Differentiating Iberoformica and Formica (Serviformica) with Description of the Sexual Castes of Formica (Serviformica) gerardi Bondroit, 1917 stat. rev.

A list of morphological characters to separate Iberoformica and Formica (Serviformica) (F. fusca species group) is provided. Sexual forms of Formica gerardi Bondroit are described based on Iberian material and reinstated into the subgenus Serviformica based on genetic data and morphological characters. The status of †F. horrida Wheeler, 1915 is assessed.