Colobopsis truncata

An arboreal species common in Europe and the Maghreb (Rigato & Toni, 2011).

Identification
Ionescu-Hirsch (2009) - This is a small dimorphic species with a phragmotic “soldier”. The major worker has a cylindrical, abruptly truncate head. The minor worker has a rounded head and can be recognized by the straight frontal carina, antennal insertion close to the middle of the frontal carina, propodeum dorsum distinctly concave in lateral view, and by the petiole scale with acute summit in lateral view and indented dorsum in front view.

Distribution
Ionescu-Hirsch (2009) - Mostly southern and central Europe, also northwest Africa, Crimea, Caucasus, eastern Mediterranean, and the Middle East (Radchenko, 1997b).

Distribution based on Regional Taxon Lists
Palaearctic Region: Albania, Algeria, Andorra, Armenia, Austria, Balearic Islands, Bulgaria, Croatia, Czech Republic, Finland, France, Georgia, Germany, Greece, Hungary, Iberian Peninsula, Israel, Italy, Malta, Montenegro, Netherlands, Poland, Portugal, Republic of Macedonia, Republic of Moldova, Romania, Slovakia, Slovenia, Spain, Switzerland, Turkey, Turkmenistan, Ukraine.

Nomenclature

 *  truncatus. Formica truncata Spinola, 1808: 244 (q.) ITALY. Dufour & Perris, 1840: 49 (w.); Forel, 1874: 45 (s.w.); Mayr, 1861: 38 (w.q.); Emery, 1916b: 235 (m., in key). Combination in Colobopsis: Mayr, 1861: 38; in Camponotus (Colobopsis): Forel, 1893b: 435. Senior synonym of fuscipes: Emery & Forel, 1879: 449; Forel, 1915d: 73. See also: Kutter, 1977c: 207.
 * fuscipes. Formica fuscipes Mayr, 1853c: 280 (w.) AUSTRIA. Combination in Colobopsis: Mayr, 1861: 38. Junior synonym of truncatus: Emery & Forel, 1879: 449.

Worker
Ionescu-Hirsch (2009) - TL = 3.5–4.4, HL = 0.92–1.21, HW = 0.78–1.05, EL = 0.29–0.31, SL = 0.72–0.66, ML = 1.23–1.23, PW = 0.59–0.78, mTbL = 0.66–0.62, hTbL = 0.82–0.78 (n = 10).