The larvae form a case which closely resembles a seedhead of the foodplant.
Waste ground, rough grassland, roadside verges.
Recorded in 7 (2.6%) of the 270 2km squares of Huntingdonshire.
Last recorded in July 2021
Recorded date range (Adult): 03 June to 02 August
Recorded date range (Larva/Leafmine): 22 October to 22 October