Tetramorium alternans Santschi, 1929 nov. stat. Tetramorium caespitum v. alternans Santschi, 1929 Cagniant (1997), treating this taxon as a subspecies of T. caespitum, cites records from diverse sites throughout Morocco. We have recently procured further samples, including the first known gyne (Morocco, Middle Atlas, Reg. Meknes, in CAS), and regard it as a good species which may occur throughout the Maghreb. Some specimens from Tunisia (in NHMB) are very similar, as are workers from the northeastern mountains of Teneriffa.

Published as part of Güsten, R., Schulz, A. & Sanetra, M., 2006, Redescription of Tetramorium forte Forel, 1904 (Insecta: Hymenoptera: Formicidae), a western Mediterranean ant species., pp. 1-35 in Zootaxa 1310 on page 27