中国早白垩世脉翅目螳蛉科化石的新发现——孙氏逸仙蛉  

Yatsenia suni gen.et sp.nov.,a new genus and species of Mantispidae(Insecta,Neuroptera)from the Early Cretaceous of China

作　　者：师超凡 杨强 任东[3] Chaofan Shi;Qiang Yang;Dong Ren(School of Earth Sciences and Engineering,Guangdong Provincial Key Laboratory of Geological Processes and Mineral Resources,Sun Yat-sen University,Zhuhai 519080,China;School of Life Sciences,Guangzhou University,Guangzhou 510006,China;College of Life Sciences,Capital Normal University,Beijing 100048,China)

机构地区：[1]中山大学地球科学与工程学院,广东省地质过程与矿产资源探查重点实验室,珠海519080 [2]广州大学生命科学学院,广州510006 [3]首都师范大学生命科学学院,北京100048

出　　处：《科学通报》2024年第18期2547-2552,共6页Chinese Science Bulletin

基　　金：国家自然科学基金(42072012,32070425,42288201);广东省自然科学基金(2021A1515012508)资助。

摘　　要：脉翅目螳蛉科昆虫化石记录较为丰富,在中生代以绝灭亚科Mesomantispinae和Doratomantispinae的属种最多,其中中螳蛉亚科Mesomantispinae分布时代更早,集中于中侏罗世至早白垩世.本文记述了采集自我国辽宁省北票市黄半吉沟下白垩统义县组地层的螳蛉科中螳蛉亚科一新属新种,孙氏逸仙蛉Yatsenia suni gen. et sp. nov.该新属种与同亚科其他属在前翅脉序和翅斑上具显著差异,包括Sc与R1融合于近翅中部, CuP双分叉, 1A栉状分叉等特征,揭示了白垩纪螳蛉更为丰富的形态与物种多样性.Mantispidae(mantid lacewings)are a family of Neuroptera with ample fossil records extended back to the Early Jurassic.Mantid lacewings are characterized by their elongated prothoraces and raptorial forelegs.The family are divided into six subfamilies,i.e.,Mesomantispinae,Doratomantispinae,Symphrasinae,Drepanicinae,Calomantispinae,and Mantispinae.Among them,Mesomantispinae and Doratomantispinae are extinct and only found in the Mesozoic,accounting for the majority of fossil mantispid genera and species,while the other four subfamilies have extant representatives,totally including more than 400 species.The extant mantid lacewings are distributed worldwide except the Antarctic.The fossil mantid lacewings have been found in multiple strata from the Jurassic to the Neogene.The oldest mantispid,Liassochrysa stigmatica Ansorge and Schlüter,1990,was collected from the Lower Jurassic in Germany,but only preserved with one forewing.Clavifemora rotundata Jepson et al.,2013,from the Middle Jurassic of China,is the earliest mantispid preserved with raptorial forelegs,which possessed stout forecoxae and forefemora,rows of short spines on the ventral of forefemora.Most genera from the Jurassic to the Early Cretaceous were assigned to Mesomantispinae.In the Late Cretaceous,24species of 11 genera have been descirbed from the Burmese ambers,many of which belong to the Doratomantispinae.In the Cenozoic,most fossil mantid lacewings were assigned to the extant subfamilies and genera.Mesomantispinae,as the earliest subfamily,have been found in strata from the Middle Jurassic to the Early Cretaceous in China,Russia and Kazakhstan.The raptorial forelegs of this subfamily presented the primitive stage of their evolutionary history,distinguished with elongated and stout forecoxae,stout foremora with developed spines.But the major long femoral spine,which is commonly present in the extant mantid lacewings,was absent in the Mesomantispinae.The subfamily are also distinct in their forewing venation,i.e.,recurrent humeral veinlet present,the

关 键 词：化石 昆虫 螳蛉 热河生物群 中生代 

分 类 号：Q915[天文地球—古生物学与地层学] P534.53[生物学—古生物学]