Wingspan about 18 to 20 mm.

Preferring damper habitats such as river banks, bogs and water meadows.

The adults fly mainly in July and August.

The larvae feed on White Willow (Salix alba) and Crack-willow (Salix fragilis), spinning two or more leaves together and feeding within.

A local species, distributed widely but scarcely throughout much of southern England and Wales, and extending northwards to Lancashire. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as Nationally Scarce B.

It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).