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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.

Bristly Millipede 1
Polyxenus lagurus
House Centipede 2
Scutigera coleoptrata
Common Desert Centipede 3
Scolopendra polymorpha
Pseudogarypus bicornis 4
Common candy-striped spider 5
Enoplognatha ovata
Western Black Widow 6
Latrodectus hesperus
Northern Black Widow 7
Latrodectus variolus
White-spotted False Widow 8
Steatoda albomaculata
Rabbit Hutch Spider 9
Steatoda bipunctata
False Black Widow 10
Steatoda grossa
Triangulate Comb-foot 11
Steatoda triangulosa
Yellow Garden Spider 12
Argiope aurantia
Banded Garden Spider 13
Argiope trifasciata
Furrow Orbweaver 14
Larinioides cornutus
Ornamental Orbweaver 15
Larinioides patagiatus
Northern Orbweaver 16
Aculepeira packardi
Conical Trashline Orbweaver 17
Cyclosa conica
Humped Trashline Orbweaver 18
Cyclosa turbinata
Humpbacked Orbweaver 19
Eustala anastera
Gem-shaped Orbweaver 20
Araneus gemma
Cat-faced Orb-Weaver 21
Araneus gemmoides
Shamrock Orbweaver 22
Araneus trifolium
Six-spotted Orbweaver 23
Araniella displicata
Arabesque Orbweaver 24
Neoscona arabesca
Spotted Orbweaver 18
Neoscona crucifera
Western Spotted Orbweaver 18
Neoscona oaxacensis
Common Stretch Spider 25
Tetragnatha extensa
Silver Longjawed Orbweaver 26
Tetragnatha laboriosa
Longjawed Orbweaver 27
Tetragnatha versicolor
Orchard Orbweaver 28
Leucauge venusta
Bowl-and-doily Spider 29
Frontinella pyramitela
Pityohyphantes cristatus 30
Filmy Dome Spider 5
Neriene radiata
Thick-headed Dwarf Weaver 31
Ceraticelus crassiceps
Barn Funnel Weaver 32
Tegenaria domestica
Pennsylvania Grass Spider 33
Agelenopsis pennsylvanica
Hobo Spider 34
Eratigena agrestis
Carolina Wolf Spider 35
Hogna carolinensis
Hogna coloradensis 36
Rustic Wolf Spider 37
Trochosa ruricola
Drumming Sword Wolf Spider 29
Gladicosa gulosa
Tigrosa grandis 38
Wetland Giant Wolf Spider 15
Tigrosa helluo
Missouri Burrowing Wolf Spider 39
Geolycosa missouriensis
Schizocosa mccooki 40
Pardosa concinna 41
Mackenzie's Thin-legged Wolf Spider 42
Pardosa mackenziana
Pardosa sternalis 43
Pardosa uintana 31
Striped Fishing Spider 44
Dolomedes scriptus
Six-spotted Fishing Spider 45
Dolomedes triton
Striped Lynx Spider 46
Oxyopes salticus
Western Lynx Spider 47
Oxyopes scalaris
Dictyna calcarata 48
Dictyna coloradensis 49
Mallos niveus 50
Greater Ant-mimic Corinne Spider 51
Phrurotimpus borealis
Castianeira alteranda 52
Red-spotted Ant-mimic Sac Spider 53
Castianeira descripta
Long-palped Ant-mimic Sac Spider 54
Castianeira longipalpa
Yellow Sac Spider 1
Cheiracanthium mildei
Drassyllus dromeus 55
Zelotes fratris 56
Zelotes lasalanus 57
Glossy Ant-spider 58
Micaria pulicaria
Neglected Ground Hunter Spider 41
Drassodes neglectus
Common Patterned Ant-mimic Ground Spider 2
Sergiolus montanus
Sergiolus tennesseensis 59
Eastern Parson Spider 60
Herpyllus ecclesiasticus
Western Parson Spider 61
Herpyllus propinquus
Orodrassus coloradensis 62
Multicolored Bark Crab Spider 63
Bassaniana versicolor
Goldenrod Crab Spider 64
Misumena vatia
Tan crab spider 65
Xysticus ferox
Three-banded Crab Spider 66
Xysticus triguttatus
Thanatus altimontis 67
Thanatus coloradensis 68
Oblong Running Spider 69
Tibellus oblongus
Eurasian Running Crab Spider 70
Philodromus dispar
Philodromus histrio 52
Philodromus cespitum 71
Philodromus rodecki 72
Red Running Crab Spider 1
Philodromus rufus
Attractive Running Crab Spider 52
Rhysodromus histrio
California Flattened Jumping Spider 55
Platycryptus californicus
Sassacus papenhoei 73
Buttonhook Leaf-beetle Jumping Spider 74
Sassacus vitis
Bronze Jumping Spider 75
Eris militaris
Coppered White-cheeked Jumping Spider 76
Pelegrina aeneola
Grassland White-cheeked Jumping Spider 52
Pelegrina arizonensis
Pelegrina furcata 77
Peppered Jumper 78
Pelegrina galathea
Metaphidippus siticulosus 79
Phanias monticola 80
Carolina Jumping Spider 48
Phidippus carolinensis
Phidippus asotus 81
Phidippus adumbratus 82
Phidippus insignarius 83
Tyrell's Tufted Jumping Spider 84
Phidippus tyrrelli
Phidippus octopunctatus 85

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

Photo Credits

  • 1. (c) Marcello Consolo, some rights reserved (CC BY-NC-SA)
  • 2. (c) Marshal Hedin, some rights reserved (CC BY-NC-SA), uploaded by Marshal Hedin
  • 3. (c) Ken-ichi Ueda, some rights reserved (CC BY)
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  • 58. (c) Gergin Blagoev, Biodiversity Institute of Ontario, some rights reserved (CC BY-NC-SA)
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  • 61. (c) Daniel, some rights reserved (CC BY), uploaded by Daniel
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  • 77. (c) C. Mallory, some rights reserved (CC BY-NC), uploaded by C. Mallory
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