| 10323.1 | maccabei Troubridge & Crabo, Hadena | 932922 | |
| 9321 | maccullochii Kirby, Androloma, [Alypia] | 931984 | |
| maccullochii Kirby, Androloma– ssp., [Alypia] | 931984 | |
| macdonaldi Benjamin, Chytonix | 932249 | |
| macerata Smith, Phosphila– ssp., [Hadena] | 932209 | |
| 9867 | macfarlandi Buckett & Bauer, Annaphila | 931752 | |
| 10143 | mackiei Barnes & Benjamin, Sympistis, [Oncocnemis] | 931858 | |
| 10345 | macleani McDunnough, Lasionycta, [Anarta] | 933006 | |
| 10712 | macleani McDunnough, Euxoa | 933332 | |
| 11103.1 | macneilli Hardwick, Schinia | 932109 | |
| macona Smith, Orthosia, [Taeniocampa] | 932769 | |
| macra Guenée, Spodoptera, [Laphygma] | 932216 | |
| Macrhypena Grote | 930560 | |
| Macristis Schaus | 930555 | |
| Macrochilo Hübner | 930504 | |
| Macrocneme Hübner | 930448 | |
| Macrocrambus Kirby | 930227 | |
| 10859 | macrodentata Hardwick, Euxoa | 933477 | |
| macromacula Strand, Heliothodes | 932036 | |
| macromera Butler, Parasemia, [Nemeophila] | 930283 | |
| Macronoctua Grote | 932441 | |
| macroptica Smith, Schinia | 932170 | |
| 10332.1 | macrostigma Lafontaine & Mikkola, Coranarta, [Anarta] | 932864 | |
| Macrurocampa Dyar | 930066 | |
| 9419 | mactata Guenée, Platypolia, [Apamea] | 932699 | |
| mactata Guenée, Platypolia– ssp., [Apamea] | 932699 | |
| mactatoides Barnes & McDunnough, Mesapamea, [Trachea] | 932371 | |
| macula Smith, Nocloa, [Metoponia] | 931581 | |
| 8431 | macula Druce, Schrankia, [Hypenodes] | 930668 | |
| 11188.1 | maculata Pogue, Schinia | 932169 | |
| 8214 | maculata Harris, Lophocampa | 930373 | |
| 10981 | maculata Smith, Xestia, [Agrotiphila] | 933595 | |
| maculata Harris, Lophocampa– ssp. | 930373 | |
| maculate Smith, Xestia, misspelled | 933595 | |
| 8634 | maculosa Behr, Drasteria, [Syneda] | 930908 | |
| maculosa Stretch, Grammia | 930271 | |
| 8447 | madefactalis Guenée, Hypena | 930568 | |
| 10773 | maderensis Lafontaine, Euxoa | 933351 | |
| 10885 | madida Guenée, Dichagyris, [Mesogona] | 933248 | |
| madonna Barnes & Lindsey, Rhizagrotis, [Prochloridea] | 932688 | |
| Madopa Stephens | 930589 | |
| Maenas Hübner, preoccupied | 930623 | |
| 8793 | maestosa Hulst, Catocala | 930789 | |
| magdalena Hulst, Cucullia, [Nycterophaeta] | 931533 | |
| magdalena Strecker, Catocala | 930826 | |
| magna Barnes & Benjamin, Polia– ssp., [Anarta] | 932871 | |
| 8310 | magna Ferguson, Orgyia | 930162 | |
| 11043.1 | magnicupida Lafontaine, Abagrotis | 933686 | |
| 9121 | magnifica Grote, Spragueia | 931381 | |
| magnifica Ottolengui, Syngrapha, [Autographa] | 931212 | |
| magnifica Neumögen, Ponometia, [Heliodora] | 931335 | |
| 8951.1 | magnimacula Handfield & Handfield, Plusia | 931238 | |
| Magusa Walker | 932280 | |
| mahalpa Schaus, Anicla | 933212 | |
| maia Ottolengui, Arachnis– ssp. | 930327 | |
| 9966 | maida Dyar, Hillia, [Hadena] | 932623 | |
| maillardi of authors, Apamea, not Geyer, [1834] | 932351 | |
| 10864.1 | maimes Smith, Euxoa, [Carneades] | 933484 | |
| maizi Fitch, Euxoa | 933395 | |
| major Fuchs, Lymantria, [Ocneria] | 930141 | |
| 9152 | major Smith, Tarache, [Acontia] | 931371 | |
| major Chou & Lu, Plusia, [Chrysaspidia] | 931236 | |
| major Speyer, Anarta, [Mamestra] | 932826 | |
| 10007 | major Smith, Feralia | 931563 | |
| 10135.4 | major Grote, Sympistis, [Oncocnemis] | 931878 | |
| 7905 | major Grote & Robinson, Datana | 930036 | |
| 8324 | majoralis Smith, Idia, [Epizeuxis] | 930470 | |
| majuscula Haworth, Peridroma, [Noctua] | 933211 | |
| majuscula Edwards, Cydosia, [Penthetria] | 931254 | |
| 10585 | majuscula Herrich-Schäffer, Orthodes | 933136 | |
| mala Strand, Tarache | 931345 | |
| mala Smith, Cucullia, [Copicucullia] | 931529 | |
| 8407 | malaca Grote, Oxycilla, [Erastria] | 930597 | |
| 9662 | malana Fitch, Balsa, [Brachytaenia] | 931417 | |
| 10661 | malefida Guenée, Agrotis | 933526 | |
| Maliattha Walker | 931294 | |
| malis Smith, Euxoa, [Carneades] | 933397 | |
| mallochi Benjamin, Xestia, [Anomagyna] | 933599 | |
| malora Smith, Orthosia, [Taeniocampa] | 932778 | |
| Mamestra of authors, not Ochsenheimer, 1816 | 932864 | |
| Mamestra Ochsenheimer | 932897 | |
| Mamistra Sodoffsky, emendation | 932897 | |
| Mammifrontia Barnes & Lindsey | 932433 | |
| 9391.3 | mammuthus Crabo, Resapamea | 932368 | |
| 8441 | manalis Walker, Hypena | 930561 | |
| Manbuta Walker | 931086 | |
| manca Benjamin, Euxoa | 933350 | |
| manchurica Matsumura, Orgyia | 930160 | |
| mandane Druce, Galgula, [Rivula] | 932249 | |
| mandela Druce, Elasmia– ssp., [Edema] | 930126 | |
| manethusa Druce, Striacosta, [Agrotis] | 933228 | |
| 10537 | mania Strecker, Homorthodes, [Mamestra] | 933094 | |
| 10666 | manifesta Morrison, Feltia, [Agrotis] | 933494 | |
| manifestolabes Morrison, Cerastis, [Agrotis] | 933536 | |
| manitoba Beutenmüller, Catocala– ssp. | 930847 | |
| manitoba McDunnough, Sympistis– ssp., [Oncocnemis] | 931875 | |
| manitoba Smith, Acronicta, [Acronycta] | 931445 | |
| manitobae McDunnough, Ipimorpha– ssp. | 932679 | |
| 10863 | manitobana McDunnough, Euxoa | 933478 | |
| manitobensis McDunnough, Macrurocampa– ssp., [Fentonia] | 930067 | |
| manitobensis Cassino, Catocala | 930851 | |
| manitou Neumögen & Dyar, Notodonta– ssp. | 930015 | |
| Manruta Smith | 933256 | |
| mansueta Druce, Pseudohemihyalea | 930383 | |
| mansueta H. Edwards, Pseudohemihyalea, excluded | 990028 | |
| 9218 | mansueta Smith, Acronicta, [Acronycta] | 931434 | |
| mantalini Smith, Abagrotis, [Caradrina] | 933666 | |
| 7998 | manteo Doubleday, Lochmaeus | 930090 | |
| 9744 | manti Barnes, Plagiomimicus, [Stibadium] | 931653 | |
| 8307 | manto Strecker, Dasychira, [Parorgyia] | 930159 | |
| mapensa Dyar, Chamaeclea | 931760 | |
| 8912 | mappa Grote & Robinson, Autographa, [Plusia] | 931194 | |
| Marasmalus Grote | 931102 | |
| Marathyssa Walker | 931102 | |
| 8744 | marcida Guenée, Mocis, [Remigia] | 930943 | |
| 8352 | marcidilinea Grote, Zanclognatha, [Herminia] | 930499 | |
| 9132 | margana Fabricius, Spragueia, [Pyralis] | 931392 | |
| margaritae Berg, Eublemma, [Trothisa] | 930694 | |
| margaritosa Haworth, Peridroma, [Noctua] | 933211 | |
| margherita Beutenmüller, Catocala | 930809 | |
| marginago Haworth, Pyrrhia | 932040 | |
| marginalis Cockayne, Euproctis | 930172 | |
| marginata Haworth, Schinia, [Crambus] | 932091 | |
| marginata Fabricius, Pyrrhia | 932040 | |
| 8121.2 | marginata of authors, Virbia, not Druce, 1885 | 930303 | |
| marginata Fabricius, Catocala, [Noctua] | 930764 | |
| marginella Fabricius, Catocala, [Noctua] | 930764 | |
| marginidens of authors, Papaipema, not Guenée, 1852 | 932478 | |
| marginidens of authors, Papaipema, not Guenée, 1852 | 932477 | |
| 9492 | marginidens Guenée, Papaipema, [Gortyna] | 932472 | |
| marginipicta Varga, Apamea | 932353 | |
| 8172.1 | margo Schmidt, Grammia | 930251 | |
| 11224 | margueritaria Blanchard, Grotella | 931711 | |
| mariae Grote, Photedes, [Eustrotia] | 932421 | |
| mariana Strecker, Catocala | 930803 | |
| mariana Walter, Abrostola | 931163 | |
| mariana Edwards, Catocala | 930803 | |
| Marilopteryx Franclemont | 933201 | |
| Marimatha Walker | 931283 | |
| 9804 | marina Smith, Paramiana, [Cerma] | 931588 | |
| 9403 | marina Grote, Aseptis, [Hadena] | 932649 | |
| marina Packard, Misogada, [Lochmaeus] | 930066 | |
| marinensis McDunnough, Euxoa | 933395 | |
| 10412 | marinitincta Harvey, Lacinipolia, [Mamestra] | 933066 | |
| marinitincta Harvey, Lacinipolia– ssp., [Mamestra] | 933066 | |
| 9320 | mariposa Grote & Robinson, Alypia | 931983 | |
| marita Schaus, Antiblemma, [Capnodes] | 931093 | |
| 9500 | maritima Bird, Papaipema | 932509 | |
| marloffi Dyar, Lasionycta, [Anytus] | 932988 | |
| marloffi Barnes & Benjamin, Ulolonche, [Hyssia] | 933121 | |
| marmoraris Guenée, Melipotis, [Bolina] | 930869 | |
| 8804 | marmorata Edwards, Catocala | 930796 | |
| 9256 | marmorata Smith, Acronicta, [Acronycta] | 931473 | |
| marmorea Sepp, Spodoptera, [Phalaena] | 932221 | |
| marmorea of authors, Spragueia, not Butler, 1879 | 931391 | |
| marmorea Schnaider, Lymantria | 930141 | |
| Marmorinia Guenée | 930558 | |
| 8350 | martha Barnes, Zanclognatha | 930497 | |
| 7975 | marthesia Cramer, Macrurocampa, [Phalaena] | 930067 | |
| marthesia Cramer, Macrurocampa– ssp., [Phalaena] | 930067 | |
| 9685.1 | marti Holland, Bryolymnia | 932241 | |
| 10422.1 | martini Selman & Leuschner, Lacinipolia | 933076 | |
| martini Hardwick, Schinia– ssp. | 932075 | |
| 8078 | martini Knowlton, Cisthene | 930195 | |
| 10268 | maryx Guenée, Sideridis, [Ceramica] | 932908 | |
| masculina Smith, Euxoa, gender-conform | 933454 | |
| masculinus Smith, Euxoa, [Carneades] | 933454 | |
| masoni Cockerell, Euxoa | 933405 | |
| 11108 | masoni Smith, Schinia, [Rhododipsa] | 932140 | |
| Massala Walker | 931087 | |
| Mastigocera Harris | 930464 | |
| Mastiphanes Grote | 931419 | |
| Mastixis Schaus, see note | 990009 | Note |
| mata Druce, Spragueia, [Agrophila] | 931384 | |
| materna of authors, Eudocima, not Linnaeus, 1767 | 930624 | |
| 8297 | matheri Ferguson, Dasychira | 930149 | |
| Matigramma Grote | 931005 | |
| Matiloxis Schaus | 930746 | |
| matricariae Strecker, Cucullia | 931534 | |
| matronalis Freyer, Parasemia, [Bombyx] | 930283 | |
| matthewi Edwards, Cisseps, [Scepsis] | 930441 | |
| matuta Edwards, Alypia– ssp. | 931979 | |
| Matuta Grote, preoccupied | 933535 | |
| matutina Hübner, Schinia, [Porphyrinia] | 932083 | |
| mavina Barnes & McDunnough, Plagiomimicus, [Stibadium] | 931651 | |
| 9337 | maxima Dyar, Apamea, [Polia] | 932336 | |
| mayhewi Hawks, Catocala– ssp. | 930820 | |
| 11233 | mcdunnoughi Barnes & Benjamin, Neogrotella | 931719 | |
| 8839 | mcdunnoughi Brower, Catocala | 930824 | |
| 10208 | mcdunnoughi Henne, Cucullia, [Copicucullia] | 931532 | |
| 9116 | mcdunnoughi Barnes & Benjamin, Ponometia, [Graeperia] | 931336 | |
| mcdunnoughi Cook, Euxoa | 933442 | |
| 11204.2 | mcfarlandi Opler, Schinia | 932111 | |
| 11175 | meadi Grote, Schinia, [Heliothis] | 932078 | |
| 10098 | meadiana Morrison, Sympistis, [Oncocnemis] | 931924 | |
| meadowsi Comstock, Arachnis– ssp. | 930327 | |
| 10010 | meadowsi Buckett, Feralia | 931566 | |
| Mecoptera Guenée | 932586 | |
| 8274.1 | mecrida Druce, Apeplopoda, [Gymnopoda] | 930450 | |
| mecrona Smith, Homorthodes– ssp., [Taeniocampa] | 933091 | |
| mecyanalis Druce, Oxycilla, [Gustiana] | 930595 | |
| medaminosa Crabo & Lafontaine, Lasionycta– ssp. | 932987 | |
| media Morrison, Drasteria, [Syneda] | 930891 | |
| media Morrison, Plagiomimicus, [Schinia] | 931661 | |
| medialis Grote, Platypolia, [Polia] | 932696 | |
| 9511 | medialis Smith, Hydraecia, [Hydroecia] | 932455 | |
| 10813 | medialis Smith, Euxoa, [Agrotis] | 933354 | |
| medialis Smith, Bleptina | 930522 | |
| mediatrix Dyar, Ponometia | 931338 | |
| 8665.1 | medina Guenée, Coenipeta, [Caenipeta] | 930991 | |
| mediofusca Lambillion, Lymantria | 930141 | |
| 10499 | mediomacula Barnes & Benjamin, Orthosia, [Orthosia] | 932782 | |
| mediosuffusa Strand, Lacinipolia, form | 933065 | |
| meditata Grote, Lacinipolia– ssp., [Dianthoecia] | 933016 | |
| 10368 | meditata Grote, Lacinipolia, [Dianthoecia] | 933016 | |
| mediterranea Goldschmidt, Lymantria | 930141 | |
| Megachyta Grote | 930488 | |
| Megacronycta Grote | 931419 | |
| megadia Smith, Leucania– ssp. | 932948 | |
| megaera Smith, Scotogramma | 932849 | |
| Megagypena Grote | 930560 | |
| megala Alphéraky, Cerapteryx, [Charaeas] | 932808 | |
| Megalographa Lafontaine & Poole | 931208 | |
| Meganola Dyar | 931120 | |
| 9019.2 | megaplaga Dyar, Cobubatha, [Eustrotia] | 931280 | |
| megarena Smith, Lacinipolia– ssp., [Mamestra] | 933053 | |
| megarena Smith, Schinia | 932158 | |
| Megasema Hübner | 933570 | |
| megastigma Smith, Euxoa, [Carneades] | 933464 | |
| Megastopolia Hampson | 930916 | |
| 9117 | megocula Smith, Ponometia, [Tornacontia] | 931337 | |
| melaleuca Thunberg, Sympistis, [Noctua] | 931930 | |
| Melalopha Hübner, suppressed | 930002 | |
| Melalopha Hübner | 930002 | |
| 10107 | melalutea Smith, Sympistis, [Oncocnemis] | 931791 | |
| 10767 | melana Lafontaine, Euxoa | 933469 | |
| Melanapamea Lafontaine | 932361 | |
| Melanchra Hübner | 932873 | |
| 9828 | melanderi Barnes & Benjamin, Nacopa | 931629 | |
| melanis Boisduval, Leptarctia, misplaced? | 930336 | |
| melanissima Inoue, Parasemia | 930283 | |
| melanographa Hampson, Epidemas | 932651 | |
| melanomera Butler, Parasemia, [Nemeophila] | 930283 | |
| Melanomma Grote | 930590 | |
| melanopa of authors, Anarta, not Thunberg, 1791 | 932823 | |
| melanopa Barnes, Dasylophia | 930135 | |
| melanopa Zeller, Nigetia, [Nola] | 930655 | |
| melanopis Hampson, Protorthodes– ssp., [Eriopyga] | 933115 | |
| 10566 | melanopis Hampson, Protorthodes, [Eriopyga] | 933115 | |
| melanopyga Grote, Bellura, [Arzama] | 932514 | |
| 8561 | melanospila Guenée, Janseodes, [Euperia] | 930726 | |
| melanosticta Hampson, Janseodes, [Caradrina] | 930726 | |
| melanosticta Hampson, Sigela, [Pseudocraspedia] | 930659 | |
| melanotica Reiff, Catocala | 930860 | |
| 10077 | melantho Smith, Sympistis, [Oncocnemis] | 931870 | |
| melanthus Cramer, Syntomeida– ssp., [Sphinx], extralimital | 930461 | |
| 8283 | melanthus Cramer, Syntomeida, [Sphinx] | 930461 | |
| melanympha Guenée, Catocala | 930766 | |
| Melaporphyria Grote | 932188 | |
| Meleneta Smith | 931408 | |
| Melia Neumögen, preoccupied | 930018 | |
| Melicleptria Hübner | 932061 | |
| melicleptrioides Benjamin, Heliolonche, [Heliosea] | 932186 | |
| Melioptis Swinhoe, misspelled | 930868 | |
| Melipotini Grote | 930861 | |
| Melipotis Hübner | 930868 | |
| melita Tietz, Papaipema, misspelled | 932506 | |
| melitensis Bang-Haas, Phragmatobia | 930332 | |
| melliflua Dyar, Schinia | 932146 | |
| Mellinia Hübner | 932621 | |
| mellitula Hulst, Catocala | 930856 | |
| 10835 | melura McDunnough, Euxoa | 933460 | |
| membrosa Morrison, Lasionycta, [Anarta] | 932972 | |
| memorata Ferguson, Dasychira– ssp. | 930150 | |
| menas Doubleday, Heterocampa, [Stauropus] | 930069 | |
| 10526 | mendica Barnes & Lindsey, Nephelodes | 932812 | |
| mendocinensis McDunnough, Plusia, [Autographa] | 931237 | |
| 9649 | mendosa McDunnough, Proxenus | 932268 | |
| 8097 | menea Drury, Eudesmia, [Arctia] | 930175 | |
| Menopsimus Dyar | 930660 | |
| mensurata Möschler, Ephyrodes | 931083 | |
| meodana Smith, Trichordestra– ssp., [Mamestra] | 932890 | |
| mephisto Franclemont, Enargia | 932674 | |
| 9591 | mephisto Blanchard, Properigea, [Neperigea] | 932722 | |
| mera Harvey, Annaphila– ssp. | 931736 | |
| 9852 | mera Harvey, Annaphila | 931736 | |
| 9654 | meralis Morrison, Caradrina | 932257 | |
| merceda Smith, Lithophane– ssp., [Xylina] | 932582 | |
| mercedes Barnes & McDunnough, Euxoa | 933448 | |
| mercenaria Grote, Euxoa, [Agrotis] | 933310 | |
| meridionalis Barnes & McDunnough, Dasychira– ssp., [Olene] | 930150 | |
| meridionalis Dyar, Furcula– ssp., [Cerura] | 930026 | |
| meridionalis Riotte, Orgyia | 930168 | |
| 8298 | meridionalis Barnes & McDunnough, Dasychira, [Olene] | 930150 | |
| meridionalis Draudt, Gerra | 931968 | |
| Meridyrias Hampson | 930994 | |
| Merolonche Grote | 931419 | |
| Meropleon Dyar | 932408 | |
| merricata Bird, Papaipema | 932493 | |
| merriccata Bird, Papaipema | 932493 | |
| merrickata McDunnough, Papaipema, emendation | 932493 | |
| merricki Smith, Idia, [Epizeuxis] | 930475 | |
| merricki Holland, Eulepidotis, excluded | 990035 | |
| 9694 | mersa Morrison, Condica, [Segetia] | 931993 | |
| mertena Smith, Xylena– ssp., [Calocampa] | 932522 | |
| Mesapamea Heinicke | 932369 | |
| 8295 | mescalera Ferguson, Dasychira | 930147 | |
| mesceana Hampson, Schinia, [Lygranthoecia] | 932150 | |
| mescei Hampson, Tarache, emendation | 931341 | |
| mescei Hampson, Catocala | 930807 | |
| Mesembragrotis Barnes & Benjamin | 933230 | |
| mesillae Cockerell, Datana– ssp. | 930039 | |
| meskeana Grote, Schinia, [Lygranthoecia] | 932150 | |
| 8822 | meskei Grote, Catocala | 930807 | |
| meskei Edwards, Coenipeta, [Eubolina] | 930990 | |
| meskei Smith, Tarache, [Acontia] | 931341 | |
| meskei Speyer, Condica, [Caradrina] | 931989 | |
| Mesodonta Matsumura | 930047 | |
| Mesoeuxoa Corti | 933306 | |
| Mesogona Boisduval | 932609 | |
| Mesoligia Boursin | 932374 | |
| Mesolomia Smith | 932290 | |
| 8845 | messalina Guenée, Catocala | 930831 | |
| 10705 | messoria Harris, Euxoa, [Agrotis] | 933319 | |
| meta Smith, Parabagrotis, [Rhynchagrotis] | 933644 | |
| Metahadena Morrison | 931786 | |
| Metalectra Hübner | 930678 | |
| Metalepsis Grote | 933535 | |
| Metalestra Barnes & Benjamin, misspelled | 930678 | |
| 8682 | metaleuca Hampson, Acritogramma, [Matigramma] | 931013 | |
| Metallata Möschler | 931074 | |
| 8917 | metallica Grote, Autographa, [Plusia] | 931203 | |
| metallica Grote, Tarache, [Acontia] | 931349 | |
| metalomus Mayfield, Catocala | 930832 | |
| 8570 | metamorpha Dyar, Eulepidotis | 931067 | |
| Metaponpneumata Möschler | 931639 | |
| 9012 | metaspilaris Walker, Cobubatha | 931272 | |
| 8978 | metaspilella Walker, Nycteola, [Subrita] | 931145 | |
| 8708 | metata Smith, Zale, [Phaeocyma] | 931043 | |
| Metathorasa of authors, misspelled | 932189 | |
| 8707 | metatoides McDunnough, Zale | 931042 | |
| Metaxaglaea Franclemont | 932596 | |
| Metaxya Walker, misspelled | 933306 | |
| Metaxyia Hampson, misspelled | 933306 | |
| Metaxyja Hübner | 933306 | |
| Methorasa Moore | 932189 | |
| 8362 | metonalis Walker, Phalaenostola, [Herminia] | 930512 | |
| Metoponiinae Herrich-Schäffer | 931502 | |
| metra Smith, Acronicta, [Acronycta] | 931426 | |
| Metria Hübner | 930991 | |
| 8645.1 | mexicana Guenée, Hemeroblemma, [Peosina] | 930755 | |
| mexicana Strand, Amyna | 931252 | |
| mexicana Draudt, Cisthene, [Illice] | 930177 | |
| mexicana of authors, Haematomis, not Druce, 1885 | 930211 | |
| 11134.3 | mexicana Hampson, Schinia, [Eupanychis] | 932087 | |
| 8248 | mexicana Dognin, Ectypia, [Euverna] | 930421 | |
| mexicana Draudt, Dolocucullia, [Cucullia] | 931540 | |
| mexicana Oberthür, Hypercompe, [Ecpantheria] | 930324 | |
| 11029.1 | mexicana Lafontaine, Abagrotis | 933681 | |
| mexicana Haimbach, Zale | 931032 | |
| mexicana Grote & Robinson, Notarctia, [Arctia] | 930276 | |
| mexicana Walker, Estigmene, [Spilosoma] | 930317 | |
| mexiconis Strand, Halysidota, [Halesidota] | 930363 | |
| mia Strand, Enargia | 932676 | |
| Miana Stephens | 932374 | |
| 9514 | micacea Esper, Hydraecia, [Phalaena] | 932458 | |
| 8571 | micca Druce, Eulepidotis, [Palindia] | 931070 | |
| michabo Grote, Grammia | 930241 | |
| 10689.1 | michiganensis Crabo & Lafontaine, Copablepharon | 933269 | |
| Micrathetis Hampson | 932030 | |
| Microblemma Hampson | 930649 | |
| Microcoelia Guenée | 931419 | |
| Microdota Dognin, homonym | 930396 | |
| 8946 | microgamma Hübner, Syngrapha, [Noctua] | 931230 | |
| Microhelia Hampson | 932034 | |
| 8876 | micronympha Guenée, Catocala | 930857 | |
| micronyx Grote, Euxoa, [Agrotis] | 933413 | |
| Micropterogyna Rambur | 930159 | |
| Microthetis Hampson, misspelled | 932030 | |
| 8883 | microvalis Ottolengui, Abrostola | 931164 | |
| micta Hampson, Lacinipolia, [Miselia] | 933036 | |
| midas Barnes & Lindsey, Arachnis | 930329 | |
| migrata Smith, Apamea– ssp., [Luperina] | 932340 | |
| mildredae Franclemont, Catocala | 930790 | |
| militaris Harris, Haploa, [Callimorpha] | 930345 | |
| 10898 | milleri Grote, Protogygia, [Agrotis] | 933306 | |
| Milyas Walker | 931077 | |
| 8659 | mima Harvey, Heteranassa, [Homoptera] | 930982 | |
| 10738 | mimallonis Grote, Euxoa, [Agrotis] | 933315 | |
| mimallonis Grote, Euxoa– ssp., [Agrotis] | 933315 | |
| Mimarctia Neumögen & Dyar | 930239 | |
| Mimetes Hübner, preoccupied | 933306 | |
| Mimetis Hampson, misspelled | 933306 | |
| mimica Strecker, Leucania | 932948 | |
| 9755.1 | mimica Poole, Plagiomimicus | 931660 | |
| Mimobarathra Barnes & McDunnough | 933186 | |
| Mimophisma Hampson | 930968 | |
| 10351 | mimula Grote, Lacinipolia, [Mamestra] | 933079 | |
| mimuli Behr, Anarta, excluded | 990049 | |
| 10147.3 | min Troubridge, Sympistis | 931814 | |
| 9304 | minatea Dyar, Gerrodes | 931969 | |
| minax Draudt, Psilopleura– ssp. | 930453 | |
| 9648 | mindara Barnes & McDunnough, Proxenus | 932267 | |
| minea Slosson, Grammia– ssp., [Arctia] | 930241 | |
| minella Dyar, Acronicta– ssp., [Apatela] | 931458 | |
| minerea Guenée, Zale– ssp., [Homoptera] | 931032 | |
| 8697 | minerea Guenée, Zale, [Homoptera] | 931032 | |
| minereana Strand, Zale, male form | 931032 | |
| minereella Strand, Zale, female form | 931032 | |
| minereoides Strand, Zale, female form | 931032 | |
| minerva Cassino, Catocala | 930804 | |
| mineta Franclemont, Parascotia | 930673 | |
| 11155 | miniana Grote, Schinia, [Rhododipsa] | 932138 | |
| 10524 | minians Guenée, Nephelodes | 932810 | |
| minians Guenée, Nephelodes– ssp. | 932810 | |
| miniata Kirby, Hypoprepia– ssp., [Lithosia] | 930204 | |
| miniata Packard, Lycomorpha– ssp. | 930201 | |
| 8089 | miniata Kirby, Hypoprepia, [Lithosia] | 930204 | |
| 8201 | minima Neumögen, Hypocrisias, [Halesidota] | 930359 | |
| 8286 | minima Grote, Pseudocharis, [Hippola] | 930463 | |
| 9076 | minima Guenée, Eublemma, [Micra] | 930693 | |
| minimalis Grote, Abagrotis, [Agrotis] | 933672 | |
| minimalis Grote, Zanclognatha | 930496 | |
| 8374 | minimalis Barnes & McDunnough, Bleptina | 930525 | |
| miniota Smith, Mniotype, [Xylophasia] | 932706 | |
| miniptica Dyar, Richia, [Agrotis] | 933263 | |
| ministra Drury, Datana– ssp., [Phalaena] | 930033 | |
| 7902 | ministra Drury, Datana, [Phalaena] | 930033 | |
| ministra of authors, Datana, not Drury, 1773 | 930036 | |
| ministra of authors, Datana, not Drury, 1773 | 930034 | |
| 8993 | minna Butler, Nola | 931133 | |
| Minofala Smith | 932816 | |
| minor Smith, Heteranassa, [Campometra] | 930983 | |
| 8984 | minor Dyar, Meganola | 931124 | |
| 8024 | minor Barnes & Benjamin, Hyparpax | 930117 | |
| 10193 | minor Barnes & McDunnough, Dolocucullia, [Cucullia] | 931541 | |
| 10131 | minor Barnes, Sympistis, [Oncocnemis] | 931949 | |
| 8590.1 | minor Lafontaine & Walsh, Banaina | 930751 | |
| 8343 | minoralis Smith, Zanclognatha | 930491 | |
| 9843 | minorata Grote, Fota | 931631 | |
| minorata Barnes & McDunnough, Egira– ssp., [Xylomyges] | 932792 | |
| minorata Smith, Metallata, [Antiblemma] | 931075 | |
| minorata Barnes, Dypterygia | 932274 | |
| minorata Smith, Gabara, [Eucalyptra] | 930645 | |
| 10318 | minorata Smith, Hadena, [Mamestra] | 932914 | |
| minorata Smith, Mythimna, [Leucania] | 932933 | |
| 8457 | minualis Guenée, Hypena | 930580 | |
| 8956.1 | minus Dyar, Marathyssa | 931105 | |
| 8983 | minuscula Zeller, Meganola, [Nola] | 931121 | |
| 9416 | minuscula Morrison, Oligia, [Orthosia] | 932384 | |
| minuscula Morrison, Oligia– ssp., [Orthosia] | 932384 | |
| minuscula Barnes & McDunnough, Micrathetis, [Athetis] | 932031 | |
| minuscula Zeller, Meganola– ssp., [Nola] | 931121 | |
| minuta of authors, Ponometia, not Hübner, 1809 | 931314 | |
| 8874 | minuta Edwards, Catocala | 930856 | |
| 8103 | minuta Druce, Afrida, [Nola] | 931159 | |
| 9848 | minuta Barnes & McDunnough, Eviridemas, [Viridemas] | 931632 | |
| Miodera Smith | 933187 | |
| 9864 | miona Smith, Annaphila | 931749 | |
| 8863 | mira Grote, Catocala | 930844 | |
| 9735 | mirabilis Neumögen, Heminocloa, [Basilodes] | 931763 | |
| 11019 | mirabilis Grote, Abagrotis, [Agrotis] | 933657 | |
| Miracavera McDunnough, misspelled | 931566 | |
| Miracavira Franclemont | 931566 | |
| 8855 | miranda Edwards, Catocala | 930842 | |
| 9647 | miranda Grote, Proxenus, [Caradrina] | 932266 | |
| miranda Dyar, Macrurocampa | 930068 | |
| mirandalis Hübner, Syllectra | 931086 | |
| 8616 | mirifica Edwards, Drasteria, [Syneda] | 930888 | |
| 10069 | mirificalis Grote, Sympistis, [Oncocnemis] | 931861 | |
| miriquidoi Koch, Apamea, [Crymodes] | 932353 | |
| mirzah Guenée, Azeta | 931078 | |
| Misa of authors, not Karsch, 1895 | 931969 | |
| miscellus Grote, Catabena, [Adipsophanes] | 931765 | |
| miscellus Smith, Phosphila, form | 932209 | |
| Miselia Ochsenheimer | 932909 | |
| miselioides Guenée, Phosphila– ssp., [Hadena] | 932209 | |
| 9619 | miselioides Guenée, Phosphila, [Hadena] | 932209 | |
| misera Grote, Mesapamea, [Hadena] | 932370 | |
| 8506 | miserulata Grote, Metalectra, [Homopyralis] | 930686 | |
| Misogada Walker | 930065 | |
| mississippiensis Barnes & Benjamin, Hypoprepia– ssp. | 930204 | |
| missouriensis Schwarz, Catocala, form | 930769 | |
| misteca Hampson, Dichagyris, [Carneades] | 933237 | |
| 10766 | misturata Smith, Euxoa, [Carneades] | 933468 | |
| 11169 | mitis Grote, Schinia, [Heliothis] | 932180 | |
| 10774 | mitis Smith, Euxoa, [Carneades] | 933473 | |
| 8408 | mitographa Grote, Oxycilla, [Erastria] | 930598 | |
| mixta Haworth, Anaplectoides, [Noctua] | 933564 | |
| 9685.2 | mixta Lafontaine & Walsh, Bryolymnia | 932242 | |
| 10959.1 | mixta Walker, Xestia, [Acronycta] | 933597 | |
| 8212 | mixta Neumögen, Lophocampa, [Halesidota] | 930371 | |
| 9361 | mixta Grote, Melanapamea, [Hadena], variety | 932362 | |
| 10876.1 | mizteca Schaus, Dichagyris, [Carneades] | 933237 | |
| Mnesipyrga Meyrick | 931380 | |
| Mniotype Franclemont | 932702 | |
| 9693 | mobilis Walker, Condica, [Perigea] | 931992 | |
| Mocis Hübner | 930941 | |
| moctezuma Dyar, Xanthopastis | 933210 | |
| moderata Walker, Dargida, [Leucania] | 932928 | |
| moderna Grote, Catocala | 930789 | |
| modesta Smith, Hypena | 930587 | |
| modesta Packard, Parasemia, [Platarctia] | 930283 | |
| 7910 | modesta Beutenmüller, Datana | 930041 | |
| 10090 | modesta McDunnough, Sympistis, [Oncocnemis] | 931934 | |
| 9838 | modesta Barnes & McDunnough, Rhizagrotis, [Prochloridea] | 932688 | |
| 7941 | modesta Hudson, Furcula, [Cerura] | 930029 | |
| 10569 | modesta Morrison, Ulolonche, [Dianthoecia] | 933120 | |
| modesta Warnecke, Xestia, [Aplectoides] | 933596 | |
| modesta Heyne, Orgyia | 930160 | |
| modesta Edwards, Ponometia, [Fruva] | 931326 | |
| modestalis Dyar, Zanclognatha | 930492 | |
| 10166 | modestella Barnes & McDunnough, Stylopoda, [Pseudacontia] | 931785 | |
| 8464 | modestoides Poole, Hypena | 930587 | |
| 9029 | modestula Dyar, Phoenicophanta | 931282 | |
| 9244 | modica Walker, Acronicta, [Acronycta] | 931465 | |
| 9404 | modica Guenée, Oligia, [Apamea] | 932378 | |
| 11207 | modicella Grote, Heliolonche | 932184 | |
| modifica Morrison, Ulolonche, [Taeniocampa] | 933118 | |
| modiola Grote, Mesapamea, [Hadena] | 932370 | |
| 8055 | modulata Edwards, Inopsis, [Ctenucha] | 930229 | |
| Moenas Walker, misspelled | 930623 | |
| 10847 | moerens Grote, Euxoa, [Agrotis] | 933449 | |
| moes Dyar, Meleneta, [Zazunga] | 931409 | |
| moeschleri Bang-Haas, Xestia, [Agrotis] | 933591 | |
| moeschleri Staudinger, Lasionycta– ssp., [Anarta] | 932978 | |
| moeseri Bird, Papaipema | 932473 | |
| moesta Hübner, Sympistis, [Noctua] | 931930 | |
| moesta Dyar, Acronicta– ssp., [Apatela] | 931427 | |
| moffatiana Grote, Pyreferra, [Scopelosoma] | 932583 | |
| moierra Dyar, Grammia, [Apantesis] | 930254 | |
| moilena Strecker, Mniotype, [Hadena] | 932705 | |
| 10260 | mojave Benjamin, Sideridis, [Trichoclea] | 932903 | |
| 10794.2 | mojave Lafontaine, Euxoa | 933377 | |
| molinoi Dyar, Xanthopastis | 933210 | |
| mollifera Walker, Idia, [Microphysa] | 930471 | |
| mollis Walker, Heterocampa | 930087 | |
| 10644 | mollis Walker, Feltia, [Agrotis] | 933488 | |
| 9631 | mollissima Guenée, Callopistria, [Eriopus] | 932192 | |
| Momaphana Hampson, misspelled | 931560 | |
| Momophana Grote | 931560 | |
| 9658 | mona Barnes & McDunnough, Caradrina, [Athetis] | 932262 | |
| monaxa Schaus, Ptichodis, [Phurys] | 930936 | |
| 9189.1 | moneta Anweiler & Schmidt, Charadra | 931407 | |
| moneta of authors, Polychrysia, not Fabricius, 1787 | 931182 | |
| monetifera Guenée, Callopistria, [Eriopus] | 932194 | |
| 9540 | monica Barnes & McDunnough, Aseptis, [Trachea] | 932644 | |
| 8527 | monilis Fabricius, Hypsoropha, [Noctua] | 930628 | |
| Monima Hübner | 932761 | |
| 10340.1 | mono Crabo & Lafontaine, Lasionycta | 933004 | |
| 10993.1 | monochromatea Morrison, Hemipachnobia, [Agrotis] | 933546 | |
| Monodes Guenée | 932224 | |
| monodia Dyar, Metalectra, [Homopyralis] | 930682 | |
| monodon Grote, Autographa, [Plusia] | 931208 | |
| Monogona Guenée | 930627 | |
| Monosca Walker | 932809 | |
| Monostola Alphéraky | 932809 | |
| monotropa Grote, Selenisa, [Selenis] | 930981 | |
| monstrata Walker, Sutyna, [Acronycta] | 932707 | |
| monstratura Walker, Anticarsia, [Thermesia] | 931077 | |
| monstrosa Strand, Tarache | 931356 | |
| montana Hampson, Cucullia | 931505 | |
| 10856 | montana Morrison, Euxoa, [Agrotis] | 933479 | |
| montana Beutenmüller, Dasychira, [Olene] | 930156 | |
| 9656 | montana Bremer, Caradrina | 932260 | |
| 8945 | montana Packard, Syngrapha, [Plusia] | 931231 | |
| montana of authors, Xestia, not Morrison, 1875 | 933594 | |
| montana Smith, Apamea, [Xylophasia], variety, homonym | 932316 | |
| montana Beutenmüller, Catocala | 930806 | |
| 10201 | montanae Grote, Cucullia | 931505 | |
| montanica McDunnough, Anarta, [Scotogramma] | 932832 | |
| montanus Cook, Euxoa, [Chorizagrotis], form | 933309 | |
| montara Smith, Hexorthodes, [Mamestra] | 933160 | |
| monteclara Smith, Euxoa, [Noctua] | 933415 | |
| 8414 | monticola Hulst, Mycterophora | 930675 | |
| montretalis Mabille, Amyna, [Botys] | 931253 | |
| mopsa Edwards, Catocala | 930841 | |
| moqui Barnes, Afilia, [Eunotela] | 930055 | |
| morana Smith, Anarta– ssp., [Mamestra] | 932831 | |
| morandi Benjamin, Xestia– ssp., [Pachnobia] | 933604 | |
| Morasa Walker | 930140 | |
| 8355 | morbidalis Guenée, Chytolita, [Herminia] | 930502 | |
| morbillosa Felder & Rogenhofer, Ophisma | 930968 | |
| morbosa Edwards, Drasteria, [Synedoida] | 930895 | |
| 9721 | moreno Barnes, Ogdoconta | 932019 | |
| 8902 | morigera Edwards, Polychrysia, [Deva] | 931183 | |
| Mormonia Hübner | 930760 | |
| mormonica Neumögen, Notarctia, [Arctia] | 930277 | |
| Mormosia Walker, misspelled | 930760 | |
| morna Strecker, Resapamea, [Hadena] | 932368 | |
| morosa Ferguson, Orgyia– ssp. | 930164 | |
| 9653 | morpheus Hufnagel, Caradrina, [Phalaena] | 932256 | |
| morrisoni Barnes & Benjamin, Lithomoia | 932524 | |
| 9936 | morrisoni Grote, Eupsilia, [Scopelosoma] | 932591 | |
| morrisoni Druce, Gnophaela | 930355 | |
| Morrisonia Grote | 932800 | |
| morrisoniana Riley, Agrotis, preoccupied | 933515 | |
| morrisoniana Morrison, Agrotis | 933515 | |
| morrisonistigma Grote, Parabagrotis, [Agrotis] | 933643 | |
| 9712 | morsa Smith, Condica, [Perigea] | 932013 | |
| 11131 | mortua Grote, Schinia, [Anthoecia] | 932126 | |
| 8389 | mortualis Barnes & McDunnough, Renia | 930541 | |
| mortuorum Guenée, Syngrapha, [Plusia] | 931227 | |
| morula Rindge & Smith, Annaphila– ssp. | 931751 | |
| 9236 | morula Grote & Robinson, Acronicta, [Acronycta] | 931453 | |
| 8611 | mosca Dyar, Ianius, [Melipotis] | 930882 | |
| Motya Walker | 931154 | |
| Mouralia Walker | 931164 | |
| moxa Smith, Euxoa | 933328 | |
| 10519 | mucens Hübner, Morrisonia, [Septis] | 932801 | |
| mucorea Herrich-Schäffer, Heterocampa, [Drymonia] | 930086 | |
| 8593 | mucronata Grote, Cissusa, [Synedoida] | 930865 | |
| 10711.1 | muldersi Lafontaine & Hensel, Euxoa | 933325 | |
| 8774 | muliercula Guenée, Catocala | 930765 | |
| mulieris Strand, Papaipema | 932483 | |
| 10562 | mulina Schaus, Protorthodes, [Taeniocampa] | 933112 | |
| mulina Möschler, Anicla, [Agrotis] | 933212 | |
| mulleri Buchholz, Papaipema | 932510 | |
| multicolor Dyar, Apamea– ssp., [Hadena] | 932303 | |
| multicolor Crabo & Lafontaine, Lasionycta– ssp. | 932999 | |
| multifaria Walker, Morrisonia, [Xylina] | 932801 | |
| 8263 | multifaria Walker, Ctenucha, [Apistosia] | 930436 | |
| 9657 | multifera Walker, Caradrina | 932261 | |
| 8650 | multilinea Barnes & McDunnough, Tyrissa | 930969 | |
| 10446 | multilinea Walker, Leucania | 932945 | |
| multimaculata Brower, Platarctia, [Hyphoraia] | 930288 | |
| multiscripta Riley, Cerura– ssp. | 930030 | |
| multnoma Dyar, Clostera– ssp., [Ichthyura] | 930008 | |
| multoconspicua Reiff, Catocala | 930766 | |
| munda Hübner, Agrochola | 932615 | |
| munda of authors, Mocis, not Walker, 1865 | 930945 | |
| 8562 | mundissima Walker, Concana | 931157 | |
| 8489 | mundula Zeller, Ommatochila, [Thalpochares] | 930725 | |
| mundula Grote & Robinson, Caenurgina, [Drasteria] | 930924 | |
| mundula Dognin, Concana | 931157 | |
| 10855 | munis Grote, Euxoa, [Agrotis] | 933467 | |
| 9002.1 | munna Dyar, Tripudia, [Cobubatha] | 931258 | |
| muraenula Grote & Robinson, Agrotis | 933506 | |
| muralis Grote, Psaphida, [Dicopis] | 931548 | |
| murdoci Hampson, Euxoa | 933451 | |
| 10846 | murdocki Smith, Euxoa, [Agrotis] | 933451 | |
| 10473 | muricina Grote, Stretchia, [Acerra] | 932758 | |
| 8225 | muricolor Dyar, Opharus, [Pygarctia] | 930385 | |
| 9531.3 | murina Mustelin, Aseptis | 932633 | |
| 8250 | murina Stretch, Pygarctia, [Euchaetes] | 930423 | |
| murina Walker, Pagara, [Comacla] | 930396 | |
| murina Druce, Paectes, part | 931117 | |
| murrayi Gibson, Apamea– ssp., [Homoglaea] | 932351 | |
| Mursa Hulst | 930712 | |
| mus Alphéraky, Rhyacia, [Agrotis] | 933548 | |
| mus Troubridge & Crabo, Sympistis, [Oncocnemis] | 931807 | |
| 10904.1 | mus Lafontaine, Anicla | 933226 | |
| musa Smith, Agrotis, [Feltia] | 933522 | |
| 9599 | muscosa Hampson, Pseudobryomima, [Bryomima] | 932730 | |
| muscosa Grote, Euxoa, [Agrotis] | 933315 | |
| 9047 | muscosula Guenée, Protodeltote, [Erastria] | 931290 | |
| 9051 | musta Grote & Robinson, Lithacodia, [Erastria] | 931292 | |
| mustapha Dyar, Lithacodia, extralimital | 990015 | Note |
| mustelina Smith, Egira– ssp., [Xylomiges] | 932796 | |
| 10971 | mustelina Smith, Xestia, [Hadena] | 933578 | |
| mustelina Packard, Schizura, [Cecrita] | 930104 | |
| 10684.1 | mustelini Crabo & Lafontaine, Copablepharon | 933277 | |
| 10135.6 | mut Troubridge, Sympistis | 931880 | |
| 10686.3 | mutans Crabo & Lafontaine, Copablepharon | 933273 | |
| mutans Walker, Hyphantria, [Spilosoma] | 930319 | |
| 10224 | mutata Dod, Anarta, [Mamestra] | 932827 | |
| mutata Barnes & Benjamin, Agrotis, [Porosagrotis] | 933506 | |
| 10360 | mutilata Smith, Lasionycta, [Mamestra] | 932975 | |
| muzina of authors, Hypercompe, not Oberthür, 1881 | 930324 | |
| Mycterophora Newman | 930673 | |
| 8366 | mynesalis Walker, Tetanolita, [Bleptina] | 930516 | |
| 8270.1 | myrina Druce, Eucereon | 930444 | |
| 8048 | myrlosea Dyar, Crambidia | 930222 | |
| Myrmecopsis Barnes & Benjamin | 930454 | |
| 8280 | myrodora Dyar, Cosmosoma | 930458 | |
| myrrha Strecker, Catocala | 930828 | |
| Myrtale Druce | 931988 | |
| myrtilli Linnaeus, Anarta, excluded | 990050 | |
| 10481 | mys Dyar, Orthosia, [Stretchia] | 932766 | |
| mys Dyar, Orthosia– ssp., [Stretchia] | 932766 | |
| mystica Smith, Polia– ssp., [Mamestra] | 932867 | |
| mysticoides Barnes & Benjamin, Polia– ssp. | 932867 | |
| Mythimna Ochsenheimer | 932932 | |