National Moth Week is July 20-28, 2024!
Moths are amazing creatures. Take photographs and share your moth sightings with us to document the moths where you live.
Regional Species Checklists
Powder River County, Montana, United States
The BAMONA database currently includes verified sighting records for 104 species from this region.
Hesperiidae Skippers
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Epargyreus clarus Silver-spotted Skipper
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Thorybes pylades Northern Cloudywing
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Erynnis icelus Dreamy Duskywing
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Erynnis afranius Afranius Duskywing
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Erynnis persius Persius Duskywing
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Burnsius communis Common Checkered-Skipper
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Pholisora catullus Common Sootywing
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Hesperopsis libya Mohave Sootywing
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Ancyloxypha numitor Least Skipper
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Oarisma garita Garita Skipperling
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Hesperia uncas Uncas Skipper
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Hesperia juba Juba Skipper
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Hesperia assiniboia Plains Skipper
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Hesperia colorado Western Branded Skipper
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Hesperia ottoe Ottoe Skipper
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Hesperia leonardus Leonard's Skipper
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Hesperia pahaska Pahaska Skipper
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Polites peckius Peck's Skipper
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Polites themistocles Tawny-edged Skipper
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Polites mystic Long Dash
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Anatrytone logan Delaware Skipper
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Ochlodes sylvanoides Woodland Skipper
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Poanes hobomok Hobomok Skipper
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Euphyes vestris Dun Skipper
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Amblyscirtes oslari Oslar's Roadside-Skipper
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Amblyscirtes vialis Common Roadside-Skipper
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NotAmblyscirtes simius Simius Roadside-Skipper
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Megathymus streckeri Strecker's Giant-Skipper
Papilionidae Parnassians and Swallowtails
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Papilio machaon Old World Swallowtail
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Papilio polyxenes Black Swallowtail
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Papilio zelicaon Anise Swallowtail
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Papilio canadensis Canadian Tiger Swallowtail
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Papilio rutulus Western Tiger Swallowtail
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Papilio multicaudata Two-tailed Swallowtail
Pieridae Whites and Sulphurs
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Euchloe ausonides Large Marble
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Euchloe olympia Olympia Marble
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Pieris rapae Cabbage White
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Pontia protodice Checkered White
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Pontia occidentalis Western White
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Pontia sisymbrii Spring White
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Colias philodice Clouded Sulphur
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Colias eurytheme Orange Sulphur
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Colias alexandra Queen Alexandra's Sulphur
Lycaenidae Gossamer-wing Butterflies
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Lycaena dione Gray Copper
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Lycaena hyllus Bronze Copper
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Lycaena rubidus Ruddy Copper
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Lycaena helloides Purplish Copper
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Callophrys gryneus Juniper Hairstreak
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Callophrys eryphon Western Pine Elfin
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Satyrium titus Coral Hairstreak
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Strymon melinus Gray Hairstreak
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Celastrina ladon Spring Azure
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Celastrina lucia Northern Azure
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Celastrina neglecta Summer Azure
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Glaucopsyche lygdamus Silvery Blue
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Euphilotes ancilla Rocky Mountain Dotted-Blue
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Plebejus melissa Melissa Blue (includes Karner Blue)
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Plebejus saepiolus Greenish Blue
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Plebejus icarioides Boisduval's Blue
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Plebejus shasta Shasta Blue
Nymphalidae Brush-footed Butterflies
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Danaus plexippus Monarch
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Euptoieta claudia Variegated Fritillary
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Speyeria cybele Great Spangled Fritillary
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Speyeria aphrodite Aphrodite Fritillary
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Speyeria edwardsii Edwards' Fritillary
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Speyeria coronis Coronis Fritillary
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Speyeria zerene Zerene Fritillary
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Speyeria callippe Callippe Fritillary
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Boloria selene Silver-bordered Fritillary
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Limenitis archippus Viceroy
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Limenitis weidemeyerii Weidemeyer's Admiral
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Chlosyne gorgone Gorgone Checkerspot
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Chlosyne acastus Sagebrush Checkerspot
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Phyciodes tharos Pearl Crescent
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Phyciodes cocyta Northern Crescent
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Phyciodes batesii Tawny Crescent
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Euphydryas chalcedona Chalcedon Checkerspot
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Euphydryas anicia Anicia Checkerspot
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Polygonia gracilis Hoary Comma
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Polygonia progne Gray Comma
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Aglais milberti Milbert's Tortoiseshell
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Nymphalis antiopa Mourning Cloak
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Vanessa cardui Painted Lady
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Vanessa atalanta Red Admiral
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Coenonympha tullia Common Ringlet
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Neominois ridingsii Ridings' Satyr
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Oeneis uhleri Uhler's Arctic
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Cercyonis pegala Common Wood-Nymph
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Cercyonis meadii Mead's Wood-Nymph
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Cercyonis oetus Small Wood-Nymph
Noctuidae Owlet Moths, Miller Moths
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Anagrapha falcifera Celery Looper Moth
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Noctua pronuba European Yellow Underwing
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Apamea amputatrix Yellow-headed Cutworm Moth
Erebidae Erebid Moths
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Hypoprepia miniata Scarlet-winged Lichen Moth
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Caenurgina crassiuscula Clover Looper Moth
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Caenurgina erechtea Forage Looper Moth
Tortricidae Tortricid Moths
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Archips strianus Striated Tortrix Moth
Geometridae Geometer Moths, Looper Moths
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Scopula junctaria Simple Wave