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
Boulder County, Colorado, United States
The BAMONA database currently includes verified sighting records for 327 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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Thorybes mexicana Mexican Cloudywing
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Erynnis icelus Dreamy Duskywing
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Erynnis brizo Sleepy Duskywing
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Erynnis telemachus Rocky Mountain Duskywing
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Erynnis horatius Horace's Duskywing
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Erynnis martialis Mottled Duskywing
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Erynnis pacuvius Pacuvius Duskywing
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Erynnis funeralis Funereal Duskywing
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Erynnis afranius Afranius Duskywing
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Erynnis persius Persius Duskywing
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Pyrgus centaureae Grizzled Skipper
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Pyrgus ruralis Two-banded Checkered-Skipper
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Pyrgus scriptura Small Checkered-Skipper
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Burnsius communis Common Checkered-Skipper
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Pholisora catullus Common Sootywing
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Ancyloxypha numitor Least Skipper
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Oarisma garita Garita Skipperling
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Stinga morrisoni Morrison's Skipper
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Hesperia uncas Uncas Skipper
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Hesperia juba Juba 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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Hesperia viridis Green Skipper
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Hesperia nevada Nevada Skipper
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Atalopedes campestris Sachem
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Polites rhesus Rhesus Skipper
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Polites peckius Peck's Skipper
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Polites sabuleti Sandhill Skipper
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Polites draco Draco Skipper
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Polites themistocles Tawny-edged Skipper
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Polites origenes Crossline Skipper
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Polites mystic Long Dash
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Polites sonora Sonora Skipper
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Atrytone arogos Arogos Skipper
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Anatrytone logan Delaware Skipper
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Ochlodes sylvanoides Woodland Skipper
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Poanes taxiles Taxiles Skipper
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Paratrytone snowi Snow's Skipper
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Euphyes vestris Dun Skipper
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Euphyes bimacula Two-spotted Skipper
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Atrytonopsis hianna Dusted Skipper
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Amblyscirtes aenus Bronze Roadside-Skipper
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Amblyscirtes oslari Oslar's Roadside-Skipper
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Amblyscirtes vialis Common Roadside-Skipper
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Amblyscirtes phylace Orange-headed Roadside-Skipper
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Piruna pirus Russet Skipperling
Papilionidae Parnassians and Swallowtails
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Parnassius smintheus Rocky Mountain Parnassian
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Battus philenor Pipevine Swallowtail
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Papilio polyxenes Black Swallowtail
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Papilio zelicaon Anise Swallowtail
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Papilio indra Indra Swallowtail
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Papilio glaucus Eastern Tiger Swallowtail
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Papilio rutulus Western Tiger Swallowtail
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Papilio eurymedon Pale Swallowtail
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Papilio multicaudata Two-tailed Swallowtail
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Papilio troilus Spicebush Swallowtail
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Papilio cresphontes Giant Swallowtail
Pieridae Whites and Sulphurs
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Anthocharis julia Southern Rocky Mountain Orangetip
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Euchloe ausonides Large Marble
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Euchloe olympia Olympia Marble
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Neophasia menapia Pine White
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Pieris marginalis Margined White
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Pieris rapae Cabbage White
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Pontia beckerii Becker's 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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Ascia monuste Great Southern White
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Kricogonia lyside Lyside Sulphur
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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
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Colias meadii Mead's Sulphur
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Colias scudderi Scudder's Sulphur
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Zerene cesonia Southern Dogface
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Anteos clorinde White Angled-Sulphur
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Phoebis sennae Cloudless Sulphur
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Phoebis agarithe Large Orange Sulphur
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Phoebis philea Orange-barred Sulphur
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Eurema mexicana Mexican Yellow
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Abaeis nicippe Sleepy Orange
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Nathalis iole Dainty Sulphur
Lycaenidae Gossamer-wing Butterflies
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Lycaena cupreus Lustrous Copper
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Lycaena dione Gray Copper
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Lycaena editha Edith's Copper
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Lycaena hyllus Bronze Copper
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Lycaena rubidus Ruddy Copper
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Lycaena heteronea Blue Copper
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Lycaena helloides Purplish Copper
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Lycaena nivalis Lilac-bordered Copper
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Hypaurotis crysalus Colorado Hairstreak
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Callophrys affinis Western Green Hairstreak
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Callophrys apama "Apama" Western Green Hairstreak
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Callophrys sheridanii Sheridan's Green Hairstreak
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Callophrys gryneus Juniper Hairstreak
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Callophrys spinetorum Thicket Hairstreak
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Callophrys augustinus Brown Elfin
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Callophrys mossii Moss' Elfin
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Callophrys polios Hoary Elfin
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Callophrys eryphon Western Pine Elfin
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Satyrium titus Coral Hairstreak
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Satyrium acadica Acadian Hairstreak
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Satyrium californica California Hairstreak
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Satyrium liparops Striped Hairstreak
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Satyrium saepium Hedgerow Hairstreak
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Satyrium behrii Behr's Hairstreak
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Strymon melinus Gray Hairstreak
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Ministrymon leda Leda Ministreak
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Ministrymon azia Gray Ministreak
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Leptotes marina Marine Blue
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Brephidium exilis Western Pygmy-Blue
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Cupido comyntas Eastern Tailed-Blue
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Cupido amyntula Western Tailed-Blue
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Celastrina ladon Spring Azure
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Celastrina lucia Northern Azure
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Celastrina humulus Hops Azure
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Glaucopsyche piasus Arrowhead Blue
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Glaucopsyche lygdamus Silvery Blue
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Euphilotes ancilla Rocky Mountain Dotted-Blue
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Euphilotes rita Rita Dotted-Blue
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Echinargus isola Reakirt's 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
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Plebejus acmon Acmon Blue
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Plebejus lupini Lupine Blue
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Plebejus glandon Arctic Blue
Riodinidae Metalmarks
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Apodemia mormo Mormon Metalmark
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Apodemia nais Nais Metalmark
Nymphalidae Brush-footed Butterflies
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Libytheana carinenta American Snout
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Danaus plexippus Monarch
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Danaus gilippus Queen
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Agraulis vanillae Gulf Fritillary
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Heliconius charithonia Zebra Heliconian
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Euptoieta claudia Variegated Fritillary
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Speyeria aphrodite Aphrodite Fritillary
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Speyeria idalia Regal 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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Speyeria atlantis Atlantis Fritillary
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Speyeria hesperis Northwestern Fritillary
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Speyeria mormonia Mormon Fritillary
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Boloria eunomia Bog Fritillary
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Boloria selene Silver-bordered Fritillary
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Boloria frigga Frigga Fritillary
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Boloria freija Freija Fritillary
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Boloria chariclea Arctic Fritillary
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Limenitis archippus Viceroy
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Limenitis weidemeyerii Weidemeyer's Admiral
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Asterocampa celtis Hackberry Emperor
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Mestra amymone Common Mestra
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Poladryas minuta Dotted Checkerspot
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Poladryas arachne Arachne Checkerspot
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Chlosyne fulvia Fulvia Checkerspot
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Chlosyne nycteis Silvery Checkerspot
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Chlosyne gorgone Gorgone Checkerspot
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Chlosyne whitneyi Rockslide Checkerspot
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Chlosyne palla Northern Checkerspot
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Phyciodes graphica Vesta or Graphic Crescent
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Phyciodes pallida Pale Crescent
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Phyciodes mylitta Mylitta Crescent
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Phyciodes tharos Pearl Crescent
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Phyciodes cocyta Northern Crescent
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Phyciodes pulchella Field Crescent
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Anthanassa texana Texan Crescent
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Euphydryas chalcedona Chalcedon Checkerspot
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Euphydryas anicia Anicia Checkerspot
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Junonia coenia Common Buckeye
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Polygonia interrogationis Question Mark
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Polygonia comma Eastern Comma
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Polygonia satyrus Satyr Comma
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Polygonia faunus Green Comma
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Polygonia gracilis Hoary Comma
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Polygonia zephyrus Zephyr 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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Nymphalis californica California Tortoiseshell
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Vanessa virginiensis American Lady
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Vanessa cardui Painted Lady
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Vanessa annabella West Coast Lady
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Vanessa atalanta Red Admiral
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Anaea andria Goatweed Leafwing
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Coenonympha tullia Common Ringlet
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Cyllopsis pertepida Canyonland Satyr
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Erebia magdalena Magdalena Alpine
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Erebia epipsodea Common Alpine
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Erebia pawlowskii Yellow-dotted Alpine
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Erebia callias Colorado Alpine
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Neominois ridingsii Ridings' Satyr
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Oeneis jutta Jutta Arctic
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Oeneis melissa Melissa Arctic
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Oeneis chryxus Chryxus Arctic
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Oeneis uhleri Uhler's Arctic
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Cercyonis pegala Common Wood-Nymph
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Cercyonis oetus Small Wood-Nymph
Saturniidae Wild Silk Moths
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Automeris io Io moth
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Coloradia doris Doris' pinemoth
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Coloradia pandora Pandora pinemoth
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Agapema homogena Rocky Mountain agapema
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Hyalophora cecropia Cecropia silkmoth
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Hyalophora columbia Columbia silkmoth
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Antheraea polyphemus Polyphemus moth
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Hyalophora gloveri Glover's Silkmoth
Sphingidae Sphinx Moths, Hawkmoths
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Sphinx gordius Apple sphinx
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Sphinx perelegans Elegant sphinx
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Pachysphinx modesta Modest sphinx
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Ceratomia undulosa Waved sphinx
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Pachysphinx occidentalis Big poplar sphinx
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Paonias excaecata Blinded sphinx
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Sphinx vashti Vashti sphinx
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Paonias myops Small-eyed sphinx
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Manduca sexta Carolina sphinx
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Smerinthus cerisyi One-eyed sphinx
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Smerinthus jamaicensis Twin-spotted sphinx
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Sphinx drupiferarum Wild cherry sphinx
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Amphion floridensis Nessus sphinx
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Hyles lineata White-lined Sphinx
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Erinnyis ello Ello sphinx
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Proserpinus juanita Juanita sphinx
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Eumorpha achemon Achemon sphinx
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Hemaris diffinis Snowberry Clearwing
Notodontidae Prominents
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Pheosia rimosa Black-rimmed Prominent
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Odontosia elegans Elegant Prominent
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Furcula scolopendrina Zigzag Furcula Moth
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Coelodasys unicornis Unicorn Caterpillar Moth
Noctuidae Owlet Moths, Miller Moths
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Acronicta americana American Dagger Moth
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Euxoa auxiliaris Army Cutworm
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Noctua pronuba European Yellow Underwing
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Hecatera dysodea Small Ranunculus Moth
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Xestia smithii Smith's Dart
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Helicoverpa zea Corn Earworm Moth
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Schinia gaurae Clouded Crimson
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Alypia octomaculata Eight-spotted Forester
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Tyta luctuosa Field Bindweed Moth
Erebidae Erebid Moths
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Spilosoma virginica Virginian Tiger Moth or Yellow Woolybear Moth
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Cisseps fulvicollis Yellow-collared Scape Moth
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Eilema bicolor Bicolored Moth
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Platarctia parthenos St. Lawrence Tiger Moth
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Arachnis picta Painted Tiger Moth
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Virbia aurantiaca Orange Holomelina
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Crambidia casta Pearly-Winged Lichen Moth
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Lophocampa maculata Spotted Tussock Moth or Yellow-Spotted Tiger Moth
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Lycomorpha pholus Black-and-yellow Lichen Moth
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Arctia caja Garden Tiger Moth or Great Tiger Moth
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Pyrrharctia isabella Isabella Tiger Moth or Banded Woolybear
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Platyprepia virginalis Ranchman's Tiger Moth
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Grammia parthenice Parthenice Tiger Moth
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Estigmene acrea Salt Marsh Moth or Acrea Moth
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Grammia phyllira Phyllira Tiger Moth
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Hyphantria cunea Fall Webworm Moth
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Catocala luciana Luciana Underwing
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Ascalapha odorata Black Witch
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Catocala ultronia Ultronia Underwing
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Catocala amatrix Sweetheart Underwing
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Caenurgina erechtea Forage Looper Moth
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Zale lunata Lunate Zale
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Orgyia sp. Tussock moths
Oecophoridae Concealer Moths
Elachistidae Grass Miner Moths
Zygaenidae Zygaenid Moths
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Harrisina metallica Western Grapeleaf Skeletonizer
Crambidae Crambid Snout Moths
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Sitochroa chortalis Dimorphic Sitochroa Moth
Geometridae Geometer Moths, Looper Moths
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Phaeoura mexicanaria Pine Looper
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Synchlora aerata Wavy-Lined Emerald
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Trichodezia albovittata White-striped Black
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Haematopis grataria Chickweed Geometer
Lasiocampidae Lasiocampid Moths
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Malacosoma californicum Western Tent Caterpillar Moth