The larvae feed in the bark of the foodplant, exuding red frass from crevices. The larval workings are easily found but the adults are seldom seen.
Recorded in 14 (5.2%) of the 270 2km squares of Huntingdonshire.
Last recorded in April 2021
Recorded date range (Adult): 25 May to 15 July
Recorded date range (Larva/Leafmine): 05 April to 18 July