Tribe Scydmaenini Leach, 1815
0824. Scydmaenus Latreille, 1802: 116
Type species: Pselaphus hellwigii Paykull, 1800 nec Herbst, 1792
Subgenera:
Afroscydmaenus H. Franz, 1963: 5
Type species: Scydmaenus mariusi H. Franz, 1963
Agathelor L.W. Schaufuss, 1884: 420
Type species: Agathelor deplanatum L.W. Schaufuss, 1884
Androscydmaenus H. Franz, 1980d: 691
Type species: Scydmaenus pilosissimus H. Franz, 1961
Androscydmus Newton in Newton & H. Franz, 1998: 152
Type species: Scydmaenus densepunctatus H. Franz, 1992
Androscydmaenus H. Franz, 1992: 870 [synonymized by Newton in Newton & H. Franz 1998: 152]
Type species: Scydmaenus densepunctatus H. Franz, 1992
Archiscydmaenus H. Franz in Newton & H. Franz, 1998: 152 [*]
Type species: Scydmaenus huijbregtsi H. Franz, 1985
Palaeoscydmaenus H. Franz, 1985b: 109 [synonymized by H. Franz in Newton & H. Franz 1998: 152]
Type species: Scydmaenus huijbregtsi H. Franz, 1985
Armatoscydmaenus H. Franz, 1971: 100 [*]
Type species: Scydmaenus regularis L.W. Schaufuss, 1889
Breviclavatoscydmaenus H. Franz, 1994a: 63 [*]
Type species: Scydmaenus kavacanus H. Franz, 1994
Choleropsis H. Franz, 1975: 291
Type species: Heterognathus gracilis King, 1864
Cholerus Thomson, 1859: 62 [*]
Type species: Pselaphus hellwigii Herbst, 1792
Mastigus Illiger, 1802: 296 [synonymized by Newton in Newton & H. Franz 1998: 152]
Type species: Pselaphus hellwigii Herbst, 1792
Conoscydmaenus H. Franz, 1980c: 68 [*]
Type species: Scydmaenus unicornis H. Franz, 1980
Corbulifer H. Franz, 1975: 286
Type species: Scydmaenus tamborinensis H. Franz, 1975
Eustemmoides H. Franz, 1958a: 3
Type species: Scydmaenus alluvialis H. Franz, 1958
Eustemmus Reitter, 1882c: 582
Type species: Scydmaenus antidotus Schaum, 1841
Geoscydmaenus H. Franz, 1961: 177
Type species: Scydmaenus pullus H. Franz, 1961
Heteroeustemmus H. Franz, 1971: 97
Type species: Eumicrus atrorufus Fauvel, 1889
Heteromicrus H. Franz, 1975: 300 [*]
Type species: Scydmaenus mirus H. Franz, 1975
Kingius H. Franz in Newton & H. Franz, 1998: 153
Type species: Heterognathus carinatus King, 1864
Heterognathus King, 1864: 96 [synonymized by H. Franz in Newton & H. Franz 1998: 153]
Type species: Heterognathus carinatus King, 1864
Mascarensia H. Franz, 1972: 11
Type species: Scydmaenus spinipes H. Franz, 1972
Mimoscydmaenus H. Franz, 1986b: 967
Type species: Scydmaenus chiangmaii H. Franz, 1986
Nepaloscydmaenus H. Franz, 1973: 118
Type species: Scydmaenus ghokarnae H. Franz, 1973
Paraeustemmus H. Franz, 1955: 1051
Type species: Scydmaenus vividus Reitter, 1887
Parageoscydmaenus H. Franz, 1980c: 69 [*]
Type species: Scydmaenus baloghi H. Franz, 1980
Parallomicrus H. Franz in Newton & H. Franz, 1998: 153
Type species: Scydmaenus rufus Müller & Kunze, 1822
Allomicrus H. Franz, 1975: 284 [synonymized by H. Franz in Newton & H. Franz 1998: 153]
Type species: Scydmaenus rufus Müller & Kunze, 1822
Parascydmaenus Jeannel & Paulian, 1945: 125
Type species: Scydmaenus spathifer Reitter, 1907
Pseudeumicrus Jeannel & Paulian, 1945: 126
Type species: Scydmaenus tachyoryctidis Jeannel & Paulian, 1945
Scottiscydmaenus H. Franz, 1975: 277
Type species: Scydmaenus lodoiceae Scott, 1922
Scydmaenus Latreille, 1802: 116 [*]
Type species: Pselaphus hellwigii Paykull, 1800 nec Herbst, 1792
Acholerops Casey, 1897: 535 [synonymized by H. Franz 1985c: 182]
Type species: Acholerops retrusa Casey, 1897
Alaudula L.W. Schaufuss, 1889: 31 [synonymized by Vít 2008: 265]
Type species: Alaudula rectispina L.W. Schaufuss, 1889
Clavigeroscydmus H. Franz, 1986: 374 [synonymized by Jałoszyński 2016c: 462]
Type species: Clavigeroscydmus corticariaeformis H. Franz, 1986
Eumicrus Laporte, 1832: 395 [synonymized by Reitter 1885d: 58]
Type species: Scydmaenus tarsatus Müller & Kunze, 1822
Ensimus Thomson, 1859: 62 [Newton & H. Franz 1998: 154]
Type species: Scydmaenus tarsatus Müller & Kunze, 1822
Microstemma Motschulsky, 1858c: 57 [Newton & H. Franz 1998: 154]
Type species: Scydmaenus tarsatus Müller & Kunze, 1822
Pseudomicrus Motschulsky, 1863: 425 [synonymized by Newton & H. Franz 1998: 154]
Type species: Scydmaenus alatus Nietner, 1856
Seychellinus H. Franz, 1986c: 359
Type species: Scydmaenus insularum Scott, 1922
Termitoscydmaenus H. Franz, 1980a: 55
Type species: Scydmaenus kistneri H. Franz, 1980
Trapezoscydmaenus H. Franz, 1986c: 366
Type species: Scydmaenus cavipennis Peyerimhoff, 1939
118 species are included in this genus from Latin America.
Characters/Description: Casey 1897: 470 (characters); H. Franz 1980c: 69 (characters subgenus Scydmaenus), 70 (characters in key of subgenera Parageoscydmaenus and Scydmaenus); Jałoszyński 2016c: 455 (characters); Jałoszyński 2016f: 135 (characters), 139 (characters in key).
Key: Reitter & Croissandeau 1890: 219 (some Brazilian species); H. Franz 1980c: 70 (species of the Latin America); H. Franz 1986a: 10 (Venezuelan species); H. Franz 1993b: 28 (South American species); H. Franz 1993c: 226 (Southern Brazilian species); H. Franz 1994a: 65 (species of subgenus Breviclavatoscydmaenus of the alluvial plains of Orinoco and Amazon river); H. Franz 1994b: 334 (Mexican species); H. Franz 1995: 52 (species of the Central America).
Distribution.
West Indies: Cuba, Domincan Republic, US Virgin Isl., Montserrat, Guadeloupe, Martinique.
Central America: Mexico, Guatemala, Nicaragua, Costa Rica, Panama.
South America: Colombia, Venezuela, Suriname, Ecuador, Galapagos Isl., Peru, Bolivia, Brazil, Paraguay, Chile, Argentina.
Other regions: Nearctic, Palaearctic, Ethiopian, Madagascan, Oriental, Australian, Oceanic.