• Lectotype designation: Hosoishi & Ogata, 2016a: 590.
• Wheeler, 1928d: 111 (q.m.)
• Combination in Crematogaster (Orthocrema): Emery, 1922c: 131; Blaimer, 2012c: 55.
• Subspecies of Crematogaster sordidula: Wheeler, 1906h: 312; Yano, 1910a: 419; Emery, 1912e: 671; Emery, 1922c: 131; Santschi, 1925f: 85; Wheeler, 1928d: 111; Santschi, 1930c: 263 (in key); Wheeler, 1930k: 66; Teranishi, 1940: 17; Eidmann, 1941a: 18; Brown, 1949g: 37; Azuma, 1950a: 35; Azuma, 1951: 87; Chapman & Capco, 1951: 99; Azuma, 1953: 2; Onoyama, 1980a: 198.
• Status as species: Collingwood, 1976a: 303; Azuma, 1977a: 114; Kupyanskaya, 1990a: 129; Ogata, 1991b: 128; Morisita et al., 1992: 61; Bolton, 1995b: 159; Wu & Wang, 1995a: 63; Zhou, 2001a: 73; Zhang & Zheng, 2002: 219; Imai et al., 2003: 108; Radchenko, 2005b: 133; Guénard & Dunn, 2012: 42; Hosoishi & Ogata, 2016a: 590 (redescription).
• Senior synonym of Crematogaster sordidula japonica: Brown, 1949g: 37; Onoyama, 1980a: 198; Bolton, 1995b: 159; Zhou, 2001a: 73; Imai et al., 2003: 108; Hosoishi & Ogata, 2016a: 590.

Junior synonyms

• Crematogaster sordidula japonica Forel, 1912

Obsolete combinations

• Crematogaster sordidula osakensis

Citations

• Azuma, M. 1950a. On the myrmecological-fauna of Tomogashima, Kii Prov., with the description of new genus and new species. [In Japanese.]. Hyogo Biology 1:34-37. PDF
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• Azuma, M. 1953. On the myrmecological fauna of Mt. Rokko, Hyogo Prefecture. [In Japanese.]. Warera 2:1-7. PDF
• Azuma, M. 1977a. On the myrmecological-fauna of Mt. Rokko, Hyogo, with description of a new species (Formicidae, Hymenoptera). [In Japanese.]. Hyogo Biology 7:112-118. PDF
• Blaimer, B. B. 2012c. A subgeneric revision of Crematogaster and discussion of regional species-groups (Hymenoptera: Formicidae). Zootaxa 3482:47-67. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
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• Eidmann, H. 1941a. Zur Ökologie und Zoogeographie der Ameisenfauna von Westchina und Tibet. Wissenschaftliche Ergebnisse der 2. Brooke Dolan-Expedition 1934-1935. Zeitschrift für Morphologie und Ökologie der Tiere 38:1-43. PDF
• Emery, C. 1912e. Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. Teil XI. Deutsche Entomologische Zeitschrift 1912:651-672.
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• Imai, H. T.; Kihara, A.; Kondoh, M.; Kubota, M.; Kuribayashi, S.; Ogata, K.; Onoyama, K.; Taylor, R. W.; Terayama, M.; Tsukii, Y.; Yoshimura, M.; Ugawa, Y. 2003. Ants of Japan. Tokyo: Gakken, 224 pp. PDF
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