侏罗纪中阶普草蛉的修订及中生代草蛉科的演化  

A revision of Mesypochrysa intermedia (Neuroptera: Chrysopidae) and the evolution of Chrysopidae in the Mesozoic

作　　者：陈培超 魏丽馨 毛有明 师超凡 王小兵 杨强 CHEN Pei-chao;WEI Li-xin;MAO You-ming;SHI Chao-fan;WANG Xiao-bing;YANG Qiang(School of Life Sciences,Guangzhou University,Guangzhou 510006,China;Ningxia Geological Museum,Yinchuan 750011,China;School of Earth Sciences and Engineering,Sun Yat-sen University,Guangzhou 510275,China;Chongzhou Tianyan Museum,Chengdu 611230,China)

机构地区：[1]广州大学生命科学学院,广州510006 [2]宁夏回族自治区地质博物馆,银川750011 [3]中山大学地球科学与工程学院,广州510275 [4]崇州天演博物馆,成都611230

出　　处：《古生物学报》2021年第3期401-414,共14页Acta Palaeontologica Sinica

基　　金：第三批宁夏青年科技人才托举工程项目(TJGC2018099);宁夏自然科学基金项目(2020AAC03462);国家自然基金(32070425,42072012)联合资助。

摘　　要：普草蛉属MesypochrysaMartynov,1927隶属于脉翅目草蛉科昆虫中的绝灭亚科篱草蛉亚科,是该科中最为古老的属。该属内种间的主要区分特征有前翅亚前缘基横脉0–2支;Rs支脉7–26支;m-cu横脉2、3支;CuA+MP末端4–7栉状分支;1A和2A二分叉或不分叉。该属的中阶普草蛉Mesypochrysa intermedia Panfilov, 1980鉴定特征主要为前翅亚前缘基横脉1支;Rs约14分支;具1m-cu横脉;CuA+MP末端6栉状分支;1A和2A不分叉。该种此前已发现多块标本,均为前翅,仅有一块归于中阶普草蛉(近似种)Mesypochrysacf.intermedia的残缺标本NIGP 161886保存有后翅。本文基于在中国内蒙古自治区赤峰市宁城县道虎沟村中侏罗统九龙山组地层中新发现的保存有近乎完整前后翅的标本,补充修订了中阶普草蛉的种征,并对中阶普草蛉(包括近似种)标本存在的问题,普草蛉属与中生代其他属的差异,以及该属内各物种的鉴定特征进行了讨论。The genus Mesypochrysa Martynov, 1927(Neuroptera: Chrysopidae: Limaiinae) is the oldest genus in the subfamily Limaiinae. The species of this genus can be identified by the numbers of basal subcostal crossveins(0–2), the branches of Rs(7–26), m-cu crossveins(2, 3), the pectinate branches of CuA+MP(4–7), and the pattern of forking of 1 A and 2 A(forked or not) in the forewing. Mesypochrysa intermedia Panfilov, 1980 is characterized by the presence of one basal subcostal crossvein in the forewing;Rs with about 14 branches;the presence of 1 m-cu crossvein;CuA+MP with 6 distal pectinate branches;and 1 A, 2 A not being forked. Many specimens of this species have been found, but most of them are preserved with only forewings, except one specimen of Mesypochrysa cf. intermedia(NIGP 161886) which has an incomplete hind wing. A new specimen with nearly complete forewings and hind wings of this species was collected from the Middle Jurassic Jiulongshan Formation in Daohugou Village, Ningcheng County, Chifeng City, Inner Mongolia, China.Based on observation of this specimen, we revise the diagnosis of Mesypochrysa intermedia. The recorded specimens of M. intermedia, the differences between the genus Mesypochrysa and other genera of the Mesozoic, as well as the characteristics of each species of Mesypochrysa are also discussed in detail.

关 键 词：昆虫 草蛉科 中生代 中侏罗世 九龙山组 

分 类 号：Q915.8[天文地球—古生物学与地层学]