Bayesian phylogenetic tree of A. elodeoides sp. nov. and other Andricus species based on COI and 28S sequences. Bold font refers to the sequence obtained in this study, and others are downloaded from NCBI. The photograph on the right refers to the gall of adult emergence. The letters in parentheses indicate the sampled populations shown in Table 1. The length of the branches is drawn to scale of genetic distance and the number over branches is posterior probability. Melikaiella bicolor and Dryocosmus liui were used as the outgroup.