The genus Osorius Guérin-Méneville, 1829
Guérin-Méneville, 1829: pl. 9, fig. 11 (species included: brasiliensis); Bernhauer and Schubert, 1911: 143 (world catalog; 83 species); Cameron, 1921: 351, 401 (key to Singapore species; catalog); Cameron, 1925: 22, 105 (catalog of Indian species); Cameron, 1930: 290 (key to species of British India); Scheerpeltz, 1933: 113 (world catalog supplement); Darlington, 1937: 285 (key to West Indian species); Bernhauer, 1942: 215 (key to Philippine species); Abdullah and Qadri, 1970: 116, 117 (key to species of East and West Pakistan); Shibata, 1973: 36 (checklist of species of Taiwan); Shibata, 1976: 168 (checklist of species of Japan); Naomi, 1986: 34 (species of Japan); Herman, 2001: 1196 (genus of Osoriini; catalog); Smetana, 2004: 508 (genus of Osoriini; catalog); Irmler, 2010: 370 ( Osorius; redescription; key to Neotropical region species).
Type species: Osorius brasiliensis Guérin-Méneville, 1829 fixed by monotypy.
Syn: Molosoma Say, 1831: 48 (species included: latipes); Erichson, 1840: 753 (synonym of Osorius). Type species: Oxytelus latipes Gravenhorst, 1806, fixed by monotypy.