University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Center for Systematic Entomology, Gainesville, Insecta Mundi Florida 2016 Two new species of stag beetles (Coleoptera: Lucanidae) from western Yunnan, China Hao Huang 503, Unit 1, #1 Dongtinghu Road, [email protected] Chang-Chin Chen Technical Center, Tianjin New Wei San Industrial Company, Ltd., [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/insectamundi Part of the Ecology and Evolutionary Biology Commons, and the Entomology Commons Huang, Hao and Chen, Chang-Chin, "Two new species of stag beetles (Coleoptera: Lucanidae) from western Yunnan, China" (2016). Insecta Mundi. 1017. http://digitalcommons.unl.edu/insectamundi/1017 This Article is brought to you for free and open access by the Center for Systematic Entomology, Gainesville, Florida at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Insecta Mundi by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. INSECTA MUNDI A Journal of World Insect Systematics 0516 Two new species of stag beetles (Coleoptera: Lucanidae) from western Yunnan, China Hao Huang 503, Unit 1, #1 Dongtinghu Road Qingdao, P.R. China Chang-Chin Chen Technical Center, Tianjin New Wei San Industrial Company, Ltd. Tianjin, P.R. China Date of Issue: November 25, 2016 CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FL Hao Huang and Chang-Chin Chen Two new species of stag beetles (Coleoptera: Lucanidae) from western Yunnan, China Insecta Mundi 0516: 1–8 ZooBank Registered: urn:lsid:zoobank.org:pub:E3C26FE7-3C83-4D74-9F50-E0FFEB91035F Published in 2016 by Center for Systematic Entomology, Inc. P. O. 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Archived digitally by Portico. Florida Virtual Campus: http://purl.fcla.edu/fcla/insectamundi University of Nebraska-Lincoln, Digital Commons: http://digitalcommons.unl.edu/insectamundi/ Goethe-Universität, Frankfurt am Main: http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hebis:30:3-135240 Copyright held by the author(s). This is an open access article distributed under the terms of the Creative Com- mons, Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. http://creativecommons.org/ licenses/by-nc/3.0/ Layout Editor for this article: Eugenio H. Nearns 0516: 1–8 2016 Two new species of stag beetles (Coleoptera: Lucanidae) from western Yunnan, China Hao Huang 503, Unit 1, #1 Dongtinghu Road Qingdao, P.R. China [email protected] Chang-Chin Chen Technical Center, Tianjin New Wei San Industrial Company, Ltd. Tianjin, P.R. China [email protected] Abstract. Himaloaesalus gaoligongshanus Huang and Chen, new species (Coleoptera: Lucanidae: Aesalinae) is described from the Gaoligongshan Mts., Yunnan, China. It is the fi fth species of the genus Himaloaesalus Huang and Chen. This new species is similar to the Himalayan species Himaloaesalus himalayicus Kurosawa and H. saburoi Araya et al., from which it is distinguished. The male and female genitalia of all the known species of Hi- maloaesalus are illustrated. Dorcus yongreni Huang and Chen, new species (Coleoptera: Lucanidae: Lucaninae) is described from Ruili area, Yunnan, China. It belongs to the elegans group (Huang and Chen 2013). This new species is similar to the Indian species Dorcus apatani (Okuda and Maeda), new combination, originally described in Digonophorus Waterhouse. The male genitalia of both species are compared and illustrated. Introduction When preparing our third volume of “Stag Beetles of China”, some new discoveries were made, mainly by our friend, Mr. X.-D. Yang from western Yunnan, China. Two new species are described herein whilst the others will be included in our upcoming book in the next year. One of the here-described new species belongs to the recently erected genus Himaloaesalus Huang and Chen (Coleoptera: Lucanidae: Aesalinae), which consists of four known species (Kurosawa 1985, Araya et al. 1998, Araya and Yoshi- tomi 2003, Huang et al. 2009, Huang and Chen 2013). We have collected specimens of both sexes of all known species and compared their male and female genitalia. Another of the here-described new species belongs to the elegans group (Coleoptera: Lucanidae: Lucaninae) and is similar to a recently described Indian species (Okuda and Maeda 2015). We have dissected a topotypic male specimen of this Indian species for a detailed comparison with our new species. According to the morphological phylo- genetic analysis done by Huang and Chen (2013), the genus Digonophorus Waterhouse is a synonym of Dorcus MacLeay, so Digonophorus apatani Okuda and Maeda should be named as Dorcus apatani new combination. Materials and methods Specimens of Aesalini were collected from decayed logs in the fi eld as adults. Specimens of Dorcus were collected by a light trap at night. Specimens of adults were killed with ethyl acetate and dried. For Aesalini, we measured the pronotum-elytra length instead of body length because the dorsal surfaces of head, pronotum, and elytra in this tribe are not in a straight line and are often variable in length when the adult is alive. To examine the male and female genitalia, the last two abdominal segments were removed and treated with a 10% solution of potassium hydroxide and then preserved in 70% ethanol. Photographs were taken with an Olympus C-5050 camera mounted on Olympus SZX12 stereoscope. Terminology follows Holloway (1997, 1998), Huang et al. (2011) and Huang and Chen (2013). The type specimens are deposited in the following public and private collections: BMNH – Natural History Museum, London, United Kingdom CCCC – Chang-Chin Chen collection, Tianjin, China CHH – Hao Huang collection, Shanghai, China SHNU – Entomological Collection of Shanghai Normal University, China 2 • INSECTA MUNDI 0516, November 2016 HUANG AND CHEN Taxonomic Treatment Himaloaesalus gaoligongshanus Huang and Chen, new species (Fig. 1–21) Type material. Holotype (Fig. 1–3, 9–11, 15–20): YUNNAN: ♂, Tengchong County, on road between Tengchong and Baoshan, Nankang Pass, ca. 2000m, 4.V.2012, Xiao-Dong Yang leg. (SHNU). Paratypes: YUNNAN: 1 ♂, 3 ♀♀, same data as for the holotype (1 ♀ in CHH, 1 ♂, 2 ♀♀ in CCCC); 3 ♂♂, Tengchong County, Zizhi Township, ca. 1800m, V.2014, Z. Peng leg. (all in CHH); 3 ♂♂, 3 ♀♀, Gongshan County, Dulongjiang, Xianghong village, VII.2015, X.-D. Yang leg. (1 ♂ in BMNH, 2 ♂♂, 3 ♀♀ in CCCC). Holotype description. Length of pronotum-elytra measured from apex of pronotum to the caudal end of elytra: 6.5 mm. Ground color of the whole body on both surfaces dark reddish brown. Bristles on dorsal surface of the body dark brown. Bristles on ventral surface of the body bright yellow. Head. Width approximately half as wide as pronotum. Interocular width about 4 times as wide as eye. Anterior portion of head in front of eye nearly as long as eye. Intermandibular projection rounded, not angled. Canthus present and slightly projecting beyond eye. Left mandible with a subapical dorsal tooth and a subapical ventral tooth. Right mandible with a subapical dorsal tooth but without