| Gabara Walker | 930638 | |
| Gaberasa Walker | 930546 | |
10322.2 | gabrieli Troubridge & Crabo, Hadena | 932918 | |
| gabrieli Mikkola & Mustelin, Apamea– ssp. | 932343 | |
| Gadiana Walker | 930053 | |
| gagates Grote, Euxoa– ssp., [Agrotis] | 933315 | |
| galapagensis Schaus, Autoplusia, [Syngrapha] | 931172 | |
| Galapha Walker | 930986 | |
8692 | galbanata Morrison, Zale, [Homoptera] | 931026 | |
10023 | galena Smith, Viridemas | 931571 | |
| Galgula Guenée | 932248 | |
| galva Strecker, Cryphia, [Cerma] | 932195 | |
| gamma Dyar, Cisthene, [Illice] | 930184 | |
8914.1 | gamma Linnaeus, Autographa, [Phalaena] | 931192 | |
| gammina Staudinger, Autographa, [Plusia] | 931192 | |
| gammoides Speyer, Autographa, [Plusia] | 931195 | |
8583.1 | ganglio of authors, Athyrma, not Hübner, 1831 | 931085 | |
| gaosalis Walker, Phalaenostola, [Epizeuxis] | 930512 | |
| Gardinia Kirby | 930231 | |
| Gardinica Strand, repl. name | 930231 | |
| Garella Walker | 931140 | |
| gargantua Dyar, Bellura– ssp., [Sphida] | 932517 | |
| Gargaza Walker | 931416 | |
10488 | garmani Grote, Orthosia, [Graphiphora] | 932771 | |
| garthi Richards, Drasteria | 930896 | |
10249 | gatei Smith, Scotogramma, [Mamestra] | 932858 | |
11168 | gaurae Smith, Schinia, [Phalaena] | 932083 | |
9896 | gausapata Grote, Lithophane | 932564 | |
| geddesi Neumögen, Parasemia, [Nemeophila] | 930283 | |
| gelata Lefebvre, Apamea, [Hadena] | 932351 | |
| gelida Grote, Ellida | 930051 | |
10346.3 | gelida Crabo & Lafontaine, Lasionycta | 933002 | |
| gelida Guenée, Apamea, [Crymodes] | 932351 | |
| gelida Möschler, Grammia, [Euprepia] | 930250 | |
| gemina Maassen, Anticarsia, [Thermesia] | 931077 | |
| gemina Hübner, Apamea, [Noctua] | 932309 | |
9282 | geminata Smith, Agriopodes, [Moma] | 931495 | |
8507.1 | geminicincta Schaus, Metalectra | 930688 | |
9368 | geminimacula Dyar, Apamea, [Hadena] | 932346 | |
8402.1 | geminipunctalis Schaus, Macristis | 930557 | |
9159.1 | geminocula Ferris & Lafontaine, Tarache, [Acontia] | 931358 | |
8574 | gemmatalis Hübner, Anticarsia | 931077 | |
| gemmatilis of authors, Anticarsia, misspelled | 931077 | |
| generalis Walker, Renia, [Hypena] | 930532 | |
9536 | genetrix Grote, Aseptis, [Hadena] | 932640 | |
| geneura of authors, Grammia, not Strecker, 1880 | 930255 | |
| geneura Strecker, Grammia– ssp., [Arctia] | 930258 | |
9340 | genialis Grote, Apamea, [Hadena] | 932331 | |
10680 | geniculata Grote & Robinson, Feltia, [Agrotis] | 933495 | |
| gentilis Boisduval, Phaloesia, [Cocastra] | 930351 | |
8552 | gentilis Schaus, Anomis | 930609 | |
| gentilis Grote, Parastichtis, [Taeniosea] | 932625 | |
| geometralis Grote, Hemeroplanis, [Pleonectyptera], form | 930700 | |
| geometrica Grote, Parasemia, [Eupsychoma] | 930283 | |
8416 | geometriformis Hill, Mycterophora | 930677 | |
| geometroides Guenée, Pangrapta, [Marmorinia] | 930559 | |
| georgeana Beutenmüller, Catocala | 930805 | |
9680 | georgei Moore & Rawson, Elaphria, [Monodes] | 932232 | |
| georgiana Dyar, Heterocampa, [Disphragis] | 930074 | |
| georgica Grote, Ponometia, [Fruva] | 931325 | |
7917 | georgica Herrich-Schäffer, Hyperaeschra, [Notodonta] | 930010 | |
9913 | georgii Grote, Lithophane | 932573 | |
| georgii Grote, Lithophane– ssp. | 932573 | |
| Georyx Hübner | 933505 | |
| Gerba Walker | 930173 | |
| gerdis Smith, Sympistis, [Oncocnemis] | 931954 | |
| Gerespa Walker | 930868 | |
| gerhardi Barnes & Benjamin, Catocala– ssp. | 930836 | |
| germana Edwards, Annaphila | 931753 | |
9878 | germana Morrison, Lithomoia, [Calocampa] | 932524 | |
| germanalis Walker, Hypena | 930584 | |
9313 | geronimo Barnes, Alypiodes, [Pseudalypia] | 931978 | |
| Gerra Walker | 931966 | |
| Gerrodes Hampson | 931968 | |
| gertana Smith, Lacinipolia– ssp., [Mamestra] | 933018 | |
| gian Strecker, Euxoa, [Agrotis] | 933468 | |
7915 | gibbosa Smith, Nadata, [Phalaena] | 930046 | |
| gibsoni Bang-Haas, Pararctia– ssp., [Hyphoraia] | 930285 | |
| gibsoni McDunnough, Grammia– ssp., [Apantesis] | 930258 | |
| gigans McDunnough, Furcula– ssp., [Cerura] | 930027 | |
9181 | gigantea French, Panthea, [Platycerura] | 931395 | |
7972 | gigantea Barnes & Benjamin, Litodonta | 930064 | |
8519 | gigantea Smith, Gabara, [Eucalyptra] | 930640 | |
8239 | gigantea Barnes & McDunnough, Euchaetes, [Euchaetias] | 930413 | |
10545 | gigantoides Barnes & McDunnough, Homorthodes, [Eriopyga] | 933102 | |
| gigas Schmidt, Grammia– ssp. | 930244 | |
| gigas Smith, Orthodes– ssp., [Orthodea] | 933140 | |
10686 | gillaspyi Blanchard, Copablepharon | 933270 | |
| gilvipennis Grote, Cryptocala, [Agrotis] | 933553 | |
| gilvum Crabo & Lafontaine, Copablepharon– ssp. | 933289 | |
| ginaldus Dyar, Gonodonta, misspelled | 930614 | |
| gisela Meyer, Catocala | 930857 | |
9640 | glabella Morrison, Amphipyra, [Pyrophila] | 931546 | |
10325 | glaciata Grote, Hadena, [Mamestra] | 932915 | |
10648 | gladiaria Morrison, Agrotis | 933515 | |
9763 | gladiola Barnes, Chrysoecia, [Chamaeclea] | 931673 | |
| glans Grote, Argyrostrotis, [Phurys] | 930951 | |
| glauca Kleeman, Papestra, [Noctua] | 932893 | |
| glaucescens Walker, Coenipeta | 930990 | |
| glaucimacula Graeser, Ochropleura | 933529 | |
| glaucina Lafontaine & Mikkola, Xestia– ssp. | 933612 | |
| glaucipennis Walker, Melipotis, [Bolina] | 930869 | |
| glaucopis Hampson, Spiramater– ssp., [Polia] | 932883 | |
| glaucopis Harris, Psychmorpha | 931975 | |
| glaucovaria Walker, Anarta, [Apamea] | 932826 | |
11022 | glenni Buckett, Abagrotis | 933659 | |
10083 | glennyi Grote, Sympistis, [Oncocnemis] | 931835 | |
| glenwoodi Barnes & Benjamin, Eucirroedia– ssp., [Atethmia] | 932609 | |
| Gloanna Nye | 931623 | |
| Gloce Neave, misspelled | 930627 | |
| Gloee Hübner, suppressed | 930627 | |
10995.3 | gloriosa Crabo & Lafontaine, Cerastis | 933541 | |
| gloriosa Strecker, Schinia, [Heliothis] | 932145 | |
| Glottulini Guenée | 933209 | |
9307 | gloveri Grote & Robinson, Euscirrhopterus | 931972 | |
| Gluphisia Boisduval | 930018 | |
| Glympis Walker | 930713 | |
| Glyphidia Agassiz, emendation | 930018 | |
| Gnamptonychia Hampson | 930230 | |
10375 | gnata Grote, Lacinipolia, [Mamestra] | 933022 | |
| Gnophaela Walker | 930351 | |
10095.2 | goedeni Troubridge & Crabo, Sympistis, [Oncocnemis] | 931834 | |
| Gogana Walker | 930170 | |
| Gondysia Berio | 930956 | |
| gonella Strecker, Tarache, [Acontia] | 931367 | |
| gonellana Strand, Tarache | 931367 | |
| Goniapteryx Perty | 930632 | |
| Goniocarsia Hampson | 931079 | |
| Goniopteryx Agassiz, emendation | 930632 | |
| Gonitis Guenée, see note | 990005 | Note |
| Gonitis Guenée | 930601 | |
| Gonodes Hampson, preoccupied | 932247 | |
| Gonodes Druce | 932247 | |
| Gonodonta Hübner | 930612 | |
| Gonodontodes Hampson | 930621 | |
| gonoides McDunnough, Tarache | 931354 | |
| Gonoptera Berthold | 930600 | |
| Gonotis Moore, misspelled | 930601 | |
| goodelli Smith, Orthodes– ssp., [Mamestra] | 933141 | |
10289 | goodelli Grote, Orthodes, [Mamestra] | 933141 | |
8336 | gopheri Smith, Idia, [Epizeuxis] | 930485 | |
| Gortyna of authors, not Ochsenheimer, 1816 | 932464 | |
9523 | gortynoides Walker, Bellura | 932513 | |
9010.1 | goyanensis Hampson, Tripudia, [Cobubatha] | 931270 | |
| gracea Sperry, Homorthodes, [Polia] | 933098 | |
| graciella Guenée, Cydosia | 931255 | |
| gracilenta Graef, Androloma, [Alypia] | 931985 | |
11147 | gracilenta Hübner, Schinia | 932092 | |
| gracilis Lempke, Plusia, [Autographa] | 931236 | |
| gracilis Hübner, Schinia, suppressed | 932092 | |
8847 | gracilis Edwards, Catocala | 930833 | |
| gracillima of authors, Oxycnemis, not Grote, 1881 | 931612 | |
10043 | gracillinea Grote, Oxycnemis, [Oncocnemis] | 931612 | |
| gradata Walker, Zale, [Homoptera] | 931021 | |
11086 | graefiana Tepper, Schinia, [Melicleptria] | 932107 | |
| graefiana Grote, Pyreferra, [Scopelosoma] | 932583 | |
| graefii Grote, Acronicta, [Diphthera] | 931428 | |
| Graeperia Grote | 931305 | |
| grahami Benjamin, Oligia– ssp. | 932384 | |
10522 | graminis Linnaeus, Cerapteryx, [Phalaena] | 932808 | |
| graminivora Hampson, Dargida | 932926 | |
| Grammia Rambur | 930239 | |
10429 | grammivora Walker, Dargida | 932926 | |
| Grammophora Guenée | 931496 | |
| grande Strecker, Copablepharon, gender-conform | 933283 | |
8436 | grandimacula Schaus, Abablemma, [Phobolosia] | 930650 | |
10048 | grandimacula Barnes & McDunnough, Oxycnemis | 931617 | |
11148.1 | grandimedia Hardwick, Schinia | 932095 | |
10890 | grandipennis Grote, Dichagyris, [Agrotis] | 933246 | |
8766 | grandipennis Barnes & McDunnough, Doryodes | 930926 | |
| grandipuncta Guenée, Alabama, [Anomis] | 930611 | |
8641 | grandirena Haworth, Drasteria, [Phytometra] | 930915 | |
10300 | grandis Guenée, Lacanobia, [Hadena] | 932882 | |
| grandis Druce, Heliocheilus | 932059 | |
| grandis Speyer, Graphiphora, [Agrotis] | 933563 | |
10681 | grandis Strecker, Copablepharon, [Aedophron] | 933283 | |
10013 | grandis Smith, Psaphida, [Eutolype] | 931551 | |
9632 | granitosa Guenée, Callopistria, [Eriopus] | 932193 | |
8618 | graphica Hübner, Drasteria | 930891 | |
| graphica Hübner, Drasteria– ssp. | 930891 | |
| Graphiphora Ochsenheimer | 933562 | |
9004 | grapholithoides Möschler, Tripudia, [Thalpochares] | 931262 | |
| Graphophora Agassiz, emendation | 933562 | |
| Graptolitha Hübner | 932530 | |
9684 | grata Hübner, Elaphria | 932238 | |
9301 | grata Fabricius, Eudryas, [Bombyx] | 931966 | |
| gravis Edwards, Cisseps, [Scepsis] | 930442 | |
10653 | gravis Grote, Agrotis | 933518 | |
| gredosi Laever, Anarta, [Discestra] | 932826 | |
8730.1 | grenadensis Hampson, Focillidia | 930968 | |
| greta Smith, Tetanolita | 930517 | |
| greuteri Koutsaftikis, Tathorhynchus, [Tathorhyncus] | 930754 | |
9183.3 | greyi Anweiler, Panthea | 931397 | |
10131.1 | greyi Troubridge & Crabo, Sympistis, [Oncocnemis] | 931950 | |
8875 | grisatra Brower, Catocala | 930854 | |
| grisatra Smith, Xestia, [Semiophora] | 933583 | |
7925 | grisea Strecker, Odontosia, [Lophopteryx] | 930014 | |
| grisea Schnaider, Lymantria | 930141 | |
| grisea Packard, Cisthene | 930180 | |
| grisea Walker, Acronicta– ssp., [Acronycta] | 931433 | |
9212 | grisea Walker, Acronicta, [Acronycta] | 931433 | |
| grisea Denso, Orgyia | 930160 | |
| grisea Barnes & McDunnough, Dasychira– ssp., [Olene] | 930146 | |
| griseata Warren, Rhizedra | 932437 | |
| griseata Smith, Lacinipolia, [Mamestra] | 933029 | |
8306 | grisefacta Dyar, Dasychira, [Olene] | 930158 | |
| grisefacta Dyar, Dasychira– ssp., [Olene] | 930158 | |
10148 | griseicollis Grote, Sympistis, [Oncocnemis] | 931954 | |
8654 | griseipennis Grote, Lesmone, [Trama] | 930973 | |
| griseirena Hampson, Phlyctaina, [Nodaria] | 930546 | |
| griseiventris Rothschild, Pseudohemihyalea– ssp., [Hemihyalea] | 930382 | |
| griseocincta Harvey, Pseudorthodes– ssp., [Orthodes] | 933128 | |
| griseolineata Warren, Anomis, [Rusicada] | 930604 | |
| griseopunctata Barnes & McDunnough, Euchaetes, [Euchaetias] | 930410 | |
| griseor Dyar, Acronicta, [Apatela] | 931428 | |
9844 | grisescens Barnes & Lindsey, Gloanna, [Langona] | 931624 | |
11225 | grisescens Barnes & McDunnough, Grotella, [Antaplaga] | 931712 | |
| groelandica Zetterstedt, Mniotype, [Hadena] | 932703 | |
| groelandica Heydemann, Polia, [Aplecta] | 932871 | |
| groenlandica Staudinger, Syngrapha, [Plusia] | 931217 | |
8291 | groenlandica Wocke, Gynaephora, [Dasychira] | 930143 | |
| groenlandica Duponchel, Apamea, [Hadena] | 932351 | |
| grossbecci Hampson, Pygarctia | 930430 | |
| grossbecki Strand, Utetheisa | 930348 | |
| grossbecki Davis, Pygarctia | 930430 | |
10165 | groteana Dyar, Stylopoda, [Pseudacontia] | 931784 | |
| grotei Packard, Lycomorpha– ssp., [Anatolmis] | 930197 | |
10869 | grotei Franclemont & Todd, Dichagyris, [Loxagrotis] | 933231 | |
8083 | grotei Packard, Lycomorpha, [Anatolmis] | 930197 | |
| grotei Barnes & McDunnough, Apamea, [Parastichtis] | 932325 | |
| grotei Boisduval, Alypiodes, [Agarista] | 931977 | |
| grotei Butler, Acronicta, [Acronycta] | 931455 | |
9915 | grotei Riley, Lithophane, [Xylina] | 932581 | |
10021 | grotei Morrison, Copivaleria, [Valeria] | 931557 | |
| Grotella Harvey | 931699 | |
| Grotellaforma Barnes & Benjamin | 931721 | |
9043 | grotelliformis Barnes & McDunnough, Homolagoa | 931723 | |
| Grotellina Poole | 931699 | |
8818 | grotiana Bailey, Catocala | 930805 | |
8864 | grynea Cramer, Catocala, [Phalaena] | 930845 | |
| Grypotes Dyar, preoccupied | 931625 | |
10784.1 | guadalupensis Lafontaine & Byers, Euxoa | 933407 | |
| guadulpensis Guenée, Zale, [Homoptera] | 931021 | |
| guenei Grote, Catocala | 930789 | |
8664 | guerini Guenée, Euclystis, [Focilla] | 930988 | |
| gularis Grote, Euxoa, [Agrotis] | 933424 | |
9175 | gulnare Strecker, Bagisara, [Schinia] | 931247 | |
| gulosa Edwards, Orgyia | 930161 | |
| gunderi Barnes & Benjamin, Platypolia– ssp., [Eumichtis] | 932698 | |
| gussata Smith, Orthosia, [Mamestra] | 932776 | |
| gustata Dyar, Bagisara | 931244 | |
| gustis Smith, Oxycnemis | 931611 | |
9125 | guttata Grote, Spragueia | 931385 | |
| guttata Boisduval, Platyprepia, [Agarista] | 930289 | |
| guttifera Herrich-Schäffer, Lophocampa, [Phegoptera] | 930373 | |
7994 | guttivitta Walker, Heterocampa, [Cecrita] | 930086 | |
| guttula Herrich-Schäffer, Elaphria, [Celaena] | 932227 | |
| guttula Edwards, Metallata, [Antiblemma] | 931075 | |
| guyasuta Chermock & Chermock, Acronicta, form | 931461 | |
| gyasalis Walker, Phalaenophana, [Herminia] | 930487 | |
| Gymnopoda Felder, homonym | 930449 | |
| Gynaephora Hübner | 930141 | |
| gypsalis Grote, Zanclognatha, [Megachyta] | 930490 | |
| Gypsitea Tams | 933535 | |