A new species of Eusphalerum Kraatz, 1857 from the Eocene Baltic amber (Coleoptera, Staphylinidae, Omaliinae)

A new species of the genus Eusphalerum Kraatz, 1857 (Omaliinae) from the Eocene Baltic amber is described and illustrated: Eu. bukejsi Shavrin, sp.n. The specimen was studied using X-ray micro-computed tomography (mu CT), to obtain images of the habitus, body parts and aedeagus. Based on the shape of the aedeagus, it was compared with East Asian species of pollens and japonicum groups.

Automated summary

A new species of the genus Eusphalerum from the Eocene Baltic amber is described and illustrated, with the specimen studied using X-ray micro-computed tomography for detailed images. The shape of the aedeagus was compared with species from East Asian pollens and japonicum groups.