Common clothes moths go through complete metamorphosis: egg, larvae (crawling stage), pupae (cocoon) and adult (moth). The female moth lays approximately 50 eggs to a suitable material the larvae can feed upon, she will then die. Eggs will hatch within 10 days in warm weather and reach adulthood in just over a month. The larvae have dark heads and white bodies. They commonly spin themselves a silken case and attach frass (excrement, material fibres, dust, etc.) and will then lie inside feeding upon the protein (keratin) found.