Taxonomic notes on Chinese Cercyon: description of a new species, new synonyms, and additional faunistic records (Coleoptera: Hydrophilidae: Sphaeridiinae) Author Jia, Feng-Long Author Fikáček, Martin Author Ryndevich, Sergey K. text Zootaxa 2011 3090 41 56 journal article 46052 10.5281/zenodo.279052 9dcb4acc-75b3-4357-ac26-71cc6ddf6585 1175-5326 279052 Cercyon (s. str.) berlovi Shatrovskiy, 1999 ( Figs. 11–17 ) Cercyon (s. str.) berlovi Shatrovskiy, 1999 : 7 Cercyon (s. str.) signifer Hebauer, 2002b : 8 . syn. nov. Type material examined. Cercyon berlovi Paratypes : 1 3 ( ZISP ), “Dol. r. Da-tung [= valley of Datong river], 7000', ½.IX.[1]901, Rob. i. Koz. [= lgt. Roborovskiy & Kozlov] // Paratypus Cercyon berlovi Shatrovskiy ”; 1 3 ( ZISP ), “Dol. ozer. verkhn. Khuan-he [lake valley at the headwaters of Hwang Ho], kon. VI.1900 [end of July 1901 ], Eksp. Kozlova [= Kozlov Expedition] // Paratypus Cercyon berlovi Shatrovskiy ”; 1 ex. “Vodorazd. Golub. i Zhelt. rr., rechka Gorin-chyu, Ok. 14.000' [= watershed of Yangtze and Hwang Ho rivers, river Gorin-chyu, near 14.000'], V.1901 . Eksp. Kozlova [= Kozlov Expedition] // Paratypus Cercyon berlovi Shatrovskiy ”. Cercyon signifer Paratype : 1 3 ( NMPC ), “ China - E. Tibet, Anjuki, 4600-4800 m , 15 km N. of Raog Ravu, 18.6.1997 , leg. A. Wrzecionko”. FIGURES 11–17. Cercyon berlovi Shatrovskiy, 1999 . 11–12: general habitus of the specimens from Gansu (11: dorsal view, 12: ventral view). 13–17: male genitalia of the examined paratype of C. signifer Hebauer, 2002 (13: tegmen, 14: apex of the paramere, 15: median lobe, 16: apex of the median lobe, 17: sternite 9). Additional material examined. CHINA : Gansu: 3 exs., Lazikou pass, 3180 m , 34°13.8'N 103°54.0'E , 29.vi.2005 , leg. J. Hájek, D. Král & J. Růžička ( NMPC , CSR ); 10 exs., Dagcanglhamo (= Langmusi), 3464-3644 m , 34°04.6-05.1'N 102°37.7-38.1'E, 23.-. 25.vi.2005 , leg. J. Hájek, D. Král & J. Růžička ( NMPC , CSR ); 1 ex., Xiahe (= Labrang) env., 2940 m , 35°11.5'N 102°30.6'E , 19.-22.vi.2005 , leg. J. Hájek, D. Král & J. Růžička ( NMPC ). Qinghai: 5 exs., Dulansi, 3245-3840 m , 37°00.7-02.0'N 98°37.4-37.5'E, 6.vii.2005 , leg. J. Hájek, D. Král & J. Růžička ( NMPC ); 14 exs., Gangca Dasi, 3505-3840 m , 37°32.4-33.0'N 100°05.3-06.0'E, 11-12.vii.2005 , lgt. J. Hájek, D. Král & J. Růžička ( NMPC ). Sichuan: 1 ex., Zhangla below Huanglong, 4000 m , 27.vi.1996 , leg. Ebner ( NMPC ); 2 exs., Paumashan Mts., 29.55ʹN 102.02ʹE, 4200-4900 m , leg. J. Farkač & D. Král ( NHMB ); 28 exs., Zheduo Shankou pass, W Kangding, E slope, 3850 m , 29°59'N 101°50'E , 18.vii.1998 , leg. D. Král ( NHMB ). Xizang: 181 exs., Linzhi, Sejilashan Mount, 4100-4200m , 12-16.viii.2009 , leg. Fenglong Jia ( SYSU ). Taxonomic notes. The type specimen of C. signifer corresponds with the type specimens of C. berlovi from Qinghai in all diagnostic characters including the morphology of the male genitalia ( Figs. 13–17 ). We therefore propose C. signifer as a junior subjective synonym of C. berlovi . Distribution. Only known from high altitude areas of China (provinces of Gansu, Qinghai, Sichuan and Xizang) ( Hebauer 2002b , Hebauer & Ryndevich 2005 , this paper). New record for the Gansu province.