The oldest fossil species of the genus Henoticus Thomson (Coleoptera: Cryptophagidae) from Eocene Baltic amber

Based on a single specimen in Eocene Baltic amber, Henoticus groehni sp. nov., the first extinct species of the genus, is described. The new species is studied and illustrated in detail using optical microphotography and X-ray micro-computed tomography. An additional congeneric specimen is discussed...

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Bibliographic Details
Published in:Historical biology 2024-09, Vol.36 (9), p.1777-1782
Main Authors: Bukejs, Andris, Lyubarsky, Georgy Yu, Alekseev, Vitalii I.
Format: Article
Language:English
Subjects:
Baltic amber
Cenozoic
Computed tomography
Cryptophaginae
Eocene
Extinct species
fossil resin
Henoticus
Microphotography
mycangia
New species
Palaeogene
Photography
X-ray micro-CT
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Description
Summary:Based on a single specimen in Eocene Baltic amber, Henoticus groehni sp. nov., the first extinct species of the genus, is described. The new species is studied and illustrated in detail using optical microphotography and X-ray micro-computed tomography. An additional congeneric specimen is discussed but not attributed to the species level. It is shown that exoskeletal depressions on the metaventrite with possible mycangia roles were present in Henoticus already in the Eocene. The possible involvement of the newly described species in dynamic of ecosystems at the early stages of natural pyrogenic succession in Eocene amber forests is hypothesised.
ISSN:0891-2963
1029-2381
DOI:10.1080/08912963.2023.2230992