An apterous scelionid wasp in mid-Cretaceous Burmese amber (Hymenoptera: Scelionidae)

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• 作者：Michael S. Engel^a ; ^b ; ^c ; ^{msengel@ku.edu} ; Diying Huang^d ; ^{dyhuang@nigpas.ac.cn} ; Abdulaziz S. Alqarni^e ; ^{alqarni@ksu.edu.sa} ; Chenyang Cai^d ; ^{caichenyang1988@163.com} ; Mabel Alvarado^a ; ^b ; Laura C.V. Breitkreuz^a ; ^b ; Dany Azar^f ; ^azar@mnhn.fr
• 关键词：Aptery ; Cenomanian ; Myanmar ; Parasitoid ; Platygastroidea ; Taxonomy
• 刊名：Comptes Rendus Palevol
• 出版年：2017
• 出版时间：January-February 2017
• 年：2017
• 卷：16
• 期：1
• 页码：5-11
• 全文大小：1693 K
• 卷排序：16

文摘

A remarkably specialized parasitoid wasp of the family Scelionidae (Platygastroidea) is described and figured from mid-Cretaceous (Cenomanian) amber of the Hukawng Valley in northern Myanmar. Geoscelio mckellari Engel and Huang, gen. et sp. nov., is unique for its combination of a compact body, 12 antennal flagellomeres, a 1-2-2 tibial spur formula, a distinct malar sulcus, deeply impressed notauli, complete reduction of the wings, and basal crenulae on the metasomal terga and sterna, among many other features, and is placed within a separate tribe, Geoscelionini Engel and Huang, trib. nov. This is the first flightless species of Platygastroidea known from the Mesozoic, and its affinities with other Mesozoic and extant lineages are discussed.