• Lectotype designation: Hosoishi & Ogata, 2016a: 594.
• Combination in Crematogaster (Orthocrema): Emery, 1922c: 132; Hosoishi & Ogata, 2016a: 594
• Subspecies of Crematogaster biroi Mayr, 1897: Emery, 1922c: 132; Chapman & Capco, 1951: 97; Bolton, 1995b: 160.
• Status as species: Hosoishi & Ogata, 2016a: 594 (redescription); Jaitrong et al., 2016: 36; Khachonpisitsak et al., 2020: 92; Wang et al., 2022: 80.

Obsolete combinations

• Crematogaster biroi quadriruga

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Chapman, J. W.; Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monographs of the Institute of Science and Technology. Manila 1:1-327. PDF
• Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B:95-206. PDF
• Forel, A. 1911l. Sur le genre Metapone n. g. nouveau groupe des Formicides et sur quelques autres formes nouvelles. Revue Suisse de Zoologie 19:445-459. PDF
• Hosoishi, S.; Ogata, K. 2016a. Systematics and biogeography of the ant genus Crematogaster Lund subgenus Orthocrema Santschi in Asia (Hymenoptera: Formicidae). Zoological Journal of the Linnean Society 176:547-606. 10.1111/zoj.12330 PDF
• Jaitrong, W.; Guénard, B.; Economo, E. P.; Buddhakala, N.; Yamane, S. 2016. A checklist of known ant species of Laos. Asian Myrmecology 8:17-48. PDF
• Khachonpisitsak, S.; Yamane, S.; Sriwichai, P.; Jaitrong, W. 2020. An updated checklist of the ants of Thailand (Hymenoptera, Formicidae). ZooKeys 998:1-182. 10.3897/zookeys.998.54902 PDF
• Wang, W. Y.; Soh, E. J. Y.; Yong, G. W. J.; Wong, M. K. L.; Guénard, B.; Economo, E. P.; Yamane, S. 2022. Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy. Asian Myrmecology 15: e015006:1-152. [online early] 10.20362/am.015006 PDF