Emplastus obliquus

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Emplastus obliquus
Temporal range: Chattian, Oligocene Velikaya Kema, Primorye, Russia
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Genus: Emplastus
Species: E. obliquus
Binomial name
Emplastus obliquus
Perfilieva, 2022


The measurements of the wings in three species of this genus from Bolshaya Svetlovodnaya are somewhat smaller than in the new species, and this imprint also differs significantly from all known Emplastus in the shape of the mediocubital cell.

A characteristic feature of the new species is the shape of the mediocubital cell, which is reflected in its name. The greatest similarity, including the shape of the mcu cell, is observed with the wing venation of Britaneuretus anglicus (Antropov et al., 2014). Some Pachycondyla a have similar venation pattern; however, there are important differences: the proximal position of m-cu (the distal edge of the mcu cell) relative to the pterostigma and cu-a, which are located at a distance from the mcu cell, determine the affiliation of the wing to Dolichoderinae (or to the extinct genera of Aneuretinae, similarly to Britaneuretus).


This taxon was described from Velikaya Kema, Primorye, Russia (Chattian, Oligocene).



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

  • obliquus. †Emplastus obliquus Perfilieva, 2022: 415, fig. Plate 10, fig. 2 (q.) RUSSIA (Oligocene).

Type Material

  • Holotype. PIN, no. 3136/9, forewing imprint; Primorsky Krai, Terney District, Velikaya Kema Village; Lower Oligocene, Kizi Formation.