Nut-tree Tussock Colocasia coryli
Wingspan 27-35 mm.
Fairly common in Southern Britain; more local further North, frequenting mainly woodland.
The larvae feed on a variety of deciduous trees, e.g. Hazel, Birch and Hornbeam.
The adult is on the wing from April to June and July to September in the south (double brooded); May to June in the north.