In synonymy:
Thianella Schenkel, 1963 = Tasa Wesołowska, 1981 (Wesołowska, 1981b: 157, preoccupied, replacement name)

type Thianella davidi Schenkel, 1963; gender feminine

N.B.: replacement name for Thianella Schenkel, 1963: 411 [urn:lsid:nmbe.ch:spidergen:05452], preoccupied in Salticidae by Strand, 1907.

In synonymy:
Tasa nipponica Bohdanowicz & Prószyński, 1987 = Tasa koreana (Wesołowska, 1981) (Suguro & Yahata, 2014: 94).

Thianella davidi Schenkel, 1963: 412, f. 237a-e (Dm).
Tasa davidi Wesołowska, 1981b: 157, f. 88-92 (m).
Tasa davidi Peng et al., 1993: 230, f. 819-823 (m).
Tasa davidi Song, Zhu & Chen, 1999: 561, f. 319L-M, 330B (m).
Tasa davidi Peng, Gong & Kim, 2000: 15, f. 15-18 (Df).
Tasa davidi Yin et al., 2012: 1486, f. 810a-g (mf).
Tasa davidi Peng, 2020: 466, f. 342a-g (mf).

Pseudicius koreanus Wesołowska, 1981a: 60, f. 52-55 (Df).
Icius koreanus Yaginuma, 1986a: 233, f. 130.1 (f, T from Pseudicius).
Icius koreanus Bohdanowicz & Prószyński, 1987: 67, f. 72-73 (f; m f. 67-71 see Okinawicius tokaraensis; returned to Pseudicius by Prószyński in a "notice" distributed together with the paper).
Tasa nipponica Bohdanowicz & Prószyński, 1987: 143, f. 300-303 (Dm) [urn:lsid:nmbe.ch:spidersp:036473].
Tasa nipponica Chen & Zhang, 1991: 318, f. 339 (m).
Tasa nipponica Seo, 1992b: 183, f. 13-16 (m).
Tasa nipponica Ikeda, 1995c: 163, f. 15-20 (m).
Tasa nipponica Song, Zhu & Chen, 1999: 561, f. 319N-O (m).
Tasa nipponica Namkung, 2002: 590, f. 43.34a-b (m).
Tasa nipponica Cho & Kim, 2002: 136, f. 89, 198-199 (m).
Tasa nipponica Namkung, 2003: 594, f. 43.34a-b (m).
Pseudicius koreanus Ono, Ikeda & Kono, 2009: 570, f. 106 (f, m f. 104-105 see Okinawicius tokaraensis).
Tasa nipponica Ono, Ikeda & Kono, 2009: 574, f. 149-153 (m).
Tasa koreana Suguro & Yahata, 2014: 94, f. 12-15, 25-30 (mf, S of Tasa nipponica; m misidentified and S rejected per Prószyński, 2016: 4; S confirmed by Jin et al., 2022: 3).
Tasa nipponica Kim & Lee, 2014: 143, f. 102A-C (m).
Tasa nipponica Prószyński, 2016: 4 (removed from S of Tasa koreana, rejecting Suguro & Yahata, 2014: 94; S confirmed by Jin et al., 2022: 3).
Nepalicius koreanus Prószyński, 2016: 22, f. 7C-D (mf, T from Tasa).
Nepalicius koreanus Prószyński, 2017b: 42, f. 19E (f).
Tasa nipponica Prószyński, 2017b: 31, f. 13L (m).
Tasa nipponica Peng, 2020: 468, f. 343a-b (m).
Tasa koreanus Jin et al., 2022: 3, f. 1A-D, 2A-D, 3A-E, 4A-F (mf, T from Nepalicius, S of Tasa nipponica confirmed, rejecting Prószyński, 2016: 4; mostly spelled koreanus, sometimes koreana).
Nepalicius koreanus Zhang, Peng & Zhang, 2022: 344, f. 262A-G (mf).