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Major Orders of Insects

Major Orders of Insects. Coleoptera. “Sheath – winged” 2 pairs of wings (front pair covers transparent back pair) Heavy armored exoskeleton Biting and chewing mouth parts. Diptera : “Two-winged”. Diptera : “Two-winged”. Flies & mosquitoes

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Major Orders of Insects

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  1. Major Orders of Insects

  2. Coleoptera • “Sheath – winged” • 2 pairs of wings (front pair covers transparent back pair) • Heavy armored exoskeleton • Biting and chewing mouth parts

  3. Diptera: “Two-winged”

  4. Diptera: “Two-winged” • Flies & mosquitoes • Transparent front wings, hind wings reduced and help with balance • Heavy armored exoskeleton • Sucking, piercing, and lapping mouth parts

  5. Hymenoptera “Membrane winged”

  6. Hymenoptera – “Membrane winged” • Ants, bees, wasps • 2 pairs of transparent wings • Mobile head and well developed eyes • Chewing and sucking mouth parts

  7. Lepidoptera“Scale winged”

  8. Lepidoptera“Scale winged” • Butterflies & moths • 2 pairs of broad, scaly wings • Hairy bodies • Tubelike, sucking mouthparts

  9. Hemiptera “Half-winged”

  10. Hemiptera“Half-winged” • Giant water bugs, bed bugs • 2 pairs of wings or wingless • Piercing, sucking mouthparts • Scutellum • True bugs

  11. Orthoptera“Straight Winged”

  12. Orthoptera“Straight Winged” • Grasshoppers, crickets • 2 pairs of wings or wingless • Biting and chewing mouthparts in adults

  13. Odonata“Toothed”

  14. Odonata“Toothed” • Dragonflies & Damselfies • 2 pairs of transparent wings • Chewing mouthparts

  15. Isoptera“Equal winged”

  16. Isoptera“Equal winged” • Termites • 2 pairs of wings; some stages are wingless • Chewing mouthparts • Social insects w/division of labor

  17. Siphonaptera“Tube-wingless” • Fleas • Small & wingless • Flattened body • Piercing and sucking mouthparts • Jumping legs

  18. Ephemeroptera • Mayflies • Primitive insects; less numerous today due to outcompeting • Nymphs are aquatic and adults are aerial • Serve as water quality indicators

  19. Homopetera “Same winged” • Cicadas, aphids, scales, plant-leaf & treehoppers (or hoppers), spittlebugs • Plant eaters with piercing and sucking mouthparts Have 2 pairs of membraneous uniform wings or may lack wings entirely

  20. Dermaptera “skin winged” • Earwigs • Chewing mouthparts • Minor pest in homes and flowers • Narrow toughened body • Cerci in back hardened like forceps

  21. Thysanura “thysanos=fringe ura=tail “ • Bristletails and silverfish • Chewing mouthparts; no wings • Commonly found • in dorms, apartments and • basements of buildings, • especially near heating • systems (firebrats) or • areas of higher humidity • like bathrooms (silverfish). • Others outdoors

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