Insects & Arthropods of Yellowstone National Park
The insects & arthropods most often spotted in Yellowstone, ranked by recent research-grade observations.
Most-observed insects & arthropods in Yellowstone
Flame Skimmer
Libellula saturata
269 observations · iNaturalist
White-spotted Sawyer
Monochamus scutellatus
239 observations
Rocky Mountain Parnassian
Parnassius smintheus
228 observations · iNaturalist
Boisduval's Blue
Icaricia icarioides
193 observations · iNaturalist
Essex Skipper
Thymelicus lineola
180 observations · iNaturalist
Mormon Cricket
Anabrus simplex
176 observations · iNaturalist
Western Pondhawk
Erythemis collocata
175 observations · iNaturalist
Painted Lady
Vanessa cardui
172 observations
Silvery Blue
Glaucopsyche lygdamus
147 observations
Hayden's Ringlet
Coenonympha haydenii
131 observations · iNaturalist
Common Ringlet
Coenonympha california
128 observations
Transverse Lady Beetle
Coccinella transversoguttata
128 observations · iNaturalist
Common Alpine
Erebia epipsodea
127 observations · iNaturalist
Red-belted Bumble Bee
Bombus rufocinctus
126 observations
Mormon Fritillary
Argynnis mormonia
124 observations · iNaturalist
Spotted Tussock Moth
Lophocampa maculata
112 observations
Vancouver Bumble Bee
Bombus vancouverensis
112 observations · iNaturalist
Police Car Moth
Gnophaela vermiculata
105 observations · iNaturalist
Milbert's Tortoiseshell
Aglais milberti
102 observations · iNaturalist
Ornate Checkered Beetle
Trichodes ornatus
100 observations
Yellow Velvet Beetle
Lepturobosca chrysocoma
100 observations · iNaturalist
Seven-spotted Lady Beetle
Coccinella septempunctata
91 observations
Edith's Copper
Tharsalea editha
88 observations · iNaturalist
Nevada Bumble Bee
Bombus nevadensis
87 observations
Blue Copper
Tharsalea heteronea
82 observations · iNaturalist
Small Wood-Nymph
Cercyonis oetus
79 observations · iNaturalist
Anise Swallowtail
Papilio zelicaon
73 observations
Vivid Dancer
Argia vivida
71 observations · iNaturalist
Greenish Blue
Icaricia saepiolus
71 observations · iNaturalist
Common Whitetail
Plathemis lydia
68 observations
Western Tent Caterpillar Moth
Malacosoma californica
67 observations · iNaturalist
California Tortoiseshell
Nymphalis californica
59 observations
Large Marble
Euchloe ausonides
59 observations · iNaturalist
California Broad-necked Darkling Beetle
Coelocnemis dilaticollis
55 observations · iNaturalist
Pale Snaketail
Ophiogomphus severus
55 observations · iNaturalist
Julia Orangetip
Anthocharis julia
53 observations · iNaturalist
Western Pine Elfin
Callophrys eryphon
52 observations · iNaturalist
Two-striped Grasshopper
Melanoplus bivittatus
52 observations · iNaturalist
Relict Fritillary
Boloria kriemhild
51 observations · iNaturalist
Field Crescent
Phyciodes pulchella
49 observations · iNaturalist
Indiscriminate Cuckoo Bumble Bee
Bombus insularis
48 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
47 observations
Thicket Hairstreak
Callophrys spinetorum
46 observations · iNaturalist
Isabella Tiger Moth
Pyrrharctia isabella
46 observations
Green Comma
Polygonia faunus
43 observations
Western Bumble Bee
Bombus occidentalis
42 observations
White Satin Moth
Leucoma salicis
39 observations · iNaturalist
Mariposa Copper
Tharsalea mariposa
39 observations · iNaturalist
Common Drone Fly
Eristalis tenax
38 observations
Four-spotted Skimmer
Libellula quadrimaculata
38 observations · iNaturalist