Article

A new cave-dwelling species of Bisetocreagris Ćurčić (Arachnida, Pseudoscorpiones: Neobisiidae) from Yunnan Province, China

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Abstract

A new pseudoscorpion species, Bisetocreagris xiaoensis Li & Liu, sp. n., is described and illustrated from specimens collected in caves in Yanjin County, Yunnan Province, China. An identification key is provided to all known cave- dwelling representatives of the genus Bisetocreagris in the world.

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... In fact, recent surveys have continuously reported many new species, especially in China (e.g. Gao et al , 2017aGao and Zhang 2011Zhang 2016a,b, 2017;Harvey 2013b;Hu and Zhang 2011, 2012a,b,c,d,e, 2013Li et al 2017;Mahnert and Li 2016;Yang and Zhang 2013;Zhang and Zhang 2014a,b,c). DNA barcoding and molecular phylogenetic analysis have suggested the existence of multiple cryptic and undescribed species, sometimes represented as a short-range endemisms (Harvey 2002), in soil-dwelling and subterranean pseudoscorpions (Cosgrove et al 2016;Harms 2018;Harrison et al 2014;Harvey et al 2016;Neethling and Haddad 2016;Ohira et al 2018). ...
... A total 21 species of pseudoscorpions, including 16 soildwelling species, have been recorded from South Korea (Bang 1984;Choi and Hwang 2009;Hong 1992Hong , 1996Kim 1993, 1996;Hong et al , 1997Kim and Hong 1994;Lee 1981Lee , 1982Lee and Seo 1995;Morikawa 1970; Table 1). The number of species recorded in South Korea is lower than that of neighboring countries: 68 species from Japan, 33 species from Russia, and 98 species from China (Gao and Zhang 2011Gao et al , 2017aGao et al , 2017bGuo and Zhang 2016aHarvey 2013b;Hu and Zhang 2011, 2012a,b,c,d,e, 2013Li et al 2017;Mahnert and Li 2016;Yang and Zhang 2013;Zhang and Zhang 2014a,b,c). The species richness of South Korean pseudoscorpions might be underestimated because of a deficient investigation. ...
Article
Pseudoscorpions are one of the common arthropod in soil mesofauna but are infrequently studied in East Asia. The fauna in South Korea is not adequate enough, and practical faunistic survey of pseudoscorpions have not been conducted in last 20 years. In this article, the current pseudoscorpion fauna in South Korea is reviewed, and the results of the survey in Chungcheongnam-do Province, the DNA barcoding (mitochondrial DNA cytochrome c oxidase I sequencing) and molecular phylogenetic analysis are shown. A total 64 specimens, including four species, Allochthonius (Allochthonius) buanensis, Bisetocreagris japonica, Bisetocreagris turkestanica (first record from South Korea), and Microbisium pygmaeum, were collected. The result of molecular phylogenetic analysis based on the cytochrome c oxidase I sequences (427 bp) implied the existence of a possible cryptic species within A. (A.) buanensis. Faunistic survey and DNA barcoding of South Korean species can greatly contribute to the understanding of East Asian pseudoscorpion systematics. © 2018 National Science Museum of Korea (NSMK) and Korea National Arboretum (KNA)
... Meanwhile they are also the prey of spiders, centipedes and other animals. To date, six cave-dwelling pseudoscorpion species belonging to the families Neobisiidae, Chernetidae and Chthoniidae have been found in Yunnan (Mahnert 2003;Li et al. 2017;Li et al. 2019). ...
... At present, 31 cave-dwelling pseudoscorpion species have been described from China, including the two new species reported in this study. Among them, Neobisiidae accounts for 64.5%, Chthoniidae and Chernetidae account for 22.6% and 12.9% respectively (Mahnert 2003(Mahnert , 2009Mahnert & Li 2016;Gao & Zhang 2017;Gao et al. 2018;Li et al. 2017Li et al. , 2019Feng et al. 2019Feng et al. , 2020. Fewer chthoniids and chernetids are reported probably because they are much smaller and difficult to detect. ...
Article
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Two new species of troglomorphic pseudoscorpions of the family Neobisiidae, collected from karst caves in Yunnan, China, are described: Parobisium laevigatum sp. n. and P. muchonggouense sp. n.. A key to the Parobisium species from China is also provided.
... To date, 33 cave-dwelling pseudoscorpion species, representing three families (Chthoniidae, Neobisiidae, Chernetidae), have been described from China. Among them, eight species are known from Yunnan (Schawaller 1995;Mahnert 2003Mahnert , 2009Mahnert and Li 2016;Gao et al. 2017;Li et al. 2017;Gao et al. 2018;Li et al. 2019;Feng et al. 2020;Gao et al. 2020;Zhang et al. 2020). ...
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Two new cave-adapted pseudoscorpion species belonging to the family Chthoniidae are described: Tyrannochthonius pandus sp. nov. from Biyu Cave (Yunnan: Luxi) and Lagynochthonius laoxueyanensis sp. nov. from Laoxueyan Cave (Yunnan: Yanshan). Both of them, collected from the dark zone of caves, are highly troglomorphic species.
... Until now, there have not been any documented cases of subterranean-adapted pseudoscorpions in northern China, and our knowledge has been limited to 20 troglomorphic pseudoscorpion species (Families Chthoniidae, Neobisiidae and Chernetidae) from southern China (Schawaller 1995;Mahnert 2003Mahnert , 2009Mahnert & Li 2016;Gao et al. 2017;Li et al. 2017;Gao et al. 2018). ...
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Two new troglomorphic pseudoscorpion species, Parobisium magangensis sp. n. and P. yuantongi sp. n., belonging to the family Neobisiidae, are described based on specimens collected in karst caves from Beijing, China. These are the first troglomorphic pseudoscorpions discovered from caves in northern China. Detailed diagnosis, descriptions, and illustrations are provided. We also offer future research and management recommendations for these two new pseudoscorpion species.
... Bisetocreagris live in moist leaf litter, the topsoil layer and caves. At present, the genus Bisetocreagris includes 39 species and subspecies, of which 24 species (13 leaf litter inhabiting and 11 cave-inhabiting species) have been reported from China (Harvey 2013, Mahnert & Li 2016, Guo & Zhang 2017, Gao et al. 2017, Li et al. 2017. ...
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Three new Bisetocreagris species are described from southern China: Bisetocreagris shunhuangensis sp. n. from Hunan Province, B. wangi sp. n. and B. gaoi sp. n. from Guizhou Province. Detailed diagnoses, descriptions and illustrations of the three new species are presented.
Article
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We summarize and discuss the 29 known cave-dwelling pseudoscorpion species from China. Four new troglomorphic pseudoscorpion species, Parobisium motianense sp. nov., P. qiangzhuang sp. nov., P. san- louense sp. nov., and P. tiani sp. nov., belonging to the family Neobisiidae, are described based on speci- mens collected in karst caves in Guizhou, China. Detailed diagnosis, descriptions, and illustrations are presented. We also provide recommendations for management of caves where they occur, as well as the cave arthropod communities and the habitats that support them.
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