In synonymy:
Keijia Yoshida, 2001 = Platnickina Koçak & Kemal, 2008 (Koçak & Kemal, 2008a: 3, preoccupied, replacement name)

type Keijia maculata Yoshida, 2001; gender feminine

N.B.: replacement name for Keijia Yoshida, 2001c: 169 [urn:lsid:nmbe.ch:spidergen:03432], preoccupied in Crustacea by Manning, 1995.

In synonymy:
Platnickina blatchleyi (Bryant, 1945) = Platnickina adamsoni (Berland, 1934) (Archer, 1946: 46, sub Theridion hobbsi).
Platnickina cinerascens (Roewer, 1942) = Platnickina alabamensis (Gertsch & Archer, 1942) (Levi, 1957a: 58, sub Theridion).
Platnickina hobbsi (Gertsch & Archer, 1942) = Platnickina adamsoni (Berland, 1934) (Levi, 1959b: 112, sub Theridion).
Platnickina insulicola (Bryant, 1947) = Platnickina adamsoni (Berland, 1934) (Levi, 1957a: 62, sub Theridion hobbsi).
Platnickina magnificum (Archer, 1950) = Platnickina adamsoni (Berland, 1934) (Levi, 1957a: 63, sub Theridion hobbsi).
Platnickina talmo (Chamberlin & Ivie, 1944) = Platnickina alabamensis (Gertsch & Archer, 1942) (Levi, 1957a: 58, sub Theridion).

Homonym replaced:
Platnickina cinerea (Emerton, 1913) -- see Platnickina alabamensis (see Gertsch & Archer, 1942)

Theridion adamsoni Berland, 1934a: 102, f. 6-9 (Df).
Theridion hobbsi Gertsch & Archer, 1942: 5, f. 6 (Df) [urn:lsid:nmbe.ch:spidersp:056248].
Theridion blatchleyi Bryant, 1945c: 205, f. 5 (Dm) [urn:lsid:nmbe.ch:spidersp:056246].
Theridion hobbsi Archer, 1946: 46 (S of Theridion blatchleyi).
Theridion insulicola Bryant, 1947b: 88, f. 1 (Df) [urn:lsid:nmbe.ch:spidersp:056249].
Chindellum magnificum Archer, 1950: 13, pl. I, f. 2 (Df) [urn:lsid:nmbe.ch:spidersp:056250].
Theridion hobbsi Levi, 1957a: 62, f. 198-199, 209, 213-214 (mf, S of Chindellum magnificum and Theridion insulicola).
Theridion adamsoni Levi, 1959b: 111 (S of Theridion hobbsi).
Theridion adamsoni Marples, 1964: 409, f. 11 (Dm).
Theridion adamsoni Levi, 1967c: 181, f. 20-23 (mf).
Coleosoma adamsoni Saaristo, 1978: 117, f. 183-191 (m, Df, T from Theridion).
Theridion adamsoni Kumada, 1986: 2, f. 1-8 (mf).
Theridion adamsoni Chikuni, 1989b: 43, f. 61 (mf).
Theridion adamsoni Saito, 1992c: 946, f. 6 (f).
Theridion adamsoni Zhu, 1998: 162, f. 101A-E (mf).
Theridion adamsoni Song, Zhu & Chen, 1999: 137, f. 71G-H, M-N (mf).
Keijia mneon Yoshida, 2001c: 172, f. 8, 53-55 (mf, T from Theridion, S of Coleosoma adamsoni; rejected by Ono, 2011b: 452; misidentified per Dupérré, 2023: 231).
Theridion adamsoni Namkung, 2002: 99, f. 13.17a-b (mf).
Keijia mneon Namkung, 2003: 101, f. 13.17a-b (mf; misidentified per Dupérré, 2023: 231.
Keijia mneon Yoshida, 2003a: 84, f. 213-215 (mf; misidentified per Dupérré, 2023: 231.
Keijia mneon Saaristo, 2006: 62, f. 34-42 (mf; misidentified per Dupérré, 2023: 231.
Keijia mneon Yoshida, 2009b: 374, f. 171-172 (mf; misidentified per Dupérré, 2023: 231).
Platnickina mneon Saaristo, 2010: 257, f. 37.75-80 (mf; misidentified per Dupérré, 2023: 231).
Platnickina adamsoni Ono, 2011b: 452, f. 56-61 (mf, S with P. mneon rejected, contra Yoshida, 2001c: 172).
Keijia mneon Yin et al., 2012: 352, f. 144a-c (f; misidentified per Dupérré, 2023: 231).
Platnickina mneon Jin, 2018: 29, f. 4-19.A-C, pl. 7 (f; misidentified per Dupérré, 2023: 231).
Platnickina mneon Suzuki & Nakama, 2021: 32, f. 1, 5 (m; misidentified per Dupérré, 2023: 231).
Platnickina mneon Dippenaar-Schoeman et al., 2021z: 65, 6 f. (mf; misidentified per Dupérré, 2023: 231).
Platnickina mneon Baert et al., 2023: 32, f. 121A-C (mf; misidentified sensu Dupérré, 2023: 231).
Platnickina adamsoni Sherwood & Sharp, 2023a: 356, f. 1a-d (f).

Theridion cinereum Emerton, 1913a: 212, pl. 1, f. 2 (Df; preoccupied by Thorell, 1875, see Theridion cinereum) [urn:lsid:nmbe.ch:spidersp:056252].
Theridion alabamense Gertsch & Archer, 1942: 4 (replacement name).
Theridion cinerascens Roewer, 1942a: 502 (superfluous replacement name) [urn:lsid:nmbe.ch:spidersp:056247].
Theridion americanum Chamberlin & Ivie, 1944: 46, f. 89, 106 (f).
Theridion talmo Chamberlin & Ivie, 1944: 55, f. 81, 88 (Dm) [urn:lsid:nmbe.ch:spidersp:056251].
Theridion alabamense Kaston, 1948: 107, f. 143, 165-166 (m, Df).
Theridion alabamense Levi, 1957a: 58, f. 202-203, 206-208 (mf, S of Theridion cinerascens, T. cinereum Emerton and T. talmo).
Keijia alabamensis Yoshida, 2001c: 169 (T from Theridion).
Platnickina alabamensis Koçak & Kemal, 2008a: 3 (T from Keijia).
Keijia alabamensis Paquin et al., 2008c: 32, f. 32-36 (mf).

Theridion antonii Keyserling, 1884a: 54, pl. 2, f. 31 (Dm).
Theridion antoni Levi, 1957a: 60, f. 196-197, 205, 215-216, 219-220 (m, Df).
Theridion antoni Kaston, 1977: 15, f. 5 (m).
Keijia antoni Yoshida, 2001c: 169 (Tmf from Theridion).
Platnickina antoni Koçak & Kemal, 2008a: 3 (T from Keijia).

Platnickina fritilla Gao & Li, 2014: 77, f. 61A-D, 62A-C, 63A-E, 64A-D (Dmf).

Theridion kijabei Berland, 1920c: 153, f. 181-183 (Dmf).
Keijia kijabei Knoflach, 2004: 189 (Tmf from Theridion).
Platnickina kijabei Koçak & Kemal, 2008a: 3 (T from Keijia).

Keijia maculata Yoshida, 2001c: 170, f. 43-49 (Dmf).
Keijia maculata Yoshida, 2003a: 85, f. 203-209 (mf).
Platnickina maculata Koçak & Kemal, 2008a: 3 (T from Keijia).
Keijia maculata Yoshida, 2009b: 374, f. 167-168 (mf).
Platnickina maculata Serita, 2021e: 270, f. 1d-e (f).
Platnickina maculata Hidaka, 2022d: 97, f. 5-8 (mf).
Platnickina maculata Noguchi et al., 2023: 145, f. 3J (f).

Theridion mneon Bösenberg & Strand, 1906: 142, pl. 12, f. 286 (Df).
Keijia mneon Yoshida, 2001c: 172 (T from Theridion).
Platnickina mneon Koçak & Kemal, 2008a: 3 (T from Keijia).
Platnickina mneon Ono, 2011b: 452 (revalidation of Platnickina adamsoni).
Platnickina mneon Dupérré, 2023a: 231, 73A-C (f, revalidation of Platnickina adamsoni confirmed).

Theridion nigropunctatum Lucas, 1846: 266, pl. 16, f. 6 (Df).
Theridion nigropunctatum Simon, 1873a: 100 (Dm).
Theridion nigropunctatum Simon, 1914: 259, 296, f. 516-517 (mf).
Theridion nigropunctatum Levy & Amitai, 1982a: 97, f. 25-31 (mf).
Theridion nigropunctatum Wunderlich, 1987a: 219, f. 574-576 (mf).
Theridion nigropunctatum Levy, 1998b: 189, f. 357-363 (mf).
Keijia nigropunctata Wunderlich, 2008b: 389, f. 522-526 (Tmf from Theridion).
Theridion nigropunctatum Le Peru, 2011: 481, f. 836 (mf).
Platnickina nigropunctata Öztürk et al., 2013: 70, f. 3-5 (mf).
Platnickina nigropunctata Lecigne, 2018b: 77, f. 11D (f).
Platnickina nigropunctata Bosmans & Gavalas, 2023: 79, f. 38A-D (mf).

Theridion puncto-sparsum Emerton, 1882: 12, pl. 1, f. 6 (Dmf).
Theridion punctosparsum Keyserling, 1884a: 14, pl. 1, f. 3 (f).
Theridion punctosparsum Comstock, 1940: 365, f. 348 (f).
Theridion punctosparsum Kaston, 1948: 108, f. 133-134 (f).
Allotheridion punctosparsum Archer, 1950: 20 (Tmf from Theridion).
Theridion punctosparsum Levi, 1957a: 60, f. 194-195, 204, 217-218, 220-221 (mf).
Keijia punctosparsa Yoshida, 2001c: 169 (Tmf from Theridion).
Platnickina punctosparsa Koçak & Kemal, 2008a: 3 (T from Keijia).

Theridion qionghaiensis Zhu, 1998: 164, f. 102A-E (Dmf).
Theridion qionghaiensis Song, Zhu & Chen, 1999: 142, f. 78I-J, O-P (mf).
Keijia qionghaiensis Yoshida, 2001c: 169 (Tmf from Theridion).
Platnickina qionghaiensis Koçak & Kemal, 2008a: 3 (T from Keijia).

Theridion sterninotatum Bösenberg & Strand, 1906: 143, f. 200, 289 (Dmf).
Theridion sterninotatum Yaginuma, 1960: 37, f. 35 (f).
Theridion sterninotatum Namkung, 1964: 35, f. 14a-b (f).
Theridion sterninotatum Yaginuma, 1971: 37, f. 35 (f).
Theridion sterninotatum Hu, 1984: 172, f. 179.4 (f).
Theridion sterninotatum Kumada, 1986: 1, f. 9-13 (mf).
Theridion sterninotatum Yaginuma, 1986a: 35, f. 20.3 (mf).
Theridion sterninotatum Chikuni, 1989b: 43, f. 60 (mf).
Theridion sterninotatum Chen & Zhang, 1991: 155, f. 152.1-3 (f).
Theridion sterninotatum Logunov, 1992e: 59, f. 4 (m).
Theridion sterninotatum Zhu, 1998: 156, f. 96A-F (mf).
Theridion sterninotatum Song, Zhu & Chen, 1999: 142, f. 80C-D, K-L (mf).
Keijia sterninotata Yoshida, 2001c: 170, f. 7, 50-52 (Tmf from Theridion).
Theridion sterninotatum Namkung, 2002: 98, f. 13.16a-c (mf).
Theridion sterninotatum Kim & Cho, 2002: 313, f. 823-828 (f).
Keijia sterninotata Namkung, 2003: 100, f. 13.16a-c (mf).
Keijia sterninotata Yoshida, 2003a: 86, f. 17, 210-212, 566 (mf).
Platnickina sterninotata Koçak & Kemal, 2008a: 4 (T from Keijia).
Keijia sterninotata Yoshida, 2009b: 374, f. 16, 169-170 (mf).
Keijia sterninotata Yin et al., 2012: 353, f. 145a-e (mf).
Platnickina sterninotata Kim, 2021: 124, f. 53A-G, pl. 25 (mf).
Platnickina sterninotata Suzuki et al., 2023: 45, f. 5I (f).

Aranea tincta Walckenaer, 1802: 208 (D).
Aranea punctata Walckenaer, 1802: 210 (D).
Theridion tinctum Walckenaer, 1805: 75.
Theridion longimanum Sundevall, 1831: 3, 1832: 110 (Dmf).
Theridion irroratum C. L. Koch, 1838: 120, f. 327 (Df).
Theridion tinctum Walckenaer, 1841: 308 (Dmf).
Steatoda irrorata C. L. Koch, 1850: 17.
Theridion tinctum Blackwall, 1864a: 190, pl. 14, f. 121 (mf).
Steatoda punctulata Menge, 1868: 160, pl. 30, f. 68 (Dmf).
Theridion tinctum Chyzer & Kulczyński, 1894: 34, pl. 1, f. 32 (mf).
Theridion tinctum Becker, 1896: (2): 88, pl. 19, f. 1 (mf).
Theridion tinctum Bösenberg, 1902: 103, pl. 9, f. 127 (mf).
Theridion tinctum Engelhardt, 1910: 72, f. 25 (f).
Theridion tinctum Simon, 1914: 258, 296, f. 514-515 (mf).
Theridion tinctum Wiehle, 1937: 154, f. 85-90 (mf).
Theridion tinctum Ovsyannikov, 1937: 90, f. 1 (f).
Theridion tinctum Locket & Millidge, 1953: 75, f. 48C-D, 49B (mf).
Theridion tinctum Levi, 1957a: 61, f. 200-201, 210-212 (mf).
Theridion tinctum Miller, 1971: 193, pl. XXXIV, f. 8-9 (mf).
Theridion tinctum Palmgren, 1974b: 20, f. 3.15-19 (mf).
Theridion tinctum Punda, 1975b: 64, f. 139-140 (f).
Theridion tinctum Müller, 1982a: 248, f. 3 (f).
Theridion tinctum Roberts, 1983: 238, f. 82-84 (mf).
Theridion tinctum Roberts, 1985: 184, f. 83f (mf).
Theridion tinctum Heimer & Nentwig, 1991: 302, f. 812 (mf).
Theridion tinctum Roberts, 1995: 287, f. (mf).
Theridion tinctum Roberts, 1998: 301, f. (mf).
Keijia tincta Yoshida, 2001c: 169 (Tmf from Theridion).
Theridion tinctum Almquist, 2006: 105, f. 127a-f (mf).
Keijia tincta Agnarsson, Coddington & Knoflach, 2007: 372, f. 130-133, 186 (m).
Platnickina tincta Koçak & Kemal, 2008a: 4 (T from Keijia).
Keijia tincta Wunderlich, 2008b: 389, f. 517-521 (m).
Theridion tinctum Le Peru, 2011: 485, f. 852 (mf).
Platnickina tincta IJland & van Helsdingen, 2019: 18, f. 14A-E (f).
Platnickina tincta Vanuytven, 2021: 37, 234, f. A.24b, B.245-247 (m).
Theridion tinctum Breitling, 2021a: 28.