- Spathosternum pygmaeum Karsch, 1893: 110.
Holotype; male; DORSA BA000100S01; deposited at: Museum für Naturkunde (MfN); Togo: Centre: Bismarcksburg
- Spathosternum pygmaeum Karsch, 1893 in Bolívar, 1905: 230.
- ... Show all ... (31)
- Spathosternum pygmaeum Karsch, 1893 in Bruner, 1920: 105.
- Spathosternum pygmaeum Karsch, 1893 in Sjöstedt, 1929: 22.
- Spathosternum brevicorne Uvarov, 1953: 64.
Holotype; male; 41af76c3-7838-4908-8f79-9fe492e85b1b; deposited at: Natural History Museum, London (NHMUK); Uganda: Kepeka
- Spathosternum brevicorne Uvarov, 1953 in Kevan, 1955: 477.
- Spathosternum brevicorne Uvarov, 1953 in Dirsh, 1955: 69.
- Spathosternum pygmaeum Karsch, 1893 in Dirsh, 1956: 258.
- Spathosternum pygmaeum Karsch, 1893 in Johnston, 1956: 234.
- Spathosternum brevicorne Uvarov, 1953 in Dirsh, 1956: 176, 258.
- Spathosternum brevicorne Uvarov, 1953 in Johnston, 1956: 233.
- Spathosternum pygmaeum Karsch, 1893 in Chopard, 1958: 127.
- Spathosternum pygmaeum Karsch, 1893 in Kevan & Knipper, 1961: 384.
- Spathosternum pygmaeum rammei Roy, 1961: 109.
Holotype; female; 563e0365-2000-491e-817c-ff933d651a14; deposited at: Museum National d'Histoire Naturelle, Paris (MNHN); Benin: Dahomey, Cercle de Djougou, Kouande
- Spathosternum brevicorne Uvarov, 1953 in Kevan & Knipper, 1961: 384.
- Spathosternum pygmaeum Karsch, 1893 in Dirsh, 1963: 207.
- Spathosternum pygmaeum Karsch, 1893 in Dirsh, 1964: 53.
- Spathosternum pygmaeum rammei Roy, 1961 in Roy, 1964: 1189.
- Spathosternum pygmaeum Karsch, 1893 in Dirsh, 1965: 202.
- Spathosternum brevicorne Uvarov, 1953 in Dirsh, 1965: 202.
- Spathosternum pygmaeum rammei Roy, 1961 in Roy, 1965
- Spathosternum pygmaeum rammei Roy, 1961 in Descamps, 1965: 939.
- Spathosternum pygmaeum Karsch, 1893 in Johnston, 1968: 149.
- Spathosternum brevicorne Uvarov, 1953 in Johnston, 1968: 148.
- Spathosternum pygmaeum rammei Roy, 1961 in Johnston, 1968: 149.
- Spathosternum pygmaeum rammei Roy, 1961 (subjective synonym of Spathosternum pygmaeum Karsch, 1893) in Dirsh, 1970: 93.
- Spathosternum pygmaeum Karsch, 1893 in Centre for Overseas Pest Research, 1982: 144.
- Spathosternum pygmaeum Karsch, 1893 in Grunshaw, 1988: 14.
- Spathosternum brevicorne Uvarov, 1953 (subjective synonym of Spathosternum pygmaeum Karsch, 1893) in Grunshaw, 1988: 14.
- Spathosternum pygmaeum Karsch, 1893 in Nzekwu, 1990
- Spathosternum pygmaeum Karsch, 1893 in Paul, 1997: 194.
- Spathosternum pygmaeum Karsch, 1893 in Roy, 2003: 323.
- Spathosternum pygmaeum Karsch, 1893 in Baccetti, 2004: 27.