Denotes entries with color photo(s)
Denotes entries containing textual species accounts

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Families

• Swallowtails (Family Papilionidae)
• Whites and Sulphurs (Family Pieridae)
• Gossamer-wing Butterflies (Family Lycaenidae)
• Metalmarks (Family Riodinidae)
• Brush-footed Butterflies (Family Nymphalidae)
• Skippers (Family Hesperiidae)

Swallowtails (Family Papilionidae)

Parnassians (Subfamily Parnassiinae)

Clodius Parnassian (Parnassius clodius)

Rocky Mountain Parnassian (Parnassius smintheus)

Sierra Nevada Parnassian (Parnassius behrii)

Swallowtails (Subfamily Papilioninae)

Pipevine Swallowtail (Battus philenor)

Polydamas Swallowtail (Battus polydamas)

Black Swallowtail (Papilio polyxenes)

Old World Swallowtail (Papilio machaon)

Anise Swallowtail (Papilio zelicaon)

Indra Swallowtail (Papilio indra)

Giant Swallowtail (Papilio cresphontes)

Western Tiger Swallowtail (Papilio rutulus)

Two-tailed Swallowtail (Papilio multicaudata)

Pale Swallowtail (Papilio eurymedon)

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Whites and Sulphurs (Family Pieridae)

Whites (Subfamily Pierinae)

Pine White (Neophasia menapia)

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)

Large Marble (Euchloe ausonides)

Desert Marble (Euchloe lotta)

California Marble (Euchloe hyantis)

Desert Orangetip (Anthocharis cethura)

Pacific Orangetip (Anthocharis sara)

Stella Orangetip (Anthocharis stella)

Southwestern Orangetip (Anthocharis thoosa)

Gray Marble (Anthocharis lanceolata)

Sulphurs (Subfamily Coliadinae)

Clouded Sulphur (Colias philodice)

Orange Sulphur (Colias eurytheme)

Western Sulphur (Colias occidentalis)

Queen Alexandra's Sulphur (Colias alexandra)

Harford's Sulphur (Colias harfordii)

Sierra Sulphur (Colias behrii)

California Dogface (Zerene eurydice)

Southern Dogface (Zerene cesonia)

Cloudless Sulphur (Phoebis sennae)

Orange-barred Sulphur (Phoebis philea)

Large Orange Sulphur (Phoebis agarithe)

Lyside Sulphur (Kricogonia lyside)

Boisduval's Yellow (Eurema boisduvaliana)

Mexican Yellow (Eurema mexicana)

Little Yellow (Eurema lisa)

Mimosa Yellow (Eurema nise)

Sleepy Orange (Eurema nicippe)

Dainty Sulphur (Nathalis iole)

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Gossamer-wing Butterflies (Family Lycaenidae)

Coppers (Subfamily Lycaeninae)

Tailed Copper (Lycaena arota)

American Copper (Lycaena phlaeas)

Lustrous Copper (Lycaena cupreus)

Great Copper (Lycaena xanthoides)

Edith's Copper (Lycaena editha)

Gorgon Copper (Lycaena gorgon)

Ruddy Copper (Lycaena rubidus)

Blue Copper (Lycaena heteronea)

Purplish Copper (Lycaena helloides)

Lilac-bordered Copper (Lycaena nivalis)

Mariposa Copper (Lycaena mariposa)

Hermes Copper (Lycaena hermes)

Hairstreaks (Subfamily Theclinae)

Golden Hairstreak (Habrodais grunus)

Great Purple Hairstreak (Atlides halesus)

Silver-banded Hairstreak (Chlorostrymon simaethis)

Coral Hairstreak (Satyrium titus)

Behr's Hairstreak (Satyrium behrii)

Sooty Hairstreak (Satyrium fuliginosum)

California Hairstreak (Satyrium californica)

Sylvan Hairstreak (Satyrium sylvinus)

Gold-hunter's Hairstreak (Satyrium auretorum)

Mountain Mahogany Hairstreak (Satyrium tetra)

Hedgerow Hairstreak (Satyrium saepium)

Coastal Green Hairstreak (Callophrys dumetorum)

Western Green Hairstreak (Callophrys affinis)

Sheridan's Green Hairstreak (Callophrys sheridani)

Desert Green Hairstreak (Callophrys comstocki)

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)

Johnson's Hairstreak (Callophrys johnsoni)

Juniper Hairstreak (Callophrys gryneus)

Nelson's Hairstreak (Callophrys nelsoni)

Muir's Hairstreak (Callophrys muiri)

Gray Hairstreak (Strymon melinus)

Avalon Scrub-Hairstreak (Strymon avalona)

Mallow Scrub-Hairstreak (Strymon istapa)

Leda Ministreak (Ministrymon leda)

Arizona Hairstreak (Erora quaderna)

Blues (Subfamily Polyommatinae)

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")

Sonoran Blue (Philotes sonorensis)

Western Square-dotted Blue (Euphilotes battoides)

Bernardino Dotted-Blue (Euphilotes bernardino)

Ellis' Dotted-Blue (Euphilotes ellisi)

Bauer's Dotted-Blue (Euphilotes baueri)

Intermediate Dotted-Blue (Euphilotes intermedia)

Pacific Dotted-Blue (Euphilotes enoptes)

Mojave Dotted-Blue (Euphilotes mojave)

Rocky Mountain Dotted-Blue (Euphilotes ancilla)

Pallid Dotted-Blue (Euphilotes pallescens)

Small Dotted-Blue (Philotiella speciosa)

Arrowhead Blue (Glaucopsyche piasus)

Silvery Blue (Glaucopsyche lygdamus)

Northern Blue (Lycaeides idas)

Melissa Blue (Lycaeides melissa)

Greenish Blue (Plebeius saepiolus)

San Emigdio Blue (Plebeius emigdionis)

Boisduval's Blue (Plebeius icarioides)

Shasta Blue (Plebeius shasta)

Acmon Blue (Plebeius acmon)

Lupine Blue (Plebeius lupini)

Veined Blue (Plebeius neurona)

Sierra Nevada Blue (Agriades podarce)

Cassiope Blue (Agriades cassiope)

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Metalmarks (Family Riodinidae)

Fatal Metalmark (Calephelis nemesis)

Wright's Metalmark (Calephelis wrighti)

Ares Metalmark (Emesis ares)

Mormon Metalmark (Apodemia mormo)

Behr's Metalmark (Apodemia virgulti)

Sonoran Metalmark (Apodemia mejicanus)

Palmer's Metalmark (Apodemia palmeri)

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Brush-footed Butterflies (Family Nymphalidae)

Snouts (Subfamily Libytheinae)

American Snout (Libytheana carinenta)

Heliconians and Fritillaries (Subfamily Heliconiinae)

Gulf Fritillary (Agraulis vanillae)

Zebra (Heliconius charithonius)

Variegated Fritillary (Euptoieta claudia)

Mexican Fritillary (Euptoieta hegesia)

Great Spangled Fritillary (Speyeria cybele)

Nokomis Fritillary (Speyeria nokomis)

Coronis Fritillary (Speyeria coronis)

Zerene Fritillary (Speyeria zerene)

Callippe Fritillary (Speyeria callippe)

Great Basin Fritillary (Speyeria egleis)

Unsilvered Fritillary (Speyeria adiaste)

Northwestern Fritillary (Speyeria hesperis)

Hydaspe Fritillary (Speyeria hydaspe)

Mormon Fritillary (Speyeria mormonia)

Pacific Fritillary (Boloria epithore)

True Brush-foots (Subfamily Nymphalinae)

Dotted Checkerspot (Poladryas minuta)

Leanira Checkerspot (Thessalia leanira)

California Patch (Chlosyne californica)

Bordered Patch (Chlosyne lacinia)

Northern Checkerspot (Chlosyne palla)

Rockslide Checkerspot (Chlosyne whitneyi)

Sagebrush Checkerspot (Chlosyne acastus)

Gabb's Checkerspot (Chlosyne gabbii)

Hoffmann's Checkerspot (Chlosyne hoffmanni)

Tiny Checkerspot (Dymasia dymas)

Texan Crescent (Phyciodes texana)

Phaon Crescent (Phyciodes phaon)

Pearl Crescent (Phyciodes tharos)

Northern Crescent (Phyciodes cocyta)

Field Crescent (Phyciodes pratensis)

California Crescent (Phyciodes orseis)

Mylitta Crescent (Phyciodes mylitta)

Variable Checkerspot (Euphydryas chalcedona)

Edith's Checkerspot (Euphydryas editha)

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)

Admirals and Relatives (Subfamily Limenitidinae)

Viceroy (Limenitis archippus)

Weidemeyer's Admiral (Limenitis weidemeyerii)

Lorquin's Admiral (Limenitis lorquini)

California Sister (Adelpha bredowii)

Blackened Bluewing (Myscelia cyananthe)

Emperors (Subfamily Apaturinae)

Hackberry Emperor (Asterocampa celtis)

Satyrs (Subfamily Satyrinae)

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)

Ridings' Satyr (Neominois ridingsii)

Great Arctic (Oeneis nevadensis)

Chryxus Arctic (Oeneis chryxus)

Monarchs (Subfamily Danainae)

Monarch (Danaus plexippus)

Queen (Danaus gilippus)

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Skippers (Family Hesperiidae)

Spread-wing Skippers (Subfamily Pyrginae)

Silver-spotted Skipper (Epargyreus clarus)

Broken Silverdrop (Epargyreus exadeus)

Hammock Skipper (Polygonus leo)

Long-tailed Skipper (Urbanus proteus)

Dorantes Longtail (Urbanus dorantes)

Plain Longtail (Urbanus simplicius)

Northern Cloudywing (Thorybes pylades)

Western Cloudywing (Thorybes diversus)

Mexican Cloudywing (Thorybes mexicana)

Golden-headed Scallopwing (Staphylus ceos)

Arizona Powdered Skipper (Systasea zampa)

Dreamy Duskywing (Erynnis icelus)

Sleepy Duskywing (Erynnis brizo)

Propertius Duskywing (Erynnis propertius)

Mournful Duskywing (Erynnis tristis)

Pacuvius Duskywing (Erynnis pacuvius)

Funereal Duskywing (Erynnis funeralis)

Afranius Duskywing (Erynnis afranius)

Persius Duskywing (Erynnis persius)

Two-banded Checkered-Skipper (Pyrgus ruralis)

Small Checkered-Skipper (Pyrgus scriptura)

Common Checkered-Skipper (Pyrgus communis)

White Checkered-Skipper (Pyrgus albescens)

Erichson's White-Skipper (Heliopetes domicella)

Northern White-Skipper (Heliopetes ericetorum)

Common Streaky-Skipper (Celotes nessus)

Common Sootywing (Pholisora catullus)

Mohave Sootywing (Hesperopsis libya)

Saltbush Sootywing (Hesperopsis alpheus)

MacNeill's Sootywing (Hesperopsis gracielae)

Grass Skippers (Subfamily Hesperiinae)

Arctic Skipper (Carterocephalus palaemon)

Julia's Skipper (Nastra julia)

Orange Skipperling (Copaeodes aurantiacia)

Fiery Skipper (Hylephila phyleus)

Alkali Skipper (Pseudocopaeodes eunus)

Uncas Skipper (Hesperia uncas)

Juba Skipper (Hesperia juba)

Western Branded Skipper (Hesperia colorado)

Pahaska Skipper (Hesperia pahaska)

Columbian Skipper (Hesperia columbia)

Lindsey's Skipper (Hesperia lindseyi)

Sierra Skipper (Hesperia miriamae)

Nevada Skipper (Hesperia nevada)

Carus Skipper (Polites carus)

Sandhill Skipper (Polites sabuleti)

Mardon Skipper (Polites mardon)

Tawny-edged Skipper (Polites themistocles)

Sonora Skipper (Polites sonora)

Sachem (Atalopedes campestris)

Rural Skipper (Ochlodes agricola)

Woodland Skipper (Ochlodes sylvanoides)

Yuma Skipper (Ochlodes yuma)

Umber Skipper (Poanes melane)

Dun Skipper (Euphyes vestris)

Common Roadside-Skipper (Amblyscirtes vialis)

Eufala Skipper (Lerodea eufala)

Brazilian Skipper (Calpodes ethlius)

Wandering Skipper (Panoquina errans)

Violet-banded Skipper (Nyctelius nyctelius)

Giant-Skippers (Subfamily Megathyminae)

Arizona Giant-Skipper (Agathymus aryxna)

Gentry's Giant-Skipper (Agathymus gentryi)

California Giant-Skipper (Agathymus stephensi)

Mojave Giant-Skipper (Agathymus alliae)

Yucca Giant-Skipper (Megathymus yuccae)

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