually close to a vein.

Mine: June-July

Pupa: In a silken cocoon on either side of lea

Notes: Early mine a gallery leading to a squarish blotch (as shown). Later forms up to three successive tubes or cones by folding the tips of leaves downwards. Mines shown on Acer campestre.

Data: 28.v.2011, Aberedw, Radnors., VC 43

Image:© John Langmaid