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 .
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Larval |
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