Nationally scarce (Nb) in woodland and open moorland in parts of south-western England, the west Midlands, Wales, Scotland and Ireland. Not recorded in Hampshire or on the Isle of Wight to date. Wingspan 9-14 mm. Like many of the Coleophora, imagines are virtually impossible to identify without recourse to dissection, and the larvae, which live in cases of characteristic form and which can sometimes be found on the foodplant, may be easier to identify by comparison against a reference collection. Larva feeds on flowers and seeds of Great Wood-rush, living within a movable case, over-wintering twice.