• [Misspelled as ingrei by Chapman & Capco, 1951: 90.]
• Combination in Crematogaster (Acrocoelia): Emery, 1922c: 151
• Subspecies of Crematogaster egidyi: Emery, 1922c: 151; Chapman & Capco, 1951: 90; Bolton, 1995b: 155.

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. 1911i. Fourmis d'Afrique et d'Asie. Annexe. II. Quelques fourmis d'Asie. Revue Zoologique Africaine (Brussels) 1:284-286. PDF