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BEETLES

BEETLES. The most diverse group of organisms on Earth – over 300,000 species. # of described species of organisms on Earth. Total 1,392,485. # of insect species in N. America: ca. 90,000 # of beetle species: ca. 30,000 # of families: 111. Beetle structure. mandibles. antennae.

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BEETLES

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  1. BEETLES The most diverse group of organisms on Earth – over 300,000 species

  2. # of described species of organisms on Earth Total 1,392,485

  3. # of insect species in N. America: ca. 90,000 # of beetle species: ca. 30,000 # of families: 111

  4. Beetle structure mandibles antennae elytra (hard fore wings) membraneous hind wings abdomen

  5. Rove beetles – Staphylinidae The largest family of beetles in N. America 3,100 species

  6. Weevils – Curculionidae The largest family of beetles (and probably animals) in the world Second largest in North America 2,500 species Curculio elephas European Chestnut Weevil

  7. Weevils can be pests (alfalfa weevil) or beneficial (attacking invasive weeds) Hypera postica – Alfalfa weevil

  8. Ground beetles - Carabidae Third largest family in N. America – 1,700 species Calosoma scrutator Caterpillar hunter

  9. Ground beetles - Carabidae Chlaenius sp. Vivid metallic ground beetle

  10. Ground beetles - Carabidae Pasimachus elongatus Bluemargined ground beetle

  11. Tiger beetles - Cicindelidae Cicindela formosa Big sand tiger beetle

  12. Tiger beetles - Cicindelidae Cicindela willistoni Tiger beetles and Ground beetles are active predators

  13. Tiger beetles - Cicindelidae Cicindela sexguttata Six-spotted Green Tiger beetle

  14. Leaf beetles - Chrysomelidae Fourth largest family in N. America – 1,500 species

  15. Leaf beetles - Chrysomelidae Many pests belong to this family Colorado potato beetle

  16. Leaf beetles - Chrysomelidae Spotted cucumber beetle Northern corn root worm Potato flea beetle Western corn root worm

  17. Scarab beetles - Scarabaeidae Fifth largest family in N. America – 1,400 species Phanaeus sp.

  18. Scarab beetles - Scarabaeidae Canthon sp. Dung beetles

  19. Scarab beetles - Scarabaeidae Japanese Beetle (Popillia punctata)

  20. Scarab beetles - Scarabaeidae Larvae – “grubs” Cotinis nitida Green June beetle

  21. Scarab beetles - Scarabaeidae Rhinoceros beetle

  22. Goliath beetle – the largest beetle in the world 0 8 in

  23. Stag beetles – Lucanidae Larvae develop for up to 5 years in decaying wood

  24. Darkling beetles – Tenebrionidae Sixth largest family of beetles in North America 1,300 species

  25. Longhorned beetles - Cerambycidae 1,100 species in N. America Plectrodera scalator Cottonwood borer

  26. Longhorned beetles - Cerambycidae Dryobius sexnotatus Six-banded longhorned beetle

  27. Longhorned beetles - Cerambycidae Dorcaschema alternatum Small mulberry borer

  28. Longhorned beetles (Cerambycidae) Desmocerus palliatus Saperda tridentata Elm borer Elder borer Larvae live in wood

  29. Click beetles - Elateridae 800 species in N. America Adult Larva – “Wireworm”

  30. Metallic wood-boring beetles - Buprestidae 700 species in N. America

  31. Metallic wood-boring beetles - Buprestidae

  32. Metallic wood-boring beetles - Buprestidae

  33. Bark beetles - Scolytidae About 500 species in N. America Dendroctonus ponderosae Mountain pine beetle

  34. Bark beetles - Scolytidae Mountain pine beetle damage

  35. Bark beetle damage

  36. Soldier beetles - Cantharidae About 500 species in N. America

  37. Lady beetles - Coccinellidae 400 species in N. America Coleomegilla maculata Pinkspotted lady beetle

  38. Lady beetles - Coccinellidae Pinkspotted lady beetle – efficient biocontrol agent

  39. Lady beetles - Coccinellidae Lady beetle larva is a ferocious predator

  40. Blister beetles - Meloidae 330 species in N. America

  41. Blister beetles - Meloidae • PESTS or ALLIES? • Toxic to horses – may poison hay • Natural enemies of grasshoppers

  42. Carrion beetles - Silphidae 50 species in N. America Nicrophorus spp. Burying beetles

  43. Carrion beetles - Silphidae Silpha americana American carrion beetle – endangered species

  44. BEETLES !!!

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