What do we call the old skin that a caterpillar sheds?
∙ The old skin that a caterpillar sheds is called moult. In its lifespan, a caterpillar sheds its skin 4 times.
∙ When the caterpillar moults the last time it hangs itself from the stalk of a leaf by a silk thread. This is the third stage of the life cycle of a butterfly and is known as pupa or chrysalis.