Local in woodland throughout south-eastern England. In Hampshire widely, but thinly, distributed across most of the county, but remaining extremely rare on the Isle of Wight. Wingspan male 4.2-5.0 mm, female 4.6-5.6 mm. Easily separated from all other Ectoedemia species by characteristic pattern of three white spots on forewing: a costal, a dorsal and a discal spot (MBGBI Vol 1). Larva mines leaves of Pedunculate Oak, often in fallen leaves, over-wintering as a pupa.