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California Tortoiseshell
Nymphalis californica
698 observations
Spotted Tussock Moth
Lophocampa maculata
628 observations
Western Tent Caterpillar Moth
Malacosoma californica
610 observations
Mourning Cloak
Nymphalis antiopa
586 observations
Leafy Spurge Hawkmoth
Hyles euphorbiae
520 observations
Lorquin's Admiral
Limenitis lorquini
472 observations
Essex Skipper
Thymelicus lineola
460 observations
Police Car Moth
Gnophaela vermiculata
460 observations
Common Wood-Nymph
Cercyonis pegala
437 observations
Green Comma
Polygonia faunus
419 observations
Milbert's Tortoiseshell
Aglais milberti
405 observations
Field Crescent
Phyciodes pulchella
348 observations
Small White
Pieris rapae
347 observations
Painted Lady
Vanessa cardui
346 observations
Mormon Fritillary
Argynnis mormonia
324 observations
Boisduval's Blue
Icaricia icarioides
321 observations
Great Spangled Fritillary
Argynnis cybele
316 observations
Invasive
Knapweed Root Moth
Agapeta zoegana
305 observations
Two-tailed Swallowtail
Papilio multicaudata
296 observations
Common Alpine
Erebia epipsodea
285 observations
Woodland Skipper
Ochlodes sylvanoides
283 observations
White-lined Sphinx
Hyles lineata
282 observations
Anise Swallowtail
Papilio zelicaon
279 observations
Western Tiger Swallowtail
Papilio rutulus
273 observations
Hoary Comma
Polygonia gracilis
261 observations
Satyr Comma
Polygonia satyrus
260 observations
Small Wood-Nymph
Cercyonis oetus
260 observations
Mariposa Copper
Tharsalea mariposa
249 observations
Clouded Sulphur
Colias philodice
247 observations
Pale Swallowtail
Papilio eurymedon
245 observations
Western White
Pontia occidentalis
242 observations
Rocky Mountain Parnassian
Parnassius smintheus
215 observations
Common Ringlet
Coenonympha california
213 observations
Silvery Blue
Glaucopsyche lygdamus
187 observations
Polyphemus Moth
Antheraea polyphemus
178 observations
Hayden's Ringlet
Coenonympha haydenii
157 observations
Vashti Sphinx
Sphinx vashti
151 observations
Ranchman's Tiger Moth
Arctia virginalis
149 observations
Northern Crescent
Phyciodes cocyta
148 observations
Glover's Silkmoth
Hyalophora gloveri
148 observations
Salt Marsh Moth
Estigmene acrea
144 observations
Large Gray Dagger
Acronicta insita
139 observations
Large Yellow Underwing
Noctua pronuba
134 observations
Melissa Blue
Plebejus melissa
134 observations
Alfalfa Looper
Autographa californica
132 observations
Blue Copper
Tharsalea heteronea
130 observations
Virginian Tiger Moth
Spilosoma virginica
129 observations
Common Checkered-Skipper
Burnsius communis
129 observations
Julia Orangetip
Anthocharis julia
128 observations
Monarch
Danaus plexippus
126 observations
Frequently Asked Questions
- The 10 most common butterflies and moths in Montana are:
- California Tortoiseshell (Nymphalis californica)
- Spotted Tussock Moth (Lophocampa maculata)
- Western Tent Caterpillar Moth (Malacosoma californica)
- Mourning Cloak (Nymphalis antiopa)
- Leafy Spurge Hawkmoth (Hyles euphorbiae)
- Lorquin's Admiral (Limenitis lorquini)
- Essex Skipper (Thymelicus lineola)
- Police Car Moth (Gnophaela vermiculata)
- Common Wood-Nymph (Cercyonis pegala)
- Green Comma (Polygonia faunus)
- The most observed butterflies and moth in Montana is California Tortoiseshell (Nymphalis californica), with 698 recorded observations.
- Some of the most commonly observed invasive butterflies and moths in Montana include:
- Knapweed Root Moth (Agapeta zoegana)