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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.

71,734
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 71,734 research-grade observations across the 50 most-recorded species near St. Louis. The most frequently seen is the Brown-belted Bumble Bee, with 8,608 recorded sightings.

Most-observed insects & arthropods near St. Louis

Brown-belted Bumble Bee
Bombus griseocollis
8,608 observations
Common Eastern Bumble Bee
Bombus impatiens
6,908 observations
Western Honey Bee
Apis mellifera
6,872 observations
Eastern Carpenter Bee
Xylocopa virginica
5,228 observations
Ligated Furrow Bee
Halictus ligatus
3,688 observations · iNaturalist
Monarch
Danaus plexippus
3,160 observations
Two-spotted Bumble Bee
Bombus bimaculatus
1,998 observations
Eastern Tiger Swallowtail
Papilio glaucus
1,795 observations
Asian Lady Beetle
Harmonia axyridis
1,451 observations
Common Buckeye
Junonia coenia
1,250 observations
Black Swallowtail
Papilio polyxenes
1,222 observations
Silver-spotted Skipper
Epargyreus clarus
1,220 observations
Black-and-gold Bumble Bee
Bombus auricomus
1,194 observations
Fiery Skipper
Hylephila phyleus
1,140 observations · iNaturalist
American Bumble Bee
Bombus pensylvanicus
1,139 observations
Carolina Mantis
Stagmomantis carolina
1,077 observations
Painted Lady
Vanessa cardui
958 observations
Pearl Crescent
Phyciodes tharos
932 observations
Large Milkweed Bug
Oncopeltus fasciatus
914 observations
Huron Skipper
Atalopedes huron
910 observations · iNaturalist
Bicolored Striped Sweat Bee
Agapostemon virescens
901 observations
Red-spotted Admiral
Limenitis arthemis
864 observations
Spicebush Swallowtail
Papilio troilus
848 observations
Ailanthus Webworm Moth
Atteva aurea
840 observations · iNaturalist
Two-spotted Longhorn Bee
Melissodes bimaculatus
830 observations
Eastern Tailed-Blue
Everes comyntas
813 observations
Pipevine Swallowtail
Battus philenor
809 observations
Hackberry Emperor
Asterocampa celtis
804 observations
Blue Dasher
Pachydiplax longipennis
780 observations
Bold Jumping Spider
Phidippus audax
777 observations
Small White
Pieris rapae
765 observations
Margined Calligrapher
Toxomerus marginatus
765 observations · iNaturalist
European Woolcarder Bee
Anthidium manicatum
756 observations
Red Admiral
Vanessa atalanta
702 observations
Spotted Cucumber Beetle
Diabrotica undecimpunctata
672 observations
Cloudless Sulphur
Phoebis sennae
658 observations
Brown Marmorated Stink Bug
Halyomorpha halys
628 observations
Common Whitetail
Plathemis lydia
626 observations
Brown Recluse
Loxosceles reclusa
619 observations
Polyphemus Moth
Antheraea polyphemus
598 observations
Differential Grasshopper
Melanoplus differentialis
567 observations
Tan Jumping Spider
Platycryptus undatus
562 observations · iNaturalist
Hibiscus Turret Bee
Ptilothrix bombiformis
553 observations · iNaturalist
Gray Hairstreak
Strymon melinus
504 observations
Viceroy
Limenitis archippus
497 observations
Japanese Beetle
Popillia japonica
481 observations
Yellow Garden Spider
Argiope aurantia
478 observations
Margined Leatherwing Beetle
Chauliognathus marginatus
461 observations · iNaturalist
Eastern Pondhawk
Erythemis simplicicollis
460 observations
Variegated Fritillary
Euptoieta claudia
452 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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