• Replacement name for Messor semirufus nigriceps Santschi, 1929e. [Junior primary homonym of Messor barbarus nigriceps Santschi, 1925g.]
• [Unresolved junior primary homonym of Messor capitatus nigricans Santschi, 1929e (Bolton, 1995b: 255).]
• Junior synonym of Messor semirufus: Baroni Urbani, 1974a: 227; Bolton, 1995b: 255.

Citations

• Baroni Urbani, C. 1974a. Studi sulla mirmecofauna d'Italia. XII. Le Isole Pontine. Fragmenta Entomologica 9:225-252. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Santschi, F. 1932c. Notes sur les fourmis du Sahara. Bulletin du Muséum National d'Histoire Naturelle (2)4:516-520. PDF