Abstract
Two new species of Cercyon Leach, 1817 are described from China: Cercyon (s.str.) bellus sp. nov. from Hebei, Hubei, and Jiangxi Provinces, and Cercyon (s.str.) biltoni sp. nov. from Sichuan. Five species are recorded from China for the first time: Cercyon (Acycreon) punctiger Knisch, 1921, Cercyon (Paracercyon) analis Seidlitz, 1888, Cercyon (s.str.) algarum Sharp, 1973, Cercyon (s.str.) borealis Baranowski, 1985, Cercyon (s.str.) tristis (Illiger, 1801). Additional faunistic data from China are provided for Cercyon (s.str.) alinae Ryndevich, 2004, Cercyon (s.str.) inquinatus Wollaston, 1854, Cercyon (s.str.) kabaki Ryndevich, 2004, Cercyon (s.str.) olibrus Sharp, 1874, Cercyon (s.str.) ovillus Motschulsky, 1860, Cercyon (Clinocercyon) incretus dʼOrchymont, 1941, Cercyon (Clinocercyon) hanseni Jia, Fikáček & Ryndevich, 2011 and Cercyon (Paracercyon) honorabilis Shatrovskiy, 1999. A checklist to all species of the genus known from China is provided.
References
Arriaga-Varela, E., Seidel, M. & Fikáček, M. (2018) A new genus of coprophagous water scavenger beetle from Africa (Coleoptera, Hydrophilidae, Sphaeridiinae, Megasternini) with a discussion on the Cercyon subgenus Acycreon. African Invertebrates, 59 (1), 1–23.
https://doi.org/10.3897/AfrInvertebr.59.14621
Fikáček, M. (2006) Taxonomic status of Cercyon alpinus, C. exorabilis, C. strandi and C. tatricus and notes on their biology (Coleoptera: Hydrophilidae: Sphaeridiinae). Annalen des Naturhistorischen Museums in Wien, 107 B (2005), 145–164. [2005]
Fikáček, M., Angus, R.B., Gentili, E., Jia, F., Minoshima, Y.N., Prokin, A., Przewoźny, M. & Ryndevich, S.K. (2015) Family Hydrophilidae. In: Löbl, I. & Löbl, D. (Eds.), Catalogue Palaearctic Coleoptera. Vol. 2/1. Hydrophiloidea—Staphylinoidea. Revised and updated edition. Koninklijke Brill NV, Leiden/Boston, pp. 37–76.
Hansen, M. (1987) The Hydrophiloidea (Coleoptera) of Fennoscandia and Denmark. Fauna Entomologica Scandinavica, 18, 1–254.
Hansen, M. (1999) World Catalogue of Insects 2: Hydrophiloidea (s.str.) (Coleoptera). Apollo Books, Stenstrup, 416 pp.
Hansen, M. (2004) Family Hydrophilidae. In: Löbl, I. & Smetana, A. (Eds.), Catalogue Palaearctic Coleoptera. Vol. 2. Hydrophiloidea—Histeroidea—Staphylinoidea. Apollo Books, Stenstrup, pp. 44–68.
Hebauer, F. (2002) New Hydrophilidae of the Old World (Coleoptera: Hydrophilidae). Acta Coleopterologica, 18 (3), 3–24.
Hebauer, F. (2003) Review of the Malgassic Cercyon, with description of new species and a new genus. (Coleoptera: Hydrophilidae). Acta Coleopterologica, 19 (2), 5–26.
Jia, F.-L. (2002) Two new record species of genus Cercyon (Coleoptera: Hydrophilidae: Sphaeridiinae) from China and a new synonymy of Cercyon marinus Thomson. Entomotaxonomia, 24 (1), 76–78.
Jia, F.-L. (2010) Two species of hydrophilid beetles (Coleoptera: Hydrophilidae) new to China. Entomotaxonomia, 32 (1), 33–35.
Jia, F.-L., Wu, W. & Pu, Z.-L. (1995) Studies on Cercyon of China (Coleoptera: Hydrophilidae). Journal of Sun Yatsen Univiversity, Supplement, 2, 124–130. [in Chinese, with English abstract]
Jia, F.-L., Fikáček, M. & Ryndevich, S.K. (2011) Taxonomic notes on Chinese Cercyon: description of a new species, new synonyms, and additional faunistic records (Coleoptera: Hydrophilidae: Sphaeridiinae). Zootaxa, 3090, 41–56
dʼOrchymont, A. (1914) H. Sauter's Formosa-Ausbeute: Hydrophilidae (Col.) II. Entomologische Mitteilungen, 3, 322–328.
dʼOrchymont, A. (1935) Aquatic Insects of China. Article XX. Catalogue of Chinese Palpicornia. (Order Coleoptera). Peking natural History Bulletin, 9, 185–225.
Ryndevich, S.K. (2004a) Two new species of Cercyon Leach, 1817 from China (Coleoptera: Hydrophilidae). Genus, 15 (1), 59–63.
Ryndevich, S.K. (2004b) Review of species of the genus Cercyon Leach, 1817 of Russia and adjacent regions. I. Subgenus Cercyon (s.str.) Leach, 1817. Cercyon lateralis – group (Coleoptera: Hydrophilidae). Annales Universitatis Mariae Curie-Sklodowska, Section C, 59, 1–13.
Ryndevich, S.K. (2006a) Review of species of the genus Cercyon Leach, 1817 of Russia and adjacent regions. II. Subgenus Cercyon Leach, 1817. Cercyon olibrus and C. rotundulus groups (Coleoptera: Hydrophilidae). Zoosystematica Rossica, 15 (2), 311–314.
Ryndevich, S.K. (2006b) Review of species of genus Cercyon Leach, 1817 of Russia and adjacent regions. III. Subgenera Clinocercyon Orchymont, 1942 and Conocercyon Hebauer, 2003 (Coleoptera: Hydrophilidae). Zoosystematica Rossica, 15 (2), 315–320.
Ryndevich, S.K. (2007) A new species of Cercyon from India (Coleoptera: Hydrophilidae). Zoosystematica Rossica, 15 (2), 309–310.
Ryndevich, S.K. (2008) Review of species of the genus Cercyon Leach, 1817 of Russia and adjacent regions. IV. The subgenera Paracycreon Orchymont, 1924 and Dicytocercyon Ganglbauer, 1904 (Coleoptera: Hydrophilidae). Zoosystematica Rossica, 17 (2), 89–97.
Ryndevich, S.K. (2013) The zoogeographical structure of the hydrophiloid (Coleoptera: Hydrophiloidea) subtaiga zone of the Palearctic. In: Prokin, A.A. (Ed.), Hydroentomology in Russia and contiguous countries. Materials of the fifth All-Russian Symposium on Amphibiotic and aquatic Insects. I.D. Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences, Borok. Filigran, Yaroslavl, pp. 145–156. [in Russian]
Ryndevich, S.K. (2014) Hydrophiloid fauna (Coleoptera: Hydrophiloidea) of Palaearctic subtaiga zone BarSU Herald. Series of Biological Sciences (General Biology), Agricultural sciences, Agronomy, 2, 19–35. [in Russian]
Ryndevich, S.K. (2017) New faunistic records of hydrophilid beetles (Coleoptera: Hydrophiloidea: Hydrophilidae) from Eurasia. BarSU Herald. Series of biological sciences (general biology), agricultural sciences (agronomy), 5, 65–70.
Ryndevich, S.K. & Hebauer, F. (2010) Review of species of the genus Cercyon Leach, 1817 of Russia and adjacent regions. V. Subgenus Cercyon (s.str.) Leach, 1817. Cercyon nigriceps– group (Coleoptera: Hydrophilidae). Zoosystematica Rossica, 19 (2), 330–340.
Ryndevich, S.K., Jia, F.-L. & Fikáček, M. (2017) A review of the Asian species of the Cercyon unipunctatus group (Coleoptera: Hydrophilidae: Sphaeridiinae). Acta Entomologica Musei Nationalis Pragae, 57 (2), 535–576.
https://doi.org/10.1515/aemnp-2017-0089
Ryndevich, S.K. & Proki, A.A. (2017) Two new species of Cercyon (Clinocercyon) from Russian Far East (Coleoptera: Hydrophilidae). Zootaxa, 4300 (1), 125–134.
https://doi.org/10.11646/zootaxa.4300.1.7
Short, A.E.Z. & Fikáček, M. (2011) World catalogue of the Hydrophiloidea (Coleoptera): additions and corrections II (2006–2010). Acta Entomologica Musei Nationalis Pragae, 51 (1), 83–122.
Short, A.E.Z. & Hebauer, F. (2006) World Catalogue of Hydrophiloidea—Additions and Corrections, 1. (1999–2005) (Coleoptera). Koleopterologische Rundschau, 76, 315–395.
Wu, C.F. [Hu, Jingfu] (1937) Catalogus insectorum sinensium (Catalogue of Chinese insects). Vol. III. The Fan Memorial Institute of Biology, Peiping (Beijing), 26 pp. [pp. 271–296]