In synonymy:
Frontina Simon, 1884 = Floronia Simon, 1887 (Simon, 1887d: 158, preoccupied, replacement name)

type Araneus bucculentus Clerck, 1757; gender feminine

N.B.: replacement name for Frontina Simon, 1884a: 205 [urn:lsid:nmbe.ch:spidergen:05270], preoccupied in Diptera by Meigen, 1838; considered valid by Millidge, 1984b: 246 and Merrett, Locket & Millidge, 1985: 399, contra Millidge, 1977: 45, who considered it a junior synonym of Tapinopa Westring, 1851.

In synonymy:
Floronia albomaculata (Ohlert, 1867) = Floronia bucculenta (Clerck, 1757) (Thorell, 1870a: 54, sub Linyphia frenata).
Floronia elegans (Walckenaer, 1841, T from Linyphia) = Floronia bucculenta (Clerck, 1757) (Simon, 1929: 726).
Floronia frenata (Wider, 1834) = Floronia bucculenta (Clerck, 1757) (Clerckian names validated by ICZN, 1959 (Direction 104)).
Floronia pallida (C. L. Koch, 1836, T from Theridion) = Floronia bucculenta (Clerck, 1757) (Thorell, 1870a: 54, sub Linyphia frenata).
Floronia sapporensis (Saito, 1934, T from Neriene) = Floronia exornata (L. Koch, 1878) (Ono, 2009a: 589).

Nomen dubium:
Floronia fagei Caporiacco, 1955: 322, f. 18a-e (mf, Venezuela) -- Miller, 2007a: 259.

Floronia annulipes Berland, 1913b: 88, pl. 8, f. 21-23 (Df).

Araneus bucculentus Clerck, 1757: 63, pl. 4, f. 1 (Df).
Araneus bucculentus Martyn, 1793: 29, pl. 6, f. 2 (f).
Linyphia frenata Wider, 1834: 262, pl. 18, f. 4a-c (Dmf) [urn:lsid:nmbe.ch:spidersp:054327].
Theridion pallidum C. L. Koch, 1836a: 64, pl. 94, f. 216 (Df) [urn:lsid:nmbe.ch:spidersp:054328].
Linyphia elegans Walckenaer, 1841: 258 (Df) [urn:lsid:nmbe.ch:spidersp:054329].
Linyphia pallida Blackwall, 1843: 126 (Dm).
Linyphia frenata Westring, 1861: 110 (f).
Linyphia frenata Blackwall, 1864a: 228, pl. 16, f. 151 (mf).
Bolyphantes frenatus Menge, 1866: 137, pl. 26, f. 57 (mf).
Linyphia albomaculata Ohlert, 1867: 81 (Df) [urn:lsid:nmbe.ch:spidersp:054330].
Linyphia frenata Thorell, 1870a: 54 (S of Linyphia albomaculata and Theridion pallidum).
Bolyphantes bucculentus Dahl, 1883: 50.
Frontina bucculenta Simon, 1884a: 207.
Floronia bucculenta Simon, 1887d: 158.
Floronia frenata Chyzer & Kulczyński, 1894: 51, pl. 2, f. 17 (mf).
Floronia bucculenta Simon, 1894a: 708, f. 779, 781, 783 (mf).
Frontina bucculenta Becker, 1896: 10, pl. 1, f. 5 (mf).
Bolyphantes frenatus Bösenberg, 1901: 62, pl. 5, f. 60 (mf).
Frontina frenata Lessert, 1910a: 823.
Floronia bucculenta Fage, 1919: 78, f. 31 (m).
Floronia bucculenta Simon, 1929: 566, 726, f. 834-835 (mf, S of Linyphia elegans).
Floronia bucculenta Locket & Millidge, 1953: 373, f. 223A-F (mf).
Floronia bucculenta Wiehle, 1956: 146, f. 249-256 (mf).
Bolyphantes frenatus Saito, 1959: 78, f. 80a-e (f).
Floronia bucculenta Merrett, 1963b: 364, f. 18A-E (m).
Floronia bucculenta Wiehle, 1967b: 187, f. 23-24 (f).
Floronia bucculenta Tystshenko, 1971: 227, f. 644 (f).
Floronia bucculenta Miller, 1971: 216, pl. XLI, f. 4-7 (mf).
Floronia bucculenta Palmgren, 1975: 34, f. 7.6-7 (mf).
Floronia bucculenta Millidge, 1984b: 246, f. 100 (f).
Floronia bucculenta Roberts, 1987: 142, f. 72b-c (mf).
Floronia bucculenta Izmailova, 1989: 71, f. 49 (f).
Floronia bucculenta Tanasevitch, 1990: 87, f. 13.8-9, 14.21 (mf).
Floronia bucculenta Heimer & Nentwig, 1991: 160, f. 435 (mf).
Floronia bucculenta Roberts, 1995: 363, f. (mf).
Floronia bucculenta Tao, Li & Zhu, 1995: 246, f. 61-68 (mf).
Floronia bucculenta Saaristo, 1996a: 6, f. 13, 15, 17 (mf).
Floronia bucculenta Roberts, 1998: 374, f. (mf).
Floronia bucculenta Song, Zhu & Chen, 1999: 169, f. 94M-N, 95A-B (mf).
Floronia bucculenta Hu, 2001: 498, f. 330.1-5 (f).
Floronia bucculenta Song, Zhu & Chen, 2001: 127, f. 66A-F (mf).
Floronia bucculenta Saaristo, in Marusik & Koponen, 2008a: 9, pl. 2 (m).
Floronia bucculenta Dupérré, 2013: 7, f. 55 (m).
Floronia bucculenta Zhou et al., 2023a: 311, f. 1A-D (mf).

Linyphia exornata L. Koch, 1878c: 746, pl. 15, f. 10 (Df).
Oecobius sapporense Saito, 1934b: 271, pl. 12, f. 1, pl. 14, f. 33 (Df) [urn:lsid:nmbe.ch:spidersp:005971].
Linyphia exornata Saito, 1934b: 310, pl. 13, f. 17, pl. 15, f. 60 (Df).
Oecobius sapporense Saito, 1959: 34, f. 7a-d (f).
Floronia bucculenta Yaginuma, 1960: 43, f. 41 (f).
Floronia bucculenta Oi, 1960a: 193, f. 225-230 (mf, S, rejected).
Floronia bucculenta Paik, 1965a: 59, f. 1-2 (mf).
Oecobius sapporense Kritscher, 1966a: 293, f. 16 (f).
Floronia bucculenta Yaginuma, 1971: 43, f. 41.1-2 (f).
Floronia bucculenta Paik, 1978e: 247, f. 104.1-9 (mf).
Floronia bucculenta Yaginuma, 1986a: 71, f. 38.1 (mf).
Floronia bucculenta Chikuni, 1989b: 52, f. 27 (mf).
Floronia exornata Saaristo, 1996a: 6, f. 14, 16, 18 (removed mf from S of F. bucculenta, contra Oi, 1960a: 193).
Floronia exornata Namkung, 2002: 159, f. 17.12a-b (mf).
Floronia exornata Namkung, 2003: 161, f. 17.12a-b (mf).
Floronia exornata Lee, Kang & Kim, 2009: 126, f. 24a-c (mf).
Neriene sapporense Santos, Gonzaga & Hormiga, 2009: 102 (Tf from Oecobius).
Floronia exornata Ono, Matsuda & Saito, 2009: 316, f. 861-866 (mf).
Floronia exornata Ono, 2009a: 589 (S of Neriene sapporense).

Floronia huishuiensis Zhou & Xu, in Zhou et al., 2023a: 311, f. 2A-D, 3A-B, 4A-E, 5A-F (Dmf).

Floronia hunanensis Li & Song, 1993: 251, f. 3A-I (Dmf).
Floronia hunanensis Song & Li, 1997: 405, f. 8A-G (mf).
Floronia hunanensis Song, Zhu & Chen, 1999: 169, f. 94O-P, 95C (mf).
Floronia hunanensis Yin et al., 2012: 486, f. 223a-i (mf).

Floronia jiuhuensis Li & Zhu, in Li, Sha & Zhu, 1987: 43, f. 1A-C (Dm).
Floronia jiuhuensis Song, Zhu & Chen, 1999: 169, f. 95D-E (m).

Floronia zhejiangensis Zhu, Chen & Sha, 1987: 139, f. 1-8 (Dmf).
Floronia zhejiangensis Chen & Zhang, 1991: 169, f. 167.1-8 (mf).
Floronia zhejiangensis Song, Zhu & Chen, 1999: 169, f. 94Q-R, 95F-G (mf).
Floronia zhejiangensis Zhou et al., 2023a: 318, f. 6A-D (mf).