The forewings are brown, darker along the costa, and are marked with distinctive pale fascia and a whitish tornal spot. Melanic forms are quite frequent. The wingspan is 17-20 mm. Two broods are produced each year with the moths flying in May and June and again in August .
Chinery, Michael Collins Guide to the Insects of Britain and Western Europe 1986 (Reprinted 1991)
Skinner, Bernard Colour Identification Guide to Moths of the British Isles 1984