Five new species of Macrothele Ausserer, 1871 from China (Araneae, Macrothelidae) Author Lin, Yejie https://orcid.org/0000-0002-6789-2731 Hebei Key Laboratory of Animal Diversity, College of Life Science, Langfang Normal University, Langfang 065000, China Author Yan, Xunyou Hebei Key Laboratory of Animal Diversity, College of Life Science, Langfang Normal University, Langfang 065000, China Author Li, Shuqiang https://orcid.org/0000-0002-3290-5416 Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China lisq@ioz.ac.cn Author Ballarin, Francesco https://orcid.org/0000-0003-1417-2519 Systematic Zoology Laboratory, Department of Biological Sciences, Tokyo Metropolitan University, 1 - 1 Minami-Osawa, 192 - 0397, Tokyo, Japan Author Chen, Haifeng https://orcid.org/0000-0001-5838-3700 Hebei Key Laboratory of Animal Diversity, College of Life Science, Langfang Normal University, Langfang 065000, China chenhaifeng@lfnu.edu.cn text ZooKeys 2021 2021-07-30 1052 1 23 http://dx.doi.org/10.3897/zookeys.1052.68623 journal article http://dx.doi.org/10.3897/zookeys.1052.68623 1313-2970-1052-1 71054A9DA5AA4B60A871391BFB0F0EB6 561A859F93615B63A1A2897EAA85CDF5 Macrothele emei Lin & Li sp. nov. Figures 2 , 3 , 13A , 14A , 16 Type material. Holotype : 1♂ (IZCAS-Ar41850) China, Sichuan Province, Mount Emei, Shengshuige to Huayan Temple, 29.5697°N , 103.4100°E , elevation ca 830 m, 29.IX.2016, Zhe Zhao & Xiaoqing Zhang leg. Paratypes : 1♂3♀ (IZCAS-Ar41851-Ar41854), same data as holotype; 1♀ (IZCAS-Ar41855), China, Sichuan Province, Mount Emei, east of Dapingshanzhuang, Yuanhong Cave, 29.5688°N , 103.4089°E , elevation ca 850 m, 29.IX.2016, Zhe Zhao & Xiaoqing Zhang leg.; 1♂1♀ (IZCAS-Ar41856-Ar41857), China, Sichuan Province, Mount Emei, Zhongfeng Old Temple to Shengshuige, 29.5701°N , 103.4029°E , elevation ca 790 m, 28.IX.2016, Zhe Zhao & Xiaoqing Zhang leg. Etymology. The specific epithet refers to the type locality; noun in apposition. Diagnosis. Males of Macrothele emei sp. nov. resemble those of M. digitata Chen, Jiang & Yang, 2020 and M. palpator Pocock, 1901 in having the conical spines dorsally on palpal tibia and the embolus of the same shape. Females of the new species resemble M. palpator by the G-shaped receptacula with long copulatory ducts. Males of M. emei sp. nov. can be distinguished from M. digitata and M. palpator by the presence of seven short spines visible in dorsal view on the distal third of the palpal tibia in dorsal view (vs 13-15 long spines in M. digitata and in M. palpator ). Females of M. emei sp. nov. can be differentiated from M. palpator by the ratio of the length of the copulatory ducts after the second turn almost 1:2 and the second turn expanded (vs length ratio of the copulatory duct folds 1:3, second fold unexpanded in M. palpator ). Description. Male (holotype) (Figs 2 , 3B, C ): Total length 21.53, carapace 8.52 long, 6.93 wide; opisthosoma 12.51 long, 5.52 wide. Carapace dark brown, covered with short setae. Fovea deep, round. AER slightly procurved, PER recurved. Eye sizes and interdistances: AME 0.25, ALE 0.36, PME 0.28, PLE 0.27; AME-AME 0.13, ALE-AME 0.09, ALE-PLE 0.11, PLE-PME 0.08, PME-PME 0.27. Cheliceral promargin with 15 stout teeth, basomesally with 20 denticles. Labium brown, with ca 124 cuspules; sternum chestnut, with three pairs of sigillae. Legs dark brown. Leg measurements: I 19.75 (6.52 + 7.01 + 5.13 + 3.10), II 22.88 (6.02 + 7.11 + 5.24 + 4.51), III 23.55 (6.51 + 7.92 + 5.01 + 4.11), IV 30.21 (8.11 + 9.10 + 8.00 + 5.00). Leg formula: 4321. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 2.22 long, 0.51 wide, PMS-PMS 1.60; PLS three segments. PLS 12.28 long (3.66, 3.38, 3.54). Tip of PLS white. Figure 2. Macrothele emei sp. nov., left palp, holotype A prolateral view B retrolateral view C bulb apophysis. Black arrows pointing to the conical spines; black arrow to inset pointing to the close up of rough-textured apophysis. Figure 3. Macrothele emei sp. nov., female genitalia, male holotype and female paratype A female genitalia, ventral view B male habitus, dorsal view C male habitus, ventral view D female habitus, dorsal view E female habitus, ventral view. Abbreviations: CD copulatory ducts, T terminus of receptacula. Male palp (Figs 2 , 13A , 14A ). Maxillae with ca 153 cuspules. Palpal trochanter without lyral spines. Bulb nearly globose, with a ventral apophysis with a rough texture; embolus flat, slightly curved, needle-shaped, and expanded basally. Female (Fig. 3A, D, E ): total length 22.40, carapace 9.54 long, 8.82 wide; opisthosoma 11.31 long, 6.07 wide. Eye sizes and interdistances: AME 0.20, ALE 0.39, PME 0.29, PLE 0.36; AME-AME 0.08, ALE-AME 0.12, ALE-PLE 0.08, PME-PME 0.62, PLE-PME 0.07. Cheliceral promargin with 14 stout teeth, basomesally with 21 denticles. Endites brown, labium with ca 118 cuspules. Palpal trochanter without lyral spines. Leg measurements: I 19.76 (5.42 + 6.71 + 4.63 + 3.12), II 20.04 (6.20 + 7.10 + 3.74 + 3.00), III 21.26 (6.10 + 6.92 + 5.03 + 3.21), IV 25.37 (7.11 + 8.21 + 6.13 + 3.92). Leg formula: 4321. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 2.53 long, 0.71 wide, PMS-PMS 2.25; PLS three segments. PLS 12.28 long (3.83, 3.72, 4.73). Female genitalia (Fig. 3A ) simple, with two turns. Receptacula directed anteriorly, turning laterally, then dorsally, finally medially; somewhat G-shaped. The length ratio of the duct after the lateral turn to the dorsal turn is 2:1. Variations. Male total length 14.21-21.53 ( n = 3), female total length 13.52-22.40 ( n = 5). Distribution. China (Sichuan).