Barydesmus zygethus (Chamberlin, 1941) new combination
Platyrrhacus zygethus Chamberlin, 1941:494, fig. 155–158.
Types: ♀ holotype from Peru: Moyobamba, Balsapuerto Trail, XII-1925. Deposited at the AMNH, cat. no. 9483 (Chamberlin 1941), we could not confirm its current state.
Distribution: known only from the type locality.