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Issue: Vol. 9 No. 5: September 2026
Type: Article
Published: 2026-09-24
DOI: 10.11646/palaeoentomology.9.5.13
Page range: 450-459
Abstract views: 175
PDF downloaded: 8

Two new species of the extinct genus Aploceble Majer, 1998 (Coleoptera: Dasytidae: Rhadalinae) in Eocene Baltic amber

Institute of Systematics and Ecology of Animals; Siberian Branch of the Russian Academy of Sciences; Frunze 11; Novosibirsk 630091; Russia; Tomsk State University; Lenina prospekt 36; Tomsk 634050; Russia
Kaliningrad Regional Amber Museum; Marshal Vasilevskii square 1; Kaliningrad 236016; Russia
Institute of Life Sciences and Technologies; Daugavpils University; Vienības 13; Daugavpils LV-5401; Latvia
A.A. Borissiak Paleontological Institute; Russian Academy of Sciences; Profsoyuznaya 123; Moscow 117868; Russia
Institute of Systematics and Ecology of Animals; Siberian Branch of the Russian Academy of Sciences; Frunze 11; Novosibirsk 630091; Russia
Natural History Museum of Denmark; Universitetsparken 15; Copenhagen; Denmark
Coleoptera Dasytidae Rhadalinae dasytid beetles Paleogene Priabonian paleodiversity fossil resin new taxa

Abstract

Two new extinct species of dasytid beetles, Aploceble (Chalcoaploceble) rasnitsyni sp. nov. and A. (Ch.) majeri sp. nov. are described from late Eocene Baltic amber. Amongst the congeners, A. (Ch.) rasnitsyni sp. nov. differs in sparse, deep and smoothed punctation and narrow pronotum with distinctly explanate lateral sides, whereas A. (Ch.) majeri sp. nov. is distinguished by punctation of the upper surfaces lacking microsculpture, relatively long antennae reaching basal quarter of elytral length, apical palpomere widely triangular, and long epipleura reaching a middle of the abdominal ventrite III. New generic characters of male sex have been registered for the first time, namely lateral margin of the pronotum minutely crenulate and intermediate tarsomere 1 is distinctly flattened at pedal side, covered with white small adhesive setae, while strong dark bristles surround the sides of the tarsomere, which allow us to supplement the diagnosis of the genus Aploceble with new characters. A new record of Aploceble (Aploceble) kunowi Majer, 1998 is also presented, including additional characters not mentioned in the original description. Illustrations of the newly registered fossils and a key to all described species of the extinct genus Aploceble Majer, 1998 are provided.

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