Ceruchus sinensis Nagel 1933
Creators: name: Huang, Hao
name: Imura, Yûki
name: Chen, Chang-Chin
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lucanidae
Ceruchus
Ceruchus sinensis

description: 5. Ceruchus sinensis Nagel, 1933
(Figs. 16, 35, 36, 50, 61, 62, 67, 194–209, 223, 232, 234, 238, 239, 272)
Specimens examined. CHINA: Yunnan Province: 23 (CYI), North Baoshan, 3370m, 9.V.2006, I. Belousov & I. Kabak leg.; 13 & 1Ƥ (CCCC), Nujiang, Lushui County, Yaojiaping, 2600m, 25.VII.2010, X.-D. Yang leg. (33 & 1Ƥ dissected).
Identification. Boucher & Kral (1997) used the following male characters, based on the holotype and an additional male: 1) dorsal tooth in lateral view with anterior margin more concave than posterior margin; 2) ventral tooth in lateral view visible; 3) anterior margin of the mentum not protruding medially; 4) yellow setae on posterior half of the mesofemur sparse; 5) yellow setae on inner apex of the mesotibia short, narrowly distributed, dense and forming a thin brush; 6) caudal end of the penis protruding slightly beyond the parameres in natural shape; 7) central split on caudal margin of the basal piece of the aedeagus in ventral view minute, with two sides flat and not protruding posteriorly; 8) penis in ventral view relatively wide and not swollen in middle; 9) dorsal surface of the penis in lateral view slightly incurved, without wings along the margins. All these male characters can be used as the basis for identification of Ceruchus sinensis. All three males from Baoshan and Lushui examined share all these characters.
The females of this species were firstly reported by Okuda (2007) from Myanmar but not fully described. One female specimen was collected alongside a male of Ceruchus sinensis in the same rotten wood by X.-D. Yang at Yaojiaping, central Gaoligongshan, Yunnan, so these two specimens are assumed to be of the same species. The female characters are fully described by the authors in the table 2. It should be noted that the stylus of the female genitalia illustrated by Okuda (2007 & 2008) as Ceruchus sinensis may actually be of another species, whereas that of Ceruchus chuduraziensis illustrated by Okuda (2007) may be of Ceruchus sinensis. The female specimens of Ceruchus sinensis and Ceruchus chuduraziensis from northern Myanmar should be re-examined in the future.
Taxonomic notes. This species is rather equally different from all other Chinese species in morphological distance.
Distribution (Fig. 293). This species was originally described from “Mt. Francis Gardner, west of Mekong”, now referring to the Taizi-xueshan on west of the Lancang River at the border between Yunnan and Tibet. A further male was examined by Boucher & Kral (1997) from Myanmar. Okuda (2007) reported this species in good numbers from Chudurazi, northeastern Myanmar. The latest literature report of this little known species was that of Imura (2007) from Baoshan, near Nujiang, West Yunnan. In addition, one pair of specimens was examined from Yaojiaping, central Gaoligongshan, on west of the Nujiang (Salween).
description: Published as part of Huang, Hao, Imura, Yûki & Chen, Chang-Chin, 2011, Notes on the genus Ceruchus MacLeay from China, with the description of a new species (Coleoptera: Scarabaeoidea: Lucanidae), pp. 1-42 in Zootaxa 2906 on page 9, DOI: 10.5281/zenodo.277719