Pupa

Part of speech: noun (n.)

1. Any insect in that stage of its metamorphosis which usually immediately precedes the adult, or imago, stage.

2. A genus of air-breathing land snails having an elongated spiral shell. Coarctate, or Obtected, pupa, a pupa which is incased in the dried-up skin of the larva, as in many Diptera. -- Masked pupa, a pupa whose limbs are bound down and partly concealed by a chitinous covering, as in Lepidoptera.