Distribution and Abundance: Rather local.

Primary Habitat: Wetland.

Flight Period: Single brooded in June and July.

Localities: Lings Wood, Pitsford Reservoir, Ashton Wold and Whitewater Reservoir.

Observations: I have always found the moths attendance at light to be rather sparing, but in the past I have found both the larvae and pupae under loose bark on willows along the Slade Brook and the River Ise. Sometimes several larvae have been congregated together. Although mainly a wetland species, returns from the static Pitsford Reservoir light traps for the years 1999-2003 show an annual average of four moths, with none seen in two of the years.

L.O.N.: 1907. Kettering, Sywell. Pupae common under bark of willow.

First Record: 1902, Victoria County History.