Formica macrognatha

Radchenko et al. (2021) question the placement of this taxon within the genus Formica. They note that F. macrognatha is quite small (ca. 3.7 mm), with short legs (“Pedes breves”), and its head is large and triangular (“Caput… magnum, trigonum”), precluding its placement in Formica.

Distribution
This taxon was described from.

Nomenclature

 * † macrognatha. †Formica macrognatha Presl, 1822: 198 (no caste or sex given) BALTIC AMBER (Eocene).