Tetramorium depressum

From 20 to 1300m although big, populous nests are found at the higher altitudes, usually under stones. The few nests located in the drier coast seemed to be in a miserable and suffering state, with a small number of workers. But for a smaller size the morphology of lowland populations was indistinguishable from other populations. (Espadaler 2007)

Distribution based on Regional Taxon Lists
Palaearctic Region: Canary Islands.

Nomenclature

 *  depressum. Tetramorium caespitum r. depressum Forel, 1892g: 455 (w.) SPAIN (Canary Is). Emery, 1893c: 84 (q.m.). Subspecies of semilaeve: Santschi, 1936c: 202. Senior synonym of guancha and material of the unavailable name palmense referred here: Hohmann, La Roche, et al. 1993: 158. Raised to species: Espadaler, 2007: 121. See also: Santschi, 1921b: 430.
 * guancha. Tetramorium semilaeve st. guancha Santschi, 1929e: 150 (w.) SPAIN (Canary Is). [First available use of Tetramorium caespitum st. semilaeve var. guancha Santschi, 1921b: 431; unavailable name.] Junior synonym of depressum: Hohmann, La Roche, et al. 1993: 158.

References based on Global Ant Biodiversity Informatics

 * Barquín, J. Las hormigas de Canarias. Taxonomia, ecologia y distribucion de los Formicidae In Secretariado de publicaciones de la Universidad de La Laguna, Colección Monografías Nº 3. Tenerife: Universidad de La Laguna, 1981.
 * Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
 * Emery, C. "Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil IX. Tetramorium." Deutsche Entomologische Zeitschrift 1909 (1909): 695-712.
 * Espadaler, X. "The ants of El Hierro (Canary Islands)." Memoirs of the American Entomological Institute 80 (2007): 113-127.
 * Espadaler, Xavier. 2007. The Ants of El Hierro (Canary Islands) in Snelling. pp. 113-127
 * Espadaler, Xavier. 2007. The Ants of El Hierro (Canary Islands). Memoirs of the AMer113-127.
 * Forel A. 1893. Nouvelles fourmis d'Australie et des Canaries. Ann. Soc. Entomol. Belg. 37: 454-466.
 * Forel, A. "Fourmis de la faune méditerranéenne récoltées par MM. U. et J. Sahlberg." Revue Suisse de Zoologie 21 (1913): 427-438.
 * Forel, A. "Nouvelles fourmis d'Australie et des Canaries." Annales de la Société Entomologique de Belgique 37 (1893): 454-466.
 * Hohmann H., F. La Roche, G. Ortega, and J. Barquín. 1993. Bienen, Wespen und Ameisen der Kanarischen Inseln. Veröff. Überseemus. Bremen Naturwiss. 12: 14.
 * Menozzi C. 1929. Formiche di Cuba e delle Isole Canarie raccolte dal Prof. Filippo Silvestri. Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scuola Superiore d'Agricoltura, Portici. 23: 1-5.
 * Menozzi, C. "Formiche di Cuba e delle Isole Canarie raccolte dal Prof. Filippo Silvestri." Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scuola Superiore d'Agricoltura, Portici 23 (1929): 1-5.
 * Santschi, F. "Fourmis d'Espagne et autres espéces paléartiques." EOS (Revista española de entomología) 1 (1925): 339-360.
 * Santschi, F. "Notes sur les fourmis paléarctiques. I. Quelques fourmis du nord de l'Afrique et des Canaries." Real Sociedad Española de Historia Natural (Madrid) Tomo del C (1921): 424-436.
 * Wellenius, O. H. "Entomologische Ergebnisse der finnländischen Kanaren-Expedition 1947-1951. No. 10. Formicidae Insularum Canariensium. Systematik, Ökologie und Verbreitung der Kanarischen Formiciden." Commentationes Biologicae Societas Scienitarum Fennica 15(8) (1955): 1-20.
 * Wheeler, W. M. "The ants of the Canary Islands." Proceedings of the American Academy of Arts and Sciences 62 (1927): 93-120.