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Local in alder carr, woodland and heaths in Britain, as far north as Inverness-shire; recorded in Ireland only from Cos Kerry and Leith. In Hampshire and on the Isle of Wight widely distributed, but rather infrequent with only about two or three records annually. Wingspan 8-12 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 mines leaves of Alder, Hazel, Birch and Hornbeam, living within a movable case.
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