Nationally scarce (Nb) in marshes, river-banks, ditches and other damp areas throughout Britain, discontinuously north to Dunbartonshire. In Hampshire increased interest in recent years in micro-lepidoptera has uncovered a number of sites in the south-east and north-east of the county, so it is perhaps more widespread than previously known, or possibly increasing in range. Recorded for the first time on the Isle of Wight at Freshwater in 2011. Wingspan 12-14 mm. Larva mines leaves of Alder, make distinctive conical leaf-folds.