Phylum Annelida
	Phylum Onychophora
	Phylum Arthropoda
		Subphylum Trilobita
		Subphylum Chelicerata
			Class Merostomata = horseshoe crabs
			Class Arachnida = spiders, scorpions, ticks, mites, etc.
		Subphylum Crustacea = crabs, shrimp, barnacles, etc.
		Subphylum Atelocerata
			Class Diplopoda = millipeds
			Class Chilopoda = centipedes
			Class Hexapoda = insects
				Subclass Entognatha
					Order Protura = proturans
					Order Collembola = springtails
					Order Diplura = diplurans
				Subclass Apterygota
					Order Microcoryphia = bristletails
					Order Thysanura = silverfish, firebrats
				Subclass Pterygota
					Order Ephemeroptera = mayflies
					Order Odonata = dragonflies, damselflies
					Order Grylloblattaria = rock crawlers
					Order Phasmida = walkingsticks, timemas
					Order Orthoptera = grasshoppers, crickets
					Order Mantodea = mantids
					Order Blattaria = cockroaches
					Order Isoptera = termites
					Order Dermaptera = earwigs
					Order Embiidina = webspinners
					Order Plecoptera = stoneflies
					Order Zoraptera = zorapterans
					Order Psocoptera = psocids
					Order Phthiraptera = lice
					Order Hemiptera = true bugs
					Order Homoptera = cicadas, hoppers, etc.
					Order Thysanoptera = thrips
					Order Neuroptera = alderflies, fishflies, lacewings, etc.
					Order Coleoptera = beetles
					Order Strepsiptera = twisted-winged parasites
					Order Mecoptera = scorpionflies
					Order Siphonaptera = fleas
					Order Diptera = flies
					Order Trichoptera = caddisflies
					Order Lepidoptera = butterflies, moths
					Order Hymenoptera = sawflies, ants, bees, wasps, etc.