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Denver-Boulder Metro Area: Bugs

This guide contains spiders, bees, wasps, ants, beetles, dragonflies, grasshoppers, flies and other bugs that can be found in the Denver-Boulder Metro Area, including Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties.

Margined Calligrapher 1
Toxomerus marginatus
Orange-spined Drone Fly 2
Eristalis nemorum
Common Drone Fly 3
Eristalis tenax
Striped Bromeliad Fly 4
Copestylum vittatum
Thick-legged Hoverfly 5
Syritta pipiens
Spiny Tachinid Fly 6
Paradejeania rutilioides
Adejeania vexatrix 7
Swift Feather-legged Fly 8
Trichopoda pennipes
Common Greenbottle Fly 9
Lucilia sericata
secondary screwworm 10
Cochliomyia macellaria
Yellow Dung Fly 5
Scathophaga stercoraria
House Fly 5
Musca domestica
Stilt-legged Fly 11
Rainieria antennaepes
Micropeza lineata 12
Peacock Fly 11
Callopistromyia annulipes
Picture-winged Fly 13
Delphinia picta
Sunflower receptacle maggot 14
Gymnocarena diffusa
Thistle Stem Gall Fly 15
Urophora cardui
Sunflower Seed Maggot 16
Neotephritis finalis
Western Horse Fly 9
Tabanus punctifer
Cyrtopogon 17
Lampria bicolor 18
Chrysanthrax cypris 19
Greater Bee Fly 20
Bombylius major
Slate Brown Dun 21
Epeorus longimanus
Iron Blue Dun 22
Baetis bicaudatus
Speckled Wing Dun 23
Callibaetis ferrugineus hageni
Giant mayfly 24
Hexagenia limbata
Trico Spinner 25
Tricorythodes explicatus
Pale Morning Dun
Ephemerella excrucians
Western Green Drake 26
Drunella grandis
Chinese Mantis 27
Tenodera sinensis
European Mantis 28
Mantis religiosa
Common Green Lacewings 29
Chrysoperla

Edited by Colorado Parks and Wildlife, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Denis Doucet, some rights reserved (CC BY-NC), uploaded by Denis Doucet
  • 2. (c) else15, some rights reserved (CC BY-NC), uploaded by else15
  • 3. (c) Ian Boyd, some rights reserved (CC BY-NC)
  • 4. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
  • 5. (c) Marcello Consolo, some rights reserved (CC BY-NC-SA)
  • 6. (c) dloarie, some rights reserved (CC BY), uploaded by dloarie
  • 7. (c) tomoclark, some rights reserved (CC BY-NC), uploaded by tomoclark
  • 8. (c) Steve Kerr, some rights reserved (CC BY), uploaded by Steve Kerr
  • 9. no rights reserved, uploaded by Jesse Rorabaugh
  • 10. (c) Kathleen Franklin, some rights reserved (CC BY)
  • 11. (c) Katja Schulz, some rights reserved (CC BY)
  • 12. (c) latimeria-co, some rights reserved (CC BY-NC), uploaded by latimeria-co
  • 13. (c) Anita Gould, some rights reserved (CC BY-NC), uploaded by Anita Gould
  • 14. (c) jsatler, some rights reserved (CC BY-NC), uploaded by jsatler
  • 15. (c) Mick Talbot, some rights reserved (CC BY-NC-SA)
  • 16. (c) Ken-ichi Ueda, some rights reserved (CC BY)
  • 17. (c) nhbugz, some rights reserved (CC BY-NC), uploaded by nhbugz
  • 18. (c) Rob Van Epps, some rights reserved (CC BY-NC), uploaded by Rob Van Epps
  • 19. (c) Royal Tyler, some rights reserved (CC BY-NC-SA), uploaded by Royal Tyler
  • 20. (c) Pascal Gaudette, some rights reserved (CC BY-NC-SA)
  • 21. (c) BIO Photography Group. Biodiversity Institute of Ontario., some rights reserved (CC BY-NC-SA)
  • 22. (c) Don Loarie, some rights reserved (CC BY)
  • 23. (c) K Schneider, some rights reserved (CC BY-NC), uploaded by K Schneider
  • 24. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
  • 25. (c) Biodiversity Institute of Ontario. Biodiversity Institute of Ontario., some rights reserved (CC BY-NC-SA)
  • 26. (c) Jeffrey M. Webb, some rights reserved (CC BY-NC-SA)
  • 27. (c) John B., some rights reserved (CC BY)
  • 28. (c) Claudio, some rights reserved (CC BY-NC-ND)
  • 29. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel

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