Endangered (proposed as a future Red Data Book species) in Hampshire and Kent, where it was rediscovered in 1984, and Yorkshire; recently also found in an urban context in Mynachdy, Cardiff. Not recorded from the Isle of Wight to date. There has been some discussion amongst authors as to the identity of the species found in Britain; formerly it was believed to be Dahlica (Bankesia) douglasii, but presently it is assigned to B. conspurcatella. The adult moths are seen occasionally, but most records are of larval cases. Larva feeds on lichens growing on tree trunks, fence posts and rocks, living within a movable case, over-wintering as a pupa.

Flightime guide
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