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Gesomyrmex macrops
| †Gesomyrmex macrops Temporal range: Priabonian, Late Eocene Bolshaya Svetlovodnaya, Sikhote-Alin, Russia | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Gesomyrmecini |
| Genus: | Gesomyrmex |
| Species: | †G. macrops |
| Binomial name | |
| †Gesomyrmex macrops Dlussky, Rasnitsyn & Perfilieva, 2015 | |
No formal diagnosis was provided when this species was described. It was differentiated from other Svetlovodnaya species by the eye size, but from Gesomyrmex germanicus and Gesomyrmex pulcher by the shape of head margins; however, the latter are taphonomically deformed in these compression fossils and not reliable. Aria et al. (2023) consider it a species inquirenda and that it might be a form closely related to G. germanicus.
Identification
Gesomyrmex germanicus and G. macrops have similar head lengths and shapes (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)
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Distribution
This taxon was described from Bolshaya Svetlovodnaya, Sikhote-Alin, Russia (Priabonian, Late Eocene).
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †macrops. †Gesomyrmex macrops Dlussky, Rasnitsyn & Perfilieva, 2015: 138, fig. 13 (q.) RUSSIA (Eocene).
Description
References
- Aria, C., Jouault, C., Perrichot, V., Nel, A. 2023. The megathermal ant genus Gesomyrmex (Formicidae: Formicinae), palaeoindicator of wide latitudinal biome homogeneity during the PETM. Geological Magazine, 1–11 (doi:10.1017/s0016756822001248).
- Dlussky, G.M., Rasnitsyn, A.P. & Perfilieva, K.S. 2015. The ants (Hymenoptera: Formicidae) of Bolshaya Svetlovodnaya (Late Eocene of Sikhote-Alin, Russian Far East). Caucasian Entomoloigcal Bulletin, 11, 131-152.