Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A–G. Anacaena okinawana; A–C. from Okinawa-jima I., D–G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana.