Local on fens, marshes and river-banks in Britain, as far north as Perthshire. Probably under-recorded in Hampshire, where the extent of known records correlate with those areas in which the recording effort is concentrated; distinctly uncommon on the Isle of Wight. Wingspan 5-7 mm. Adults are day-flying, and the species is more frequently recorded in the larval stage, when mines are relatively easy to find where they are present. Larva mines leaves of Alder, over-wintering as a pupa. The mines are described in the following link:
leafmines.co.uk.