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      Revision of fossil Metretopodidae (Insecta, Ephemeroptera) in Baltic amber – Part 4: Description of two new species of Siphloplecton Clemens, 1915, with notes on the new S. jaegeri species group and with key to fossil male adults of Siphloplecton

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          Abstract

          Abstract

          The Siphloplecton jaegeri species group is established here for three extinct species, namely for the earlier described Siphloplecton jaegeri Demoulin, 1968, and for two new species from Eocene Baltic amber, Siphloplecton landolti sp. nov. and Siphloplecton studemannae sp. nov. Based on the well-preserved specimens of these species, a diagnosis is provided for the newly established species group. Representatives of the S. jaegeri species group are characterized by the presence of large, medially contiguous eyes, stout pointed setae along the outer margin of the foretibia, three intercalaries in the cubital field of the forewing, and elongated penis lobes, which are apically triangular or rounded, medially contiguous, and with a V-shaped cleft apically. Further new specimens of the S. jaegeri species group are documented that cannot be attributed to species level due to their poor preservation. Finally, a key to male adults of fossil species of Siphloplecton is given.

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          Most cited references 5

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          The Phylogenetic System of Ephemeroptera

           Nikita Kluge (2004)
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            Revision of fossil Metretopodidae (Insecta: Ephemeroptera) in Baltic amber – Part 3: Description of two new species of Siphloplecton Clemens, 1915, with notes on the re-discovered lectotype of Siphloplecton macrops (Pictet-Baraban & Hagen, 1856).

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              Revision of fossil Metretopodidae (Insecta: Ephemeroptera) in Baltic amber – Part 2: Description of a new species ofMetretopusEaton, 1901

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2019
                10 December 2019
                : 898
                : 1-26
                Affiliations
                [1 ] Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branišovská 31, 37005 České Budějovice, Czech Republic Biology Centre of the Czech Academy of Sciences České Budějovice Czech Republic
                [2 ] Department of Invertebrate Zoology and Hydrobiology, University of Łódź, Banacha 12/16, 90237, Łódź, Poland University of Łódź Łódź Poland
                [3 ] Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, 10115, Berlin, Germany Museum für Naturkunde Berlin Germany
                [4 ] Department of Entomology, Stuttgart State Museum of Natural History, Rosenstein 1, 70191, Stuttgart, Germany Stuttgart State Museum of Natural History Stuttgart Germany
                Author notes
                Corresponding author: Arnold H. Staniczek ( arnold.staniczek@ 123456smns-bw.de )

                Academic editor: L. Pereira-da-Conceicoa

                Article
                47118
                10.3897/zookeys.898.47118
                6917629
                Roman J. Godunko, Christian Neumann, Arnold H. Staniczek

                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.

                Funding
                Funded by: Deutscher Akademischer Austauschdienst 501100001655 http://doi.org/10.13039/501100001655
                Categories
                Research Article
                Ephemeroptera
                Insecta
                Metropodidae
                Biogeography
                Faunistics & Distribution
                Identification key
                Palaeontology
                Taxonomy
                Cenozoic
                Europe

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