AntWiki: The Ants --- Online
Temporal range: Bartonian, Middle to Late Eocene Baltic amber, Baltic Sea region
Stigmomyrmex venustus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Stigmomyrmex
Mayr, 1868
Type species
Stigmomyrmex venustus
2 fossil species
(Species Checklist)


Radchenko and Dlussky (2017) - The genus Stigmomyrmex is characterized by 10-segmented antennae with the distinct 3-segmented clubs, by the sharply pointed humeri, by the sessile, “gable-like” petiole (similar to that of the species of the modern genus Myrmecina), and by the lack of spurs on the middle and hind tibiae (Mayr 1888, Wheeler 1915). Its taxonomic position is still uncertain. Based on the 10-segmented antennae in Stigmomyrmex, Mayr (1868) compared it with the myrmicine genera Solenopsis, Carebara and Liomyrmex. Nevertheless, Stigmomyrmex well differs from the any other known extinct and extant genera of Myrmicinae, while Bolton (2003) placed it in the tribe Formicoxenini.


This taxon is known from Baltic amber, Baltic Sea region, Europe (Bartonian, Middle to Late Eocene) and Bitterfeld 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.

  • STIGMOMYRMEX [Myrmicinae: Crematogastrini]
    • Stigmomyrmex Mayr, 1868c: 95. Type-species: †Stigmomyrmex venustus, by subsequent designation of Wheeler, W.M. 1911f: 173.