The term 'cocoon contents' refers to the stages of development of a MOTH, which includes the LARVA, PUPA, pupae, and MOTH. The LARVA is the first stage of the MOTH's life cycle, and is a small, worm-like creature. The PUPA is the second stage, in which the LARVA transforms into an adult MOTH. The pupae is the third stage, in which the PUPA develops wings and other features of the adult MOTH. Finally, the MOTH is the fourth and final stage, in which the adult MOTH emerges from the cocoon.