Food Plant: Acer pseudoplatanus (Sycamore) only.

Mine: Univoltine: early summer.

Notes: A large, upper surface marginal blotch, usually going brown and with an excised hole, where the pupal disc detaches (as shown), which is characteristic of Heterarthrus species. A widespread miner of Sycamore

Data: 21.vi.2014, Wijnendale bos, Torhout, (Oost Vlaanderen)

Image:© Carina Van Steenwinkel