- the larva of the Chinese silkworm moth, Bombyx mori, which spins a cocoon of commercially valuable silk.
- the larva of any of several moths of the family Saturniidae, which spins a silken cocoon.
- the larva of the Chinese moth Bombyx mori, that feeds on the leaves of the mulberry tree: widely cultivated as a source of silk
- any of various similar or related larvae
- the moth of any of these larvae