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Eotemnothorax glaesarius
| †Eotemnothorax glaesarius Temporal range: Priabonian, Late Eocene Baltic amber, Baltic Sea region | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Eotemnothorax |
| Species: | †E. glaesarius |
| Binomial name | |
| †Eotemnothorax glaesarius (Wheeler, W.M., 1915) | |
Wheeler (1915) described Leptothorax glaesarius based on a single worker from the collection of Königliche Bernsteinsammlung des Geologischen Instituts of Königsberg (Baltic amber), which is lost. The specimen Radchenko (2024) examined (MKHC F-414) matches Wheeler’s description well, but it was partly destroyed by polishing a piece of amber, and he hesitated to designate this specimen a neotype of E. glaesarius.
Identification
Eotemnothorax glaesarius is most similar to Eotemnothorax longaevus and Eotemnothorax punctatus and differs from them by the rounded dorsum of the petiolar node (instead cuneioform in the latter species).
Keys including this Species
Distribution
This taxon was described from Baltic amber, Baltic Sea region, Europe (Priabonian, Late Eocene) and is also known from Rovno amber, Baltic Sea region, Europe (Priabonian, Late Eocene) (Radchencko, 2024).
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †glaesarius. †Leptothorax glaesarius Wheeler, W.M. 1915h: 64 (w.) BALTIC AMBER (Eocene).
- Combination in Temnothorax: Bolton, 2003: 271.
- Combination in Eotemnothorax: Radchenko, 2024: 723.
Description
References
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 271, Combination in Temnothorax)
- Radchenko, A. 2024. Eotemnothorax gen. nov. (Hymenoptera: Formicidae) – A new ant genus from Late Eocene European ambers. Annales Zoologici 74(4), 717-752 (doi:10.3161/00034541anz2024.74.4.015).
- Wheeler, W.M. 1915i. The ants of the Baltic Amber. Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg 55: 1-142. (page 64, worker described)