This species is very similar to C. alchimiella but has a shorter and less clearly defined yellow blotch on the forewing. Genital dissection is necessary for a conclusive identification, although the first generation appear around three weeks before C. alchimiella.
The larvae create a short gallery mine which later becomes a blotch. They then form up to three cones at the edge of the leaf.
Woodland, heathland and scrub.
Recorded in 49 (18.1%) of the 270 2km squares of Huntingdonshire.
Last recorded in August 2018
Recorded date range (Adult): 21 February to 24 October
Recorded date range (Larva/Leafmine): 26 June to 23 October