Gesomyrmex curiosus

AntWiki: The Ants --- Online
Gesomyrmex curiosus
Temporal range: Lutetian, Middle Eocene
Messel, Germany
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Gesomyrmecini
Genus: Gesomyrmex
Species: G. curiosus
Binomial name
Gesomyrmex curiosus
Dlussky, Wappler & Wedmann, 2009

Dlussky Wappler Wedmann 2009-15Gesomyrmex-curiosus.jpg

No formal diagnosis was provided when this species was described and only one head in frontal view is preserved. The only comparative comment was that the head ‘is very different from all other fossil and living species’ in this genus. In the absence of compelling diagnostic features for this species it should be considered a possible synonym of Gesomyrmex hoernesi (Aria et al., 2023).


  • Cephalic morphometrics of gynes for relevant fossil Gesomyrmex species. (a) Head length (HL). (b) Normalized head shape (head length/head width, HRN, squares) and normalized relative eye diameter (eye diameter/head length, HERN, diamonds). Abbreviations: flav., flavescens; germ., germanicus; hoern., hoernesi. (Aria et al., 2023, Fig. 4)


This taxon was described from Messel, Germany (Lutetian, Middle Eocene).



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

  • curiosus. †Gesomyrmex curiosus Dlussky, Wappler & Wedmann, 2009: 12, figs. 4C, 6H (q.) GERMANY.