The Bayesian 50% majority rule consensus tree of the analyzed samples of Melitaea inferred from COI sequences. Melitaea alatauica and M. telona sequences are used to root the tree. Museum ID numbers, GenBank accession numbers, species and subspecies names, and localities are shown to the right of the branches. Bayesian posterior probabilities higher than 0.75 are shown next to the recovered branches. b1 is M. ala bicolor, clade 1. b2 is M. ala bicolor, clade 2. i is M. ala irtyshica. k is M. kotshubeji kotshubeji. z is M. ala zaisana 1 is the M. ala species complex 2 is M. acraeina 3 is the M. didyma species complex. 4 is M. deserticola. 5 is the M. persea species complex. I is M. didyma species group. II is M. persea species group.