Insects & Arthropods of Rocky Mountain National Park
The insects & arthropods most often spotted in Rocky Mountain, ranked by recent research-grade observations.
Most-observed insects & arthropods in Rocky Mountain
Rocky Mountain Parnassian
Parnassius smintheus
337 observations · iNaturalist
Spotted Tussock Moth
Lophocampa maculata
276 observations
Weidemeyer's Admiral
Limenitis weidemeyerii
240 observations
White-spotted Sawyer
Monochamus scutellatus
234 observations
Police Car Moth
Gnophaela vermiculata
230 observations · iNaturalist
Hoary Comma
Polygonia gracilis
220 observations
Blue Fungus Beetle
Cypherotylus californicus
162 observations · iNaturalist
Western Tiger Swallowtail
Papilio rutulus
137 observations
Red Admiral
Vanessa atalanta
123 observations
White-lined Sphinx
Hyles lineata
123 observations · iNaturalist
Painted Lady
Vanessa cardui
118 observations
Arctic Blue
Agriades glandon
108 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
106 observations
Greenish Blue
Icaricia saepiolus
103 observations · iNaturalist
Small Wood-Nymph
Cercyonis oetus
97 observations · iNaturalist
Ornate Checkered Beetle
Trichodes ornatus
92 observations
Common Ringlet
Coenonympha california
92 observations
Dorcas Copper
Tharsalea dorcas
85 observations · iNaturalist
Hunt's Bumble Bee
Bombus huntii
84 observations · iNaturalist
Mead's Sulphur
Colias meadii
80 observations · iNaturalist
Green Comma
Polygonia faunus
77 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
76 observations
Nevada Bumble Bee
Bombus nevadensis
74 observations
Pale Swallowtail
Papilio eurymedon
72 observations
Queen Alexandra’s Sulphur
Colias alexandra
68 observations
Rocky Mountain Maple Felt Mite
Aceria calaceris
67 observations · iNaturalist
Northern Checkerspot
Chlosyne palla
63 observations · iNaturalist
Colorado Black-notched Bumble Bee
Bombus bifarius
63 observations · iNaturalist
Western Pine Elfin
Callophrys eryphon
62 observations · iNaturalist
Variegated Fritillary
Euptoieta claudia
61 observations
Margined White
Pieris marginalis
61 observations · iNaturalist
Arctic Fritillary
Boloria chariclea
60 observations
Russet Skipperling
Piruna pirus
58 observations · iNaturalist
Mormon Fritillary
Argynnis mormonia
55 observations · iNaturalist
Field Crescent
Phyciodes pulchella
54 observations · iNaturalist
Goldenrod Crab Spider
Misumena vatia
53 observations
Adejeania vexatrix
Adejeania vexatrix
53 observations · iNaturalist
Nuttall's blister beetle
Lytta nuttalli
53 observations · iNaturalist
Silvery Checkerspot
Chlosyne nycteis
52 observations · iNaturalist
Ruddy Copper
Tharsalea rubidus
52 observations · iNaturalist
Paddle-tailed Darner
Aeshna palmata
51 observations · iNaturalist
Anise Swallowtail
Papilio zelicaon
48 observations
Small White
Pieris rapae
47 observations
Transverse Lady Beetle
Coccinella transversoguttata
47 observations · iNaturalist
Large Marble
Euchloe ausonides
45 observations · iNaturalist
American Branded Skipper
Hesperia colorado
45 observations · iNaturalist
Echo Azure
Celastrina echo
44 observations · iNaturalist
Colorado Alpine
Erebia callias
44 observations · iNaturalist
Lupine Blue
Icaricia lupini
43 observations · iNaturalist
Milbert's Tortoiseshell
Aglais milberti
42 observations · iNaturalist