Cocoon

A cocoon is a protective covering spun by certain insects, such as moths and butterflies, during their pupal stage.

West Bengal Silkworm Seed, Cocoon and Silk Yarn Rules, 1991

West Bengal Silkworm Seed, Cocoon and Silk Yarn (Regulation of Production, Supply, Distribution and Sale) Rules, 1991.

An Act to provide for the regulation of production, supply, distribution and sale of silkworm seed, cocoon and silk yarn in West Bengal.