Deakin University
Browse

File(s) under permanent embargo

Extinct and extant Pacific Trogossitidae and the evolution of Cleroidea (Coleoptera) after the Late Triassic biotic crisis

Version 2 2024-06-03, 14:31
Version 1 2021-02-01, 10:25
journal contribution
posted on 2024-06-03, 14:31 authored by J Kolibáč, M Bocakova, JK Liebherr, T Ramage, Nicholas PorchNicholas Porch
Abstract A new subgenus of Tenebroides, Polynesibroides subgen. nov., is established for six potentially extinct beetles, Tenebroides atiu, T. moorea, T. raivavae, T. rimatara, T. tubuai and T. mihiura spp. nov., described from the Cook, Austral and Society Islands based on subfossil fragments, and the extant T. tahiti sp. nov. from the island of Tahiti, Society Islands. Here we present the first detailed time-scaled phylogeny of the superfamily Cleroidea inferred from our four-gene dataset, including T. tahiti. Bayesian tip-dating, incorporating 17 fossils, estimated that Cleroidea appeared at the end of the Triassic (~210 Mya). The split of Biphyllidae + Byturidae + Phloiophilidae was reconstructed at ~204 Mya, followed by Early Jurassic separation of Trogossitidae (~200 Mya), Acanthocnemidae (~197 Mya), stem Cleridae–Thanerocleridae–Chaetosomatidae (~194 Mya), Peltidae, Lophocateridae, Decamerinae and the melyrid lineage (~191 Mya). Trogossitidae diversified by separation of Kolibacia (~136 Mya) in the Cretaceous, followed by parting Temnoscheila + Nemozoma and Airora + Tenebroides lineages (~113 Mya). Tenebroides radiated ~75 Mya and T. tahiti diverged from Panamanian taxa in the Middle Eocene (~40 Mya). Fourteen morphological characters of Pacific trogossitids were analysed. Parallelodera, including the Panamanian species, is nested within Tenebroides being sister to Polynesibroides. Therefore, Parallelodera is classified as a subgenus of Tenebroides. Tenebroides fairmairei is placed in the subgenus Parallelodera. A Neotropical origin for Parallelodera and Polynesibroides is inferred.

History

Journal

Zoological Journal of the Linnean Society

Volume

191

Pagination

846-882

Location

Oxford, Eng.

ISSN

0024-4082

eISSN

1096-3642

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2020, Linnean Society of London & 2021, Zoological Journal of the Linnean Society

Issue

3

Publisher

OXFORD UNIV PRESS