Messor structor var. ibericus Santschi, 1925g: 343 (w.) SPAIN. Palearctic.

Primary type information: Primary type material: lectotype worker (by designation of Steiner et al., 2018: 398). Primary type locality: lectotype Spain: Cataluña, Gavá, vii.1894 (A. Cabrera). Primary type depository: MSNG. Secondary type information: Secondary type material: 1 paralectotype worker. Secondary type locality: same as for lectotype. Secondary type depository: MSNG. Type notes: 1) Taxon based on Messor sordidus Forel, 1892g, sensu Bondroit, 1918: 152, misidentification. 2) Lectotype and paralectotype are on the same pin.