Formica trigona

AntWiki: The Ants --- Online
Formica trigona
Temporal range: Bartonian, Middle to Late Eocene Baltic amber, Baltic Sea region
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Formicini
Genus: Formica
Species: F. trigona
Binomial name
Formica trigona
Presl, 1822

Radchenko et al. (2021) question the placement of this taxon within the genus Formica. They note that F. trigona is too small for Formica (ca. 2.5 mm) with a triangular head (“Caput trigonium”) and long antennae (“antennae longitudine capitis et thoracis”). These features raise doubts that this species should even be included to the family Formicidae.



This taxon was described from Baltic amber, Baltic Sea region, Europe (Bartonian, Middle to Late Eocene).



The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • trigona. †Formica trigona Presl, 1822: 198 (no caste given) BALTIC AMBER (Eocene).