Local in hedgerows and waste ground throughout much of southern England and Wales, with records north to Yorkshire. In Hampshire the majority of records are from Portsea and Hayling Islands, with scattered records elsewhere across our two counties. Wingspan 11-14.5 mm. Candidates for this species can be picked out by the yellow-ochreous wing veins, but is more easily verified at the larval stage with its distinctive case made of rings of mined leaf, fully developed in May. Larva mines leaves of labiates, in particular Hedge Woundwort and Black Horehound, but also uses White Horehound and Betony.