Neighbor-joining trees of CO1 barcode sequences for species of Iratiquedius, Paraquedius, and Quediellus, calculated under the Kimura-2 model for pairwise distance. White circles indicate macropterous ‘debilis’ morphotypes of Q. debilis, all other Q. debilis are of brachypterous ‘nanulus’ morphotypes. Scale bar equivalent to 2% divergence. Sequence length, including number of ambiguous base pairs (N’s), is given at the end of each sample name.