Morley's Final Catalogue: Surprisingly infrequent; usually singly. Ipswich, Needham, Stowmarket (ante 1890). Belstead in 1895 (Hkg); Bentley Woods and two in Ipswich (Baylis); a very few at electric light there in 1893-5 (Mly), and one in 1901 (Pyett).
Recent Suffolk Status: Very local. Some evidence of a recent decline.
Life history: Single-brooded. Mostly recorded at light in small numbers, but at one extensive woodland site near Hadleigh it has been seen in big numbers in recent years. A few larval records have been recorded from Suffolk, on Sallow.
Identification: Looks superficially like one of the minors, but they all lack a basal streak.
Habitat: Woodland, marshes, river valleys.
Recorded in 32 (55%) of 58 10k Squares. First Recorded in 1893. Last Recorded in 2026. Additional Stats
