Number of records: 42
Recorded in: 28 1km grid squares
Date of most recent record: 24 vii 2024
Identification difficulty
: 2Adult: Can be confused with other species
Resident. Often fairly common to common at mv light in a few woods in West Sussex, but much less frequent in the east. Single-brooded, flying mainly from late May to the third week in July, occasionally from early May. Larvae feed on (silver) birch. (Pratt, 2011)