Taxonomic review of the Amazonian millipede genus Parastenonia Hoffman, 1977 and description of a new species from iron-ore caves (Polydesmida: Chelodesmidae)

The Amazonian genus Parastenonia Hoffman, 1977 is here revised. The species P. carajas sp. nov. is described from Brazilian iron-ore caves and P. aurae (Schubart, 1947) is considered junior synonym of P. parae (Cook, 1895). In addition, the known geographic distribution of the genus is presented with the inclusion of new occurrence data.