Abstract
ABSTRACT Elektrocateres rappsilberi gen. et sp. nov. is described from Bitterfeld or Saxonian amber. It is the first representative of the superfamily Cleroidea (Coleoptera) recorded in this amber, from which only 10 families of beetles were known until now. The new genus and species was studied using classical stereomicroscopy, as well as digital microscopy and synchrotron-radiation-based micro-computed tomography. The fossil is related to the rare extant monotypic genera Trichocateres Kolibáč, 2010 and Carinicateres Kolibáč, 2021 from tropical forests of Southeastern Asia. It is assumed that Elektrocateres rappsilberi gen. et sp. nov. would be predatory, hunting other arthropods on tree branches and trunks; however, its mouthparts are probably still on halfway between herbivory or fungivory and predatory.
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