Makranczy, G. 2009: Two interesting Thinobius species collected at the river Vişeu in Maramureş (Coleoptera: Staphylinidae: Oxytelinae). Travaux du Muséum National d’Histoire Naturelle «Grigore Antipa» 52: 249–261.
From Maramureº county (Romania) two little known and rare Thinobius species are recorded and their taxonomy is discussed. Thinobius minor Mulsant & Rey, 1870 was previously known only from the type locality, in southern France, recognized from Italy and newly recorded from Bulgaria and Romania. Another species collected with it, Thinobius gurzoeszterae sp. n. is described, based not only on the specimen from Valea Viºeului, but a further one from northern Italy. For their close phylogenetic relatedness and century-old confusion around certain names, Thinobius delicatulus Kraatz, 1957 and T. hummleri Bernhauer, 1940 are also given taxonomic treatment here. The following new synonymies are found: Thinobius minor Mulsant & Rey, 1870 = T. thinophiloides Schülke, 2008, syn. n., Thinobius delicatulus Kraatz, 1857 = T. bernhaueri Rambousek, 1910, syn. n., = T. helveticus Scheerpeltz, 1966, syn. n. Lectotypes are designated for Thinobius minor Mulsant & Rey, 1870, T. delicatulus Kraatz, 1857 and T. bernhaueri Rambousek, 1910. Information on the bionomics and characteristics of the required habitats is presented.
