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Camponotus parvus
| †Camponotus parvus Temporal range: Chattian, Oligocene Velikaya Kema, Primorye, Russia | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Camponotus |
| Species: | †C. parvus |
| Binomial name | |
| †Camponotus parvus Perfilieva, 2022 | |
Note that while Boudinot et al. (2024) transferred all other fossil species of Camponotus to the genus Camponotites, this species was not included in their revision, presumably as this species was described after their manuscript was completed but before publication. Camponotus parvus should be treated in the same way as other fossil taxa Camponotus and considered to belong to Camponotites until its transfer can be formally proposed.
Identification
Perfilieva (2022) - Comparison of the features of the Camponotus wing imprints described to date is unproductive. First, the majority of the 28 fossil species (i.e., without the three imprints withdrawn from Camponotus in this paper) are described from females. Taking into account the pronounced sexual dimorphism in the size of sexual individuals in this genus, it is difficult to compare even the sizes of males and females from different localities. Since the wing length of the male C. parvus is 6 mm, it can be assumed that the size of females of this species may be 8–16 mm. Second, the standards of description and drawings of the majority of species described at the beginning of the last century do not allow comparison of the details of venation that are important for taxonomic purposes. Given these facts, our comparison shows that, among the known fossil representatives of Camponotus, there are three species with a relatively long 3r cell (Ir ca. 0.6): Camponotites curviansatus (female, FWL = 10 mm), Camponotites longus (female, FWL = 11.8 mm), and Camponotites gracilis (male, FWL = 10.4 mm). However, the latter is much larger than C. parvus. The synonymy of C. parvus with one of the two females of these two species cannot be ruled out without additional examination of the specimens.
In the study of the wings of extant representatives of Formicinae, it was shown that males have relatively wider wings than females of this subfamily, regardless of the absolute size of individuals (Perfilieva, 2007, 2021). From these data, I assume that the wing imprint of C. parvus belongs to a male.
Distribution
This taxon was described from Velikaya Kema, Primorye, Russia (Chattian, Oligocene).
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †parvus. †Camponotus parvus Perfilieva, 2022: 419, pl. 10, fig 6 (wing) RUSSIA (Oligocene).
Type Material
- Holotype. PIN, no. 3136/359, imprints and counter-imprints of the forewing of a male (?); Primorsky Krai, Terney district, Velikaya Kema Village; Lower Oligocene, Kizi Formation.
Description
References
- Boudinot, B.E., Bock, B.L., Weingardt, M., Tröger, D., Batelka, J., LI, D., Richter, A., Pohl, H., Moosdorf, O.T.D., Jandausch, K., Hammel, J.U., Beutel, R. G. 2024. Et latet et lucet: Discoveries from the Phyletisches Museum amber and copal collection in Jena, Germany. Deutsche Entomologische Zeitschrift 711, 111–176 (doi:10.3897/dez.71.112433).
- Perfilieva, K.S. 2022. Ants (Hymenoptera: Formicidae) from localities of the Russian Far East (Amgu, Velikaya Kema). Paleontological Journal, 56(4), 412–425 (doi:10.1134/s0031030122040086).