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On the Nazeris Fauna of China II. New Species and Records from Zhejiang, Sichuan, and Yunnan (Coleoptera: Staphylinidae: Paederinae)

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On the Nazeris Fauna of China II. New Species and Records from Zhejiang, Sichuan, and Yunnan (Coleoptera: Staphylinidae: Paederinae) Bonn zoological Bulletin 62 (2): 125 –170 December 2013 On the Nazeris fauna of China II. New species and records from Zhejiang, Sichuan, and Yunnan (Coleoptera: Staphylinidae: Paederinae) Volker Assing Gabelsbergerstr. 2, D-30163 Hannover, Germany; E-mail: [email protected]. Abstract. Material of the Palaearctic paederine genus Nazeris Fauvel, 1873 from the Chinese provinces Zhejiang, Sichuan, and Yunnan is revised. Thirty species are described and illustrated, eight of them from Sichuan and the remainder from Yunnan: Nazeris bilamellatus sp. n. (Sichuan: Emei Shan); N. foveatus sp. n. (Sichuan: Erlang Shan); N. appendiculatus sp. n. (Sichuan: Daxue Shan); N. puetzi sp. n. (Sichuan: Erlang Shan); N. cornutus sp. n. (Sichuan: Erlang Shan); N. tri - furcatus sp. n. (Sichuan: Xiaoxiang Ling); N. wrasei sp. n. (Sichuan: Xiaoxiang Ling); N. schuelkei sp. n. (Sichuan: Laba - he, Daxiang Ling); N. wuliangicus sp. n. (Yunnan: Wuliang Shan and adjacent mountain range); N. nivimontis sp. n. (Yun - nan: Xue Shan N Lincang); N. sagittifer sp. n. (Yunnan: Ailao Shan, Wuliang Shan); N. secatus sp. n. (Yunnan: Laobie Shan); N. cangicus sp. n. (Yunnan: Diancang Shan); N. aculeatus sp. n. (Yunnan: Jizu Shan); N. zhemoicus sp. n. (Yun - nan: Zhemo Shan); N. pungens sp. n. (Yunnan: Xue Shan ENE Lincang); N. lanuginosus sp. n. (Yunnan: Laobie Shan); N. peniculatus sp. n. (Yunnan: mountain range N Er Hai); N. barbatus sp. n. (Yunnan: Wuliang Shan); N. firmilobatus sp. n. (Yunnan: Gaoligong Shan); N. spiculatus sp. n. (Yunnan: mountain range E Luxi); N. curvus sp. n. (Yunnan: Gaoligong Shan); N. infractus sp. n. (Yunnan: Nu Shan); N. subdentatus sp. n. (Yunnan: Gaoligong Shan); N. meilicus sp. n. (Yun - nan: Meili Xue Shan); N. vexillatus sp. n. (Yunnan: Gaoligong Shan); N. circumclusus sp. n. (Yunnan: Gaoligong Shan); N. hastatus sp. n. (Yunnan: Gaoligong Shan); N. bangmaicus sp. n. (Yunnan: Bangma Shan); N. fissus sp. n. (Yunnan: Ailao Shan, Wuliang Shan). Records of 17 additional species are reported. Seven of them are represented exclusively by females and probably undescribed, and the remainder described previously; the latter are from Zhejiang (two species), Sichuan (four species), and Yunnan (four species). The male sexual characters of some of the previously described species are illustrated. Species group affiliations are discussed. The distributions of 37 species are mapped. The genus now in - cludes a total of 171 species and seven subspecies; 94 species have been reported from China (exclusive of Taiwan). Key words. Taxonomy, Staphylinidae, Paederinae, Nazeris , China, Zhejiang, Sichuan, Yunnan, new species, species groups, distribution maps, endemism. INTRODUCTION According to a recent contribution (Assing 2013a), the Henan (1). The sum of species exceeds 64 in this overview paederine genus Nazeris Fauvel, 1873 has an essentially because five species have been reported from more than Palaearctic distribution and previously comprised a total one province or from the border region between two or of 143 species and seven subspecies. As many as 66 three provinces. species had been recorded from China (exclusive of Tai - In all, 15 Nazeris species have been described from Zhe - wan); two of them, however, are synonymous (see below). jiang province (Assing 2013a; Hu et al. 2011a; Ito 1996; All the Nazeris species are flightless and, with one excep - Koch 1939). However, according to a revision of type ma - tion ( N. cultellatus Assing, 2013), the species from Chi - terial by Hu (e-mail 12.7.2013), two of the names made na are locally endemic. In China, Nazeris ranks second available in Hu et al. (2011a) are junior synonyms, so that among the paederine genera with respect to the diversity the Nazeris fauna of Zhejiang currently comprises 13 of micropterous species with restricted distributions, out - species. numbered in described species only by Lathrobium The nine Nazeris species previously known from Gravenhorst, 1802, which is currently represented in Chi - Sichuan were recorded from Wolong (one species), the na by 170 described species, most of them locally endem - Gongga Shan (two species), the Emei Shan (two species), ic (Assing 2013b, c, in press; Peng et al. 2013b). The the Micang Shan (one species), the Erlang Shan (one provinces with the greatest diversity of previously de - species), Labahe (one species), and from the Qingcheng scribed Nazeris species are Zhejiang (13 species), Yun - Shan (one species whose description is based on a single nan (11), and Shaanxi (11), followed by Sichuan (9), female) (Assing 2013a; Hu et al. 2007; Zheng 1992). Re - Guangxi (6), Anhui (4), Gansu (3), Hubei (3), Chongqing garding the type locality of one of these species, N. (3), Jiangxi (2), Fujian (2), Xizang (2), Guizhou (1), and canaliculatus Zheng, the original description (Zheng1992) Received: 21.08.2013 Corresponding editor: D. Ahrens Accepted: 01.10.2013 126 Volker Assing is contradictory. According to the Chinese description, all COlleCTION MATeRIAl DePOSITORIeS the type specimens are from the Emei Shan, whereas ac - cording to the English abstract, the holotype is from Wo - CAS Chinese Academy of Sciences, Beijing long and the two female paratypes are from the Emei Shan. SMNS Staatliches Museum für Naturkunde, Stuttgart Most likely, the type locality given in the abstract is er - (W. Schawaller) roneous. ZFMK Zoologisches Forschungsmuseum Alexander The Nazeris fauna of Yunnan previously comprised Koenig, Bonn eleven species, four from the Gaoligong Shan, two from cAss author´s private collection the Diancang Shan and the Laohu Shan, two from the Na - cPüt private collection Andreas Pütz, Eisenhüttenstadt banhe Nature Reserve, and one each from the Yulongxue cSch private collection Michael Schülke, Berlin Shan, the Jizu Shan, and the Yuan Shan near Kunming (Hu cSme private collection Aleš Smetana, Ottawa et al. 2011b; Watanabe & Xiao 1993, 1997, 2000). Recent studies on the Chinese Lathrobium fauna re - vealed that the diversity in Yunnan (60 described species) ReSUlTS is far greater than that of any other province and that Sichuan (39 described species) ranks second (Assing Diversity and zoogeography 2013b, c; Peng et al. 2013a); among the remaining provinces the Lathrobium fauna of Shaanxi (20 described The revised material is composed of 47 species, ten of species) is the most diverse, but still hosts much fewer them described previously from Zhejiang (two species), species than Yunnan and Sichuan. Since both Lathrobi - Sichuan (four species), and Yunnan (four species). The lo - um and Nazeris have a similar distribution in the East calities where the material was collected are mapped in Palaearctic and are often found in the same habitats, it Fig. 1. Thirty species are newly described, eight from seemed likely that the diversity trends observed for Lath - Sichuan and twenty-two from Yunnan. Seven additional, robium should also apply to Nazeris . probably undescribed species remain unnamed since they The present paper is based primarily on outstanding ma - were represented exclusively by females. Thus, including terial from the collection of Michael Schülke (Berlin), the new species described in this paper, Nazeris compris - most of which was collected by him and David Wrase es a total of 171 species and seven subspecies, with 94 of (Berlin) during nine field trips to China in the past two them recorded from, and confined to, China. In all, 33 decades. Additional material came from the collections of species are now known from Yunnan and 16 from Sichuan, Aleš Smetana (Ottawa) and Andreas Pütz (Eisenhütten - the provinces with the most diverse Nazeris faunas. The stadt). diversity trends previously observed for Lathrobium are indeed paralleled by Nazeris . Except for one species ( N. ruani ), all the species from MATeRIAl AND MeThODS Sichuan and Yunnan are locally endemic and known on - ly from individual or adjacent mountain ranges. The morphological studies were conducted using a Ste - As was observed earlier for the fauna of the Qinling mi SV 11 microscope (Zeiss Germany) and a Jenalab com - Shan and the Daba Shan (Assing 2013a), closely related pound microscope (Carl Zeiss Jena). A digital camera species, particularly hypothesized adelphotaxa, are gen - (Nikon Coolpix 995) was used for the photographs. The erally at the same time geographically close, suggesting maps were created using MapCreator 2.0 (primap) soft - local speciation events. However, identifying phylogenet - ware. ic relationships is significantly more difficult in Nazeris Body length was measured from the anterior margin of than in Lathrobium , particularly because the external and, the mandibles (in resting position) to the abdominal apex, even more importantly, the male sexual characters are less the length of the forebody from the anterior margin of the diverse. Nevertheless, it was possible to assign the ma - mandibles to the posterior margin of the elytra, head length jority of the species to species groups. For details see the from the anterior margin of the frons to the posterior mar - introductions to the regional faunas of Sichuan and Yun - gin of the head, elytral length at the suture from the apex nan below. Species of one species group generally have of the scutellum to the posterior margin of the elytra, and allopatric distributions (exceptions: N. truncatus and N. the length of the aedeagus from the apex of the ventral bilamellatus of the N. truncatus group in the Emei Shan, process to the base of the aedeagal capsule. The “para- and N. puetzi and N. foveatus of the N. hailuogouensis meral” side (i.e., the side where the sperm duct enters) is group in the Erlang Shan), but often two or three species referred to as the ventral, the opposite side as the dorsal of different groups were recorded from the same moun - aspect. tain, not infrequently collected even in the same sample. For a discussion of the terminology of the aedeagal mor - phology see Assing (2009). Bonn zoological Bulletin 62 (2): 125–170 ©ZFMK On the Nazeris fauna of China II 127 Natural history Species from Sichuan As can be inferred from the data specified on the labels Species groups.
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