Research Article |
Corresponding author: Yong-Hong Xiao ( yonghong.xiao1@mail.cn ) Academic editor: Charles Haddad
© 2022 Ke-Ke Liu, Zi-Min Jiang, Ning Ma, Wen-Hui Li, Yong-Hong Xiao.
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:
Liu K-K, Jiang Z-M, Ma N, Li W-H, Xiao Y-H (2022) Description of two new species of the genus Spinirta Jin & Zhang, 2020 (Araneae, Corinnidae) from southern China. ZooKeys 1136: 57-69. https://doi.org/10.3897/zookeys.1136.94374
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Two new species of Spinirta Jin & Zhang, 2020 (Araneae: Corinnidae) from Jiangxi Province, China are described here: S. sanxiandian sp. nov. (♂♀) and S. sishuishan sp. nov. (♂). Detailed descriptions and photographs of the new species are provided.
Corinnid, distribution, Jiangxi Province, taxonomy
The total number of species in the family Corinnidae Karsch, 1880 has increased greatly in the past ten years (
Spinirta Jin & Zhang, 2020 was erected by
Spinirta spiders inhabit a wide range of habitats varying from tree canopies to the ground or leaf litter layers of the southern provinces of China (
Specimens were examined using a Jiangnan SZ 6100 stereomicroscope with a Zoom Microscope System. Both male palps and female copulatory organs were detached and examined in 80% ethanol, using an Olympus CX43 compound microscope with a KUY NICE CCD camera. All specimens treated in this work are deposited in the Animal Specimen Museum, Life Science of College, Jinggangshan University (ASM-JGSU). Measurements were taken with the AxioVision software (SE64 ver. 4.8.3) and are given in millimetres. Terminology of the male and female copulatory organs follows
Leg measurements are given as total length (femur, patella, tibia, metatarsus, tarsus). The abbreviations used in the text and figures are:
ALE anterior lateral eye;
AME anterior median eye;
At atrium;
CD copulatory duct;
CO copulatory opening;
CS cone-shaped spines;
d dorsal;
E embolus;
EA embolic apophysis;
FD fertilization duct;
GA glandular appendage;
MOA median ocular area;
p prolateral;
PLE posterior lateral eye;
PME posterior median eye;
PTA prolateral tibial apophysis;
r retrolateral;
RTA retrolateral tibial apophysis;
Sp spermatheca;
St subtegulum;
v ventral;
VTA ventral tibial apophysis.
Spinirta jinyunshanensis Jin & Zhang, 2020. Type locality: Chongqing.
The genus includes 11 species, all of which are distributed in southern and southwest of China (WSC 2022). Currently, most of them are known only from females (three species) or males (four species) (WSC 2022). Most of China’s nine species are recorded from southwestern China (
Holotype : 1 ♂, China: Jiangxi Province, Ji’an City, Qingyuan District, Donggu Town, Dawu Mountain, 26°40'48.69"N, 115°25'7.79"E, 1031 m, 25.X.2020, K. Liu et al. leg. (Cor-04). Paratype: 2 ♀, 13.XI.2021, K. Liu et al. leg., other data same as holotype (Cor-03 and Cor-05).
The specific name is derived from the type locality, Sanxiandian Temple in Dawu Mountain; noun in apposition.
The male of this new species is similar to that of Spinirta sparsula Jin & Zhang, 2020 (cf. Fig.
Male. Habitus as in Fig.
Colouration (Fig.
Palp as in Fig.
Spinirta sanxiandian Liu sp. nov., palp of male holotype A prolateral view B ventral view, white arrow shows the lateral apophysis located on anterolateral tegulum C retrolateral view D detail of PTA, dorso-prolateral view E detail of RTA, ventral view F detail of tegulum, white arrow shows the lateral apophysis located on anterolateral tegulum, ventral view G same, retrolateral view. Abbreviations: CS – cone-shaped spines, E – embolus, EA – embolic apophysis, PTA – prolateral tibial apophysis, RTA – retrolateral tibial apophysis, St – subtegulum, VTA – ventral tibial apophysis. Scale bars: 0.2 mm (A–C); 0.1 (D–G).
Female. Habitus as in Fig.
Colouration (Fig.
Epigyne as in Figs
The female specimens of this new species occur exactly in the same sites explored by the authors. They are identified as the same species based on appearance and epigyne. Variability was observed in the epigyne (Fig.
Known only from the type locality, Jiangxi Province, China (Fig.
Holotype : 1 ♂, China: Jiangxi Province, Ganzhou City, Chongyi County, Sishui Mountain, near parking lot, 25°27'11.73"N, 113°55'30.04"E, 965 m, 2.X.2020, K. Liu et al. leg. (Cor-02).
The specific name, derived from the type locality, is a noun in apposition.
The male of this new species can be distinguished from S. sanxiandian sp. nov. by the shield retrolateral tibial apophysis (RTA) (vs. ear-shaped), the anterior part of the tegulum lacking lateral apophysis (vs. present in S. sanxiandian sp. nov.) and the relatively blunt embolic apophysis (EA) in retrolateral view (vs. sharp in S. sanxiandian sp. nov.) (cf. Fig.
Male. Habitus as in Fig.
Colouration (Fig.
Palp as in Fig.
Spinirta sishuishan Liu sp. nov., palp of male holotype A prolateral view B ventral view C retro-ventral view D dorsal view E detail of VTA and RTA, ventral view F same, ventral view, slightly retrolateral G detail of tegulum, ventral view H same, retro-ventral view. Abbreviations: CS – cone-shaped spines, E – embolus, EA – embolic apophysis, PTA – prolateral tibial apophysis, RTA – retrolateral tibial apophysis, St – subtegulum, VTA – ventral tibial apophysis. Scale bars: 0.1 mm.
Female. Unknown.
We thank Yuan-Hao Ying, Meng-Zhen Zhang, Jing Yan, Ming-Hui Fei, Cong-Zheng Li, and Si-Liang Yuan (all from Jinggangshan University) for their assistance during the fieldwork. We also thank Dr Nathalie Yonow for improving the English of the manuscript. Two reviewers Dr Robert Raven and one anonym, the copy editor Christopher Glasby and the subject editor Charles Haddad made valuable comments on a previous draft of this manuscript. This study was supported by the Natural Science Foundation of China (32000301/32160243), the Science and Technology Foundation of Jiangxi Provincial Department of Education (GJJ211017), and PhD Research Startup Foundation of Jinggangshan University (JZB2010).