Cimex najas De Geer, 1773: 311. LT (Andersen, 1990: 63): Sweden; NHRS.
Cimex najas var. apterus Retzius, 1783: 89 (junior homonym of Cimex apterus Linnaeus, 1758). Based on De Geer, 1773.
Gerris aptera Schummel, 1832: 34 (syn. Amyot, 1846a: 424) (junior homonym of Gerris aptera Fabricius, 1794). STS: 3 male, 1 female, Poland, Silesia, Schwotsch (now part of Wroclaw).
Gerris canalium Dufour, 1833a: 197 (syn. Dufour, 1833a: 197, with najas var. apterus; Amyot & Serville, 1843: 418, with najas). STS: France, Saint-Sever; MNHN?
Gerris pausarius Curtis, 1835a: text to pl. 559 (syn. Flor, 1860: 735). STS: male, female, Great Britain, England, Lyndhurst.
Hydrometra fasciata Signoret, 1862a: 376 (syn. Puton, 1874a: 229). ST(S): France, Corsica; NHMW?