Plagiolepis pygmaea

A widespread south-European species, with some related forms occurring in the Mediterranean region (Rigato & Toni, 2011).

Distribution based on Regional Taxon Lists
Palaearctic Region: Afghanistan, Andorra, Armenia, Austria, Balearic Islands, Belgium, Bulgaria, Canary Islands, China, Croatia, Czech Republic, France, Georgia, Germany, Gibraltar, Greece, Hungary, Iberian Peninsula, Israel, Italy, Malta, Montenegro, Portugal, Republic of Macedonia, Romania, Slovakia, Slovenia, Spain, Switzerland.

Nomenclature

 *  pygmaea. Formica pygmaea Latreille, 1798: 45 (w.q.) FRANCE. Schenck, 1852: 69 (m.); Wheeler, G.C. & Wheeler, J. 1953c: 135 (l.). Combination in Plagiolepis: Mayr, 1861: 43. Senior synonym of dufourii: Menozzi, 1925a: 19 (footnote); of obscuriscapus: Boer, 2008: 486. Current subspecies: nominal plus bulawayensis, mima, minu. See also: Stitz, 1939: 231; Kutter, 1977c: 185; Sharaf, Aldawood & Taylor, 2011: 207.
 * dufourii. Micromyrma dufourii Perris, 1878: 382 (w.) FRANCE. Junior synonym of Tapinoma erraticum: Dalla Torre, 1893: 165; Emery, 1913a: 40; Forel, 1915d: 43; of Plagiolepis pygmaea: Menozzi, 1925a: 19 (footnote).
 * obscuriscapus. Plagiolepis pygmaea var. obscuriscapus Santschi, 1923a: 137 (w.) ITALY. Stärcke, 1936: 278 (q.). Raised to species: Agosti & Collingwood, 1987a: 57. Junior synonym of pygmaea: Boer, 2008: 486.