02105nas a2200169   4500008004100000245007300041210006900114300000900183490000900192520159600201653001201797100001801809700002101827700001601848700002401864856004701888       2006                        eng d00aIntegrative taxonomy of Iberian Merodon species (Diptera, Syrphidae)0 aIntegrative taxonomy of Iberian Merodon species Diptera Syrphida  a1-260 v13773 aThe genus Merodon Meigen, 1803 (Syrphidae, Diptera), with more than 50 European species, is primarily distributed in the Mediterranean region, there being 34 species that occur in the Iberian Peninsula. The morphological variation found within some species from the Iberian Peninsula prompted us to test their taxonomic status by integrating morphological and molecular data. We generated partial sequences of the mitochondrial, protein-coding gene cytochrome c oxidase subunit I (COI), the nuclear, internal transcribed spacer (ITS2) region, and the D2 region of the nuclear 28S rRNA gene. COI and ITS2 sequences were obtained for most included taxa. The variability of the COI sequences showed great differences between the studied species groups, exhibiting an interspecific range from 0.29% to 12.5% between ingroup taxa. Closely related taxa of the aureus complex (e.g. M. quercetorum and M. legionensis) presented identical COI sequences. The obtained ITS2 sequences showed low intraspecific variability, and only a few taxa presented more than one genotype. Species status and delimitation were discussed for all taxa in the light of available morphological and molecular character information. Using the obtained sequence data for COI and 28S we inferred the phylogenetic relationships of the included taxa, using parsimony analysis. Separate analysis of the COI sequences identified four, quite wellsupported clades within Merodon, the desuturinus, albifrons, nigritarsis and aureus groups. Combined analysis of the COI and 28S genes produced a topology similar to the COI topology.10aMerodon1 aMengual, Ximo1 aStåhls, Gunilla1 aVujic, Ante1 aMarcos-Garcia, M.A.  uhttps://syrphidae.myspecies.info/node/9309