Katalog vodních brouků České republiky (Coleoptera: Sphaeriusidae, Gyrinidae, Haliplidae, Noteridae, Hygrobiidae, Dytiscidae, Helophoridae, Georissidae, Hydrochidae, Spercheidae, Hydrophilidae, Hydraenidae, Scirtidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae)

Abstract: This catalogue summarizes the present knowledge on the distribution of 18 families of water beetles in the Czech Republic (CZ). The initial chapters provide a brief introduction into the history of research on water beetles in CZ and basic information on the collecting techniques, rearing and preservation of specimens, ecological characteristics based on habitat preferences, bioindicator groups, and conservation of water beetles in CZ. Chapters on individual families include their brief characteristics, a check-list, and comments on all species. For each species, the comment includes its distribution overall and in CZ, brief ecological characteristics, and conservation status in CZ. Detailed faunistic data are provided only for selected rare species. At present, 401 species of the water beetle families covered in this catalogue are known from CZ: one species of the Sphaeriusidae, 11 species of the Gyrinidae, 18 species of the Haliplidae, one species of the Hygrobiidae, two species of the Noteridae, 132 species of the Dytiscidae, 28 species of the Helophoridae, three species of the Georissidae, six species of the Hydrochidae, one species of the Spercheidae, 77 species of the Hydrophilidae, 51 species of the Hydraenidae, 24 species of the Scirtidae, 19 species of the Elmidae, 12 species of the Dryopidae, four species of the Limnichidae, 10 species of the Heteroceridae, and one species of the Psephenidae. We do not regard as part of the Czech fauna three species of the Haliplidae, 13 species of the Dytiscidae, four species of the Helophoridae, six species of the Hydrophilidae, two species of the Hydraenidae, four species of the Elmidae, and one species of the Heteroceridae, in which all previous records proved erroneous: Haliplus apicalis Thomson, 1868, H. lineolatus Mannerheim, 1844, and H. mucronatus Stephens, 1828 (all Haliplidae); Agabus biguttulus Thomson, 1867, A. clypealis Thomson, 1867, Bidessus pumilus (Aubé, 1836), Colymbetes paykulii Erichson, 1837, Deronectes aubei aubei (Mulsant, 1843), D. opatrinus (Germar, 1824), Graptodytes fl avipes (Olivier, 1795), Hydroporus foveolatus Heer, 1839, H. jonicus Miller, 1862, H. nigellus Mannerheim, 1853 (mentioned as H. tartaricus LeConte, 1850, in the literature), Ilybius angustior (Gyllenhal, 1808), and I. erichsoni (Gemminger et Harold, 1868) (all Dytiscidae); Helophorus laticollis Thomson, 1853, H. pumilio Erichson, 1837, H. rufi pes (Bosc, 1791), and H. schmidti Villa et Villa, 1838 (all Helophoridae); Anacaena rufi pes (Guillebeau, 1896), Berosus affinis Brullé, 1935, B. bispina Reiche et Saulcy, 1856, B. spinosus (Steven, 1808), Helochares punctatus Sharp, 1869, and Paracymus relaxus Rey, 1884 (all Hydrophilidae); Hydraena angulosa Mulsant, 1844, and H. angustata Sturm, 1836 (both Hydraenidae); Normandia nitens (Ph. Müller, 1817), N. sodalis (Erichson, 1847), Oulimnius troglodytes (Gyllenhal, 1827), and Stenelmis canaliculata (Gyllenhal, 1808) (all Elmidae); and Augyles crinitus Kisenwetter, 1850 (Heteroceridae). On the other hand, we report as new for CZ three species of the Dytiscidae, three species of the Helophoridae, and four species of the Hydrophilidae: Hydroporus dobrogeanus Ieniştea, 1962, based on specimens from Moravia, Nebrioporus assimilis (Paykull, 1798) from Bohemia, and Porhydrus obliquesignatus (Bielz, 1852) from Moravia (all Dytiscidae); Helophorus brevitarsis Kuwert, 1890, from Moravia, H. tuberculatus Gyllenhal, 1808, from Bohemia, and H. villosus Duftschmid, 1805, from Moravia (all Helophoridae); and Chaetarthria simillima Vorst et Cuppen, 2003, from both Bohemia and Moravia, Cercyon alpinus Vogt, 1969, from Bohemia, C. hungaricus Endrödy-Younga, 1967, from Moravia, and C. inquinatus Wollaston, 1864, from Bohemia (all Hydrophilidae). Moreover, we provide the fi rst Bohemian and Moravian records for the following species: Helophorus paraminutus Angus, 1986, from Bohemia and H. strigifrons Thomson, 1868, from Moravia (both Helophoridae); Hydrochus brevis (Herbst, 1793) and H. megaphallus Berge Henegouwen, 1988, from Bohemia (both Hydrochidae); Hydraena truncata truncata Rey, 1885, Ochthebius lividipennis Peyron, 1858, and O. peisonis Ganglbauer, 1901, from Bohemia (all Hydraenidae); Elodes pseudominuta Klausnitzer, 1971, from Moravia (Scirtidae); and Dryops similaris Bollow, 1936, from Moravia (Dryopidae). For the following species we also confi rm their occurrence in CZ, Bohemia or Moravia, or provide the first detailed data for records previously published in other catalogues and papers: Gyrinus suffriani Scriba, 1855, in Moravia (Gyrinidae); Hydroporus fuscipennis Schaum, 1868, in Moravia, and Hyphydrus aubei Ganglbauer, 1891, in CZ (from Moravia) (both Dytiscidae); Helophorus discrepans Rey, 1885, in CZ (from Moravia), and H. nivalis Giraud, 1852, in CZ (from Bohemia and Moravia) (both Helophoridae); Enochrus fuscipennis (Thomson, 1884) in Bohemia, Laccobius simulatrix Orchymont, 1932, and L. colon (Stephens, 1829) in Moravia, Sphaeridium bipustulatum Fabricius, 1781, in CZ (from Bohemia and Moravia), and S. substriatum Faldermann, 1838, in Bohemia (all Hydrophilidae); Aulacochthebius narentinus Reitter, 1885, in CZ (from Bohemia and Moravia), Hydraena egoni Jäch, 1986, H. gracilis balcanica Orchymont, 1930, and Ochthebius alpinus (Ieniştea, 1979) in CZ (all from Bohemia), O. lividipennis Peyron, 1858, and O. meridionalis Rey, 1885, from Moravia, and O. sidanus Orchymont, 1942, in CZ (from Moravia) (all Hydraenidae); Odeles gredleri (Kiesenwetter, 1863) in CZ (from Bohemia) (Scirtidae); Elmis rioloides (Kuwert, 1890) in Moravia (Elmidae); and Dryops anglicanus Edwards, 1909, in CZ (from Bohemia) and D. griseus (Erichson, 1847) in CZ (from Bohemia and Moravia) (both Dryopidae).

Key words: Faunistics, new records, ecological characteristics, bioindicator status, conservation, Coleoptera, Sphaeriusidae, Gyrinidae, Haliplidae, Noteridae, Hygrobiidae, Dytiscidae, Helophoridae, Georissidae, Hydrochidae, Spercheidae, Hydrophilidae, Hydraenidae, Scirtidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae, Czech Republic, Palaearctic region