New cavernicolous ground beetles from Anhui Province, China (Coleoptera, Carabidae, Trechini, Platynini).
ABSTRACT: A new genus and three new species of cave-adapted ground beetles are reported from the limestone cave Shenxian Dong in Huangshan Shi, southeastern Anhui Province, China. Shenoblemus gen. nov. is proposed to place the anophthalmic trechine species S. minusculus sp. nov. This genus is characterized by the tiny but stout body, sub-moniliform antennae, serrated elytral margins near the base, and a wide distance between the fifth and sixth pores of the marginal umbilicate series on the elytra. In addition, two new species, Wanoblemus huangshanicus sp. nov. (an anophthalmic trechine) and Jujiroa inexpectata sp. nov. (a microphthalmic platynine), are also described and illustrated from the same cave.
Project description:Two new genera and four new species of cave-adapted ground beetles are described from Sichuan Province, southwestern China. <i>Uenoaphaenops</i> <b>gen. nov.</b> is established to place the trechine species <i>Qianotrechus fani</i> Uéno, 2003 occurring in the limestone cave Hua'er Dong, southeastern Sichuan (Luzhou: Gulin). <i>Chu pheggomisetoides</i> <b>gen. nov. & sp. nov.</b>, from the limestone cave Hanwang Dong, northeastern Sichuan (Guangyuan: Chaotian), is somewhat like the European cavernicolous trechine genus <i>Pheggomisetes</i> Knirsch, 1923, from Bulgaria and Serbia, in particular in the configurations of head and pronotum. <i>Boreaphaenops liyuani</i> <b>sp. nov.</b>, also from Hanwang Dong, is the second representative of the genus and the first record in Sichuan. <i>Agonotrechus sinotroglophilus</i> Deuve, 1999, a troglophile, is reported from Sichuan for the first time. The other two new species belong to the platynine genus <i>Jujiroa</i> Uéno, 1952: <i>J. uenoi</i> <b>sp. nov.</b> from the cave Banche Dong on the northern side of the Dadu River (Leshan: Shawan) and <i>J. wangzheni</i> <b>sp. nov.</b> from the cave Hua'er Dong, which is sympatric with <i>Uenoaphaenops fani</i> (Uéno, 2003) <b>comb. nov.</b> A distribution map for the localities of all abovementioned caves and a key to <i>Jujiroa</i> species known in Sichuan are provided.
Project description:A new subgenus and new species of anophthalmic trechine beetles, Oodinotrechus (Pingleotrechus) yinae subgen. n., sp. n., is described and illustrated from a limestone cave called Chaotianyan in southern part of Guilin karst, northeastern Guangxi Zhuang Autonomous Region. The new taxon is very different from the Maolan-Mulun congeners belonging to the nominate subgenus Oodinotrechus (s. str.) Uéno, 1998, in several important character states including pronotal structure, elytral chaetotaxy and male genitalia. It is the first record of a cavernicolous trechine beetle in Guilin karst, and in the eastern part of Guangxi. In addition, a distribution map for the genus Oodinotrechus Uéno, 1998, is provided.
Project description: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).
Project description:Three new species and one subspecies of the genus Amynthas are described from Guangxi Zhuang Autonomous Region, China: The new species are: Amynthas maximus Qiu & Dong, sp. nov. and Amynthas tortuosus Qiu & Dong, sp. nov., and Amynthas shengtangmontis Dong & Jiang, sp. nov., the subspecies is Amynthas shengtangmontis minusculus subsp. nov. All have four pairs of spermathecal pores in 5/6-8/9, which indicates that they should belong to the corticis-group. Their morphological characteristics are compared to other similar species in the corticis-group from China and other Asian countries, such as Amynthas pulvinus Sun & Jiang, 2013, Amynthas homosetus (Chen, 1938), Amynthas corticis (Kinberg, 1867), Amynthas dorsualis Sun & Qiu, 2013, and Amynthas carnosus (Goto & Hatai, 1899). In addition, the results presented are confirmed by the pairwise comparison of COI barcode sequences. The pairwise distances between each new species and the other eighteen corticis-group species are greater than 14.7% on average. Furthermore, the pairwise distance between A. shengtangmontis shengtangmontis and A. shengtangmontis minusculus is 10.7-11.4%.
Project description:Beronaphaenopsgen. n.paphlagonicussp. n., a new remarkable, eyeless species of Trechini is described from Asian Turkey (type locality: cave E?ek Çukuru Ma?aras? 2, Milli Park Küre Da?lari, Pinarbasi District, Kastamonu Province). This specialized, troglobite species is characterized by a very peculiar combination of features, including several autapotypic features: mentum tooth large, long and porrect, at distal position reaching or slightly exceeding the level of epilobes, rather slanting ventrally, deeply bifid at the tip; short and fragile paraglossae, hardly surpassing the anterior margin of ligula; absence of posterolateral setae of the pronotum; absence of posterior discal pore in elytral stria 3; apical stylomere shortened, with basal part unusually broadened. The systematic position of the genus amongst the trechine beetles from the peri-Pontic area is discussed. A key to the Anatolian genera of the tribe is prepared.
Project description:Species of the spider family Leptonetidae Simon, 1890 from China are revised based on molecular and morphological data analyses. A new genus, Jingneta Wang & Li gen. nov., is erected, with Leptoneta cornea Tong & Li, 2008 as the type species. Twenty-two Chinese species previously assigned to the genus Leptoneta Simon, 1872 are revised, with eight transferred to Falcileptoneta Komatsu, 1970, seven transferred to Jingneta gen. nov., five transferred to Leptonetela Kratochvíl, 1978, and one species each transferred to Longileptoneta Seo, 2015 and Masirana Kishida, 1942. Eight new species are described: i.e., Falcileptoneta shuanglong Wang & Li sp. nov. (?), Jingneta caoxian Wang & Li sp. nov. (??), J. jingdong Wang & Li sp. nov. (??), Longileptoneta gutan Wang & Li sp. nov. (??), L. huangshan Wang & Li sp. nov. (??), L. shenxian Wang & Li sp. nov. (??), L. yeren Wang & Li sp. nov. (?), and L. zhuxian Wang & Li sp. nov. (??). In total, 127 leptonetid species from six genera are documented from China: nine species of Falcileptoneta, nine species of Jingneta gen. nov., 101 species of Leptonetela, six species of Longileptoneta, one species of Masirana, and one species of Rhyssoleptoneta Tong & Li, 2007.
Project description:Xuedytes bellus Tian & Huang, gen. et sp. n. is described from a limestone cave in Du'an Karst of Guangxi, a kingdom of cavernicolous trechine beetles in southern China. From a morphological point of view, Xuedytes Tian & Huang, gen. n. seems to be the most extremely cave-adapted trechines in the world. Superficially, it looks much like Giraffaphaenops Deuve, 2002 in general body shape, in particular the structure of the prothorax, but simultaneously it is similar to Dongodytes (s. str.) Deuve, 1993, based on elytral characters, including chaetotaxy. Hence the new genus seems to represent a lineage intermediate between Giraffaphaenops and Dongodytes (s. str.).
Project description:Two new species of anophthalmic ground beetles belonging to the subfamily Trechinae are described: Cimmeritodes (Zhecimmerites) parvus Tian & Li, <b>sp. n.</b> and <i>Wanoblemus wui</i> Tian & Fang, <b>gen. n., sp. n.</b> Both were discovered in the limestone caves of Anhui Province in eastern China. Cimmeritodes (Zhecimmerites) parvus was found in caves Ziwei Dong, Xianren Dong and Qingtai Dong, whereas <i>Wanoblemus wui</i> was discovered in cave Baiyun Dong. This is the first record of cavernicolous ground beetles in Anhui Province, eastern China.
Project description:The subterranean ground beetle genus <i>Guiaphaenops</i> Deuve, 2002 is taxonomically reviewed. This poorly known genus is different from <i>Guizhaphaenops</i> Vigna Taglianti, 1997 in having convex propleura which is visible from above and elytral chaetotaxy especially the humeral group of the marginal umbilicate series, in which the 1<sup>st</sup> pore is transversely and backwardly shifted. The second species, <i>G. deuvei</i> Tian, Feng & Wei, <b>sp. n.</b>, is described from a limestone cave at Yangli Cun (Village), Lingyun Xian (County), Baise Shi (Prefecture), northwestern Guangxi Zhuang Autonomous Region, China. A key to the species and a distribution map of <i>Guiaphaenops</i> are also provided.
Project description:Alpha taxonomy, and specifically the delimitation of species, is becoming increasingly objective and integrative. The use of coalescent-based methods applied to genetic data is providing new tools for the discovery and delimitation of species. Here, we use an integrative approach via a combination of discovery-based multivariate morphological analyses to detect potential new species. These potential species are then used as a priori species in hypothesis-driven validation analyses with genetic data. This research focuses on the harvestmen genus Sclerobunus found throughout the mountainous regions of western North America. Based on our analyses, we conduct a revision of Sclerobunus resulting in synonymy of Cyptobunus with Sclerobunus including transfer of S. cavicolens comb. nov. and elevation of both subspecies of S. ungulatus: S. ungulatus comb. nov. and S. madhousensis comb. nov., stat. nov. The three subspecies of S. robustus are elevated, S. robustus, S. glorietus stat. nov., and S. idahoensis stat. nov. Additionally, five new species of Sclerobunus are described from New Mexico and Colorado, including S. jemez sp. nov., S. klomax sp. nov., S. skywalkeri sp. nov., S. speoventus sp. nov., and S. steinmanni sp. nov. Several of the newly described species are single-cave endemics, and our findings suggest that further exploration of western North American cave habitats will likely yield additional new species.