Common in oak woodland, woodland rides and areas with scattered trees throughout much of England and Wales; rare in Ireland and Scotland. In Hampshire and on the Isle of Wight common and widespread. Wingspan 10.5-12.5 mm. Imago very similar to C. lutipennella
. 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 Oak, living within a movable case, , which differs from that of C. lutipennella
in having no
leaf material at the back end of the case.