The Ryukyu robin (Erithacus komadori) is a bird endemic to the Ryūkyū Islands, of Japan. It is sometimes placed in the genus Luscinia, but recent research suggests that the East Asian robins belong in a new genus uniting them with some East Asian Luscinia members such as the Siberian blue robin.
^Seki, Shin-Ichi (2006). "The origin of the East Asian Erithacus robin, Erithacus komadori, inferred from cytochrome b sequence data". Molecular Phylogenetics and Evolution39 (3): 899–905. doi:10.1016/j.ympev.2006.01.028. PMID16529957.