Palaeodytes Ponomarenko 1987

Palaeodytes Ponomarenko, 1987 Type species: Palaeodytes sibiricus Ponomarenko, 1987. Notes: The genus is characterized by a short band-like pronotum and short head, together about 1 / 3 as long as the elytra; metacoxal plates longest in their lateral third (lateral of the external margins of the mesocoxae); lateral lobe of metaventrite half as long as metacoxal plate, median platforms of mesocoxae separated from the anterior margins of mesocoxae by a line, rounded apically and notched laterally; and dilated and flattened metatibia and metatarsus, the latter longer than the former. It differs from members of the subfamily Liadytiscinae in the shorter lateral lobe of the metaventrite, shorter and more dilated metatibia and metatarsus, and short pronotum; from Sinoporus it differs in the metaventrite with concave posterior margins of the lateral lobe (cf. Figs 17 and 23). The new species described below belongs to this genus according to the combination of two characters: metacoxa nearly twice as long as the lateral lobe of the metaventrite (LC/LV ��� 2), and absence of an elevated laterally limited area of the metaventrite.
Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 149, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466