Silk moth

The silk moth is a domesticated moth species best known for its larvae, the silkworm, which produce silk used in sericulture.

The silk moth is a domesticated moth species best known for its larvae, the silkworm, which produce silk used in sericulture. In most modern references, the term refers specifically to *Bombyx mori*, the domestic silk moth of Chinese origin. It has been bred by humans for thousands of years and is no longer found as a self-sustaining wild species in the same way as its domesticated form.

Taxonomy and naming

The silk moth most commonly refers to *Bombyx mori*, a moth in the family Bombycidae. The term “silkworm” refers to its larval stage, not a worm.

Domestication and distribution

The species originated in China and was domesticated thousands of years ago for silk production. It is now bred in many regions, with major production historically and presently concentrated in Asia.

Life cycle

The moth develops through egg, larva, pupa, and adult stages. The larva spins a silk cocoon, pupates inside it, and the adult moth emerges briefly to reproduce. Adult silk moths are short-lived and have reduced or nonfunctional mouthparts, so they do not eat.

Biology and behaviour

Adult silk moths are small, pale, and generally unable to fly well or feed. Larvae are specialized feeders on mulberry leaves, especially white mulberry.

Economic importance

Silk moths are central to sericulture, the production of silk from cocoons. Their importance extends to textile history, trade, and biological research.