title: The Extraordinary Diversity of Merodon avidus Complex (Diptera: Syrphidae)—Adding New Areas, New Species and a New Molecular Marker
abstract: In this paper, the <i>Merodon avidus</i> (Diptera, Syrphidae) species complex was revised, whereupon we discovered and described four new species for science: <i>Merodon atroavidus</i> Vujić, Radenković et Likov sp. nov., <i>M. magnus</i> Vujić, Kočiš Tubić et Ačanski sp. nov., <i>M. nigroscutum</i> Vujić, Radenković et Likov sp. nov. and <i>M. pseudomoenium</i> Vujić, Kočiš Tubić et Ačanski sp. nov. An integrative taxonomy approach was used to delimit species boundaries. Two molecular markers (
journal: Insects