All (in this database) Lepidoptera list (Scientific names): Part X
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- x (Jemadia sp.), see Jemadia sp.
- xagua (Lucas, 1857) (Astraptes)
- xagua Lucas, 1857 (Eudamus), see Astraptes xagua
- xague (Goniloba), see Astraptes xagua xagua
- xami (Reakirt, [1867]) (Callophrys)
- xami (Mitoura), see Callophrys xami
- xami (Thecla), see Callophrys xami
- xami (Xamia), see Callophrys xami
- xami Reakirt, [1867] (Thecla), see Callophrys xami
- Xamia Clench, 1961 (Theclinae), see Callophrys
- xandana (Kearfott, 1907) (Epinotia)
- xandana Kearfott, 1907 (Eucosma), see Epinotia xandana
- xanhoceros Borkhausen, 1792 (Phalaena), see Polyploca ridens
- xanites Butler, 1870 (Astictopterus), see Koruthaialos sindu sindu
- xanothothrix (Xeniades), see Xeniades orchamus orchamus
- xantaphes (Niconiades), see Niconiades xanthaphes
- Xantesthes (Arctiinae), see Argina
- xantha Steinhauser, 1991 (Dalla)
- xantha Kishida (Chrysaeglia)
- xantha (Grose-Smith, 1901) (Liptena xanthostola)
- Xantha Billberg, 1820 (Xyleninae), see Xanthia
- xantha (Liptena xanhostola), see Liptena xanthostola xantha
- xantha Kotzsch, 1936, see Colias cocandica cocandica
- xantha Schawerda, 1909 (Dichonia aprilinea f.), see Dichonia aprilina
- xanthalis Hampson, 1898 (Syngamia), see Orphanostigma angustale
- Xanthanomis Hampson, 1926 (Calpinae)
- Xanthanomis (Calpinae), see Xanthanomis
- xanthapes (Niconiades), see Niconiades xanthaphes
- xanthaphes Hübner, [1821] (Niconiades)
- xanthaptes (Niconiades), see Niconiades xanthaphes
- xantharcha (Meyrick, 1891) (Anthela)
- xantharcha Meyrick, 1891 (Darala), see Anthela xantharcha
- xanthe Bates, 1868 (Pachythone)
- xanthe Sepp, [1847] (Papilio), see Phoebis argante larra
- xanthe Woodforde, 1901 (Noctua castanea var.), see Xestia castanea
- xanthe [Schiffermüller], 1775 (Papilio), see Lycaena tityrus
- xanthea (Jones, 1908) (Hampsonodes)
- xanthea Jones, 1908 (Cosmia), see Hampsonodes xanthea
- xanthenes Germar, [1842] (Gortyna)
- xantherythra Hampson, 1900 (Asura)
- Xanthestes (Arctiinae), see Argina
- Xanthesthes Rambur, 1866 (Arctiinae), see Argina
- Xanthetis Hampson, 1900 (Lithosiinae)
- xanthia (Hampson, 1901) (Ormetica)
- Xanthia Ochsenheimer, 1816 (Xyleninae)
- xanthia (Hampson, 1902) (Xenochroa)
- Xanthia (Xyleninae), see Xanthia
- Xanthia Boisduval, 1829 (Xyleninae), see Jodia
- xanthia (Pseudelydna), see Xenochroa xanthia
- xanthia Boullet & Le Cerf, 1912 (Papilio ab.), see Papilio nephelus chaon
- xanthia Dufay, 1975, see Agrochola pistacinoides
- xanthia Hampson, 1901 (Idalus), see Ormetica xanthia
- xanthia Hampson, 1902 (Carea), see Xenochroa xanthia
- xanthia Le Cerf, 1911 (Pyropteron ceriaeformis ab.), see Synansphecia doryliformis doryliformis
- xanthialis (Guenée, 1854) (Portentomorpha)
- xanthialis Guenée in Boisduval & Guenée, 1854 (Botys), see Portentomorpha xanthialis
- xanthialis Hampson, 1898 (Bocchoris), see Eusabena paraphragma
- xanthiana Gaede, 1937 (Pseudelydna xanthia), see Xenochroa xanthia
- xanthiana Strand, 1917 (Pseudelydna xanthia ab.), see Xenochroa xanthia
- xanthias (Mabille, 1891) (Paronymus)
- xanthias (Rothschild & Jordan, 1906) (Parides erithalion)
- xanthias Grose-Smith, see Mycalesis phidon xanthias
- xanthias Mabille, 1891 (Carystus), see Paronymus xanthias
- xanthias Rothschild & Jordan, 1906 (Papilio erlaces), see Parides erithalion xanthias
- xanthias Turner, 1913 (Dichocrocis), see Rehimena auritincta
- xanthica (Hewitson, 1868) (Perisama oppelii)
- xanthica (Perisama xanthica), see Perisama oppelii xanthica
- xanthica (Perisama), see Perisama oppelii xanthica
- xanthica Hewitson, [1868] (Catagramma), see Perisama oppelii xanthica
- xanthica Joicey & Talbot, 1924 (Carcinarctia), see Carcinarctia rufa
- xanthica Lathy, 1926 (Thecla cyllarus ab.), see Strephonota cyllarissus
- xanthica Rousseau-Decelle, 1943 (Papilio garleppi interruptus f.), see Papilio torquatus torquatus
- xanthica, see Strephonota cyllarissus
- xanthicles (Godman & Salvin, [1881]) (Catoblepia)
- ?xanthicles (Heliconius hecale), see Heliconius hecale zuleika
- xanthicles (Catoblebia xanthicles), see Catoblepia xanthicles xanthicles
- xanthicles (Catoblebia), see Catoblepia xanthicles
- xanthicles Godman & Salvin, [1881] (Opsiphanes), see Catoblepia xanthicles
- xanthicus (Heliconius), see Heliconius hecale zuleika
- xanthicus Bates, 1864 (Heliconius), see Heliconius hecale zuleika
- Xanthidia Boisduval & Le Conte, [1829] (Coliadinae), see Eurema
- xanthina Lemaire, 1984 (Syssphinx)
- xanthina (Rothschild, 1907) (Rothschildia aricia)
- xanthina (Mabille, 1891) (Lento)
- xanthina Hampson, 1905 (Hydroeciodes)
- xanthina Oberthür, 1909 (Apatura iris)
- xanthina (Bates, 1866) (Scada zibia)
- xanthina Falkowitsch, 1963 (Aethes)
- xanthina (Scada), see Scada zibia xanthina
- xanthina Bates, 1866 (Ithomia), see Scada zibia xanthina
- xanthina Mabille, 1891 (Anycyloxipha), see Lento xanthina
- xanthindyma Boisduval, 1833 (Cosmophila), see Anomis flava
- xanthioides (Holland, 1892) (Paronymus)
- xanthioides Guenée, 1852 (Perigea)
- xanthioides Holland, 1892 (Pardaleodes), see Paronymus xanthioides
- xanthippe (Latreille, [1824]) (Sarbia)
- xanthippe Corbet, 1937 (Celastrina), see Udara rona catius
- xanthippe Gray, 1832 (Erycina), see Chorinea licursis
- xanthippe Latreille, [1824] (Hesperia), see Sarbia xanthippe
- xanthippus (C. & R. Felder, 1860) (Danaus gilippus)
- xanthippus (Proteides), see Sarbia xanthippe xanthippe
- xanthippus C. & R. Felder, 1860 (Danais gilippus), see Danaus gilippus xanthippus
- xanthippus Staudinger, 1886 (Agrias pericles var.), see Agrias amydon phalcidon
- xanthis Holland, 1890, see Liptena xanthis
- xanthis Hübner, [1819] (Brassolis), see Catoblepia xanthus xanthus
- xanthistis Hampson, 1898 (Cosmosoma)
- xantho (Schaus, 1913) (Virga)
- xantho (C. & R. Felder, 1860) (Callithomia lenea)
- xantho C. & R. Felder, 1860 (Ithomia lenea), see Callithomia lenea xantho
- xantho Hayward, 1939 (Telemiades), see Telemiades avitus
- xantho Le Cerf, 1924 (Apatura elis fabaris f.), see Doxocopa elis
- xantho Schaus, 1913 (Megistias), see Virga xantho
- Xanthoarctia Travassos, 1951 (Arctiinae)
- Xanthoarctia (Arctiinae), see Xanthoarctia
- xanthobasis Zeller, 1875 (Setiostoma)
- xanthobasis (Hayward, 1939) (Phlebodes)
- xanthobasis Druce, 1898 (Sarosa)
- xanthobasis Hayward, 1939 (Vistigma), see Phlebodes xanthobasis
- xanthobrunnea Hayward, 1935 (Actinote pellenea f.), see Actinote pellenea calymna
- xanthobrunnea Warren, 1895 (Adelotypa), see Adelotypa bolena
- xanthocampa Dyar, 1905 (Porthesia similis var.), see Euproctis similis
- Xanthocastnia Houlbert, 1918 (Castniinae)
- Xanthocastnia (Castniinae), see Xanthocastnia
- xanthocaudatus Stoneham, 1932 (Papilio dardanus m.f.), see Papilio dardanus meseres
- xanthocellis Boullet & Le Cerf, 1912 (Papilio ab.), see Eurytides serville serville
- xanthocera Turner, 1922 (Anthela)
- xanthocera Hampson, 1898 (Cosmosoma)
- xanthocera (Walker, 1856) (Nyridela)
- xanthocera (Mochloptera), see Nyridela xanthocera
- xanthocera Rothschild & Jordan, see Apaturina erminea xanthocera
- xanthocera Walker, 1856 (Gymnelia), see Nyridela xanthocera
- xanthoceras Oberthür, 1902 (Heliconia), see Heliconius demeter bougueti
- xanthocharis Clench, 1955 (Chrysamma)
- xanthochlora Walker, 1865 (Cyphanta)
- xanthochlora (Eurema xanthochlora), see Eurema xantochlora xantochlora
- xanthochlora (Terias), see Eurema xantochlora
- xanthochloris (Boisduval, 1840) (Olivenebula)
- xanthochloris (Polyphaenis), see Olivenebula xanthochloris
- xanthochloris Boisduval, 1840 (Polyphaenis), see Olivenebula xanthochloris
- xanthochroa Butler, 1886 (Gonitis), see Anomis nigritarsis
- xanthochyta (Turner, 1933) (Pachynoa)
- xanthochyta Turner, 1933 (Hypermeces), see Pachynoa xanthochyta
- Xanthocleis (Danainae), see Thyridia
- Xanthocleis Boisduval, 1870 (Danainae), see Thyridia
- xanthocles Bates, 1862 (Heliconius)
- xanthoclora (Eurema), see Eurema xantochlora
- Xanthocosmia Sugi, 1982 (Xyleninae)
- Xanthocosmia (Xyleninae), see Xanthocosmia
- Xanthocrambus Bleszynski, 1955 (Crambinae)
- Xanthocrambus (Crambinae), see Xanthocrambus
- Xanthocraspeda (Lithosiinae), see Lyclene
- Xanthocraspeda Hampson, 1894 (Lithosiinae), see Lyclene
- xanthocraspedum Stichel, 1910 (Metacharis)
- xanthocraspis (Hampson, 1900) (Eilema)
- xanthocraspis Hampson, 1900 (Ilema), see Eilema xanthocraspis
- xanthocrossa Turner, 1913 (Emphylica)
- xanthocrypta (Dyar, 1913) (Loxostegopsis)
- xanthocyanea Hübner, [1819] (Noctua), see Hadena filograna
- xanthodactyla (Treitschke, 1833) (Calyciphora)
- xanthodactyla Treitschke, 1833 (Alucita), see Calyciphora xanthodactyla
- xanthodelta (Lower, 1897) (Poliodule)
- xanthodelta (Poliodula), see Poliodule xanthodelta
- xanthodelta Lower, 1897 (Scoliacma), see Poliodule xanthodelta
- Xanthodes Guenée, 1852 (Bagisarinae)
- Xanthodes (Bagisarinae), see Xanthodes
- xanthodesma Stichel, 1928 (Orimba), see Calospila siaka siaka
- xanthodice (Lucas, 1852) (Tatochila)
- xanthodice Lucas, 1852 (Pieris), see Tatochila xanthodice
- Xanthodisca Aurivillius, [1925] (Hesperiinae)
- Xanthodisca (Hesperiinae), see Xanthodisca
- xanthodryas (Phalonia), see Cochylidia richteriana
- xanthodryas Meyrick, 1936 (Phalonia), see Cochylidia richteriana
- Xanthodule (Lithosiinae), see Anestia
- Xanthodule Butler, 1886 (Lithosiinae), see Anestia
- Xanthoecia Hampson, 1908 (Xyleninae), see Gortyna
- xanthoenobares Dyar, 1911 (Dioryctria), see Dioryctria auranticella
- xanthogaster (Thomas, 1994) (Spilarctia)
- xanthogaster Druce, 1898 (Herea)
- xanthogastes Fang, 2000 (Spilarctia)
- xanthogastra (Perty, 1834) (Gymnelia)
- xanthogastra Perty, 1834 (Glaucopis), see Gymnelia xanthogastra
- xanthogramma Hampson, 1900 (Holochrea)
- xanthogramma Wallengren (Epidromia)
- xanthogramma Bates, 1868 (Siseme pallas)
- xanthogramma (Staudinger, 1870) (Conobathra)
- xanthogramma (Meyrick, 1912) (Choreutis)
- xanthogramma (Anthophila), see Choreutis xanthogramma
- xanthogramma (Eutromula), see Choreutis xanthogramma
- xanthogramma (Simaethis), see Choreutis xanthogramma
- xanthogramma Meyrick, 1912 (Simaethis), see Choreutis xanthogramma
- xanthographa ([Schiffermüller], 1775) (Xestia)
- xanthographa [Schiffermüller], 1775 (Noctua), see Xestia xanthographa
- xanthograpta (Hampson, 1915) (Amata)
- Xanthograpta Hampson, 1910 (Acontiinae)
- Xanthograpta (Acontiinae), see Xanthograpta
- xanthograpta (Callitomis), see Amata xanthograpta
- xanthograpta Hampson, 1915 (Callitomis), see Amata xanthograpta
- xanthoides Dufay, 1968 (Euchalcia)
- xanthoides (Boisduval, 1852) (Lycaena)
- xanthoides (Walker, 1863) (Sparganothis)
- xanthoides (Gaeides), see Lycaena xanthoides
- xanthoides Boisduval, 1852 (Polyommatus), see Lycaena xanthoides
- xantholas (Pyrausta), see Pyrausta xanthomela
- xantholeuca (Sharpe, 1904) (Colotis evenina)
- Xantholeuca Stephens, 1831 (Xyleninae), see Jodia
- xantholeuca (Potanamax), see Potamanaxas xantholeuce
- xantholeuca Plötz, 1884 (Butleria), see Dalla dimidiatus dimidiatus
- xantholeucalis (Guenée, 1854) (Patissa)
- xantholeuce (Mabille, 1888) (Potamanaxas)
- xantholeuce (Potamanax), see Potamanaxas xantholeuce
- xantholeuce Mabille, 1888 (Ephyriades), see Potamanaxas xantholeuce
- xantholoma (Snellen, 1879) (Nishada)
- xantholoma Snellen, 1879 (Lithosia), see Nishada xantholoma
- xantholopha Hampson, 1900 (Caulocera)
- Xantholopha Schaus, 1899 (Lithosiinae)
- xantholopha (Hampson, 1896) (Macrobarasa)
- xantholopha (Hampson, 1902) (Athetis)
- Xantholopha Hampson, 1900 (Lithosiinae), see Xantholopha
- xantholopha Hampson, 1896 (Blenina), see Macrobarasa xantholopha
- xantholopha Hampson, 1902 (Caradrina), see Athetis xantholopha
- xanthoma (Leech, 1898) (Amata)
- xanthoma (Syntomis), see Amata xanthoma
- xanthoma Leech, 1898 (Syntomis), see Amata xanthoma
- Xanthomaenas Roepke, 1940 (Arctiinae), see Lemyra
- xanthomargo Hayward, 1942 (Pyrrhopyge), see Elbella luteizona
- xanthomela Druce, 1899 (Nodozana)
- xanthomela Meyrick, 1884 (Deuterarcha)
- xanthomela (Hampson, 1913) (Pyrausta)
- xanthomela Hampson, 1913 (Pachyzancla), see Pyrausta xanthomela
- xanthomela Walker, 1860 (Syntomis), see Amata huebneri
- xanthomelaena Godman & Salvin, see Eurema candida xanthomelaena
- xanthomelas (Hampson, 1900) (Chiretolpis)
- xanthomelas Lower, 1892 (Termessa)
- xanthomelas (Esper, [1781]) (Nymphalis)
- xanthomelas Walker, 1863 (Mapeta)
- xanthomelas Boisduval, 1874 (Agarista), see Immetalia bernsteinii
- xanthomelas Esper, [1781] (Papilio), see Nymphalis xanthomelas
- xanthomelas Hampson, 1900 (Tricholepis), see Chiretolpis xanthomelas
- xanthomelas Röber, 1908 (Pieris mandela), see Pieriballia viardi apicalis
- xanthomelas [Schiffermüller], 1775 (Papilio), see Nymphalis xanthomelas
- xanthomera (Meyrick & Lower, 1902) (Neohesperilla)
- xanthomera Meyrick & Lower, 1902 (Telesto), see Neohesperilla xanthomera
- Xanthomis Hampson, 1898 (Ctenuchinae)
- xanthomista (Hübner, [1819]) (Polymixis)
- xanthomista Draudt, 1931 (Acronycta euphorbiae f.), see Acronicta euphorbiae
- xanthomista Hübner, [1819] (Noctua), see Polymixis xanthomista
- Xanthomixis Beck, 1996 (Xyleninae), see Polymixis
- xanthone Röber, 1924 (Dismorphia theucharila)
- xanthone Bates, 1862 (Napeogenes), see Napeogenes rhezia rhezia
- xanthonephra Turner, 1908 (Naarda)
- Xanthoneura Eliot, 1978 (Hesperiinae)
- xanthonotata Oberthür, 1881 (Ecpantheria), see Hypercompe muzina
- xanthopa (Holland, 1893) (Eilema)
- xanthopa (Ilema), see Eilema xanthopa
- xanthopa Holland, 1893 (Lepista), see Eilema xanthopa
- Xanthopan Rothschild & Jordan, 1903 (Sphinginae)
- Xanthopan (Sphinginae), see Xanthopan
- Xanthopastis Hübner, [1821] (Hadeninae)
- Xanthopastis (Hadeninae), see Xanthopastis
- xanthopeplus Holland, 1892 (Pardaleodes)
- xanthopera (Hampson, 1907) (Lyclene)
- xanthopera Hampson, 1907 (Tricholepis), see Lyclene xanthopera
- xanthopera Hampson, 1908 (Eriopus), see Callopistria rivularis
- xanthoperas Hampson, 1898 (Eucereon)
- Xanthophaeina Hampson, 1901 (Arctiinae)
- Xanthophaeina (Arctiinae), see Xanthophaeina
- xanthophane Hopffer, 1874 (Dircenna adina)
- xanthophane (Dircenna), see Dircenna adina xanthophane
- xanthophanes (Boursin, 1944) (Orohadena)
- xanthophanes (Pseudohadena), see Orohadena xanthophanes
- xanthophanes Boursin, 1944 (Pseudohadena arvicola), see Orohadena xanthophanes
- xanthophila Röber, 1909 (Kricogonia f.), see Kricogonia lyside
- xanthophila Schawerda, 1928 ( f.), see Euxoa haverkampfi haverkampfi
- xanthophila Walker, 1865 (Menapia), see Bireta longivitta
- xanthophila Walker, [1863] (Acontia), see Earias insulana
- xanthophilus Röber, 1925 (Papilio dolicaon), see Eurytides dolicaon deileon
- xanthophoba (Schawerda, 1922) (Hadena caesia)
- xanthophoba Schawerda, 1922 (Dianthoecia caesia var.), see Hadena caesia xanthophoba
- xanthophthalma Röber, 1903 (Hyantis hodeva)
- xanthophthalma Röber, 1903 (Hyantis), see Hyantis hodeva xanthophthalma
- xanthophthalmus Staudinger, 1889 ( leda var.), see Melanitis zitenius xanthophthalmus
- xanthophthalmus Staudinger, 1889, see Melanitis zitenius xanthophthalmus
- xanthophylla Hreblay & Ronkay, 1998 (Xanthia)
- Xanthophysa Munroe, 1964 (Glaphyriinae)
- Xanthophysa (Glaphyriinae), see Xanthophysa
- xanthopila[sic!] Dalla Torre & Strand, 1925, see Tinthia xanthospila
- xanthopis Hampson, 1910 (Leucophlebia)
- xanthopis (Hampson, 1909) (Caradrina)
- xanthopis (Leucophlebia afra), see Leucophlebia xanthopis
- xanthopis Hampson, 1909 (Proxenus), see Caradrina xanthopis
- xanthoplaca Turner, 1913 (Euthorybeta)
- xanthoplaga (Hampson, 1911) (Evonima)
- xanthoplaga (Meganola), see Evonima xanthoplaga
- xanthoplaga Hampson, 1911 (Roeselia), see Evonima xanthoplaga
- xanthopleura Meyrick, 1931 (Ethmia)
- xanthopleura (Hampson, 1898) (Virbia)
- xanthopleura (Holland, 1898) (Myopsyche)
- Xanthopleura Hampson, 1898 (Ctenuchinae)
- xanthopleura Godman & Salvin, 1868 (Papilio)
- xanthopleura (Pterourus), see Papilio xanthopleura
- xanthopleura Hampson, 1898 (Ptychoglene), see Virbia xanthopleura
- xanthopleura Holland, 1898 (Syntomoides), see Myopsyche xanthopleura
- xanthopleura Turner, 1899 (Tigrioides), see Eilema plana
- xanthopoecilus (Holland, 1893) (Anthene)
- xanthopogon (Kollar, [1844]) (Choaspes)
- xanthopogon Kollar, [1844] (Hesperia), see Choaspes xanthopogon
- xanthopolys Dyar, 1926 (Atrytone), see Zariaspes mythecus
- Xanthoptera Guenée, 1852 (Acontiinae), see Thioptera
- Xanthoptera Sodoffsky, 1837 (Noctuinae), see Noctua
- xanthoptera Apolinar, 1914 (Nathalis var.), see Nathalis plauta
- xanthoptera Oberthür, 1911 (Eyprepia), see Spiris striata
- xanthoptes (Niconiades), see Niconiades xanthaphes
- xanthopyga (Mabille, 1890) (Heraclia)
- xanthopyga (Turner, 1909) (Donuca)
- xanthopyga (Rothia), see Heraclia xanthopyga
- xanthopyga Mabille, 1890 (Eusemia), see Heraclia xanthopyga
- xanthopyga Turner, 1909 (Calliodes), see Donuca xanthopyga
- xanthopygella (Staudinger, 1859) (Scythris)
- xanthopygella Staudinger, 1859 (Butalis), see Scythris xanthopygella
- xanthorhina Herrich-Schäffer, [1854] (Eurata), see Hyda basilutea
- xanthorhoda (Boursin, 1937) (Caradrina)
- xanthorhoda Boursin, 1937 (Elaphria), see Caradrina xanthorhoda
- Xanthorhoe Hübner, [1825] (Larentiinae)
- Xanthorhoe (Larentiinae), see Xanthorhoe
- xanthorrhoa Zeller, 1877, see Ethmia notatella
- xanthorrhoea Felder & Rogenhofer, 1874 (Serrodes), see Donuca spectabilis
- xanthorrhoea Oberthür, 1916 (Euproctis chrysorrhoea f.), see Euproctis chrysorrhoea
- xanthosa (Stichel, 1910) (Emesis)
- xanthosa (Charis), see Emesis xanthosa
- xanthosa Stichel, 1910 (Charmona), see Emesis xanthosa
- xanthoscota (Lower, 1903) (Glycythyma)
- xanthoscota Lower, 1903 (Nacoleia), see Glycythyma xanthoscota
- Xanthosetia Stephens, 1829 (Tortricinae), see Agapeta
- xanthosoma (Rebel, 1900) (Pseudatemelia)
- xanthosoma (Ropke, 1954) (Spilarctia)
- xanthosoma Dognin, 1912 (Syntomostola)
- xanthosoma (Turner, 1898) (Amata)
- xanthosoma Hampson, 1910 (Phaegorista)
- xanthosoma Jordan, 1912 (Cruria donowani), see Cruria donowani
- xanthosoma Staudinger, see Graphium macareus xanthosoma
- xanthosoma Turati, 1924 (Papilio machaon saharae f.), see Papilio saharae
- xanthosoma Turner, 1898 (Hydrusa), see Amata xanthosoma
- xanthosphenica (Pedaliodes), see Pedaliodes xanthosphenisca
- xanthosphenisca Hayward, 1968 (Pedaliodes)
- xanthospila Hampson, 1898 (Rhynchopyga)
- xanthospila (Hampson, 1900) (Cisthene)
- xanthospila Hampson, 1919 (Tinthia)
- Xanthospila Houlbert, 1918 (Castniinae), see Tosxampila
- xanthospila Hampson, 1900 (Illice), see Cisthene xanthospila
- Xanthospilopteryx (Agaristinae), see Heraclia
- Xanthospilopteryx Wallengren, 1858 (Agaristinae), see Heraclia
- xanthospilos (Hübner, [1817]) (Candalides)
- xanthospilos Hübner, [1817] (Rusticus), see Candalides xanthospilos
- xanthospora Meyrick, 1912, see Grapholita caeruleana
- xanthostacta Hampson, 1903 (Eressa), see Eressa strepsimeris
- xanthostatis Dannehl, 1925 ( f.), see Xestia xanthographa
- xanthostaxis Lempke, 1939 ( f.), see Diarsia rubi
- xanthostaxis Lempke, 1962 ( f.), see Diarsia mendica mendica
- Xanthostege Munroe, 1976 (Pyraustinae)
- Xanthostege (Pyraustinae), see Xanthostege
- xanthosticha (Turner, 1936) (Imma)
- xanthosticha (Leucania), see Mythimna semicana
- xanthosticha Turner, 1911 (Cirphis), see Mythimna semicana
- xanthosticha Turner, 1936 (Dysapura), see Imma xanthosticha
- xanthosticta (Hampson, 1901) (Machadoia)
- xanthosticta (Hampson, 1894) (Macrobarasa)
- xanthosticta Apolinar, 1926 (Heliconius hermogenes ab.), see Heliconius cydno weymeri
- xanthosticta Hampson, 1894 (Argyrothripa), see Macrobarasa xanthosticta
- xanthosticta Hampson, 1901 (Hemihyalea), see Machadoia xanthosticta
- xanthosticta Plötz, 1882 (Hesperia), see Evansiella cordela
- xanthostictella Dietz, 1905 (Tinea)
- xanthostola (Holland, 1890) (Liptena)
- xanthostola (Bates, 1862) (Hypothyris)
- xanthostola (Garsaurites), see Hypothyris xanthostola
- xanthostola (Garsauritis), see Hypothyris xanthostola
- xanthostola Bates, 1862 (Ceratinia), see Hypothyris xanthostola
- Xanthotaenia Westwood, [1858] (Morphinae)
- Xanthotaenia (Morphinae), see Xanthotaenia
- xanthotaenia (Catasticta truncata), see Catasticta truncata
- xanthotaenia (Chamaelimnas villagomes), see Chamaelimnas cydonia
- xanthotaenia Röber, 1924 (Catasticta), see Catasticta truncata
- xanthotaenia Stichel, 1910 (Chamaelimnas villagomes), see Chamaelimnas cydonia
- xanthothrix Boursin, 1960 (Conisania)
- Xanthothrix H. Edwards, 1878 (Stiriinae)
- Xanthothrix (Stiriinae), see Xanthothrix
- xanthothrix Herrich-Schäffer, 1869 (Goniloba), see Xeniades orchamus orchamus
- xanthothrix Mabille, 1891 (Erycides), see Pyrrhopygopsis quispica
- ?xanthotypa Turner, 1940 (Cheliosea)
- xanthotypa ("Heliocaes"), see Cheliosea xanthotypa
- Xanthotype Warren, 1894 (Ennominae)
- Xanthotype (Ennominae), see Xanthotype
- xanthovittana Desvignes, 1845 (Peronea unicolorana var.), see Acleris cristana
- xanthoxli Derzhavets, 1977, see Hyles zygophylli
- xanthoza (Colotis ione f.), see Colotis ione
- xanthozona Stichel, 1910 (Ancyluris miranda), see Ancyluris inca miranda
- xanthura (Godman, [1901]) (Tromba)
- xanthura (Plötz, 1880) (Nyctemera)
- xanthura (Turner, 1905) (Amata)
- xanthura (Schaus, 1899) (Progona)
- xanthura (Parablavia), see Progona xanthura
- xanthura Godman in Godman & Salvin, [1901] (Thracides), see Tromba xanthura
- xanthura Plötz, 1880 (Leptosoma), see Nyctemera xanthura
- xanthura Schaus, 1899 (Parablavia), see Progona xanthura
- xanthura Turner, 1905 (Syntomis), see Amata xanthura
- xanthurus Rothschild & Jordan, 1903 (Macroglossum corythus)
- xanthurus Rothschild & Jordan, 1903 (Macroglossum), see Macroglossum corythus xanthurus
- xanthus Rothschild & Jordan, 1903 (Cephonodes)
- xanthus Mielke, 1989 (Vidius)
- xanthus Edwards, 1878 (Pyrgus)
- xanthus (Linnaeus, 1758) (Catoblepia)
- xanthus Ehrmann, 1918 (Parnassius smintheus)
- xanthus (Catoblebia xanthus), see Catoblepia xanthus xanthus
- xanthus (Catoblebia), see Catoblepia xanthus
- xanthus (Parnassius phoebus), see Parnassius smintheus xanthus
- xanthus Linnaeus, 1758 (Papilio), see Catoblepia xanthus
- xanthus Rothschild & Jordan, 1906 (Protambulyx), see Protambulyx eurycles
- xanthus[sic?] (Sphinx), see Sphinx xantus
- xanticles (Bates, 1863) (Protographium philolaus)
- xanticles (Eurytides), see Protographium philolaus xanticles
- xanticles (Neographium), see Protographium philolaus xanticles
- xanticles (Papilio), see Protographium philolaus xanticles
- xanticles Bates, 1863 (Papilio), see Protographium philolaus xanticles
- Xantippe Ragonot, 1891 (Chrysauginae)
- Xantippe (Chrysauginae), see Xantippe
- xantippe (Pyrrhopyga), see Sarbia xanthippe xanthippe
- xantippe Butler, 1870 (Taygetis), see Taygetis ypthima
- Xantippides Dyar, 1908 (Chrysauginae), see Arta
- xantochlora (Kollar, 1850) (Eurema)
- xantochlora Kollar, 1850 (Terias), see Eurema xantochlora
- xantohtaenia (Catasticta truncata), see Catasticta truncata
- xantolica Warren, 1895 (Pterocypha), see Obila praecurraria
- xantometata (Walker, 1862) (Mellilla)
- ?xantopthalmus[?] ( zitenius), see Melanitis zitenius xanthophthalmus
- xantostictum Hampson, 1898 (Cosmosoma)
- xantozona Fibiger & Ronkay, 1991 (Autophila iranica)
- xantus Cary, 1963 (Sphinx)
- xarex (Cecropterus), see Autochton zarex
- xarifa (Hewitson, [1853]) (Melanis smithiae)
- xarifa (Lymnas), see Melanis smithiae xarifa
- xarifa (Malenis), see Melanis smithiae xarifa
- xarifa Hewitson, [1853] (Limnas), see Melanis smithiae xarifa
- xarima (Thespieus), see Thespieus xarina
- xarina Hayward, 1948 (Thespieus)
- xarippe (Butler, 1870) (Thespieus)
- xarippe Butler, 1877 (Catocala fulminea)
- xarippe Butler, 1870 (Proteides), see Thespieus xarippe
- xarippe Butler, 1877 (Catocala), see Catocala fulminea xarippe
- xasta Barnes & McDunnough, 1910 (Euxoa)
- xauensis Reiss, 1943 (Zygaena loyselis)
- xavieri (Le Crom & Johnson, 1997) (Thaeides)
- xavieri Le Crom & Johnson, 1997 (Solanorum), see Thaeides xavieri
- xavierorum Anken, 1994 (Pareuptychia), see Pareuptychia summandosa
- xelianthe Grose-Smith, see Delias ennia xelianthe
- xena Gozmány, 1959 (Aprominta)
- xena Ronkay, 1986 (Autophila)
- xena Jordan, 1913 (Gonioprocris)
- xenagoras Hewitson, 1875 (Prepona deiphile)
- xenagoras (Prepona), see Prepona deiphile xenagoras
- xenaides (Eurytides), see Mimoides xeniades xeniades
- xenana (Taygetis), see Taygetis cleopatra
- xenana Butler, 1869 (Taygetis), see Taygetis cleopatra
- Xenandra C. & R. Felder, [1865] (Riodinidae)
- Xenandra (Riodinidae), see Xenandra
- Xenapamea Sugi, 1970 (Xyleninae)
- Xenapamea (Xyleninae), see Xenapamea
- xenarchus (Noreppa chromus), see Noreppa chromus chromus
- xenarchus (Papilio), see Mimoides phaon phaon
- xenarchus Fruhstorfer, 1916 (Prepona chromus), see Noreppa chromus chromus
- xenarchus Hewitson, 1861 (Papilio), see Mimoides phaon phaon
- xenarchus Mabille, 1891 (Pamphila), see Molo mango
- xenares C. & R. Felder, 1864 (Papilio), see Parides anchises osyris
- xeneas (Hewitson, 1866) (Bicyclus)
- xeneoides Condamin, 1961 (Bicyclus)
- Xenephestia Gozmány, 1958 (Phycitinae), see Cadra
- xeneta (Hewitson, 1877) (Calycopis)
- xeneta (Thecla), see Calycopis xeneta
- xeneta Hewitson, 1877 (Thecla), see Calycopis xeneta
- xenia Jordan, 1913 (Massaga)
- xenia (Hewitson, [1853]) (Melanis)
- xenia Hering, 1936 (Phyllocnistis)
- xenia Doubleday, 1847 (Limnas), see Melanis xenia xenia
- xenia Freyer, 1845, see Melanargia russiae caucasiaca
- xenia Fruhstorfer, 1916 (Ageronia chloë), see Hamadryas chloe daphnis
- xenia Grose-Smith, 1895, see Hypolycaena xenia
- xenia Hewitson, [1853] (Limnas), see Melanis xenia
- xenia Schultz, 1908 ( ab./f.), see Zerynthia polyxena
- Xeniades Godman in Godman & Salvin, [1900] (Hesperiinae)
- xeniades (Hewitson, 1867) (Mimoides)
- Xeniades (Hesperiinae), see Xeniades
- xeniades (Eurytides), see Mimoides xeniades
- xeniades Hewitson, 1867 (Papilio), see Mimoides xeniades
- xeniades Stichel, 1910 (Lymnas erythrus), see Melanis xenia xenia
- xenias (Meyrick, 1891) (Kasyniana)
- xenica (Bates, 1864) (Memphis philumena)
- Xenica Westwood, [1851] (Satyrinae), see Tisiphone
- xenica (Anaea), see Memphis philumena xenica
- xenica (Memphis), see Memphis philumena xenica
- xenica Bates, 1864 (Paphia), see Memphis philumena xenica
- xenica Meyrick, 1911, see Erechthias zebrina
- Xeniconympha Novickij, 1923 (Satyrinae), see Nesoxenica
- xeniolalis Hulst, 1866, see Blepharomastix aplicalis
- xenippa (Hall, 1935) (Memphis)
- xenippa (Anaea), see Memphis xenippa
- xenippa (Memphis xenocles), see Memphis xenippa
- xenippa Hall, 1935 (Anaea), see Memphis xenippa
- Xenocentris Meyrick, 1889 (Sterrhinae), see Idaea
- Xenochlorodes Warren, 1897 (Geometrinae)
- Xenochlorodes (Geometrinae), see Xenochlorodes
- Xenochroa Felder, 1874 (Chloephorinae)
- Xenochroa (Chloephorinae), see Xenochroa
- xenoclea Hewitson, [1853] (Heliconius melpomene)
- xenoclea (Heliconius), see Heliconius melpomene xenoclea
- xenoclea C. & R. Felder, 1861 (Perisama), see Perisama euriclea
- xenoclea Hewitson, [1853] (Heliconia), see Heliconius melpomene xenoclea
- xenocles (Westwood, 1850) (Memphis)
- xenocles (Doubleday, 1842) (Graphium)
- xenocles (Anaea), see Memphis xenocles
- xenocles (Paranticopsis), see Graphium xenocles
- xenocles ?phrontis (Paranticopsis xenocles), see Graphium xenocles xenocles
- xenocles Westwood, 1850 (Paphia), see Memphis xenocles
- xenoclides Fruhstorfer, see Graphium xenocles xenoclides
- xenocrates (Westwood, 1850) (Polygrapha)
- xenocrates (Anaea), see Polygrapha xenocrates
- xenocrates (Phocides), see Phocides vulcanides
- xenocrates Bell, 1932 (Phocides), see Phocides vulcanides
- xenocrates Westwood, 1850 (Paphia), see Polygrapha xenocrates
- xenodamas (Battus polydamas), see Battus polydamas cebriones
- xenodamas Hübner, [1825] (Ithobalus), see Battus polydamas cebriones
- xenodice (Druce, 1884) (Cyanopepla)
- xenodice Druce in Godman & Salvin, 1884 (Charidea), see Cyanopepla xenodice
- xenodora (Meyrick, 1886) (Darantasia)
- xenodora (Bombiliodes), see Bombiliodes xenodorus
- xenodora Meyrick, 1886 (Peronetis), see Darantasia xenodora
- xenodorus (Druce, 1884) (Bombiliodes)
- xenodorus Druce in Godman & Salvin, 1884 (Gymnelia), see Bombiliodes xenodorus
- Xenodryas Gistl, 1848 (Catocalinae), see Phyllodes
- Xenoecista Warren, 1897 (Ennominae)
- Xenoecista (Ennominae), see Xenoecista
- xenogama (Meyrick, 1884) (Metasia)
- xenogama Meyrick, 1884 (Eurycreon), see Metasia xenogama
- Xenogenes Meyrick, 1910 (Catocalinae)
- Xenogenes (Catocalinae), see Xenogenes
- Xenolechia Meyrick, 1895 (Gelechiinae)
- xenolemus Le Moult & Réal, 1962 (Morpho f.), see Morpho deidamia neoptolemus
- xenomima Ronkay, 1989 (Autophila)
- Xenonola Wileman & West, 1928 (Nolinae)
- Xenonola (Nolinae), see Xenonola
- Xenopachnobia Beck, 1996 (Noctuinae), see Xestia
- Xenophanes Godman & Salvin, [1895] (Pyrginae)
- xenophanes C. & R. Felder, 1865 (Eueides tales)
- Xenophanes (Pyrginae), see Xenophanes
- Xenophhanes (Pyrginae), see Xenophanes
- xenophilus Mathew, see Papilio fuscus xenophilus
- xenophis Haensch, 1909 (Hypoleria)
- xenophon (Fabricius, 1793) (Rapala)
- xenophon Fabricius, 1793 (Hesperia), see Electrostrymon endymion
- xenophon Fabricius, 1793 (Hesperia), see Rapala xenophon
- xenops Kiriakoff, 1957 (Takwa)
- Xenopseustis Meyrick, 1897 (Acontiinae)
- Xenopseustis (Acontiinae), see Xenopseustis
- Xenortholitha Inoue, 1944 (Larentiinae)
- Xenortholitha (Larentiinae), see Xenortholitha
- xenos (Bryk, 1942) (Epirrhoe alternata)
- xenos (Mabille, 1898) (Lerodea)
- xenos (Bates, 1866) (Ithomia)
- xenos Bates, 1866 (Dircenna), see Ithomia xenos
- xenos Mabille, 1898 (Pamphila), see Lerodea xenos
- Xenosoma Felder, 1874 (Pericopinae)
- Xenosoma (Pericopinae), see Xenosoma
- Xenosphingia Jordan, 1920 (Smerinthinae)
- Xenosphingia (Smerinthinae), see Xenosphingia
- Xenostigma Warren, 1900 (Sterrhinae), see Semaeopus
- Xenotemna Powell, 1964 (Tortricinae)
- Xenotemna (Tortricinae), see Xenotemna
- Xenotrachea Sugi, 1958 (Hadeninae)
- Xenotrachea (Hadeninae), see Xenotrachea
- xephiris Viette, 1976 (Bryophilopsis)
- xeque (Catasticta chrysolopha), see Catasticta chrysolopha chrysolopha
- xeque Mengel, 1899 (Archonias), see Catasticta chrysolopha chrysolopha
- xera Rindge, 1970 (Hulstina)
- xera Dyar, 1914 (Eriopyga)
- xera Storace, 1955 (Papilio phorcas f.), see Papilio phorcas congoanus
- ?xeragis Fruhstorfer, 1915 (Gerydus boisduvali), see Miletus biggsii biggsii
- xeragis Fruhstorfer, 1915 (Gerydus), see Miletus biggsii biggsii
- xerampelina (Turner, 1904) (Ectopatria)
- ?xerampelina Hübner, [1809], see Atethmia centrago
- xerampelina Esper, [1794] (Phalaena noctua), see Atethmia centrago
- xerampelina Esper, [1794] (Phalaena), see Atethmia centrago
- xerampelina Turner, 1904 (Prometopus), see Ectopatria xerampelina
- xeranthemi Boisduval, 1840 (Cucullia)
- xerces (Boisduval, 1852) (Glaucopsyche)
- ?xerces (Glaucopsyche lygdamus), see Glaucopsyche xerces
- xerces (Nomiades), see Glaucopsyche xerces
- Xerochlora Ferguson, 1969 (Geometrinae)
- Xerochlora (Geometrinae), see Xerochlora
- Xerociris Cockerell, 1904 (Agaristinae)
- Xerociris (Agaristinae), see Xerociris
- Xerocnephasia Leraut, 1979 (Tortricinae)
- xerodactylus Zeller, 1841 (Pterophorus), see Calyciphora albodactylus
- Xerodes Guenée, [1858] (Ennominae)
- Xerodes (Ennominae), see Xerodes
- xerophanes (Meyrick, 1909) (Inape)
- xerophanes (Eulia), see Inape xerophanes
- xerophanes Meyrick, 1909 (Tortrix), see Inape xerophanes
- xerophila Ronkay, Varga & Hreblay, 1998 (Cucullia)
- xerophila Berger, 1946 (Maculinea alcon)
- xerophila Hecq, 1974 (Euphaedra)
- xerophila (Colotis ione f.), see Colotis ione
- xerophila Berger, 1946 (Maculinea), see Maculinea alcon xerophila
- xerophila Berger, 1950 (Graphium tynderaeus theorini f.), see Graphium latreillianus theorini
- xerophila Storace, 1952 (Papilio nireus var.), see Papilio nireus nireus
- ?xerophylla Roepke, 1938 (Precis?), see Junonia almana javana
- Xeropteryx Kiriakoff, 1964 (Ptilodoninae), see Spatalina
- xeroscopa Lower, 1900 (Sedenia)
- Xeroscopa Meyrick, 1884 (Scopariinae), see Scoparia
- xerxes (Staudinger, 1899) (Polyommatus cyaneus)
- xerxes (Sauber, 1904) (Catoptria)
- xerxes (Agrodiaetus cyaneus), see Polyommatus cyaneus xerxes
- xerxes Bell, 1934 (Telegonus), see Thessia jalapus
- xerxes Sauber, 1904 (Crambus), see Catoptria xerxes
- xesta Prout, 1924 (Rhodostrophia)
- Xestia Hübner, 1818 (Noctuinae)
- Xestia (Noctuinae), see Xestia
- xiaheana Murayama, ?, see Maculinea xiaheana
- Xiana Nye, 1975 (Catocalinae), see Dysgonia
- xiaoqingae Huang & Zhan, 2004 (Thoressa)
- xicaque (Reakirt, [1867]) (Paramacera)
- xicaque (Epinephele), see Paramacera xicaque
- xicaque (Paramecera), see Paramacera xicaque
- xicaque Reakirt, [1867] (Neonympha), see Paramacera xicaque
- xicca (Dyar, 1913) (Dalla)
- xicca Dyar, 1913 (Argopteron), see Dalla xicca
- xicotepecensis González, 1977 (Diaethria f.), see Diaethria astala astala
- xiei Chou, 1994 (Papilio polyctor)
- xilingensis Yoshino, 1997 (Euthalia pacifica)
- xilingensis Yoshino, 1997 (Eutharia), see Euthalia pacifica xilingensis
- ximena (Barnes & Benjamin, 1924) (Hydraecia)
- ximena (C. & R. Felder, 1862) (Adelpha)
- ximena Barnes & Benjamin, 1924 (Hydroecia), see Hydraecia ximena
- ximena C. & R. Felder, 1862 (Heterochroa), see Adelpha ximena
- ximena Ellsworth, 1918, see Eulithis propulsata
- ximene (Papilio aegeus oritas f.), see Papilio aegeus oritas
- ximene Jordan, 1909 (Papilio f.), see Papilio aegeus oritas
- xinema (Hydraecia), see Hydraecia ximena
- xingana Wang & Rehn (Glaucolinea), see Polyommatus semiargus
- ?xinglongshanus (Murayama, 1991) (Favonius taxila)
- ?xinglongshanus (Favonius cognatus), see Favonius taxila xinglongshanus
- xinguensis (Agrias phalcidon), see Agrias amydon phalcidon
- xinguensis Fassl, 1921 (Agrias phalcidon), see Agrias amydon phalcidon
- xinguensis Neustetter, 1925 (Heliconius gradatus), see Heliconius hecale latus
- xingyun Fang & Schintlmeister, 2001 (Benbowia callista)
- Xinias (Riodinidae), see Xynias
- xinjiangensis Chou & Huang, 1994 (Coenonympha)
- Xinjiangia Huang & Murayama, 1988 (Polyommatinae), see Albulina
- xinlongensis Murayama, 1991 (Favonius taxila)
- xinlongensis (Favonius taxilus), see Favonius taxila xinlongensis
- xipe (Grum-Grshimailo, 1891) (Fabriciana)
- xipe (Argynnis xipe), see Fabriciana xipe xipe
- xipe (Argynnis), see Fabriciana xipe
- xiphares (Stoll, [1781]) (Charaxes)
- xiphares (Charaxes), see Charaxes xiphares xiphares
- xiphares Stoll, [1781] (Papilio), see Charaxes xiphares
- xiphia (Fabricius, 1775) (Pararge)
- xiphia (Leptosia), see Leptosia nina
- xiphia Fabricius, 1775 (Papilio), see Pararge xiphia
- xiphia Fabricius, 1781 (Papilio), see Leptosia nina
- xiphiaeformis Boisduval, 1875, see Synanthedon exitiosa
- xiphioides Staudinger in Staudinger & Wocke, 1871, see Pararge xiphioides
- xiphiones (Butler, [1869]) (Tanaecia julii)
- xiphiones Butler, [1869] (Adolias), see Tanaecia julii xiphiones
- xiphiphora (Lower, 1911) (Neohesperilla)
- xiphiphora Lower, 1911 (Hesperilla), see Neohesperilla xiphiphora
- xiphohora (Caradrina), see Caradrina xiphophora
- Xipholeucania Sugi, 1970 (Hadeninae), see Leucania
- xiphophora Boursin, 1967 (Caradrina)
- xiphos Rothschild, 1907 (Opsiphanes tamarindi)
- xiphydria Zerny, 1928 (Pseudophaloe)
- xisana Fruhstorfer, see Caleta roxus xisana
- xishuanbannaensis Yoshino, 1997 (Neptis sankara)
- Xispia Lindsey, 1925 (Pyrginae)
- Xispia (Pyrginae), see Xispia
- xista (Swinhoe, 1893) (Savoca)
- xista Swinhoe, 1893 (Gyrtona), see Savoca xista
- xisuthrus (Fruhstorfer, 1914) (Flos apidanus)
- xisuthrus (Eurytides xynias), see Mimoides xynias trapeza
- xisuthrus Fruhstorfer, 1914 (Arhopala apidanus), see Flos apidanus xisuthrus
- xisuthrus Niepelt, 1908 (Papilio), see Mimoides xynias trapeza
- xithon Dyar, 1912 (Paracretona), see Paracretona aleptivoides
- xiutlatzin Arias, 1968 (Papilio), see Hesperocharis graphites avivolans
- xiutzaltzin Arias, 1968 (Papilio), see Hesperocharis graphites avivolans
- xizang -neope pulahoides xizangana ( wang, 1994;:mrs#: 756, 346, f. 19 ;linzhi 3000m,), see Neope pulaha pulaha
- xizangana (Huang, 1998) (Limenitis rileyi)
- xizangana Huang, 1998 (Litinga mimica), see Limenitis rileyi xizangana
- xizangensis Chen (Eugraphe)
- xizangensis Huang, 2000 (Clossiana gong)
- xizangensis Wang & Wang, 1994 (Neptis mahendra)
- xizangensis (Chou, 1994) (Hipparchia parisatis)
- xizangensis Murayama (Aporia bieti)
- xizangensis Chou & Lu, 1982 (Macdunnoughia), see Macdunnoughia crassisigna
- xizangensis Chou, 1994 (Satyrus parisatis), see Hipparchia parisatis xizangensis
- x-magnum Bryk, 1949 (Rosama)
- x-notata Haworth, 1809 (Noctua), see Luperina testacea
- Xois Hewitson, 1865 (Satyrinae), see Ypthima
- Xonophanes (Pyrginae), see Xenophanes
- xorema (Schaus, 1902) (Nicolaea)
- xorema (Tmolus), see Nicolaea xorema
- xorema Schaus, 1902 (Thecla), see Nicolaea xorema
- xoremoides Lathy, 1936 (Thecla xorema), see Siderus giapor
- x-scriptum Sowerby, 1806 (Phalaena), see Hadena confusa
- Xsylina (Xyleninae), see Xylena
- Xubida Schaus, 1922 (Crambinae)
- Xubida (Crambinae), see Xubida
- Xubida Schaus, 1922 (Crambinae), see Acigona
- xumini Huang, 2001 (Satyrium)
- xuthochyta (Turner, 1945) (Bactra)
- xuthochyta Turner, 1945 (Capua), see Bactra xuthochyta
- xuthophanes Turner, 1902 (Eccleta)
- xuthopis Hampson, 1914 (Scoliacma)
- xuthorpis, see Scoliacma xuthopis
- xuthosoma (Turner, 1909) (Habrophyes)
- xuthosoma Turner, 1909 (Tarache), see Habrophyes xuthosoma
- xuthota Hampson, 1910 (Tarache), see Acontia thapsina
- xuthulus Bremer, 1861 ( xuthus f.), see Papilio xuthus
- xuthus Linnaeus, 1767 (Papilio)
- xuthus (Sinoprinceps), see Papilio xuthus
- xuwantashanus Yoshino, 1995 (Neocheritra fabronia)
- xychus (Mabille, 1891) (Caenides)
- xychus Mabille, 1891 (Proteides), see Caenides xychus
- Xylaena (Xyleninae), see Xylena
- Xylecata Swinhoe, 1904 (Arctiinae), see Nyctemera
- Xylena Ochsenheimer, 1816 (Xyleninae)
- Xylena (Xyleninae), see Xylena
- Xyleninae (Noctuidae)
- Xyleninae (Noctuidae), see Xyleninae
- ?-xylenini nyctycia (Xyleninae), see Nyctycia
- Xylesthia Clemens, 1859 (Tineidae)
- Xylesthia (Tineidae), see Xylesthia
- Xylestia (Tineidae), see Xylesthia
- Xyleutes (Cossidae)
- xylina Rothschild & Jordan, 1910 (Nephele)
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