Local in woodland and heathland throughout much of southern and western Britain, north to the Lake District. In south Hampshire and on the Isle of Wight, well-distributed and relatively common, but distinctly uncommon in north Hampshire, where mainly confined to the north-eastern heaths where the foodplant grows in abundance. Wingspan 4-4.6 mm. Best identified from the larval mines on Birch, over-wintering as a pupa. The mines are described in the following link:
leafmines.co.uk.