Ábrahám Levente (szerk.): Válogatott tanulmányok V. - Natura Somogyiensis 17. (Kaposvár, 2010)

LŐKKÖS, A: A Nagy-berek vízibogarai (Coleoptera: Hydradephaga, Hydrophiloidea)

168 NATURA SOMOGYIENSIS be collected in large, closed spots of Phragmites and Typ ha stands. It spends more time among dense vegetation and under the water than other Gyrinus species. So far it is known only from 16 localities in Hungary: Balatonederics, Budapest, Halászi, Izsák, Keszthely, Kimle, Mosonmagyaróvár, Nyírád, Orfíí, Pápa, Rábagyarmat, Siójut, Szeged, Szerencs, Tokaj, Verőcemaros, Visegrád (ÁDÁM 1986, 1992, ÁDÁM & HEGYESSY 2004, CSABAI et al. 2005b, CSABAI et al. 2010a, KÁLMÁN et al. 2008, KÖDÖBÖCZ et al. 2006, RÉVY 1943). Hydrochus megaphallus Berge Henegouwen, 1988 - The species is widely distributed yet rare in Europe. An acidophilus species preferring shallow water bodies with a muddy bottom and layer of detritus, most often found in the growths of sedges and rushes along the edges of both exposed and shaded fen-like habitats. It is rare in Hungary: Balatonfenyves, Biharugra, Budapest, Fúrta, Szigetszentmiklós (

BERGE HENEGOUWEN 1988, CSABAI & MÓRA 2003, CSABAI et al. 2004, MERKL 1996). Cercyon hungaricus - Most known localities of Cercyon hungaricus are situated in the Pannonian Basin and the species may therefore be considered as a Pannonian endemic. It was described from Hungary, specimens were collected in Balatonlelle, Miskolc (Lillafüred), Siófok and Zalavár (Kis-Balaton) (

ENDRÖDY-YOUNGA 1968). A further specimen was collected in Bares in southern Hungary (

GIDÓ & SZÉL 1998) and in Fonyód and Badacsony (

FIKACEK et al 2009). It is known in northern Slovenia (HEBAUER 2003), at a locality in southern Moravia (Czech Republic) (BOUKAL et al. 2007) and from southern Slovakia (

FIKACEK et al. 2009). Actually a terrestrial species living in the detritus and decaying plant debris on the shores of standing waters. Laccobius simulatrix d'Orchymont, 1932 - An Eastern European and Central Asian species. A thermophilus species, inhabiting edges of exposed standing and slowly flowing waters. From Hungary it is only known from Barcs, Bugac, Darány, Győr, Miskolc: Jávorkút, Szalonna, Tabdi, Zaláta (

BELLSTEDT & MERKL 1987, GENTILI & CHIESA 1975, GIDÓ & SZÉL 1998, SZÉL 1996, 1999). Enochrus ater (Kuwert, 1888) - Mediterranean and Central European species. Northern limits of its distributional range are in Austria and Hungary. It prefers densely vegetated stagnant waters, mainly the shallow parts overgrown with Phragmites and Typha species, frequent on saline habitats. Its habitus is with extremely variable. So far, there was only two published data from Hungary: Fertőrákos (

CSABAI & SZÉL 1999, CSABAI et al 2010a) and Sándorfalva (

CSABAI et al 2010b). Enochrus hamifer (Ganglbauer, 1901) - A discontinuously distributed species, occurring in the Pannonian Basin in Europe and Kazakhstan, Turkmenistan and Kyrgyzstan in Central Asia. A halobionic species, inhabiting densely vegetated, detritus-rich standing waters, especially along the seaside. It is frequent at the Great Hungarian Plain, but very rare in other regions (

ADÁM 1985, 2001, BELLSTEDT & MERKL 1987, CSABAI et al. 1999, CSABAI & MÓRA 2002). Acknowledgements The author's thanks are due to Dr. Ábrahám Levente (Somogy County Museums) and Rozner György (Balaton-felvidéki National Park) for sending specimens on which the present paper is based. I would like to thank to Dr. Ottó Merkl (Hungarian Natural History Museum, Budapest) for correcting the manuscript.