| Abagrotis apposita Grote, 1878 | |
| Abagrotis baueri McDunnough, 1949 | |
| Abagrotis brunneipennis Grote, 1875 | Yankee Dart |
| Abagrotis cupida Grote, 1865 | Brown Climbing Cutworm |
| Abagrotis dickeli Lafontaine, 1998 | |
| Abagrotis discoidalis Grote, 1876 | |
| Abagrotis dodi McDunnough, 1927 | Lake Tahoe draba |
| Abagrotis duanca Smith, 1908 | Dark Dart Moth |
| Abagrotis erratica Smith, 1890 | |
| Abagrotis forbesi (Smith, 1908) | ⇒ Abagrotis nefascia Smith, 1908 |
| Abagrotis glenni Buckett, 1968 | |
| Abagrotis hermina Lafontaine, 1998 | |
| Abagrotis mirabilis Grote, 1879 | |
| Abagrotis nanalis Grote, 1881 | Nanalis Dart Moth |
| Abagrotis nefascia Smith, 1908 | Coastal Heathland Cutworm |
| Abagrotis orbis (Grote, 1876) | ⇒ Abagrotis variata Grote, 1876 |
| Abagrotis petalama Lafontaine, 1998 | |
| Abagrotis placida Grote, 1876 | Red cutworm |
| Abagrotis pulchrata Blackmore, 1925 | |
| Abagrotis reedi Buckett, 1969 | Reed´s Dart Moth |
| Abagrotis rubricundis Buckett, 1968 | |
| Abagrotis scopeops Dyar, 1904 | |
| Abagrotis trigona Smith, 1893 | Luteous Dart |
| Abagrotis turbulenta McDunnough, 1927 | Lake Tahoe draba |
| Abagrotis variata Grote, 1876 | |
| Abagrotis vittifrons Grote, 1864 | Pale-edged Dart Moth |
| Abrostola urentis Guenée, 1852 | Nettle Spectacle |
| Acerra normalis Grote, 1894 | |
| Acontia coquillettii Smith, 1800 | Silktassel |
| Acopa perpallida Grote, 1878 | |
| Acronicta (Acronicta) vulpina (Grote, 1883) | ⇒ Acronicta leporina Linnaeus, 1758 |
| Acronicta americana Harris, 1841 | American Dagger |
| Acronicta brumosa Guenée, 1852 | Charred Dagger |
| Acronicta cyanescens (Hampson, 1909) | ⇒ Acronicta lepusculina Guenée, 1852 |
| Acronicta dactylina Grote, 1874 | Alder Dagger |
| Acronicta falcula Grote, 1877 | Corylus Dagger Moth |
| Acronicta fragilis Guenée, 1852 | Fragile Dagger |
| Acronicta funeralis Grote & Robi..., 1866 | Funerary Dagger |
| Acronicta grisea (Walker, 1856) | ⇒ Acronicta indica Moore, 1857 |
| Acronicta hasta Guenée, 1852 | Cherry Dagger |
| Acronicta impleta Walker, 1856 | Engelmann's milkweed |
| Acronicta impressa Walker, 1856 | Impressed Dagger |
| Acronicta innotata Guenée, 1852 | Birch Dagger |
| Acronicta insularis | Cattail Caterpillar Moth |
| Acronicta lanceolaria Grote, 1875 | Lanceolate Dagger |
| Acronicta lepusculina Guenée, 1852 | Cottonwood Dagger |
| Acronicta lupini Grote, 1873 | Lupine Dagger |
| Acronicta mansueta (Smith, 1897) | ⇒ Acronicta falcula Grote, 1877 |
| Acronicta marmorata Smith, 1897 | Lace sole |
| Acronicta oblinita J.E.Smith, 1797 | Smartweed Caterpillar |
| Acronicta parallela (Grote, 1879) | ⇒ Acronicta falcula Grote, 1877 |
| Acronicta perdita Grote, 1874 | |
| Acronicta quadrata Grote, 1874 | Quadrate Dagger Moth |
| Acronicta radcliffei Harvey, 1875 | Radcliffe'S Dagger |
| Acronicta strigulata Smith, 1897 | Lace sole |
| Acronicta thoracica Grote, 1879 | |
| Actebia (Actebia) fennica Tauscher, 1837 | Black Army Cutworm |
| Actebia balanitis (Grote, 1873) | ⇒ Protexarnis balanitis Grote, 1873 |
| Adelphagrotis indeterminata Walker, 1865 | |
| Adelphagrotis stellaris Grote, 1880 | |
| Admetovis oxymorus Grote, 1873 | Sensitive fern |
| Admetovis similaris Barnes, 1904 | Foureyed sole |
| Afotella cylindrica Grote, 1880 | |
| Agnorisma bugrai Koçak, 1983 | Collard Dart |
| Agrochola pulchella Smith, 1900 | |
| Agrochola purpurea Grote, 1874 | |
| Agrotis (Agrotis) ipsilon Hufnagel, 1766 | Black cutworm |
| Agrotis antica Crabo & Lafo..., 2004 | Burrowing Toads |
| Agrotis gravis Grote, 1874 | |
| Agrotis kingi McDunnough, 1932 | Cushion draba |
| Agrotis longicornis Lafontaine &..., 2004 | |
| Agrotis obliqua Smith, 1903 | Oblique Dart |
| Agrotis orthogonia Morris, 1876 | Pale Western Cutworm |
| Agrotis ruta Eversmann, 1851 | |
| Agrotis stigmosa Morris, 1874 | Spotted Dart |
| Agrotis vancouverensis Grote, 1873 | Sensitive fern |
| Agrotis venerabilis Walker, 1856 | Dusky Cutworm |
| Agrotis vetusta Walker, 1856 | Muted Dart |
| Agrotis volubilis Harvey, 1874 | Blackspotted flounder |
| Alastria chico Lafontaine &..., 2004 | |
| Alypia langtoni Couper, 1865 | Fireweed caterpillar |
| Alypia ridingsii Grote, 1864 | Mountain Forester |
| Amphipoea americana Speyer, 1875 | American Ear |
| Amphipoea interoceanica Smith, 1899 | Interoceanic Ear |
| Amphipoea keiferi Benjamin, 1935 | Blackcheek tonguefish |
| Amphipoea lunata Smith, 1891 | Lizard beetles |
| Amphipoea pacifica (Smith, 1899) | ⇒ Amphipoea americana Speyer, 1875 |
| Amphipyra (Amphipyra) tragopoginis Clerck, 1759 | Mouse |
| Amphipyra glabella Morrison, 1874 | Grey Amphipyra |
| Amphipyra pyramidoides Guenée, 1852 | American Copper Underwing |
| Anagrapha falcifera Kirby, 1837 | Celery Looper |
| Anaplectoides prasina Denis & Schi..., 1775 | Green Arches |
| Anaplectoides pressus Grote, 1874 | Dappled Dart |
| Anarta (Discestra) farnhami Grote, 1873 | |
| Anarta (Discestra) trifolii Hufnagel, 1766 | |
| Anarta antica Smith, 1891 | Lizard beetles |
| Anarta columbica McDunnough, 1930 | Spruce snail |
| Anarta crotchii Grote, 1880 | |
| Anarta decepta Grote, 1883 | Cutworm |
| Anarta edwardsii Smith, 1888 | Cutworm |
| Anarta fulgora Barnes & McD..., 1918 | West Coast sole |
| Anarta fusculenta Smith, 1891 | Lizard beetles |
| Anarta hamata McDunnough, 1930 | Spruce snail |
| Anarta inconcinna Smith, 1888 | |
| Anarta mutata Dod, 1913 | Mutant Moth |
| Anarta nigrolunata Packard, 1867 | |
| Anarta oregonica Grote, 1881 | |
| Anathix aggressa Smith, 1907 | Aggressive Sallow |
| Anathix puta Grote, 1868 | Bay whiff |
| Androloma maccullochii Kirby, 1837 | Maccullochs Forester |
| Andropolia aedon Grote, 1880 | |
| Andropolia contacta Walker, 1856 | Canadian Giant |
| Andropolia diversilineata Grote, 1877 | Threespot flounder |
| Andropolia theodori Grote, 1878 | |
| Anhimella contrahens Walker, 1860 | United Cutworm |
| Anhimella pacifica McDunnough, 1943 | Denseleaf draba |
| Anhimella perbrunnea Grote, 1879 | |
| Anicla exuberans J. B. Smith, 1898 | Exuberant Dart Moth |
| Anicla tepperi Smith, 1888 | Black-girdled Dart Moth |
| Annaphila arvalis H. Edwards, 1875 | Pacific sanddab |
| Annaphila danistica Grote, 1873 | Sensitive fern |
| Annaphila decia Grote, 1875 | |
| Annaphila diva Grote, 1873 | Sensitive fern |
| Apamea (Apamea) rubrirena Treitschke, 1825 | Sedge Darner |
| Apamea (Apamea) sordens Hufnagel, 1766 | Atlantic sole |
| Apamea (Apamea) unanimis Hübner, 1813 | Common Green Darner |
| Apamea (Apamea) zeta Treitschke, 1825 | Exile |
| Apamea acera Smith, 1900 | |
| Apamea albina Grote, 1874 | |
| Apamea alia Guenée, 1852 | Fox Apamea |
| Apamea amputatrix Fitch, 1857 | Yellow Headed Cutworm Moth |
| Apamea antennata Smith, 1890 | Lizard beetles |
| Apamea atriclava (Barnes & McD..., 1913) | ⇒ Apamea lignicolora Guenée, 1852 |
| Apamea atrosuffusa Barnes & McD..., 1913 | California tonguefish |
| Apamea auranticolor Grote, 1873 | |
| Apamea burgessi Morrison, 1874 | Burgess' Apamea Moth |
| Apamea centralis Smith, 1890 | Lizard beetles |
| Apamea cinefacta (Grote, 1881) | ⇒ Apamea sordens Hufnagel, 1766 |
| Apamea cogitata (Smith, 1891) | ⇒ Apamea dubitans Walker, 1856 |
| Apamea commoda Walker, 1857 | Florida Bog Frog |
| Apamea contradicta Smith, 1895 | Northern Banded Quaker |
| Apamea cuculliformis Grote, 1875 | |
| Apamea devastator Brace, 1819 | Glassy cutworm |
| Apamea digitula Mikkola & Mu..., 2006 | Patchtail tonguefish |
| Apamea dubitans Walker, 1856 | Doubtful Agroperina |
| Apamea impulsa Guenée, 1852 | Impulsive Apamea |
| Apamea indocilis Walker, 1856 | Ignorant Apamea |
| Apamea inficita Walker, 1857 | Lined Quaker |
| Apamea inordinata Morrison, 1875 | Mexican Smilisca |
| Apamea lignicolora Guenée, 1852 | Wood-colored Apamea |
| Apamea longula Grote, 1879 | |
| Apamea lutosa Andrews, 1877 | Opalescent Apamea |
| Apamea maxima Dyar, 1904 | |
| Apamea niveivenosa Grote, 1879 | Filefishes |
| Apamea occidens Grote, 1878 | Western Apamea |
| Apamea plutonia Grote, 1883 | Dusky Apamea |
| Apamea scoparia Mikkola, Mus..., 2000 | Brown tonguesole |
| Apamea siskiyou Mikkola and ..., 2009 | Sevenband tonguefish |
| Apamea sora (Smith, 1903) | ⇒ Apamea auranticolor Grote, 1873 |
| Apamea spaldingi Smith, 1909 | Spalding´s Apamea |
| Apamea tahoeensis Mikkola and ..., 2009 | Sevenband tonguefish |
| Apamea unita Smith, 1904 | |
| Apamea vultuosa Grote, 1875 | Airy Apamea |
| Aplectoides condita Guenée, 1852 | |
| Aseptis binotata Walker, 1865 | Rusty Shoulder Knot Moth |
| Aseptis characta Grote, 1880 | |
| Aseptis ethnica Smith, 1899 | |
| Aseptis fanatica (Mustelin, 2006) | ⇒ Aseptis fannatica Mustelin, 2006 |
| Aseptis fumosa Grote, 1879 | |
| Autographa ampla Walker, 1857 | Broken-banded Y |
| Autographa bimaculata Stephens, 1832 | Double-spotted Spangle |
| Autographa buraetica Staudinger, 1892 | Ripplefin tonguefish |
| Autographa californica Speyer, 1875 | Alfalfa Looper |
| Autographa corusca Strecker, 1885 | Petrale sole |
| Autographa flagellum Walker, 1857 | Silver Whip |
| Autographa mappa Grote & Robi..., 1868 | Bay whiff |
| Autographa metallica Grote, 1875 | Shanded Gold Spot |
| Autographa pseudogamma Grote, 1875 | Delicate Silver Y |
| Autographa rubidus (Ottolengui, 1902) | ⇒ Autographa rubida Ottolengui, 1902 |
| Autographa sansoni Dod, 1910 | Alberta Beauty |
| Autographa speciosa Ottolengui, 1902 | Sumatra tonguefish |
| Autographa v-alba Ottolengui, 1902 | Sumatra tonguefish |
| Behrensia conchiformis Grote, 1875 | |
| Bellura obliqua Walker, 1865 | Cattail Borer |
| Benjaminiola colorada Smith, 1900 | |
| Brachionycha borealis Smith, 1899 | Boreal Fan Moth |
| Brachylomia algens Grote, 1878 | |
| Brachylomia discinigra Walker, 1856 | Black-disc Sallow |
| Brachylomia discolor Smith, 1904 | |
| Brachylomia elda French, 1887 | |
| Brachylomia obscurifascia J.T.Troubrid..., 2007 | Hornfishes |
| Brachylomia populi Strecker, 1898 | Reticulate spikefish |
| Brachylomia rectifascia Smith, 1891 | Lizard beetles |
| Brachylomia thula Strecker, 1898 | Reticulate spikefish |
| Calophasia lunula Hufnagel, 1766 | Atlantic sole |
| Caradrina (Caradrina) morpheus Hufnagel, 1766 | Atlantic sole |
| Caradrina camina Smith, 1894 | Filefishes |
| Caradrina meralis Morrison, 1875 | Rare Sand Quaker |
| Catabena lineolata Walker, 1865 | Fine Lined Sallow |
| Cerastis enigmatica Lafontaine &..., 1997 | Clawed Frogs |
| Cerastis gloriosa Lafontaine &..., 1997 | African Clawed Frog |
| Cerastis salicarum Walker, 1857 | Willow Dart |
| Chersotis juncta Grote, 1878 | Stirrup and Spear Dart Moth |
| Chloridea subflexa Guenée, 1852 | Subflexus Straw Moth |
| Chloridea virescens Fabricius, 1777 | Tobacco budworm |
| Chrysodeixis (Chrysodeixis) chalcites Esper, 1789 | Golden Twin-spot |
| Chytonix palliatricula Guenée, 1852 | Cloaked Marvel |
| Coenophila opacifrons Grote, 1878 | Blueberry Dart |
| Condica discistriga Smith, 1894 | Filefishes |
| Condica mersa Morrison, 1875 | |
| Condica vecors Guenée, 1852 | Dusky Groundling |
| Copablepharon absidum Harvey, 1875 | Columbia Dune Moth |
| Copablepharon alaskensis Crabo & Lafo..., 2004 | Burrowing Toads |
| Copablepharon atrinotum Crabo & Lafo..., 2004 | Burrowing Toads |
| Copablepharon canariana McDunnough, 1932 | Cushion draba |
| Copablepharon fuscum Troubridge &..., 1995 | Sand-verbena Moth |
| Copablepharon grandis Strecker, 1875 | Pale Yellow Dune Moth |
| Copablepharon mutans Crabo & Lafo..., 2004 | Burrowing Toads |
| Copablepharon spiritum Crabo & Fauske, 2004 | Leiopelmatids |
| Copablepharon viridisparsa Dod, 1916 | Black durgon |
| Coranarta luteola Grote & Robi..., 1865 | Halibuts |
| Coranarta macrostigma Lafontaine &..., 1987 | Pinktail Durgon |
| Cosmia (Calymnia) calami Harvey, 1876 | American Dun Bar |
| Cosmia (Calymnia) elisae Lafontaine &..., 2003 | Black triggerfish |
| Cosmia (Calymnia) praeacuta Smith, 1894 | Filefishes |
| Cryphia cuerva Barnes, 1907 | Cryphia Moth |
| Cryphia flavidior Barnes & McD..., 1911 | Fringed filefish |
| Cryphia olivacea Smith, 1891 | Lizard beetles |
| Cryptocala acadiensis Bethune-Baker, 1869 | Catocaline dart |
| Cucullia antipoda Strecker, 1877 | |
| Cucullia basipuncta Barnes & McD..., 1918 | West Coast sole |
| Cucullia dorsalis Smith, 1892 | Planehead filefish |
| Cucullia eulepis Grote, 1876 | |
| Cucullia eurekae Poole, 1995 | Pacific plaice |
| Cucullia florea Guenée, 1852 | Gray Hooded Owlet |
| Cucullia intermedia Speyer, 1870 | Dusky Hooded Owlet |
| Cucullia luna Morrison, 1875 | |
| Cucullia mcdunnoughi Henne, 1940 | Sargassum triggerfish |
| Cucullia montanae Grote, 1882 | Coffee cliffbrake |
| Cucullia omissa Dod, 1916 | Black durgon |
| Cucullia postera Guenée, 1852 | |
| Cucullia pulla Grote, 1881 | |
| Cucullia similaris Smith, 1892 | Planehead filefish |
| Cucullia speyeri Lintner, 1874 | Speyer'S Cucullia Moth |
| Cucullia strigata (Smith, 1892) | ⇒ Cucullia oribac Barnes, 1904 |
| Dargida diffusa Walker, 1856 | Wheat Head Armyworm |
| Dargida procinctus Grote, 1873 | Girdler Moth |
| Deltote bellicula Hübner, 1818 | Bog Deltote |
| Diachrysia aereoides Grote, 1864 | Dark-Spotted Looper |
| Diarsia calgary J.B. Smith, 1898 | Calgary Dart |
| Diarsia dislocata J.B. Smith, 1904 | Dislocated Dart |
| Diarsia esurialis Grote, 1881 | |
| Diarsia rosaria Grote, 1878 | Rosey Dart |
| Diarsia rubifera Grote, 1875 | Red Dart |
| Dichagyris variabilis Grote, 1874 | Yellow Dart |
| Dolocucullia dentilinea Smith, 1899 | |
| Dryotype opina Grote, 1878 | |
| Egira cognata Smith, 1894 | Filefishes |
| Egira crucialis Harvey, 1875 | |
| Egira curialis Grote, 1873 | Citrus cutworm |
| Egira dolosa Grote, 1880 | Grieving Woodling |
| Egira februalis Barnes & McD..., 1918 | Mottled Oak Woodling |
| Egira hiemalis Grote, 1874 | |
| Egira perlubens Grote, 1881 | Brown Woodling |
| Egira rubrica Harvey, 1878 | Bridle triggerfish |
| Egira simplex Walker, 1865 | |
| Egira vanduzeei Barnes & Ben..., 1926 | Shortnosed tripodfish |
| Egira variabilis (Smith, 1891) | ⇒ Egira variolosus Gyulai , L. ..., 2011 |
| Elaphria alapallida Pogue & Sull..., 2003 | Pale-winged Midget |
| Enargia decolor Walker, 1858 | Aspen Twoleaf Tier |
| Enargia fausta B.C. Schmidt, 2010 | |
| Enargia infumata Grote, 1874 | Lesser Eyed Sallow |
| Eosphoropteryx thyatyroides Guenée, 1852 | Pink-patched Looper |
| Epidemas cinerea Smith, 1894 | |
| Epidemas obscurus Smith, 1903 | Scrawled soles |
| Epiglaea apiata Grote, 1874 | Cranberry blossom worm |
| Eremobina claudens Walker, 1857 | Dark-winged Quaker |
| Eremobina unicincta Smith, 1902 | Flat cardiapod |
| Euchalcia (Euchalcia) borealis Lafontain & ..., 1991 | Greenback flounder |
| Eucirroedia pampina Guenée, 1852 | Scalloped Sallow |
| Eucoptocnemis canescens Lafontaine, 2004 | |
| Eudryas brevipennis Stretch, 1872 | Rex sole |
| Eueretagrotis perattentus Grote, 1874 | Two-Spot Dart |
| Euplexia benesimilis McDunnough, 1922 | American angle shade |
| Eupsilia devia Grote, 1874 | Lost Sallow |
| Eupsilia fringata Barnes & McD..., 1916 | |
| Eupsilia tristigmata Grote, 1877 | Brown fruitworm |
| Eurois astricta Morrison, 1874 | Great brown dart |
| Eurois nigra Smith, 1894 | Great Black Dart Moth |
| Eurois occulta Linnaeus, 1758 | Great Brocade |
| Euros cervina H. Edwards, 1890 | Jambeau |
| Euros osticollis Troubridge, 2006 | |
| Eutricopis nexilis Morrison, 1875 | White-spotted Midget |
| Euxoa (Chorizagrotis) auxiliaris Grote, 1873 | Army cutworm |
| Euxoa (Chorizagrotis) lidia (Stoll, 1782) | ⇒ Euxoa adumbrata Eversmann, 1842 |
| Euxoa (Euxoa) cursoria Hufnagel, 1766 | Atlantic sole |
| Euxoa (Euxoa) ochrogaster Guenée, 1852 | Red-backed Cutworm |
| Euxoa (Heteroeuxoa) olivia Morrison, 1876 | Spotted triggerfish |
| Euxoa (Heteroeuxoa) septentrionalis Walker, 1865 | |
| Euxoa (Longivesica) divergens Walker, 1857 | Divergent Dart |
| Euxoa (Longivesica) edictalis Smith, 1893 | |
| Euxoa (Longivesica) messoria Harris, 1841 | Dark-sided Cutworm |
| Euxoa (Longivesica) sinelinea Hardwick, 1965 | |
| Euxoa (Orosagrotis) aberrans McDunnough, 1932 | Cushion draba |
| Euxoa (Orosagrotis) flavicollis Smith, 1888 | Yellow-collared Dart Moth |
| Euxoa (Orosagrotis) macrodentata Hardwick, 1965 | |
| Euxoa (Orosagrotis) maimes Smith, 1903 | Southern peacock sole |
| Euxoa (Orosagrotis) manitobana McDunnough, 1925 | Desert draba |
| Euxoa (Orosagrotis) nomas Erschoff, 1874 | Scrawled cowfish |
| Euxoa (Orosagrotis) perolivalis Smith, 1905 | Macao sole |
| Euxoa (Orosagrotis) perpolita Morrison, 1876 | Polished Dart |
| Euxoa (Orosagrotis) ridingsiana Grote, 1875 | |
| Euxoa (Orosagrotis) taura Smith, 1905 | |
| Euxoa (Orosagrotis) wilsoni Grote, 1873 | |
| Euxoa (Palaeoeuxoa) biformata Smith, 1910 | |
| Euxoa (Palaeoeuxoa) intermontana Lafontaine, 1975 | |
| Euxoa (Palaeoeuxoa) mimallonis Grote, 1873 | Ruddy-winged Dart |
| Euxoa (Palaeoeuxoa) shasta Lafontaine, 1975 | |
| Euxoa (Pleonectopoda) altens McDunnough, 1946 | Whitestockinged black fly |
| Euxoa (Pleonectopoda) atomaris Smith, 1890 | |
| Euxoa (Pleonectopoda) aurulenta Smith, 1890 | Dune Cutworm |
| Euxoa (Pleonectopoda) extranea Smith, 1887 | |
| Euxoa (Pleonectopoda) hyperborea Lafontaine, 1987 | |
| Euxoa (Pleonectopoda) lewisi Grote, 1873 | Hooked filefish |
| Euxoa (Pleonectopoda) macleani McDunnough, 1927 | Lake Tahoe draba |
| Euxoa (Pleonectopoda) pestula Smith, 1904 | |
| Euxoa (Pleonectopoda) pleuritica Grote, 1876 | Conglomerated Dart |
| Euxoa (Pleonectopoda) quebecensis Smith, 1900 | Quebec Dart |
| Euxoa (Pleonectopoda) simona McDunnough, 1932 | Cushion draba |
| Euxoa (Pleonectopoda) trifasciata Smith, 1887 | |
| Euxoa (Pleonectopoda) tristicula Morrison, 1875 | Early cutworm |
| Euxoa (Pleonectopoda) vallus Smith, 1900 | |
| Euxoa (Pleonectopoda) vetusta Walker, 1865 | |
| Euxoa (Pleonectopoda) westermanni Staudinger, 1857 | Spinybacked cowfish |
| Euxoa aequalis Harvey, 1876 | Kamchatka flounder |
| Euxoa agema Strecker, 1899 | Kamchatka flounder |
| Euxoa albipennis Grote, 1877 | White-striped Dart |
| Euxoa annulipes Smith, 1890 | |
| Euxoa atristrigata Smith, 1890 | |
| Euxoa auripennis Lafontaine, 1974 | |
| Euxoa basalis Grote, 1879 | |
| Euxoa bicollaris Grote, 1878 | |
| Euxoa bifasciata Smith, 1887 | |
| Euxoa bochus Morrison, 1874 | |
| Euxoa brevipennis Smith, 1887 | |
| Euxoa brunneigera Grote, 1876 | |
| Euxoa campestris Grote, 1875 | Flat Dart |
| Euxoa cana Lafontaine, 1974 | |
| Euxoa castanea Lafontaine, 1981 | Boxfishes |
| Euxoa catenula Grote, 1879 | |
| Euxoa choris Harvey, 1876 | |
| Euxoa cicatricosa Grote & Robi..., 1865 | Halibuts |
| Euxoa cinereopallidus Smith, 1903 | Southern peacock sole |
| Euxoa citricolor Grote, 1880 | |
| Euxoa comosa Morrison, 1876 | Spotted triggerfish |
| Euxoa cona Strecker, 1898 | Reticulate spikefish |
| Euxoa costata Grote, 1876 | |
| Euxoa dargo Strecker, 1898 | Reticulate spikefish |
| Euxoa declarata Walker, 1865 | Clear Dart |
| Euxoa difformis Smith, 1900 | |
| Euxoa emma L. G. Crabo ..., 2007 | Spotted trunkfish |
| Euxoa excogita (Smith, 1900) | ⇒ Euxoa brunneigera Grote, 1876 |
| Euxoa faulkneri Mustelin, 2000 | |
| Euxoa foeminalis Smith, 1900 | |
| Euxoa furtivus Smith, 1890 | |
| Euxoa fuscigerus Grote, 1874 | |
| Euxoa hardwicki Lafontaine, 1987 | |
| Euxoa henrietta Smith, 1900 | |
| Euxoa hollemani Grote, 1874 | |
| Euxoa idahoensis Grote, 1878 | |
| Euxoa infausta Walker, 1865 | |
| Euxoa infracta Morrison, 1875 | |
| Euxoa intrita Morrison, 1874 | |
| Euxoa laetificans Smith, 1894 | Filefishes |
| Euxoa latro Barnes & Ben..., 1926 | Bermuda cowfish |
| Euxoa lillooet McDunnough, 1927 | Lake Tahoe draba |
| Euxoa lineifrons Smith, 1890 | |
| Euxoa lucida Barnes & McD..., 1912 | Sand sole |
| Euxoa medialis Smith, 1888 | Median-banded Dart |
| Euxoa melura McDunnough, 1932 | Cushion draba |
| Euxoa misturata Smith, 1890 | |
| Euxoa mitis Smith, 1894 | Filefishes |
| Euxoa moerens Grote, 1883 | |
| Euxoa munis Grote, 1879 | |
| Euxoa murdocki Smith, 1890 | |
| Euxoa nevada Smith, 1900 | |
| Euxoa nostra Smith, 1890 | |
| Euxoa obeliscoides Guenée, 1852 | Obelisk Dart |
| Euxoa oblongistigma Smith, 1887 | |
| Euxoa occidentalis Lafontaine &..., 1982 | Smooth trunkfish |
| Euxoa olivalis Grote, 1879 | |
| Euxoa pallidimacula Lafontaine, 1987 | |
| Euxoa pallipennis Smith, 1887 | |
| Euxoa perexcellens Grote, 1875 | |
| Euxoa permixta McDunnough, 1940 | |
| Euxoa plagigera Morrison, 1874 | |
| Euxoa pluralis Grote, 1878 | |
| Euxoa punctigera Walker, 1865 | |
| Euxoa quadridentata Grote & Robi..., 1865 | Halibuts |
| Euxoa recula Harvey, 1876 | |
| Euxoa rockburnei Hardwick, 1973 | Honeycomb cowfish |
| Euxoa rufula Smith, 1887 | Mountain Dart Moth |
| Euxoa satiens Smith, 1890 | |
| Euxoa satis Harvey, 1876 | |
| Euxoa scotogrammoides McDunnough, 1932 | Cushion draba |
| Euxoa servitus (Smith, 1895) | ⇒ Euxoa servita Smith, 1895 |
| Euxoa setonia McDunnough, 1927 | Lake Tahoe draba |
| Euxoa silens Grote, 1875 | Silent Dart |
| Euxoa simulata McDunnough, 1946 | Whitestockinged black fly |
| Euxoa subandera Lafontaine, 1987 | |
| Euxoa terrenus Smith, 1900 | |
| Euxoa tessellata Harris, 1841 | Striped Cutworm |
| Euxoa tocoyae Smith, 1900 | |
| Euxoa tronellus Smith, 1903 | Southern peacock sole |
| Euxoa ustulata Lafontaine, 1976 | Boxfish |
| Feltia (Feltia) herilis Grote, 1873 | Herald Dart |
| Feltia (Feltia) jaculifera Guenée, 1852 | Dingy cutworm |
| Feltia (Feltia) subgothica Haworth, 1810 | Gothic Dart |
| Feltia (Trichosilia) beringiana Lafontaine &..., 1986 | Trunkfishes |
| Feltia (Trichosilia) boreana Lafontaine, 1986 | Basketfish |
| Feltia (Trichosilia) mollis Walker, 1857 | Soft Dart |
| Feltia (Trichosilia) nigrita (Graeser, 1892) | ⇒ Trichosilia acarnea Graeser, 1892 |
| Feltia (Trichosilia) woodiana Lafontaine, 1986 | Basketfish |
| Feralia comstocki Grote, 1874 | Comstock'S Sallow |
| Feralia deceptiva McDunnough, 1920 | Deceptive Sallow |
| Feralia februalis Grote, 1874 | |
| Feralia jocosa Guenée, 1852 | Jocose Sallow |
| Fishia connecta Smith, 1894 | Filefishes |
| Fishia discors Grote, 1881 | Garden cutworm |
| Fishia illocata Walker, 1857 | Wandering Brocade |
| Fishia nigrescens Hammond & L...., 2013 | Tree-hole Coqui |
| Fishia yosemitae Grote, 1873 | Dark Gray Fishia |
| Galgula partita Guenée, 1852 | The Wedgeling |
| Globia oblonga Grote, 1882 | Oblong Sedge Borer Moth |
| Globia subflava Grote, 1882 | Subflava Sedge Borer Moth |
| Graphiphora augur Fabricius, 1775 | Double Dart |
| Hada sutrina Grote, 1881 | Sutrina Moth |
| Hadena (Hadena) variolata Smith, 1888 | |
| Hadena caelestis Troubridge &..., 2002 | |
| Hadena capsularis Guenée, 1852 | Capsule Moth |
| Hadena ectrapela Smith, 1898 | |
| Hadena siskiyou Troubridge &..., 2002 | |
| Hadenella pergentilis Grote, 1883 | |
| Hecatera dysodea Denis & Schi..., 1775 | Moth |
| Helicoverpa zea Boddie, 1850 | American bollworm |
| Heliocheilus paradoxus Grote, 1865 | Paradoxical Grass Moth |
| Heliolonche modicella Grote, 1873 | Sensitive fern |
| Heliothis (Heliothis) belladonna H. Edwards, 1881 | Fivelined tonguesole |
| Heliothis (Heliothis) ononis Denis & Schi..., 1775 | Flax Bollworm |
| Heliothis (Heliothis) oregonica H. Edwards, 1875 | Oregon Gem |
| Heliothis (Heliothis) phloxiphaga Grote & Robi..., 1867 | Artematopid beetles |
| Heliothis (Heliothis) proruptus Grote, 1873 | Sensitive fern |
| Heliothodes diminutiva Grote, 1873 | Small Heliothodes Moth |
| Helotropha reniformis Grote, 1874 | Kidney-spotted Rustic |
| Hemieuxoa rudens Harvey, 1874 | Hemieuxoa Moth |
| Hillia iris Zetterstedt, 1839 | Iris Rover |
| Hillia maida Dyar, 1904 | Plain Rover Moth |
| Homoglaea californica Smith, 1891 | Lizard beetles |
| Homoglaea carbonaria Harvey, 1876 | |
| Homoglaea dives Smith, 1907 | |
| Homoglaea hircina Morrison, 1875 | Goat sallow |
| Homorthodes carneola McDunnough, 1943 | Denseleaf draba |
| Homorthodes communis Dyar, 1904 | Alder Quaker |
| Homorthodes discreta Barnes & McD..., 1916 | |
| Homorthodes fractura Smith, 1906 | |
| Homorthodes furfurata Grote, 1874 | Northern Scurfy Quaker |
| Homorthodes hanhami Barnes & McD..., 1911 | Fringed filefish |
| Hydraecia medialis J.B. Smith, 1892 | Planehead filefish |
| Hydraecia obliqua Harvey, 1876 | Norwegian topknot |
| Hydraecia perobliqua Hampson, 1910 | False Rosy Rustic Moth |
| Hypocoena inquinata Guenée, 1852 | Sordid Wainscot |
| Hypocoena rufostrigata Packard, 1806 | Brown-streaked Rustic |
| Hyppa brunneicrista Smith, 1902 | |
| Hyppa contrasta McDunnough, 1946 | Summer Hyppa Moth |
| Hyppa indistincta Smith, 1894 | |
| Hyppa xylinoides Guenée, 1852 | Common Hyppa |
| Ipimorpha nanaimo Barnes, 1905 | Caribbean puffer |
| Ipimorpha pleonectusa Grote, 1873 | Blackcheeked aspen caterpillar |
| Ipimorpha viridipallida Barnes & McD..., 1916 | |
| Lacanobia atlantica Grote, 1874 | Atlantic Arches |
| Lacanobia grandis Guenée, 1852 | Grand Arches |
| Lacanobia nevadae Grote, 1876 | Nevada Arches |
| Lacanobia radix Walker, 1856 | Barking Frogs |
| Lacanobia subjuncta Grote & Robi..., 1868 | Bay whiff |
| Lacinipolia anguina Grote, 1881 | Snaky Arches |
| Lacinipolia bucketti Selman & Leu..., 2000 | Southern puffer |
| Lacinipolia buscki Barnes & Ben..., 1927 | Bermuda cowfish |
| Lacinipolia circumcincta Smith, 1891 | Lizard beetles |
| Lacinipolia comis Grote, 1876 | |
| Lacinipolia cuneata Grote, 1873 | Cuneate Arches |
| Lacinipolia davena Smith, 1901 | Least puffer |
| Lacinipolia lorea Guenée, 1852 | Bridled Arches |
| Lacinipolia lustralis Grote, 1875 | The Lustral Mamestra |
| Lacinipolia meditata Grote, 1873 | Pink-backed cutworm |
| Lacinipolia olivacea Morrison, 1874 | Olive Arches |
| Lacinipolia patalis Grote, 1873 | |
| Lacinipolia pensilis Grote, 1874 | |
| Lacinipolia quadrilineata Grote, 1873 | |
| Lacinipolia rectilinea Smith, 1888 | |
| Lacinipolia renigera Stephens, 1829 | Bristly Cutworm |
| Lacinipolia stenotis Hampson, 1903 | Blunthead puffer |
| Lacinipolia stricta Walker, 1865 | Brown Arches Moth |
| Lacinipolia strigicollis Wallengren, 1860 | Collared Arches Moth |
| Lacinipolia vicina Grote, 1874 | Neighborly Arches |
| Lacinipolia vittula Grote, 1882 | |
| Lasionycta brunnea Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta caesia Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta carolynae Crabo, 2009 | West Indian Treefrogs |
| Lasionycta conjugata Smith, 1899 | Dart-poison Frogs |
| Lasionycta coracina Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta discolor (Smith, 1899) | ⇒ Lasionycta klotsi Richards, 1943 |
| Lasionycta fergusoni Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta gelida Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta haida Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta illima Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta impingens (Walker, 1857) | ⇒ Lasiestra impingens Walker, 1857 |
| Lasionycta lagganata (Barnes & Ben..., 1924) | ⇒ Lasiestra lagganata Barnes & Ben..., 1924 |
| Lasionycta leucocycla Staudinger, 1857 | Dart-poison Frogs |
| Lasionycta luteola Smith, 1894 | Dart Poison Frog |
| Lasionycta macleani (McDunnough, 1927) | ⇒ Lasionycta mono Crabo & Lafo..., 2009 |
| Lasionycta mutilata (Smith, 1898) | ⇒ Lasionycta rainieri Smith, 1900 |
| Lasionycta perplexa (Smith, 1887) | ⇒ Lasionycta perplexella Crabo & Lafo..., 2009 |
| Lasionycta perplexella Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta poca Barnes & Ben..., 1923 | Planehead filefish |
| Lasionycta promulsa (Morrison, 1875) | ⇒ Lasionycta pulverea Crabo & Lafo..., 2009 |
| Lasionycta quadrilunata (Grote, 1874) | ⇒ Lasionycta sasquatch Crabo & Lafo..., 2009 |
| Lasionycta sasquatch Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta secedens Walker, 1858 | |
| Lasionycta silacea Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta skraelingia Herrich-Schä..., 1852 | Pygmy puffer |
| Lasionycta staudingeri (Aurivillius, 1891) | ⇒ Anarta zemblica Hampson, 1903 |
| Lasionycta subfumosa Gibson, 1920 | |
| Lasionycta subfuscula (Grote, 1873) | ⇒ Lasionycta taigata Lafontaine, 1988 |
| Lasionycta taigata Lafontaine, 1988 | |
| Lasionycta uniformis (Smith, 1894) | ⇒ Lasiestra uniformis Smith, 1893 |
| Lateroligia ophiogramma (Esper, 1794) | ⇒ Apamea ophiogramma Esper, 1794 |
| Leucania anteroclara Smith, 1902 | |
| Leucania commoides Guenée, 1852 | Comma Wainscot |
| Leucania dia (Grote, 1879) | ⇒ Leucania insueta Guenée, 1852 |
| Leucania farcta Grote, 1881 | Meadow Wainscot Moth |
| Leucania insueta Guenée, 1852 | Heterodox Wainscot |
| Leucania multilinea Walker, 1856 | Engelmann's milkweed |
| Leucania oregona (Smith, 1902) | ⇒ Leucania farcta Grote, 1881 |
| Litholomia napaea Morrison, 1874 | False Pinion |
| Lithomoia germana Morrison, 1874 | American Brindle |
| Lithophane amanda Smith, 1900 | Amanda'S Pinion Moth |
| Lithophane atara Smith, 1909 | |
| Lithophane baileyi Grote, 1877 | Bailey'S Pinion Moth |
| Lithophane boogeri J.T.Troubridge, 2006 | |
| Lithophane contenta Grote, 1880 | Brown leatherjacket |
| Lithophane dilatocula Smith, 1900 | |
| Lithophane fagina Morrison, 1874 | Hoary Pinion |
| Lithophane gausapata Grote, 1883 | |
| Lithophane georgii Grote, 1875 | George´s Pinion |
| Lithophane innominata Smith, 1893 | Nameless Pinion |
| Lithophane itata Smith, 1899 | |
| Lithophane patefacta Walker, 1858 | Dimorphic Pinion |
| Lithophane pertorrida McDunnough, 1942 | |
| Lithophane petulca Grote, 1874 | Wanton Pinion |
| Lithophane pexata Grote, 1874 | Plush-naped Pinion |
| Lithophane ponderosa J.T. Troubri..., 2003 | Lemon blaasop |
| Lithophane thaxteri Grote, 1874 | Nonconformist |
| Lycophotia phyllophora Grote, 1874 | Leafy Dart |
| Macronoctua onusta Grote, 1874 | Iris borer |
| Mamestra configurata Walker, 1856 | Bertha Armyworm |
| Mamestra curialis Smith, 1887 | Scripted Arches |
| Megalographa biloba Stephens, 1830 | Bilobed Looper |
| Melanapamea mixta Grote, 1881 | Coastal Plain Apamea |
| Melanchra adjuncta Boisduval, 1841 | Hitched Arches |
| Melanchra assimilis Morrison, 1874 | Black Arches |
| Melanchra picta Harris, 1841 | Zebra caterpillar |
| Melanchra pulverulenta Smith, 1888 | |
| Mesogona olivata Harvey, 1874 | False-eye toby |
| Mesogona rubra L.G. Crabo &..., 1997 | Tongueless Frogs |
| Mesogona subcuprea Crabo & Hammond, 1997 | Coastal Tailed Frog |
| Microhelia angelica Smith, 1900 | |
| Mniotype ducta Grote, 1878 | |
| Mniotype pallescens McDunnough, 1946 | Whitestockinged black fly |
| Mniotype tenera Smith, 1900 | |
| Mythimna (Pseudaletia) unipuncta Haworth, 1809 | American armyworm |
| Mythimna oxygala Grote, 1881 | Lesser Wainscot |
| Mythimna yuconensis Hampson, 1911 | |
| Nedra hoeffleri Clarke, 1940 | |
| Nedra stewarti Grote, 1875 | |
| Neoligia albirena Troubridge &..., 2002 | Naked sole |
| Neoligia invenusta Troubridge &..., 2002 | Naked sole |
| Neoligia lancea Troubridge &..., 2002 | Naked sole |
| Neoligia lillooet Troubridge &..., 2002 | Naked sole |
| Neoligia subjuncta Smith, 1898 | Connected Brocade |
| Neoligia tonsa Grote, 1880 | |
| Nephelodes demaculata Barnes & McD..., 1918 | Disc flounder |
| Nephelodes minians Guenée, 1852 | Bronzed Cutworm |
| Noctua comes Hübner, 1813 | Lesser Yellow Underwing |
| Noctua pronuba Linnaeus, 1758 | Common yellow underwing moth |
| Nudorthodes texana Smith, 1900 | |
| Ochropleura implecta Lafontaine, 1998 | American Flame-shouldered Dart |
| Oligia bridghamii Grote & Robi..., 1866 | Bridgham's Brocade |
| Oligia divesta Grote, 1874 | |
| Oligia modica Guenée, 1852 | Black Banded Brocade |
| Oligia obtusa Smith, 1902 | Flat cardiapod |
| Oligia rampartensis (Dyar, 1923) | ⇒ Oligia violacea Grote, 1881 |
| Oligia tusa Grote, 1878 | |
| Oligia violacea Grote, 1881 | |
| Orthodes detracta Walker, 1857 | Disparaged Arches |
| Orthodes goodelli Grote, 1875 | Goodell′s Arches |
| Orthodes noverca Grote, 1878 | |
| Orthodes obscura Smith, 1888 | Obscure Quaker |
| Orthosia arthrolita Harvey, 1874 | |
| Orthosia behrensiana Grote, 1875 | |
| Orthosia erythrolita Grote, 1879 | |
| Orthosia ferrigera Smith, 1894 | Filefishes |
| Orthosia hibisci Guenée, 1852 | Green Fruitworm |
| Orthosia mys Dyar, 1902 | |
| Orthosia pacifica Harvey, 1874 | False-eye toby |
| Orthosia praeses Grote, 1879 | |
| Orthosia pulchella Harvey, 1876 | |
| Orthosia revicta Morrison, 1875 | Rusty whitesided caterpillar |
| Orthosia segregata Smith, 1891 | |
| Orthosia transparens Grote, 1881 | |
| Panthea acronyctoides Walker, 1861 | Black Zigzag |
| Panthea furcilla Packard, 1864 | Eastern Panthea |
| Panthea gigantea French, 1890 | Banded leopard blowfish |
| Panthea virginarius Grote, 1880 | Cascades Panthea |
| Papaipema insulidens Bird, 1902 | Ragwort Stem Borer |
| Papaipema limata (Bird, 1908) | ⇒ Papaipema baptisiae Bird, 1902 |
| Papestra biren Goeze, 1781 | Glaucous Shears |
| Papestra brenda Barnes & McD..., 1916 | |
| Papestra cristifera Walker, 1858 | |
| Papestra invalida Smith, 1900 | Lizard beetles |
| Papestra quadrata Smith, 1891 | Lizard beetles |
| Parabagrotis cupidissima Grote, 1875 | |
| Parabagrotis exsertistigma Morrison, 1874 | |
| Parabagrotis formalis Grote, 1874 | |
| Parabagrotis insularis Grote, 1876 | |
| Parabagrotis sulinaris Lafontaine, 1998 | |
| Parabarrovia keelei Gibson, 1920 | |
| Parabarrovia ogilviensis Lafontaine, 1988 | |
| Parabarrovia omilaki Lafontaine, 1998 | |
| Paradiarsia littoralis Packard, 1867 | Labrador Dart Moth |
| Parastichtis suspecta Hübner, 1817 | Squirrel Treefrog |
| Peridroma saucia Hübner, 1808 | Pearly Underwing |
| Perigonica angulata Smith, 1890 | |
| Perigonica pectinata Smith, 1887 | |
| Perigonica tertia Dyar, 1902 | |
| Phlogophora periculosa Guenée, 1852 | Brown angle shades |
| Photedes defecta Grote, 1874 | Narrow-winged Borer |
| Photedes didonea Smith, 1894 | Filefishes |
| Plagiomimicus dimidiata Grote, 1877 | |
| Plagiomimicus spumosum Grote, 1874 | Frothy Moth |
| Plagiomimicus tepperi Morrison, 1875 | |
| Plagiomimicus yakama Crabo & Wikle, 0 | |
| Platypolia anceps Stephens, 1850 | |
| Platypolia contadina Smith, 1894 | Filefishes |
| Platypolia loda Strecker, 1898 | Reticulate spikefish |
| Platypolia mactata Guenée, 1852 | Adorable Brocade |
| Pleromella opter Dyar, 1921 | |
| Pleromelloida bonuscula Smith, 1898 | |
| Pleromelloida cinerea Smith, 1904 | Ashy Pleromelloida |
| Pleromelloida conserta Grote, 1881 | |
| Plusia nichollae Hampson, 1913 | |
| Plusia putnami Grote, 1873 | Lempke's gold spot |
| Plusia venusta Walker, 1865 | Green milkweed |
| Polia (Chera) richardsoni Curtis, 1835 | |
| Polia discalis Grote, 1877 | Threespot flounder |
| Polia imbrifera Guenée, 1852 | Cloudy Arches |
| Polia nimbosa Guenée, 1852 | Stormy Arches |
| Polia nugatis Smith, 1898 | |
| Polia piniae Buckett & Bauer, 1966 | Burrfishes |
| Polia propodea McCabe, 1980 | |
| Polia purpurissata Grote, 1864 | Purple Arches |
| Polia rogenhoferi Möschler, 1870 | Burrfishes |
| Polychrysia esmeralda Oberthur, 1880 | Burrfish |
| Polychrysia morigera Edwards, 1887 | Disjunct Looper |
| Ponometia binocula Grote, 1875 | Prairie Bird-dropping Moth |
| Ponometia candefacta Hübner, 1831 | Olive Shaded Bird Dropping Moth |
| Ponometia elegantula Harvey, 1876 | Arizona Bird Dropping Moth |
| Ponometia semiflava Guenée, 1852 | Half Yellow Moth |
| Ponometia sutrix Grote, 1880 | |
| Ponometia tortricina Zeller, 1872 | |
| Prognorisma substrigata Smith, 1895 | Bottom-striped Dart |
| Pronoctua craboi Lafontaine, 1998 | |
| Pronoctua peabodyae (Dyar, 1903) | ⇒ Pronoctua typica Smith, 1894 |
| Pronoctua typica Smith, 1894 | |
| Properigea albimacula Barnes & McD..., 1912 | Sharp-headed sole |
| Properigea niveirena Harvey, 1876 | |
| Protodeltote albidula Guenée, 1852 | Pale Glyph |
| Protogygia album Harvey, 1876 | |
| Protogygia arena Troubridge &..., 2004 | Checkered puffer |
| Protogygia comstocki McDunnough, 1934 | Cape Thompson draba |
| Protogygia elevata Smith, 1891 | Lizard beetles |
| Protogygia enalaga McDunnough, 1932 | Cushion draba |
| Protogygia lagena Grote, 1875 | |
| Protogygia milleri Grote, 1875 | |
| Protogygia postera Fauske & Laf..., 2004 | |
| Protolampra brunneicollis Grote, 1864 | Brown-collared Dart |
| Protolampra rufipectus Morris, 1874 | Red-breasted Dart Moth |
| Protoperigea anotha Dyar, 1904 | Kaslo Rustic Moth |
| Protoperigea posticata Harvey, 1875 | |
| Protoperigea umbricata Mustelin, 2006 | Rock sole |
| Protorthodes alfkenii Grote, 1895 | Pacific burrfish |
| Protorthodes curtica Smith, 1890 | |
| Protorthodes incincta Morrison, 1874 | Banded Quaker |
| Protorthodes oviduca Guenée, 1852 | Ruddy Quaker |
| Protorthodes rufula Grote, 1874 | Rufous Quaker |
| Protoschinia nuchalis (Grote, 1878) | ⇒ Schinia nuchalis Grote, 1878 |
| Proxenus mendosa McDunnough, 1927 | Lake Tahoe draba |
| Proxenus mindara Barnes & McD..., 1913 | Rough Skinned Cutworm moth |
| Proxenus miranda Grote, 1873 | Miranda Moth |
| Psammopolia arietis Grote, 1879 | |
| Psammopolia wyatti Barnes & Ben..., 1926 | Shortnosed tripodfish |
| Pseudanarta caeca Dod, 1913 | Blotched porcupinefish |
| Pseudanarta crocea H. Edwards, 1875 | Sanddabs |
| Pseudanarta flava Grote, 1874 | |
| Pseudanarta singula Grote, 1880 | |
| Pseudeva palligera Grote, 1881 | Western Unspotted Looper |
| Pseudobryomima muscosa Hampson, 1905 | Mossy Pseudobryomima |
| Pseudohermonassa flavotincta Smith, 1892 | |
| Pseudohermonassa tenuicula Morrison, 1874 | Morrison'S Sooty Dart |
| Pseudorthodes irrorata Smith, 1887 | |
| Pseudorthodes puerilis Grote, 1874 | |
| Pyrrhia exprimens Walker, 1857 | Purple-lined Sallow |
| Rachiplusia ou Guenée, 1852 | Gray Looper |
| Raphia frater Grote, 1864 | Brother |
| Resapamea diluvius L.G. Crabo, 2013 | Mottled Coqui |
| Resapamea innota Smith, 1908 | |
| Resapamea mammuthus L.G. Crabo, 2013 | Mottled Coqui |
| Resapamea passer Guenée, 1852 | Dock Rustic |
| Resapamea venosa J.B. Smith, 1903 | Southern peacock sole |
| Rhizagrotis albalis Grote, 1878 | |
| Rhizagrotis cloanthoides Grote, 1880 | |
| Rhizagrotis modesta Barnes & McD..., 1911 | Fringed filefish |
| Rhizagrotis stylata J. B. Smith, 1893 | |
| Rhyacia (Rhyacia) clemens (Smith, 1890) | ⇒ Rhyacia quadrangula Zetterstedt, 1839 |
| Rhyacia (Rhyacia) quadrangula Zetterstedt, 1839 | |
| Schinia acutilinea Grote, 1878 | Acute-Lined Flower Moth |
| Schinia albafascia Smith, 1883 | Western cordilleran bunchberry |
| Schinia argentifascia Barnes & McD..., 1912 | Sand sole |
| Schinia aurantiaca H. Edwards, 1881 | Fivelined tonguesole |
| Schinia biundulata Smith, 1891 | Pacific halibut |
| Schinia cumatilis Grote, 1865 | Prairie Sage flower Moth |
| Schinia edwardsii Smith, 1906 | |
| Schinia gaurae J. E. Smith, 1797 | Clouded Crimson |
| Schinia honesta Grote, 1881 | Black-Spotted Gem |
| Schinia intermontana (Hardwick, 1958) | ⇒ Schinia villosa Grote, 1864 |
| Schinia lynda Troubridge, 2002 | Headfishes |
| Schinia meadi Grote, 1873 | Meads Flower Moth |
| Schinia oleagina Morrison, 1875 | |
| Schinia perminuta H. Edwards, 1881 | Fivelined tonguesole |
| Schinia persimilis Grote, 1873 | Persimilis Flower Moth |
| Schinia sexplagiata Smith, 1891 | Pacific halibut |
| Schinia suetus (Grote, 1873) | ⇒ Schinia sueta Grote, 1873 |
| Schinia unimacula Smith, 1891 | Pacific halibut |
| Schinia vacciniae H. Edwards, 1875 | Sanddabs |
| Schinia villosa Grote, 1864 | Little Dark Gem |
| Schinia walsinghami H. Edwards, 1881 | Fivelined tonguesole |
| Scotogramma densa Smith, 1893 | |
| Scotogramma fervida Barnes & McD..., 1912 | Sand sole |
| Scotogramma orida Smith, 1903 | Southern peacock sole |
| Scotogramma ptilodonta Grote, 1883 | |
| Scotogramma stretchii H. Edwards, 1887 | Fourspot flounder |
| Scotogramma submarina Grote, 1883 | |
| Scotogramma yakima Smith, 1900 | |
| Setagrotis pallidicollis (Grote, 1880) | ⇒ Setagrotis vocalis Grote, 1879 |
| Sideridis fuscolutea Smith, 1892 | |
| Sideridis maryx Guenée, 1852 | Maroonwing |
| Sideridis rosea Harvey, 1874 | False-eye toby |
| Sideridis uscripta Smith, 1891 | Lizard beetles |
| Spaelotis bicava Lafontaine, 1998 | Western w-marked cutworm |
| Spaelotis clandestina Harris, 1841 | Clandestine Dart |
| Spaelotis havilae Grote, 1881 | Ver-gris glouton |
| Spaelotis unicava Lafontaine, 1998 | |
| Spaelotis velicava Lafontaine, 1998 | |
| Spiramater lutra Guenée, 1852 | Otter Arches |
| Spodoptera exigua Hübner, 1808 | African armyworm |
| Spodoptera praefica Grote, 1875 | Western yellow-striped armyworm |
| Stretchia muricina Grote, 1876 | |
| Stretchia plusiaeformis H. Edwards, 1874 | Balloonfish |
| Striacosta albicosta Smith, 1888 | Western bean cutworm |
| Sunira bicolorago (Guenée, 1852) | ⇒ Agrochola bicolorago Guenée, 1852 |
| Sunira decipiens (Grote, 1881) | ⇒ Agrochola decipiens Grote, 1881 |
| Sunira verberata (Smith, 1904) | ⇒ Agrochola verberata Smith, 1904 |
| Sutyna privata Walker, 1857 | Private Sallow |
| Sympistis acheron J.T.Troubridge, 2008 | Eyed sole |
| Sympistis albifasciata Hampson, 1906 | |
| Sympistis amenthes J.T.Troubridge, 2008 | Eyed sole |
| Sympistis amun J.T.Troubridge, 2008 | Eyed sole |
| Sympistis anweileri J.T.Troubridge, 2008 | North American Spadefoots |
| Sympistis apep J.T.Troubridge, 2008 | Eyed sole |
| Sympistis aterrima Grote, 1879 | |
| Sympistis augustus Harvey, 1875 | |
| Sympistis barnesii Smith, 1899 | |
| Sympistis californiae McDunnough, 1946 | Eastern Spadefoot |
| Sympistis chalybdis Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis chandleri Grote, 1873 | |
| Sympistis cherti J.T.Troubridge, 2008 | Eyed sole |
| Sympistis chionanthi J.E. Smith, 1797 | Fringe Tree Sallow |
| Sympistis chons J.T.Troubridge, 2008 | Eyed sole |
| Sympistis chorda Grote, 1880 | |
| Sympistis cibalis Grote, 1880 | |
| Sympistis cocytus J.T.Troubridge, 2008 | Eyed sole |
| Sympistis columbia McDunnough, 1922 | Eastern Spadefoot |
| Sympistis coprocolor Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis corusca Smith, 1899 | |
| Sympistis dentata Grote, 1875 | Blueberry Sallow |
| Sympistis dinalda J.B. Smith, 1908 | Broad-lined Sallow |
| Sympistis dischorda J.T.Troubridge, 2008 | Eyed sole |
| Sympistis dunbari Harvey, 1876 | |
| Sympistis extremis Smith, 1890 | |
| Sympistis fifia Dyar, 1904 | |
| Sympistis figurata Harvey, 1875 | |
| Sympistis funebris Hübner, 1809 | |
| Sympistis glennyi Grote, 1873 | |
| Sympistis goedeni Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis greyi Troubridge &..., 1998 | Little Grass Frogs |
| Sympistis hathor J.T.Troubridge, 2008 | Eyed sole |
| Sympistis hayesi Grote, 1873 | |
| Sympistis heliophila Paykull, 1793 | |
| Sympistis incubus J.T.Troubridge, 2008 | Eyed sole |
| Sympistis iricolor Smith, 1888 | |
| Sympistis lacticollis Smith, 1908 | |
| Sympistis levis Grote, 1880 | |
| Sympistis major Grote, 1881 | |
| Sympistis meadiana Morrison, 1875 | |
| Sympistis melantho Smith, 1899 | |
| Sympistis mirificalis Grote, 1879 | |
| Sympistis occata Grote, 1875 | Harrow moth |
| Sympistis orbicularis Barnes & McD..., 1912 | Sharp-headed sole |
| Sympistis pallidior Barnes, 1928 | |
| Sympistis parvacana Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis parvanigra Blackmore, 1923 | Ranid Frogs |
| Sympistis poliochroa Hampson, 1906 | |
| Sympistis pudorata Smith, 1893 | |
| Sympistis punctilinea Hampson, 1906 | |
| Sympistis ragani Barnes, 1928 | |
| Sympistis riparia Morrison, 1875 | Dune sympistis |
| Sympistis sagittata Barnes & McD..., 1916 | |
| Sympistis sandaraca Buckett & Bauer, 1967 | Chubby basketfish |
| Sympistis satanella Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis saxatilis Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis semicollaris Smith, 1909 | |
| Sympistis sesmu J.T.Troubridge, 2008 | Eyed sole |
| Sympistis seth J.T.Troubridge, 2008 | Eyed sole |
| Sympistis simplex Smith, 1888 | |
| Sympistis sobek J.T.Troubridge, 2008 | Eyed sole |
| Sympistis sokar J.T.Troubridge, 2008 | Eyed sole |
| Sympistis stabilis Smith, 1895 | Brown Sallow |
| Sympistis tartarea Troubridge &..., 1999 | Little Grass Frogs |
| Sympistis tenuifascia Smith, 1888 | |
| Sympistis umbrifascia Smith, 1894 | Filefishes |
| Sympistis wilsoni Barnes & Ben..., 1924 | Khaki flounder |
| Sympistis youngi McDunnough, 1922 | Eastern Spadefoot |
| Sympistis zetterstedtii (Staudinger, 1857) | ⇒ Sympistis labradoris Staudinger, 1857 |
| Syngrapha abstrusa Eichlin & Cu..., 1978 | Abstrusa Looper |
| Syngrapha alias Ottolengui, 1902 | Hooked Silver Y |
| Syngrapha alticola Walker, 1857 | Alpine Beauty |
| Syngrapha angulidens Smith, 1891 | Lizard beetles |
| Syngrapha borea Aurivillius, 1890 | Brown Frogs |
| Syngrapha celsa Edwards, 1881 | Fivelined tonguesole |
| Syngrapha diasema Boisduval, 1829 | |
| Syngrapha epigaea Grote, 1874 | Epigaea Looper |
| Syngrapha ignea Grote, 1863 | Mountain Beauty |
| Syngrapha interrogationis Linnaeus, 1758 | Cutworm |
| Syngrapha microgamma Hübner, 1823 | Little Bride Looper Moth |
| Syngrapha octoscripta Grote, 1874 | Dusky Silver Y |
| Syngrapha orophila Hampson, 1908 | |
| Syngrapha parilis Hübner, 1809 | |
| Syngrapha rectangula Kirby, 1837 | Angulated Cutworm |
| Syngrapha selecta Walker, 1857 | Blue Metal Mark |
| Syngrapha surena Grote, 1882 | Surena Looper |
| Syngrapha viridisigma Grote, 1874 | Green-marked Looper |
| Tarache areli Strecker, 1898 | Areli |
| Tarache augustipennis Grote, 1875 | Narrow-winged Midget |
| Tarache knowltoni McDunnough, 1940 | |
| Tarache major Smith, 1900 | |
| Tarache toddi Ferris & Laf..., 2009 | Pickerel Frog |
| Tesagrotis atrifrons Grote, 1873 | |
| Tesagrotis corrodera Smith, 1910 | Largescale tonguefish |
| Tesagrotis piscipellis Grote, 1878 | |
| Tholera americana Smith, 1894 | Filefishes |
| Trichocerapoda oblita Grote, 1877 | Threespot flounder |
| Trichocerapoda strigata Smith, 1891 | Lizard beetles |
| Trichoplusia ni Hübner, 1803 | Cabbage Looper |
| Trichordestra dodii Smith, 1905 | Lacanobia dodii |
| Trichordestra lilacina Harvey, 1874 | Aster Arches |
| Trichordestra liquida Grote, 1881 | |
| Trichordestra tacoma Strecker, 1900 | Tacoma Arches |
| Triocnemis saporis Grote, 1881 | Cliff-brake |
| Ufeus hulstii (J.B. Smith, 1908) | ⇒ Ufeus plicatus Grote, 1878 |
| Ufeus plicatus Grote, 1878 | Folded Satyr |
| Ufeus satyricus Grote, 1873 | Brown Satyr Moth |
| Xanthia tatago Lafontaine &..., 2003 | Northern Red-legged Frog |
| Xestia (Anomogyna) albuncula Eversmann, 1851 | |
| Xestia (Anomogyna) fabulosa Ferguson, 1965 | |
| Xestia (Anomogyna) imperita Hübner, 1831 | |
| Xestia (Anomogyna) infimatis Grote, 1880 | |
| Xestia (Anomogyna) mustelina J.B. Smith, 1900 | |
| Xestia (Anomogyna) perquiritata Morrison, 1875 | Boomerang Dart |
| Xestia (Anomogyna) speciosa Hübner, 1813 | |
| Xestia (Anomogyna) vernilis Grote, 1879 | |
| Xestia (Megasema) c-nigrum Linnaeus, 1758 | Cutworm Moth |
| Xestia (Megasema) wockei Moschler, 1862 | |
| Xestia (Pachnobia) lorezi Staudinger, 1891 | |
| Xestia (Pachnobia) lyngei Rebel, 1923 | |
| Xestia (Pachnobia) quieta Hübner, 1813 | |
| Xestia (Pachnobia) tecta Hübner, 1808 | |
| Xestia (Schoyenia) aequaeva Benjamin, 1934 | Eastern Narrow-mouthed Toad |
| Xestia (Schoyenia) liquidaria Eversmann, 1848 | |
| Xestia (Schoyenia) thula Lafontaine &..., 1983 | Foothill Yellow-legged Frog |
| Xestia (Xestia) xanthographa Denis & Schi..., 1775 | Little Grass Frog |
| Xestia alaskae Grote, 1876 | |
| Xestia bryanti Benjamin, 1933 | |
| Xestia cinerascens Smith, 1891 | Lizard beetles |
| Xestia dolosa Franclemont, 1980 | Black-Letter Dart |
| Xestia fergusoni Lafontaine, 1983 | |
| Xestia finatimis Lafontaine, 1998 | |
| Xestia homogena (Staudinger, 1871) | ⇒ Xestia rhaetica Staudinger, 1871 |
| Xestia intermedia Kononenko, 1981 | |
| Xestia inuitica Lafontaine a..., 1998 | Rio Grande Frog |
| Xestia kolymae Herz, 1903 | |
| Xestia laxa Lafontaine a..., 1998 | Plains Leopard Frog |
| Xestia lupa Lafontaine a..., 1998 | Plains Leopard Frog |
| Xestia maculata Smith, 1893 | |
| Xestia mixta (Hübner, 1813) | ⇒ Xestia speciosa Hübner, 1813 |
| Xestia oblata Morrison, 1875 | Rosy Dart |
| Xestia okakensis Packard, 1867 | |
| Xestia plebeia (Smith, 1898) | ⇒ Hemigraphiphora plebeia Smith, 1898 |
| Xestia praevia Lafontaine, 1998 | Praevia Dart |
| Xestia smithii Snellen, 1896 | Smith'S Dart |
| Xestia ursae McDunnough, 1940 | |
| Xestia verniloides Lafontaine, 1998 | |
| Xestia woodi Lafontaine a..., 1983 | Foothill Yellow-legged Frog |
| Xylena brucei Smith, 1892 | Bruce´s Swordgrass Moth |
| Xylena cineritia Grote, 1874 | Gray Swordgrass |
| Xylena curvimacula Morrison, 1874 | Dot-and-Dash Swordgrass |
| Xylena nupera Lintner, 1874 | American Swordgrass |
| Xylena thoracica Putnam-Cramer, 1886 | Acadian Swordgrass Moth |
| Xylomoia indirecta Grote, 1875 | Oblique Brocade |
| Xylotype arcadia Barnes & Ben..., 1922 | Acadian Sallow |
| Zosteropoda hirtipes Grote, 1874 | V-lined Quaker Moth |
| Zotheca tranquilla Grote, 1874 | Elder Moth |
