Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Fikáček Martin, Prokop Jakub, Nel André
Acta Entomologica Musei Nationalis Pragae 50(2): 445-458, 2010
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Abstract: Two species assigned to the subtribe Hydrobiusina (Coleoptera: Hydrophilidae:
Hydrophilinae: Hydrophilini) from the Late Oligocene locality of Aixen-Provence
(France) are examined: Hydrobius obsoletus Heer, 1856 is removed from the
Hydrophiloidea and placed in Coleoptera incertae sedis based on the examination
of its holotype. Limnoxenus olenus sp. nov. is described from two well-preserved
fossil specimens. Based on a phylogenetic analysis combining the data of recent
and fossil species, L. olenus sp. nov. is supported as belonging to the
non-Hawaiian group of the genus Limnoxenus Motschulsky, 1853; it represents the
first known fossil record of the genus.
Key words: Coleoptera, Hydrophilidae, Hydrobiusina, fossil, Cenozoic, Oligocene, phylogenetic analysis, France
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