Nationally scarce (Nb) in saltmarshes on the coast of England and Wales from Cumbria to Suffolk (MBGBI Vol 3). In Hampshire and on the Isle of Wight exclusively confined to the coast, where declining, and now largely restricted to the south-east of the county. Wingspan 8-11 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 within seed capsules of Saltmarsh Rush, living within a movable case.

Flightime guide
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