Heinemann & Wocke, 
Wingspan 12-14 mm.
A local species, inhabiting saltmarshes around the coast of England and parts of Wales.
The larvae feed on glasswort (Salicornia spp.), and are difficult to find except for a short period when their cases are visible in autumn. Subsequently the larva burrows into the mud to spend the winter in a silken tube.
The relatively plain, buffish adults emerge from the mud in late July or August, and can roam inland, where they may be attracted to light.