Taxonomic history
Combination in Crematogaster (Physocrema): Emery, 1922c PDF: 140.Combination in Crematogaster (Crematogaster): Blaimer, 2012c PDF: 55.Subspecies of Crematogaster difformis: Emery, 1893m PDF: 81 (footnote); Emery, 1895m: 468; Forel, 1903a PDF: 683; Wheeler, 1919f PDF: 75; Emery, 1922c PDF: 140; Chapman & Capco, 1951 PDF: 102; Bolton, 1995b: 160.Status as species: Dalla Torre, 1893 PDF: 84; Bingham, 1903 PDF: 146; Hosoishi & Ogata, 2008 PDF: 6 (redescription); Hosoishi & Ogata, 2009a PDF: 27 (redescription); Pfeiffer et al., 2011 PDF: 46.
