This is a very variable species. Well-marked specimens are characterised by the well-defined basal patch. The moth is often to be found resting openly, sometimes in large numbers.
Recorded in 67 (24.8%) of the 270 2km squares of Huntingdonshire.
Last recorded in August 2020
Recorded date range (Adult): 02 April to 13 September
Recorded date range (Larva/Leafmine): 26 April to 26 April