Pupa
A pupa (plural: pupae or pupas) is part of becoming an adult for some insects, like some butterflies, moths, beetles, flies, and bees. The pupal stage comes after being a larva; the next stage is adulthood.
The pupa stage of a butterfly, called a chrysalis (plural "chrysalids"), is a well-known example of a pupa because they are often found in the open. The pupa stage of a moth, such as the silkworm, is called a cocoon.
Pupa Media
Pupa of the rose chafer beetle, Cetonia aurata
Adult Hercus fontinalis, a species of parasitoid wasp, emerging from cocoon
Eclosion of an African swallowtail butterfly (Papilio dardanus)
Common crow butterfly (Euploea core) chrysalis illustrating the Ancient Greek origin of the term: χρυσός (chrysós) for gold
The tough brown cocoon of an emperor gum moth
Puparium of Eupeodes americanus
Parasitoid wasp Xenomorphia resurrecta inside a fossilized fly puparium, as revealed by X-ray microtomography