To pupate means to transform from a larva into a pupa, which is a crucial stage in an insect's development. When a caterpillar pupates, it forms a chrysalis around itself and begins the remarkable process of reorganizing its entire body to become a butterfly or moth.

Inside the protective casing, the insect undergoes dramatic transformation. Its body essentially dissolves into a cellular soup and rebuilds itself with completely different features: wings, new legs, antennae, and compound eyes. A beetle larva pupates underground or in rotting wood, while a mosquito larva pupates in water.

The process can take anywhere from a few days to several months, depending on the species and temperature. Scientists who study insects use the word pupation to describe this transformative stage. Some pupae look like small mummies wrapped in silk, while others appear as hard, brown capsules.

When an insect pupates successfully, it emerges as an adult ready to reproduce and complete its life cycle.