| Adelpha californica (Butler, 1865) | ⇒ Adelpha bredowii Geyer, 1837 |
| Aglais milberti Godart, 1819 | Fire-rim Tortoiseshell |
| Agriades glandon Prunner, 1798 | 'Glandon' Arctic Blue |
| Agriades optilete Knoch, 1781 | Cranberry Blue |
| Anthocharis (Anthocharis) sara Lucas, 1852 | 'Pacific' Sara Orangetip |
| Apodemia mormo C. Felder & ..., 1859 | Antioch Metalmark |
| Atlides halesus Cramer, 1779 | Giant purple hairstreak |
| Boloria (Boloria) alaskensis Holland, 1900 | Alaskan Fritillary |
| Boloria (Boloria) eunomia Esper, 1799 | Bog Fritillary |
| Boloria (Clossiana) astarte Doubleday, 1847 | 'Distinct' Astarte Fritillary |
| Boloria (Clossiana) bellona Fabricius, 1775 | Meadow Fritillary |
| Boloria (Clossiana) chariclea Schneider, 1794 | Arctic Fritillary |
| Boloria (Clossiana) epithore Edwards, 1864 | Pacific Fritillary |
| Boloria (Clossiana) freija Thunberg, 1791 | Freija Fritillary |
| Boloria (Clossiana) frigga Thunberg, 1791 | Frigga Fritillary |
| Boloria (Clossiana) improba Butler, 1877 | 'Uncompahgre' Dingy Fritillary |
| Boloria (Clossiana) kriemhild Butler, 1877 | Middlerockies bolorian |
| Boloria (Clossiana) natazhati Gibson, 1920 | Beringian Fritillary |
| Boloria (Clossiana) polaris Boisduval, 1828 | Polar Fritillary |
| Boloria (Clossiana) selene Denis & Schi..., 1775 | Astro Fritillary |
| Brephidium exilis Boisduval, 1852 | Fea Pygmyblue |
| Callerebia mani de Nicéville, 1880 | |
| Callophrys (Callophrys) affinis (Edwards, 1862) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys (Callophrys) dumetorum Boisduval, 1852 | 'Bramble' Bramble Hairstreak |
| Callophrys (Callophrys) sheridanii Carpenter, 1877 | 'Alpine' Sheridan's Hairstreak |
| Callophrys (Cisincisalia) johnsoni (Skinner, 1904) | ⇒ Callophrys johnsoni Skinner, 1904 |
| Callophrys (Cisincisalia) spinetorum Hewitson, 1867 | Blue Mistletoe Hairstreak |
| Callophrys (Incisalia) augustinus Westwood, 1852 | Brown Elfin |
| Callophrys (Incisalia) eryphon Boisduval, 1852 | Western Pine Elfin |
| Callophrys (Incisalia) mossii H. Edwards, 1881 | Doudoroff Elfin |
| Callophrys (Incisalia) niphon Hübner, 1823 | Eastern Pine Elfin |
| Callophrys (Incisalia) polios (Cook & Watson, 1907) | ⇒ Callophrys polia Cook & Watson, 1907 |
| Callophrys (Mitoura) gryneus Hübner, 1819 | 'Loki' Juniper Hairstreak |
| Celastrina echo (Edwards, 1864) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina ladon (Cramer, 1780) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina lucia (Kirby, 1837) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina serotina Pavulaan & W..., 2005 | Cherry Gall Azure |
| Cercyonis oetus Boisduval, 1869 | Charon Woodnymph |
| Cercyonis pegala Fabricius, 1775 | Blue-eyed Grayling |
| Cercyonis sthenele Boisduval, 1852 | Great Basin Wood Nymph |
| Chlosyne acastus Edwards, 1874 | Acastus Checkerspot |
| Chlosyne damoetas (Boisduval, 1852) | ⇒ Chlosyne rosita Hall, 1924 |
| Chlosyne hoffmanni Behr, 1863 | Aster Checkerspot |
| Chlosyne leanira (C. & R. Felder, 1860) | ⇒ Thessalia leanira Felder, 1860 |
| Chlosyne palla Boisduval, 1852 | Calydon Checkerspot |
| Chlosyne whitneyi (Behr, 1863) | ⇒ Chlosyne palla Boisduval, 1852 |
| Coenonympha haydenii W.H. Edwards, 1872 | Hayden's ringlet |
| Coenonympha tullia Müller, 1764 | 'California' Common Ringlet |
| Colias alexandra W.H. Edwards, 1863 | 'Harford's' Queen Alexandra's Sulphur |
| Colias canadensis Ferris, 1982 | Canada Sulphur |
| Colias christina W. Edwards, 1863 | Christina Sulphur |
| Colias electo Linnaeus, 1763 | African Clouded Yellow |
| Colias eurytheme Boisduval, 1852 | Alfalfa Butterfly |
| Colias gigantea Strecker, 1900 | Giant Northern Sulfur |
| Colias hecla Lefèbvre, 1836 | Arctic Orange |
| Colias interior Scudder, 1819 | Pelidne Sulphur |
| Colias meadii W. Edwards, 1871 | Alpine Orange |
| Colias nastes (Boisduval, 1832) | ⇒ Colias tyche Böber, 1812 |
| Colias occidentalis Scudder, 1862 | Christina´s Sulphur |
| Colias pelidne Boisduval & ..., 1830 | Blueberry Sulfur |
| Colias philodice Godart, 1819 | Cloud Sulphur |
| Colias tyche Böber, 1812 | Arctic Green Sulfur |
| Cupido (Everes) amyntula Boisduval, 1852 | Western tailed blue |
| Cupido (Everes) comyntas Godart, 1824 | Eastern Tail-blue |
| Danaus (Anosia) gilippus Cramer, 1775 | Berenice Butterfly |
| Erebia disa Thunberg, 1791 | Arctic Ringlet |
| Erebia discoidalis Kirby, 1837 | Red-Disk Alpine |
| Erebia epipsodea Butler, 1868 | Common Alpine |
| Erebia lafontainei Troubridge a..., 1983 | Lafontaines alpine |
| Erebia mackinleyensis Gunder, 1932 | Mt McKinley alpine |
| Erebia magdalena (Strecker, 1880) | ⇒ Erebia aethiops Esper, 1777 |
| Erebia mancinus (Doubleday, 1849) | ⇒ Erebia disa Thunberg, 1791 |
| Erebia occulta Roos & Kimmich, 1983 | Eskimo Alpine |
| Erebia pawloskii Ménétriés, 1859 | Theano Alpine |
| Erebia rossii Curtis, 1834 | Arctic Alpine |
| Erebia vidleri Elwes, 1898 | Northwest Alpine |
| Erebia youngi Holland, 1900 | Four-dotted Alpine |
| Euchloe (Euchloe) ausonides Lucas, 1852 | Creamy Marblewing |
| Euchloe (Euchloe) crameri Butler, 1869 | Dappled White |
| Euchloe (Euchloe) creusa Doubleday, 1847 | California Marble |
| Euchloe lotta (Beutenmüller, 1898) | ⇒ Euchloe hyantis W. Edwards, 1871 |
| Euphilotes ancilla (Barnes & McD..., 1918) | ⇒ Euphilotes enoptes Boisduval, 1852 |
| Euphilotes battoides Behr, 1867 | 'Bernardino' Square-spotted Blue |
| Euphilotes columbiae (Mattoni, 1954) | ⇒ Euphilotes enoptes Boisduval, 1852 |
| Euphilotes enoptes Boisduval, 1852 | 'Dammer's ' Dotted Blue |
| Euphilotes glaucon (Behr, 1867) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphydryas anicia Doubleday, 1847 | Anicia Checkerspot |
| Euphydryas chalcedona Doubleday, 1847 | 'Anicia' Variable Checkerspot |
| Euphydryas colon (Edwards, 1881) | ⇒ Euphydryas chalcedon Doubleday & ..., 1847 |
| Euphydryas editha Boisduval, 1852 | Bay checkerspot Butterfly |
| Euphydryas gillettii Barnes, 1897 | Gillett's checkerspot |
| Euptoieta claudia Cramer, 1775 | Variegated Fritillary |
| Glaucopsyche lygdamus Doubleday, 1842 | Behr Blue |
| Glaucopsyche piasus Boisduval, 1852 | Arrowhead Blue |
| Habrodais grunus Boisduval, 1852 | Golden Hairstreak |
| Icaricia acmon (Westwood, 1851) | ⇒ Plebejus acmon Westwood, 1851 |
| Icaricia icarioides Boisduval, 1852 | Boisduval's blue |
| Icaricia lupini (Goodpasture, 1973) | ⇒ Aricia lupini Boisduval, 1869 |
| Icaricia saepiolus W. H. Edwards, 1863 | Greenish blue |
| Icaricia shasta (Edwards, 1862) | ⇒ Aricia shasta W.H. Edwards, 1862 |
| Junonia coenia Hübner, 1822 | Buckeye |
| Junonia cymodoce cymodoce Cramer, 1777 | |
| Junonia evarete Cramer, 1779 | Black Mangrove Buckeye |
| Leptotes marina Reakirt, 1868 | Marine Blue |
| Limenitis archippus Cramer, 1775 | Viceroy |
| Limenitis arthemis Drury, 1773 | Albo Admiral |
| Limenitis lorquini Boisduval, 1852 | Lorquin's admiral |
| Limenitis weidemeyerii W.H. Edwards, 1861 | Weidemeyer's admiral |
| Lycaena (Chalceria) dione Scudder, 1868 | Gray Copper |
| Lycaena (Chalceria) editha Mead, 1878 | Edith's copper |
| Lycaena (Chalceria) gorgon Boisduval, 1852 | Buckweat Copper |
| Lycaena (Chalceria) heteronea Boisduval, 1852 | Blue Copper |
| Lycaena (Chalceria) rubidus Behr, 1866 | 'White Mountains' Ruddy Copper |
| Lycaena (Chalceria) xanthoides Boisduval, 1852 | Gray Copper |
| Lycaena (Epidemia) dorcas Kirby, 1837 | 'Maine' Dorcas Copper |
| Lycaena (Epidemia) helloides Boisduval, 1852 | Common purplish copper |
| Lycaena (Epidemia) hyllus Cramer, 1775 | Bronze Copper |
| Lycaena (Epidemia) mariposa Reakirt, 1866 | Forest Copper |
| Lycaena (Epidemia) nivalis Boisduval, 1869 | Brown Copper |
| Lycaena (Lycaena) cupreus (W. H. Edwards, 1870) | ⇒ Lycaena cuprea W. H. Edwards, 1870 |
| Lycaena (Lycaena) phlaeas Linnaeus, 1761 | American Copper |
| Lycaena (Tharsalea) arota Boisduval, 1852 | Tail Copper Butterfly |
| Nathalis iole Boisduval, 1836 | Dainty sulfur |
| Neominois ridingsii Edwards, 1865 | Grasshopper Satyr |
| Neophasia menapia C. & R. Felder, 1859 | Pine butterfly |
| Nymphalis (Nymphalis) antiopa Linnaeus, 1758 | Camberwell Beaty |
| Nymphalis californica (Boisduval, 1852) | ⇒ Nymphalis xanthomelas Esper, 1781 |
| Nymphalis l-album Denis & Schi..., 1775 | Comma Tortoiseshell |
| Oeneis (Oeneis) alpina Kurentzov, 1970 | Eskimo arctic |
| Oeneis (Oeneis) bore Schneider, 1792 | Arctic Grayling |
| Oeneis (Oeneis) chryxus Doubleday, 1849 | 'Brown' Chryxus Arctic |
| Oeneis (Oeneis) jutta Hübner, 1806 | Baltic Grayling |
| Oeneis (Oeneis) macounii Edwards, 1885 | Canada Arctic |
| Oeneis (Oeneis) melissa Fabricius, 1775 | Melissa Arctic |
| Oeneis (Oeneis) nevadensis Felder, 1867 | Great Arctic |
| Oeneis (Oeneis) philipi (Troubridge, 1988) | ⇒ Oeneis rosovi Kurentzov, 1960 |
| Oeneis (Oeneis) polixenes Fabricius, 1775 | Banded Arctic |
| Oeneis (Protoeneis) uhleri Realkirt, 1866 | Ocellate arctic |
| Papilio (Papilio) indra Reakirt, 1866 | Cliff Swallowtail |
| Papilio (Papilio) machaon Linnaeus, 1758 | 'Baird's' Old World Swallowtail |
| Papilio (Papilio) zelicaon Lucas, 1852 | Anise Swallowtail |
| Papilio (Pterourus) canadensis (Rotschild & ..., 1906) | ⇒ Papilio glaucus Linnaeus, 1758 |
| Papilio (Pterourus) eurymedon Lucas, 1852 | Pale Swallowtail |
| Papilio (Pterourus) multicaudata Kirby, 1884 | Double Swallowtail |
| Papilio (Pterourus) rutulus Lucas, 1853 | Western swallowtail |
| Parnassius (Driopa) clodius Ménétriés, 1855 | American Apollo |
| Parnassius (Driopa) eversmanni Ménétriés, 1849 | Eversmann's parnassian |
| Parnassius phoebus Fabricius, 1793 | 'Phoebus' Phoebus Parnassian |
| Parnassius smintheus (Doubleday, 1847) | ⇒ Parnassius phoebus Fabricius, 1793 |
| Philotiella leona Hammond & Mc..., 2000 | Leona Blue |
| Phyciodes batesii Reakirt, 1865 | Dark Crescent |
| Phyciodes cocyta (Cramer, 1777) | ⇒ Phyciodes tharos Drury, 1773 |
| Phyciodes mylitta W.H. Edwards, 1861 | Mylitta Crescenspot |
| Phyciodes orseis Edwards, 1871 | California Crescent |
| Phyciodes pallida Edwards, 1864 | Pale crescent |
| Phyciodes pulchella (Boisduval, 1852) | ⇒ Phyciodes tharos Drury, 1773 |
| Phyciodes tharos Drury, 1773 | Early Pearly Crescentspot |
| Pieris (Artogeia) rapae Linnaeus, 1758 | Cabbage butterfly |
| Pieris angelika (Eitschberger, 1983) | ⇒ Pieris napi Linnaeus, 1758 |
| Pieris marginalis (Scudder, 1861) | ⇒ Pieris napi Linnaeus, 1758 |
| Pieris oleracea (Harris, T, 1829) | ⇒ Pieris napi Linnaeus, 1758 |
| Plebejus (Lycaeides) anna (Edwards, 1861) | ⇒ Plebejus idas Linnaeus, 1761 |
| Plebejus (Lycaeides) idas Linnaeus, 1761 | |
| Plebejus (Lycaeides) melissa Edwards, 1873 | Common bordered blue |
| Polygonia faunus Edwards, 1862 | 'Green' Green Comma |
| Polygonia gracilis Grote & Robi..., 1867 | 'Zephyr' Hoary Comma |
| Polygonia oreas Edwards, 1869 | Oreas Anglewing |
| Polygonia progne Cramer, 1775 | Dark-Gray Anglewing |
| Polygonia satyrus Edwards, 1869 | Golden Anglewing |
| Pontia beckerii W. Edwards, 1871 | Becker's white |
| Pontia occidentalis Reakirt, 1866 | Checkered white cabbage worm |
| Pontia protodice Boisduval & ..., 1830 | Checkered White |
| Pontia sisymbrii Boisduval, 1852 | California White |
| Satyrium (Satyrium) auretorum Boisduval, 1852 | Gold Hunter´s Hairstreak |
| Satyrium (Satyrium) behrii W.H. Edwards, 1870 | Behr's hairstreak |
| Satyrium calanus calanus Hübner, 1809 | Banded Hairstreak |
| Satyrium (Satyrium) californica Edwards, 1862 | California Hairstreak |
| Satyrium (Satyrium) fuliginosa (Edwards, 1861) | ⇒ Satyrium fuliginosum W.H. Edwards, 1861 |
| Satyrium (Satyrium) saepium Boisduval, 1852 | Buckthorn Hairstreak |
| Satyrium (Satyrium) semiluna Klots, 1930 | Half-moon Hairstreak |
| Satyrium (Satyrium) sylvinus (Boisduval, 1852) | ⇒ Satyrium sylvinum Boisduval, 1852 |
| Satyrium (Satyrium) tetra Edwards, 1870 | Chaparral Hairstreak |
| Satyrium (Satyrium) titus Fabricius, 1793 | Coral Hairstreak |
| Speyeria aphrodite (Fabricius, 1787) | ⇒ Argynnis aphrodite Fabricius, 1787 |
| Speyeria atlantis Edwards, 1862 | 'Atlantis' Atlantis Fritillary |
| Speyeria callippe Boisduval, 1852 | Calippe Fritillary |
| Speyeria coronis Behr, 1862 | Coronis Fritillary |
| Speyeria cybele Fabricius, 1775 | Great spangled fritillary |
| Speyeria edwardsii Reakirt, 1866 | Edward's fritillary |
| Speyeria egleis Behr, 1862 | Egleis Fritillary |
| Speyeria hesperis (W.H. Edwards, 1864) | ⇒ Speyeria atlantis Edwards, 1862 |
| Speyeria hydaspe Boisduval, 1869 | Hydaspe Fritillary |
| Speyeria mormonia Boisduval, 1869 | Atronia Fritillary |
| Speyeria zerene Boisduval, 1852 | 'Spring Mountains' Zerene Fritillary |
| Strymon melinus Hübner, 1818 | Common hairstreak |
| Vanessa annabella Field, 1971 | West Coast Lady |
| Vanessa atalanta Linnaeus, 1758 | Red Admiral |
| Vanessa cardui Linnaeus, 1758 | Cosmopolitan |
| Vanessa virginiensis Drury, 1773 | America Painted Lady |
