(Lienig & Zeller, 1846)
Wingspan c. 15mm.
This species is most frequent in the Highlands of Scotland, although it does also occur on high ground in Wales and Ireland. It is extremely local in England.
It frequents heathland with scattered trees, and flies from the end of May to August, sometimes on sunny afternoons, but more typically towards dusk.
The larvae feed on mosses, living in a silken tube or gallery.