What is a caterpillar and a chrysalis?
In butterflies the larva is commonly referred to as a caterpillar, while the pupa is a chrysalis. Most caterpillars have enormous appetites and eat large amounts of leaves as they grow. Caterpillars molt skin several times (called an instar) as it grows. When the caterpillar is done growing, the last molting reveals a chrysalis. The development of the adult butterfly takes place inside of the chrysalis.