Lepidoptera
A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - Y - Z
- x-z-nigrum Bryk, 1943 Drepana Drepanidae TYPUS
- xami Reakirt, 1866 Thecla Lycaenidae
- xanites (Butler, 1870) Koruthaialos Hesperiidae
- xanthenes (Germar, 1842) Gortyna Noctuidae
- xanthias (Mabille, 1891) Paronymus Hesperiidae
- xanthiata Walker, 1865 Heliothis Noctuidae
- xanthica (Hewitson, 1852) Perisama Nymphalidae
- xanthicles (Godman & Salvin, 1881) Catoblepia Nymphalidae
- xanthicles belisar Stichel, 1904 Catoblepia Nymphalidae
- xanthicles cyparissa Fruhstorfer, 1907 Catoblepia Nymphalidae
- xanthindyma (Boisduval, 1833) Anomis Noctuidae
- xanthioides Guenée, 1852 Perigea Noctuidae
- xanthippe (Latreille, 1823) Sarbia Hesperiidae
- xantho Le Cerf, 1937 Chamaesphecia Sesiidae TYPUS
- xantho (Felder, 1860) Epithomia Nymphalidae
- xantho methonella (Weymer, 1875) Epithomia Nymphalidae
- xanthocera (Walker, 1856) Nyridela Arctiidae
- xanthochares (Meyrick, 1924) Agalmoscelis Heliodinidae
- xanthochlora (Kollar, 1850) Eurema Pieridae
- xanthochlora Walker, 1865 Cyphanta Notodontidae
- xanthochlora constantia (Felder, 1865) Eurema Pieridae
- xanthochlora pomponia Hopffer, 1874 Eurema Pieridae
- xanthochloris Boisduval, 1840 Polyphaenis Noctuidae
- xanthocles Bates, 1862 Heliconius Nymphalidae
- xanthocles vala Staudinger, 1888 Heliconius Nymphalidae
- xanthodactylus sensu auct. Calyciphora Pterophoridae
- xanthodactylus (Treitschke, 1833) Calyciphora Pterophoridae
- xanthogramma Wallengren, 1860 Epidromia Noctuidae TYPUS
- xanthographa (Denis & Schiffermüller, 1775) Xestia Noctuidae
- xanthographa elutior (Alphéraky, 1887) Xestia Noctuidae
- xanthographella Rebel ? Blastobasis Blastobasidae
- xantholopha (Hampson, 1896) Macrobarasa Noctuidae
- xanthomela Walker, 1862 Euproctis Lymantriidae
- xanthomelaena Holland, 1893 Euproctis Lymantriidae
- xanthomelanaria Poujjade, 1895 Xandrames Geometridae
- xanthomelas (Denis & Schiffermüller, 1775) Nymphalis Nymphalidae
- xanthomelas Walker, 1863 Mapeta Pyralidae
- xanthomelas chosenessa Bryk, 1946 Vanessa Nymphalidae TYPUS
- xanthomelas japonica (Stichel, 1902) Nymphalis Nymphalidae
- xanthomelas modesta Bryk ? Nymphalis Nymphalidae
- xanthomelas mongolica Bryk ? Nymphalis Nymphalidae
- xanthomista (Hübner, 1819) Polymixis Noctuidae
- xanthomista nigrocincta (Treitschke, 1825) Polymixis Noctuidae
- xanthone Bates, 1862 Napeogenes Nymphalidae
- xanthopera (Hampson, 1908) Callopistria Noctuidae
- xanthophane Hopffer, 1874 Dircenna Nymphalidae
- xanthophane melini Bryk, 1953 Dircenna Ithomiinae TYPUS
- xanthopimpla Bryk, 1947 Caudicornia Sesiidae TYPUS
- xanthopoecila (Holland, 1893) Lycaenesthes Lycaenidae
- xanthopus Walker, 1855 Rhescynthis Saturniidae
- xanthorhoda (Boursin, 1937) Eremodrina Noctuidae
- xanthorrhoea (Kollar, 1842) Euproctis Lymantriidae
- xanthosoma (Rebel, 1900) Pseudatemelia Amphisbatidae
- xanthosoma (Turner, 1898) Amata Arctiidae
- xanthosoma Wallengren, 1860 Phiala Eupterotidae TYPUS
- xanthosoma incisa Aurivillius, 1925 Amata Arctiidae TYPUS
- xanthospila (Plötz, 1880) Mylantria Lymantriidae
- xanthospilos (Hübner, 1817) Candalides Lycaenidae
- xanthosticta Hampson, 1901 Hemihyalea Arctiidae
- xanthostictum Hampson, 1898 Cosmosoma Arctiidae
- xanthostola (Bates, 1862) Napeogenes Nymphalidae
- xanthostola ampliusmaculata Bryk, 1953 Napeogenes Ithomiinae TYPUS
- xanthostola heterogyna Bryk, 1953 Napeogenes Ithomiinae TYPUS
- xanthostola (Holland, 1890) Liptena Lycaenidae
- xanthostola (Mabille, 1885) Caphornia Noctuidae
- xanthurum Schaus, 1910 Eucereon Arctiidae
- xanthus Edwards, 1878 Pyrgus Hesperiidae
- xanthus (Linnaeus, 1758) Catoblepia Nymphalidae
- xanthus dohrni (Stichel, 1901) Catoblepia Nymphalidae
- xantodice (Lucas, 1852) Tatochila Pieridae
- xena (Staudinger, 1895) Niaboma Noctuidae
- xenana Butler, 1870 Taygetis Nymphalidae
- xenana godmani Staudinger, 1911 Taygetis Nymphalidae
- xenana sosis Hopffer, 1874 Taygetis Nymphalidae
- xeneas Hewitson, 1865 Mycalesis Nymphalidae
- xenia Hewitson, 1847 Lymnas Lycaenidae
- xenia erythra Ménétriés, 1855 Lymnas Lycaenidae
- xenoclea Hewitson, 1852 Heliconius Nymphalidae
- xenocles Doubleday, 1842 Papilio Papilionidae
- xenocles (Westwood, 1850) Anaea Nymphalidae
- xenocrates (Westwood, 1850) Anaea Nymphalidae
- xenophon (Fabricius, 1775) Rapala Lycaenidae
- xenos Bates, 1866 Heterosais Nymphalidae
- xerampelina (Esper, 1794) Atethmia Noctuidae
- xeranthemi Boisduval, 1840 Cucullia Noctuidae
- xerodactyla (Zeller, 1841) Calyciphora Pterophoridae
- xerxes (Boisduval, 1852) Nomiades Lycaenidae
- xerxes (Sauber, 1904) Catoptria Pyralidae
- xesta Prout, 1935 Rhodostrophia Geometridae
- xiphares (Cramer, 1781) Charaxes Nymphalidae
- xiphares nandina Rotschild, 1901 Charaxes Nymphalidae
- xiphia (Fabricius, 1781) Nina Pieridae
- xiphia (Fabricius, 1775) Pararge Nymphalidae
- xiphioides Staudinger, 1871 Pararge Nymphalidae
- xuthus Linnaeus, 1758 Papilio Papilionidae
- xuthus hondoensis Fruhstorfer, 1908 Papilio Papilionidae
- xuthus neoxanthus Fruhstorfer, 1908 Papilio Papilionidae
- xuthus xuthulus Bremer, 1861 Papilio Papilionidae
- xylia Guenée, 1852 Letis Noctuidae
- xylinella (Staudinger, 1870) Ancylosis Pyralidae
- xylinoides (Guenée, 1852) Hyppa Noctuidae
- xylinoides Schaus, 1894 Acanthodica Noctuidae
- xylinoides (Walker, 1866) Pentobesa Notodontidae
- xylobrunnea Amsel, 1951 Ephestia Pyralidae TYPUS
- xylosteana (Linnaeus, 1758) Archips Tortricidae
- xylostella auct. Ypsolopha Ypsolophidae
- xylostella (Linnaeus, 1758) Plutella Plutellidae
- xylotribus (Herrich-Schäffer, 1853) Endoxyla Cossidae
- xynias Hewitson, 1875 Papilio Papilionidae
- xypete Hewitson, 1874 Euphaedra Nymphalidae
- xypete caerulescens Smith, 1890 Euphaedra Nymphalidae
- xystidophora (Meyrick, 1893) Edosa Tineidae