Abstract
A new fossil genus and species of the family Endomychidae, Rhomeocalpsua torosa Li, Tomaszewska & Cai, gen. et sp. nov., is described and illustrated from the mid-Cretaceous Burmese amber. The new genus is characterised by the relatively elongate body, antennae composed of nine antennomeres with unique club morphology, unmodified pronotum, mesocoxal cavities broadly closed laterally, femora with deep and long grooves, and 3-3-3 tarsi. Detailed morphological comparisons between the Cretaceous fossils and extant relatives suggest that its unique character combination does not fit into any existing subfamilies of Endomychidae, Mycetaeidae, Eupsilobiidae or Anamorphidae.
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