Fairly common resident.
Flies May/June with larva feeding from July to October in a seed pod of Cardamine pratensis, Alliaria, Sisymbrium officinale, Barbarea vulgaris etc.
Then feeding on lower leaves of the foodplant in a case.
Flies in the sunshine and sits on a flower of the foodplant.
In damp meadows and woodland rides, and along hedgerows and
roadsides.

Recorded in 82 (59%) of 140 10k Squares. First Recorded in 1887. Last Recorded in 2023. (Data up to end 2023) Additional Stats

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