Classification of Arthropods/Insects       Dr. Adams     Entomology – Biology 1224
    Phylum Arthropoda – Arthropods
        Subphylum Trilobita – Trilobites (extinct)
        Subphylum Chelicerata – Chelicerates
            Class Merostomata – Horseshoe Crabs
            Class Arachnida – Spiders, Scorpions, Ticks, Chiggers, Mites
            Class Pycnogonida – Sea Spiders
        Subphylum Crustacea – Crustaceans (Crabs, Shrimp, Barnacles, Isopods [pillbugs], etc.)
            Many different Classes
        Subphylum Labiatae (Atelocerata)
            Superclass Myriapoda 
                Class Diplopoda – Millepedes
                Class Chilopoda – Centipedes
                Class Pauropoda – Pauropods
                Class Symphyla – symphylans
            Superclass Hexapoda – Hexapods
                Class Parainsecta                                             Other studies indicate a close
                                Order Protura – Proturans                    relationship between Protura
                                Order Collembola – Springtails           & Diplura (collectively called
                Class Entognatha                                                 the Nonoculata), with Collembola
                                Order Diplura – Diplurans                    being the odd hexapodous order
                Class Insecta                                                       (I agree with this arrangement) 
                    Subclass Apterygota – NO wings
                                Order Archaeognatha – Jumping Bristletails (machilids)
                                Order Thysanura – Silverfish
                    Subclass Pterygota – wings
                        Infraclass Paleoptera
                                Order Odonata – Dragonflies and Damselflies
                                Order Ephemeroptera – Mayflies
                        Infraclass Neoptera
                            Division – Exopterygota
                                Orthopteroid Orders –
                                        Blattodea – Roaches
                                        Mantodea – Mantids
                                        Isoptera – Termites
                                        Grylloblattodea – Rock hoppers
                                        Dermaptera – Earwigs
                                        Plecoptera – Stoneflies
                                        Embiidina – Webspinners
                                        Orthoptera – Grasshoppers, Crickets, Katydids
                                        Phasmatodea – Stick insects
                                Hemipteroid Orders
                                        Zoraptera – Zorapterans
                                        Psocoptera – Book Lice
                                        Phthiraptera – Lice
                                        Hemiptera:
                                            Suborder Heteroptera – True Bugs (Stink bugs, etc.)
                                            Suborder Homoptera – Cicadas, Leaf Hoppers, etc.
                                        Thysanoptera – Thrips
                            Division Endopterygota
                                Neuropteroid Orders                                       
                                        Megaloptera – Dobsonflies, Alderflies, Fishflies
                                        Raphidioptera – Snakeflies
                                        Neuroptera – Lacewings, Antlions, etc.
                                        Coleoptera – Beetles
                                        Strepsiptera
                                Mecopteroid Orders
                                        Mecoptera – Scorpionflies
                                        Diptera – Flies
                                        Siphonaptera – Fleas
                                        Lepidoptera – Butterflies and Moths
                                        Trichoptera – Caddisflies
                                Hymenopteroid Orders
                                        Hymenoptera – Ants, Wasps, and Bees

The orders in bold print are the required orders (or in some cases sets of orders) for your collection.
The orders/classes/subphyla in bold listed prior to the hexapods are those that you are going to
    encounter in the terrestrial environment as you search for your insects.