Aphaenogaster irrigua Watanabe & Yamane, 1999: 734, fig. 18 (w.) JAPAN. Palearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: Japan: Ryukyu Is, Inokawa-dake, 27.v.1991 [colony 91072] (H. Watanabe). Type depository: none stated (perhaps NIAS, OIST, SKYC, perhaps also KUIC, MNHA, UTKC). Secondary type information: Secondary type material: 73 paratype workers. Secondary type locality: same as for holotype. Type-depository: none stated (perhaps NIAS, OIST, SKYC, perhaps also KUIC, MNHA, UTKC).