Gyrinus (Oreogyrinus) opalinus Régimbart, 1883

Gyrinus opalinus Régimbart, 1883b: 184 (orig. descr.); 1884. 475 (record); 1892: 744 (record); 1903a: 8 (record); 1907: 181 (record); Severin 1889: 166 (catalog); Ahlwarth 1910: 23 (catalog); Blackwelder 1944: 81 (checklist); Ochs 1948: 565 (checklist); 1969: 379 (ethology, ecology)

Gyrinus (Oreogyrinus) opalinus Régimbart: Ochs 1935a: 125 (n. comb.); 1954: 120, 131 (descr.); 1965b: 38, 45 (record); Mouchamps 1957: 247 (descr.)

DISTRIBUTION: Bolivia, Brazil (AM).