The caddisfly fauna (Insecta, Trichoptera) of the rivers of the Black Sea basin in Kosovo with distributional data for some rare species

Volume: 182Start Page: 71End Page: 8

Drusus sharrensis sp. n. (Trichoptera, Limnephilidae), a new species from Sharr National Park in Kosovo, with molecular and ecological notes

In this paper we describe Drusus sharrensis sp. n., from the Sharr Mountains in Kosovo. Males of the new species are morphologically most similar to Drusus krusniki Malicky, 1981, D. kerek Oláh, 2011 and D. juliae Oláh, 2011 but differ mainly in exhibiting (1) a differently shaped spinose area on tergite VIII; (2) intermediate appendages anteriorly curved in lateral view with broad tips in dorsal view; (3) inferior appendages with a distinct dorsal protrusion in the proximal half. Females of the new species are morphologically most similar to D. krusniki, D. kerek, D. juliae, and D. plicatus Radovanovic, 1942 but mainly differ in (1) segment X that is longer than the supragenital plate with distinctly pointed tips; (2) supragenital plate quadrangular with a distinct round dorsal protrusion; (3) a vulvar scale with a small median lobe. Results of phylogenetic species delimitation support monophyly of Drusus sharrensis sp. n. and recover it as sister to a clade comprising (D. pelasgus Oláh, 2010 + D. juliae + D. arbanios Oláh, 2010 + D. plicatus + (D. dacothracus Oláh, 2010 + D. illyricus Oláh, 2010)). The new species is a micro-endemic of the Sharr Mountains, a main biodiversity hotspot in the Balkan Peninsula. Main threats to the aquatic ecosystems of this part of the Balkan Peninsula are discussed

New Records of Thremma anomalum

Distribution of Thremma anomalum was well documented by the late 1980s. How ever, macrozoobenthos research within Serbian watercourses between 1989 and 2010 reveal a shift of the western boundary of the distribution. Recent research in western Serbia and northern Montenegro has shown no trace of this species, in spite of its previous presence. In Bosnia and Herzegovina, the species was found in only one of ten former localities, implying that the species might entirely vanish from zoographic region 5 in the near future. On the other hand, the species was found at 17 localities in eastern, southeastern and southern Serbia, sections of the area where the species was not recorded earlier. This research has shown that T. anomalum is not restricted to cold waters and builds specific biocenoses characterized by dominance of Trichoptera and Gammaridae