Taxonomic history
Combination in Crematogaster (Orthocrema): Emery, 1922c PDF: 132.Combination in Crematogaster (Mesocrema): Santschi, 1928b PDF: 33.Combination in Crematogaster (Orthocrema): Blaimer, 2012c PDF: 55.See also: Hosoishi & Ogata, 2012 PDF: 24.