What different species of cocoons are there?

Cocoons are produced by various species of insects, primarily within the order Lepidoptera (moths and butterflies). Notable examples include the silk cocoon of the Bombyx mori (silkworm), which is cultivated for silk production, and the protective cocoons of certain moth species, such as the Promethea moth. Additionally, some beetles create pupal cases or cocoons, while certain species of wasps and Spiders also produce silk structures for protection. Each species has unique characteristics and functions for its cocoon, adapted to its environment and life cycle.