How do insects protect themselves?

Insects can protect themselves in many ways. Here are some examples.
They can fly away: flies, ladybugs
They can hop away: crickets, grasshoppers
They can use camouflage to blend in with their surrounding: moths, grasshoppers
They can use their small size : they hide in small places their enemies can't go: ants
They can adapt: They can live in cold places or extremely hot places where they have few natural enemies; The midgefly and woolly caterpillar can survive in Antarctica.
They can bite and sting: earwigs, wasps and bees.
They can eat certain plants: The monarch butterfly eats milkweed as a caterpillar so the adult butterfly will taste bad to birds.
They have a hard exoskeleton to protect myself from being eaten: ladybugs, junebugs, beetles.
They curl up in a ball and play dead: ladybugs and sawbugs(potato beetle)
They protect each other: Ants give out a warning sent to other ants when in danger.
They live in groups: Ants and bees have guards at the door of the nest to keep enemies out.
They can even spray noxious fluid (Bombardier beetle) or lash out with sharp spikes (New Guinea Walking Stick).
they have warning colors-bees and wasps where yellow and black to warn off predators