| Abagrotis alternata Grote, 1864 | Greater Red Dart |
| Abagrotis discoidalis Grote, 1876 | |
| 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 variata Grote, 1876 | |
| Abagrotis vittifrons Grote, 1864 | Pale-edged Dart Moth |
| Abrostola urentis Guenée, 1852 | Nettle Spectacle |
| Achatia evicta Grote, 1873 | |
| Acontia aprica (Hübner, 1802) | ⇒ Tarache aprica Hübner, 1808 |
| Acronicta americana Harris, 1841 | American Dagger |
| Acronicta cyanescens (Hampson, 1909) | ⇒ Acronicta lepusculina Guenée, 1852 |
| Acronicta dactylina Grote, 1874 | Alder Dagger |
| Acronicta fallax | Green Marvel |
| Acronicta fragilis Guenée, 1852 | Fragile Dagger |
| Acronicta funeralis Grote & Robi..., 1866 | Funerary Dagger |
| Acronicta furcifera (Guenée, 1852) | ⇒ Acronicta hasta Guenée, 1852 |
| Acronicta grisea (Walker, 1856) | ⇒ Acronicta indica Moore, 1857 |
| Acronicta hasta Guenée, 1852 | Cherry Dagger |
| Acronicta impressa Walker, 1856 | Impressed Dagger |
| Acronicta increta (Morrison, 1974) | ⇒ Acronicta intermedia Warren, 1909 |
| Acronicta interrupta Guenée, 1852 | Interrupted Dagger |
| Acronicta lepusculina Guenée, 1852 | Cottonwood Dagger |
| Acronicta lobeliae Guenée, 1852 | Great Oak Dagger |
| Acronicta longa Guenée, 1852 | Long-winged Dagger |
| Acronicta lupini Grote, 1873 | Lupine Dagger |
| Acronicta noctivaga Grote, 1864 | Dab |
| Acronicta oblinita J.E.Smith, 1797 | Smartweed Caterpillar |
| Acronicta radcliffei Harvey, 1875 | Radcliffe'S Dagger |
| Acronicta superans Guenée, 1852 | Mottled plum-tree dagger moth |
| Acronicta tritona Hübner, 1818 | Cape sole |
| Actebia (Actebia) fennica Tauscher, 1837 | Black Army Cutworm |
| Adita chionanthi (Abbot & Smith, 1797) | ⇒ Sympistis chons J.T.Troubridge, 2008 |
| Adonisea acutilinea Grote, 1878 | |
| Adonisea cumatilis Grote, 1865 | |
| Adonisea jaguarina Guenée, 1852 | |
| Agnorisma bugrai Koçak, 1983 | Collard Dart |
| Agrochola (Sunira) bicolorago Guenée, 1852 | Bicolored Sallow |
| Agrotis (Agrotis) ipsilon Hufnagel, 1766 | Black cutworm |
| Agrotis fatidica trifurcula | |
| Agrotis infusa Boisduval, 1832 | Bogong Moth |
| Agrotis obliqua Smith, 1903 | Oblique Dart |
| Agrotis poliochroa Hampson, 1906 | |
| Agrotis ruta Eversmann, 1851 | |
| Agrotis spinifera (Hübner, 1808) | ⇒ Agrotis ipsilon Hufnagel, 1766 |
| Agrotis venerabilis Walker, 1856 | Dusky Cutworm |
| Agrotis vetusta Walker, 1856 | Muted Dart |
| Agrotis volubilis Harvey, 1874 | Blackspotted flounder |
| Aletia oxygala (Grote, 1881) | ⇒ Mythimna oxygala Grote, 1881 |
| Alypia langtonii Couper., 1865 | Fireweed Caterpillar |
| Alypia ridingsii Grote, 1864 | Mountain Forester |
| Amphipoea americana Speyer, 1875 | American Ear |
| 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 (Calocestra) farnhami Grote, 1873 | |
| Anarta (Calocestra) trifolii (Hufnagel, 1766) | ⇒ Nutmeg trifolii Hufnagel, 1766 |
| Anarta luteola (Grote & Robi..., 1865) | ⇒ Coranarta luteola Grote & Robi..., 1865 |
| Anathix puta Grote, 1868 | Bay whiff |
| Andropolia aedon Grote, 1880 | |
| Andropolia contacta Walker, 1856 | Canadian Giant |
| Andropolia theodori Grote, 1878 | |
| Anorthodes tarda (Guenée, 1852) | ⇒ Athetis tarda Guenée, 1852 |
| Apamea (Apamea) remissa (Hübner, 1809) | ⇒ Condica vecors Guenée, 1852 |
| Apamea (Apamea) sordens Hufnagel, 1766 | Atlantic sole |
| Apamea (Apamea) unanimis Hübner, 1813 | Common Green Darner |
| Apamea (Apamea) zeta Treitschke, 1825 | Exile |
| Apamea alia Guenée, 1852 | Fox Apamea |
| Apamea amputatrix Fitch, 1857 | Yellow Headed Cutworm Moth |
| Apamea auranticolor Grote, 1873 | |
| Apamea cariosa Guenée, 1852 | Nondescript Dagger 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 devastator Brace, 1819 | Glassy cutworm |
| 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 occidens Grote, 1878 | Western Apamea |
| Apamea scoparia Mikkola, Mus..., 2000 | Brown tonguesole |
| Apamea spaldingi Smith, 1909 | Spalding´s Apamea |
| Apamea verbascoides Guenée, 1852 | Boreal Apamea |
| Apamea vultuosa Grote, 1875 | Airy Apamea |
| Apharetra dentata (Grote, 1875) | ⇒ Sympistis dentata Grote, 1875 |
| Archanara oblonga Grote, 1882 | Oblong Sedge Borer |
| Aseptis binotata Walker, 1865 | Rusty Shoulder Knot Moth |
| Aseptis characta Grote, 1880 | |
| Athetis miranda (Grote, 1873) | ⇒ Proxenus miranda Grote, 1873 |
| Autographa ampla Walker, 1857 | Broken-banded Y |
| Autographa bimaculata Stephens, 1832 | Double-spotted Spangle |
| Autographa californica Speyer, 1875 | Alfalfa Looper |
| Autographa mappa Grote & Robi..., 1868 | Bay whiff |
| Autographa metallica Grote, 1875 | Shanded Gold Spot |
| Autographa precationis Guenée, 1852 | Common Looper |
| Autographa pseudogamma Grote, 1875 | Delicate Silver Y |
| Autographa sansoni Dod, 1910 | Alberta Beauty |
| Bellura gortynoides Walker, 1865 | Green milkweed |
| Blepharita ducta Grote, 1878 | |
| Blepharita tenera Smith, 1900 | |
| Bomolocha edictalis (Walker, 1859) | ⇒ Hypena edictalis Walker, 1859 |
| Bomolocha palparia (Walker, 1861) | ⇒ Hypena palparia Walker, 1861 |
| Brachylomia algens Grote, 1878 | |
| Brachylomia discinigra Walker, 1856 | Black-disc Sallow |
| Brachylomia populi Strecker, 1898 | Reticulate spikefish |
| Bryocodia lepidula Grote, 1874 | |
| Calophasia lunula Hufnagel, 1766 | Atlantic sole |
| Caradrina (Caradrina) morpheus Hufnagel, 1766 | Atlantic sole |
| Caradrina (Platyperigea) montana Bremer, 1861 | Civil Rustic |
| Caradrina meralis Morrison, 1875 | Rare Sand Quaker |
| Catabena lineolata Walker, 1865 | Fine Lined Sallow |
| Celaena reniformis (Grote, 1874) | ⇒ Helotropha reniformis Grote, 1874 |
| Cerma olivacea (Smith, 1891) | ⇒ Cucullia convexipennis Grote & Robi..., 1868 |
| Chersotis juncta Grote, 1878 | Stirrup and Spear Dart Moth |
| Chorizagrotis auxiliaris (Grote, 1873) | ⇒ Euxoa auxiliaris Grote, 1873 |
| Chrysanympha formosa Grote, 1865 | Formosa Looper |
| Chytonix palliatricula Guenée, 1852 | Cloaked Marvel |
| Colocasia flavicornis Smith, 1884 | Saddled Yellowhorn |
| Colocasia propinquilinea Grote, 1873 | Close-banded Demas |
| Condica andrena Smith, 1911 | Rough triggerfish |
| Condica vecors Guenée, 1852 | Dusky Groundling |
| Copablepharon grandis Strecker, 1875 | Pale Yellow Dune Moth |
| Cosmia (Calymnia) elisae Lafontaine &..., 2003 | Black triggerfish |
| Crassivesica bochus (Morrison, 1874) | ⇒ Euxoa bochus Morrison, 1874 |
| Crocigrapha normani Grote, 1874 | Climbing cherry cutworm |
| Cryptocala acadiensis Bethune-Baker, 1869 | Catocaline dart |
| Cucullia anthocharis Boursin, 1969 | |
| Cucullia antipoda Strecker, 1877 | |
| Cucullia asteroides Guenée, 1852 | Asteroid |
| Cucullia convexipennis Grote & Robi..., 1868 | Aster cutworm |
| Cucullia dorsalis Smith, 1892 | Planehead filefish |
| Cucullia florea Guenée, 1852 | Gray Hooded Owlet |
| Cucullia intermedia Speyer, 1870 | Dusky Hooded Owlet |
| Cucullia luna Morrison, 1875 | |
| Cucullia omissa Dod, 1916 | Black durgon |
| Cucullia postera Guenée, 1852 | |
| Cucullia similaris Smith, 1892 | Planehead filefish |
| Cucullia speyeri Lintner, 1874 | Speyer'S Cucullia Moth |
| Dargida diffusa Walker, 1856 | Wheat Head Armyworm |
| Dargida procinctus Grote, 1873 | Girdler Moth |
| Diachrysia aereoides Grote, 1864 | Dark-Spotted Looper |
| Diachrysia balluca Geyer, 1832 | Green-patched Looper |
| Diarsia dislocata J.B. Smith, 1904 | Dislocated Dart |
| Diarsia rosaria Grote, 1878 | Rosey Dart |
| Diarsia rubifera Grote, 1875 | Red Dart |
| Discestra crotchii (Grote, 1880) | ⇒ Anarta crotchii Grote, 1880 |
| Discestra mutata (Dod, 1913) | ⇒ Anarta mutata Dod, 1913 |
| Dypterygia rozmani Berio, 1974 | American Bird'S-Wing |
| Egira alternans Walker, 1857 | Alternate Woodling |
| Egira curialis Grote, 1873 | Citrus cutworm |
| Egira dolosa Grote, 1880 | Grieving Woodling |
| Elaphria grata Hübner, 1827 | Grateful Midget |
| Enargia decolor Walker, 1858 | Aspen Twoleaf Tier |
| Enargia fausta B.C. Schmidt, 2010 | |
| Enargia infumata Grote, 1874 | Lesser Eyed Sallow |
| Epidemas cinerea Smith, 1894 | |
| Eriopyga monopis Dyar, 1914 | |
| Euagrotis exuberans (Smith, 1898) | ⇒ Anicla exuberans J. B. Smith, 1898 |
| Euagrotis tepperi (Smith, 1887) | ⇒ Anicla tepperi Smith, 1888 |
| Eucirroedia pampina Guenée, 1852 | Scalloped Sallow |
| Euclidina cuspidea Hübner, 1818 | |
| Eueretagrotis perattentus Grote, 1874 | Two-Spot Dart |
| Eugnorisma gaurax Pungeler, 1900 | |
| Eulonche lanceolaria Grote, 1875 | |
| Euplexia benesimilis McDunnough, 1922 | American angle shade |
| Eupsilia tristigmata Grote, 1877 | Brown fruitworm |
| Eupsilia vinulenta Grote, 1864 | Straight-Toothed Sallow |
| Eurois astricta Morrison, 1874 | Great brown dart |
| Eurois nigra Smith, 1894 | Great Black Dart Moth |
| Eurois occulta Linnaeus, 1758 | Great Brocade |
| Eutricopis nexilis Morrison, 1875 | White-spotted Midget |
| Euxoa (Chorizagrotis) adumbrata Eversmann, 1842 | Honeycomb filefish |
| Euxoa (Euxoa) ochrogaster Guenée, 1852 | Red-backed Cutworm |
| Euxoa (Heteroeuxoa) olivia Morrison, 1876 | Spotted triggerfish |
| Euxoa (Longivesica) divergens Walker, 1857 | Divergent Dart |
| Euxoa (Longivesica) messoria Harris, 1841 | Dark-sided Cutworm |
| Euxoa (Orosagrotis) flavicollis Smith, 1888 | Yellow-collared Dart Moth |
| Euxoa (Orosagrotis) manitobana McDunnough, 1925 | Desert draba |
| Euxoa (Orosagrotis) perpolita Morrison, 1876 | Polished Dart |
| Euxoa (Orosagrotis) ridingsiana Grote, 1875 | |
| Euxoa (Palaeoeuxoa) mimallonis Grote, 1873 | Ruddy-winged Dart |
| Euxoa (Palaeoeuxoa) shasta Lafontaine, 1975 | |
| Euxoa (Pleonectopoda) quebecensis Smith, 1900 | Quebec Dart |
| Euxoa (Pleonectopoda) scandens Riley, 1869 | White cutworm |
| Euxoa (Pleonectopoda) tristicula Morrison, 1875 | Early cutworm |
| Euxoa auripennis Lafontaine, 1974 | |
| Euxoa basalis Grote, 1879 | |
| 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 comosa Morrison, 1876 | Spotted triggerfish |
| Euxoa detersa Walker, 1856 | Rubbed Dart |
| Euxoa furtivus Smith, 1890 | |
| Euxoa idahoensis Grote, 1878 | |
| Euxoa infracta Morrison, 1875 | |
| Euxoa misturata Smith, 1890 | |
| Euxoa munis Grote, 1879 | |
| Euxoa obeliscoides Guenée, 1852 | Obelisk Dart |
| Euxoa olivalis Grote, 1879 | |
| Euxoa perexcellens Grote, 1875 | |
| Euxoa perierga dolomedes Boursin, 1940 | |
| Euxoa plagigera Morrison, 1874 | |
| Euxoa punctigera Walker, 1865 | |
| Euxoa rockburnei Hardwick, 1973 | Honeycomb cowfish |
| Euxoa satis Harvey, 1876 | |
| Euxoa servita Smith, 1895 | |
| Euxoa silens Grote, 1875 | Silent Dart |
| Euxoa terrenus Smith, 1900 | |
| Euxoa tessellata Harris, 1841 | Striped Cutworm |
| Faronta diffusa (Walker, 1856) | ⇒ Dargida diffusa Walker, 1856 |
| Feltia (Feltia) herilis Grote, 1873 | Herald Dart |
| Feltia (Feltia) jaculifera Guenée, 1852 | Dingy cutworm |
| Feltia (Feltia) subgothica Haworth, 1810 | Gothic Dart |
| Feltia (Feltia) tricosa Lintner, 1874 | Confused Dart Moth |
| Fishia discors Grote, 1881 | Garden cutworm |
| Fishia yosemitae Grote, 1873 | Dark Gray Fishia |
| Graphiphora augur Fabricius, 1775 | Double Dart |
| Hada sutrina Grote, 1881 | Sutrina Moth |
| Hadena goodelli Grote, 1875 | |
| Hadena segregata Smith, 1893 | |
| Harrisimemna trisignata Walker, 1856 | Harris Three-spot |
| Helicoverpa zea Boddie, 1850 | American bollworm |
| Heliothis (Heliothis) phloxiphaga Grote & Robi..., 1867 | Artematopid beetles |
| Hillia iris Zetterstedt, 1839 | Iris Rover |
| Homohadena badistriga (Grote, 1872) | ⇒ Sympistis badistriga Grote, 1872 |
| Homohadena stabilis (Smith, 1896) | ⇒ Sympistis stabilis Smith, 1895 |
| Homorthodes furfurata Grote, 1874 | Northern Scurfy Quaker |
| Hydraecia medialis J.B. Smith, 1892 | Planehead filefish |
| Hydraecia pallescens (Smith, 1899) | ⇒ Hydraecia medialis J.B. Smith, 1892 |
| Hydroeciodes serrata Grote, 1880 | |
| Hypocoena inquinata Guenée, 1852 | Sordid Wainscot |
| Hyppa brunneicrista Smith, 1902 | |
| Hyppa contrasta McDunnough, 1946 | Summer Hyppa Moth |
| Hyppa indistincta Smith, 1894 | |
| Hyppa xylinoides Guenée, 1852 | Common Hyppa |
| Ipimorpha pleonectusa Grote, 1873 | Blackcheeked aspen caterpillar |
| Lacanobia nevadae Grote, 1876 | Nevada Arches |
| Lacanobia radix Walker, 1856 | Barking Frogs |
| Lacanobia subjuncta Grote & Robi..., 1868 | Bay whiff |
| Lacinipolia acutipennis (Grote, 1880) | ⇒ Lacinipolia vicina Grote, 1874 |
| Lacinipolia anguina Grote, 1881 | Snaky Arches |
| Lacinipolia comis Grote, 1876 | |
| 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 pensilis Grote, 1874 | |
| Lacinipolia renigera Stephens, 1829 | Bristly Cutworm |
| Lacinipolia sareta (Smith, 1906) | ⇒ Lacinipolia vicina Grote, 1874 |
| Lacinipolia stricta Walker, 1865 | Brown Arches Moth |
| Lacinipolia strigicollis Wallengren, 1860 | Collared Arches Moth |
| Lacinipolia vicina Grote, 1874 | Neighborly Arches |
| Lasionycta conjugata Smith, 1899 | Dart-poison Frogs |
| Lasionycta leucocycla Staudinger, 1857 | Dart-poison Frogs |
| Lasionycta perplexa (Smith, 1887) | ⇒ Lasionycta perplexella Crabo & Lafo..., 2009 |
| Lasionycta secedens Walker, 1858 | |
| Lasionycta taigata Lafontaine, 1988 | |
| 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 |
| Lithacodia albidula (Guenée, 1852) | ⇒ Protodeltote albidula Guenée, 1852 |
| Lithacodia bellicula (Hübner, 1818) | ⇒ Deltote bellicula Hübner, 1818 |
| Lithacodia carneola (Guenée, 1852) | ⇒ Pseudeustrotia carneola Guenée, 1852 |
| Litholomia napaea Morrison, 1874 | False Pinion |
| Lithomoia germana Morrison, 1874 | American Brindle |
| Lithomoia solidaginis (Hübner, 1803) | ⇒ Xylena solidaginis Hübner, 1803 |
| Lithophane bethunei Grote & Robi..., 1868 | Bay whiff |
| Lithophane georgii Grote, 1875 | George´s Pinion |
| Lithophane innominata Smith, 1893 | Nameless Pinion |
| Luperina passer (Guenée, 1852) | ⇒ Resapamea passer Guenée, 1852 |
| Mamestra configurata Walker, 1856 | Bertha Armyworm |
| Marimatha nigrofimbria Guenée, 1852 | Black Bordered Lemon Moth |
| Melanchra adjuncta Boisduval, 1841 | Hitched Arches |
| Melanchra pulverulenta Smith, 1888 | |
| Metalepsis salicarum (Walker, 1857) | ⇒ Cerastis salicarum Walker, 1857 |
| Mythimna (Pseudaletia) unipuncta Haworth, 1809 | American armyworm |
| Neleucania bicolorata Grote, 1881 | |
| Neoligia invenusta Troubridge &..., 2002 | Naked sole |
| Neoligia subjuncta Smith, 1898 | Connected Brocade |
| Nephelodes minians Guenée, 1852 | Bronzed Cutworm |
| Noctua pronuba Linnaeus, 1758 | Common yellow underwing moth |
| Ochropleura implecta Lafontaine, 1998 | American Flame-shouldered Dart |
| 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 |
| Oncocnemis chorda (Grote, 1880) | ⇒ Sympistis collaris J.T.Troubridge, 2008 |
| Oncocnemis cibalis (Grote, 1880) | ⇒ Sympistis cibalis Grote, 1880 |
| Oncocnemis figurata (Harvey, 1875) | ⇒ Sympistis figurata Harvey, 1875 |
| Oncocnemis umbrifascia (Smith, 1894) | ⇒ Sympistis umbrifascia Smith, 1894 |
| Orthodes cynica Guenée, 1852 | Cynical Quaker |
| Orthodes detracta Walker, 1857 | Disparaged Arches |
| Orthodes obscura Smith, 1888 | Obscure Quaker |
| Orthosia hibisci Guenée, 1852 | Green Fruitworm |
| Pachnobia imperita Hübner, 1827 | |
| Pachnobia mixta Walker, 1856 | |
| Pachnobia perquiritata Morrison, 1874 | |
| Panthea acronyctoides Walker, 1861 | Black Zigzag |
| Panthea furcilla Packard, 1864 | Eastern Panthea |
| Panthea virginaria (Grote, 1880) | ⇒ Panthea virginarius Grote, 1880 |
| Papaipema baptisiae Bird, 1902 | Indigo Stem Borer |
| Papaipema birdi Dyar, 1908 | Umbellifer Borer |
| Papaipema maritima Bird, 1909 | Giant Sunflower Borer |
| Papestra biren Goeze, 1781 | Glaucous Shears |
| Papestra cristifera Walker, 1858 | |
| Papestra quadrata Smith, 1891 | Lizard beetles |
| Paradiarsia littoralis Packard, 1867 | Labrador Dart Moth |
| Paralephana argyresthia Hampson, 1926 | |
| Parastichtis suspecta Hübner, 1817 | Squirrel Treefrog |
| Peridroma saucia Hübner, 1808 | Pearly Underwing |
| Phalaena chorebus Cramer, 1777 | |
| Philometra metonalis (Walker, 1859) | ⇒ Phalaenostola metonalis Walker, 1859 |
| Phlogophora iris Guenée, 1852 | Olive Angle Shades |
| Phlogophora periculosa Guenée, 1852 | Brown angle shades |
| Platypolia anceps Stephens, 1850 | |
| Platysenta videns (Guenée, 1852) | ⇒ Condica videns Guenée, 1852 |
| Pleromelloida cinerea Smith, 1904 | Ashy Pleromelloida |
| Pleromelloida conserta Grote, 1881 | |
| Plusia contexta Grote, 1873 | Connected Looper |
| Plusia magnimacula D. Handfield..., 2006 | Lowland Burrowing Treefrog |
| Plusia putnami Grote, 1873 | Lempke's gold spot |
| Plusia venusta Walker, 1865 | Green milkweed |
| 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 |
| Pronoctua typica Smith, 1894 | |
| Protexarnis balanitis Grote, 1873 | |
| Protogygia lagena Grote, 1875 | |
| Protogygia pallida Fauske & Laf..., 2004 | |
| Protogygia postera Fauske & Laf..., 2004 | |
| Protogygia querula Dod, 1915 | Querula Dart |
| Protolampra brunneicollis Grote, 1864 | Brown-collared Dart |
| Protolampra rufipectus Morris, 1874 | Red-breasted Dart Moth |
| Protorthodes curtica Smith, 1890 | |
| Protorthodes eureka Barnes & Ben..., 1927 | Bermuda cowfish |
| Proxenus mendosa McDunnough, 1927 | Lake Tahoe draba |
| Pseudaletia unipuncta (Haworth, 1809) | ⇒ Mythimna unipuncta Haworth, 1809 |
| Pseudanarta crocea H. Edwards, 1875 | Sanddabs |
| Pseudanarta flava Grote, 1874 | |
| Pseudeva palligera Grote, 1881 | Western Unspotted Looper |
| Pseudeva purpurigera Walker, 1858 | Straight-lined Looper |
| Pseudohermonassa bicarnea Guenée, 1852 | Pink spotted dart |
| Pseudohermonassa tenuicula Morrison, 1874 | Morrison'S Sooty Dart |
| Pseudorthosia variabilis (Grote, 1874) | ⇒ Dichagyris variabilis Grote, 1874 |
| Pyrrhia exprimens Walker, 1857 | Purple-lined Sallow |
| Raphia frater Grote, 1864 | Brother |
| Rhizagrotis albalis Grote, 1878 | |
| Rhynchagrotis cupida (Grote, 1864) | ⇒ Abagrotis cupida Grote, 1865 |
| Rhynchagrotis exsertistigma Morris, 1874 | |
| Richia grotei (Franclemont ..., 1983) | ⇒ Dichagyris grotei Franclemont ..., 1983 |
| Schinia gaurae J. E. Smith, 1797 | Clouded Crimson |
| Schinia nuchalis Grote, 1878 | Spotted Clover Moth |
| Scotogramma fervida Barnes & McD..., 1912 | Sand sole |
| Scotogramma inconcinna Smith, 1887 | |
| Scotogramma submarina Grote, 1883 | |
| Setagrotis pallidicollis (Grote, 1880) | ⇒ Setagrotis vocalis Grote, 1879 |
| Setagrotis vocalis Grote, 1879 | |
| 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 |
| Spartiniphaga includens (Walker, 1857) | ⇒ Photedes includens Walker, 1858 |
| Spartiniphaga panatela (Smith, 1904) | ⇒ Photedes panatela Smith, 1904 |
| Spiramater grandis (Guenée, 1841) | ⇒ Lacanobia grandis Guenée, 1852 |
| Spiramater lutra Guenée, 1852 | Otter Arches |
| Spodoptera ornithogalli Guenée, 1852 | Cotton Cutworm |
| Spodoptera praefica Grote, 1875 | Western yellow-striped armyworm |
| Stigmoplusia acalypta Dufay, 1972 | |
| Stretchia plusiaeformis H. Edwards, 1874 | Balloonfish |
| Sutyna privata Walker, 1857 | Private Sallow |
| Sympistis albifasciata Hampson, 1906 | |
| Sympistis dinalda J.B. Smith, 1908 | Broad-lined Sallow |
| Sympistis funebris Hübner, 1809 | |
| Syngrapha alias Ottolengui, 1902 | Hooked Silver Y |
| Syngrapha alticola Walker, 1857 | Alpine Beauty |
| Syngrapha angulidens Smith, 1891 | Lizard beetles |
| Syngrapha diasema Boisduval, 1829 | |
| Syngrapha epigaea Grote, 1874 | Epigaea Looper |
| Syngrapha ignea Grote, 1863 | Mountain Beauty |
| Syngrapha interrogationis Linnaeus, 1758 | Cutworm |
| Syngrapha octoscripta Grote, 1874 | Dusky Silver Y |
| Syngrapha rectangula Kirby, 1837 | Angulated Cutworm |
| Syngrapha selecta Walker, 1857 | Blue Metal Mark |
| Syngrapha viridisigma Grote, 1874 | Green-marked Looper |
| Tarache augustipennis Grote, 1875 | Narrow-winged Midget |
| Tarachidia tortricina (Zeller, 1872) | ⇒ Ponometia tortricina Zeller, 1872 |
| Tarachidia virginalis (Grote, 1881) | ⇒ Ponometia virginalis Grote, 1881 |
| Tholera americana Smith, 1894 | Filefishes |
| Trachea delicata Grote, 1874 | Delicate |
| Trichoclea antica (Smith, 1891) | ⇒ Anarta antica Smith, 1891 |
| Trichoplusia ni Hübner, 1803 | Cabbage Looper |
| Trichordestra legitima Grote, 1864 | Striped Garden Caterpilla |
| Trichordestra lilacina Harvey, 1874 | Aster Arches |
| Trichordestra liquida Grote, 1881 | |
| Trichordestra tacoma Strecker, 1900 | Tacoma Arches |
| Ulolonche orbiculata Smith, 1891 | Lizard beetles |
| Xanthia (Xanthia) togata Esper, 1788 | Pink-barred Sallow |
| Xanthia tatago Lafontaine &..., 2003 | Northern Red-legged Frog |
| Xestia (Anomogyna) fabulosa Ferguson, 1965 | |
| Xestia (Anomogyna) infimatis Grote, 1880 | |
| Xestia (Anomogyna) vernilis Grote, 1879 | |
| Xestia (Megasema) c-nigrum Linnaeus, 1758 | Cutworm Moth |
| Xestia (Pachnobia) atrata (Morrison, 1874) | ⇒ Coleoxestia atrata Gounelle, 1909 |
| Xestia (Pachnobia) speciosa Hübner, 1813 | |
| Xestia dolosa Franclemont, 1980 | Black-Letter Dart |
| Xestia homogena (Staudinger, 1871) | ⇒ Xestia rhaetica Staudinger, 1871 |
| Xestia normaniana Grote, 1874 | Norman'S Dart Moth |
| Xestia oblata Morrison, 1875 | Rosy Dart |
| Xestia smithii Snellen, 1896 | Smith'S Dart |
| Xylena brucei Smith, 1892 | Bruce´s Swordgrass Moth |
| Xylena cineritia Grote, 1874 | Gray Swordgrass |
| Xylena nupera Lintner, 1874 | American Swordgrass |
| Xylena thoracica Putnam-Cramer, 1886 | Acadian Swordgrass Moth |
| Xylotype arcadia Barnes & Ben..., 1922 | Acadian Sallow |
