type Phrurolithus pennatus Yaginuma, 1967; gender masculine

In synonymy:
Pennalithus liaoningensis (Song, Zhu, Gao & Guan, 1994) = Pennalithus palgongensis (Seo, 1988) (Namkung, 2002: 419, sub Phrurolithus).
Pennalithus pennatoides (Seo, 2018, T from Phrurolithus) = Pennalithus splendidus (Song & Zheng, 1992) (Kamura, 2021b: 122).

Pennalithus liaoning Mu & Zhang, 2023b: 74, f. 58A-B, 59A-D, 60A-C (Dm).

Pennalithus micous Mu & Zhang, 2023b: 76, f. 61A-B, 62A-D, 63A-C (Dm; specific epithet is stated to be an adjective derived from the Latin verb mico/micare, the correct adjective is micans).
Pennalithus micans Mu & Zhang, 2023b: 599 (correction of specific epithet).

Phrurolithus palgongensis Seo, 1988a: 83, f. 27-32 (Df).
Phrurolithus palgongensis Paik, 1991a: 180, f. 39-46 (f).
Phrurolithus liaoningensis Song et al., 1994: 169, f. 1-5 (Dmf) [urn:lsid:nmbe.ch:spidersp:024325].
Phrurolithus pargongensis Danilov, 1999: 316, f. 3D (f).
Phrurolithus liaoningensis Song, Zhu & Chen, 1999: 411, f. 239M-N, 240M-N (mf).
Phrurolithus palgongensis Kim & Choi, 2001: 87, f. 59-66 (f).
Phrurolithus palgongensis Namkung, 2002: 419, f. 33.8a-c (mf, S of Phrurolithus liaoningensis).
Phrurolithus palgongensis Namkung, 2003: 457, f. 35.8a-c (mf).
Phrurolithus palgongensis Kim & Lee, 2014: 49, f. 35A-C (mf).
Otacilia palgongensis Zamani & Marusik, 2020b: 312 (T from Phrurolithus).
Pennalithus palgongensis Kamura, 2021b: 125 (T from Otacilia).
Pennalithus palgongensis Mu & Zhang, 2023b: 78, f. 64A-B, 65A-B, 66A-B (f).

Phrurolithus pennatus Yaginuma, 1967b: 102, f. 3i-k (Dmf).
Phrurolithus pennatus Paik, 1970b: 88, f. 20-21 (f).
Phrurolithus pennatus Yamakawa & Kumada, 1979: 12, f. 9-10 (mf).
Phrurolithus pennatus Yaginuma, 1986a: 185, f. 102.3 (mf).
Phrurolithus pennatus Seo, 1988a: 79, f. 1-11 (mf).
Phrurolithus pennatus Chikuni, 1989b: 127, f. 23 (mf).
Phrurolithus pennatus Paik, 1991a: 181, f. 47-57 (mf).
Phrurolithus pennatus Danilov, 1999: 317, f. 3E-F, 4A (mf).
Phrurolithus pennatus Song, Zhu & Chen, 1999: 411, f. 230O-P (f).
Phrurolithus pennatus Kim & Choi, 2001: 89, f. 77-87 (mf).
Phrurolithus pennatus Namkung, 2002: 418, f. 33.7a-b (mf).
Phrurolithus pennatus Namkung, 2003: 456, f. 35.7a-b (mf).
Phrurolithus pennatus Kamura, 2009: 553, f. 42-45 (mf).
Phrurolithus pennatus Yin et al., 2012: 1078, f. 566a-g (mf).
Phrurolithus pennatus Kim & Lee, 2014: 50, f. 36A-D, pl. 7 (mf).
Otacilia pennata Zamani & Marusik, 2020b: 312 (T from Phrurolithus).
Pennalithus pennatus Kamura, 2021b: 119, f. 1E, 3A-G, 4A-B, 6A-C, 7C (mf, T from Otacilia).

Phrurolithus pennatus Tu & Zhu, 1986: 93, f. 24-28 (mf; misidentified per Suguro, Baba & Yamauchi, 2018: 19).
Phrurolithus pennatus Chen & Zhang, 1991: 256, f. 269.1-5 (mf; misidentified per Suguro, Baba & Yamauchi, 2018: 19).
Phrurolithus splendidus Song & Zheng, 1992b: 103, f. 1-9 (Dmf).
Phrurolithus splendidus Song, Zhu & Chen, 1999: 412, f. 240C-D, 241C-D (mf).
Phrurolithus splendidus Zhu & Zhang, 2011: 377, f. 271A-G (mf).
Phrurolithus splendidus Suguro, Baba & Yamauchi, 2018: 19, f. 1-6 (mf).
Phrurolithus pennatoides Seo, 2018: 287, f. 20A-H (Dmf) [urn:lsid:nmbe.ch:spidersp:052114].
Phrurolithus splendidus Fu, 2018: 102, f. 19-1.A-G, pl. 21 (mf).
Otacilia splendida Zamani & Marusik, 2020b: 312 (T from Phrurolithus).
Pennalithus splendidus Kamura, 2021b: 122, f. 3H-K, 4C-D, 6D-E (mf, T from Otacilia, S of Phrurolithus pennatoides).
Pennalithus splendidus Zhang, Peng & Zhang, 2022: 203, f. 148A-G (mf).

Pennalithus suguroi Kamura, 2021b: 122, f. 4E-F, 6F (Df).