Invertebrates
Clothes Moth
Tineola bisselliella · also called webbing clothes moth
A wool sweater pulled from the back of a closet after months in storage turns out to be full of small holes, and the moth someone spots fluttering weakly nearby is entirely innocent, since the actual damage was finished long ago by a larva that has already grown up and moved on.
Overview
The clothes moth, Tineola bisselliella, is a small moth whose larval stage is found nearly worldwide wherever people store wool, fur, feather, or other natural animal fibre goods. Its larva’s exclusive keratin diet, preference for dark undisturbed places, and complete disconnect from the harmless, non-feeding adult moth make it one of the more misunderstood household pests.
A pest whose adult form is entirely blameless
By the time anyone notices an adult clothes moth fluttering weakly around a closet, the actual feeding damage to stored wool or fur has usually already happened, done entirely by a larva that finished its work and moved on long before the adult ever appeared.
Status
Not Evaluated and not of conservation concern, having spread to become a common household pest across much of the world alongside human storage of natural fibre textiles.
Clothes Moth: common questions
Does the adult clothes moth eat my clothes?
No, adult clothes moths cannot eat at all and never damage fabric themselves; all the actual feeding and resulting fabric damage is caused entirely by the larval stage, which feeds on keratin-based material before eventually pupating and emerging as a non-feeding adult moth whose only remaining task is to reproduce.
Why do clothes moth larvae prefer dark, undisturbed places?
Clothes moth larvae actively avoid light and prefer to feed undisturbed, which is why infestations are so often found in the dark, seldom-moved corners of a closet or storage box rather than in frequently handled clothing, allowing the larvae to feed for extended periods without being noticed or interrupted.
Can a clothes moth damage synthetic fabric?
Not directly, since this species can only digest keratin, a protein found in natural animal fibres such as wool, fur, feathers, and silk, meaning a purely synthetic fabric holds no nutritional value for the larva, though a blended fabric containing even a portion of natural fibre alongside synthetic material can still attract feeding damage.
How can you prevent a clothes moth infestation?
Because clothes moth larvae favour still, undisturbed conditions, regularly cleaning, vacuuming storage areas, and airing out or laundering stored wool and fur garments significantly reduces infestation risk, since these actions disturb the dark, quiet environment the larvae need and can also remove eggs or young larvae before they have a chance to establish.