Incurvaria masculella
Incurvaria masculella, the feathered diamond-back, is a moth of the family Incurvariidae. It is found in Europe. The wingspan is 12–16 mm.Head pale ochreous, ferruginous-tinged. Forewings rather dark purplish bronzy-fuscous ; a whitish triangular dorsal spot before middle, and a smaller one before tornus. Hindwings rather dark grey. The moth flies from April to June depending on the location. The larvae feed on oak, sweet chestnut, "Corylus avellana", "Tilia", "Carpinus betulus", rose, "Vaccinium" and "Crataegus".