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

作　　者：于佳淼 张燕婕 任东[1] 杨弘茹 YU Jiamiao;ZHANG Yanjie;REN Dong;YANG Hongru(College of Life Sciences,Capital Normal University,Beijing 100048)

机构地区：[1]首都师范大学生命科学学院,北京100048

出　　处：《首都师范大学学报（自然科学版）》2024年第4期20-28,共9页Journal of Capital Normal University：Natural Science Edition

基　　金：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)。

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(R_(2+3))与径分脉(R_(S))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。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(R_(S))and R_(2+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 

分 类 号：Q969[生物学—昆虫学]