It belongs to the fungus moth family (Tineidae), and among these to the subfamily Euplocaminae.
[2] The adults are on the wing in the summer months, approximately from May to August depending on location.
They are largish moths (wingspan 25–33 mm) whose black forewings are dappled with (usually) 8 large and a few smaller white dots.
The head is ruddy but the entire animal bleaches easy as museum specimen.
The caterpillars inhabit rotting wood, which they feed on; they also eat bracket fungi growing on it.