Insects & Arthropods of Denver, Colorado
The insects & arthropods most often spotted near Denver, ranked by recent research-grade observations.
46,150
recent observations
50
species listed
50
insects & arthropods
Naturalists have logged 46,150 research-grade observations across the 50 most-recorded species near Denver. The most frequently seen is the Western Honey Bee, with 3,570 recorded sightings.
Rarer finds confirmed near Denver include Ambush Bug - uncommon enough that a sighting is worth logging.
Most-observed insects & arthropods near Denver
Western Honey Bee
Apis mellifera
3,570 observations
Bold Jumping Spider
Phidippus audax
2,411 observations
Japanese Beetle
Popillia japonica
1,784 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
1,774 observations
Painted Lady
Vanessa cardui
1,624 observations
Hunt's Bumble Bee
Bombus huntii
1,502 observations · iNaturalist
European Paper Wasp
Polistes dominula
1,390 observations
Monarch
Danaus plexippus
1,325 observations
Two-tailed Swallowtail
Papilio multicaudata
1,300 observations · iNaturalist
Two-striped Grasshopper
Melanoplus bivittatus
1,274 observations · iNaturalist
Convergent Lady Beetle
Hippodamia convergens
1,230 observations
Golden Northern Bumble Bee
Bombus fervidus
1,193 observations
Four-spotted Moth
Tyta luctuosa
1,167 observations · iNaturalist
Small White
Pieris rapae
1,101 observations
Asian Lady Beetle
Harmonia axyridis
1,095 observations
White-lined Sphinx
Hyles lineata
1,056 observations · iNaturalist
Brown-belted Bumble Bee
Bombus griseocollis
1,027 observations
Common Checkered-Skipper
Burnsius communis
976 observations · iNaturalist
European Mantis
Mantis religiosa
915 observations
Eastern Boxelder Bug
Boisea trivittata
882 observations
Western Black Widow
Latrodectus hesperus
866 observations · iNaturalist
Great Spreadwing
Archilestes grandis
752 observations · iNaturalist
Taxiles Skipper
Lon taxiles
736 observations · iNaturalist
Widow Skimmer
Libellula luctuosa
712 observations
Western Conifer Seed Bug
Leptoglossus occidentalis
686 observations · iNaturalist
Variegated Meadowhawk
Sympetrum corruptum
670 observations · iNaturalist
Colorado Soldier Beetle
Chauliognathus basalis
656 observations · iNaturalist
Variegated Fritillary
Euptoieta claudia
649 observations
Greater Anglewing
Microcentrum rhombifolium
647 observations · iNaturalist
Band-winged Meadowhawk
Sympetrum semicinctum
636 observations · iNaturalist
Small Milkweed Bug
Lygaeus kalmii
633 observations
Red-femured Milkweed Borer
Tetraopes femoratus
615 observations · iNaturalist
Nevada Bumble Bee
Bombus nevadensis
593 observations
Jagged Ambush Bug
Phymata americana
588 observations
Apache Jumping Spider
Phidippus apacheanus
579 observations · iNaturalist
Differential Grasshopper
Melanoplus differentialis
577 observations
Gray Hairstreak
Strymon melinus
565 observations
Woodlouse Spider
Dysdera crocata
561 observations
Common Whitetail
Plathemis lydia
556 observations
Red-backed Darkling Beetle
Eleodes suturalis
549 observations · iNaturalist
Checkered White
Pontia protodice
525 observations · iNaturalist
Blue Fungus Beetle
Cypherotylus californicus
512 observations · iNaturalist
Sutured Longhorn Beetle
Batyle suturalis
493 observations · iNaturalist
American Bumble Bee
Bombus pensylvanicus
488 observations
Twelve-spotted Skimmer
Libellula pulchella
480 observations
European Harvestman
Phalangium opilio
473 observations · iNaturalist
Red Admiral
Vanessa atalanta
457 observations
Eurasian Drone Fly
Eristalis arbustorum
443 observations · iNaturalist
Western Yellowjacket
Vespula pensylvanica
437 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
420 observations · iNaturalist
Insects & Arthropods in nearby places
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