A local but expanding species of fens, gravel pits and marshes.

Larvae feed in late summer and autumn in a mine on the leaf of Reedmace and burrow towards the base where they hibernate. In the spring they mine a dead leaf or stem. The pupa resides in the mine.

The adults fly over water at dusk then later again at night when they will come to light.

Recorded in 63 (45%) of 140 10k Squares. First Recorded in 1952. Last Recorded in 2022. (Data up to end 2022) Additional Stats

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