Trachiata
Arthropods with three (insects) or two (Myryipods) tagmata, all appendages multiarticulated and uniramous, mandibles that are whole limb jaws with a biting surface at the tip, with ectodermally derived excretory system of malphigian tubules, with out a carapace , with aerial gas exchange system of trachae.
Class Myriopoda*
Subclass Diplopoda
Subclass Pauropoda ‑ pauropodans
Subclass Chilopoda* ‑ centipedes with numerous unfused trunk segments all but the last two with one pair of legs, first pair of legs modified into a poison fang, both pairs of maxillae coalessed
Subclass Symphyla ‑ symphylans
Class Insecta* ‑ Uniramians with postcephalic segments differentiated in to a thorax (3 segments) and abdomen 11 or fewer segments),
Subclass Myrentomata*
Order Protura ‑ proturans
Subclass Oligoentomata
Order Collembola* ‑ springtails
Subclass Diplurata ‑ diplurans
Subclass Zygoentomata*
Order Thysanura* ‑ silver fish, bristletails
Order Archaeognatha ‑ Rock hoppers
Subclass Pterygota ‑ all winged as adults
Order Ephemoroptera* ‑ mayflies ‑ aquatic nymphs ‑ predatory only as nymph
Order Odonata* ‑ dragon flies and damsel flies
Superorder Orthopterodea*
Order Blattodea* ‑ cockroaches ‑ mandibulate chewers
Order Mantodea* ‑ mantids ‑ mandibulate chewers
Order Isoptera* ‑ termites ‑ mandibulate and chewing Order Plecoptera* ‑ stone flies
Order Orthoptera* ‑ grasshoppers, crickets Romalea, mandibulate chewers
Order Dermaptera* ‑ earwigs ‑ well developed cerci mandibulate chewers
Order Embioptera ‑ embiopterans
Order Phasmida ‑ stick and leaf insects
Superorder Hemipterodea*
Order Zoraptera ‑ zorapterans
Order Psocoptera ‑ book and bark lice
Order Phthiraptera ‑ phthirapterans
Order Hemiptera* ‑ true bugs, mouthparts modified for piercing and sucking
Order Thysanoptera ‑ Thrips ‑ mouthparts modified piercing and sucking
Order Anoplura* ‑ body lice, crab lice, mouthparts greatly modified for piercing
Order Mallophaga* ‑ bird lice ‑ mouth parts modified forbiting (chewing lice)
Order Homoptera*7 ‑ plant bugs including white flies, aphids, scale insects, cicadas
Superorder Holometabola ‑ complete metamorphosis wings developed from internal pads
Order Strepsiptera ‑ twisted wing insects
Order Coleoptera* ‑ beetles ‑ covered by hard elytra ‑mandibulate chewing and biting
Order Neuroptera* ‑ alder flies, lacewings, antlions, mandibulate
Order Raphidoptera ‑ raphidopterans
Order Megaloptera – megalopterans
Order Hymenoptera* ‑ bees, wasps, ants, mouthparts mandibulate chewing, maybe modified forsucking, pedicel
Order Mecoptera ‑ scorpion flies ‑ mandibulate beak, carnivorous
Order Siphonaptera* ‑ fleas ‑ mouthparts adapted to piercingand sucking blood
Order Diptera* ‑ true flies, mosquitoes, gnats, suctorial mouthpars, form proboscis
Order Trichoptera ‑ caddis flies ‑ mouthparts of adults modified for lapping liquids
Order Lepidoptera* ‑ butterflies ‑ adult mouthparts modified sucking tube,