Gesomyrmex flavescens

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

Dlussky Wappler Wedmann 2009-15Gesomyrmex-flavescens.jpg

No formal diagnosis or comparative comments were provided when this species was described, only a key for determination. According to Dlussky et al. (2009), the diagnostic character for this taxon is said to be a straight anterior clypeal margin, but this trait is ambiguous in the fossil specimen. Aria et al. (2023) consider this species as species inquirenda.

Identification

Gesomyrmex breviceps, Gesomyrmex flavescens and Gesomyrmex pulcher have relatively disparate morphometrics and are not easily distinguished, complicated by the lack of original diagnoses (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)

Distribution

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

Castes

Nomenclature

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

  • flavescens. †Gesomyrmex flavescens Dlussky, Wappler & Wedmann, 2009: 11, figs. 3B, 6J (q.) GERMANY.

Description

References