Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

IRMNG

Name Relationship
Lucanidae Latreille 1806 Preferred
Hexaphyllus Mulsant, 1839 Synonym
Eurytrachelus Thomson 1862
Neolamprima GESTRO 1875
Cyclommatinus Didier 1927
Cephax de Laporte in Brullé, 1840
Brontodorcus Didier 1931
Casignetus Macleay 1819
Chyasognathus Guérin-Ménéville 1838
Ligniperda Fabricius 1790
Megaloprepes Thomson 1862
Hexaphyllum Gray 1832
Sinodendrum Agassiz 1846
Psadidognathus Thomson 1862
Synodendron Fabricius 1792
Cladognathinus Didier & Séguy 1952
Cyclommatellus Nagel 1936
Hoplitocranum Jakovlev 1896
Calodaemon Boileau 1897
Gnaphalonyx Motschoulsky, 1862
Hemicardanus Heller 1927
Chalcimon Dalman 1824
Psalipocerus Agassiz 1846
Pelecognathus Houlbert 1915
Systenocerus Weise in Heyden, Reitter & Weise, 1891
Pogonodorcus Séguy 1954
Odontotyranus Séguy 1955
Eubussea Zacher 1913
Cassignetus Thomson 1862
Metopodontus Hope 1845
Homoderinus Kriesche 1926
Prosopocoelus Parry 1875
Chiasognathinus Didier in Didier & Séguy, 1953
Psalidostomus Burmeister 1847
Metadorcinus Kriesche 1922
Colocephalaria Didier 1929
Eurytrachellelus Didier 1931
Telodorcus Didier 1931
Sinodentron Dahl 1823
Lasiodorcus Didier 1931
Psallicerus Gistl 1848
Eudora Laporte, 1840
Lucanus Linnaeus, 1767
Ptilophyllum Guérin-Ménéville 1845
Epidorcus Séguy 1954
Paraegus Gahan 1889
Dorcas Hope 1842
Alcimus FAIRMAIRE 1849
Macrognathus Hope 1845
Epipedus Solier in Gay, 1851
Nagelius Benesh 1955
Corypticus STURM 1843
Pholiodotus Hope 1843
Sclerognathus Hope 1845
Cladognathus Burmeister 1847
Polytrophus Gistl, 1847
Platycerys Geoffroy 1762
Platycerys Müller, 1764
Cardanopsis Boileau, 1910
Goniodorcus Didier 1931
Casignathus Laporte 1840
Odontaegus Kriesche 1935
Malietoa Kriesche 1921
Nigidia Berthold in Latreille, 1827
Eurydorcus Didier 1931
Psalicerus Dejean 1833
Streptocerus Dejean 1833
Psilodon Perty 1830
Elsion Kriesche 1921
Coryptius Dejean 1836
Cyclorasis Thomson 1862
Calcodes Westwood 1834
Xenostomus Boileau 1898
Oönotus Parry 1864
Godartia CHENU 1851
Anoplocnemus Hope 1845
Anodontolabis Parry 1863
Odontolabus Gemminger & Harold 1869
Tetraophthalmus Lesson, 1831
Sphoenognathus BUQUET 1839
Neolucanus Didier & Seguy, 1952
Cyclophthorus Arrow, 1950
Dorcus Parry, 1862
Metopotropus Oberthür & Houlbert, 1913
Prosopocoelus van Roon, 1910
Scortizus Arrow, 1943
Lucanus Hope & Westwood, 1845
Orthognathus DEJEAN 1837
Nigidius Kriesche, 1926
Platyprosopus Hope & Westwood, 1845
Diasomus Didier & Seguy, 1953
Syndesus Gray in Griffith, 1832
Aegus Lacordaire, 1856
Dorcus Broun, 1881
Heterochites Didier, 1933
Anoplocnemus Burmeister, 1847
Odontolabis HOPE & WESTWOOD 1845
Cyclophthalmus Hope & Westwood, 1845
Cyclotropus Oberthür & Houlbert, 1913
Dorcus Arrow, 1935
Sclerognathus van Roon, 1910
Platycerus Latreille, 1807
Tarandus Megerle in Dejean, 1837
Dorcus Burmeister, 1847
Systenus Sharp and Muir, 1912
Metapodontus Hope & Westwood, 1845
Dorcus Dejean, 1837
Dorcus Solier, 1851

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