In synonymy:
Cardimia Mello-Leitão, 1940 = Diphya Nicolet, 1849 (Ott, Rodrigues & Brescovit, 2023: 2, removed from S of Azilia)

type Diphya macrophthalma Nicolet, 1849; gender feminine

N.B.: considered a senior synonym of Cardimia Mello-Leitão, 1940a: 61 [urn:lsid:nmbe.ch:spidergen:01451] (in Araneidae, type C. eximia Mello-Leitão, 1940) by Ott, Rodrigues & Brescovit, 2023: 2 (contra Levi, 2002: 562, who synonymized it with Azilia Keyserling, 1881); type genus of the subfamily Diphyainae Simon, 1894a: 742 (sub Diphyeae).

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).

Lophomma albulum Paik, 1983a: 31, f. 15-23 (Dm; N.B.: probably an araneid per Eskov, 1992b: 167).
Lophomma albulum Namkung, 2002: 199, f. 17.51a-b (m, Df).
Lophomma albulum Namkung, 2003: 201, f. 17.51a-b (mf).
Lophomma albulum Seo, 2005b: 49, f. 1-2 (f).
Diphya albulum Marusik, Gnelitsa & Koponen, 2007: 161 (T from Lophomma).
Diphya albula Kim & Lee, 2013: 36, f. 21A-B (m).

Diphya bicolor Vellard, 1926: 328, f. 1 (Dm).
Oarces ornatus Mello-Leitão, 1935b: 325, f. 4, text-f. 3 (Dm) [urn:lsid:nmbe.ch:spidersp:005793].
Cardimia eximia Mello-Leitão, 1940a: 61, f. 7a-b (Df) [urn:lsid:nmbe.ch:spidersp:015485].
Azilia eximia Levi, 2002: 562 (T from Cardimia).
Diphya bicolor Ott, Rodrigues & Brescovit, 2023: 2, f. 1-38 (mf, S of Azilia eximia and Oarces ornatus).

Diphya foordi Omelko, Marusik & Lyle, 2020: 261, f. 1H-I, 2B-C, 3B,I, 4E,G, 5C, 6B, 7B,E, 8A, 11B, 13E-G (Dmf).
Diphya foordi Dippenaar-Schoeman et al., 2023a: 6, f. 1-7 (mf).

Diphya guiyang J. S. Zhang & Yu, in Zhang et al., 2022e: 135, f. 1A-D, 2A-E, 3-G, 4A-F (Dmf).

Diphya leroyorum Omelko, Marusik & Lyle, 2020: 264, f. 1C, 2F-G, 3G, 6C, 7F-G, 8D (Dm).
Diphya leroyorum Dippenaar-Schoeman et al., 2023a: 7, f. 1-3 (m).

Diphya limbata Simon, 1896c: 144 (Df).
Diphya bilineata Tullgren, 1901b: 216, pl. 17, f. 3 (Df) [urn:lsid:nmbe.ch:spidersp:051571].
Diphya pallida Tullgren, 1902: 29, pl. 3, f. 2, 2c (Dmf) [urn:lsid:nmbe.ch:spidersp:056048].
Diphya limbata Simon, 1902h: 26 (S od Diphya bilineata).
Diphya spinifera Wunderlich, 1986: 219, f. 230-231 (m; misidentified per Tanikawa, 1995b: 107).
Diphya limbata Tanikawa, 1995b: 107, f. 20-21, 23-24 (mf, S of Diphya pallida).

Diphya macrophthalma Nicolet, 1849: 406 (Df).
Diphya crassipes Nicolet, 1849: 406 (Df) [urn:lsid:nmbe.ch:spidersp:051572].
Diphya brevipes Nicolet, 1849: 407 (Dmf) [urn:lsid:nmbe.ch:spidersp:051573].
Diphya longipes Nicolet, 1849: 407 (Dm) [urn:lsid:nmbe.ch:spidersp:051574].
Thomisa macrophthalma Simon, 1864: 434.
Diphya macrophthalma Simon, 1889a: 217.
Diphya macrophthalma Simon, 1894a: 714.
Diphya macrophthalma Petrunkevitch, 1911: 336 (S of Diphya brevipes, D. crassipes and D. longipes).
Diphya macrophthalma Tanikawa, 1995b: 106, f. 17 (f, S of D. rugosa; rejected by Marusik & Omelko, 2017e: 6).
Diphya macrophthalma Marusik & Omelko, 2017c: 203, f. 9-11, 32-33, 47 (f).
Diphya macrophthalma Marusik & Omelko, 2017e: 2, f. 1-30, 33-35 (mf).

Diphya napo Ott, Rodrigues & Brescovit, 2023: 9, f. 39-57 (Dmf).

Diphya okumae Tanikawa, 1995b: 102, f. 1-13 (Dmf).
Diphya okumae Zhu, Song & Zhang, 2003: 56, f. 22A-I (mf).
Diphya okumae Namkung, 2003: 239, f. 18.23a-b (f).
Diphya okumae Tanikawa, 2007c: 96, f. 316-317, 768-771 (mf).
Diphya okumae Kim, Kim & Lee, 2008: 44, f. 35, 35.1 (f).
Diphya okumae Tanikawa, 2009: 406, f. 7-8 (mf).
Diphya okumae Zhu & Zhang, 2011: 155, f. 103A-I (mf).
Diphya okumae Kim & Lee, 2013: 37, f. 22A-B (f).

Diphya pumila Simon, 1889b: 226 (Dm).
Diphya pumila Simon, 1894a: 740, f. 823-824 (m).
Diphya pumila Tanikawa, 1995b: 103, f. 19 (f).

Diphya qianica Zhu, Song & Zhang, 2003: 57, f. 23A-C (Df).

Diphya rugosa Tullgren, 1902: 31, pl. 3, f. 3 (Df).
Diphya macrophthalma Tanikawa, 1995b: 106, f. 18 (f; misidentified per Marusik & Omelko, 2017e: 6).
Diphya rugosa Marusik & Omelko, 2017e: 6, f. 31-32 (f, removed from S of D. macrophthalma, contra Tanikawa, 1995b: 106).

Diphya capensis Simon, 1894a: 744 (nomen nudum) [urn:lsid:nmbe.ch:spidersp:049420].
Diphya simoni Kauri, 1950: 71, f. 6 (Df).
Diphya capensis Bonnet, 1956: 1477 (nomen nudum).
Diphya tanikawai Marusik, 2017b: 135, f. 1-6, 13-18 (Df, S of the nomen nudum Diphya capensis) [urn:lsid:nmbe.ch:spidersp:049419].
Diphya simoni Marusik, 2017b: 127, f. 7-9, 19 (f).
Diphya simoni Omelko, Marusik & Lyle, 2020: 266, f. 1D-F, 2D-E, 3C,E-F, 4A-B,F,H-I, 5A-B,E,G-I, 6D, 7C,H, 8C, 9A-B,D-E, 10F-K, 11A, 12A-P, 13D,K-L (Dm, f, S of Diphya tanikawai).
Diphya simoni Dippenaar-Schoeman et al., 2020t: 6, 4 f. (f).
Diphya tanikawai Dippenaar-Schoeman et al., 2020t: 7, 2 f. (f).
Diphya simoni Dippenaar-Schoeman et al., 2023a: 8, p. 4: 2 f., p. 5: 1-4, p. 8: 1-8 (mf).

Diphya songi Wu & Yang, 2010: 594, f. 1-10 (Dmf).

Diphya spinifera Tullgren, 1902: 26, pl. 2, f. 4, pl. 3, f. 1 (Dmf).
Diphya spinifera Tanikawa, 1995b: 110, f. 22, 25-26 (mf).
Diphya spinifera Álvarez-Padilla & Hormiga, 2011a: 756, f. 26A-G, 27A-G, 28A-F, 29A-G, 30A-C (mf; possibly misidentified per Marusik & Omelko, 2017e: 7).

Diphya taiwanica Tanikawa, 1995b: 105, f. 14-16 (Df).
Diphya taiwanica Song, Zhu & Chen, 1999: 213, f. 119N (f).
Diphya taiwanica Zhu, Song & Zhang, 2003: 58, f. 24A-C (f).

Lophomma tanasevitchi Zhang, Zhang & Yu, 2003: 407, f. 1A-C (Dm).
Diphya tanasevitchi Marusik, Gnelitsa & Koponen, 2007: 163 (T from Lophomma).
Diphya tanasevitchi Yu, Zhang & Omelko, 2014: 33, f. 14-25 (m, Df).

Diphya vanderwaltae Omelko, Marusik & Lyle, 2020: 270, f. 3H, 4C, 5F, 11C, 13A-C (Df).
Diphya vanderwaltae Dippenaar-Schoeman et al., 2023a: 9, 1-3 (f).

Diphya weimiani J. S. Zhang & Yu, in Zhang et al., 2022e: 141, f. 5A-F, 6A-C (Df).

Diphya wesolowskae Omelko, Marusik & Lyle, 2020: 273, f. 1A-B, 2A,H, 3A-D, 4D, 5D, 6A, 7A,D, 8B, 9C,F-H, 10A-E, 11D, 13H-J (Dmf).
Diphya wesolowskae Dippenaar-Schoeman et al., 2023a: 10, f. 1-5 (mf).

Diphya sp. Marusik & Kovblyuk, 2011: 235, f. 34.6-9 (mf).
Diphya wulingensis Yu, Zhang & Omelko, 2014: 31, f. 1-13 (Dmf).
Diphya wulingensis Marusik, Omelko & Koponen, 2017: 143, f. 1-23 (mf).
Diphya wulingensis Zhan et al., 2019: 5, f. 1A-D, 4A-E (f).