Temnothorax nigriceps

Distribution based on Regional Taxon Lists
Palaearctic Region: Andorra, Austria, Belgium, Bulgaria, Croatia, Czech Republic, France, Georgia, Germany, Greece, Hungary, Iberian Peninsula, Montenegro, Netherlands, Poland, Republic of Macedonia, Romania, Slovakia, Slovenia, Spain, Switzerland.

Nomenclature

 *  nigriceps. Leptothorax nigriceps Mayr, 1855: 441 (w.) AUSTRIA. Forel, 1874: 87 (q.); Bondroit, 1920b: 304 (q.m.); Finzi, 1939: 90 (m.); Hauschteck, 1962: 219 (k.). Combination in Temnothorax: Bolton, 2003: 271. Subspecies of tuberum: Forel, 1874: 85; Ruzsky, 1902d: 21; Bondroit, 1910: 497; Santschi, 1910e: 648; Stitz, 1914: 63; Ruzsky, 1925b: 45. Status as species: Bondroit, 1912: 351; Bondroit, 1918: 125; Müller, 1923: 93; Finzi, 1924b: 122; Finzi, 1939: 88; Boven, 1947: 179; Bernard, 1956a: 162; Baroni Urbani, 1971c: 118; Kutter, 1977c: 132; Boven, 1977: 105; Arnol'di & Dlussky, 1978: 542. Senior synonym of tuberonigriceps: Plateaux & Cagniant, 2912: 428. Current subspecies: nominal plus pyrenaeus.
 * tuberonigriceps. Leptothorax tuberum var. tuberonigriceps Forel, 1874: 88 (w.q.m.) SWITZERLAND. Junior synonym of nigriceps: Plateaux & Cagniant, 2912: 428.

Taxonomic Notes
Salata & Borowiec (2019): Results presented by Prebus (2017) suggest that the tuberum species group (sensu Cagniant and Espadaler 1997) and unifasciatus species group (sensu Bernard 1967) are paraphyletic. In both cases species groups were deﬁned based on West-Mediterranean taxa. Only two Greek members of the tuberum species group were included in analysis presented by Prebus (2017): Temnothorax nigriceps and Temnothorax unifasciatus and they created a separate cluster. Conﬁrmation, if the tuberum species group as deﬁned by us here is a natural, monophyletic group requires further studies.