The new Checklist of the Italian Fauna: Formicidae

I present the updated version of ‘Checklist Italian Fauna’ for what concerns ants (Insecta: Hymenoptera: Formicidae), which is part broader effort to produce an comprehensive checklist fauna about 25 years after first edition. The list fourth be published since 1916, and refers state art on November 2020. A simplified data set available as a supplementary file this paper, while full will accessible in regularly form from LifeWatch Italy Data Portal (https://dataportal.lifewatchitaly.eu/data). Compared previous by Poldi others, 1995, new one contains changes retrieved 86 literature sources, including 17 between 1921 1995 (which were missed checklist) 69 1996 These references add 50 species, 9 endemic well 68 nomenclatural 88 distribution novelties at regional level checklist. total 267 species subspecies belonging 7 ant subfamilies 42 genera are list. knowledge rapidly improving several fronts, such dynamism well-testified 10 articles dataset was compiled, included future update on-line further with extensive comments, detailed biogeographic consideration desirable soon situation stabilizes.