Revision of the American Pill Millipedes I: Onomeris and Trichomeris (Diplopoda, Glomerida, Glomeridae)

The unique characters which distinguish Trichomeris Loomis, 1943 from Onomeris Cook, 1896 are based on erroneous drawings and not actual differences. Trichomeris is a junior synonym of Onomeris. All three species of Onomeris, O. sinuata (Loomis), 1943, O. underwoodi Cook, 1896 and O. australora Hoffman, 1950 are redescribed, based on their holotypes, as well as additional specimens. Scanning electron micrographs are presented for the first time...