Distribution and Abundance: Fairly common.

Primary Habitat: Woodland.

Flight Period: Single brooded in March, April and May.

Observations: Returns from the woodland Fineshade Rothamsted light trap for seven years in the 1990’s show an annual average of nine moths with an overall flight period from 5 March to 27 May. Occasionally the moth appears earlier than this as at Pitsford Water in 2002 when an example was taken in the light traps on 24 February. In my experience the moth is more numerous in the county’s southern woodlands.

L.O.N.: 1907. Near Great Oakley, King’s Cliffe, Daventry. Not common.

First Record: 1902, Victoria County History.