Biodiversity Data Journal :
Taxonomic Paper
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Corresponding author: Ye-Jie Lin (linyejie15@gmail.com), Xunyou Yan (yanxunyou@163.com)
Academic editor: Yanfeng Tong
Received: 17 Feb 2022 | Accepted: 29 Mar 2022 | Published: 06 Apr 2022
© 2022 Ye-Jie Lin, Haifeng Chen, Xunyou Yan
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-J, Chen H, Yan X (2022) A new species of the spider genus Selenocosmia (Araneae, Theraphosidae) from Fujian, China. Biodiversity Data Journal 10: e82406. https://doi.org/10.3897/BDJ.10.e82406
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The genus Selenocosmia Ausserer, 1871 includes 39 species. Five species were known from China. This genus has not been found in south-eastern China.
A new species of the genus Selenocosmia Ausserer, 1871 is described from China: Selenocosmia zhangzhengi Lin, sp. n. from Fujian. Photos and a morphological description of the new species are given. The type specimen of the new species is deposited in the Institute of Zoology, Chinese Academy of Sciences in Beiing (IZCAS).
The spider family Theraphosidae Thorell, 1869 includes 1031 species in 153 genera, with 39 species in the genus Selenocosmia Ausserer, 1871 (
Five Selenocosmia species were known from China, S. anubis Yu et al., 2021 (Yunnan); S. jiafu Zhu & Zhang, 2008 (Yunnan); S. longiembola Yu et al., 2021 (Yunnan); S. qiani Yu et al., 2021 (Guangdong) and S. xinhuaensis Zhu & Zhang, 2008 (Yunnan). Here, we report one new species: S. zhangzhengi sp. n. from Longyan, Fujian.
All specimens were preserved in 75% ethanol. Spermathecae were cleared in trypsin enzyme solution to dissolve non-chitinous tissues. Specimens were examined under a LEICA M205C stereomicroscope. Photomicroscope images were taken with an Olympus C7070 zoom digital camera (7.1 megapixels). Photographs were stacked with Helicon Focus 6.7.1 and processed in Adobe Photoshop CC 2018.
The terminology used in the text and figures follows
Abbreviations: A apical keel; ALE anterior lateral eyes; AME anterior median eyes; BL basal lobe of retrolateral embolus keel; MOA median ocular area; PLE posterior lateral eyes; PME posterior median eyes; PS prolateral superior keel; The type material is deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing (IZCAS).
Male (holotype, IZCAS-Ar42680) (Fig.
Male palpal bulb (male palp with bulb (Fig.
Female (paratype, IZCAS-Ar42638) (Fig.
Female genitalia (Fig.
Selenocosmia jiafu Zhu & Zhang, 2008: 2♂ (IZCAS), China: Yunnan: Xishuangbanna, Mengla County, Menglun Township,27.IX.2021, Conghao Yang leg.
Female (Paratypes; N2): body length: without chelicerae 20.14–28.62. Carapace 9.82–13.81 length, 7.16–10.08 wide. Chelicerae with row of 10–12 promarginal teeth, 34–36 mesoventral denticles. Labial cuspules 239–299.
Selenocosmia zhangzhengi sp. n. is similar to males of S. jiafu Zhu & Zhang, 2008 and S. qiani Yu, S. Y. Zhang, F. Zhang, Li & Yang, 2021 by having the same angle of the embolus relative to the bulb. However, S. zhangzhengi sp. n. can be separated from S. qiani by the racket-shaped lyra setae on the maxillae (vs. dagger-shaped in S. qiani). Males of S. zhangzhengi sp. n. can be distinguished from S. jiafu by the absence of long, white setae on the tibia and metatarsus of the legs (vs. present in S. jiafu), the tip of the embolus is at an obtuse angle in S. zhangzhengi sp. n. (vs. acute angle in S. qiani) and small ventral lamina are absent on the distal embolus (Figs
The species is named after Mr. Zheng Zhang, who collected the type material; noun (name) in genitive case.
Known only from the type locality.
Retreats in burrows made in soil mixed with gravel, the burrows are usually about 3 to 4 cm in diameter. The spider web extends 10 to 20 cm inwards from the burrow. The spider moults inside. At night, the spider waits at the mouth of the burrow for its prey to pass by.
Zheng Zhang, Chuan Liu, Linrui Yu, Xiaohan Ye, Conghao Yang helped in fieldwork. Sarah Crews checked English. The manuscript benefitted greatly from comments by Danni Sherwood, Mike Skinner and Yanfeng Tong. This work was supported by the National Natural Sciences Foundation of China (NSFC–31970396).