 A 2006 molecular phylogenetic study found that the two east Asian species were more similar to the Siberian blue robin, at the time in "Luscinia", than to the European robin.In 2010 a large study confirmed this result and also found that "Luscinia" was non-monophyletic.The genus "Larvivora" was therefore resurrected to accommodate a clade containing the Japanese robin, the Ryukyu robin, the Siberian blue robin and several other species that had previously been placed in "Luscinia".