European and Mediterranean Myzocallidini Aphid Species: DNA Barcoding and Remarks on Ecology with Taxonomic Modifications in An Integrated Framework

Myzocallis is a Holarctic genus of monoecious species of aphids mostly hosted by plants belonging to Fagales. To date, extensively morphological studies have been carried out on this group of aphids, but only sporadic molecular studies have been performed to understand the relationships among the different species. With the aim improve knowledges on these aspects, almost all species of the European and Mediterranean Myzocallidini species were investigated. As a consequence of the results obtained, Myzocallis (Agrioaphis) leclanti originally described as a subspecies of M. (A.) castanicola and M. (M.) schreiberi, considered a subspecies of M. (M.) boerneri, should be regarded at a rank of a full species. Moreover, the subgenus Agrioaphis, Lineomyzocallis, Neomyzocallis and Pasekia were elevated to the rank of genus, while Myzocallis remain as such.