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
Weld County, Colorado, United States
The BAMONA database currently includes verified sighting records for 186 species from this region.
Hesperiidae Skippers
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Epargyreus clarus Silver-spotted Skipper
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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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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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Hylephila phyleus Fiery Skipper
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Hesperia uncas Uncas Skipper
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Hesperia colorado Western Branded Skipper
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Hesperia leonardus Leonard's Skipper
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Hesperia pahaska Pahaska 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 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 taxiles Taxiles Skipper
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Euphyes vestris Dun Skipper
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Euphyes bimacula Two-spotted 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
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Megathymus yuccae Yucca Giant-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 glaucus Eastern Tiger Swallowtail
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Papilio rutulus Western Tiger Swallowtail
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Papilio multicaudata Two-tailed Swallowtail
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Papilio cresphontes Giant 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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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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Zerene cesonia Southern Dogface
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Phoebis sennae Cloudless 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 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 affinis Western Green Hairstreak
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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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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 behrii Behr's Hairstreak
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Strymon melinus Gray Hairstreak
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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 neglecta Summer 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 lupini Lupine Blue
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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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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Limenitis archippus Viceroy
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Limenitis weidemeyerii Weidemeyer's Admiral
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Asterocampa celtis Hackberry Emperor
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Poladryas minuta Dotted Checkerspot
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Chlosyne gorgone Gorgone Checkerspot
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Phyciodes tharos Pearl Crescent
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Phyciodes pulchella Field Crescent
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Euphydryas chalcedona Chalcedon Checkerspot
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Junonia coenia Common Buckeye
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Polygonia interrogationis Question Mark
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Polygonia satyrus Satyr Comma
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Polygonia gracilis Hoary Comma
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Aglais milberti Milbert's Tortoiseshell
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Nymphalis antiopa Mourning Cloak
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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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Neominois ridingsii Ridings' Satyr
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Neominois wyomingo Wyoming Satyr
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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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Hemileuca nevadensis Nevada buckmoth
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Hyalophora columbia Columbia silkmoth
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Antheraea polyphemus Polyphemus moth
Sphingidae Sphinx Moths, Hawkmoths
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Smerinthus jamaicensis Twin-spotted sphinx
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Lintneria separatus Separated sphinx
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Ceratomia amyntor Elm sphinx
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Manduca quinquemaculata Five-spotted hawkmoth
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Manduca sexta Carolina sphinx
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Pachysphinx occidentalis Big poplar sphinx
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Ceratomia undulosa Waved sphinx
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Smerinthus cerisyi One-eyed sphinx
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Euproserpinus wiesti Wiest's primrose sphinx
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Hemaris diffinis Snowberry Clearwing
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Hyles gallii Bedstraw hawkmoth
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Hyles lineata White-lined Sphinx
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Proserpinus juanita Juanita sphinx
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Eumorpha achemon Achemon sphinx
Notodontidae Prominents
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Gluphisia septentrionis Common Gluphisia
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Furcula scolopendrina Zigzag Furcula Moth
Noctuidae Owlet Moths, Miller Moths
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Megalographa biloba Bilobed Looper Moth
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Nephelodes minians Bronzed Cutworm Moth
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Noctua pronuba European Yellow Underwing
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Schinia gaurae Clouded Crimson
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Schinia sanguinea Bleeding Flower Moth
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Schinia lucens Leadplant Flower Moth
Erebidae Erebid Moths
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Halysidota tessellaris Banded Tussock Moth or Pale Tiger Moth
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Pygarctia spraguei Sprague's Pygarctia
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Cisseps fulvicollis Yellow-collared Scape Moth
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Phragmatobia fuliginosa Ruby Tiger Moth
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Hypoprepia miniata Scarlet-winged Lichen Moth
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Pyrrharctia isabella Isabella Tiger Moth or Banded Woolybear
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Estigmene acrea Salt Marsh Moth or Acrea Moth
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Grammia parthenice Parthenice Tiger Moth
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Spilosoma virginica Virginian Tiger Moth or Yellow Woolybear Moth
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Caenurgina erechtea Forage Looper Moth
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Ascalapha odorata Black Witch
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Catocala amatrix Sweetheart Underwing
Elachistidae Grass Miner Moths
Sesiidae Sesiid Moths
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Synanthedon exitiosa Peachtree Borer Moth
Geometridae Geometer Moths, Looper Moths
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Plataea trilinearia Sagebrush Girdle Moth