Notonecta sobria Stål, 1855a: 89. ST(S): S Africa, "Terra Natalensi" [= Natal]; NHRS.
?Enithares sobria f. danae Hutchinson, 1929: 374 (syn. Poisson, 1949a: 49, suspected, as rare female colour form). HT: female, S Africa, Cape Prov., Blaaukrantz Valley; South African Museum, Capetown, S Africa.
Enithares sobria f. kamandei Poisson, 1949a: 49 (syn. Linnavuori, 1981: 6). STS: 6 spec. [1 labelled HT!], Zaire, Parc National Albert [= Virunga]; MRAC.