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An enigmatic beetle with affinity to Lamingtoniidae in mid-Cretaceous amber from northern Myanmar (Coleoptera: Cucujoidea)

Authors
  • Li, Yan-Da1, 2, 3
  • Leschen, Richard A. B.4
  • Liu, Zhen-Hua5
  • Huang, Di-Ying1, 2
  • Cai, Chen-Yang1, 2, 3
  • 1 State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing , (China)
  • 2 Center for Excellence in Life and Paleoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing , (China)
  • 3 School of Earth Sciences, University of Bristol, Bristol , (United Kingdom)
  • 4 Manaaki Whenua Landcare Research, New Zealand Arthropod Collection, Auckland , (New Zealand)
  • 5 Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou , (China)
Type
Published Article
Journal
Frontiers in Ecology and Evolution
Publisher
Frontiers Media SA
Publication Date
Nov 03, 2022
Volume
10
Identifiers
DOI: 10.3389/fevo.2022.972343
Source
Frontiers
Keywords
Disciplines
  • Ecology and Evolution
  • Original Research
License
Green

Abstract

An enigmatic cucujiform beetle, Alloterocucus atratus Li, Leschen, Liu, and Cai gen. et sp. nov., is reported from mid-Cretaceous Burmese amber. The character combination of the new fossil is not completely consistent with any of the known cucujoid or erotyloid families. Based on our phylogenetic analyses, Alloterocucus is assigned to Cucujoidea and may be allied to Lamingtoniidae, which contains a single Australasian genus in the extant fauna. Alloterocucus shares with Lamingtoniidae a similar habitus and a series of characters, including the absence of postocular constriction, 3-segmented antennal club, externally open procoxal cavities, laterally open mesocoxal cavities, exposed pro- and mesotrochantins, and the absence of epipleural fovea and pronotal setose cavities, but differs from extant Lamingtoniidae in its apically truncate terminal maxillary palpomeres, 5-5-4 tarsi in male and absence of distinct dorsal punctation. Zoobank registration [https://zoobank.org/], identifier [111CE15E-5B49-4154-9E4A-7B3A738C6D2A].

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