A new genus and species of Praeaulacidae (Hymenoptera: Evanioidea) from Upper Cretaceous Myanmar amber |
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| Affiliation: | 1. Key Lab of Insect Evolution and Environmental Changes, College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China;2. Paleontological Institute, Russian Academy of Sciences, 123, Profsoyuznayaul, Moscow 117997, Russia;3. Department of Palaeontology, Natural History Museum, Cromwell Road, London Sw7 5BD, UK;1. Department of Invertebrate Zoology and Parasitology, University of Gdańsk, 59, Wita Stwosza St., PL80-308 Gdańsk, Poland;2. Muséum National d''Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region;3. Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK;4. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China;3. Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences, Nanjing 210008, China;4. Steinmann Institute, University of Bonn, Bonn 53115, Germany;5. Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing, 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China;3. Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum National d''Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France;4. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing, 100101, China;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region;3. University of the Chinese Academy of Sciences, Beijing 100049, China;4. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Palaeontological Institute, Russian Academy of Sciences, 117868 Moscow, Russia;4. Natural History Museum, Cromwell Road, London SW7 5BD, UK;5. Zhejiang Museum of Natural History, Hangzhou 310014, China |
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| Abstract: | A new fossil praeaulacid wasp, Habraulacus zhaoi gen. et sp. nov., is described and figured from Upper Cretaceous Myanmar amber. The new genus is established based on the following characters: mesosoma stout, metasoma elongated ellipse with the first metasomal segment very thin and tubular (like a petiole), forewing with pterostigma long and narrow, and both veins Rs+M and 1m-cu very long, forming a long cell 1mcu. Species of Praeaulacidae demonstrate a distinct evolutionary trend, which consists of miniaturization, venational reduction and enlargement of pterostigma, and reduction of number of the antennal segments from the Jurassic to Cretaceous. However, except for the miniaturization, this hardly concerns Habraulacus. |
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| Keywords: | Fossil Apocrita Praeaulacinae |
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