The second stage is the caterpillar. A caterpillar is sometimes called larve. A caterpillar is a long creature. It looks like a worm. Most caterpillars have a cool pattern. This pattern has stripes or patches. The caterpillar is hungry once it has hatched. It starts to eat leaves and flowers. It eats these all the time. It first eats the leaf that it was born on. This is the eating and growing stage.A caterpillar grows really fast. This is because they eat a lot. A caterpillar is really small when it is born. It starts to grow fast. This is because it eats all the time. It grows so fast that it becomes too big for its skin. So the caterpillar has to shed its old skin. It then gets new skin. Caterpillars shed their skin four or more times while they are growing. A caterpillar shedding its outgrown skin is called molting.Caterpillars do not stay in this stage very long. While they are in this stage, all they do is eat.