Diversity of cave-dwelling pseudoscorpions from Guizhou in China, with the description of twenty-four new species of the genus Tyrannochthonius (Pseudoscorpiones, Chthoniidae)

Hou, Yanmeng; Feng, Zegang; Zhang, Feng

doi:10.11646/zootaxa.5262.1.1

Zootaxa

2023

DOI: 10.11646/zootaxa.5262.1.1

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Diversity of cave-dwelling pseudoscorpions from Guizhou in China, with the description of twenty-four new species of the genus Tyrannochthonius (Pseudoscorpiones, Chthoniidae)

Yanmeng Hou

Zegang Feng

Feng Zhang

Abstract: Twenty-four new Tyrannochthonius species from twenty-eight karst caves of Guizhou are described, including detailed diagnosis and illustrations: T. acutus sp. nov. from Gazuida Cave (Kaili City), T. altus sp. nov. from Shenren Cave (Hezhang County), T. arificus sp. nov. from Hei Cave (Anlong County), T. babaowanensis sp. nov. from Babaowan Cave (Yinjiang County), T. breviculus sp. nov. from Yanjia Cave (Libo County), T. brevispinus sp. nov. from Jingua Cave (Danzhai County), T. duo sp. nov. from Liangfeng Cave… Show more

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Cave-dwelling Neobisiidae in South China Karst, with descriptions of twelve new species of Bisetocreagris (Pseudoscorpiones, Neobisiidae) from Guizhou Province

FENG,

ZHANG,

CHEN

2023

Zootaxa

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Twelve new troglomorphic pseudoscorpion species of the genus Bisetocreagris Ćurčić, 1983 (Family Neobisiidae) are described based on specimens collected from karst caves in Guizhou Province, China: Bisetocreagris ampla sp. nov. from Hei Cave (Zunyi City), B. aspera sp. nov. from Tu Cave (Tongren City), B. brevis sp. nov. from Yehu Cave (Tongren City), B. changbing sp. nov. from Sanyuan Cave and Guanyin Cave (Zunyi City), B. chumi sp. nov. from Tufei Cave (Zunyi City), B. grandis sp. nov. from Wulibeidadong Cave (Bijie City), B. jiangi sp. nov. from Anjialin Cave (Tongren City), B. longidigitata sp. nov. from Mao’er Cave (Guiding County), B. que sp. nov. from Yanggong Cave (Sandu County), B. sanmen sp. nov. from Sanmen Cave (Zunyi City), B. xishui sp. nov. from Dongkoushan Cave (Zunyi City), B. tenuipalma sp. nov. from Sanjie Cave (Zunyi City). Detailed diagnoses, descriptions, and illustrations are provided for all species.

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Cave-dwelling Neobisiidae in South China Karst, with descriptions of twelve new species of Bisetocreagris (Pseudoscorpiones, Neobisiidae) from Guizhou Province

FENG,

ZHANG,

CHEN

2023

Zootaxa

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Contribution to the knowledge of Brazilian troglobitic Pseudoscorpiones (Arachnida): description of Pseudochthonius lubueno sp. nov. (Chthoniidae) from Serra do Ramalho karst area, state of Bahia, Brazil

Assis,

von Schimonsky,

Gallão

et al. 2023

Zoologia (Curitiba)

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Pseudochthonius lubueno sp. nov., a new obligatory cave-dwelling pseudoscorpion species is described from Gruna da Altina cave, the fifth species of the genus in the region of Serra do Ramalho karst area, southwestern Bahia, Brazil. This genus occurs in South and Central America, sub-Saharan central Africa, and in the Arabian Peninsula. The new species can be identified by the following combination of characters: eyes or eyespots absent, coxa I with two and coxa II with 4-5 coxal spines, without microdenticles on the fixed pedipalpal finger, rallum with five blades, ratio ist-est/ist-esb = 1.9. With this new description, the genus now includes 15 species from Brazil:

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Feihu Dong, a New Hotspot Cave of Subterranean Biodiversity from China

Huang,

Zhao,

Luo

et al. 2023

Diversity

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China is a country with abundant karst landscapes, but research on cave biodiversity is still limited. Currently, only Ganxiao Dong, located in Huanjiang, Guangxi, has been reported as a hotspot for cave biodiversity. Many of the world’s most troglomorphic species in the major groups of cave animals have been recently discovered in China, making the existence of many more hotspots in the country likely. Feihu Dong, one of these potential hotspot caves, has been systematically investigated to complement a preliminary species list of 1995, leading to the discovery of 62 species of animals from the cave. Among them, 27 are considered troglobionts or stygobionts, 26 are considered troglophiles or stygophiles, and nine are classified as trogloxenes or stygoxenes. Research on the cave biodiversity of Feihu Dong has demonstrated that it currently holds the highest number of known cave animal species in China. Among the most remarkable features of this fauna is the co-occurrence of five species of cave-obligate beetles, all modified for cave life. The biological survey was limited to a small part of the cave. Several habitats (like guano) have not been investigated so far, and several important cave groups have been insufficiently or not sampled (like Ostracoda). Meanwhile, the system increases in length with each new caving expedition. Further discoveries of cave organisms in Feihu Dong are therefore expected. As Feihu Dong and Ganxiao Dong are the only caves in China that have been extensively studied for a large range of organisms, and as they are located in karstic areas that are similar in richness to other regions of southern China, it can be confidently assumed that several other caves of high biodiversity will be discovered in the coming years.

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Diversity of cave-dwelling pseudoscorpions from Guizhou in China, with the description of twenty-four new species of the genus Tyrannochthonius (Pseudoscorpiones, Chthoniidae)

Cited by 3 publications

References 0 publications

Cave-dwelling Neobisiidae in South China Karst, with descriptions of twelve new species of Bisetocreagris (Pseudoscorpiones, Neobisiidae) from Guizhou Province

Cave-dwelling Neobisiidae in South China Karst, with descriptions of twelve new species of Bisetocreagris (Pseudoscorpiones, Neobisiidae) from Guizhou Province

Contribution to the knowledge of Brazilian troglobitic Pseudoscorpiones (Arachnida): description of Pseudochthonius lubueno sp. nov. (Chthoniidae) from Serra do Ramalho karst area, state of Bahia, Brazil

Feihu Dong, a New Hotspot Cave of Subterranean Biodiversity from China

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