Barydesmus stenopterus (Brölemann, 1905)
Platyrrhacus stenopterus Brölemann, 1905: 343 (original description); Brölemann 1911: 14 (type information; diagnostic comments).
Nyssodesmus stenopterus: Chamberlin 1922: 40 (combination).
Barydesmus stenopterus: Hoffman 1999: 377 (combination; taxonomic comments).
Types: ♀ holotype from Costa Rica: Rancho-Redondo, 2000 m, P. Biolley leg. Material originally deposited at the MNHN, we could not confirm its current state; it is not listed in their on-line database.
Distribution: known only from the type locality.