Insects & Arthropods of Montana
The insects & arthropods most often spotted in Montana, ranked by recent research-grade observations.
26,987
recent observations
50
species listed
50
insects & arthropods
Naturalists have logged 26,987 research-grade observations across the 50 most-recorded species in Montana. The most frequently seen is the California Tortoiseshell, with 1,057 recorded sightings.
Most-observed insects & arthropods in Montana
California Tortoiseshell
Nymphalis californica
1,057 observations
Vancouver Bumble Bee
Bombus vancouverensis
947 observations · iNaturalist
White-spotted Sawyer
Monochamus scutellatus
922 observations
Spotted Tussock Moth
Lophocampa maculata
860 observations
Mormon Fritillary
Argynnis mormonia
802 observations · iNaturalist
Western Honey Bee
Apis mellifera
768 observations
Hunt's Bumble Bee
Bombus huntii
755 observations · iNaturalist
Western Tent Caterpillar Moth
Malacosoma californica
726 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
711 observations
Essex Skipper
Thymelicus lineola
707 observations · iNaturalist
Police Car Moth
Gnophaela vermiculata
678 observations · iNaturalist
Western Conifer Seed Bug
Leptoglossus occidentalis
676 observations · iNaturalist
Lorquin's Admiral
Limenitis lorquini
665 observations
Leafy Spurge Hawkmoth
Hyles euphorbiae
654 observations · iNaturalist
European Mantis
Mantis religiosa
640 observations
Milbert's Tortoiseshell
Aglais milberti
603 observations · iNaturalist
Painted Lady
Vanessa cardui
597 observations
Two-striped Grasshopper
Melanoplus bivittatus
589 observations · iNaturalist
Boisduval's Blue
Icaricia icarioides
589 observations · iNaturalist
Green Comma
Polygonia faunus
572 observations
Rocky Mountain Parnassian
Parnassius smintheus
562 observations · iNaturalist
Common Wood-Nymph
Cercyonis pegala
551 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
516 observations
Small Wood-Nymph
Cercyonis oetus
513 observations · iNaturalist
Goldenrod Crab Spider
Misumena vatia
502 observations
Ornate Checkered Beetle
Trichodes ornatus
475 observations
Field Crescent
Phyciodes pulchella
462 observations · iNaturalist
Common Alpine
Erebia epipsodea
461 observations · iNaturalist
Banded Garden Spider
Argiope trifasciata
444 observations · iNaturalist
Anise Swallowtail
Papilio zelicaon
426 observations
Asian Lady Beetle
Harmonia axyridis
423 observations
Mormon Cricket
Anabrus simplex
412 observations
Common Ringlet
Coenonympha california
410 observations
Small White
Pieris rapae
406 observations
Pale Swallowtail
Papilio eurymedon
402 observations
Common Drone Fly
Eristalis tenax
402 observations
Clouded Sulphur
Colias philodice
392 observations
Transverse Lady Beetle
Coccinella transversoguttata
390 observations · iNaturalist
Hoary Comma
Polygonia gracilis
386 observations
Nevada Bumble Bee
Bombus nevadensis
382 observations
White-lined Sphinx
Hyles lineata
374 observations · iNaturalist
Silvery Blue
Glaucopsyche lygdamus
372 observations
Great Spangled Fritillary
Argynnis cybele
367 observations · iNaturalist
Western Tiger Swallowtail
Papilio rutulus
365 observations
Woodland Skipper
Ochlodes sylvanoides
365 observations · iNaturalist
Two-tailed Swallowtail
Papilio multicaudata
361 observations · iNaturalist
Flame Skimmer
Libellula saturata
353 observations · iNaturalist
Hayden's Ringlet
Coenonympha haydenii
333 observations · iNaturalist
Yellow Velvet Beetle
Lepturobosca chrysocoma
332 observations · iNaturalist
Mariposa Copper
Tharsalea mariposa
330 observations · iNaturalist
Insects & Arthropods in nearby places
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