Beetles are generally characterized by a particularly hard exoskeleton and hard forewings (elytra) not usable for flying. ... The beetle's exoskeleton is made up of numerous plates, called sclerites, separated by thin sutures.

What are beetle exoskeleton made of?

The exoskeleton of insects is composed of hard chitin, which is a polymer of acetylglucosamine and quite resistant to many chemicals.

What is a bug exoskeleton?

An exoskeleton is a hard covering that supports and protects the bodies of some types of animals. ... Insects have exoskeletons made of a substance called chitin. The exoskeletons of crabs, lobsters, shrimp, spiders, ticks, mites, scorpions, and related animals are also made of chitin.