Application of geometric morphometric analyses to confirm two new species of Karatavitidae (Hymenoptera: Karatavitoidea) from northeastern China

SHIH, M.J.H., LI, L.F. & REN, D., April 2017. Application of geometric morphometric analyses to confirm two new species of Karatavitidae (Hymenoptera:Karatavitoidea) from northeastern China. Alcheringa 41, 499–508. ISSN 0311-5518

Two new species, Praeratavites rasnitsyni and Karatavites ningchengensis in the wasp family Karatavitidae, are described and illustrated. These specimens were collected from the uppermost Middle Jurassic Jiulongshan Formation at Daohugou Village in Inner Mongolia, China. Key venation characters, as measured by relative positions or length ratios, are summarized for all documented species of Karatavites and Praeratavites to facilitate morphological comparisons and assess whether the studied specimens are referable to new species. In addition, geometric morphometric analyses were conducted to confirm the distinction of the new species, which add to the diversity of these genera in the Middle Jurassic.

Matthew J.H. Shih* [mpshih88@gmail.com] Union County Magnet High School, Scotch Plains, NJ 07076, USA; Longfeng Li [fenger4499@163.com] and Dong Ren [rendong@mail.cnu.edu.cn] College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, PR China. *Also affiliated with: Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.     

New fossil helorid wasps (Hymenoptera,Proctotrupoidea) from the Early Cretaceous of China

Li, L., Shih, C. & Ren, D., February 2017. New fossil helorid wasps (Hymenoptera, Proctotrupoidea) from the Early Cretaceous of China. Alcheringa 41, 474–486. ISSN 0311-5518

Two new genera with two new species, Bellohelorus fortis and Novhelorus macilentus, and one new species, Protocyrtus parilis, within an established genus are described. Laiyanghelorus erymnus is re-described based on well-preserved specimens from the Lower Cretaceous Yixian Formation at Huangbanjigou Village, Beipiao City, Western Liaoning Province, China. Three taxonomic changes are proposed: Liaoropronia Zhang & Zhang is transferred from Roproniidae to Heloridae, and Novhelorus saltatrix (Shi, Zhao, Shih & Ren) and Spherogaster beipiaoensis (Shi, Zhao, Shih & Ren) are recombined. In addition, Gurvanhelorus mongolicus Rasnitsyn is tentatively considered a synonym of Protocyrtus validus Zhang & Zhang. A key to all genera of Heloridae is provided. All described helorid fossils with their distribution and geological age are summarized. Key forewing characters are compared for all fossil species to show the interspecific venational differences, which highlight a high level of genus-level diversity among Mesozoic helorids.

Longfeng Li [fenger4499@163.com], Chungkun Shih* [chungkun.shih@gmail.com] and Dong Ren [rendong@mail.cnu.edu.cn], College of Life Sciences, Capital Normal University, Beijing 100048, PR China. *Also affiliated with Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA. Received 20.4.2016; revised 19.9.2016; accepted 11.11.2016.     

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泛朝政化与史料运用偏差对边疆史地研究的影响——以明代“三征麓川”研究为例

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