| Abagrotis alcandola Smith, 1908 | |
| Abagrotis alternata Grote, 1864 | Greater Red Dart |
| Abagrotis bimarginalis Grote, 1883 | |
| Abagrotis crumbi (Franclemont, 1955) | ⇒ Abagrotis nefascia Smith, 1908 |
| Abagrotis cupida Grote, 1865 | Brown Climbing Cutworm |
| Abagrotis discoidalis Grote, 1876 | |
| Abagrotis dodi McDunnough, 1927 | Lake Tahoe draba |
| Abagrotis duanca Smith, 1908 | Dark Dart Moth |
| 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 placida Grote, 1876 | Red cutworm |
| Abagrotis reedi Buckett, 1969 | Reed´s Dart Moth |
| Abagrotis scopeops Dyar, 1904 | |
| Abagrotis striata Buckett, 1968 | |
| 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 |
| Achatia confusa Hübner, 1827 | |
| Actebia balanitis (Grote, 1873) | ⇒ Protexarnis balanitis Grote, 1873 |
| Adelphagrotis carissima Harvey, 1875 | |
| Admetovis icarus Crabo & Schmidt, 2018 | |
| Admetovis oxymorus Grote, 1873 | Sensitive fern |
| Afotella cylindrica Grote, 1880 | |
| Agnorisma bugrai Koçak, 1983 | Collard Dart |
| Agrochola (Sunira) bicolorago Guenée, 1852 | Bicolored Sallow |
| Agrochola (Sunira) decipiens Grote, 1881 | |
| Agrochola (Sunira) verberata Smith, 1904 | |
| Agrotis (Agrotis) ipsilon Hufnagel, 1766 | Black cutworm |
| Agrotis (Agrotis) segetum Denis & Schi..., 1775 | Black cutworm |
| Agrotis albicosta Tutt, 1892 | |
| Agrotis antica Crabo & Lafo..., 2004 | Burrowing Toads |
| Agrotis apicalis (Herrich-Schä..., 1868) | ⇒ Dichagyris grotei Franclemont ..., 1983 |
| Agrotis atha (Strecker, 1898) | ⇒ Agrotis venerabilis Walker, 1856 |
| Agrotis aurulenta | |
| Agrotis brevipennis | |
| Agrotis catenula | |
| Agrotis daedalus Smith, 1890 | |
| Agrotis gladiaria Morris, 1874 | Clay-backed Cutworm |
| Agrotis ingeniculata | |
| Agrotis ingrata (Butler, 1878) | ⇒ Agrotis segetum Denis & Schi..., 1775 |
| Agrotis lutulenta | |
| Agrotis malefida Guenée, 1852 | Pale-sided Cutworm |
| Agrotis medialis | |
| Agrotis munda Walker, 1856 | Brown cutworm |
| Agrotis muscosa | |
| Agrotis obliqua Smith, 1903 | Oblique Dart |
| Agrotis oblongistigma | |
| Agrotis orthogonia Morris, 1876 | Pale Western Cutworm |
| Agrotis pallipennis | |
| Agrotis poliochroa Hampson, 1906 | |
| Agrotis redimicula Morrison, 1874 | |
| Agrotis rileyana Morrison, 1875 | |
| Agrotis robustior Smith, 1899 | |
| 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 |
| Amphipoea americana Speyer, 1875 | American Ear |
| Amphipoea interoceanica Smith, 1899 | Interoceanic Ear |
| Amphipoea senilis Smith, 1894 | |
| Anaplectoides prasina Denis & Schi..., 1775 | Green Arches |
| Anaplectoides pressus Grote, 1874 | Dappled Dart |
| Anarta (Anarta) myrtilli Linnaeus, 1761 | Beautiful Yellow Underwing |
| Anarta (Calocestra) farnhami Grote, 1873 | |
| Anarta (Calocestra) melanopa (Thunberg, 1791) | ⇒ Hadula melanopa Thunberg, 1791 |
| Anarta (Calocestra) trifolii (Hufnagel, 1766) | ⇒ Nutmeg trifolii Hufnagel, 1766 |
| Anarta (Discestra) farnhami Grote, 1873 | |
| Anarta (Discestra) trifolii Hufnagel, 1766 | |
| Anarta crotchii Grote, 1880 | |
| Anarta dolosa | |
| Anarta hamata McDunnough, 1930 | Spruce snail |
| Anarta luteola (Grote & Robi..., 1865) | ⇒ Coranarta luteola Grote & Robi..., 1865 |
| Anarta macrostigma Lafontaine &..., 1987 | |
| Anarta mutata Dod, 1913 | Mutant Moth |
| Anarta nigrolunata Packard, 1867 | |
| Anarta obesula Smith, 1904 | |
| Anarta oregonica Grote, 1881 | |
| Anathix aggressa Smith, 1907 | Aggressive Sallow |
| Anathix puta Grote, 1868 | Bay whiff |
| Andropolia contacta Walker, 1856 | Canadian Giant |
| Andropolia dispar (Smith, 1900) | ⇒ Fishia dispar Smith, 1900 |
| Andropolia diversilineata Grote, 1877 | Threespot flounder |
| Andropolia olorina Grote, 1876 | |
| Andropolia theodori Grote, 1878 | |
| Anhimella contrahens Walker, 1860 | United Cutworm |
| Anicla beata Grote, 1883 | |
| Anicla espoetia Dyar, 1910 | |
| Anicla exuberans J. B. Smith, 1898 | Exuberant Dart Moth |
| Anicla ignicans Guenée, 1852 | |
| Anicla illapsa Walker, 1857 | Snowy Dart |
| Anicla infecta Ochsenheimer, 1816 | Green Cutworm |
| Anicla mus Lafontaine, 2004 | |
| Anicla tenuescens Smith, 1890 | |
| Anicla tepperi Smith, 1888 | Black-girdled Dart Moth |
| Anorthodes tarda (Guenée, 1852) | ⇒ Athetis tarda Guenée, 1852 |
| Anorthodes triquetra Grote, 1883 | |
| Apamea (Apamea) lateritia (Hufnagel, 1766) | ⇒ Apamea scoparia Mikkola, Mus..., 2000 |
| Apamea (Apamea) sordens Hufnagel, 1766 | Atlantic sole |
| Apamea (Apamea) zeta Treitschke, 1825 | Exile |
| Apamea alia Guenée, 1852 | Fox Apamea |
| Apamea alticola (Smith, 1891) | ⇒ Apamea zeta Treitschke, 1825 |
| Apamea amputatrix Fitch, 1857 | Yellow Headed Cutworm Moth |
| Apamea antennata Smith, 1890 | Lizard beetles |
| Apamea atrosuffusa Barnes & McD..., 1913 | California tonguefish |
| Apamea auranticolor Grote, 1873 | |
| Apamea burgessi Morrison, 1874 | Burgess' Apamea Moth |
| Apamea cariosa Guenée, 1852 | Nondescript Dagger Moth |
| Apamea cinefacta (Grote, 1881) | ⇒ Apamea sordens Hufnagel, 1766 |
| Apamea cogitata (Smith, 1891) | ⇒ Apamea dubitans Walker, 1856 |
| Apamea commoda Walker, 1857 | Florida Bog Frog |
| Apamea conradi (Grote, 1879) | ⇒ Apamea inficita Walker, 1857 |
| 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 fergusoni Mikkola and ..., 2009 | Sevenband tonguefish |
| Apamea geminimacula Dyar, 1904 | |
| Apamea helva Grote, 1875 | Yellow Three Spot |
| 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 niveivenosa Grote, 1879 | Filefishes |
| Apamea occidens Grote, 1878 | Western Apamea |
| Apamea perpensa Grote, 1881 | |
| Apamea plutonia Grote, 1883 | Dusky Apamea |
| Apamea popofensis (Walker, 1857) | ⇒ Apamea inficita Walker, 1857 |
| Apamea quinteri Mikkola and ..., 2009 | Sevenband tonguefish |
| Apamea scoparia Mikkola, Mus..., 2000 | Brown tonguesole |
| Apamea semilunata (Grote, 1881) | ⇒ Apamea inordinata Morrison, 1875 |
| Apamea spaldingi Smith, 1909 | Spalding´s Apamea |
| Apamea unita Smith, 1904 | |
| Apamea vulgaris Grote & Robi..., 1866 | Common Apamea |
| Apamea vultuosa Grote, 1875 | Airy Apamea |
| Apamea xylodes Mikkola and ..., 2009 | Sevenband tonguefish |
| Aporophyla orthostigma Stephens, 1829 | |
| Archanara alameda (Smith, 1903) | ⇒ Capsula alameda Smith, 1903 |
| Archanara oblonga Grote, 1882 | Oblong Sedge Borer |
| Archanara subflava Grote, 1882 | Subflava Sedge Borer |
| Aseptis binotata Walker, 1865 | Rusty Shoulder Knot Moth |
| Aseptis characta Grote, 1880 | |
| Aseptis dilara Strecker, 1899 | Kamchatka flounder |
| Aseptis fumosa Grote, 1879 | |
| Aseptis geminimacula Dyar, 1904 | |
| Aseptis genetrix Grote, 1878 | |
| Aseptis harpi Crabo & Must..., 2018 | |
| Aseptis susquesa Smith, 1908 | |
| Athetis euxoa Krüger, 2001 | |
| Athetis miranda (Grote, 1873) | ⇒ Proxenus miranda Grote, 1873 |
| Athetis rhigognostis Krüger, 2001 | |
| Bellura densa Walker, 1865 | Pickerelweed borer |
| Bellura gortynoides Walker, 1865 | Green milkweed |
| Bellura obliqua Walker, 1865 | Cattail Borer |
| Blepharita ducta Grote, 1878 | |
| Blepharita tenera Smith, 1900 | |
| Brachylomia albidior (Strecker, 1898) | ⇒ Brachylomia populi Strecker, 1898 |
| Brachylomia algens Grote, 1878 | |
| Brachylomia discinigra Walker, 1856 | Black-disc Sallow |
| Brachylomia discolor Smith, 1904 | |
| Brachylomia populi Strecker, 1898 | Reticulate spikefish |
| Bryolymnia marginata Schaus, 1911 | |
| Bryolymnia semifascia J.B. Smith, 1900 | Half-banded Bryolymnia |
| Calocampa brucei | |
| Caradrina (Platyperigea) montana Bremer, 1861 | Civil Rustic |
| Caradrina camina Smith, 1894 | Filefishes |
| Caradrina civica (Grote, 1883) | ⇒ Caradrina montana Bremer, 1861 |
| Caradrina extima (Walker, 1865) | ⇒ Caradrina montana Bremer, 1861 |
| Caradrina mantalini | |
| Caradrina meralis Morrison, 1875 | Rare Sand Quaker |
| Celaena reniformis (Grote, 1874) | ⇒ Helotropha reniformis Grote, 1874 |
| Chersotis juncta Grote, 1878 | Stirrup and Spear Dart Moth |
| Chorizagrotis auxiliaris (Grote, 1873) | ⇒ Euxoa auxiliaris Grote, 1873 |
| Chorizagrotis inconcinna Harvey, 1875 | |
| Chytonix cyanochlora Schaus, 1911 | |
| Chytonix elegans Schaus, 1911 | |
| Chytonix mniochroa Hampson, 1908 | |
| Chytonix palliatricula Guenée, 1852 | Cloaked Marvel |
| Chytonix semifascia | |
| Chytonix splendens Druce, 1890 | |
| Copablepharon absidum Harvey, 1875 | Columbia Dune Moth |
| Copablepharon albisericea Blanchard, 1976 | Ocean triggerfish |
| Copablepharon album (Harvey, 1876) | ⇒ Protogygia album Harvey, 1876 |
| Copablepharon canariana McDunnough, 1932 | Cushion draba |
| Copablepharon flavum Fauske & Laf..., 2004 | Ground Coqui |
| Copablepharon grandis Strecker, 1875 | Pale Yellow Dune Moth |
| Copablepharon longipenne Grote, 1882 | Coffee cliffbrake |
| Copablepharon mutans Crabo & Lafo..., 2004 | Burrowing Toads |
| Copablepharon opleri Lafontaine, 2004 | |
| Copablepharon pictum Fauske & Laf..., 2004 | Ground Coqui |
| Copablepharon spiritum Crabo & Fauske, 2004 | Leiopelmatids |
| Copablepharon viridisparsa Dod, 1916 | Black durgon |
| Coranarta luteola Grote & Robi..., 1865 | Halibuts |
| Cosmia (Calymnia) calami Harvey, 1876 | American Dun Bar |
| Cosmia (Calymnia) elisae Lafontaine &..., 2003 | Black triggerfish |
| Cosmia (Calymnia) epipaschia Grote, 1883 | |
| Cosmia (Calymnia) praeacuta Smith, 1894 | Filefishes |
| Crassivesica bochus (Morrison, 1874) | ⇒ Euxoa bochus Morrison, 1874 |
| Crocigrapha normani Grote, 1874 | Climbing cherry cutworm |
| Dargida diffusa Walker, 1856 | Wheat Head Armyworm |
| Dargida procinctus Grote, 1873 | Girdler Moth |
| Dargida tetera Smith, 1902 | Flat cardiapod |
| Diarsia dislocata J.B. Smith, 1904 | Dislocated Dart |
| Diarsia rosaria Grote, 1878 | Rosey Dart |
| Dichagyris grandipennis Grote, 1883 | |
| Dichagyris grotei Franclemont ..., 1983 | |
| Dichagyris longidens J.B. Smith, 1890 | |
| Dichagyris ruckesi Barnes & Ben..., 1927 | Smallmouth flounder |
| Dichagyris variabilis Grote, 1874 | Yellow Dart |
| Discestra crotchii (Grote, 1880) | ⇒ Anarta crotchii Grote, 1880 |
| Discestra farnhami (Grote, 1873) | ⇒ Anarta farnhami Grote, 1873 |
| Discestra hamata (McDunnough, 1930) | ⇒ Anarta hamata McDunnough, 1930 |
| Discestra mutata (Dod, 1913) | ⇒ Anarta mutata Dod, 1913 |
| Discestra obesula (Smith, 1904) | ⇒ Anarta obesula Smith, 1904 |
| Discestra oregonica (Grote, 1881) | ⇒ Anarta oregonica Grote, 1881 |
| Dypterygia ordinarius Butler, 1879 | |
| Dypterygia rozmani Berio, 1974 | American Bird'S-Wing |
| Egira crucialis Harvey, 1875 | |
| Egira curialis Grote, 1873 | Citrus cutworm |
| Egira dolosa Grote, 1880 | Grieving Woodling |
| Egira perlubens Grote, 1881 | Brown Woodling |
| Egira rubrica Harvey, 1878 | Bridle triggerfish |
| Egira simplex Walker, 1865 | |
| Egira variabilis (Smith, 1891) | ⇒ Egira variolosus Gyulai , L. ..., 2011 |
| Elaphria agrotina Guenée, 1852 | Agrotina Midget |
| Elaphria alapallida Pogue & Sull..., 2003 | Pale-winged Midget |
| Elaphria chalcedonia Hübner, 1808 | Chalcedonia Midget |
| Elaphria deltoides Möschler, 1880 | Cutworm moth |
| Elaphria festivoides Guenée, 1852 | Festive Midget |
| Elaphria marmorata Schaus, 1894 | |
| Elaphria pallescens Hampson, 1909 | |
| Elaphria phlegyas Schaus, 1914 | |
| Elaphria pulchra Druce, 1889 | |
| Elaphria rubripicta Hampson, 1909 | |
| Elaphria subobliqua Walker, 1858 | |
| Elaphria tenebrosa Dognin, 1907 | |
| Enargia decolor Walker, 1858 | Aspen Twoleaf Tier |
| Enargia fausta B.C. Schmidt, 2010 | |
| Enargia infumata Grote, 1874 | Lesser Eyed Sallow |
| Enargia paleacea Esper, 1788 | Angle-striped Sallow |
| Engelhardtia ursina Smith, 1898 | |
| Epidemas cinerea Smith, 1894 | |
| Epidemas obscura (Smith, 1903) | ⇒ Epidemas obscurus Smith, 1903 |
| Epidemas obscurus Smith, 1903 | Scrawled soles |
| Epiglaea decliva Grote, 1874 | Sloping Sallow |
| Eremobina claudens Walker, 1857 | Dark-winged Quaker |
| Eriopyga hyposcota Hampson, 1905 | |
| Euagrotis beata (Grote, 1883) | ⇒ Anicla beata Grote, 1883 |
| Euagrotis espoetia Dyar, 1910 | |
| Euagrotis exuberans (Smith, 1898) | ⇒ Anicla exuberans J. B. Smith, 1898 |
| Euagrotis illapsa (Walker, 1857) | ⇒ Anicla illapsa Walker, 1857 |
| Euagrotis tepperi (Smith, 1887) | ⇒ Anicla tepperi Smith, 1888 |
| Eucirroedia pampina Guenée, 1852 | Scalloped Sallow |
| Eucoptocnemis dollii Grote, 1882 | |
| Eucoptocnemis fimbriaris Guenée, 1852 | Fringed Dart |
| Eueretagrotis perattentus Grote, 1874 | Two-Spot Dart |
| Euplexia benesimilis McDunnough, 1922 | American angle shade |
| 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 |
| Eurois praefixa (Morrison, 1875) | ⇒ Richia praefixa Morrison, 1875 |
| Euxoa (Chorizagrotis) adumbrata Eversmann, 1842 | Honeycomb filefish |
| Euxoa (Chorizagrotis) auxiliaris Grote, 1873 | Army cutworm |
| Euxoa (Chorizagrotis) inconcinna Harvey, 1875 | |
| Euxoa (Chorizagrotis) lidia (Stoll, 1782) | ⇒ Euxoa adumbrata Eversmann, 1842 |
| 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 (Orosagrotis) flavicollis Smith, 1888 | Yellow-collared Dart Moth |
| Euxoa (Orosagrotis) maimes Smith, 1903 | Southern peacock sole |
| Euxoa (Orosagrotis) manitobana McDunnough, 1925 | Desert draba |
| Euxoa (Orosagrotis) montana Morrison, 1875 | |
| 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 (Palaeoeuxoa) intermontana Lafontaine, 1975 | |
| Euxoa (Palaeoeuxoa) mimallonis Grote, 1873 | Ruddy-winged Dart |
| Euxoa (Pleonectopoda) altens McDunnough, 1946 | Whitestockinged black fly |
| Euxoa (Pleonectopoda) atomaris Smith, 1890 | |
| Euxoa (Pleonectopoda) aurulenta Smith, 1890 | Dune Cutworm |
| Euxoa (Pleonectopoda) churchillensis McDunnough, 1932 | |
| Euxoa (Pleonectopoda) lewisi Grote, 1873 | Hooked filefish |
| Euxoa (Pleonectopoda) pestula Smith, 1904 | |
| Euxoa (Pleonectopoda) pleuritica Grote, 1876 | Conglomerated Dart |
| Euxoa (Pleonectopoda) quebecensis Smith, 1900 | Quebec Dart |
| Euxoa (Pleonectopoda) scandens Riley, 1869 | White cutworm |
| 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 aequalis Harvey, 1876 | Kamchatka flounder |
| Euxoa agema Strecker, 1899 | Kamchatka flounder |
| Euxoa albipennis Grote, 1877 | White-striped Dart |
| Euxoa annulipes Smith, 1890 | |
| Euxoa antica Lafontaine, 1974 | |
| Euxoa atristrigata Smith, 1890 | |
| Euxoa aurantiaca Lafontaine, 1974 | |
| Euxoa auripennis Lafontaine, 1974 | |
| Euxoa basalis Grote, 1879 | |
| Euxoa bochus Morrison, 1874 | |
| Euxoa brevipennis Smith, 1887 | |
| Euxoa brunneigera Grote, 1876 | |
| Euxoa campestris Grote, 1875 | Flat Dart |
| 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 clausa McDunnough, 1923 | Openground draba |
| Euxoa comosa Morrison, 1876 | Spotted triggerfish |
| Euxoa cona Strecker, 1898 | Reticulate spikefish |
| Euxoa conjuncta Smith, 1890 | |
| Euxoa costata Grote, 1876 | |
| Euxoa dargo Strecker, 1898 | Reticulate spikefish |
| Euxoa declarata Walker, 1865 | Clear Dart |
| Euxoa detersa Walker, 1856 | Rubbed Dart |
| Euxoa difformis Smith, 1900 | |
| Euxoa dodi McDunnough, 1923 | Openground draba |
| Euxoa excogita (Smith, 1900) | ⇒ Euxoa brunneigera Grote, 1876 |
| Euxoa faulkneri Mustelin, 2000 | |
| Euxoa flavidens Smith, 1888 | |
| Euxoa foeminalis Smith, 1900 | |
| Euxoa franclemonti Lafontaine, 1987 | |
| Euxoa furtivus Smith, 1890 | |
| Euxoa hollemani Grote, 1874 | |
| Euxoa idahoensis Grote, 1878 | |
| Euxoa infausta Walker, 1865 | |
| Euxoa infracta Morrison, 1875 | |
| Euxoa inscripta Lafontaine, 1981 | Boxfishes |
| 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 loya (Smith, 1900) | ⇒ Euxoa brunneigera Grote, 1876 |
| Euxoa lucida Barnes & McD..., 1912 | Sand sole |
| Euxoa luctuosa Lafontaine, 1976 | Boxfish |
| Euxoa medialis Smith, 1888 | Median-banded Dart |
| Euxoa melana Lafontaine, 1975 | |
| Euxoa melura McDunnough, 1932 | Cushion draba |
| Euxoa misturata Smith, 1890 | |
| Euxoa mitis Smith, 1894 | Filefishes |
| Euxoa moerens Grote, 1883 | |
| Euxoa moxa (Smith, 1907) | ⇒ Euxoa quebecensis Smith, 1900 |
| Euxoa munis Grote, 1879 | |
| Euxoa murdocki Smith, 1890 | |
| Euxoa nevada Smith, 1900 | |
| Euxoa niveilinea Grote, 1882 | |
| Euxoa nostra Smith, 1890 | |
| Euxoa obeliscoides Guenée, 1852 | Obelisk Dart |
| Euxoa oblongistigma Smith, 1887 | |
| Euxoa olivalis Grote, 1879 | |
| Euxoa pallidimacula Lafontaine, 1987 | |
| Euxoa pallipennis Smith, 1887 | |
| Euxoa permixta McDunnough, 1940 | |
| Euxoa pimensis Barnes & McD..., 1910 | |
| Euxoa placida (Smith, 1893) | ⇒ Euxoa siccata Smith, 1893 |
| Euxoa plagigera Morrison, 1874 | |
| Euxoa pluralis Grote, 1878 | |
| Euxoa punctigera Walker, 1865 | |
| Euxoa quadridentata Grote & Robi..., 1865 | Halibuts |
| Euxoa redimicula Morrison, 1874 | Fillet Dart |
| Euxoa rockburnei Hardwick, 1973 | Honeycomb cowfish |
| Euxoa rufula Smith, 1887 | Mountain Dart Moth |
| Euxoa satiens Smith, 1890 | |
| Euxoa satis Harvey, 1876 | |
| Euxoa servita Smith, 1895 | |
| Euxoa servitus (Smith, 1895) | ⇒ Euxoa servita Smith, 1895 |
| Euxoa setonia McDunnough, 1927 | Lake Tahoe draba |
| Euxoa siccata Smith, 1893 | |
| Euxoa silens Grote, 1875 | Silent Dart |
| Euxoa stigmatalis Smith, 1900 | |
| Euxoa teleboa Smith, 1890 | |
| Euxoa terrenus Smith, 1900 | |
| Euxoa tessellata Harris, 1841 | Striped Cutworm |
| Euxoa tronella (Smith, 1903) | ⇒ Euxoa tronellus Smith, 1903 |
| Euxoa tronellus Smith, 1903 | Southern peacock sole |
| Euxoa velleripennis Grote, 1874 | Fleece-winged Dart |
| Euxoa xasta Barnes & McD..., 1910 | |
| Felita jaculifera | Dingy Cutworm Moth |
| Feltia (Feltia) herilis Grote, 1873 | Herald Dart |
| Feltia (Feltia) jaculifera Guenée, 1852 | Dingy cutworm |
| Feltia (Feltia) subgothica Haworth, 1810 | Gothic Dart |
| Feltia (Feltia) subterranea Fabricius, 1794 | Granulate Cutworm |
| Feltia (Feltia) tricosa Lintner, 1874 | Confused Dart Moth |
| Feltia (Trichosilia) mollis Walker, 1857 | Soft Dart |
| Feltia (Trichosilia) nigrita (Graeser, 1892) | ⇒ Trichosilia acarnea Graeser, 1892 |
| Fishia connecta Smith, 1894 | Filefishes |
| Fishia discors Grote, 1881 | Garden cutworm |
| Fishia dispar Smith, 1900 | |
| Fishia instruta (Smith, 1910) | ⇒ Fishia yosemitae Grote, 1873 |
| Fishia yosemitae Grote, 1873 | Dark Gray Fishia |
| Galgula hepara (Guenée, 1852) | ⇒ Galgula partita Guenée, 1852 |
| Galgula partita Guenée, 1852 | The Wedgeling |
| Globia oblonga Grote, 1882 | Oblong Sedge Borer Moth |
| Gonodes obliqua Druce, 1909 | |
| Gortyna anargyrea | |
| Gortyna ochroptena | |
| Graphiphora augur Fabricius, 1775 | Double Dart |
| Hada sutrina Grote, 1881 | Sutrina Moth |
| Hadena (Hadena) variolata Smith, 1888 | |
| Hadena bulgeri Felder & Rog..., 1874 | |
| Hadena capsularis Guenée, 1852 | Capsule Moth |
| Hadena circumvadis Smith, 1902 | Flat cardiapod |
| Hadena didonea | |
| Hadena ectrapela Smith, 1898 | |
| Hadena exornata (Walker, 1858) | ⇒ Apamea contradicta Smith, 1895 |
| Hadena lafontainei Troubridge &..., 2002 | |
| Hadena mimula Grote, 1883 | |
| Hadena noverca Grote, 1878 | |
| Hadena segregata Smith, 1893 | |
| Hadena virguncula | |
| Hadenella pergentilis Grote, 1883 | |
| Hampsonodes mastoides Hampson, 1910 | |
| Hecatera dysodea Denis & Schi..., 1775 | Moth |
| Helotropha reniformis Grote, 1874 | Kidney-spotted Rustic |
| Hemibryomima chryselectra Grote, 1880 | |
| Hemieuxoa rudens Harvey, 1874 | Hemieuxoa Moth |
| Heptagrotis phyllophora (Grote, 1874) | ⇒ Lycophotia phyllophora Grote, 1874 |
| Hexorthodes agrotiformis Grote, 1881 | |
| Hexorthodes trifascia (Smith, 1891) | ⇒ Lacinipolia implicata McDunnough, 1937 |
| Hillia iris Zetterstedt, 1839 | Iris Rover |
| Hillia maida Dyar, 1904 | Plain Rover Moth |
| Homoglaea carbonaria Harvey, 1876 | |
| 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 gigantoides Barnes & McD..., 1912 | Sharp-headed sole |
| Homorthodes hanhami Barnes & McD..., 1911 | Fringed filefish |
| Homorthodes mania Strecker, 1899 | Kamchatka flounder |
| Homorthodes reliqua Smith, 1899 | |
| Hydraecia medialis J.B. Smith, 1892 | Planehead filefish |
| Hydraecia obliqua Harvey, 1876 | Norwegian topknot |
| Hydraecia perobliqua Hampson, 1910 | False Rosy Rustic Moth |
| Hydraecia stramentosa Guenée, 1852 | |
| Hydroeciodes juvenilis Grote, 1881 | |
| Hydroeciodes serrata Grote, 1880 | |
| Hypocoena rufostrigata Packard, 1806 | Brown-streaked Rustic |
| Hypotrix parallela Grote, 1883 | |
| Hypotrix trifascia J.B. Smith, 1891 | Lizard beetles |
| 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 cuneata Grote, 1873 | Cuneate Arches |
| Lacinipolia incurva Smith, 1887 | |
| Lacinipolia laudabilis Guenée, 1852 | Laudable Arches |
| Lacinipolia lepidula Smith, 1887 | |
| Lacinipolia longiclava Smith, 1891 | Lizard beetles |
| Lacinipolia lorea Guenée, 1852 | Bridled Arches |
| Lacinipolia lustralis Grote, 1875 | The Lustral Mamestra |
| Lacinipolia meditata Grote, 1873 | Pink-backed cutworm |
| Lacinipolia naevia Smith, 1898 | |
| Lacinipolia olivacea Morrison, 1874 | Olive Arches |
| Lacinipolia palilis Harvey, 1875 | |
| Lacinipolia pensilis Grote, 1874 | |
| Lacinipolia renigera Stephens, 1829 | Bristly Cutworm |
| Lacinipolia roseosuffusa Smith, 1900 | |
| Lacinipolia sareta (Smith, 1906) | ⇒ Lacinipolia vicina Grote, 1874 |
| Lacinipolia stenotis Hampson, 1903 | Blunthead puffer |
| Lacinipolia strigicollis Wallengren, 1860 | Collared Arches Moth |
| Lacinipolia teligera Morrison, 1875 | |
| Lacinipolia umbrosa Smith, 1887 | |
| Lacinipolia vicina Grote, 1874 | Neighborly Arches |
| Lacinipolia vittula Grote, 1882 | |
| Lasionycta benjamini Hill, 1927 | Bandtail puffer |
| Lasionycta coloradensis Richards, 1943 | Botete |
| Lasionycta conjugata Smith, 1899 | Dart-poison Frogs |
| Lasionycta discolor (Smith, 1899) | ⇒ Lasionycta klotsi Richards, 1943 |
| Lasionycta dolosa Barnes & Ben..., 1923 | Planehead filefish |
| Lasionycta fergusoni Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta impingens (Walker, 1857) | ⇒ Lasiestra impingens Walker, 1857 |
| Lasionycta infuscata (Smith, 1899) | ⇒ Lasionycta pulverea Crabo & Lafo..., 2009 |
| Lasionycta klotsi Richards, 1943 | |
| Lasionycta leucocycla Staudinger, 1857 | Dart-poison Frogs |
| Lasionycta luteola Smith, 1894 | Dart Poison Frog |
| Lasionycta perplexa (Smith, 1887) | ⇒ Lasionycta perplexella Crabo & Lafo..., 2009 |
| Lasionycta promulsa (Morrison, 1875) | ⇒ Lasionycta pulverea Crabo & Lafo..., 2009 |
| Lasionycta quadrilunata (Grote, 1874) | ⇒ Lasionycta sasquatch Crabo & Lafo..., 2009 |
| Lasionycta staudingeri (Aurivillius, 1891) | ⇒ Anarta zemblica Hampson, 1903 |
| Lasionycta subalpina Crabo & Lafo..., 2009 | Cuban Treefrog |
| Lasionycta subfuscula (Grote, 1873) | ⇒ 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 humidicola Guenée, 1852 | Sugarcane Budworm Moth |
| Leucania imperfecta Smith, 1894 | |
| Leucania insueta Guenée, 1852 | Heterodox Wainscot |
| Leucania latiuscula (Herrich-Schä..., 1868) | ⇒ Leucania subpunctata Harvey, 1875 |
| Leucania multilinea Walker, 1856 | Engelmann's milkweed |
| Leucania neptis | |
| Leucania phragmitidicola Guenée, 1852 | Phragmites Wainscot |
| Leucania rubripallens Smith, 1902 | |
| Leucania stolata Smith, 1894 | |
| Litholomia napaea Morrison, 1874 | False Pinion |
| Lithomoia germana Morrison, 1874 | American Brindle |
| Lithophane amanda Smith, 1900 | Amanda'S Pinion Moth |
| Lithophane antennata Walker, 1858 | Ashen Pinion |
| Lithophane atara Smith, 1909 | |
| Lithophane bethunei Grote & Robi..., 1868 | Bay whiff |
| Lithophane contenta Grote, 1880 | Brown leatherjacket |
| Lithophane georgii Grote, 1875 | George´s Pinion |
| Lithophane innominata Smith, 1893 | Nameless Pinion |
| Lithophane itata Smith, 1899 | |
| Lithophane laticinerea Grote, 1874 | Broad Ashen Pinion |
| Lithophane longior Smith, 1899 | |
| Lithophane patefacta Walker, 1858 | Dimorphic Pinion |
| Lithophane ponderosa J.T. Troubri..., 2003 | Lemon blaasop |
| Lithophane torrida Smith, 1899 | |
| Lithophane vanduzeei Barnes, 1928 | |
| Lomilysis discolor (Smith, 1904) | ⇒ Brachylomia discolor Smith, 1904 |
| Lophoceramica artega Barnes, 1907 | |
| Luperina innota (Smith, 1908) | ⇒ Resapamea mammuthus L.G. Crabo, 2013 |
| Luperina passer (Guenée, 1852) | ⇒ Resapamea passer Guenée, 1852 |
| Luperina stipata (Morrison, 1875) | ⇒ Resapamea stipata Morrison, 1875 |
| Luperina venosa (Smith, 1903) | ⇒ Resapamea venosa J.B. Smith, 1903 |
| Magusa divaricata (Grote, 1874) | ⇒ Magusa orbifera Walker, 1857 |
| Magusa orbifera Walker, 1857 | Orbed Narrow-wing |
| Mamestra altua | |
| Mamestra artesta | |
| Mamestra configurata Walker, 1856 | Bertha Armyworm |
| Mamestra curialis Smith, 1887 | Scripted Arches |
| Mamestra determinata | |
| Mamestra fuscolutea | |
| Mamestra hadeniformis | |
| Mamestra languida | |
| Mamestra longiclava | |
| Mamestra megarena | |
| Mamestra naevia | |
| Mamestra olivacea | |
| Mamestra orbiculata | |
| Mamestra ortruda | |
| Mamestra plicata | |
| Mamestra vau-media | |
| Melanchra adjuncta Boisduval, 1841 | Hitched Arches |
| Melanchra assimilis Morrison, 1874 | Black Arches |
| Melanchra picta Harris, 1841 | Zebra caterpillar |
| Melanchra pulverulenta Smith, 1888 | |
| Mesapamea fractilinea Grote, 1874 | Broken-lined Brocade |
| Mesembragrotis ruckesi (Barnes & Ben..., 1927) | ⇒ Dichagyris ruckesi Barnes & Ben..., 1927 |
| Mesogona olivata Harvey, 1874 | False-eye toby |
| 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 |
| Neleucania bicolorata Grote, 1881 | |
| Neleucania niveicosta Smith, 1902 | |
| Neleucania patricia Grote, 1880 | |
| Neleucania praegracilis Grote, 1877 | Threespot flounder |
| Neoligia subjuncta Smith, 1898 | Connected Brocade |
| Neoligia tonsa Grote, 1880 | |
| Nephelodes carminata Smith, 1890 | |
| Nephelodes mendica Barnes & Lin..., 1921 | Chinese brill |
| Nephelodes minians Guenée, 1852 | Bronzed Cutworm |
| Noctua exuberans | |
| Noctua pronuba Linnaeus, 1758 | Common yellow underwing moth |
| Ochropleura implecta Lafontaine, 1998 | American Flame-shouldered Dart |
| Oligia egens Walker, 1857 | Neumogens Quaker Moth |
| Oligia exhausta (Smith, 1903) | ⇒ Neoligia exhausta Smith, 1903 |
| Oligia fractilinea (Grote, 1874) | ⇒ Mesapamea fractilinea Grote, 1874 |
| Oligia illocata (Walker, 1857) | ⇒ Fishia nigrescens Hammond & L...., 2013 |
| Oligia modica Guenée, 1852 | Black Banded Brocade |
| Oligia rampartensis (Dyar, 1923) | ⇒ Oligia violacea Grote, 1881 |
| Oligia tonsa (Grote, 1880) | ⇒ Neoligia tonsa Grote, 1880 |
| Oligia violacea Grote, 1881 | |
| Oria insularis Herrich-Schä..., 1898 | |
| Orthodes crenulata (Butler, 1890) | ⇒ Orthodes majuscula Herrich-Schä..., 1868 |
| Orthodes detracta Walker, 1857 | Disparaged Arches |
| Orthodes noverca Grote, 1878 | |
| Orthodes obscura Smith, 1888 | Obscure Quaker |
| Orthosia aggressa | |
| Orthosia flaviannula Smith, 1899 | |
| Orthosia hibisci Guenée, 1852 | Green Fruitworm |
| Orthosia pacifica Harvey, 1874 | False-eye toby |
| Orthosia revicta Morrison, 1875 | Rusty whitesided caterpillar |
| Orthosia segregata Smith, 1891 | |
| Pachnobia elevata | |
| Pachnobia imperita Hübner, 1827 | |
| Pachnobia perquiritata Morrison, 1874 | |
| Papaipema baptisiae Bird, 1902 | Indigo Stem Borer |
| Papaipema harrisii Grote, 1881 | Cow Parsnip Borer Moth |
| Papaipema inquaesita Grote & Robi..., 1868 | Sensitive Fern Borer |
| Papaipema nebris Guenée, 1852 | Common stalk borer |
| Papaipema nelita Strecker, 1898 | Coneflower Borer |
| Papaipema rutila Guenée, 1852 | Mayapple Borer |
| Papaipema verona Smith, 1899 | Verona Borer |
| 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 exsertistigma Morrison, 1874 | |
| Parabagrotis formalis Grote, 1874 | |
| Paradiarsia littoralis Packard, 1867 | Labrador Dart Moth |
| Parastichtis suspecta Hübner, 1817 | Squirrel Treefrog |
| Peridroma saucia Hübner, 1808 | Pearly Underwing |
| Perigonica eldana Smith, 1911 | |
| Perigonica fulminans Smith, 1890 | |
| Perigonica tertia Dyar, 1902 | |
| Phuphena multilinea Schaus, 1911 | |
| Platypolia anceps Stephens, 1850 | |
| Platypolia contadina Smith, 1894 | Filefishes |
| Platypolia loda Strecker, 1898 | Reticulate spikefish |
| Polia (Chera) richardsoni Curtis, 1835 | |
| Polia connecta | |
| Polia discalis Grote, 1877 | Threespot flounder |
| Polia dispar | |
| Polia imbrifera Guenée, 1852 | Cloudy Arches |
| Polia nugatis Smith, 1898 | |
| Polia piniae Buckett & Bauer, 1966 | Burrfishes |
| Polia propodea McCabe, 1980 | |
| Polia purpurissata Grote, 1864 | Purple Arches |
| Polia resoluta | |
| Polia rogenhoferi Möschler, 1870 | Burrfishes |
| Prognorisma substrigata Smith, 1895 | Bottom-striped Dart |
| Pronoctua craboi Lafontaine, 1998 | |
| Pronoctua peabodyae (Dyar, 1903) | ⇒ Pronoctua typica Smith, 1894 |
| Pronoctua typica Smith, 1894 | |
| Proragrotis longidens (Smith, 1890) | ⇒ Dichagyris longidens J.B. Smith, 1890 |
| Protexarnis balanitis Grote, 1873 | |
| Protogygia album Harvey, 1876 | |
| Protogygia elevata Smith, 1891 | Lizard beetles |
| Protogygia enalaga McDunnough, 1932 | Cushion draba |
| Protogygia lagena Grote, 1875 | |
| Protogygia pallida Fauske & Laf..., 2004 | |
| Protogygia postera Fauske & Laf..., 2004 | |
| Protogygia querula Dod, 1915 | Querula Dart |
| Protogygia rufescens Fauske & Laf..., 2004 | |
| Protolampra rufipectus Morris, 1874 | Red-breasted Dart Moth |
| Protoperigea posticata Harvey, 1875 | |
| Protorthodes alfkenii Grote, 1895 | Pacific burrfish |
| Protorthodes curtica Smith, 1890 | |
| Protorthodes eureka Barnes & Ben..., 1927 | Bermuda cowfish |
| Protorthodes incincta Morrison, 1874 | Banded Quaker |
| Protorthodes oviduca Guenée, 1852 | Ruddy Quaker |
| Protorthodes rufula Grote, 1874 | Rufous Quaker |
| Protorthodes utahensis (Smith, 1887) | ⇒ Protorthodes incincta Morrison, 1874 |
| Proxenus miranda Grote, 1873 | Miranda Moth |
| Pseudanarta caeca Dod, 1913 | Blotched porcupinefish |
| Pseudanarta crocea H. Edwards, 1875 | Sanddabs |
| Pseudanarta damnata Franclemont, 1941 | |
| Pseudanarta exasperata Franclemont, 1941 | |
| Pseudanarta flava Grote, 1874 | |
| Pseudanarta flavidens Grote, 1879 | |
| Pseudanarta perplexa Franclemont, 1941 | |
| Pseudanarta pulverulenta Smith, 1891 | Lizard beetles |
| Pseudanarta singula Grote, 1880 | |
| Pseudanthoecia tumida Grote, 1880 | |
| Pseudeustrotia carneola Guenée, 1852 | Pink Barred Lithacodia |
| Pseudobryomima fallax Hampson, 1905 | |
| Pseudohadena vulnerea Grote, 1883 | |
| Pseudohermonassa ononensis Bremer, 1861 | |
| Pseudorthodes puerilis Grote, 1874 | |
| Pseudorthodes virgula Grote, 1883 | |
| Pseudorthosia variabilis (Grote, 1874) | ⇒ Dichagyris variabilis Grote, 1874 |
| Pseudoseptis grandipennis (Grote, 1883) | ⇒ Dichagyris grandipennis Grote, 1883 |
| Resapamea passer Guenée, 1852 | Dock Rustic |
| Rhizagrotis albalis Grote, 1878 | |
| Rhizagrotis cloanthoides Grote, 1880 | |
| Rhizagrotis stylata J. B. Smith, 1893 | |
| Rhyacia (Rhyacia) clemens (Smith, 1890) | ⇒ Rhyacia quadrangula Zetterstedt, 1839 |
| Rhyacia (Rhyacia) quadrangula Zetterstedt, 1839 | |
| Rhynchagrotis exsertistigma Morris, 1874 | |
| Richia albicosta (Smith, 1888) | ⇒ Striacosta albicosta Smith, 1888 |
| Richia chortalis Harvey, 1875 | |
| Richia grotei (Franclemont ..., 1983) | ⇒ Dichagyris grotei Franclemont ..., 1983 |
| Richia parentalis Grote, 1879 | |
| Richia praefixa Morrison, 1875 | |
| Scotogramma addenda Barnes & Ben..., 1924 | |
| Scotogramma conjugata | |
| Scotogramma densa Smith, 1893 | |
| Scotogramma discolor | |
| Scotogramma fervida Barnes & McD..., 1912 | Sand sole |
| Scotogramma harnardi Barnes & Ben..., 1924 | Khaki flounder |
| Scotogramma inconcinna Smith, 1887 | |
| Scotogramma infuscata | |
| Scotogramma orida Smith, 1903 | Southern peacock sole |
| Scotogramma sedilis | |
| Scotogramma submarina Grote, 1883 | |
| Scotogramma umbrosa | |
| Selicanis cinereola Smith, 1900 | Selicanis Moth |
| Setagrotis elata | |
| Setagrotis pallidicollis (Grote, 1880) | ⇒ Setagrotis vocalis Grote, 1879 |
| Setagrotis radiola Hampson, 1903 | |
| 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 velicava Lafontaine, 1998 | |
| Spiramater grandis (Guenée, 1841) | ⇒ Lacanobia grandis Guenée, 1852 |
| Spiramater lutra Guenée, 1852 | Otter Arches |
| Spodoptera albula Walker, 1857 | Costa Rican armyworm deactivated |
| Spodoptera androgea Stoll, 1780 | Andregea armyworm moth |
| Spodoptera dolichos Fabricius, 1794 | Dolichos Armyworm Moth |
| Spodoptera exigua Hübner, 1808 | African armyworm |
| Spodoptera frugiperda Smith & Abbot, 1797 | Corn leaf worm |
| Spodoptera latifascia Walker, 1856 | Garden Armyworm |
| Spodoptera ornithogalli Guenée, 1852 | Cotton Cutworm |
| Spodoptera praefica Grote, 1875 | Western yellow-striped armyworm |
| Stauropides persimilis Hampson, 1909 | |
| Stretchia muricina Grote, 1876 | |
| Stretchia plusiaeformis H. Edwards, 1874 | Balloonfish |
| Stretchia prima Smith, 1891 | Pacific halibut |
| Stretchia variabilis | |
| 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 |
| Tesagrotis atrifrons Grote, 1873 | |
| Tesagrotis corrodera Smith, 1910 | Largescale tonguefish |
| Tesagrotis piscipellis Grote, 1878 | |
| Tholera americana Smith, 1894 | Filefishes |
| Trachea delicata Grote, 1874 | Delicate |
| Trichocerapoda oblita Grote, 1877 | Threespot flounder |
| Trichoclea decepta (Grote, 1883) | ⇒ Anarta decepta Grote, 1883 |
| Trichoclea fuscolutea (Smith, 1892) | ⇒ Sideridis fuscolutea Smith, 1892 |
| Trichoclea postica (Smith, 1891) | ⇒ Anarta decepta Grote, 1883 |
| Tricholita chipeta Barnes, 1904 | Foureyed sole |
| Tricholita fistula Harvey, 1878 | |
| Tricholita signata Walker, 1860 | Signate Quaker |
| Trichordestra dodii Smith, 1905 | Lacanobia dodii |
| Trichordestra legitima Grote, 1864 | Striped Garden Caterpilla |
| Trichordestra lilacina Harvey, 1874 | Aster Arches |
| Trichordestra liquida Grote, 1881 | |
| Trichordestra prodeniformis Smith, 1887 | |
| Trichordestra tacoma Strecker, 1900 | Tacoma Arches |
| Trichorthosia parallela (Grote, 1883) | ⇒ Hypotrix rubra J.D. Lafonta..., 2010 |
| Tridepia nova Smith, 1903 | Southern peacock sole |
| Trudestra hadeniformis Smith, 1894 | Filefishes |
| Ufeus plicatus Grote, 1878 | Folded Satyr |
| Ufeus satyricus Grote, 1873 | Brown Satyr Moth |
| Ufeus unicolor (Grote, 1878) | ⇒ Ufeus satyricus Grote, 1873 |
| Ulolonche consopita Grote, 1881 | |
| Ulolonche dilecta H. Edwards, 1884 | |
| Ulolonche disticha Morrison, 1875 | |
| Ulolonche fasciata Smith, 1888 | Crested blenny |
| Ulolonche marloffi Barnes & Ben..., 1924 | |
| Ulolonche orbiculata Smith, 1891 | Lizard beetles |
| Xanthopastis timais Cramer, 1782 | Convict Caterpillar |
| 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 (Pachnobia) speciosa Hübner, 1813 | |
| Xestia aequaeva glaucina Lafontaine &..., 1996 | |
| Xestia (Xestia) collina Boisduval, 1840 | |
| Xestia bolteri Smith, 1898 | |
| Xestia colorado Smith, 1891 | Lizard beetles |
| Xestia conchis Grote, 1879 | |
| Xestia homogena (Staudinger, 1871) | ⇒ Xestia rhaetica Staudinger, 1871 |
| Xestia leptophysa Boursin, 1963 | |
| Xestia oblata Morrison, 1875 | Rosy Dart |
| Xestia praevia Lafontaine, 1998 | Praevia Dart |
| Xestia smithii Snellen, 1896 | Smith'S Dart |
| Xylena (Lithomoia) solidaginis Hübner, 1803 | Golden-rod Brindle |
| 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 |
| Xylotype arcadia Barnes & Ben..., 1922 | Acadian Sallow |
