• Combination in Temnothorax: Seifert, 2006: 8
• Subspecies of Temnothorax sordidulus: Csősz, 2001: 102; Czechowski et al., 2002: 52
• Junior synonym of Temnothorax tergestinus: Csősz et al., 2015: 57
• Status as species: Seifert, 2006: 8; Bračko, 2007: 18; Seifert, 2007: 241; Werner & Wiezik, 2007: 150; Casevitz-Weulersse & Galkowski, 2009: 496; Lapeva-Gjonova et al., 2010: 24; Karaman, 2011b: 33; Borowiec & Salata, 2012: 544; Czechowski et al., 2012: 152; Borowiec, 2014: 188; Steiner et al., 2017: 18; Seifert, 2018: 218; Werner et al., 2018: 7; Bračko, 2023: 117.
• [Note: Bračko, 2023: 118, reports Temnothorax sordidulus × Temnothorax saxonicus hybrids.]

Obsolete combinations

• Leptothorax sordidulus saxonicus

Citations

• Borowiec, L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25 (1-2):1-340. PDF
• Borowiec, L.; Salata, S. 2012. Ants of Greece – checklist, comments and new faunistic data (Hymenoptera: Formicidae). Genus (Wroclaw) 23 (4):461-563. PDF
• Bračko, G. 2007. Checklist of the ants of Slovenia (Hymenoptera: Formicidae). Natura Sloveniae 9 (1):15-24. PDF
• Bračko, G. 2023. Atlas of the ants of Slovenia. Ljubljana: Biotechnical Faculty, 251 pp.
• Casevitz-Weulersse, J.; Galkowski, C. 2009. Liste actualisée des fourmis de France (Hymenoptera, Formicidae). Bulletin de la Société Entomologique de France 114:475-510. PDF
• Csősz, S. 2001. Taxonomical and distributional notes on two new and a rare Leptothorax Mayr, 1855 species for the Hungarian ant fauna (Hymenoptera, Formicidae). Annales Historico-Naturales Musei Nationalis Hungarici 93:99-106. PDF
• Csősz, S.; Heinze, J.; Mikó, I. 2015. Taxonomic synopsis of the Ponto-Mediterranean ants of Temnothorax nylanderi species-group. PLoS ONE 10 (11):62 pp. e0140000. 10.1371/journal.pone.0140000 PDF
• Czechowski, W.; Radchenko, A.; Czechowska, W. 2002. The ants (Hymenoptera, Formicidae) of Poland. Warsaw: Museum and Institute of Zoology, Polish Academy of Sciences, 200 pp. PDF
• Czechowski, W.; Radchenko, A.; Czechowska, W.; Vepsäläinen, K. 2012. The ants (Hymenoptera: Formicidae) of Poland with reference to the myrmecofauna of Europe. (Fauna Poloniae n.s. 4). Warsaw: Natura Optima Dux Foundation, 496 pp.
• Karaman, M. G. 2011b. A catalogue of the ants (Hymenoptera, Formicidae) of Montenegro [in Montenegrin]. Podgorica: Catalogues 3, Volume 2, Montenegrin Academy of Sciences and Arts, 140 pp. PDF
• Lapeva-Gjonova, A.; Antonova, V.; Radchenko, A. G.; Atanasova, M. 2010. Catalogue of the ants (Hymenoptera, Formicidae) of Bulgaria. ZooKeys 62:1-124. PDF
• Seifert, B. 1995. Two new Central European subspecies of Leptothorax nylanderi (Förster, 1850) and Leptothorax sordidulus Müller, 1923 (Hymenoptera: Formicidae). Abhandlungen und Berichte des Naturkundemuseums Görlitz 68(7):1-18. PDF
• Seifert, B. 2006. Temnothorax saxonicus (Seifert, 1995) stat.n., comb.n. – a parapatric, closely-related species of T. sordidulus (Müller, 1923) comb.n. and description of two new closely-related species, T. schoedli sp.n. and T. artvinense sp.n., from Turkey (Hymenoptera: Formicidae). Myrmecologische Nachrichten 8:1-12. PDF
• Seifert, B. 2007. Die Ameisen Mittel- und Nordeuropas. Tauer: lutra Verlags- und Vertriebsgesellschaft, 368 pp.
• Seifert, B. 2018. The ants of Central and North Europe. Boxberg: Lutra, 407 pp.
• Steiner, F. M.; Ambach, J.; Glaser, F.; Wagner, H. C.; Müller, J.; Schlick-Steiner, B. C. 2017. Checklisten der Fauna Ősterreichs, No. 9: Formicidae (Insecta: Hymenoptera). Wien: Ősterreichischen Akademie der Wissenschaften, 1-23.
• Werner, P.; Bezděčka, P.; Bezděčková, K.; Pech, P. 2018. An updated checklist of the ants (Hymenoptera, Formicidae) of the Czech Republic. Acta rerum naturalium 22:5-12. PDF
• Werner, P.; Wiezik, M. 2007. Vespoidea: Formicidae (mravencovití). Acta Entomologica Musei Nationalis Pragae. Supplementum 11:133-164. PDF