This is a distinctive but variable species.
The larvae initially form a contorted blotch mine with black frass, before creating two successive cones formed by folding the tip of a leaf downwards.
Recorded in 87 (32.2%) of the 270 2km squares of Huntingdonshire.
Last recorded in September 2020
Recorded date range (Adult): 11 April to 04 November
Recorded date range (Larva/Leafmine): 07 August to 11 November
Recorded date range (Pupa): 23 October to 23 October