title: Description of two new filtering carnivore Drusus species (Limnephilidae, Drusinae) from the Western Balkans.
abstract: Two new species of the genus Drusus (Trichoptera, Limnephilidae, Drusinae) from the Western Balkans are described. Additionally, observations on the biodiversity and threats to the region's endemic aquatic fauna are discussed. Drususkrpachi sp. n. is a micro-endemic of the Korab Mountains, Macedonia, and Drususmalickyi sp. n. is a micro-endemic of the Prokletije Mountains, Albania. Both new species are most similar to Drususmacedonicus but differ from the latter in the shape of segment IX, the shape of the tips of the intermediate appendages in lateral view, the shape of the inferior appendages, and the form and shape of the parameres. In addition, males of the European species of filtering carnivore Drusinae are diagnosed and illustrated, including Cryptothrixnebulicola McLachlan, Drususchrysotus Rambur, Drususdiscolor Rambur, Drususmacedonicus Schmid, Drususmeridionalis Kumanski, Drususmuelleri McLachlan, Drususromanicus Murgoci and Botosaneanu, and Drusussiveci Malicky. These additions to the Western Balkan fauna demonstrate the significance of this region for European biodiversity and further highlight the importance of faunistic studies in Europe.
authors.affiliation: Department of Limnology and Bio-Oceanography, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
authors.forename: Simon
authors.initials: S
authors.lastname: Vitecek
authors.affiliation: Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, HR-10000 Zagreb, Croatia.
authors.forename: Mladen
authors.initials: M
authors.lastname: Kučinić
authors.affiliation: Tarján u. 28, H-4032 Debrecen, Hungary.
authors.forename: János
authors.initials: J
authors.lastname: Oláh
authors.affiliation: Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, HR-10000 Zagreb, Croatia.
authors.forename: Ana
authors.initials: A
authors.lastname: Previšić
authors.affiliation: Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, D-60325 Frankfurt a.M., Germany.
authors.forename: Miklós
authors.initials: M
authors.lastname: Bálint
authors.affiliation: Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor 5-7, 400006 Cluj-Napoca, Romania.
authors.forename: Lujza
authors.initials: L
authors.lastname: Keresztes
authors.affiliation: Department of Limnology and Bio-Oceanography, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
authors.forename: Johann
authors.initials: J
authors.lastname: Waringer
authors.affiliation: Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, D-60325 Frankfurt a.M., Germany.
authors.forename: Steffen U
authors.initials: SU
authors.lastname: Pauls
authors.affiliation: Institute of Hydrobiology and Aquatic Ecology Management, University of Natural Resources, Max-Emanuelstrasse 17, A-1180 Vienna, Austria.
authors.forename: Wolfram
authors.initials: W
authors.lastname: Graf
keywords: Caddisfly; Mediterranean; Southern Europe; aquatic diversity; conservation; taxonomy