Colobopsis truncata

Colobopsis truncata is a common mediterranean zoogeographical element distributed mostly in southern and central Europe and in the southern part of eastern Europe, as well as occurring east as far as Kopet Dag, Iran (Radchenko 1997c, Suchocka et al. 2008) and south as far as Maghreb, Algeria (Rigato & Toni, 2011). It is a thermophilous species living exclusively arboreally in open habitats, orchards and light forests (Marko et al., 2009).

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).

This is a common species, recorded from all Greek provinces except Cyclades (Borowiec et al., 2022).

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

Nomenclature

 *  truncata. 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. Combination in Colobopsis: Ward, et al., 2016: 350. 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).

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