Denotes entries with color photo(s)
Denotes entries containing textual species accounts
Clodius Parnassian (Parnassius clodius)
Rocky Mountain Parnassian (Parnassius smintheus)
Pipevine Swallowtail (Battus philenor)
Black Swallowtail (Papilio polyxenes)
Old World Swallowtail (Papilio machaon)
Anise Swallowtail (Papilio zelicaon)
Indra Swallowtail (Papilio indra)
Thoas Swallowtail (Papilio thoas)
Giant Swallowtail (Papilio cresphontes)
Eastern Tiger Swallowtail (Papilio glaucus)
Western Tiger Swallowtail (Papilio rutulus)
Two-tailed Swallowtail (Papilio multicaudata)
Pale Swallowtail (Papilio eurymedon)
Spicebush Swallowtail (Papilio troilus)
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Pine White (Neophasia menapia)
Florida White (Appias drusilla)
Becker's White (Pontia beckerii)
Spring White (Pontia sisymbrii)
Checkered White (Pontia protodice)
Western White (Pontia occidentalis)
Margined White (Pieris marginalis)
Cabbage White (Pieris rapae)
Great Southern White (Ascia monuste)
Large Marble (Euchloe ausonides)
Desert Marble (Euchloe lotta)
Olympia Marble (Euchloe olympia)
Southern Rocky Mountain Orangetip (Anthocharis julia)
Southwestern Orangetip (Anthocharis thoosa)
Clouded Sulphur (Colias philodice)
Orange Sulphur (Colias eurytheme)
Queen Alexandra's Sulphur (Colias alexandra)
Mead's Sulphur (Colias meadii)
Labrador Sulphur (Colias nastes)
Scudder's Sulphur (Colias scudderi)
Southern Dogface (Zerene cesonia)
White Angled-Sulphur (Anteos clorinde)
Cloudless Sulphur (Phoebis sennae)
Orange-barred Sulphur (Phoebis philea)
Large Orange Sulphur (Phoebis agarithe)
Lyside Sulphur (Kricogonia lyside)
Mexican Yellow (Eurema mexicana)
Little Yellow (Eurema lisa)
Mimosa Yellow (Eurema nise)
Sleepy Orange (Eurema nicippe)
Dainty Sulphur (Nathalis iole)
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Tailed Copper (Lycaena arota)
American Copper (Lycaena phlaeas)
Lustrous Copper (Lycaena cupreus)
Gray Copper (Lycaena dione)
Edith's Copper (Lycaena editha)
Bronze Copper (Lycaena hyllus)
Ruddy Copper (Lycaena rubidus)
Blue Copper (Lycaena heteronea)
Purplish Copper (Lycaena helloides)
Lilac-bordered Copper (Lycaena nivalis)
Colorado Hairstreak (Hypaurotis crysalus)
Great Purple Hairstreak (Atlides halesus)
Soapberry Hairstreak (Phaeostrymon alcestis)
Coral Hairstreak (Satyrium titus)
Behr's Hairstreak (Satyrium behrii)
Sooty Hairstreak (Satyrium fuliginosum)
Acadian Hairstreak (Satyrium acadica)
California Hairstreak (Satyrium californica)
Sylvan Hairstreak (Satyrium sylvinus)
Banded Hairstreak (Satyrium calanus)
Striped Hairstreak (Satyrium liparops)
Hedgerow Hairstreak (Satyrium saepium)
Southern Hairstreak (Fixsenia favonius)
Western Green Hairstreak (Callophrys affinis)
Sheridan's Green Hairstreak (Callophrys sheridani)
Desert Green Hairstreak (Callophrys comstocki)
Sandia Hairstreak (Callophrys mcfarlandi)
Brown Elfin (Callophrys augustinus)
Desert Elfin (Callophrys fotis)
Moss' Elfin (Callophrys mossii)
Hoary Elfin (Callophrys polios)
Western Pine Elfin (Callophrys eryphon)
Thicket Hairstreak (Callophrys spinetorum)
Juniper Hairstreak (Callophrys gryneus)
White M Hairstreak (Parrhasius m-album)
Gray Hairstreak (Strymon melinus)
Red-banded Hairstreak (Calycopis cecrops)
Leda Ministreak (Ministrymon leda)
Gray Ministreak (Ministrymon azia)
Western Pygmy-Blue (Brephidium exile)
Marine Blue (Leptotes marina)
Ceraunus Blue (Hemiargus ceraunus)
Reakirt's Blue (Hemiargus isola)
Eastern Tailed-Blue (Everes comyntas)
Western Tailed-Blue (Everes amyntula)
Spring Azure (Celastrina "ladon")
Summer Azure (Celastrina neglecta)
Hops Azure (Celastrina humulus)
Western Square-dotted Blue (Euphilotes battoides)
Ellis' Dotted-Blue (Euphilotes ellisi)
Rocky Mountain Dotted-Blue (Euphilotes ancilla)
Rita Dotted-Blue (Euphilotes rita)
Spalding's Dotted-Blue (Euphilotes spaldingi)
Arrowhead Blue (Glaucopsyche piasus)
Silvery Blue (Glaucopsyche lygdamus)
Northern Blue (Lycaeides idas)
Melissa Blue (Lycaeides melissa)
Greenish Blue (Plebeius saepiolus)
Boisduval's Blue (Plebeius icarioides)
Shasta Blue (Plebeius shasta)
Lupine Blue (Plebeius lupini)
Arctic Blue (Agriades glandon)
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Mormon Metalmark (Apodemia mormo)
Nais Metalmark (Apodemia nais)
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American Snout (Libytheana carinenta)
Gulf Fritillary (Agraulis vanillae)
Julia (Dryas julia)
Zebra (Heliconius charithonius)
Variegated Fritillary (Euptoieta claudia)
Great Spangled Fritillary (Speyeria cybele)
Aphrodite Fritillary (Speyeria aphrodite)
Regal Fritillary (Speyeria idalia)
Nokomis Fritillary (Speyeria nokomis)
Edwards' Fritillary (Speyeria edwardsii)
Coronis Fritillary (Speyeria coronis)
Zerene Fritillary (Speyeria zerene)
Callippe Fritillary (Speyeria callippe)
Great Basin Fritillary (Speyeria egleis)
Atlantis Fritillary (Speyeria atlantis)
Northwestern Fritillary (Speyeria hesperis)
Hydaspe Fritillary (Speyeria hydaspe)
Mormon Fritillary (Speyeria mormonia)
Bog Fritillary (Boloria eunomia)
Silver-bordered Fritillary (Boloria selene)
Meadow Fritillary (Boloria bellona)
Frigga Fritillary (Boloria frigga)
Dingy Fritillary (Boloria improba)
Relict Fritillary (Boloria kriemhild)
Freija Fritillary (Boloria freija)
Arctic Fritillary (Boloria chariclea)
Dotted Checkerspot (Poladryas minuta)
Fulvia Checkerspot (Thessalia fulvia)
Leanira Checkerspot (Thessalia leanira)
Gorgone Checkerspot (Chlosyne gorgone)
Silvery Checkerspot (Chlosyne nycteis)
Northern Checkerspot (Chlosyne palla)
Rockslide Checkerspot (Chlosyne whitneyi)
Sagebrush Checkerspot (Chlosyne acastus)
Texan Crescent (Phyciodes texana)
Vesta Crescent (Phyciodes vesta)
Phaon Crescent (Phyciodes phaon)
Pearl Crescent (Phyciodes tharos)
Northern Crescent (Phyciodes cocyta)
Tawny Crescent (Phyciodes batesii)
Field Crescent (Phyciodes pratensis)
Painted Crescent (Phyciodes picta)
Pale Crescent (Phyciodes pallida)
Mylitta Crescent (Phyciodes mylitta)
Gillette's Checkerspot (Euphydryas gillettii)
Variable Checkerspot (Euphydryas chalcedona)
Edith's Checkerspot (Euphydryas editha)
Question Mark (Polygonia interrogationis)
Eastern Comma (Polygonia comma)
Satyr Comma (Polygonia satyrus)
Green Comma (Polygonia faunus)
Hoary Comma (Polygonia gracilis)
Gray Comma (Polygonia progne)
Compton Tortoiseshell (Nymphalis vaualbum)
California Tortoiseshell (Nymphalis californica)
Mourning Cloak (Nymphalis antiopa)
Milbert's Tortoiseshell (Nymphalis milberti)
American Lady (Vanessa virginiensis)
Painted Lady (Vanessa cardui)
West Coast Lady (Vanessa annabella)
Red Admiral (Vanessa atalanta)
Common Buckeye (Junonia coenia)
Tropical Buckeye (Junonia genoveva)
Red-spotted Purple (Limenitis arthemis)
'Astyanax' Red-spotted Purple (Limenitis arthemis astyanax)
Viceroy (Limenitis archippus)
Weidemeyer's Admiral (Limenitis weidemeyerii)
Lorquin's Admiral (Limenitis lorquini)
California Sister (Adelpha bredowii)
Common Mestra (Mestra amymone)
Ruddy Daggerwing (Marpesia petreus)
Tropical Leafwing (Anaea troglodyta)
Goatweed Leafwing (Anaea andria)
Hackberry Emperor (Asterocampa celtis)
Eyed Brown (Satyrodes eurydice)
Canyonland Satyr (Cyllopsis pertepida)
Little Wood Satyr (Megisto cymela)
Common Ringlet (Coenonympha tullia)
Common Wood Nymph (Cercyonis pegala)
Mead's Wood Nymph (Cercyonis meadii)
Great Basin Wood Nymph (Cercyonis sthenele)
Small Wood Nymph (Cercyonis oetus)
Magdalena Alpine (Erebia magdalena)
Yellow-dotted Alpine (Erebia pawlowskii)
Colorado Alpine (Erebia callias)
Common Alpine (Erebia epipsodea)
Ridings' Satyr (Neominois ridingsii)
Wyoming Satyr (Neominois wyomingo)
Chryxus Arctic (Oeneis chryxus)
Uhler's Arctic (Oeneis uhleri)
Alberta Arctic (Oeneis alberta)
White-veined Arctic (Oeneis bore)
Jutta Arctic (Oeneis jutta)
Melissa Arctic (Oeneis melissa)
Polixenes Arctic (Oeneis polixenes)
Monarch (Danaus plexippus)
Queen (Danaus gilippus)
Soldier (Danaus eresimus)
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Silver-spotted Skipper (Epargyreus clarus)
Short-tailed Skipper (Zestusa dorus)
Southern Cloudywing (Thorybes bathyllus)
Northern Cloudywing (Thorybes pylades)
Western Cloudywing (Thorybes diversus)
Mexican Cloudywing (Thorybes mexicana)
Hayhurst's Scallopwing (Staphylus hayhurstii)
Dreamy Duskywing (Erynnis icelus)
Sleepy Duskywing (Erynnis brizo)
Rocky Mountain Duskywing (Erynnis telemachus)
Horace's Duskywing (Erynnis horatius)
Mottled Duskywing (Erynnis martialis)
Pacuvius Duskywing (Erynnis pacuvius)
Funereal Duskywing (Erynnis funeralis)
Wild Indigo Duskywing (Erynnis baptisiae)
Afranius Duskywing (Erynnis afranius)
Persius Duskywing (Erynnis persius)
Grizzled Skipper (Pyrgus centaureae)
Two-banded Checkered-Skipper (Pyrgus ruralis)
Mountain Checkered-Skipper (Pyrgus xanthus)
Small Checkered-Skipper (Pyrgus scriptura)
Common Checkered-Skipper (Pyrgus communis)
White Checkered-Skipper (Pyrgus albescens)
Northern White-Skipper (Heliopetes ericetorum)
Common Sootywing (Pholisora catullus)
Mexican Sootywing (Pholisora mejicana)
Mohave Sootywing (Hesperopsis libya)
Saltbush Sootywing (Hesperopsis alpheus)
Russet Skipperling (Piruna pirus)
Clouded Skipper (Lerema accius)
Least Skipper (Ancyloxypha numitor)
Garita Skipperling (Oarisma garita)
Edwards' Skipperling (Oarisma edwardsii)
Orange Skipperling (Copaeodes aurantiacia)
European Skipper (Thymelicus lineola)
Fiery Skipper (Hylephila phyleus)
Morrison's Skipper (Stinga morrisoni)
Uncas Skipper (Hesperia uncas)
Juba Skipper (Hesperia juba)
Western Branded Skipper (Hesperia colorado)
Apache Skipper (Hesperia woodgatei)
Ottoe Skipper (Hesperia ottoe)
Leonard's Skipper (Hesperia leonardus)
Pahaska Skipper (Hesperia pahaska)
Green Skipper (Hesperia viridis)
Nevada Skipper (Hesperia nevada)
Peck's Skipper (Polites peckius)
Rhesus Skipper (Polites rhesus)
Carus Skipper (Polites carus)
Sandhill Skipper (Polites sabuleti)
Draco Skipper (Polites draco)
Tawny-edged Skipper (Polites themistocles)
Crossline Skipper (Polites origenes)
Long Dash (Polites mystic)
Sonora Skipper (Polites sonora)
Sachem (Atalopedes campestris)
Arogos Skipper (Atrytone arogos)
Delaware Skipper (Anatrytone logan)
Woodland Skipper (Ochlodes sylvanoides)
Yuma Skipper (Ochlodes yuma)
Snow's Skipper (Paratrytone snowi)
Hobomok Skipper (Poanes hobomok)
Taxiles Skipper (Poanes taxiles)
Two-spotted Skipper (Euphyes bimacula)
Dun Skipper (Euphyes vestris)
Dusted Skipper (Atrytonopsis hianna)
Viereck's Skipper (Atrytonopsis vierecki)
Simius Roadside-Skipper ("Amblyscirtes" simius)
Bronze Roadside-Skipper (Amblyscirtes aenus)
Oslar's Roadside-Skipper (Amblyscirtes oslari)
Nysa Roadside-Skipper (Amblyscirtes nysa)
Dotted Roadside-Skipper (Amblyscirtes eos)
Common Roadside-Skipper (Amblyscirtes vialis)
Orange-headed Roadside-Skipper (Amblyscirtes phylace)
Eufala Skipper (Lerodea eufala)
Yucca Giant-Skipper (Megathymus yuccae)
Strecker's Giant-Skipper (Megathymus streckeri)
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