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.
|Translated title of the contribution||An apterous scelionid wasp in mid-Cretaceous Burmese amber (Hymenoptera: Scelionidae)|
|Number of pages||7|
|Journal||Comptes Rendus - Palevol|
|State||Published - 1 Jan 2017|
Bibliographical noteFunding Information:
Support for this project was provided by the National Basic Research Program of China (2012CB821903) to H.D.-Y.; through collaborative project, “Biodiversity: Origin, Structure, Evolution and Geology” granted by the Lebanese University to D.A.; partially by U.S. National Science Foundation grant (DEB-1144162) to M.S.E.; and through a doctoral fellowship from the Fondo para la Innovación, Ciencia y Tecnología, Peru, to M.A. This work was also supported by the Visiting Professor Program at King Saud University, Deanship of Scientific Research. We are also grateful to two anonymous reviewers for their helpful comments on an earlier version of the manuscript.