Family: Gracillariidae Sub-family: Lithocolletinae
Flight time: Two generations, May and August
Food plant: Hazel (Corylus avenella)
Mine: July and September-October
Lower side mine between two veins, 15-20mm, with several creases. Upper leaf surface is strongly arched. Pupa in white cocoon, frass heaped in opposite corner.
Photographs: Ballingeary, Co. Cork, SW Ireland. October 2010