Vulnerable (proposed as a future Red Data Book species) in woodland in parts of Gloucestershire and Worcestershire, a priority species under the UK Biodiversity Action Plan. Not recorded in Hampshire or on the Isle of Wight to date. Wingspan 8.5-9 mm. Similar to
P. comparella, in which the white areas are less heavily irrorate with scattered fuscous scales (MBGBI Vol 2). Larva mines leaves of Aspen, preferring young trees, over-wintering as a pupa in a cocoon.