• Cellular forms
• Domain: Eukaryota
• Kingdom: Animalia
• Subkingdom: Metazoa
• Phyllum: Arthropoda
• Subphyllum: Tracheata
• Class: Insecta

• Order: Plecoptera
• Order: Siphonaptera - Fleas
• Order: Coleoptera
• Order: Trichoptera
• Order: Raphidioptera - Snakeflies
• Order: Mantodea - Mantises
• Order: Dermaptera
• Order: Orthoptera
• Order: Embioptera - Webspinners
• Order: Mecoptera - Scorpionflies
• Order: Thysanoptera
• Order: Ephemeroptera - Mayflies
• Order: Megaloptera
• Order: Diptera
• Order: Odonata - Dragonflies
• Order: Phthiraptera
• Order: Psocoptera
• Order: Lepidoptera
• Order: Neuroptera - Net-winged insects
• Order: Strepsiptera
• Order: Hemiptera - True bugs
• Order: Phasmida
• Order: Blattodea - Cockroaches
• Order: Hymenoptera
• Order: Zoraptera
• Order: Isoptera - Termite