2. COMMON CLASSES AND ORDERS OF ARTHROPODA V: CLASS INSECTA This is by far the largest class of arthropods – estimated 750,000-1 million+ species worldwide Ranging from wingless silverfish to the ants, bees and wasps Found in nearly every terrestrial habitat; also, some in/on fresh water Metamorphosis varies from ‘none’ to ‘simple’ to ‘complete’ Adults commonly winged; still, some cannot fly (wings too small or secondarily absent) or do not fly

3. There are 19 Orders of insects in Your List *The Arthropod ID Quiz will ONLY feature ADULT arthropods. Class Insecta, (As Adults*, That Is) Photo: D.B. Richman, NMSU

4. Class Insecta Pay attention to the insect’s ‘antennal type’ which can be useful for identification; they can vary by Order & sometimes within an Order CAPITATE Diagram: bugguide.net

5. Class Insecta Order Thysanura – Silverfish Metamorphosis: None Mouthparts: Chewing Photo: Univ. Minnesota Extension

6. Class Insecta Order Odonata – Dragonfly Metamorphosis: Simple Mouthparts: Chewing All Photos: D.B. Richman, NMSU

7. Class Insecta Order Odonata – Damselfly Metamorphosis: Simple Mouthparts: Chewing All Photos: D.B. Richman, NMSU

8. Class Insecta Order Phasmatodea – Walkingstick Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

9. Class Insecta Order Orthoptera – Short-horned Grasshopper Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

10. Class Insecta Order Orthoptera –Long-horned Grasshopper Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

11. Class Insecta Order Orthoptera –Cricket Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

12. Class Insecta Order Orthoptera - Camel Cricket Metamorphosis: Simple Mouthparts: Chewing Photo: David Cappaert, MI State Univ, bugwood.org Uga5369804 Photo: W Cranshaw, CO State Univ, bugwood.org

13. Class Insecta Order Orthoptera – Jerusalem Cricket Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

14. Class Insecta Order Dermaptera – Earwig Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

15. Class Insecta Order Mantodea – Mantid Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

16. Class Insecta Order Phthiraptera – Sucking Louse (Lice, plural) Metamorphosis: Simple Mouthparts: Sucking Cattle tail louse. Human head louse Both photos: MC Pereira, ICB, Univ Sao Paulo, Brazil

17. Class Insecta Order Phthiraptera, Chewing Louse (Lice, pl.) Metamorphosis: Simple Mouthparts: Chewing Chicken feather louse Deer louse Chicken body louse Tamu.edu KS Dept Ag PDIS Org image lib MC Pierera icb usp brazil

18. Class Insecta Order Isoptera – Termite Metamorphosis: Simple Mouthparts: Chewing A)Wingless reproductive (adult) B)Winged reproductives (adults) C)Worker termites are actually nymphs Photo: PJBryant, UCIrvine Entomology Photo: Univ Kentucky Entomology Photo: D.B. Richman, NMSU A) B) C)

19. Class Insecta Order Blattodea – American Cockroach Metamorphosis: Simple Mouthparts: Chewing Photo: D.B. Richman, NMSU

20. Class Insecta Order Blattodea - German Cockro ach Metamorphosis: Simple Mouthparts: Chewing Photo: Univ. Nebraska-Lincoln, Dept. Entomology

21. Class Insecta Order Blattodea - Oriental Cockroach Metamorphosis: Simple Mouthparts: Chewing Photo: Univ. Nebraska-Lincoln, Dept. Entomology

22. Class Insecta Order Thysanoptera – Thrips (both sing. & pl.) Metamorphosis: Simple Mouthparts: Sucking & Chewing Onion thrips (L), Western flower thrips (R) Photo: Alton N. Sparks, Jr., University of Georgia, Bugwood.org Palm thrips, Thrips palmi. Photo: Plant Protection Service Archive, Plant Protection Service, Bugwood.org

23. Next…… The ‘True Bugs’---Hemiptera Photo: D. B. Richman, NMSU