A NEW SPECIES OF OTIORHYNCHUS GERMAR, 1822 (COLEOPTERA: CURCULIONIDAE: ENTIMINAE) FROM ANATOLIA, TURKEY 1 Bekir Keskin 2 and I. Ethem Cevik 2 ABSTRACT: A new species of Otiorhynchus is described from western Turkey. Otiorhynchus (Pliadonus) lilligi sp. n., is easily distinguishable from O. (Pliadonus) frater Styerlyn, 1861 by the existence of a sharp tooth on the mesofemora of the former. KEY WORDS: Otiorhynchus, Coleoptera, Curculionidae, Entiminae, Turkey, new species The genus Otiorhynchus Germar, 1822 is one of the most speciose groups of Coleopterous weevils (Coleoptera, Curculionidae) with a mostly Palearctic dis- tribution (Magnano, 1998). In recent years, following the work of Magnano (1998), the taxonomy of the genus Otiorhynchus has undergone several impor- tant changes: the status of previously recognized species groups have been reor- ganized and defined as subgenera. Currently, the subgenus Pliadonus (Reitter, 1912) is a controversial group of Otiorhynchus on its systematic. Pliadonus which was previously defined as a species group in the subgenus Tournieria (sensu Reitter) by Reitter (1912) is considered as the synonym of the Tournieria (Magnano, 1998, Alonzo-Zarazaga, 1999). Based on morphological data, Davidian and Savitsky (2005) also defined this species group as a subgenus. On the other hand, cluster analysis of Bray Curtis similarity indices and their dis- tinction discriminant analysis of data from 43 morphological characters of 24 Western Anatolian species belonging to 16 genera of Otiorhynchus indicate that Pliadonus should be defined as subgenus (Keskin, 2005). Only one species, Otiorhynchus frater (Stierlin, 1861), belonging to the sub- genus Pliadonus lives in West Anatolia (Reitter 1913, Lona 1936). The geo- graphical distribution of O. frater includes the area comprised by eastern Bul- garia to northwestern Turkey (Angelov 1976). The southernmost border known for this species is Uludag (Lodos et al., 1978). Other species of Turkish Pliadonus live in the Alpine and sub-Alpine zones of northeastern Anatolia and the Caucasus (Reitter 1913, Davidian and Savitsky 2005). Here, a new species of Otiorhynchus, subgenus Pliadonus is described from Bozdg ˘, a 2500 m high mountain of Western Anatolia with many endemic species. Most of the species belonging to tribus Otiorhynchini living in Bozdag ˘ at only above 1100 m are either endemic [O. (Cryphiphorus) dubitabilis Fairmaire, 1866 and Neotournieria lodosianus (Magnano, 1977)] or subendemic [O. (Podoro- pelmus) kaltakkirani Voss, 1936 and O. (Tecutinus) latifrons Stierlin, 1893]. Apart from these species, the widely distributed species O. (Melasemnus) ovali- Volume 118, Number 5, November and December 2007 493 ______________________________ 1 Received on March 14, 2007. Accepted on May 21, 2007. 2 Department of Biology, Ege University, Izmir 35100, Turkey. E-mails: (BK) bekir.keskin@ege. edu.tr, (IEC) ethem.cevik@ege.edu.tr. Mailed on January 18, 2008