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Larval description, genetic and ecological features of Drusus radovanovici radovanovici Marinković-Gospodnetić, 1971 (Trichoptera, Limnephilidae) with some phylogenetic and taxonomic data on the bosnicus group in the Dinaric part of Balkan Peninsula

Species of the genus Drusus usually inhabit cold springs and spring areas of mountain streams. Isolation of populations and a patchy distribution are reasons for high diversity and endemism in this genus. Nine taxa from the bosnicus group (genus Drusus) live in the Balkan Peninsula (Croatia, Bosnia and Herzegovina, Montenegro, Macedonia). This study has two main objectives. First, morphological, ecological, and genetic features (mitochondrial COI and 16S genes) of the final larval instar of Drusus radovanovici radovanovici from Bosnia and Herzegovina are analysed. Association of larvae and adults of D. radovanovici radovanovici is carried out according to genetic data (mitochondrial DNA) of adults and larvae, and supported by their distribution in Bosnia and Herzegovina. Second, phylogeny, taxonomy and distribution of taxa of the bosnicus group in the Balkan Peninsula are discussed. The analysis includes morphological and genetic data for the known larvae of the genus Drusus distributed in the Balkans. As a consequence, both subspecies of Drusus radovanovici are ranked as species (D. radovanovici and D. septentrionis stat. n.), and the status of other taxa from the bosnicus group is discussed.

Drusus; larval description; phylogeny; morphology; mtDNA; taxonomy; Balkans

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