Distribution and Abundance: Common.

Primary Habitat: Woodland.

Flight Period: Double brooded in May and June and again in August.

Observations: There were few records of this moth until the 1950’s when m.v. light trapping showed it to be well established in birch woodland. In the eight years to 2000 only three examples were attracted to the Fineshade Rothamsted light trap sited away from birch, whereas on 25 May 1996 the moth was numerous at m.v. lights run alongside a birch wood within the woodland.

L.O.N.: Undated. Castle Ashby.

First Record: 1882, Hull & Tomalin.