白垩纪缅甸琥珀中小型花蚤一新种(鞘翅目:花蚤科)及对花蚤科的分类学修订  

A NEW SMALL-BODIED MORDELLID BEETLE(COLEOPTERA:MORDELLIDAE)FROM MID-CRETACEOUS BURMESE AMBER AND TAXONOMIC REVISION

作　　者：包童 BAO Tong(Institutfur Geowissenschaften und Meteorologie,Rheinische Friedrich-Wilhelms-Universitdt Bonn,Nussalle 8,53115 Bonn,Germany;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Centre for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,China)

机构地区：[1]Institut für Geowissenschaften und Meteorologie,Rheinische Friedrich-Wilhelms-Universitat Bonn,Nussalle 8,53115 Bonn,Germany [2]现代古生物学和地层学国家重点实验室,中国科学院南京地质古生物研究所,中国科学院生物演化与环境卓越创新中心,南京210008

出　　处：《古生物学报》2020年第1期112-118,共7页Acta Palaeontologica Sinica

基　　金：中国科学院战略性先导科技专项(XDB26000000,XDA19050101);国家自然科学基金项目(41622201,41688103)联合资助。

摘　　要：根据产自缅甸北部白垩纪中期克钦琥珀中的一块小型花蚤化石标本,建立1新种--小多刺花蚤(Multispinus parvus sp.nov.),归于花蚤科(Mordellidae)。同时,对缅甸琥珀中已发现的花蚤和泛花蚤进行了重新观察和研究,重点分析了其形态学特征并认真考虑了相关分类学依据,将短尾花蚤科(Apotomouridae)修订为花蚤科之下的短尾花蚤亚科(Mordellidae:Apotomourinae)。短尾花蚤中普遍存在的臀锥完全不发育,不可作为区分于花蚤科的衍征。白垩纪中期琥珀中发现的花蚤化石类群体型均小,这也许与白垩纪中期生态环境和栖息地被子植物花朵形态有关。A new small-bodied beetle,Multispinus parvus sp.nov.,is described from the mid-Cretaceous Burmese amber and assigned to Mordellidae(Coleoptera:Tenebrionoidea).Based on a careful re-examination of the Mordellidae and mordellid-like beetles from the Burmese amber and analysis of their morphological characters,the family Apotomouridae is reduced herein to a subfamily of Mordellidae as Apotomourinae.The absence of a pygidium in Apotomourinae cannot be regarded as a synapomorphy.All known mordellids found in the mid-Cretaceous ambers are all small in size,which may be related to the mid-Cretaceous ecological environment and the early angiosperm flower morphology in their habitat.

关 键 词：甲虫 花蚤科 缅甸琥珀 白垩纪 分类学 古生态 

分 类 号：Q915.8[天文地球—古生物学与地层学]