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      Contributions to the knowledge of subterranean trechine beetles in southern China’s karsts: five new genera (Insecta, Coleoptera, Carabidae, Trechinae)

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          Abstract

          Abstract

          Recent discoveries reveal that southern China’s karsts hold the most diverse and morphologically modified subterranean trechine beetles in the world, albeit the first troglobitic blind beetle was only reported in the early 1990’s. In total, 110 species belonging to 43 genera of cavernicolous trechines have hitherto been recorded from the karsts of southern China, including the following five new genera proposed below: Shiqianaphaenops Tian, gen. n., to contain two species: Shiqianaphaenops majusculus (Uéno, 1999) (= Shenaphaenops majusculus Uéno, 1999, comb. n.), the type species from Cave Feng Dong, Shiqian, Guizhou, and Shiqianaphaenops cursor (Uéno, 1999) (= Shenaphaenops cursor Uéno, 1999, comb. n.), from Cave Shenxian Dong, Shiqian, Guizhou; and the monotypic Dianotrechus Tian, gen. n. (the type species: Dianotrechus gueorguievi Tian, sp. n., from Cave Dashi Dong, Kunming, Yunnan), Tianeotrechus Tian & Tang, gen. n. (the type species: Tianeotrechus trisetosus Tian & Tang, sp. n., from Cave Bahao Dong, Tian’e County, Guangxi), Huoyanodytes Tian & Huang, gen. n. (the type species: Huoyanodytes tujiaphilus Tian & Huang, sp. n., from Longshan, Hunan) and Wanhuaphaenops Tian & Wang, gen. n. (the type species: Wanhuaphaenops zhangi Tian & Wang, sp. n., from Cave Songjia Dong, Chenzhou, Hunan).

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          Du’an Karst of Guangxi: a kingdom of the cavernicolous genus Dongodytes Deuve (Coleoptera, Carabidae, Trechinae)

          Abstract Recent cave biodiversity surveys carried out in Du’an County and its adjacent areas of northwestern Guangxi, China, have revealed some exciting scientific findings. In a very limited area seven new species of the cavernicolous trechine genus Dongodytes Deuve, 1993 were found and are described: Dongodytes (s. str.) elongatus sp. n., Dongodytes (s. str.) troglodytes sp. n., Dongodytes (s. str.) lani sp. n., Dongodytes (Dongodytodes) brevipenis sp. n., Dongodytes (Dongodytodes) jinzhuensis sp. n., Dongodytes (Dongodytodes) inexpectatus sp. n. and Dongodytes (Dongodytodes) yaophilus sp. n. Diagnoses and notes on the genus, subgenera, and two known species in Du’an Karst, Dongodytes (s. str.) baxian Tian, 2011 and Dongodytes (Dongodytodes) deharvengi Tian, 2011, are also given. A key to subgenera and all species of Dongodytes is provided. To date, Dongodytes becomes one of the richest in species genera of subterranean carabid trechines in China with 12 species which are arranged into two subgenera. Dongodytes (s. str.) Deuve is composed of seven species, four of which from Du’an County, each of other three from Bama, Fengshan and Tian’e Counties, respectively. All species of the subgenus Dongodytodes Tian, 2011 are recorded from Du’an Karst. By having 10 species (nine Dongodytes and one Libotrechus Uéno, 1998), Du’an Karst holds the richest specific diversity of cavernicolous Trechinae in China. Dongodytes species are distributed in a very limited area of the river Hongshui He drainages in northwestern Guangxi, and the river acts as a natural barrier of Dongodytes dispersal at only a specific level. However, all members of Dongodytodes are recorded from the eastern or northern bank of Hongshui He.
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            A new species of the highly modified hypogean genus Giraffaphaenops Deuve, 2002 (Coleoptera: Carabidae: Trechinae) .

            Giraffaphaenops yangi n. sp. is described from a limestone cave named Shizikou Dadong, Tianlin County, northwestern Guangxi, China. It is the second species of this genus, which is the most morphologically modified in the tribe Trechini in terms of troglobiomorphy. So far, Giraffaphaenops ranges in a small karstic area in northwestern Guangxi. Of the two known species, G. clarkei Deuve, 2002 was recorded from four caves in Leye County, whereas G. yangi n. sp. is known from the only type locality cave in Tianlin County. A distributional map of the genus Giraffaphaenops is also provided. In addition, two females of G. clarkei are recorded from the cave Yanwu Dong, Leye County. 
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              Two new cavernicolous genera and species of Trechinae from Hunan Province China (Coleoptera Carabidae)

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                Author and article information

                Journal
                Zookeys
                Zookeys
                ZooKeys
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2016
                16 February 2016
                : 564
                : 121-156
                Affiliations
                [1 ]Department of Entomology, College of Agriculture, South China Agricultural University, No. 483 Wushan Road, Guangzhou, 510642, China
                Author notes
                Corresponding author: Mingyi Tian ( mytian@ 123456scau.edu.cn )

                Academic editor: A. Casale

                Article
                10.3897/zookeys.564.6819
                4820093
                27081334
                Mingyi Tian, Sunbin Huang, Xinhui Wang, Mingruo Tang

                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.

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                Research Article

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