Local in hedgerows, open woodland, fens and downland throughout much of England and Wales, more numerous in the south. In Hampshire and on the Isle of Wight there are scattered records throughout, with no apparent population centre. Wingspan 10-13 mm. The pale tarsi that gives the species its scientific name are a ready means of recognition. Larva mines leaves of Wild Basil, Wild Marjoram, Self-heal, Ground-ivy and Mint, living within a movable case; case length 9 mm.