Maximum Likelihood tree of phylogenetic relationships within the Potamophylax winneguthi species group and closely related congeners. The P. winneguthi group comprises a highly supported clade with new species P. coronavirus sp. n. supported as sister to other species of the group, including yet ambiguously identified taxa from the Sharr, Rila and Bajgorë Mountains. Support from SH-like approximate likelihood ratio tests/Ultrafast Bootstrap/Bayesian posterior probabilities are presented above nodes; outgroup: Melampophylax austriacus.