We detest finding the larvae feeding on stored cereals and grains, or in wool or carpets! They have been carried to all parts of the world.
Feeds from silk galleries on stored foods, dried skins, dead insects, dried grass, in wool, carpets, birds' nests, etc.
Pupates in feeding place or elsewhere after wandering.
Sometimes found resting indoors by day or flying sluggishly after dark. Attracted to light. September to May.
8.5 - 13mm
Usually inside houses, outhouses, warehouses.