Wood, 1892Wingspan 10-12 mm.
Coleophora glaucicolella is widespread and common in Britain, but sometimes goes unrecorded because of confusion with another Juncus feeding species, C. alticolella.
It is often abundant on salt marshes.
Flight period June to August at sunrise, dusk and night.
The adults resemble several other Coleophora species and are most reliably identified by dissection of the genitalia. The full grown larval case is very similar to that of C. alticolella, but the larvae can be differentiated.