Common near buildings and around dry-stone walls throughout England, Wales and southern Ireland. Widespread and common in Hampshire. Recorded on the Isle of Wight for the first time since 1893 at Freshwater in 2009. Wingspan 11-14 mm. A light coloured species with slender forewing, contrasting markings and with the first discal above the second plical stigma, extremely pale forms of
B. dryadella are distinguished from
B. domestica by the much darker hindwing (MBGBI Vol 4 part 2). Larva feeds on various mosses, often on walls, living within a silken gallery.