Tetramorium chefketi Forel ^HNS, 1911

Tetramorium caespitum var. chefketi Forel ^HNS, 1911

Tetramorium chefketi Forel ^HNS: Agosti & Collingwood 1987a, 1987b

According to Agosti and Collingwood (1987a), the species (misspelled “chefteki”), which was described from the European part of Turkey, occurs also in Greece and Anatolia. We compared specimens from these areas with the worker syntypes (MHNG) and support this view. Schulz (1996) presented characters differentiating T. chefketi ^HNS from the closely similar T. moravicum ^HNS and T. forte ^HNS, and Sanetra and Buschinger (2000) as well as Schlick-Steiner et al. (2005) studied its phylogenetic position in relation to T. forte ^HNS, T. moravicum ^HNS and T. semilaeve ^HNS. Csösz et al. (unpubl.) ascribe the paralectotypes of T. forte ^HNS from Alušta (Crimea, Ukraine) to T. caespitum sarkissiani Forel ^HNS, 1911 and regard that taxon as synonymous to T. chefketi ^HNS, which has equal priority.