Case bearing clothes-moths
Tinea pellionella, the case-bearing clothes moth, is a species of tineoid moth in the family Tineidae, the fungus moths. This species has a cosmopolitan distribution, occurring nearly worldwide. The larva eats mainly fibrous keratin, such as hairs and feathers. It can become a pest when it feeds on carpets, furs, upholstery, and woolen fabrics. It also consumes detritus, cobwebs, bird nests (particularly of the domestic pigeon), stored vegetable produce and wallpaper. It stays inside a snug case it constructs from debris such as fibers and hairs.