What's Eating Your Collection?

Half grown larva in silk case
Size: 2-10mm (case)

Shape: Flattened silk cylinder, slightly wider at each end, with larva inside. 

Colour: Larva is white with dark brown head. Cases white silk, often with fragments of material being eaten. See related objects.

Antennae: None

Distinguishing features: Larva usually inside case - the larva carries the case with it. 

Larvae are pests of: Wool, skin, fur, feathers and occasionally dirty silk.

Note: Their natural home is birds' nests.