白垩纪中期贾氏缅甸蚊蝎蛉(昆虫纲:长翅目)新材料
New materials of Burmobittacus jarzembowskii(Insecta:Macroptera)from the mid-Cretaceous
于佳淼 1张燕婕 1任东 1杨弘茹1
作者信息
- 1. 首都师范大学生命科学学院,北京 100048
- 折叠
摘要
蚊蝎蛉科(Bittacidae)最早的化石记录发现于三叠纪,在侏罗纪的多样性较高,而白垩纪则相对较低.本文基于白垩纪中期缅甸北部克钦琥珀中的4件保存完好的蚊蝎蛉科新标本,修订了缅甸蚊蝎蛉属(Burmobittacus Zhao,Bashkuev,Chen & Wang,2017)的属征,补充描述了贾氏缅甸蚊蝎蛉(Burmobittacus jarzembowskii Zhao,Bashkuev,Chen & Wang,2017)的头、翅基部和生殖器的特征,表明第2、3径脉融合脉(R2+3)与径分脉(Rs)长度的比例在种内存在明显差异.另外,编制了蚊蝎蛉科化石属级检索表,比较了中生代蚊蝎蛉科化石类群翅的差异.
Abstract
The earliest fossil records of Bittacidae can date back to the Triassic,with a higher diversity during the Jurassic,and lower diversity in the Cretaceous.This paper based on four well-preserved new specimens of Bittacidae from the mid-Cretaceous Kachin amber in Northern Myanmar(Hukawng Valley),revised the diagnosis of Burmobittacus Zhao,Bashkuev,Chen & Wang,2017,supplemented the features of head,the basal part of the wing,and genitalia of Burmobittacus jarzembowskii Zhao,Bashkuev,Chen & Wang,2017,indicated a significant difference in the intraspecific length ratio between radial sector(Rs)and R2+3.This paper also compiled a fossil genus-level key for the Bittacidae and compared the wing differences among fossil groups of Bittacidae from Mesozoic.
关键词
古昆虫/蚊蝎蛉科/白垩纪/琥珀/缅甸/种内变异Key words
ancient insects/Bittacidae/Cretaceous/amber/Myanmar/intraspecific variation引用本文复制引用
基金项目
国家自然科学基金重点国际(地区)合作研究项目(32020103006)
北京市属高校教师队伍建设支持项目(BPHR20220114)
出版年
2024
国家科技期刊平台
NSTL
万方数据