Archeonesia eocena Tribull, Pankowski & Colombo, 2021

Tribull, Carly Melissa, Pankowski, Madeline V. & Colombo, Wesley Dondoni, 2021, A new genus and species of Pristocerinae (Hymenoptera, Bethylidae) from upper Eocene Baltic amber with a review of conspecific association from insect fossils, Journal of Hymenoptera Research 85, pp. 119-133 : 119

† Archeonesia eocena Tribull, Pankowski & Colombo sp. nov.

Description.

Male holotype (Figs 1 - 4 ). Same as the genus, except for the following features: body length 4.0 mm. Mandible pentadentate. Palpal formula 5:3. Genitalia not visible.

Female allotype (Figs 1 - 3 , 5 ). Same as the genus, except for the following features: body length 3.30 mm. Mandible not unidendate, either bidendate or tridendate, but obscured by bubbles in resin. Palps obscured. Metasoma polished.

Type material.

Holotype, deposited at the AMNH Invertebrate Zoology Collection (specimen catalogue number AMNH_IZC 00361788). Two complete flat wasps are embedded in amber measuring about 21 mm × 11 mm. There are numerous bubbles, but no other syninclusions.

Etymology.

The species epithet Archeonesia eocena represents the geological epoch the species is known from.

Stratigraphic horizon.

Priabonian, 33.9 to 37.7 million years ago ( Cohen et al. 2020), upper Eocene.

Figures

Figure 1. † Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov. A dorsal habitus of male holotype and female allotype B ventral habitus of male holotype and female allotype. Scale bars: 1 mm (A, B).

Figure 3. † Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov. Illustration of ventral habitus of male holotype and female allotype. Scale bar: 1 mm.

Figure 4. † Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov., male holotype A head, ventro-frontal view B metasoma, ventral view C prothorax and mesothorax, dorsal view D mesosoma, ventral view E wings, dorsal view. Scale bars: 500 μm (C); 1 mm (A, B, D, E).

Figure 5. † Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov., female allotype A habitus, dorsal view B habitus, ventral view C head, ventro-lateral view D eye, with red arrow pointing to lower margin. Scale bars: 650 μm (D), 1 mm (A-C).