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Myrmica damzeni
| †Myrmica damzeni Temporal range: Bartonian, Middle to Late Eocene Baltic amber, Baltic Sea region | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Myrmicini |
| Genus: | Myrmica |
| Species: | †M. damzeni |
| Binomial name | |
| †Myrmica damzeni Radchenko, 2023 | |
Photo Gallery
Radchenko (2023), Figure 4. Myrmica dictyosa, worker, holotype: (A) body, dorsal view; (B) scape; Myrmica damzeni, worker, holotype: (C) body, lateral view; Myrmica saxonica, worker, holotype: (D) body, dorsal view; (E) head, dorso-lateral view; (F) waist and propodeum, dorsolateral view. Scale bars: A, C, D – 1 mm, B, E, F – 0.5 mm.
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Identification
Meso- and metatibiae without spur; eyes located approximately at midlength of sides of head; scape gradually and not strongly curved at base, without any angle, lobe or carina (similar to modern Myrmica gallienii); mesosoma long and low; petiole long and low; propodeal spines directed mainly backward (seen in profile) and feebly divergent (seen from above).
For differences from Myrmica longispinosa, Myrmica rudis, Myrmica intermedia, Myrmica eocenica, Myrmica electrina and Myrmica dictyosa see those species.
Myrmica damzeni is clearly distinguished from Myrmica saxonica by the absence of tibial spurs, the longer petiole, pointed upper lateroventral corners of the head, and by the shape of the propodeal spines, which are thin and straight, but massive and somewhat curved inward in M. saxonica.
Keys including this Species
Distribution
This taxon was described from Baltic amber, Baltic Sea region, Europe (Bartonian, Middle to Late Eocene).
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †damzeni. Myrmica dictyosa Radchenko, 2023: 640, fig. 4A, B, tables 1, 2 (w.) POLAND (Baltic Amber, Eocene).
Type Material
- Holotype worker, complete specimen, Baltic amber, No. JDC 9928 (SIZK).
Type locality: Poland, Baltic amber, late Eocene, Priabonian age, 37.8-33.9 Ma.