| Aglais milberti | Milbert's Tortoiseshell | X | X | | | | | | | | |
| Amblyscirtes vialis | Common Roadside-Skipper | X | X | | | | | | | | |
| Anthocharis stella | Stella Orangetip | X | X | | | | | | | | |
| Apodemia mormo | Mormon Metalmark | X | X | | | | | | | | |
| Boloria epithore | Pacific Fritillary | X | X | | | | | | | | |
| Callophrys affinis | Western Green Hairstreak | X | X | | | | | | | | |
| Callophrys augustinus | Brown Elfin | X | X | | | | | | | | |
| Callophrys eryphon | Western Pine Elfin | X | X | | | | | | | | |
| Callophrys gryneus | Juniper Hairstreak | X | X | | | | | | | | |
| Callophrys mossii | Moss' Elfin | X | X | | | | | | | | |
| Callophrys nelsoni | Nelson's Hairstreak | X | X | | | | | | | | |
| Callophrys sheridanii | Sheridan's Green Hairstreak | X | X | | | | | | | | |
| Cercyonis oetus | Small Wood-Nymph | X | X | | | | | | | | |
| Cercyonis pegala | Common Wood-Nymph | X | X | | | | | | | | |
| Chlosyne palla | Northern Checkerspot | X | X | | | | | | | | |
| Coenonympha tullia | | X | X | | | | | | | | |
| Coenonympha tullia | Common Ringlet | X | X | | | | | | | | |
| Colias eurytheme | Orange Sulphur | X | X | | | | | | | | |
| Colias philodice | Clouded Sulphur | X | X | | | | | | | | |
| Cupido amyntula | Western Tailed-Blue | X | X | | | | | | | | |
| Danaus plexippus | Monarch | X | X | | | | | | | | |
| Epargyreus clarus | Silver-spotted Skipper | X | X | | | | | | | | |
| Erynnis icelus | Dreamy Duskywing | X | X | | | | | | | | |
| Euchloe ausonides | Large Marble | X | X | | | | | | | | |
| Euphilotes battoides | Western Square-dotted Blue | X | X | | | | | | | | |
| Euphydryas chalcedona | Chalcedon Checkerspot | X | X | | | | | | | | |
| Glaucopsyche lygdamus | Silvery Blue | X | X | | | | | | | | |
| Glaucopsyche piasus | Arrowhead Blue | X | X | | | | | | | | |
| Heliopetes ericetorum | Northern White-Skipper | X | X | | | | | | | | |
| Hesperia colorado | Western Branded Skipper | X | X | | | | | | | | |
| Hesperia juba | Juba Skipper | X | X | | | | | | | | |
| Limenitis lorquini | Lorquin's Admiral | X | X | | | | | | | | |
| Lycaena helloides | Purplish Copper | X | X | | | | | | | | |
| Neophasia menapia | Pine White | X | X | | | | | | | | |
| Nymphalis antiopa | Mourning Cloak | X | X | | | | | | | | |
| Nymphalis californica | California Tortoiseshell | X | X | | | | | | | | |
| Oarisma garita | Garita Skipperling | X | X | | | | | | | | |
| Ochlodes sylvanoides | Woodland Skipper | X | X | | | | | | | | |
| Papilio eurymedon | Pale Swallowtail | X | X | | | | | | | | |
| Papilio indra | Indra Swallowtail | X | X | | | | | | | | |
| Papilio machaon | Old World Swallowtail | X | X | | | | | | | | |
| Papilio multicaudata | Two-tailed Swallowtail | X | X | | | | | | | | |
| Papilio rutulus | Western Tiger Swallowtail | X | X | | | | | | | | |
| Papilio zelicaon | Anise Swallowtail | X | X | | | | | | | | |
| Parnassius clodius | Clodius Parnassian | X | X | | | | | | | | |
| Pholisora catullus | Common Sootywing | X | X | | | | | | | | |
| Phyciodes cocyta | Northern Crescent | X | X | | | | | | | | |
| Phyciodes mylitta | Mylitta Crescent | X | X | | | | | | | | |
| Phyciodes pulchella | Field Crescent | X | X | | | | | | | | |
| Pieris marginalis | Margined White | X | X | | | | | | | | |
| Pieris rapae | Cabbage White | X | X | | | | | | | | |
| Plebejus icarioides | Boisduval's Blue | X | X | | | | | | | | |
| Plebejus lupini | Lupine Blue | X | X | | | | | | | | |
| Plebejus melissa | Melissa Blue (includes Karner Blue) | X | X | | | | | | | | |
| Polygonia faunus | Green Comma | X | X | | | | | | | | |
| Polygonia gracilis | Hoary Comma | X | X | | | | | | | | |
| Polygonia satyrus | Satyr Comma | X | X | | | | | | | | |
| Pontia beckerii | Becker's White | X | X | | | | | | | | |
| Pontia occidentalis | Western White | X | X | | | | | | | | |
| Pontia protodice | Checkered White | X | X | | | | | | | | |
| Pyrgus communis | Common Checkered-Skipper | X | X | | | | | | | | |
| Pyrgus ruralis | Two-banded Checkered-Skipper | X | X | | | | | | | | |
| Satyrium californica | California Hairstreak | X | X | | | | | | | | |
| Satyrium saepium | Hedgerow Hairstreak | X | X | | | | | | | | |
| Satyrium sylvinus | Sylvan Hairstreak | X | X | | | | | | | | |
| Speyeria callippe | Callippe Fritillary | X | X | | | | | | | | |
| Speyeria cybele | Great Spangled Fritillary | X | X | | | | | | | | |
| Speyeria zerene | Zerene Fritillary | X | X | | | | | | | | |
| Strymon melinus | Gray Hairstreak | X | X | | | | | | | | |
| Vanessa annabella | West Coast Lady | X | X | | | | | | | | |
| Vanessa atalanta | Red Admiral | X | X | | | | | | | | |
| Vanessa cardui | Painted Lady | X | X | | | | | | | | |
| Vanessa virginiensis | American Lady | X | X | | | | | | | | |
| Boloria selene | Silver-bordered Fritillary | X | | | | | | | | | |
| Callophrys polios | Hoary Elfin | X | | | | | | | | | |
| Callophrys spinetorum | Thicket Hairstreak | X | | | | | | | | | |
| Carterocephalus palaemon | Arctic Skipper | X | | | | | | | | | |
| Celastrina ladon | Spring Azure | X | | | | | | | | | |
| Colias gigantea | Giant Sulphur | X | | | | | | | | | |
| Colias interior | Pink-edged Sulphur | X | | | | | | | | | |
| Colias occidentalis | Western Sulphur | X | | | | | | | | | |
| Cupido comyntas | Eastern Tailed-Blue | X | | | | | | | | | |
| Erebia epipsodea | Common Alpine | X | | | | | | | | | |
| Erynnis pacuvius | Pacuvius Duskywing | X | | | | | | | | | |
| Erynnis persius | Persius Duskywing | X | | | | | | | | | |
| Euphydryas editha | Edith's Checkerspot | X | | | | | | | | | |
| Lycaena editha | Edith's Copper | X | | | | | | | | | |
| Lycaena mariposa | Mariposa Copper | X | | | | | | | | | |
| Lycaena rubidus | Ruddy Copper | X | | | | | | | | | |
| Nymphalis vaualbum | Compton Tortoiseshell | X | | | | | | | | | |
| Papilio canadensis | Canadian Tiger Swallowtail | X | | | | | | | | | |
| Papilio glaucus | Eastern Tiger Swallowtail | X | | | | | | | | | |
| Parnassius smintheus | Rocky Mountain Parnassian | X | | | | | | | | | |
| Plebejus saepiolus | Greenish Blue | X | | | | | | | | | |
| Polites mystic | Long Dash | X | | | | | | | | | |
| Polites peckius | Peck's Skipper | X | | | | | | | | | |
| Polygonia progne | Gray Comma | X | | | | | | | | | |
| Speyeria coronis | Coronis Fritillary | X | | | | | | | | | |
| Speyeria egleis | Great Basin Fritillary | X | | | | | | | | | |
| Speyeria hydaspe | Hydaspe Fritillary | X | | | | | | | | | |
| Speyeria mormonia | Mormon Fritillary | X | | | | | | | | | |
| | #NAME? | #NAME? | | | | | | | | |
| | | | | | | | | | | |
| Atalopedes campestris | Sachem | | X | | | | | | | | |
| Boloria bellona | Meadow Fritillary | | X | | | | | | | | |
| Callophrys barryi | Barry's Hairstreak | | X | | | | | | | | |
| Celastrina echo | Echo Azure | | X | | | | | | | | |
| Cercyonis sthenele | Great Basin Wood-Nymph | | X | | | | | | | | |
| Chlosyne acastus | Sagebrush Checkerspot | | X | | | | | | | | |
| Colias alexandra | Queen Alexandra's Sulphur | | X | | | | | | | | |
| Euchloe lotta | Desert Marble | | X | | | | | | | | |
| Euphilotes ancilla | Rocky Mountain Dotted-Blue | | X | | | | | | | | |
| Limenitis archippus | Viceroy | | X | | | | | | | | |
| Lycaena heteronea | Blue Copper | | X | | | | | | | | |
| Phyciodes pallida | Pale Crescent | | X | | | | | | | | |
| Polites sabuleti | Sandhill Skipper | | X | | | | | | | | |
| Polites sonora | Sonora Skipper | | X | | | | | | | | |
| Polygonia oreas | Oreas Comma | | X | | | | | | | | |
| Pontia sisymbrii | Spring White | | X | | | | | | | | |
| Satyrium titus | Coral Hairstreak | | X | | | | | | | | |
| Adelpha californica | California Sister | | | | | | | | | | |
| Adelpha eulalia | Arizona Sister | | | | | | | | | | |
| Anthocharis sara | Pacific Orangetip | | | | | | | | | | |
| Boloria astarte | Astarte Fritillary | | | | | | | | | | |
| Boloria chariclea | Arctic Fritillary | | | | | | | | | | |
| Boloria freija | Freija Fritillary | | | | | | | | | | |
| Boloria frigga | Frigga Fritillary | | | | | | | | | | |
| Boloria kriemhild | Relict Fritillary | | | | | | | | | | |
| Brephidium exilis | Western Pygmy-Blue | | | | | | | | | | |
| Callophrys johnsoni | Johnson's Hairstreak | | | | | | | | | | |
| Celastrina lucia | Northern Azure | | | | | | | | | | |
| Chlosyne gorgone | Gorgone Checkerspot | | | | | | | | | | |
| Chlosyne hoffmanni | Hoffmann's Checkerspot | | | | | | | | | | |
| Chlosyne leanira | Leanira Checkerspot | | | | | | | | | | |
| Clossiana epithore | Western Meadow Fritillary | | | | | | | | | | |
| Coenonympha haydenii | Hayden's Ringlet | | | | | | | | | | |
| Colias christina | Christina Sulphur | | | | | | | | | | |
| Colias meadii | Mead's Sulphur | | | | | | | | | | |
| Colias nastes | Labrador Sulphur | | | | | | | | | | |
| Colias pelidne | Pelidne Sulphur | | | | | | | | | | |
| Danaus gilippus | Queen | | | | | | | | | | |
| Echinargus isola | Reakirt's Blue | | | | | | | | | | |
| Erebia vidleri | Vidler's Alpine | | | | | | | | | | |
| Erynnis afranius | Afranius Duskywing | | | | | | | | | | |
| Erynnis propertius | Propertius Duskywing | | | | | | | | | | |
| Euphilotes enoptes | Pacific Dotted-Blue | | | | | | | | | | |
| Euphilotes glaucon | | | | | | | | | | | |
| Euphydryas anicia | Anicia Checkerspot | | | | | | | | | | |
| Euphydryas colon | Colon Checkerspot | | | | | | | | | | |
| Euphydryas gillettii | Gillette's Checkerspot | | | | | | | | | | |
| Euphyes vestris | Dun Skipper | | | | | | | | | | |
| Euptoieta claudia | Variegated Fritillary | | | | | | | | | | |
| Euptoieta hegesia | Mexican Fritillary | | | | | | | | | | |
| Everes amyntula | Western Tailed Blue | | | | | | | | | | |
| Everes comyntas | Eastern Tailed Blue | | | | | | | | | | |
| Habrodais grunus | Golden Hairstreak | | | | | | | | | | |
| Hesperia nevada | Nevada Skipper | | | | | | | | | | |
| Hesperopsis libya | Mohave Sootywing | | | | | | | | | | |
| Icaricia acmon | acmon blue | | | | | | | | | | |
| Icaricia icarioides ssp. pem | Boisduval's blue | | | | | | | | | | |
| Incisalia eryphon | western pine elfin | | | | | | | | | | |
| Incisalia iriodes | western or brown elfin | | | | | | | | | | |
| Incisalia polia | hoary elfin | | | | | | | | | | |
| Junonia coenia | Common Buckeye | | | | | | | | | | |
| Leptotes marina | Marine Blue | | | | | | | | | | |
| Limenitis weidemeyerii | Weidemeyer's Admiral | | | | | | | | | | |
| Lycaena arota | Tailed Copper | | | | | | | | | | |
| Lycaena cupreus | Lustrous Copper | | | | | | | | | | |
| Lycaena dione | Gray Copper | | | | | | | | | | |
| Lycaena hyllus | Bronze Copper | | | | | | | | | | |
| Lycaena nivalis | Lilac-bordered Copper | | | | | | | | | | |
| Lycaena phlaeas | American Copper | | | | | | | | | | |
| Nathalis iole | Dainty Sulphur | | | | | | | | | | |
| Neominois ridingsii | Ridings' Satyr | | | | | | | | | | |
| Nymphalidae | Brushfooted Butterflies | | | | | | | | | | |
| Ochlodes yuma | Yuma Skipper | | | | | | | | | | |
| Oeneis chryxus | Chryxus Arctic | | | | | | | | | | |
| Oeneis jutta | Jutta Arctic | | | | | | | | | | |
| Oeneis melissa | Melissa Arctic | | | | | | | | | | |
| Oeneis nevadensis | Great Arctic | | | | | | | | | | |
| Papilo indra | Indra Swallowtail | | | | | | | | | | |
| Phyciodes tharos ssp. pascoe | pearl crescent | | | | | | | | | | |
| Piruna pirus | and Swallowtails | | | | | | | | | | |
| Plebejus acmon | Acmon Blue | | | | | | | | | | |
| Plebejus anna | Anna's Blue | | | | | | | | | | |
| Plebejus glandon | Arctic Blue | | | | | | | | | | |
| Plebejus idas | Northern Blue | | | | | | | | | | |
| Plebejus shasta | Shasta Blue | | | | | | | | | | |
| Poanes taxiles | Taxiles Skipper | | | | | | | | | | |
| Polites draco | Draco Skipper | | | | | | | | | | |
| Polites mardon | Mardon Skipper | | | | | | | | | | |
| Polites themistocles | Tawny-edged Skipper | | | | | | | | | | |
| Polygonia zephyrus | Zephyr Comma | | | | | | | | | | |
| Pyrgus centaureae | Grizzled Skipper | | | | | | | | | | |
| Satyrium acadica | Acadian Hairstreak | | | | | | | | | | |
| Satyrium behrii | Behr's Hairstreak | | | | | | | | | | |
| Satyrium fuliginosum | Sooty Hairstreak | | | | | | | | | | |
| Satyrium semiluna | Sagebrush Sooty Hairstreak | | | | | | | | | | |
| Speyeria aphrodite | Aphrodite Fritillary | | | | | | | | | | |
| Speyeria atlantis | Atlantis Fritillary | | | | | | | | | | |
| Speyeria cybele ssp. leto | Zerene Fritillary | | | | | | | | | | |
| Speyeria edwardsii | Edwards' Fritillary | | | | | | | | | | |
| Speyeria hesperis | Northwestern Fritillary | | | | | | | | | | |
| Speyeria zerene ssp. Garretti | Hydaspe Fritillary | | | | | | | | | | |
| Thorybes mexicana | Mexican Cloudywing | | | | | | | | | | |
| Thorybes pylades | Northern Cloudywing | | | | | | | | | | |
| Thymelicus lineola | European Skipper | | | | | | | | | | |
