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Taxonomy of Chrysotoxum festivum Linnaeus, 1758 (Diptera: Syrphidae) – an integrative approach

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Abstract

An integrative taxonomic approach revealed two taxa within Chrysotoxum festivum (Linnaeus, 1758) (Diptera, Syrphidae), C. festivum A and C. festivum B. In addition to morphological differences, results also showed significant distinction in geometric morphometrics of wings and surstyli, and in DNA sequence data (nuclear ITS2 sequences) between C. festivum A, C. festivum B, and the closely related species C. elegans Loew, 1841. From examination of type material, the name C. tomentosum Giglio-Tos, 1890 is proposed for C. festivum B, and the taxon is redefined. © 2013 The Linnean Society of London

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