Recent Southern Hemisphere Lamprimine Stag Beetle in Cretaceous Burmese Amber and Its Biogeographic Implications (Coleoptera: Lucanidae)

doi:10.3390/insects15090658

NIGPAS OpenIR

	Recent Southern Hemisphere Lamprimine Stag Beetle in Cretaceous Burmese Amber and Its Biogeographic Implications (Coleoptera: Lucanidae)
通讯作者	Li, Zhiqiang([email protected]) ; Cai, Chenyang([email protected])
	Yu, Yali 1; Liu, Zhenhua 1; Li, Zhiqiang 1; Cai, Chenyang2
	2024-09-01
发表期刊	INSECTS
卷号	15 期号:9 页码:13
摘要	Simple Summary Lucanidae (stag beetles) is a small family and one of the most ancient groups within the Scarabaeoidea superfamily. Most adult lucanids exhibit clear sexual dimorphism, with males often having impressive mandibles that are used in fierce competition for mates. Fossils of Lucanidae from the Mesozoic era are rare. In this study, we describe a new lucanid fossil, Prostreptocerus burmiticus Yu & Cai gen. et sp. nov., found in mid-Cretaceous Burmese (Kachin) amber, which shares similar features with the modern Lampriminae. This discovery marks the first fossil record of Lampriminae in mid-Cretaceous amber from northern Myanmar and is the oldest reliable record of the subfamily. The well-developed mandibles and curved claws of Prostreptocerus Yu & Cai provide additional evidence for sexual dimorphism and combat behavior in Mesozoic lucanids. This new taxon also enhances our understanding of early biodiversity and the biogeographic implications of stag beetles.Abstract A new stag beetle fossil, Prostreptocerus burmiticus Yu & Cai gen. et sp. nov., is described based on a single male specimen. This is the first representative of the subfamily Lampriminae (Coleoptera: Scarabaeoidea: Lucanidae) from mid-Cretaceous Burmese amber. The new species is distinctive among Lucanidae due to its well-developed, right-angled mandible, frons featuring a pair of large protuberances, a coarse and sparsely punctate elytral disc, and large tubercles on the humeri. Prostreptocerus Yu & Cai is placed within Lampriminae based on several key characteristics. Morphologically, it is most similar to the extant Streptocerus Fairmaire, 1850. The current distribution of Streptocerus and Lampriminae is primarily restricted to the Southern Hemisphere, suggesting that this lineage is ancient and existed on Gondwanaland, which has significant geographical implications. This discovery extends the fossil record of Lampriminae and provides additional evidence for the existence of sexual dimorphism and potential combat behavior in Mesozoic lucanids. Additionally, Electraesalopsis Bai, Zhang & Qiu, 2017, previously placed as Lucanidae incertae sedis, shares many characteristics with Prostreptocerus Yu & Cai and is also assigned to Lampriminae based on a suite of traits.
关键词	Lucanidae Lampriminae Burmese amber biogeographic implications evolution
DOI	10.3390/insects15090658
收录类别	SCI
语种	英语
关键词[WOS]	NORTHERN MYANMAR COLEOPTERA ; SEXUAL-DIMORPHISM ; SP NOV. ; PHYLOGENY ; EVOLUTION ; GEN. ; 1ST ; AGE
资助项目	National Natural Science Foundation of China ; GDAS Special Project of Youth Talent[2023GDASQNRC-0209] ; [32070471] ; [31702039] ; [42222201]
WOS研究方向	Entomology
WOS类目	Entomology
WOS记录号	WOS:001323399100001
项目资助者	National Natural Science Foundation of China ; GDAS Special Project of Youth Talent
出版者	MDPI
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44393
专题	中国科学院南京地质古生物研究所
通讯作者	Li, Zhiqiang; Cai, Chenyang
作者单位	1.Guangdong Acad Sci, Inst Zool, Guangdong Key Lab Anim Conservat & Resource Utiliz, Guangdong Publ Lab Wild Anim Conservat & Utilizat, Guangzhou 510260, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Yu, Yali,Liu, Zhenhua,Li, Zhiqiang,et al. Recent Southern Hemisphere Lamprimine Stag Beetle in Cretaceous Burmese Amber and Its Biogeographic Implications (Coleoptera: Lucanidae)[J]. INSECTS,2024,15(9):13.
APA	Yu, Yali,Liu, Zhenhua,Li, Zhiqiang,&Cai, Chenyang.(2024).Recent Southern Hemisphere Lamprimine Stag Beetle in Cretaceous Burmese Amber and Its Biogeographic Implications (Coleoptera: Lucanidae).INSECTS,15(9),13.
MLA	Yu, Yali,et al."Recent Southern Hemisphere Lamprimine Stag Beetle in Cretaceous Burmese Amber and Its Biogeographic Implications (Coleoptera: Lucanidae)".INSECTS 15.9(2024):13.