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内蒙古侏罗纪魔蜂科(膜翅目:冠蜂总科)昆虫新材料

NEW MATERIAL OF EPHIALTITIDAE(INSECTA:HYMENOPTERA:STEPHANOIDEA)FROM THE MIDDLE-UPPER JURASSIC OF INNER MONGOLIA,CHINA

【Author in Chinese】 丁明张琦王贺张青青雷晓洁张海春

【Author】 DING Ming;ZHANG Qi;WANG He;ZHANG Qing-qing;LEI Xiao-jie;ZHANG Hai-chun;Zhejiang Museum of Natural History;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences;University of Chinese Academy of Sciences;

【Institution】 浙江自然博物馆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大学

【Abstract in Chinese】 描述了产于内蒙古宁城中-上侏罗统道虎沟化石层的两块魔蜂科雌蜂化石。根据其中一块标本建立1新种——拉氏冠腹魔蜂(Stephanogaster rasnitsyni Ding and Zhang sp.nov.),归入魔蜂亚科冠腹魔蜂属。另外一块标本归入原翅蜂亚科柔弱卡魔蜂(Karataus exilis Zhang,Zhang and Rasnitsyn,2014),这是首次发现该种的雌性标本,进一步证明了卡魔蜂属(Karataus)存在明显的性双型现象。道虎沟生物群和哈萨克斯坦晚侏罗世卡拉套生物群中魔蜂科有很大的相似性,表明这两个生物群的时代可能相差不远。

【Abstract】 Two female insects assigned to Ephialtitidae(Hymenoptera)are described herein from the Middle-Upper Jurassic Daohugou Beds of Ningcheng County,Inner Mongolia,China.Based on one specimen,a new species,Stephanogaster rasnitsyni sp.nov.,is established and attributed to the subfamily Ephialtitinae,and the other specimen is assigned to Karataus exilis Zhang,Zhang and Rasnitsyn, 2014 in the Symphytopterinae.The two specimens are housed in the Zhejiang Museum of Natural History.Of all the strata bearing ephialtitid wasps in China,the Daohugou Beds yield the most diverse ephialtitids consisting of at least 24 species(including undetermined species)within 9genera(Rasnitsyn and Zhang,2004,2010;Ding et al.,2013;Li et al.,2013,2015;Zhang Qi et al.,2014;Li and Shih,2015;this study),less diverse than in the Upper Jurassic Karabastau Formation in Karatau,southern Kazakhstan(more than 40 species within 12 genera)(Rasnitsyn,1975 b,1977;Rasnitsyn and Zhang,2010).However,the Daohugou Biota and the Karatau Biota show a similar ephialtitid composition with 6 common genera including Stephanogaster,Leptephialtites,Asiephialtites, Karataus,Symphytopterus and Karataviola,indicating that these two biotas are probably close in age.The genus Karataus is sexually dimorphic with hind femora much swollen in males but just incrassate in females,which is further confirmed by the new material described herein and assigned to K.exilis.

【Fund】 国家自然科学基金(41272013);国家重点基础研究发展规划项目(2012CB821900);IGCP632项目联合资助
  • 【CLC code】Q915
  • 【Downloads】66
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