Ademosyne, Handlirsch, 1906

Yan, Evgeny V., Beutel, Rolf G. & Ponomarenko, Alexander G., 2017, Ademosynidae (Insecta: Coleoptera): A new concept for a coleopteran key taxon and its phylogenetic affinities to the extant suborders, Palaeontologia Electronica 5 (8), pp. 1-22 : 10-12

Ademosyne : Handlirsch, 1906, p. 402; Dunstan, 1924, p.11

Type species. Ademosyne major Handlirsch, 1906 Differential diagnosis. Protrochantins transverse, more than 3 times as wide as long; metacoxae more than four times as wide as long, slightly narrowing laterally.

Revised diagnosis. Head strongly retracted below pronotum. Anterior prosternal margin distinctly posterior to anterior margin of pronotum, distance about one third of pronotal length. Pronotum with bead, lacking protruding posterior angles. Pro- and mesocoxae oblique, transverse, wider than long. Protrochantins elongated, more than three times as wide as long.

Anterior half of longitudinal suture of metaventrite often obliterated. Metacoxal width more than four times exceeding length; metacoxae weakly narrowing laterally.

Visible abdominal sternites telescopically retractable within each other; first and fifth ventrites longer than others.

Species included. Ademosyne major ; A. kirgizica ; A. bacca ; A. elliptica .