Hexapoda insects and some closely related more ancient groups, all with six walking legs --[ToL] Entognatha Collembola springtails, very abundant & widely distributed (Isotoma, Onychiurus) --[ToL links] Protura very small & eyeless with enlarged forelegs (Eosentomon) --[ ToL links] Diplura two pronged bristletails (position unclear but traditionally included in Entognatha along with Collembola and Protura) (Campodea) --[ToL links] Insecta insects --[researchers resource guide ToL ummzADW links] Anoplura sucking lice, true lice (Pediculus, Solenopotes) --[ToL links] Coleoptera beetles (includes Buprestoidea Caraboidea Lampyris noctiluca -- glow worm Leptinotarsa decemlineata -- Colorado Beetle Strepsiptera)-- [ToL ummzADW links] Dermaptera earwigs (Forficula, Labidura) --[ToL links] Dictyoptera --[ToL links] Blattodea (=Blattaria) cockroaches (Blaberus, Blattella, Periplaneta americana -- American cockroach) --[ucmp] Mantodea (=Manteodea) mantids (Mantis, Tenodera) --[ummzADW] Diptera true flies (Aedes aegypti -- malaria mosquito Chironomidae Drosophila -- fruit flies Tachinidae) --[researchers ToL ummzADW links] Ephemeroptera mayflies, shadflies (Baetis, Ephemera, Hexagenia, Rhithrogena) --[dedicated site ToL links] Hemiptera --[ToL links] Heteroptera true bugs --[ummzADW] Homoptera Aphidoidea aphids, plant lice Cicadoidea cicadas Coccoidea mealy bugs, scale insects --[dedicated site] Psylloidea jumping plant lice Hymenoptera includes social wasps and ants --[database ucmp ummzADW links] Symphyta sawflies Apocrita Evanioidea Ichneumonoidea Pelecinoidea (Pelecinus) Chalcidoidea chalcid wasps Proctotrupoidea Formicoidea ants Vespoidea true wasps Sphecoidea Apoidea bees (Apis mellifera -- honeybee) Isoptera termites, white ants (Coptotermes, Nasutitermes, Reticulitermes) --[links] Lepidoptera butterflies & moths --[resource guide ummzADW links] Bombycoidea (Bombyx mori -- silk moth) Cossoidea Gelechioidea Geometroidea Noctuoidea noctuid moths (Lymantria dispar -- gypsy moth) Papilionoidea butterflies (Vanessa) Pyraloidea Sphingoidea Tineoidea Tortricoidea Yponomeutoidea Zygaenoidea Mallophaga bird lice, biting lice (Menopon) Mecoptera scorpionflies (Boreus, Panorpa) --[links] Megaloptera alder flies, dobson flies, fish flies (Chauliodes, Sialis) --[ToL links] Neuroptera (=Planipennia) dobsonflies, doodlebugs, lacewings (Ankylopteryx, Chrysopa, Chrysoperla, Myrmeleontidae -- antlions) --[dedicated site researchers links] Odonata damselflies, dragonflies (Aeschna, Argia, Calopteryx, Ischnura, Libellula, Orthetrum, Sympetrum) --[dedicated site researchers ToL ummzADW links] Orthoptera --[links] Phasmida (=Phasmatodea) leaf insects, stick insects (Carausius, Cuniculina) Saltatoria crickets, grasshoppers, groundhoppers, katydids, locusts (Acheta, Acrida, Chorthippus, Gryllus, Locusta migratoria -- migratory locust, Melanoplus, Oxya, Schistocerca gragaria -- desert locust, Tettigonia) Plecoptera (=Perlaria) stone flies (Isoperla, Leuctra, Nemoura) --[links] Psocoptera bark lice, book lice (Caecilius, Loensia, Psocus) Siphonaptera fleas (Ceratophyllus, Ctenocephalides, Xenopsylla) --[links] Strepsiptera twisted wing insects Thysanoptera thrips (Aelothrips, Frankliniella, Haplothrips, Thrips) --[links] Thysanura bristletails, silverfish (Lepisma) --[ ToL links] Trichoptera caddis flies (Hydropsyche, Hydroptila, Limnephilus, Rhyacophila) --[links]