Food Plant: Asplenium ruta-muraria (Wall-rue), Phyllitis scolopendrium (Hartstongue), Polypodium vulgare (Common Polypody)

Mine: early Summer, Autumn

Notes: Forms a long narrow mine (up to 10cms). It is normally greenish and uppersurface.

Data: 10.iv.2005, Storth, Cumbria, VC69

Image:© Robert Homan