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Insects & Arthropods of St. Louis, MO

The insects & arthropods most often spotted near St. Louis, ranked by recent research-grade observations.

72,010
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 72,010 research-grade observations across the 50 most-recorded species near St. Louis. The most frequently seen is the Brown-belted Bumble Bee, with 8,614 recorded sightings.

Most-observed insects & arthropods near St. Louis

Brown-belted Bumble Bee
Bombus griseocollis
8,614 observations
Common Eastern Bumble Bee
Bombus impatiens
6,936 observations
Western Honey Bee
Apis mellifera
6,884 observations
Eastern Carpenter Bee
Xylocopa virginica
5,243 observations
Ligated Furrow Bee
Halictus ligatus
3,688 observations · iNaturalist
Monarch
Danaus plexippus
3,172 observations
Two-spotted Bumble Bee
Bombus bimaculatus
2,000 observations
Eastern Tiger Swallowtail
Papilio glaucus
1,799 observations
Asian Lady Beetle
Harmonia axyridis
1,463 observations
Common Buckeye
Junonia coenia
1,259 observations
Black Swallowtail
Papilio polyxenes
1,229 observations
Silver-spotted Skipper
Epargyreus clarus
1,223 observations
Black-and-gold Bumble Bee
Bombus auricomus
1,209 observations
Fiery Skipper
Hylephila phyleus
1,153 observations · iNaturalist
American Bumble Bee
Bombus pensylvanicus
1,140 observations
Carolina Mantis
Stagmomantis carolina
1,087 observations
Painted Lady
Vanessa cardui
961 observations
Pearl Crescent
Phyciodes tharos
933 observations
Large Milkweed Bug
Oncopeltus fasciatus
923 observations
Huron Skipper
Atalopedes huron
918 observations · iNaturalist
Red-spotted Admiral
Limenitis arthemis
909 observations
Bicolored Striped Sweat Bee
Agapostemon virescens
904 observations
Spicebush Swallowtail
Papilio troilus
850 observations
Ailanthus Webworm Moth
Atteva aurea
840 observations · iNaturalist
Two-spotted Longhorn Bee
Melissodes bimaculatus
830 observations
Eastern Tailed-Blue
Everes comyntas
817 observations
Pipevine Swallowtail
Battus philenor
810 observations
Hackberry Emperor
Asterocampa celtis
807 observations
Bold Jumping Spider
Phidippus audax
784 observations
Blue Dasher
Pachydiplax longipennis
780 observations
Small White
Pieris rapae
767 observations
Margined Calligrapher
Toxomerus marginatus
765 observations · iNaturalist
European Woolcarder Bee
Anthidium manicatum
757 observations
Red Admiral
Vanessa atalanta
702 observations
Spotted Cucumber Beetle
Diabrotica undecimpunctata
672 observations
Cloudless Sulphur
Phoebis sennae
663 observations
Brown Marmorated Stink Bug
Halyomorpha halys
630 observations
Common Whitetail
Plathemis lydia
626 observations
Brown Recluse
Loxosceles reclusa
620 observations
Polyphemus Moth
Antheraea polyphemus
602 observations
Differential Grasshopper
Melanoplus differentialis
570 observations
Tan Jumping Spider
Platycryptus undatus
563 observations · iNaturalist
Hibiscus Turret Bee
Ptilothrix bombiformis
553 observations · iNaturalist
Gray Hairstreak
Strymon melinus
506 observations
Viceroy
Limenitis archippus
497 observations
Yellow Garden Spider
Argiope aurantia
481 observations
Japanese Beetle
Popillia japonica
481 observations
Variegated Fritillary
Euptoieta claudia
467 observations
Margined Leatherwing Beetle
Chauliognathus marginatus
462 observations · iNaturalist
Eastern Pondhawk
Erythemis simplicicollis
461 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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