Minute clubbed beetles with cephalic horns in mid-Cretaceous amber from northern Myanmar(Coleoptera:Monotomidae)

• 作者: Yan-Da Li Diying Huang Chenyang Cai
• 来源期刊: 动物分类学报
• 年，卷（期）: 2022,（2）
• 所属期刊栏目: Original article
• 页码范围: 155-164
• 页数: 10页
• 语种: 中文
• DOI: 10.11865/zs.2022206

摘要

A new fossil species of Monotomidae,Cretakarenni shaoi Li&Cai,sp.nov.,is reported from the mid-Cretaceous Burmese amber.The new species is attributed to the extinct genus Cretakarenni Peris&Delclòs,2015 primarily based on the paired setose projections on head,apparently 1-segmented antennal club,and transverse procoxal cavities with exposed trochantins.It differs from the previously reported C.birmanicus Peris&Delclòs from the same deposit in the more narrowly separated projections(cephalic horns)on vertex and the absence of elytral absutural lines.Our discovery of a new monotomid species from the mid-Cretaceous amber highlights the palaeodiversity and morphological disparity of the family in the late Mesozoic.