type Neospintharus parvus Exline, 1950; gender masculine

N.B.: removed from the synonymy of Argyrodes Simon, 1864 by Agnarsson, 2004: 479, contra Levi & Levi, 1962: 24.

In synonymy:
Neospintharus bifissus (F. O. Pickard-Cambridge, 1902, T from Argyrodes) = Neospintharus furcatus (O. Pickard-Cambridge, 1894) (Exline & Levi, 1962: 116, sub Argyrodes).
Neospintharus frontatus (Banks, 1908, T from Argyrodes) = Neospintharus furcatus (O. Pickard-Cambridge, 1894) (Exline & Levi, 1962: 116, sub Argyrodes).
Neospintharus furcatus (O. Pickard-Cambridge, 1898) = Neospintharus furcatus (O. Pickard-Cambridge, 1894) (Exline & Levi, 1962: 116, sub Argyrodes).
Neospintharus gansuensis (Zhu, 1998, T from Argyrodes) = Neospintharus fur (Bösenberg & Strand, 1906) (Yoshida, 2001d: 184, sub Argyrodes).
Neospintharus montanus (Keyserling, 1884, T from Argyrodes) = Neospintharus obscurus (Keyserling, 1884) (Exline & Levi, 1962: 115, sub Argyrodes).

Argyrodes baboquivari Exline & Levi, 1962: 119, f. 89-94 (Dmf).
Neospintharus baboquivari Agnarsson, 2004: 479 (T from Argyrodes).
Neospintharus baboquivari Jiménez et al., 2018: 7, f. 18-19 (f).

Neospintharus baekamensis Seo, 2010a: 172, f. 1-6 (Dmf).

Argyrodes bicornis O. Pickard-Cambridge, 1880b: 334, pl. 29, f. 12 (Dm).
Argyrodes bicornis Exline & Levi, 1962: 125, f. 95-96 (m, removed from S of Argyrodes trigonum, rejecting F. O. Pickard-Cambridge, 1902a: 404).
Neospintharus bicornis Agnarsson, 2004: 479 (T from Argyrodes).

Epeira cognata Blackwall, 1877: 17, pl. 2, f. 12 (Dmf).
Argyrodes cognatus Saaristo, 1978: 116, f. 149-156 (mf).
Argyrodes cognatus Roberts, 1978: 926, f. 51-56 (mf).
Argyrodes cognatus Saaristo, 2000: 41, f. 1D, 2D, 6A-D (mf).
Argyrodes cognatus Saaristo, 2010: 247, f. 37.39a-b, 47 (mf).
Neospintharus cognatus Pett, Ferreira & Agnarsson, 2025: 24 (T from Argyrodes).

Argyrodes concisus Exline & Levi, 1962: 120, f. 56-60 (Dmf).
Neospintharus concisus Agnarsson, 2004: 479 (Tmf from Argyrodes).

Argyrodes fur Bösenberg & Strand, 1906: 133, pl. 11, f. 226 (Dmf).
Conopistha fur Namkung, Paik & Yoon, 1972: 92, f. 2 (f).
Argyrodes fur Yaginuma, 1986a: 51, f. 28.3 (mf).
Argyrodes fur Chikuni, 1989b: 34, f. 24 (mf).
Argyrodes fur Zhu & Song, 1991: 135, f. 7A-C (f).
Argyrodes fur Zhu, 1998: 200, f. 129A-C (f).
Argyrodes gansuensis Zhu, 1998: 202, f. 131A-C (Dm) [urn:lsid:nmbe.ch:spidersp:007050].
Argyrodes fur Song, Zhu & Chen, 1999: 100, f. 46C-D (f).
Argyrodes gansuensis Song, Zhu & Chen, 1999: 100, f. 46I-J (m).
Argyrodes fur Yoshida, 2001d: 184, f. 25-27 (mf, S of Argyrodes gansuensis).
Argyrodes fur Namkung, 2002: 135, f. 13.52a-b (mf).
Argyrodes fur Kim & Cho, 2002: 301, f. 787-792 (m).
Argyrodes fur Namkung, 2003: 137, f. 13.52a-b (mf).
Argyrodes fur Yoshida, 2003a: 151, f. 407-409, 590 (mf).
Neospintharus fur Agnarsson, 2004: 479 (T from Argyrodes).
Neospintharus fur Kim & Kim, 2007: 222, f. 4A-J, 6C-D (mf).
Neospintharus fur Yoshida, 2009b: 386, f. 292-294 (mf).
Argyrodes fur Zhu & Zhang, 2011: 82, f. 44A-F (mf).
Neospintharus fur Vanuytven, 2021: 196, f. B.193d, B.195b (m).
Neospintharus fur Kim, 2021: 83, f. 34A-E, pl. 15 (f).

Ariamnes furcata O. Pickard-Cambridge, 1894a: 129, pl. 17, f. 10 (Df).
Argyrodes furcata O. Pickard-Cambridge, 1898a: 258, pl. 38, f. 3 (Df; preoccupied by O. Pickard-Cambridge, 1894, see above) [urn:lsid:nmbe.ch:spidersp:066481].
Rhomphaea furcata F. O. Pickard-Cambridge, 1902a: 407, pl. 38, f. 15-15b (f, T from Ariamnes).
Rhomphaea bifissa F. O. Pickard-Cambridge, 1902a: 407, pl. 38, f. 16-16b (Df, new name for Argyrodes furcata O. Pickard-Cambridge, 1898) [urn:lsid:nmbe.ch:spidersp:055266].
Argyrodes frontatus Banks, 1908: 208, f. 9 (Dmf) [urn:lsid:nmbe.ch:spidersp:055267].
Argyrodes furcatus Exline & Levi, 1962: 116, f. 84-88 (mf, S of Argyrodes bifissus, A. frontatus and A. furcatus O. Pickard-Cambridge, 1898).
Neospintharus furcatus Agnarsson, 2004: 479 (T from Argyrodes).

Neospintharus kandelensis Tharmarajan & Benjamin, 2022: 20, f. 8A-B, E-F, I-J, 9A-E, 10A, C-D (Dmf).

Neospintharus matjazkuntneri Agnarsson & Pett, in Pett, Ferreira & Agnarsson, 2025: 22, f. 16A-F, 17A-D (Dmf).

Argyrodes nipponicus Kumada, 1990: 2, f. 1-5 (Dmf).
Argyrodes nipponicus Zhu & Song, 1991: 142, f. 14A-C (f).
Argyrodes nipponicus Zhu, 1998: 201, f. 130A-E (mf).
Argyrodes nipponicus Song, Zhu & Chen, 1999: 100, f. 47C-D, M (mf).
Argyrodes nipponicus Yoshida, 2001d: 184, f. 28-30 (mf).
Argyrodes nipponicus Yoshida, 2003a: 151, f. 410-412 (mf).
Neospintharus nipponicus Agnarsson, 2004: 479 (T from Argyrodes).
Neospintharus nipponicus Yoshida, 2009b: 386, f. 295-297 (mf).
Argyrodes nipponicus Yin et al., 2012: 283, f. 101a-c (f).
Neospintharus nipponicus Kim et al., 2015a: 25, f. 1-5 (m).
Neospintharus nipponicus Kim et al., 2015d: 25, f. 1-5 (m).
Neospintharus nipponicus Kim, 2021: 85, f. 35A-K (mf).

Argyrodes obscurus Keyserling, 1884a: 194, pl. 9, f. 116 (Dm).
Argyrodes montanus Keyserling, 1884a: 193, pl. 9, f. 115 (Df) [urn:lsid:nmbe.ch:spidersp:055268].
Argyrodes obscurus Exline & Levi, 1962: 115, f. 79-83 (mf, S of Argyrodes montanus).
Neospintharus obscurus Agnarsson, 2004: 479 (T from Argyrodes).

Neospintharus ohiyiaensis Tharmarajan & Benjamin, 2022: 24, f. 8C-D, G-H, K-L, 9F-I, 10B, E-F (Dmf).

Neospintharus parvus Exline, 1950a: 112, f. 2, 4 (Df).
Argyrodes parvus Exline & Levi, 1962: 121, f. 51-55 (f, Dm).
Neospintharus parvus Agnarsson, 2004: 479 (T from Argyrodes).

Argyrodes rioensis Exline & Levi, 1962: 125, f. 61-65 (Dmf).
Neospintharus rioensis Agnarsson, 2004: 479 (T from Argyrodes).

Argyrodes syriaca O. Pickard-Cambridge, 1872: 279, pl. 13, f. 10 (Dmf).
Argyrodes syriaca Levy, 1985a: 103, f. 29-43 (mf).
Argyrodes syriaca Levy, 1998b: 115, f. 208-222 (mf).
Neospintharus syriacus Agnarsson, 2004: 479 (T from Argyrodes).
Neospintharus syriacus Kaya, Yagmur & Kunt, 2009: 89, f. 2-13 (mf).
Argyrodes syriaca Le Peru, 2011: 375, 436, f. 662 (mf habitus).
Neospintharus syriacus Vanuytven, 2023: 89, f. 8 (m).

Argyrodes triangularis Taczanowski, 1873: 123, pl. 5, f. 14 (Dm).
Argyrodes triangularis Keyserling, 1884a: 200, pl. 9, f. 120 (m).
Argyrodes triangularis Exline & Levi, 1962: 126, f. 97-98 (m).
Neospintharus triangularis Agnarsson, 2004: 479 (T from Argyrodes).

Theridion trigonum Hentz, 1850: 280, pl. 9, f. 24-25 (Dmf).
Argyrodes trigonum Emerton, 1882: 23, pl. 5, f. 1 (mf).
Argyrodes argyrodes Keyserling, 1884a: 181, pl. 8, f. 109 (mf; misidentified per F. O. Pickard-Cambridge, 1902a: 404).
Argyrodes trigonum Simon, 1894a: 496, f. 504 (m).
Argyrodes trigonum Emerton, 1902: 124, f. 292-296 (mf).
Argyrodes trigonus F. O. Pickard-Cambridge, 1902a: 404, pl. 38, f. 7-8 (mf, S of Argyrodes bicornis [revalidated by Exline & Levi, 1962: 125, see Neospintharus bicornis]).
Conopistha trigona Kaston, 1948: 88, f. 73-79 (m, removed from S of Linyphia rufa, rejecting Chamberlin & Ivie, 1944: 38 [sub Conopistha]).
Argyrodes trigonum Exline & Levi, 1962: 122, f. 66-78 (mf).
Argyrodes trigonum Breene et al., 1993: 56, f. 21A-C (mf).
Argyrodes trigonum Paquin & Dupérré, 2003: 214, f. 2390-2395 (mf).
Neospintharus trigonum Agnarsson, 2004: 479, f. 56A-G, 57A-F (mf, T from Argyrodes).
Neospintharus trigonum Agnarsson, Coddington & Knoflach, 2007: 354, f. 61 (m).