| Abagrotis apposita Grote, 1878 | |
| Abagrotis variata Grote, 1876 | |
| Acentria ephemerella Hübner, 1813 | European water moth |
| Achytonix epipaschia (Grote, 1882) | ⇒ Cosmia epipaschia Grote, 1883 |
| Acleris gloveranus (Walsingham, 1879) | ⇒ Acleris phyllosocia Razowski, 2008 |
| Acossus populi Walker, 1856 | Aspen Carpenterworm |
| Adonisea vacciniae Edwards, 1875 | |
| Aglais io Linnaeus, 1758 | European Peacock |
| Aglais milberti Godart, 1819 | Fire-rim Tortoiseshell |
| Aglais urticae Linnaeus, 1758 | Small Tortoiseshell |
| Agrotis poliochroa Hampson, 1906 | |
| Agrotis vetusta Walker, 1856 | Muted Dart |
| Albuna pyramidalis Walker, 1856 | Fireweed Clearwing |
| Alucita hexadactyla Linnaeus, 1758 | Many-plumed moth |
| Alypia ridingsii Grote, 1864 | Mountain Forester |
| Amphipyra glabella Morrison, 1874 | Grey Amphipyra |
| Andropolia aedon Grote, 1880 | |
| Antharmostes papilio papilio Prout L. B., 1912 | |
| Anthocharis (Anthocharis) sara Lucas, 1852 | 'Pacific' Sara Orangetip |
| Aphantopus hyperantus Linnaeus, 1758 | Ringlet |
| Arctia caja Linnaeus, 1758 | Garden Tiger |
| Aseptis binotata Walker, 1865 | Rusty Shoulder Knot Moth |
| Autographa gamma Linnaeus, 1758 | Beet worm |
| Boloria (Clossiana) bellona Fabricius, 1775 | Meadow Fritillary |
| Boloria (Clossiana) selene Denis & Schi..., 1775 | Astro Fritillary |
| Brachylomia rectifascia Smith, 1891 | Lizard beetles |
| Bucculatrix zophopasta Braun, 1963 | |
| Cabera pusaria Linnaeus, 1758 | Common White Wave |
| Carterocephalus palaemon Pallas, 1771 | Arctic Skipper |
| Catasticta (Catasticta) pieris pieris Hopffer, 1874 | |
| Catoptria oregonicus Grote, 1880 | Oregon Catoptria Moth |
| Celastrina ladon (Cramer, 1780) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Ceratomia undulosa Walker, 1856 | Waved Sphinx |
| Cercyonis pegala Fabricius, 1775 | Blue-eyed Grayling |
| Chrysoteuchia topiarius Zeller, 1866 | Cranberry Girdler |
| Cisseps fulvicollis Hübner, 1827 | Cape sole |
| Clepsis consimilana Hübner, 1817 | Privet Tortrix |
| Colias eurytheme Boisduval, 1852 | Alfalfa Butterfly |
| Colias interior Scudder, 1819 | Pelidne Sulphur |
| Colias philodice Godart, 1819 | Cloud Sulphur |
| Cosmia (Calymnia) elisae Lafontaine &..., 2003 | Black triggerfish |
| Cosmosatyrus leptoneuroides antarctia E.C. Reed, 1877 | |
| Crassivesica bochus (Morrison, 1874) | ⇒ Euxoa bochus Morrison, 1874 |
| Cyclophora pendulinaria Guenée, 1858 | Pearly-grey Wave |
| Cydia pomonella Linnaeus, 1758 | Codling Moth |
| Danaus (Danaus) plexippus Linnaeus, 1758 | Black Weined Brown |
| Danaus (Danaus) plexippus plexippus Linnaeus, 1758 | Migratory Monarch |
| Digrammia muscariata Guenée, 1857 | Four-toed Salamander |
| Dioryctria albovittella Hulst, 1890 | Pinyon Tip Moth |
| Drasteria edwardsii Behr, 1870 | Picasso fish |
| Drasteria howlandii Grote, 1865 | |
| Drasteria ochracea Behr, 1870 | Picasso fish |
| Egira cognata Smith, 1894 | Filefishes |
| Egira curialis Grote, 1873 | Citrus cutworm |
| Egira februalis Barnes & McD..., 1918 | Mottled Oak Woodling |
| Egira hiemalis Grote, 1874 | |
| Elkalyce comyntas Godart, 1823 | |
| Emmelina monodactyla Linnaeus, 1758 | Common Plume |
| Epargyreus clarus Cramer, 1775 | Huachuca Skipper |
| Epirrhoe alternata Müller, 1764 | Common Carpet |
| Erebia vidleri Elwes, 1898 | Northwest Alpine |
| Erinnyis cercyon (Burmeister, 1878) | ⇒ Erinnyis lassauxii Boisduval, 1859 |
| Erynnis juvenalis Fabricius, 1793 | 'Arizona' Juvenal's Duskywing |
| Erynnis persius Scudder, 1863 | Hairy Dusky Wing |
| Euphilotes battoides Behr, 1867 | 'Bernardino' Square-spotted Blue |
| Euphilotes glaucon (Behr, 1867) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphyes vestris Boisduval, 1852 | Cola Skipper |
| Eupsilia tristigmata Grote, 1877 | Brown fruitworm |
| Euptychia cymela Cramer, 1779 | |
| Eutrepsia coenonympha (Felder, 1875) | ⇒ Eutrepsia metagrapharia Walker, 1862 |
| Euxoa (Longivesica) messoria Harris, 1841 | Dark-sided Cutworm |
| Euxoa (Pleonectopoda) atomaris Smith, 1890 | |
| Euxoa (Pleonectopoda) extranea Smith, 1887 | |
| Euxoa (Pleonectopoda) trifasciata Smith, 1887 | |
| Euxoa furtivus Smith, 1890 | |
| Euxoa plagigera Morrison, 1874 | |
| Euxoa punctigera Walker, 1865 | |
| Euxoa satis Harvey, 1876 | |
| Euxoa tessellata Harris, 1841 | Striped Cutworm |
| Euxoa tronella (Smith, 1903) | ⇒ Euxoa tronellus Smith, 1903 |
| Everes amyntula (Boisduval, 1852) | ⇒ Cupido amyntula Boisduval, 1852 |
| Feniseca tarquinius Fabricius, 1793 | Harvester |
| Fishia discors Grote, 1881 | Garden cutworm |
| Glaucopsyche lygdamus Doubleday, 1842 | Behr Blue |
| Gonepteryx rhamni Linnaeus, 1758 | Brimstone |
| Grammia (Grammia) nevadensis Grote & Robi..., 1866 | Bloch's tonguesole |
| Gymnoscelis rufifasciata Haworth, 1809 | Cankerworm |
| Habrodais grunus Boisduval, 1852 | Golden Hairstreak |
| Hadenella pergentilis Grote, 1883 | |
| Hadula trifolii Hufnagel, 1766 | Clover cutworm |
| Haplochrois thalycra Meyrick, 1897 | |
| Harrisina metallica Stretch, 1885 | Western grapeleaf skeletonizer |
| Herminia jacchusalis (Walker, 1859) | ⇒ Zanclognatha jacchusalis Walker, 1859 |
| Hesperia colorado harpalus W. H. Edwards, 1881 | Idaho Branded Skipper |
| Hesperia juba Scudder, 1872 | Jagged-border Skipper |
| Hesperumia sulphuraria Packard, 1873 | Sulphur Moth |
| Hydraecia micacea Esper, 1789 | Potate Stem Borer |
| Hyles lineata (Fabricius, 1775) | ⇒ Hyles livornica Esper, 1779 |
| Hypaurotis crysalus Edwards, 1873 | Colorado hairstreak |
| Hyphantria cunea Drury, 1773 | American white moth |
| Hyppa indistincta Smith, 1894 | |
| Icaricia icarioides Boisduval, 1852 | Boisduval's blue |
| Idia suffusalis J. B. Smith, 1899 | |
| Incisalia eryphon (Boisduval, 1852) | ⇒ Callophrys eryphon Boisduval, 1852 |
| Lacinipolia olivacea Morrison, 1874 | Olive Arches |
| Limenitis archippus Cramer, 1775 | Viceroy |
| Limenitis arthemis Drury, 1773 | Albo Admiral |
| Limenitis lorquini Boisduval, 1852 | Lorquin's admiral |
| Limenitis procris anarta Moore, 1877 | |
| Lophocampa maculata Harris, 1841 | Mottled Tiger |
| Loxostege cereralis Zeller, 1872 | Alfalfa Webworm |
| Lycaeides melissa (Edwards, 1873) | ⇒ Plebejus melissa Edwards, 1873 |
| Lycaena (Chalceria) xanthoides Boisduval, 1852 | Gray Copper |
| Lycaena (Epidemia) helloides Boisduval, 1852 | Common purplish copper |
| Lycaena (Epidemia) mariposa Reakirt, 1866 | Forest Copper |
| Lycaena (Lycaena) phlaeas Linnaeus, 1761 | American Copper |
| Lycaena acmon (Westwood, 1851) | ⇒ Plebejus acmon Westwood, 1851 |
| Macaria notata Linnaeus, 1758 | Birch Angle |
| Macroglossum bombus Walker, 1856 | |
| Manduca brontes pamphilius Cramer, 1782 | |
| Manduca quinquemaculatus (Haworth, 1803) | ⇒ Manduca quinquemaculata Haworth, 1803 |
| Marblepsis tiphia Swinhoe, 1903 | |
| Melicleptria honesta | |
| Metzneria paucipunctella Zeller, 1839 | Knapweed seedhead moth |
| Mitoura gryneus (Hübner, 1816) | ⇒ Callophrys gryneus Hübner, 1819 |
| Napeogenes tolosa amara Godman, 1899 | Tolosa Tigerwing |
| Neophasia menapia C. & R. Felder, 1859 | Pine butterfly |
| Nepheronia argia argia Fabricius, 1775 | |
| Nepytia umbrosaria Packard, 1874 | |
| Noctua comes Hübner, 1813 | Lesser Yellow Underwing |
| Noctua pronuba Linnaeus, 1758 | Common yellow underwing moth |
| Nymphalis californica (Boisduval, 1852) | ⇒ Nymphalis xanthomelas Esper, 1781 |
| Occidryas chalcedona (Doubleday, 1847) | ⇒ Euphydryas chalcedona Doubleday, 1847 |
| Ochlodes sylvanoides Boisduval, 1852 | Western Skipper |
| Oligia indirecta (Grote, 1875) | ⇒ Xylomoia indirecta Grote, 1875 |
| Orgyia (Orgyia) antiqua Linnaeus, 1758 | Antique tussock moth |
| Orthosia hibisci Guenée, 1852 | Green Fruitworm |
| Orthosia praeses Grote, 1879 | |
| Paonias excaecata J.E. Smith, 1797 | Blind-Eyed Sphinx |
| Papestra cristifera Walker, 1858 | |
| Papilio (Pterourus) eurymedon Lucas, 1852 | Pale Swallowtail |
| Papilio (Pterourus) rutulus Lucas, 1853 | Western swallowtail |
| Parabagrotis sulinaris Lafontaine, 1998 | |
| Parnassius (Driopa) clodius Ménétriés, 1855 | American Apollo |
| Parnassius smintheus (Doubleday, 1847) | ⇒ Parnassius phoebus Fabricius, 1793 |
| Pediasia dorsipunctellus (Kearfott, 1908) | ⇒ Pediasia dorsipunctella Kearfott, 1908 |
| Peoria tetradella Zeller, 1872 | |
| Perophthalma tullius lasius Motschoulsky, 1845 | |
| Phoebis sennae Linnaeus, 1758 | Cloudless giant sulphur |
| Pholisora catullus Fabricius, 1793 | Common sooty wing |
| Phryganeopsis brunnea Walsingham, 1881 | |
| Phyciodes tharos Drury, 1773 | Early Pearly Crescentspot |
| Pieris (Artogeia) napi Linnaeus, 1758 | 'Margined' Mustard White |
| Pieris (Artogeia) rapae Linnaeus, 1758 | Cabbage butterfly |
| Pieris (Pieris) brassicae Linnaeus, 1758 | Cabbage Butterfly |
| Plataea trilinearia Packard, 1873 | Sagebrush Girdle |
| Platypolia contadina Smith, 1894 | Filefishes |
| Platyprepia virginalis Boisduval, 1852 | Ranchmans Tiger Moth |
| Plebejus (Plebejus) idas (Linnaeus, 1761) | ⇒ Plebejus idas Linnaeus, 1761 |
| Plebejus (Plebejus) saepiolus (Boisduval, 1852) | ⇒ Lycaena clarki Dickson, 1971 |
| Plutella (Plutella) xylostella Linnaeus, 1758 | Cabbage moth |
| Polia purpurissata Grote, 1864 | Purple Arches |
| Polites sabuleti Boisduval, 1852 | Saltgrass Skipper |
| Polygonia zephyrus (Edwards, 1870) | ⇒ Polygonia gracilis Grote & Robi..., 1867 |
| Pontia beckerii W. Edwards, 1871 | Becker's white |
| Pontia protodice Boisduval & ..., 1830 | Checkered White |
| Pronoctua typica Smith, 1894 | |
| Protogygia postera Fauske & Laf..., 2004 | |
| Protolampra rufipectus Morris, 1874 | Red-breasted Dart Moth |
| Pseudobryomima muscosa Hampson, 1905 | Mossy Pseudobryomima |
| Pyrausta (Pyrausta) aurata Scopoli, 1763 | Mint moth |
| Pyrrharctia (Isia) isabella Smith, 1797 | Banded woolly bear |
| Saturnia mendocino Behrens, 1876 | Maculated flounder |
| Satyrium (Satyrium) behrii W.H. Edwards, 1870 | Behr's hairstreak |
| Satyrium (Satyrium) fuliginosa (Edwards, 1861) | ⇒ Satyrium fuliginosum W.H. Edwards, 1861 |
| Satyrium (Satyrium) semiluna Klots, 1930 | Half-moon Hairstreak |
| Scotogramma yakima Smith, 1900 | |
| Setagrotis pallidicollis (Grote, 1880) | ⇒ Setagrotis vocalis Grote, 1879 |
| Speyeria atlantis Edwards, 1862 | 'Atlantis' Atlantis Fritillary |
| Speyeria hydaspe Boisduval, 1869 | Hydaspe Fritillary |
| Speyeria mormonia Boisduval, 1869 | Atronia Fritillary |
| Speyeria mormonia arge Strecker, 1878 | |
| Spilosoma virginica Fabricius, 1798 | Virginia Ermine Moth |
| Stenoma hydraena Meyrick, 1916 | |
| Synanthedon chrysidipennis Boisduval, 1869 | |
| Syngrapha celsa Edwards, 1881 | Fivelined tonguesole |
| Syngrapha orophila Hampson, 1908 | |
| Syngrapha viridisigma Grote, 1874 | Green-marked Looper |
| Tehama bonifatellus Hulst, 1887 | |
| Tetanolita palligera Smith, 1884 | |
| Thymelicus sylvestris Poda, 1761 | Hesperiid Moth |
| Trichocerapoda strigata Smith, 1891 | Lizard beetles |
| Triphosa haesitata Guenée, 1858 | Tissue Moth |
| Vanessa annabella Field, 1971 | West Coast Lady |
| Vanessa atalanta Linnaeus, 1758 | Red Admiral |
| Vanessa cardui Linnaeus, 1758 | Cosmopolitan |
| Xanthorhoe fluctuata Linnaeus, 1758 | Garden Carpet |
| Xestia (Anomogyna) infimatis Grote, 1880 | |
| Xestia (Anomogyna) mustelina J.B. Smith, 1900 | |
| Xestia (Megasema) c-nigrum Linnaeus, 1758 | Cutworm Moth |
| Xestia (Xestia) xanthographa Denis & Schi..., 1775 | Little Grass Frog |
| Xestia finatimis Lafontaine, 1998 | |
