Subfamily STENINAE W.S. MacLeay, 1825
0825. Stenus Latreille, 1797: 77 (Figs. 140–141)
Type species: Staphylinus juno Paykull, 1789
Subgenera:
Hemistenus Motschulsky, 1860b: 557 [*]
Type species: Stenus gilvipes Motschulsky, 1858
Mesostenus Rey, 1884: 326 [synonymized by Bernhauer & Schubert 1911: 178]
Type species: Stenus impressus Germar, 1823
Parastenus Heyden, 1905: 262 [synonymized by Bernhauer & Schubert 1911: 178]
Type species: Stenus impressus Germar, 1823
Hypostenus Rey, 1884: 390 [*]
Type species: Stenus kiesenwetteri Rosenhauer, 1856
Areus Casey, 1884c: 150 [synonymized by Horn, 1885: 113]
Type species: Stenus flavicornis Erichson, 1840
Astenus Lynch-Arribálzaga, 1884: 341 [synonymized by Bernhauer & Schubert 1911: 171]
Type species: Stenus speculifrons Fauvel, 1877
Stenosidotus Lynch-Arribálzaga, 1884: 338 [synonymized by Bernhauer & Schubert 1911: 171]
Type species: Stenus aenescens Lynch-Arribálzaga, 1884
Systenus Eichelbaum, 1913: 124 [synonymized by Scheerpeltz 1933: 1172]
Type species: Stenus amaniensis Eichelbaum, 1913
Metatesnus Ádám in Lázló & Gábor, 2001: 126
Type species: Stenus binotatus Ljungh, 1804
Adamostenus Özdikmen & Darilmaz, 2008: 303
Type species: Stenus binotatus Ljungh, 1804
Mestastenus Ádám, 1987a: 135 [synonymized by Ádám in Lázló & Gábor 2001: 126]
Type species: Stenus binotatus Ljungh, 1804
Nestus Rey, 1884: 246
Type species: Stenus boops Ljungh, 1810
Stenus Latreille, 1797: 77 [*]
Type species: Staphylinus juno Paykull, 1789
Zolmaenus Stephens, 1829b: 291 [synonymized by Blackwelder 1952: 409]
Type species: Staphylinus juno Paykull, 1789
Tesnus Rey, 1884: 315 [*]
Type species: Stenus opticus Gravenhorst, 1806
Mutinus Casey, 1884c: 146 [synonymized by Bernhauer & Schubert 1 911: 169]
Type species: Stenus dispar Casey, 1884
620 species are included in this genus from Latin America.
Characters/Description: Lynch-Arribálzaga 1884: 332 (characters); Blackwelder 1943: 208 (characters); Coiffait & Sáiz 1968: 398 (characters).
Key: Lynch-Arribálzaga 1884: 334 (species of Buenos Aires province, Argentina); L. Benick 1928: 43, 45 (some species); L. Benick 1938b: 146 (subgenera), 154 (some Brazilian species), 162 (some species of the Central and South America); L. Benick 1938a: 256 (subgenera), 259 (species of the Central America); Blackwelder 1943: 209 (species of the West Indies); L. Benick 1949: 566 (New World species); Coiffait & Sáiz 1968: 399 (Chilean species); Puthz 1972: 120 (species of Chile); Puthz 1977a: 161 (species of Stenus aculeatus group); Puthz 1984: 88 (species of Stenus podagricus group), 177 (species of Stenus aeneas group); Puthz 2000: 124 (species apterous of subgenus Hemistenus of Mexico); Puthz 2006a: 663 (Neotropical species of the subgenus Tesnus); Puthz 2015: 753 (Neotropical groups and species).
Distribution.
West Indies: Bahamas, Cuba, Jamaica, Haiti, Dominican Republic, Guadeloupe, Grenada, Trinidad-Tobago.
Central America: Mexico, Guatemala, Belize, Honduras, El Salvador, Nicaragua, Costa Rica, Panama.
South America: Colombia, Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru, Bolivia, Brazil, Paraguay, Uruguay, Chile, Argentina.
Other regions: Nearctic, Palaearctic, Ethiopian, Madagascan, Oriental, Australian, Oceanic.