Wingspan about13 mm. A very distinctive species, with a striking white patch on each wing.
Various habitats.
The flight period of the adult moths is July and August in a single generation. They are easily disturbed by day and at night can be attracted to light.
The larvae feed on a range of Rosaceous trees and shrubs including hawthorn, rose and apple. They spin two leaves together and feed within, during May and June.
Distributed widely throughout much of Britain, although scarcer in the north. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.