Liometopum microcephalum

Liometopum microcephalum is a rare arboricolous ant, which forms large colonies of high ecological importance and ranks at the top position in the hierarchy of ant assemblages. Many aspects of the species' biology remain unknown due to its scattered occurrence and bad nest accessibility.

Distribution based on Regional Taxon Lists
Palaearctic Region: Albania, Austria, Balearic Islands, Bulgaria, Croatia, Czech Republic, Georgia, Greece, Hungary, Iran, Israel, Montenegro, Republic of Macedonia, Republic of Moldova, Romania, Russian Federation, Slovakia, Slovenia, Switzerland.

Nomenclature

 *  microcephalum. Formica microcephala Panzer, 1798: no. 1652 (m.) AUSTRIA. Mayr, 1861: 39 (w.q.). Combination in Liometopum: Mayr, 1861: 39. Senior synonym of austriaca: Mayr, 1861: 39. See also: Baroni Urbani, 1971c: 158; Atanassov & Dlussky, 1992: 189; Shattuck, 1994: 129; Del Toro, et al. 2009: 325.
 * austriaca. Formica austriaca Mayr, 1853a: 144 (w.) AUSTRIA. Junior synonym of microcephalum: Mayr, 1861: 39.