This is one of three species in which the adults can only be reliably identified by genital dissection.
The larvae produce a long, irregular gallery mine.
Recorded in 36 (13.3%) of the 270 2km squares of Huntingdonshire.
Last recorded in October 2017
Recorded date range (Adult): 20 July to 22 August
Recorded date range (Larva/Leafmine): 25 June to 03 November