Two new kateretid beetle species (Coleoptera: Kateretidae) with specialized antennal scapes in males from mid-Cretaceous Kachin amber

IF 1.9 3区地球科学 Q1 GEOLOGY

Cretaceous Research Pub Date : 2024-01-29 DOI:10.1016/j.cretres.2024.105848

Qian Zhao , David Peris , Jia Liu , Diying Huang , Chenyang Cai

引用次数: 0

Abstract

Kateretidae is a beetle family with 15 reported fossil species, four of them with specialized antennal scape. Specialized scape represents a rare form of sexual dimorphism in Kateretidae. Here we report two new species with a special scape in males of Protokateretes Zhao, Huang and Cai, 2023, and one female individual of an unnamed species of Protokateretes. The discovery of new species provides a supplementary diagnosis of Protokateretes, and increases the biodiversity of the fossil genus. The high diversity of species in Protokateretes provides new insights into sexual dimorphism of Kateretidae in mid-Cretaceous, enriching the knowledge of potential courtship strategy of kateretid beetles in the late Mesozoic.

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白垩纪中期克钦琥珀中发现的两个雄性具有特化触角的甲虫新种（鞘翅目：甲虫科

甲虫科（Kateretidae）是一个甲虫家族，据报道有 15 个化石物种，其中 4 个物种具有特化的触角。特化的触角是甲虫科中一种罕见的性二态形式。在此，我们报告了两个具有特殊触角的新种，雄性个体为赵，黄和蔡，2023 年发现的 Protokateretes，雌性个体为一个未命名的 Protokateretes 种。新物种的发现为 Protokateretes 的诊断提供了补充，并增加了该化石属的生物多样性。Protokateretes物种的高度多样性为研究白垩纪中期甲虫的性二型提供了新的视角，丰富了对中生代晚期甲虫潜在求偶策略的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cretaceous Research 地学-地质学

CiteScore

4.10

自引率

19.00%

发文量

235

审稿时长

12 weeks

期刊介绍： Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.

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