Research Article |
Corresponding author: Shuqiang Li ( lisq@ioz.ac.cn ) Corresponding author: Haifeng Chen ( chenhaifeng@lfnu.edu.cn ) Academic editor: Chris Hamilton
© 2021 Yejie Lin, Xunyou Yan, Shuqiang Li, Francesco Ballarin, Haifeng Chen.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Lin Y, Yan X, Li S, Ballarin F, Chen H (2021) Five new species of Macrothele Ausserer, 1871 from China (Araneae, Macrothelidae). ZooKeys 1052: 1-23. https://doi.org/10.3897/zookeys.1052.68623
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Five new species of the genus Macrothele Ausserer, 1871 are described from China: Macrothele emei Lin & Li, sp. nov. (♂♀, Sichuan), M. hanfeii Lin & Li, sp. nov. (♂♀, Hainan), M. hungae Lin & Li, sp. nov. (♂♀, Taiwan), M. limenghuai Lin & Li, sp. nov. (♂♀, Sichuan), and M. nanning Lin & Li, sp. nov. (♂♀, Guangxi). Types of the new species are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China.
Asia, cryptic species, mygalomorphae, taxonomy
The spider family Macrothelidae Simon, 1892 includes 40 species in one genus, Macrothele Ausserer, 1871 (
All specimens were preserved in 75% ethanol at Institute of Zoology, Chinese Academy of Sciences (
All measurements are in millimeters. Total size does not include chelicerae. Eye sizes were measured as the maximum diameter from either the dorsal or frontal view. Leg measurements are given as follows: total length (femur, patella+tibia, metatarsus, tarsus). Abbreviations: AER, anterior eye row; ALE, anterior lateral eyes; AME, anterior median eyes; CD, copulatory ducts; PER, posterior eye row; PLE, posterior lateral eyes; PLS, posterior lateral spinnerets; PME, posterior median eyes; PMS, posterior median spinnerets; T, terminus of receptacula.
Mygale calpeiana Walckenaer, 1805
Holotype
: 1♂ (
The specific epithet refers to the type locality; noun in apposition.
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).
Male (holotype) (Figs
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
Female (Fig.
Female genitalia
(Fig.
Male total length 14.21–21.53 (n = 3), female total length 13.52–22.40 (n = 5).
China (Sichuan).
Holotype
: 1♂ (
The species epithet refers to Mr Hanfei Gao who helped with this research; noun (name) in genitive case.
Male of Macrothele hanfeii sp. nov. resemble those of M. holsti Pocock, 1901 and M. multispine Wang, Li & Yang, 2019 by having similar bulb shape. Females of M. hanfeii sp. nov. resemble the aforementioned species by the apically globose receptacula that bend inwards. Male of M. hanfeii sp. nov. can be distinguished from M. holsti and M. multispine in that the palpal tibia bear seven blunt spines in prolateral view and nine in dorsal view that extend onto the patella and a large spine present in the center of the area with blunt spines (vs 14 blunt spines in prolateral view and 13 in dorsal view in M. holsti, and three blunt spines in prolateral view and one in dorsal view in M. multispine; large spine absent in M. holsti and M. multispine, and in M. multispine, the blunt spines are absent on the patella). Females differ from those of M. holsti and M. multispine by the short, robust copulatory ducts and the receptacula apically teardrop shaped (vs copulatory ducts long and thin and receptacula apically oval in M. holsti and M. multispine).
Male (holotype) (Figs
Male palp
(Figs
Female (Figs
Macrothele hanfeii 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.
Female genitalia
(Fig.
Female total length 17.20–22.52 (n = 4).
China (Hainan).
Macrothele gigas Haupt, 2008: 20, fig. 4B (♀, misidentified).
Holotype
: 1♂ (
Macrothele gigas Shimojana & Haupt, 1998: 3♂, Japan, Ishigaki Island, Yarabudake, 24.4405°N, 124.0874°E, 10.IV.2019, Sibagarasu Kurosaki leg.; 3♀, same data as male but 8.IX.2019.
The specific epithet is dedicated to Ms Hung Hsiu-chu, the first elected chairwoman of the Kuomintang in Taiwan, China; noun (name) in genitive case.
Macrothele hungae sp. nov. resembles M. gigas (Figs
Male (holotype) (Figs
Male palp
(Figs
Female (Fig.
Macrothele hungae 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. Black arrow pointing to the width of the terminus. Abbreviations: CD copulatory ducts, T terminus of receptacula.
Female genitalia
(Fig.
Female total length 40.81–51.40 (n = 3).
China (Taiwan).
Holotype
: 1♂ (
The species epithet is for Mr Menghua Li who collected the paratype; noun (name) in genitive case.
Males of Macrothele limenghuai sp. nov. resemble those of M. monocirculata Xu & Yin, 2000 and M. raveni Zhu, Li & Song, 2000 by having similar palpal bulb morphology, but they can be distinguished by having five tibial spines visible in prolateral view, the embolus as long as the tibia, and the base of the embolus with a depression (vs tibia with four spines in M. monocirculata or three spines in M. raveni visible in prolateral view, embolus notably longer than tibia and without basal depression). Females of Macrothele limenghuai sp. nov. resemble those of M. monocirculata and M. raveni by the receptacula coiling almost 360°, but they can be differentiated by the copulatory ducts bending outward medially (120°) (vs copulatory ducts straight in M. monocirculata and bent 90° in M. raveni).
Male (holotype) (Figs
Male palp
(Figs
Female (Fig.
Macrothele limenghuai sp. nov., female genitalia, male holotype, and female paratypes 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.
Female genitalia
(Fig.
Male total length 28.13–32.62 (n = 2).
China (Sichuan).
Holotype
: 1♂ (
The species epithet refers to the type locality; noun in apposition.
Males of Macrothele nanning sp. nov. resemble M. multispine by having blunt spines in lateral and dorsal views of palpal tibia and similar palpal bulb morphology, and females of the new species are similar to others by the apically globose receptacula bent inwards apically. Male of M. nanning sp. nov. can be distinguished from M. multispine by having the tibia with eight blunt spines in prolateral view and seven in dorsal view, the blunt spines extending onto patella (vs three blunt spines in prolateral view and one in dorsal view and blunt spines absent from patella). Females can be differentiated from M. multispine by the short, robust copulatory ducts and receptacula expanded basally (vs copulatory ducts long and narrow and receptacula base unexpanded).
Male (holotype) (Figs
Male palp
(Figs
Female (Fig.
Macrothele nanning sp. nov., female genitalia, male holotype, and female paratypes 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.
Female genitalia
(Fig.
Female total length 12.43–17.08 (n = 5).
China (Guangxi).
Distribution records of Macrothele species in East Asia 1 M. yani 2 M. arcuata 3 M. jingzhao 4 M. yunlingensis 5 M. undata 6 M. cangshanensis 7 M. yongshengensis 8 M. jinlin 9 M. bannaensis 10 M. yunnanica 11 M. menglunensis 12 M. multispine 13 M. limenghuai sp. nov. 14 M. emei sp. nov. 15 M. sanheensis 16 M. decemnotata 17 M. proserpina 18 M. monocirculata 19 M. raveni 20 M. guizhouensis 21 M. digitata 22 M. nanning sp. nov. 23 M. hanfeii sp. nov. 24 M. hunanica 25 M. hungae sp. nov. 26 M. holsti 27 M. palpator 28 M. taiwanensis 29 M. simplicata 30 M. yaginumai 31 M. gigas.
The manuscript benefitted greatly from comments by Chris Hamilton (Moscow, USA), Marshal Hedin (San Diego, USA), Danni Sherwood (UK) and Bastian Drolshagen (Karlsruhe, Germany). Sarah Crews checked the English. Menghua Li, Qianlu Le, Zhigang Chen, Zhe Zhao, Xiaoqing Zhang, Yunchun Li, Kun Yu, Hanfei Gao, Shuyuan Zhang, Yunhu Mo, Jiaxiang Wu, Quanyu Ji, and Han Gao helped in fieldwork. Miyata Rio, Chengbin Wang, and Kun Yu assisted with imaging.