Taxa included

International Commission on Zoological Nomenclature (1987). Opinion 1423. Olpium Koch, 1873 (Arachnida): Obisium pallipes Lucas, [1846] designated as type species; interpretation of the nominal species Olpium kochi Simon, 1881.. Bulletin of Zoological Nomenclature 44: 53–54.

Taxon
Olpium pallipes (Lucas, 1849) (Pseudoscorpiones: Olpiidae) 53, Olpium pallipes (Lucas)
Olpium kochi Simon, 1881 (Pseudoscorpiones: Olpiidae) 53–54, Olpium kochi