COI gene tree by maximum likelihood (ML) and species delimitation of Petrarca. Bootstrap support for neighbour-joining (NJ) and ML and posterior probability for Bayesian inference (BI) are presented at the main nodes. Results of species delimitation were presented by vertical bars, and the numbers in the black boxes were as follows: 1–3, results of ASAP with three highest ASAP-score; 4, 5, results of PTP method with maximum likelihood and the highest Bayesian supported solution; 6, result of GMYC.