Maximum likelihood tree of Empria based on mitochondrial COI and nuclear NaK and POL2. Best-fit model chosen according to the Bayesian information criterion was GTR + R3. Numbers above nodes show SH-aLRT support (%) / ultrafast bootstrap support (%) values. Support values for weakly supported branches (< 90) are not shown. Letters “f” and “m” stand for “female” and “male”. Numbers at the end of the tip labels refer to the length of the sequence and the number of heterozygous positions in nuclear DNA. Empria candidata and E. multicolor were used to root the tree.