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Azuma, M. 1938. A list of ants found in Osaka Prefecture, Japan. [In Japanese.]. Entomological World. Tokyo 6:238-243. PDF

Funakubo, H. 1939. A list of Hymenoptera from Kitakomagun, Yamanashi Prefecture. [In Japanese.]. Entomological World. Tokyo 7:323-335. PDF

Notes: Formicidae p. 332.