Host plants:
The larvae feed on willows (Salix). I recorded them on Salix caprea and S. cinerea in the eastern Swabian Alb and on Salix eleagnos at the river Lech in northern Tyrol (Forchach).
Habitat:
Pterapherapteryx sexalata inhabits most often humid, willow-rich habitats like clearcuts, wetlands, lakes or river banks.
Life cycle:
The pupa hibernates and the moths occur most probably in only one, but very prolonged generation between late April and late August or early September (if really only one generation?). Thus larvae should live between June and October, but I recorded them so far only in September.
Remarks:
Pterapherapteryx sexalata occurs from west Europe to Sibiria, but misses largely in the Mediterranean.