New fossil evaniids (Hymenoptera,Evanioidea) from the Yixian Formation of western Liaoning,China |
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| Affiliation: | 1. Department of Entomology, China Agricultural University, Beijing 100193, China;2. College of Life Sciences, Capital Normal University, Beijing 100048, China;1. State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou 510275, China;2. Australian National Insect Collection, CSIRO, GPO Box 1700, Canberra, ACT 2601, Australia;3. College of Life Sciences, Capital Normal University, Xisanhuanbeilu 105, Haidian District, Beijing, 100048, China;1. Borissiak Palaeontological Institute, Russian Academy of Sciences, ul. Profsoyuznaya 123, Moscow 117647, Russia;2. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Rd, Nanjing 210008, China;1. Department of Entomology, China Agricultural University, Beijing 100193, China;2. College of Life Sciences, Capital Normal University, Beijing 100048, China |
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| Abstract: | A new species, Procretevania mitis sp. nov., is described from the Early Cretaceous of Yixian Formation at the Huangbanjigou, Beipiao City, western Liaoning, China. Based on new morphological data, a key of Procretevania Zhang and Zhang, 2000 is provided. Forewing venations, body and forewing lengths, localities and horizons of various genera of Evaniidae in amber and compression fossils are summarized for comparison. Evaniidae have a high degree of venational diversity, while more complex forewing venations for Lebanevania and Mesevania suggest that they may represent the stem group of the Evaniidae. High diversity of Evaniidae in the Early Cretaceous implies that Evaniidae might have radiated before the Early Cretaceous. Furthermore, comparison of body and forewing lengths of amber and fossil genera indicate that the amber specimens have relatively smaller size. |
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| Keywords: | Evaniidae New species Early Cretaceous Huangbanjigou |
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