In synonymy:
Leptosparassus Järvi, 1912 = Polybetes Simon, 1897 (Gerschman & Schiapelli, 1965b: 314)
Streptaedoea Järvi, 1912 = Polybetes Simon, 1897 (Gerschman & Schiapelli, 1965b: 314)
Transferred to other genera:
Polybetes proximus Mello-Leitão, 1943 -- see Nungara
In synonymy:
Polybetes bidentatus (Järvi, 1914, T from Streptaedoea) = Polybetes germaini Simon, 1897 (Gerschman & Schiapelli, 1965b: 321)
Polybetes cancroides Mello-Leitão, 1945 = Polybetes obnuptus Simon, 1897 (Gerschman & Schiapelli, 1965b: 324)
Polybetes funestus (Keyserling, 1880) = Polybetes fasciatus (Keyserling, 1880) (Keyserling, 1891: 254, sub Sparassus)
Polybetes hispidus (Nicolet, 1849, T from Olios) = Polybetes martius (Nicolet, 1849) (Simon, 1880a: 250, sub Isopeda)
Polybetes humeratus Mello-Leitão, 1941 = Polybetes rapidus (Keyserling, 1880) (Gerschman & Schiapelli, 1965b: 334)
Polybetes immigrans (Strand, 1913, T from Isopeda) = Polybetes pythagoricus (Holmberg, 1875) (Hirst, 1990: 25)
Polybetes maculatus (Keyserling, 1880) = Polybetes pythagoricus (Holmberg, 1875) (Brèthes, 1909a: 46)
Polybetes retroreceptaculatus (Järvi, 1912, T from Streptaedoea) = Polybetes germaini Simon, 1897 (Gerschman & Schiapelli, 1965b: 321)
Polybetes semivittatus Mello-Leitão, 1938 = Polybetes rapidus (Keyserling, 1880) (Gerschman & Schiapelli, 1965b: 334)
Polybetes tucumanus Mello-Leitão, 1941 = Polybetes obnuptus Simon, 1897 (Gerschman & Schiapelli, 1965b: 324)
Polybetes vittatus Mello-Leitão, 1938 = Polybetes trifoveatus (Järvi, 1912) (Gerschman & Schiapelli, 1965b: 335)