Radchenko, A., Dlussky, G.M.† & Perfilieva K.

Year: 2018


A new extinct ant genus (Hymenoptera: Formicidae: Myrmicinae) from the Late Eocene Rovno amber – a putative ancestor of the Leptothorax genus group

Journal: Myrmecological News

Volume: 27

Pages: 111-117

Type of contribution: Original Article

Supplementary material: No


A new genus and a new species of ant, Proleptothorax primitivus, are described based on two males from the Late Eocene Rovno amber of Ukraine. This genus is characterized by the antennae 13-segmented, with the funiculus filiform without an apical club, by the very short antennal scape, by the short and narrow, bidentate mandibles, and by the forewing with cell 3r closed. We consider these features as obvious plesiomorphies compared with Leptothorax mayR, 1855, Formicoxenus mayR, 1855, and Harpagoxenus FoRel, 1893 and assume that Proleptothorax could be regarded as a putative ancestor of the extant genera of the Leptothorax genus group.

Key words: Ants, palaeontology, Proleptothorax primitivus gen.n. et sp.n., new genus, new species, Late Eocene, Rovno amber, evolution.

Publisher: The Austrian Society of Entomofaunistics

ISSN: Print: 1994-4136 - Online: 1997-3500

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