Tetramorium impurum

Distribution based on Regional Taxon Lists
Palaearctic Region: Andorra, Austria, Belgium, Croatia, Czech Republic, Germany, Hungary, Iberian Peninsula, Italy, Montenegro, Netherlands, Poland, Portugal, Romania, Slovenia, Spain, Switzerland.

Other Ants
This ant is parasitized by the workerless Tetramorium atratulum.

Nomenclature

 *  impurum. Myrmica impura Foerster, 1850a: 48 (w.) GERMANY.
 * Emery, 1925c: 184 (q.); Kutter, 1977c: 151 (m.).
 * Combination in Tetramorium: Mayr, 1855: 426.
 * Junior synonym of caespitum: Curtis, 1854: 215; Mayr, 1855: 427; Nylander, 1856b: 87; Smith, F. 1858b: 117; Roger, 1863b: 26; Mayr, 1863: 456; Mayr, 1865: 89; Smith, F. 1871b: 3; André, 1874: 203 (in list); Forel, 1874: 100 (in list); Emery & Forel, 1879: 458; Dalla Torre, 1893: 132; Emery, 1924d: 276.
 * Subspecies of caespitum: Emery, 1925c: 178.
 * Status as species: Kutter, 1977c: 159; Pasteels, et al. 1981: 675; Cammaerts, et al. 1985: 109; Agosti & Collingwood, 1987b: 277 (in key); López, 1991a: 31; Bolton, 1995b: 409; Radchenko, et al. 1998: 109; Sanetra, et al. 1999: 321; Czechowski, et al. 2002: 65; Seifert, 2007: 248; Casevitz-Weulersse & Galkowski, 2009: 497; Boer, 2010: 68; Czechowski, et al. 2012: 178; Borowiec, L. 2014: 199 (see note in bibliography); Radchenko, 2016: 246; Wagner, et al. 2017: 120 (redescription).
 * Senior synonym of gregori: Wagner, et al. 2017: 120.
 * Senior synonym of penninum: Sanetra, et al. 1999: 321; Radchenko, 2016: 246; Wagner, et al. 2017: 120.
 * gregori. Tetramorium staerckei var. gregori Kratochvíl, in Kratochvíl, et al. 1944: 66, fig. 7 (w.q.m.) CZECHOSLOVAKIA.
 * Subspecies of impurum: Bolton, 1995b: 408.
 * Junior synonym of impurum: Wagner, et al. 2017: 120.
 * penninum. Tetramorium caespitum var. penninum Santschi, 1927a: 54 (w.) SWITZERLAND.
 * Subspecies of caespitum: Novák & Sadil, 1941: 87 (in key); Bolton, 1995b: 412.
 * Junior synonym of impurum: Sanetra, et al. 1999: 321.