The bopyrid isopod species Rhopalione sinensis Markham, 1990, is recorded for only the second time, from a new locality in China outside Hong Kong, the type-locality. This is also the fi rst fi nding of the male R. sinensis, which is herein described. Its host, Arcotheres sinensis(Shen, 1932) is a new record. A review of the four known species of Rhopalione Pérez, 1920, an updated diagnosis of the genus and a key to species are provided.
The bopyrid isopod species Rhopalione sinensis Markham, 1990, is recorded for only the second time, from a new locality in China outside Hong Kong, the type-locality. This is also the first finding of the male R. sinensis, which is herein described. Its host, Arcotheres sinensis (Shen, 1932) is a new record. A review of the four known species of Rhopalione Perez, 1920, an updated diagnosis of the genus and a key to species are provided.