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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.

Red-legged Grasshopper 1
Melanoplus femurrubrum
Plains Lubber Grasshopper 2
Brachystola magna
Graphocephala hieroglyphica 3
Cuerna alpina 4
Putnam's Cicada 5
Platypedia putnami
Meadow Spittlebug 6
Philaenus spumarius
Potato Psyllid 7
Bactericera cockerelli
Cochineal Bug 8
Dactylopius coccus
Oleander Aphid 9
Aphis nerii
Rose Aphid 10
Macrosiphum rosae
Big-eyed Toad Bug 11
Gelastocoris oculatus
Notonecta 12
Spined Assassin Bug 13
Sinea diadema
Pale Green Assassin Bug 14
Zelus luridus
Wheel Bug 15
Arilus cristatus
Rhynocoris ventralis 16
Bee Assassin 17
Apiomerus spissipes
Masked Hunter 18
Reduvius personatus
Red-spotted Aster Mirid 19
Polymerus basalis
Tarnished Plant Bug 20
Lygus lineolaris
Common Bed Bug 21
Cimex lectularius
Common Water Strider 22
Aquarius remigis
Sphragisticus nebulosus 23
Charcoal Seed Bug 20
Melacoryphus lateralis
Large Milkweed Bug 20
Oncopeltus fasciatus
False Milkweed Bug 24
Lygaeus turcicus
Small Milkweed Bug 25
Lygaeus kalmii
Blue Shieldbug 26
Zicrona caerulea
Two-spotted Stink Bug 27
Perillus bioculatus
Perillus exaptus 28
Holcostethus limbolarius 29
Brown Stink Bug 19
Euschistus servus
Twice-Stabbed Stink Bug 1
Cosmopepla lintneriana
Brown Marmorated Stink Bug 30
Halyomorpha halys
Harlequin Bug 31
Murgantia histrionica
Green Stink Bug 13
Chinavia hilaris
Say's Stink Bug 32
Chlorochroa sayi
Western Leaf-footed Bug 33
Leptoglossus clypealis
Western Conifer Seed Bug 34
Leptoglossus occidentalis
Cactus Coreid 20
Chelinidea vittiger
Squash Bug 35
Anasa tristis
Harmostes reflexulus 36
Hyaline Grass Bug 37
Liorhyssus hyalinus
Red-shouldered Bug 38
Jadera haematoloma
Western Boxelder Bug 39
Boisea rubrolineata
Eastern Boxelder Bug 40
Boisea trivittata
Lupine Bug 41
Megalotomus quinquespinosus
Eight-spotted Skimmer 42
Libellula forensis
Widow Skimmer 43
Libellula luctuosa
Twelve-spotted Skimmer 44
Libellula pulchella
Four-spotted Skimmer 45
Libellula quadrimaculata
Flame Skimmer 46
Libellula saturata
Calico Pennant 47
Celithemis elisa
Halloween Pennant 48
Celithemis eponina
Variegated Meadowhawk 49
Sympetrum corruptum
Black Meadowhawk 50
Sympetrum danae
Cherry-faced Meadowhawk 51
Sympetrum internum
White-faced Meadowhawk 50
Sympetrum obtrusum
Western Meadowhawk 52
Sympetrum occidentale
Striped Meadowhawk 53
Sympetrum pallipes
Band-winged Meadowhawk 51
Sympetrum semicinctum
Autumn Meadowhawk 50
Sympetrum vicinum
Wandering Glider 54
Pantala flavescens
Spot-winged Glider 55
Pantala hymenaea
Black Saddlebags 56
Tramea lacerata
Red Saddlebags 57
Tramea onusta
Western Pondhawk 56
Erythemis collocata
Eastern Pondhawk 58
Erythemis simplicicollis
Dot-tailed Whiteface 59
Leucorrhinia intacta
Belted Whiteface 51
Leucorrhinia proxima
Blue Dasher 60
Pachydiplax longipennis
Eastern Amberwing 57
Perithemis tenera
Roseate Skimmer 61
Orthemis ferruginea
Common Whitetail 62
Plathemis lydia
Desert Whitetail 56
Plathemis subornata
Plains Emerald 56
Somatochlora ensigera
Pale Snaketail 51
Ophiogomphus severus
Common Green Darner 50
Anax junius
Lance-tipped Darner 63
Aeshna constricta
Variable Darner 50
Aeshna interrupta
Paddle-tailed Darner 50
Aeshna palmata
Shadow Darner 22
Aeshna umbrosa
Blue-eyed Darner 56
Rhionaeschna multicolor
American Rubyspot 56
Hetaerina americana
Ebony Jewelwing 64
Calopteryx maculata
Great Spreadwing 50
Archilestes grandis
Spotted Spreadwing 51
Lestes congener
Slender Spreadwing 47
Lestes rectangularis
Vivid Dancer 65
Argia vivida
Double-striped Bluet 5
Enallagma basidens
Boreal Bluet 50
Enallagma boreale
Tule Bluet 22
Enallagma carunculatum
Familiar Bluet 66
Enallagma civile
Alkali Bluet 56
Enallagma clausum
Southern Damselfly 67
Coenagrion mercuriale
Plains Forktail 38
Ischnura damula
Eastern Forktail 22
Ischnura verticalis
Western Red Damsel 51
Amphiagrion abbreviatum
Common Earwig 1
Forficula auricularia
Willow Pinecone Gall Midge 68
Rabdophaga strobiloides

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

Photo Credits

  • 1. (c) Gilles Gonthier, some rights reserved (CC BY)
  • 2. (c) Juan Cruzado Cortés, some rights reserved (CC BY-SA), uploaded by Juan Cruzado Cortés
  • 3. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
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  • 24. (c) John Brandauer, some rights reserved (CC BY-NC-ND)
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  • 32. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
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  • 35. (c) Lee Elliott, some rights reserved (CC BY-NC-SA), uploaded by Lee Elliott
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  • 39. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC-SA)
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  • 54. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
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  • 59. (c) Jeff Skrentny, some rights reserved (CC BY-NC), uploaded by Jeff Skrentny
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  • 67. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
  • 68. (c) Kent McFarland, some rights reserved (CC BY-NC)

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