Barydesmus obscurus (Kraus, 1955) new combination
Platyrhacus (Tirodesmus) obscurus Kraus, 1955: 186, Pl. 18 figs 29–31, Abb. 1 (original description).
Types: ♂ holotype from Peru, without certain locality, Río Huallaga ? Originally deposited at the MHNL, currently it is not present in that collection (D. F. Silva Davila, pers. comm.) and should be considered missing. Distribution: Peru .