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Parts of an insect

Common Insect Orders Adapted from Berkeley Natural History Museums lesson “A Quick Way to Identify Common Insect Orders”. Parts of an insect. Parts of an insect. Abdomen. Head. Thorax. Parts of an insect. Abdomen. Head. Thorax. 3 pairs of legs. Parts of an insect. Abdomen. Head.

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Parts of an insect

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  1. Common Insect OrdersAdapted from Berkeley Natural History Museums lesson “A Quick Way to Identify Common Insect Orders”

  2. Parts of an insect

  3. Parts of an insect Abdomen Head Thorax

  4. Parts of an insect Abdomen Head Thorax 3 pairs of legs

  5. Parts of an insect Abdomen Head Thorax Wings and legs on thorax 3 pairs of legs

  6. Important areas to study to identify common insect orders Abdomen Head Thorax 3 pairs of legs

  7. mandibles Mouthparts: Chewing mandibles

  8. Mouthparts: Sucking Coiled Piercing Sponging-sucking

  9. Orthoptera (grasshoppers, crickets, katydids)Greek "ortho" = straight, "ptera" = wing Spot ID • Jumping legs • parallel-sided structure of front wings

  10. Orthoptera (grasshoppers, crickets, katydids)Greek “orthos” = straight, “pteros” = wing

  11. Orthoptera (grasshoppers, crickets, katydids)

  12. Orthoptera (grasshoppers, crickets, katydids) Spot ID • Jumping hind legs

  13. Orthoptera (grasshoppers, crickets, katydids) Spot ID • Jumping hind legs • Some with ovipositor at hind end

  14. Coleoptera(beetles)Greek “koleos”= sheath, “ptero”= wing

  15. Coleoptera(beetles)

  16. Coleoptera(beetles) Spot ID • Chewing mouthparts

  17. Coleoptera(beetles) Spot ID • Chewing mouthparts • Forewings (elytra) form hard shell covering hindwings

  18. Lepidoptera(butterflies, moths)Greek “lepido”= scale, “ptero”= wing

  19. Lepidoptera(butterflies, moths)Greek “lepido”= scale, “ptero”= wing • Coiling-sucking mouthparts

  20. Lepidoptera(butterflies, moths)Greek “lepido”= scale, “ptero”= wing • Coiling-sucking mouthparts • Four wings covered with scales

  21. Diptera(flies)Latin “di”= two, “ptero”= wing

  22. Diptera(flies)Latin “di”= two, “ptero”= wing Spot ID • Two wings

  23. Diptera(flies)Latin “di”= two, “ptero”= wing Spot ID • Two wings • Hind wings reduced to halteres

  24. Diptera(flies)Latin “di”= two, “ptero”= wing Spot ID • Two wings • Hind wings reduced to halteres • Sponging-sucking mouthparts • Except mosquitoes and some others that pierce skin

  25. Diptera(flies)Latin “di”= two, “ptero”= wing

  26. Hymenoptera(bees, wasps, ants)Greek “hymen”=membrane, “ptero”=wingor Hymen, the Greek god of marriage because the forewing & hindwings are joined together with small hooks Hooks not shown

  27. Hymenoptera(bees, wasps, ants)

  28. Hymenoptera(bees, wasps, ants) Spot ID • Chewing mouthparts

  29. Hymenoptera(bees, wasps, ants) Spot ID • Chewing mouthparts • Four membranous wings

  30. Hymenoptera(bees, wasps, ants) Spot ID • Chewing mouthparts • Four membranous wings • Waist often constricted

  31. Hymenoptera(bees, wasps, ants) Spot ID • Chewing mouthparts • Four membranous wings • Waist often constricted • Females with ovipositor or stinger at end of abdomen

  32. Hemiptera(true bugs, also sometimes called Heteroptera)Greek “hemisys” = half, “ptero” = wing

  33. Hemiptera(true bugs)Greek “hemisys” = half, “ptero” = wing Spot ID • A beak: piercing-sucking mouthparts

  34. Hemiptera(true bugs)Greek “hemisys” = half, “ptero” = wing Spot ID • A beak: piercing-sucking mouthparts • Forewings covering hindwings • Wing half membrane, half thickened

  35. Homoptera(hoppers, aphids, scales, cicadas)Greek “homo” = uniform, “ptero” = wing Spot ID • A beak: piercing-sucking mouthparts • Forewings covering hindwings • Wings all membranous

  36. Homoptera(hoppers, aphids, scales, cicadas)Greek “homo” = uniform, “ptero” = wing Some entomologists now combine Order Homoptera with Order Hemiptera because the DNA has been found to be similar. In this case, Homoptera would be considered a suborder.

  37. Neuroptera(ant lions, lacewings, mantidflies)Greek "neuron" = nerve and "ptera" = wings Spot ID • four membranous net-veined wings • forewings and hindwings about the same size

  38. Neuroptera(ant lions, lacewings, mantidflies)Greek "neuron" = nerve and "ptera" = wings Spot ID • Larvae have elongated mandibles adapted for piercing and sucking • Oliver the Owlfly larva is an example • Antlion larvae (doodlebugs)

  39. Thysanoptera (thrips)Greek "thysano-" = fringed, “ptera" = wing • Very small insects with a range of 1/32 to 1/8 inch in length • Feed on plants, considered crop pest

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