O. Merkl szerk.: Folia Entomologica Hungarica 69. (Budapest, 2008)

ROVARTANI KÖZLEMÉNYEK Volume 69 2008 pp. 173-177. Thinobius korbeli found in the Szigetköz, Hungary (Coleoptera: Staphylinidae: Oxytelinae) GY. MAKRANCZY Department of Zoology, Hungarian Natural History Museum, H-1088 Budapest, Baross u. 13, Hungary. E-mail: makranczy@nhmus.hu Abstract - The blind, flightless, soil-dwelling staphylinid Thinobius korbeli LÖBL et RYCHLÍK, 1994 is first reported from Hungary. The beetle was found in the Szigetköz. Certain important primary and secondary sexual characters are illustrated. With 7 figures. Key words - Coleoptera, Staphylinidae, Oxytelinae, Thinobius korbeli, endogcan, sexual characters. INTRODUCTION The Szigetköz is the area bordered by the Mosoni-Duna and the main watercourse of Duna (Danube) river. An intensive faunistic-ecological study of the area was triggered by the diversion of the runway of the Duna in 1992 by Slovakia onto their side (Csallóköz). The alteration affects the riverbank habitats from Samorin to Gabcikovo. The Hungarian Natural History Museum started a monitoring study in 1993, focused on the transformation of the faunas caused by the changes. Continuous studies were carried out in Pannonic willow galleries (Salicetum albae-fragilis) at Nagybajcs, Ásványráró and Lipót. In 1994 a blind, flightless staphylinid, Thinobius korbeli LÖBL et RYCHLÍK, 1994 was described from Slovakia as new to science, with a detailed ecological-morphological discussion (LÖBL & RYCHLÍK 1994). This species is unique in the subfamily Oxytelinae, where real soil-dwelling taxa were not known previously. Since the localities from where the species was mentioned (Cicov, Gabcikovo, Trstená na Ostrove) exactly mirror the