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<p>Fossil beetles preserved in amber provide exceptional insights into their evolutionary history. This study reports the discovery of <i>Toxesbium kundratai</i> Li, Philips &amp; Cai gen. et sp. nov., the first definitive representative of the subfamily Ernobiinae (Ptinidae) from mid-Cretaceous Kachin amber of northern Myanmar. <i>Toxesbium</i> can be recognized within Ernobiinae mainly by the short antennomere 3 and the presence of longitudinal striae on the elytra. <i>Actenobius magneoculus</i> Peris et al. from the Early Cretaceous San Just amber is transferred to Ernobiinae, and tentatively placed in the extant genus <i>Ochina</i>, as <i>Ochina magneoculus</i> (Peris et al.) comb. nov.</p>

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Toxesbium gen. nov., the first definitive member of Ernobiinae from mid-Cretaceous amber of northern Myanmar (Coleoptera: Ptinidae)

  • 期刊论文

  • 发表日期：

    2025年3月2日

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  • Yan-Da Li,
  • T. Keith Philips,
  • Di-Ying Huang,
  • Chen-Yang Cai

摘要

Fossil beetles preserved in amber provide exceptional insights into their evolutionary history. This study reports the discovery of Toxesbium kundratai Li, Philips & Cai gen. et sp. nov., the first definitive representative of the subfamily Ernobiinae (Ptinidae) from mid-Cretaceous Kachin amber of northern Myanmar. Toxesbium can be recognized within Ernobiinae mainly by the short antennomere 3 and the presence of longitudinal striae on the elytra. Actenobius magneoculus Peris et al. from the Early Cretaceous San Just amber is transferred to Ernobiinae, and tentatively placed in the extant genus Ochina, as Ochina magneoculus (Peris et al.) comb. nov.