Furtherrevisionofthemesh-webspidergenus TairaLehtinen, 1967 (Amaurobiidae) with the description of six new species Author Zhao, Jing-Xia 0000-0002-4344-0300 Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China. & 1131732591 @ qq. com; https: // orcid. org / 0000 - 0002 - 4344 - 0300 1131732591@qq.com Author Wang, Lu-Yu 0000-0002-5250-3473 Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China. & wangluyu 1989 @ 163. com; https: // orcid. org / 0000 - 0002 - 5250 - 3473 Author Irfan, Muhammad 0000-0003-0445-9612 Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China. & irfanuos 94 @ yahoo. com; https: // orcid. org / 0000 - 0003 - 0445 - 9612 irfanuos94@yahoo.com Author Zhang, Zhi-Sheng Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China. text Zootaxa 2021 2021-08-13 5020 3 457 488 journal article 10.11646/zootaxa.5020.3.3 1175-5326 5223576 A980D114-84DB-4BA5-AF36-AF9CC891650A Taira concava Zhang, Zhu & Song, 2008 Figures 4 , 24 Taira concava Zhang et al ., 2008: 506 , figs 17–21 ( ♂ ♀ ); Zhu et al . 2017: 577 , figs 376A–E ( ♂ ♀ ). Type material: Holotype ♂ (SWUC-T-AM-04-01), 1 ♀ paratype (SWUC-T-AM-04-02), CHINA , Sichuan , Mt. Emei , 29°33.506′N 103°20.830′E , 1811 m , 16.IX.2004 , Z.S. Zhang , examined. Material examined. 4 ♂ and 5 ♀ ( SWUC ), Mt. Emei , Jiulinggang , 13.IV.2018 , Z.S. Zhang , L.Y. Wang and Z.S. Wu . Diagnosis. Males of this species resemble T. sulciformis males by having a groove present on the interior branch of the dorsal tibial apophysis and a similar sclerotized tegular apophysis in the palp ( Figs 4C–E ), and females resemble T. sulciformis females by having oval spermathecae in the epigyne ( Figs 4F, G ). T. concava , however, can be distinguished from T. sulciformis by the following characters: interior branch of the dorsal tibial apophysis narrower in T. concava ( Figs 4C, E ) than in T. sulciformis ; retrolateral tibial apophysis with a blunt end in T. concava , whereas degenerated in T. sulciformis ; median lobe of epigyne wider than long in T. concava ( Fig. 4F ), whereas longer than wide in T. sulciformis . Description. See Zhang et al. (2008) . Habitus, male palp and epigyne ( Fig. 4 ). Distribution. China ( Sichuan ) ( Fig. 24 ).