Gyrinus gibbus Aubé, 1838: 709 (orig. descr.); Gemminger & Harold 1868: 469 (catalog); Régimbart 1883 b: 186, pl 6, f 92 (descr.); 1884: 475 (record); 1892: 744 (record); 1899: 5 (record); 1903 a: 8 (record); 1903 b: 74 (record); 1907: 169 (record); Severin 1889: 163 (catalog); Ahlwarth 1910: 19 (catalog); Bruch 1915: 479 (catalog); Zimmermann 1917: 164 (collection list); 1920: 232 (record); 1924: 3 (record); Ochs 1924 a: 230 (descr.); 1924 b: 8 (record); 1935 b: 201 (record); 1948: 565 (checklist); 1956: 2 (descr.); 1957: 213 (record); 1958 b: 479 (record); 1959: 67 (record); 1960 b: 308 (record); 1964 a: 86 (record); 1966: 442 (record); 1967: 142 (record); 1969: 379 (ethology, ecology); 1980: 43 (record); Jacob 1935: 102, 108 (descr.); Blackwelder 1944: 81 (checklist); Costa et al. 1988: 84, f. 2-12 (larva descr., illustr.); Benetti & Régil 2004: 6 (ecology); Archangelsky & Michat 2007: 21 (larva note)
Gyrinus apicalis Sharp, 1877: 117 (orig. descr.) [synonymy by Régimbart, 1883: 186]
Gyrinus gibbus var. apicalis Sharp: Régimbart 1884: 475 (n. comb.); 1889 b: 387 (record); 1892: 744 (descr.); Severin 1889: 164 (catalog)[synonymy by Ochs, 1948: 565]
Gyrinus (Neogyrinus) gibbus Aubé: Ochs 1935 a: 125, 128 (n. comb.); 1949: 277 (descr.); 1953 b: 184, 187, 189 (descr.); 1954: 132 (descr.); 1955: 21 (record); 1958 a: 179 (descr.); 1958 c: 2 (record); 1963 a: 86, 87 (record); 1963 b: 378 (record); 1963 c: 457 (record); 1965 b: 38, 44 (record); Benetti et al. 2003 b: 38, 42 (record, distr.); Benetti & Garrido 2004: 159 (record, distr.)
DISTRIBUTION: Argentina, Bolivia, Brazil (AM, BA, ES, MG, MS, MT, PR, RJ, RR, RS, SC, SP), Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Paraguay, Peru, Uruguay, Venezuela.