Fig. 1

Maximum likelihood tree including BOLD COI sequences for a selction of specimens of Macrosiphum and Sitobion, and including the best blast hit sequences of our specimens marked as CS1 & CS2_Sitobion_calvulum. The tree was inferred in IQ tree with the best fitting model as inferred with ModelFinder in IQ tree, node supports are indicated and based on1000 ultrafast bootstraps replicates, supports below 50 are not indicated.