Local in fens, marshes, river-banks and other damp areas throughout southern England. In Hampshire known only from a handful of sites, including Fleet, Greywell Moors, Southsea and Leckford, but perhaps under-recorded. Not recorded from the Isle of Wight to date. Wingspan 6-7 mm. More frequently recorded in the larval stage, when the mines are fairly easy to find where they are present; the imago can be separated from
P. ramulicola only by dissection of the genitalia. Larva mines leaves of Purple Willow and Crack Willow.