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AbstractExamination of 122 specimens of XanthogrammaSchiner, 1861 (Diptera: Syrphidae) from varied localities in Europe (+Turkey) resulted in the description of two new species (X. aeginaeRicarte, Nedeljković, and Vujić new speciesand X. pilosumNedeljković, Ricarte, and Vujić new species), as well as new data on six other species. Most of the examined material originated from the Balkan Peninsula and Greek islands. New species concepts were supported by morphological and molecular evidence. Relationships among the eight studied species were analysed and discussed based on the data of nuclear (ITS2) and mitochondrial (COI) genes sequences. An identification key to the European species of Xanthogrammais provided. Lectotypes are designated for Doros decoratumZetterstedt, 1843, Lasiophthicus novusRondani, 1857, Syrphus laetusFabricius, 1794, Syrphus ornatusMeigen, 1822, and Xanthogramma nobilitatumFrey, 1946.

AbstractStudy of specimens of MerodonMeigen collected in southwestern Europe resulted in new data and taxonomic changes for this genus. The cryptic species Merodon confusussp. nov.(Merodon equestrisspecies group) is described based on specimens collected in Caba?eros National Park, central Spain. Morphological and molecular diagnostic characters are provided to separate members of the species group. Merodon aeneus fulvusGil Collado is proposed as a junior synonym of Merodon pumilusMacquart. The first Iberian record of Merodon rufusMeigen is reported and updates of the revision of Iberian Merodonare provided.