The Hydrophiloid beetles of Socotra Island (Coleoptera: Georissidae, Hydrophilidae) Author Fikáček, Martin Department of Entomology, National Museum, Kunratice 1, CZ- 148 00 Praha 4, Czech Republic; e-mail: mfikacek @ gmail. com & Department of Zoology, Faculty of Science, Charles University in Prague, Viničná 7, CZ- 128 44 Praha 2, Czech Republic Author Delgado, Juan A. Departamento de Zoología, Facultad de Biología, Universidad de Murcia, 30100, Murcia, Spain; e-mail: jdelgado @ um. es Author Gentili, Elio Via San Gottardo 37, I- 21030 Varese-Rasa, Italy; e-mail: elio. gentili. 32 @ alice. it text Acta Entomologica Musei Nationalis Pragae 2012 2012-12-17 52 107 130 journal article 10.5281/zenodo.5334580 0374-1036 5334580 Laccobius ( Microlaccobius ) praecipuus Kuwert, 1890 Material examined. 16 JJ, 10 ♀♀ , 1 spec. ( NMPC , MSNV ): Hallah Arhar (spring), 12°33.0′N 54°27.6′E , 15 m , 11.xi.2010 , lgt. J. Bezdĕk ; 8 spec. ( NMPC ): Halla area , Arhar , freshwater spring in sand dune, 12°33.0′N 54°27.6′E , 15 m a.s.l. , 9.–10.+ 15.vi.2012 , Socotra Expedition 2012 lgt .; 5 JJ, 5 ♀♀ ( NMPC ): wadi Ayhaft , 12°36.5′N , 53°58.9′E , 200 m , 7–8.xi.2010 , Jiří Hájek lgt .; 1 ♀ ( NMPC ): same label data, J. Bezdĕk lgt., 3 JJ, 1 ♀ ( CULS ): Dixiam Plateau , Wadi Esgego , 12°28′09″N 54°00′36″E , 300 m , 2–3.xii.2003 , Jan Farkač lgt .; 1 J, 2 ♀♀ ( NMPC ): same label data, David Král lgt .; 1 J, 1 ♀ ( NMPC ): same label data, Petr Kabátek lgt .; 2 ♀♀ ( NMPC ): Dixam plateau, Wadi Zeeriq , 12°31′08″N 53°50′09″E , 750 m , 3.xii.2003 , lgt. David Král ; 2 spec. ( NMPC ): Dixam plateau, Firmihin , Dracaena woodland, 12°28.6′N 54°01.1′E , 490 m a.s.l. , 14.–15.vi.2012 , Socotra Expedition 2012 lgt .; 1 J ( NMPC ): Ba’a village env., 12°32′19″N 54°10′41″E , 234 m , 5.xii.2003 , lgt. P. Kabátek ; 2 ♀♀ ( NMPC ): Homhil protected area, 12°34′27″N 54°18′32″E , 364 m , 28.–29.xi.2003 , lgt. P. Kabátek ; 1 J ( NMPC ): Aloove area , Hassan village env., 25°31.2′N 54°07.4′E , 221 m , 8.–10.xi.2010 , lgt. J. Bezdĕk ; 1 J, 1 ♀ ( NMPC ): Qualentiah env., slopes 5 km SE from Quaysoh , 12°39.69′N 53°26.658′E , 4–5.vi.2010 , lgt. V. Hula & J. Niedobová ; 1 ♀ ( NMPC ): Zemhon area , 12°20′58″N 54°06′30″E , 270–300 m , 16.–17.vi.2010 , lgt. V. Hula . Distribution. Laccobius praecipuus is a common species of the lowland regions of Socotra (ca. below 800 m a.s.l.). It is the commonest species of the genus in the Arabian Peninsula and is also widely distributed in the Afrotropical region as well as northern Africa ( GENTILI 1981 , 1988 , 1989 , 1991 ). First record from Socotra Island . Hydrophilini