Pest Control Technician Practice Exam

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Which of the following insects undergo complete metamorphosis?

Termites
Cockroaches
Flies
Crickets

The correct answer is: Flies

The process of complete metamorphosis, also known as holometabolism, involves four distinct life stages: egg, larva, pupa, and adult. Flies exemplify this life cycle as they hatch from eggs into larvae (commonly known as maggots), which then go through a pupal stage before emerging as fully developed adult flies. This transformation involves significant changes in form and function, distinguishing flies as insects that undergo complete metamorphosis. In contrast, termites, cockroaches, and crickets undergo incomplete metamorphosis, or hemimetabolism, which consists of three stages: egg, nymph, and adult. In these insects, the nymphs typically resemble smaller versions of the adult without going through a pupal stage. This fundamental difference in developmental process highlights why flies are the only insects in this list that experience complete metamorphosis.