Taira concava Zhang et al ., 2008: 506 Zhu et al . 2017: 577 Furtherrevisionofthemesh-webspidergenus TairaLehtinen, 1967 (Amaurobiidae) with the description of six new species Zhao, Jing-Xia Wang, Lu-Yu Irfan, Muhammad Zhang, Zhi-Sheng Zootaxa 2021 2021-08-13 5020 3 457 488 7BHSJ Zhang, Zhu & Song, 2008 Zhang, Zhu & Song 2008 [151,652,1652,1678] Arachnida Amaurobiidae Taira Animalia Araneae 3 460 Arthropoda species concava   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. Wangand Z.S. Wu.   Diagnosis.Males of this species resemble  T. sulciformismales 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. sulciformisfemales by having oval spermathecae in the epigyne ( Figs 4F, G).  T. concava, however, can be distinguished from  T. sulciformisby 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). 2004-09-16 Z. S. Zhang China 1811 29.558434 Mt. Emei 1 103.34717 3 460 2 1 1 Sichuan holotype 2018-04-13 SWUC Z. S. Zhang & L. Y. Wang & Z. S. Wu Mt. Emei Jiulinggang 3 460 9 5 4