Wingspan 10 to 12 mm. The adults resemble several other Coleophora species and are most reliably identified by dissection of the genitalia.
To be found close to areas with Juncus species of rush. It is often abundant on salt marshes.
Flight period June to August at sunrise, dusk and night.
The full grown larval case is very similar to that of C. alticolella, but the larvae can be differentiated.
Coleophora glaucicolella is widespread and common in Britain, but sometimes goes unrecorded because of confusion with another Juncus feeding species, C. alticolella. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.
It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).
Leicestershire & Rutland Map
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