Preliminary division of not socially parasitic Greek Temnothorax Mayr, 1861 (Hymenoptera, Formicidae) with a description of three new species.

The division of Greek members of the genus Temnothorax into 17 morphological groups is proposed. Temnothorax aveli species group is reviewed with three species: T. turcicus (Santschi) (North Aegean Islands, Sterea Ellas, Peloponnese and Thessaly), and two species new to science: Temnothorax brackoi sp. nov. (Epirus, Ionian Islands, Macedonia, Peloponnese, western Sterea Ellas, Thessaly, and also Dalmatia in Croatia), and T. messiniaensis sp. nov. (Ionian Islands and Peloponnese); a new species Temnothorax triangularis sp. nov., a member of the Temnothorax nylanderi species group is also described (Sterea Ellas: Euboea Island).