About Formica truncorum Fabricius, 1804
For the ant species Formica truncorum Fabricius, 1804, morphological characteristics include a grey-brown gaster, and bright yellow-red head and thorax. Smaller workers are typically darker in color. The species can be differentiated from other members of the genus Formica by small erect setae that cover the entire body. Worker ants range in size from 3.5 to 9.0 mm. This species has a wide distribution across multiple regions of the world, including northern Japan, the Jura Mountains, and many areas extending from Italy to Norway. Colonies of this ant are often polygynous and frequently polydomous, meaning a single colony occupies multiple separate nests. Colonies are found along woodland borders, where the ants construct their nests inside tree stumps.
