In synonymy:
Cardimia Mello-Leitão, 1940 = Diphya Nicolet, 1849 (Ott, Rodrigues & Brescovit, 2023: 2, removed from S of Azilia)
In synonymy:
Diphya bilineata Tullgren, 1901 = Diphya limbata Simon, 1896 (Simon, 1902h: 26)
Diphya brevipes Nicolet, 1849 = Diphya macrophthalma Nicolet, 1849 (Petrunkevitch, 1911: 336)
Diphya capensis Simon, 1894 = Diphya simoni Kauri, 1950 (Marusik, 2017b: 135, sub D. tanikawai)
Diphya crassipes Nicolet, 1849 = Diphya macrophthalma Nicolet, 1849 (Petrunkevitch, 1911: 336)
Diphya eximia (Mello-Leitão, 1940, T from Azilia) = Diphya bicolor Vellard, 1926 (Ott, Rodrigues & Brescovit, 2023: 2)
Diphya longipes Nicolet, 1849 = Diphya macrophthalma Nicolet, 1849 (Petrunkevitch, 1911: 336)
Diphya ornata (Mello-Leitão, 1935, T from Oarces) = Diphya bicolor Vellard, 1926 (Ott, Rodrigues & Brescovit, 2023: 2)
Diphya pallida Tullgren, 1902 = Diphya limbata Simon, 1896 (Tanikawa, 1995b: 107)
Diphya tanikawai Marusik, 2017 = Diphya simoni Kauri, 1950 (Omelko, Marusik & Lyle, 2020: 266)