Local, on chalk downland and limestone pavements, throughout much of southern England and in the Lake District. In Hampshire found locally on the downs. On the Isle of Wight, recorded only occasionally in recent years after an absence of over a century. Wingspan 14-17mm. Identified by the combination of black wings with white fringes and angled cross-lines. Larva feeds on Wild Thyme, Wild Marjoram and Corn Mint, living between leaves spun together with silk, over-wintering as a pupa