This species resembles lighter forms of A. semifasciana, but has a narrower forewing, a whiter ground colour and a dark suffusion along the dorsum.
River banks, bogs and water meadows.
Recorded in 21 (7.8%) of the 270 2km squares of Huntingdonshire.
Last recorded in September 2018
Recorded date range (Adult): 06 June to 11 September