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      A new sawfly of Megalodontesidae (Insecta, Hymenoptera, Pamphilioidea) with pectinate antennae from the Early Cretaceous of China

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          Abstract

          Abstract

          A new sawfly of Megalodontesidae , Jibaissodes peichenae sp. nov., is described from the Lower Cretaceous Yixian Formation of Northeastern China. It is established mainly based on the pectinate antenna comprising 42 flagellomeres and the proximal 28 bearing apical rami, which gradually shorten in length toward the apex of the flagellum. The pterostigma of the forewing is infuscated apically and on the hind wing, vein 1-Rs is nearly equal to 1r-m and slightly shorter than 1-M. The first tergum is widely excised posteriorly and roundly protruding laterally alike in Megalodontes . This find supports that pectinate antennae in extant sawflies of Megalodontesidae originated at least during or before the Early Cretaceous.

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          World Catalog of Symphyta (Hymenoptera)

          ANDREAS TAEGER, STEPHAN M. BLANK, ANDREW D. LISTON (2010)
          The first complete World Catalog of sawflies (Hymenoptera, suborder Symphyta) for over 100 years is presented. It contains references to the original descriptions and provides brief distributional data for 803 genera, 8353 species (123 with two or more subspecies) and 161 subspecies in addition to the nominal subspecies. 15245 proposed names are treated, including replacement names, infrasubspecific names and nomina nuda, of which only 22 could not be checked in the original publications. Current taxonomic placement of genera and species and occurrence in zoogeographic regions are indicated. The list of names contains 31245 name combinations, variant spellings and family-group names. The authors attempted to consult all publications with taxonomic content referring to Symphyta that have appeared up to 31.12.2009. The 2960 cited references include all those that are known to contain original descriptions of taxa. Short biographical data and portraits of 168 symphytologists as well as images of representatives of extant sawfly taxa are included.
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            Convergent evolution of ramified antennae in insect lineages from the Early Cretaceous of Northeastern China.

            Taiping Gao, Chungkun Shih, Conrad Labandeira … (2016)
            Antennae are important, insect sensory organs that are used principally for communication with other insects and the detection of environmental cues. Some insects independently evolved ramified (branched) antennae, which house several types of sensilla for motion detection, sensing olfactory and chemical cues, and determining humidity and temperature levels. Though ramified antennae are common in living insects, occasionally they are present in the Mesozoic fossil record. Here, we present the first caddisflies with ramified antennae, the earliest known fossil sawfly, and a scorpionfly also with ramified antennae from the mid-Lower Cretaceous Yixian Formation of Northeastern China, dated at 125 million years ago (Ma). These three insect taxa with ramified antennae consist of three unrelated lineages and provide evidence for broad structural convergence that historically has been best demonstrated by features such as convergent mouthparts. In addition, ramified antennae in these Mid-Mesozoic lineages likely do not constitute a key innovation, as they are not associated with significantly increased diversification compared with closely related lineages lacking this trait, and nor are they ecologically isolated from numerous, co-occurring insect species with unmodified antennae.
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              Lower Cretaceous origin of long-distance mate finding behaviour in Hymenoptera (Insecta)

              André Nel, Lars Krogmann, Michael Engel … (2013)
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                Author and article information

                Contributors
                Taiping Gao:
                ORCID: https://orcid.org/0000-0002-8118-8708
                Journal
                Journal ID (nlm-ta): Zookeys
                Journal ID (iso-abbrev): Zookeys
                Journal ID (publisher-id): 2
                Journal ID (index): urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                Journal ID (aggregator): urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                Title: ZooKeys
                Publisher: Pensoft Publishers
                ISSN (Print): 1313-2989
                ISSN (Electronic): 1313-2970
                Publication date Collection: 2019
                Publication date (Electronic): 02 December 2019
                Volume: 893
                Pages: 115-123
                Affiliations
                [1 ] College of Life Sciences and Academy for Multidisciplinary Studies, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China Capital Normal University Beijing China
                [2 ] Key Laboratory of Forest Protection, State Forestry Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry Beijing China
                [3 ] Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013-7012, USA Smithsonian Institution Washington United States of America
                [4 ] Palaeontological Institute, Russian Academy of Sciences, 117868, Moscow, Russia Palaeontological Institute, Russian Academy of Sciences Moscow Russia
                [5 ] The Natural History Museum, Cromwell Road, London SW7 5BD, UK The Natural History Museum London United Kingdom
                [6 ] Institute of Apicultural Research of CAAS, No. 1 Beigou Xiangshan, Haidian District, Beijing 100093, China Institute of Apicultural Research of CAAS Beijing China
                Author notes
                Corresponding author: Taiping Gao ( tpgao@ 123456cnu.edu.cn )

                Academic editor: S. M. Blank

                Author information
                https://orcid.org/0000-0002-8118-8708
                Article
                Publisher ID: 38512
                DOI: 10.3897/zookeys.893.38512
                PMC ID: 6901609
                SO-VID: 4d8dd69b-da3c-4149-80b8-e203246e9f55
                Copyright © Yimo Wang, Mei Wang, ChungKun Shih, Alexandr P. Rasnitsyn, Jun Yao, Dong Ren, Taiping Gao
                License:

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                Date received : 24 July 2019
                Date accepted : 09 November 2019
                Funding
                Funded by: National Natural Science Foundation of China 501100001809 http://doi.org/10.13039/501100001809
                Categories
                Subject: Research Article
                Subject: Hymenoptera
                Subject: Megalodontoidea
                Subject: Palaeontology
                Subject: Palaeozoology
                Subject: Cretaceous
                Subject: China

                ScienceOpen disciplines: Animal science & Zoology
                Keywords: ramified antennae, symphyta ,taxonomy,yixian formation,animalia,hymenoptera,pamphilioidea
                Data availability:
                ScienceOpen disciplines: Animal science & Zoology
                Keywords: ramified antennae, symphyta , taxonomy, yixian formation, animalia, hymenoptera, pamphilioidea

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