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Insects & Arthropods of Glacier National Park

The insects & arthropods most often spotted in Glacier, ranked by recent research-grade observations.

4,404
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 4,404 research-grade observations across the 50 most-recorded species in Glacier. The most frequently seen is the Western Tent Caterpillar Moth, with 304 recorded sightings.

Most-observed insects & arthropods in Glacier

Western Tent Caterpillar Moth
Malacosoma californica
304 observations · iNaturalist
Spotted Tussock Moth
Lophocampa maculata
252 observations
California Tortoiseshell
Nymphalis californica
223 observations
White-spotted Sawyer
Monochamus scutellatus
207 observations
Police Car Moth
Gnophaela vermiculata
153 observations · iNaturalist
Vancouver Bumble Bee
Bombus vancouverensis
147 observations · iNaturalist
Lorquin's Admiral
Limenitis lorquini
142 observations
Common Drone Fly
Eristalis tenax
137 observations
Mourning Cloak
Nymphalis antiopa
137 observations
Field Crescent
Phyciodes pulchella
131 observations · iNaturalist
Mariposa Copper
Tharsalea mariposa
111 observations · iNaturalist
Black-tailed Bumble Bee
Bombus melanopygus
106 observations · iNaturalist
Green Comma
Polygonia faunus
103 observations
Satyr Comma
Polygonia satyrus
100 observations · iNaturalist
Rocky Mountain Maple Felt Mite
Aceria calaceris
94 observations · iNaturalist
Pale Swallowtail
Papilio eurymedon
87 observations
Western Conifer Seed Bug
Leptoglossus occidentalis
85 observations · iNaturalist
Milbert's Tortoiseshell
Aglais milberti
85 observations · iNaturalist
Anise Swallowtail
Papilio zelicaon
84 observations
Fuzzy-Horned Bumble Bee
Bombus mixtus
80 observations · iNaturalist
Yellow-fronted Bumble Bee
Bombus flavifrons
73 observations · iNaturalist
Hoary Comma
Polygonia gracilis
72 observations
Ornate Checkered Beetle
Trichodes ornatus
72 observations
Western Tiger Swallowtail
Papilio rutulus
70 observations
Yellow Velvet Beetle
Lepturobosca chrysocoma
70 observations · iNaturalist
Western White
Pontia occidentalis
69 observations
Pacific Fritillary
Boloria epithore
66 observations · iNaturalist
Blue Copper
Tharsalea heteronea
64 observations · iNaturalist
Anicia Checkerspot
Euphydryas anicia
63 observations
Meadow Flies
Chrysotoxum
61 observations · iNaturalist
Virginian Tiger Moth
Spilosoma virginica
58 observations
Goldenrod Crab Spider
Misumena vatia
57 observations
Two-striped Grasshopper
Melanoplus bivittatus
56 observations · iNaturalist
Northern Crescent
Phyciodes cocyta
55 observations · iNaturalist
Essex Skipper
Thymelicus lineola
53 observations · iNaturalist
Small Wood-Nymph
Cercyonis oetus
53 observations · iNaturalist
Mormon Fritillary
Argynnis mormonia
52 observations · iNaturalist
Rocky Mountain Parnassian
Parnassius smintheus
49 observations · iNaturalist
Common Loopwing Aphideater
Lapposyrphus lapponicus
49 observations · iNaturalist
Painted Lady
Vanessa cardui
47 observations
Margined White
Pieris marginalis
47 observations · iNaturalist
Mormon Cricket
Anabrus simplex
47 observations
Langton's Forester
Alypia langtoni
46 observations · iNaturalist
Northwestern Fritillary
Argynnis hesperis
46 observations · iNaturalist
Yellowish Cuckoo Bumble Bee
Bombus flavidus
42 observations · iNaturalist
Seven-spotted Lady Beetle
Coccinella septempunctata
41 observations
Small White
Pieris rapae
40 observations
Boisduval's Blue
Icaricia icarioides
40 observations · iNaturalist
Woodland Skipper
Ochlodes sylvanoides
39 observations · iNaturalist
Half-black Bumble Bee
Bombus vagans
39 observations · iNaturalist

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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