Taira wanzhouensis, Zhao & Wang & Irfan & Zhang, 2021

Zhao, Jing-Xia, Wang, Lu-Yu, Irfan, Muhammad & Zhang, Zhi-Sheng, 2021, Furtherrevisionofthemesh-webspidergenus TairaLehtinen, 1967 (Amaurobiidae) with the description of six new species, Zootaxa 5020 (3), pp. 457-488 : 475

Taira wanzhouensis sp. nov.

Figures 18 , 19 , 24

Type material. Holotype ♂ (SWUC-T-AM-15-01), CHINA: Chongqing: Wanzhou District, Lishu Township, Wangerbao Nature Reserve , 30°39.463′N 108°43.863′E, 1224 m, 17.III.2018, Z.S. Zhang, L.Y. Wang and Z.S. Wu . Paratypes (2 ♂ and 4 ♀): 1 ♀ (SWUC-T-AM-15-02), with same data as holotype ; 1 ♀ (SWUC-T-AM-15- 03), Wangerbao Nature Reserve , 15.III.2013, X.K. Jiang and X.W. Meng ; 2 ♂ and 2 ♀ (SWUC-T-AM-15-04~07), Wangerbao Nature Reserve , 15.III.2013, X.K. Jiang and X.W. Meng .

Etymology. The specific name is derived from the type locality, adjective in apposition.

Diagnosis. This new species can be differentiated from all other species of genus Taira by the set of following characteristics: tip of exterior branch of dorsal tibial apophysis curved in T. wanzhouensis sp. nov. ( Figs 18E , 19E ); semicircular median lobe of epigyne and spermathecae situated dorso-posteriorly.

Description. Male. Total length 7.46–8.81. Holotype ( Fig. 19A ) total length 8.81. Carapace 4.58 long, 3.17 wide; opisthosoma 4.06 long, 3.03 wide. Eye size and interdistances: AME 0.21, ALE 0.24, PME 0.21, PLE 0.22; AME–AME 0.07, AME–ALE 0.12, PME–PME 0.20, PME–PLE 0.28, ALE–PLE 0.07. MOA 0.70 long, front width 0.45, base width 0.59. Clypeus height 0.26. Chelicerae with 4 promarginal and 3 retromarginal teeth. Leg measurements: I 22.76 (6.13, 8.04, 6.09, 2.53); II 16.89 (5.04, 5.58, 4.03, 2.24); III 13.35 (4.41, 4.46, 3.42, 1.06); IV 17.13 (5.00, 5.61, 4.45, 2.07).

Male palp ( Figs 18C–E , 19C–E ). Retrolateral tibial apophysis absent. Interior branch of dorsal tibial apophysis margin arc-shaped, without groove, and a small process located near the dorsal tibial apophysis in prolateral view. Tip of the exterior branch of dorsal tibial apophysis curved. Embolus with a slightly curly tip. Median apophysis with an acute tip, slightly incurved. Tegulum with 2 processes.

Female. Total length 9.18–9.79. Paratype ( Fig. 19B ) total length 9.79. Carapace 4.86 long, 3.27 wide; opisthosoma 4.81 long, 3.85 wide. Eye size and interdistances: AME 0.20, ALE 0.23, PME 0.20, PLE 0.22; AME–AME 0.12, AME–ALE 0.23, PME–PME 0.26, PME–PLE 0.42, ALE–PLE 0.12. MOA 0.70 long, front width 0.53, base width 0.69. Clypeus height 0.31. Leg measurements: I 14.87 (4.35, 5.11, 3.02, 2.39); II 12.15 (3.71, 4.14, 2.58, 1.72); III 10.58 (3.37, 3.49, 2.23, 1.49); IV 12.77 (3.84, 4.66, 2.80, 1.47).

Epigyne ( Figs 18A, B , 19F, G ) median lobe round, a pair of epigynal teeth situated ventro-laterally, not covering median lobe. Copulatory ducts wide, slightly curved, present anteriorly. Spermathecae globular. Fertilization ducts slender.

Distribution. Known only from the type locality, Wanzhou, Chongqing ( Fig. 24 ).

Figures

FIGURE 18. Taira wanzhouensis sp. nov. Holotype male (C–E), paratype female (A–B). A. Epigyne, ventral view; B. Same, dorsal view. C. Left male palp, prolateral view; D. Same, ventral view; E. Same, retrolateral view; Abbreviations: eDTA, exterior branch of dorsal tibial apophysis; Em, embolus; CD, copulatory duct; Co, conductor; ET, epigynal teeth; FD, fertilization duct; iDTA, interior branch of dorsal tibial apophysis; MA, median apophysis; ML, median lobe; RTA, retrolateral tibial apophysis; Sp, spermathecae; TA, tegular apophysis.

FIGURE 19. Taira wanzhouensis sp. nov. Holotype male (A, C–E), paratype female (B, F–G).A. Male habitus, dorsal view; B. Female habitus, dorsal view; C. Left male palp, prolateral view; D. Same, ventral view; E. Same, retrolateral view; F. Epigyne, ventral view; G. Same, dorsal view.

FIGURE 24. Distribution records of the Taira flavidorsalis-group. Red dots represent new species, green dots represent previously described species. 1 T. borneoensis sp. nov. 2 T. cangshan 3 T. concava 4 T. decorata 5 T. flavidorsalis 6 T. gyaisiensis sp. nov. 7 T. latilabiata 8 T. liboensis 9 T. nyagqukaensis sp. nov. 10 T. obtusa 11 T. sulciformis 12 T. wanzhouensis sp. nov. 13 T. xuanenensis sp. nov. 14 T. yangi sp. nov.