An apterous scelionid wasp in mid-Cretaceous Burmese amber (Hymenoptera: Scelionidae) |
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| Authors: | Michael S. Engel Diying Huang Abdulaziz S. Alqarni Chenyang Cai Mabel Alvarado Laura C.V. Breitkreuz Dany Azar |
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| Affiliation: | 1. Division of Entomology, Natural History Museum, University of Kansas, 1501 Crestline Drive, Suite 140, Lawrence, KS 66045, USA;2. Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, KS 66045, USA;3. Division of Invertebrate Zoology, American Museum of Natural History, Central Park West, 79th Street, New York, NY 10024, USA;4. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People''s Republic of China;5. Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, PO Box 2460, Riyadh 11451, Kingdom of Saudi Arabia;6. Lebanese University, Faculty of Sciences II, Department of Biology, PO Box 26110217, Fanar Matn, Lebanon |
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| Abstract: | 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. |
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| Keywords: | Aptery Cenomanian Myanmar Parasitoid Platygastroidea Taxonomy Absence d’ailes Cénomanien Myanmar Parasitoïde Platygastroidea Taxonomie |
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