Insects can go through amazing changes as they grow up.
The eggs hatch into soft and worm-like larvae. The larvae eat a lot and get much bigger….
and then goes somewhere safe to hide. This is often under the ground, under bark or in some wood. It turns into a still creature with a hard skin called a pupa (more than one are called pupae). During this time it makes lots of changes on the inside. When the changes are all finished, the hard skin splits, and out crawls a soft and fragile adult.
The adult stretches out and its exoskeleton gets hard. The grown-ups usually have wings so they can fly to different places and look for a mate. Then the females can lay eggs and the whole cycle starts again.