|diversity_link = :category:List of species ...older group names have been replaced by newer names, and new arrangements of species, but the older groups remain in use by some myrmecologists and not

|diversity_link = :category:List of species ...the genus. We are remarkably well informed about this genus, both in terms of its taxonomy and its biology.

..., 1967). Similar to all red wood ants, this species displays a high degree of morphological variation. |comment1=''Formica aquilonia'' nest with hundreds of males on its surface. Photo by Sanja M. Hakala.

|diversity_link = :category:List of species ...d microhabitats and the sheer size of the genus makes any characterisation of their biology challenging. Nests are built in the ground, in rotten branche

...(Kubota, 1965) and the short-winged mold beetle {{Associate|Relationship = host|Associate Type = Staphylinid beetle|Associate Taxon = ''Kigatrodes gracilis ...and the myrmecophytic [[Lepidoptera|butterfly]] {{Associate|Relationship = host|Associate Type = butterfly|Associate Taxon = ''Lampides argyrognomon''|Asso

...s and in Achaia it has been observed inside humid fir forest and in border of mountain meadows, pastures and fir forest (Borowiec & Salata, 2021). ...d bright red; gaster and ocellar region of head brownish black. Proportion of dark to red varies from north to south with some arctic samples having prop

...orkers. Nests are smaller than with ''[[Formica rufa]]'' and other species of this group and nest materials are coarser. A polygynous form with many grou ...], [[Sweden]], [[Switzerland]], [[Türkiye]], [[Ukraine]], [[United Kingdom of Great Britain and Northern Ireland]].<br />

...trees, in a single locality in mountains specimens were observed on trunks of fir (Borowiec & Salata, 2021). ...t vertical basal face. From above the pronotum is much wider than the rest of the alitrunk which narrows to half its width posteriorly. Mandibles are lar

...sts. Queens start new colonies by [[Social Parasitism|parasitizing]] nests of other ants. ...cattered coarse punctures: coarse and fine punctures widely spaced on disc of first gaster tergite. Funiculus segments two and three always less than twi

In Korea this species is common in mountainous highlands of more than 1000 meters (Dong & Kim, 2019). In Greece it is a mountain specie reported only from Ionian Islands: Ainos Mts. of Cephalonia. It prefers shadow mountain coniferous forests. In Achaia and Ae

...s are formed and foraging tracks are frequently covered by surface tunnels of earth. This species is aggressive and readily attacks other ants. Nests are ...at of ''L. emarginatus''. The male is best distinguished by the possession of abundant standing pilosity on the appendages combined with the "''niger'' t