A Maximum Likelihood COI tree of the Fabaceae-feeding Phyllonorycter generated with the K2P nucleotide substitution model. Each specimen is identified by its Process ID code (see Table S2) and Barcode Index Number (BIN). Branch lengths are proportional to the number of substitutions per site. The percentage of trees in which the associated taxa clustered together is shown next to the branches, with the bootstrap values >70. Species indicated by red arrow highly similar to haasi group morphologically (male genitalia), but not genetically. *P. cerasinella has symmetrical male genitalia, **P. insignitella asymmetrical (Laštůvka and Laštůvka 2006).