212 lines
32 KiB
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212 lines
32 KiB
XML
<document id="EC648F40FB1A3A51CCCFAB179A721522" ID-DOI="10.5852/ejt.2016.238" ID-GBIF-Dataset="8b57d1e6-b2b7-4229-912a-c042457efaaf" ID-ISSN="2118-9773" ID-Zenodo-Dep="3849874" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1590439951474" checkinUser="valdenar" docAuthor="Doczkal, Dieter, Radenković, Snežana, Lyneborg, Leif & Pape, Thomas" docDate="2016" docId="03EA327EFFFDEC0BFD3DE872FD91F8C4" docLanguage="en" docName="ejt-2016-238.pdf.imf" docOrigin="European Journal of Taxonomy 238" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Megatrigon sexfasciatus Johnson 1898" docType="treatment" docVersion="2" lastPageNumber="29" masterDocId="FFD34A06FFE1EC17FF9AEA71FFC7FFFF" masterDocTitle="Taxonomic revision of the Afrotropical genus Megatrigon Johnson, 1898 (Diptera: Syrphidae)" masterLastPageNumber="36" masterPageNumber="1" pageNumber="29" updateTime="1734461804313" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-3.0" zenodo-license-figures="CC-BY-3.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="7D167DEDB440E6C848D9ECC2EBD75599">Taxonomic revision of the Afrotropical genus Megatrigon Johnson, 1898 (Diptera: Syrphidae)</mods:title>
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<mods:namePart id="09284A3A435D5CD81D32CE58454D5A87">Doczkal, Dieter</mods:namePart>
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<mods:affiliation id="A186A44A1AFEA8C7815E287F5685F256">Bavarian State Collection of Zoology, Zoologische Staatssammlung, Munich, Germany.</mods:affiliation>
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<mods:nameIdentifier id="E4B5FC45D9DE2C87901AFC33B1698ACB" type="email">doczkal@zsm.mwn.de</mods:nameIdentifier>
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<mods:namePart id="FD3CF5DFA3C223AF9D7D0069D011ED4A">Radenković, Snežana</mods:namePart>
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<mods:affiliation id="5FC90A6924D9D103C50BA8AF1EED2C0B">University of Novi Sad, Department of Biology and Ecology, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia.</mods:affiliation>
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<mods:nameIdentifier id="3F57890EAB166CB028E436FB4D2ECB8F" type="email">snezana.radenkovic@dbe.uns.ac.rs</mods:nameIdentifier>
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<mods:namePart id="61B9C4D4B5ED0BB5DE2F78B409DFD0D9">Lyneborg, Leif</mods:namePart>
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<mods:affiliation id="97110C019704EC410713A33BB75CEABD">Natural History Museum of Denmark, Universitetsparken 15, 2100 Copenhagen, Denmark.</mods:affiliation>
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<mods:namePart id="7A385035AD6AA8536A6C43F4B8B98A71">Pape, Thomas</mods:namePart>
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<mods:affiliation id="8A4BD55D7C011D9930CA3307D0DD1DC9">Natural History Museum of Denmark, Universitetsparken 15, 2100 Copenhagen, Denmark.</mods:affiliation>
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<mods:nameIdentifier id="4C80B8122EA07B31AE1A108F01F7B1D5" type="email">tpape@snm.ku.dk&tpape@snm.ku.dk</mods:nameIdentifier>
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<mods:title id="DBD53739F1FA39AF6E93E712E44E9881">European Journal of Taxonomy</mods:title>
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<mods:date id="811D897CFA7A2C384C4B84E6CA91B35B">2016</mods:date>
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<mods:number id="AB47C6ECE98AE4EB4FCC28B8F5433573">2016-10-20</mods:number>
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<mods:number id="A50D7D43CA27214B1B09414A46CB8EE1">238</mods:number>
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<mods:identifier id="C49018CB8A990867CF95A85976C37E06" type="DOI">10.5852/ejt.2016.238</mods:identifier>
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<mods:identifier id="275D38D2025E15D857B0F92E0BE81D4E" type="ISSN">2118-9773</mods:identifier>
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<treatment id="03EA327EFFFDEC0BFD3DE872FD91F8C4" ID-DOI="http://doi.org/10.5281/zenodo.3854664" ID-GBIF-Taxon="164283049" ID-Zenodo-Dep="3854664" LSID="urn:lsid:plazi:treatment:03EA327EFFFDEC0BFD3DE872FD91F8C4" httpUri="http://treatment.plazi.org/id/03EA327EFFFDEC0BFD3DE872FD91F8C4" lastPageNumber="29" pageId="28" pageNumber="29" scope_class="Insecta" scope_family="Syrphidae" scope_order="Diptera" scope_subFamily="Eristalinae" scope_tribe="Merodontini">
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<subSubSection id="C359D0E3FFFDEC0BFD3DE872FC4CFDE2" box="[679,907,515,541]" pageId="28" pageNumber="29" type="nomenclature">
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<paragraph id="8BFC8368FFFDEC0BFD3DE872FC4CFDE2" blockId="28.[679,907,515,541]" box="[679,907,515,541]" pageId="28" pageNumber="29">
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<emphasis id="B9375F7AFFFDEC0BFD3DE872FC4CFDE2" bold="true" box="[679,907,515,541]" pageId="28" pageNumber="29">
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<taxonomicName id="4C43F8EBFFFDEC0BFD3DE872FCFDFDE2" ID-CoL="8CS9H" authority="Johnson, 1898" authorityName="Johnson" authorityYear="1898" box="[679,826,515,541]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
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<emphasis id="B9375F7AFFFDEC0BFD3DE872FCFDFDE2" bold="true" box="[679,826,515,541]" italics="true" pageId="28" pageNumber="29">sexfasciatus</emphasis>
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</taxonomicName>
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group
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</emphasis>
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</paragraph>
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</subSubSection>
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<subSubSection id="C359D0E3FFFDEC0BFF27E835FCBBFB62" pageId="28" pageNumber="29" type="diagnosis">
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<paragraph id="8BFC8368FFFDEC0BFF27E835FEF1FDA1" blockId="28.[189,310,580,606]" box="[189,310,580,606]" pageId="28" pageNumber="29">
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<heading id="D0B43404FFFDEC0BFF27E835FEF1FDA1" bold="true" box="[189,310,580,606]" fontSize="11" level="3" pageId="28" pageNumber="29" reason="3">
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<emphasis id="B9375F7AFFFDEC0BFF27E835FEF1FDA1" bold="true" box="[189,310,580,606]" pageId="28" pageNumber="29">Diagnosis</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BFC8368FFFDEC0BFF27E802FCBBFB62" blockId="28.[189,1399,627,1182]" pageId="28" pageNumber="29">
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Katepisternum with a posterodorsal and a small posteroventral pile patch, with or without a few short setae below the dorsal patch. The bare, flat posterior margin of tergite 1 (almost) entirely without microtrichia. Base of wing entirely microtrichiose or at most with small bare areas in cells br, bm, or cup. Anepisternal setae saw-like. Tarsomere 1 of protarsus anterodorsally without black spinules between the yellow setae. ♂: Sternite 4 with inflated caudal lobes, partly without microtrichia, and with a small accessory lobe close to the base of the lobes. Genital pouch large, more than half as wide as abdominal segment 4 at anterior margin. Posterior surstyle lobe (
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<figureCitation id="13789FEDFFFDEC0BFC35E937FBD3FC9E" box="[943,1044,838,865]" captionStart="Fig" captionStartId="30.[189,232,1894,1920]" captionTargetBox="[189,1398,875,1852]" captionTargetId="figure@30.[189,1398,875,1852]" captionTargetPageId="30" captionText="Fig. 13. Megatrigon spp., ♂ genitalia, lateral (A, F) and ventral (B–E, G) view (SEM). A–C. Megatrigon argenteus (Walker, 1852) comb. nov. D. M. magnicornis sp. nov. E. M. jacobi (Hervé-Bazin, 1913) comb. nov. F–G. Megatrigon sp. from the sexfasciatus group. Symbols: w = median surstyle; x = inner accessory lobe of median surstyle; y = posterior surstyle; z = subepandrial sclerite." figureDoi="http://doi.org/10.5281/zenodo.3849926" httpUri="https://zenodo.org/record/3849926/files/figure.png" pageId="28" pageNumber="29">Fig. 13E</figureCitation>
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:y, F:y) straight, without hook, directed medially. Median surstyle lobe (
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<figureCitation id="13789FEDFFFDEC0BFD02E918FCDAFC7B" box="[664,797,873,900]" captionStart="Fig" captionStartId="30.[189,232,1894,1920]" captionTargetBox="[189,1398,875,1852]" captionTargetId="figure@30.[189,1398,875,1852]" captionTargetPageId="30" captionText="Fig. 13. Megatrigon spp., ♂ genitalia, lateral (A, F) and ventral (B–E, G) view (SEM). A–C. Megatrigon argenteus (Walker, 1852) comb. nov. D. M. magnicornis sp. nov. E. M. jacobi (Hervé-Bazin, 1913) comb. nov. F–G. Megatrigon sp. from the sexfasciatus group. Symbols: w = median surstyle; x = inner accessory lobe of median surstyle; y = posterior surstyle; z = subepandrial sclerite." figureDoi="http://doi.org/10.5281/zenodo.3849926" httpUri="https://zenodo.org/record/3849926/files/figure.png" pageId="28" pageNumber="29">Fig. 13E, F</figureCitation>
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:w) setose along posterior half of ventral margin, on median surface without accessory lobe, without microtrichia, its posterior end extended, forming a wide rounded lobe directed posteromedially. Cerci (
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<figureCitation id="13789FEDFFFDEC0BFD4DE9C1FC86FC35" box="[727,833,944,970]" captionStart="Fig" captionStartId="16.[189,232,1825,1851]" captionTargetBox="[216,1374,263,1796]" captionTargetId="figure@16.[216,1374,263,1796]" captionTargetPageId="16" captionText="Fig. 10. Megatrigon spp., ♂ terminalia, epandrium, left lateral view. A. Megatrigon argenteus (Walker, 1852) comb. nov. B. M. argentifrons sp. nov. C. M. argentimaculatus sp. nov. D. M. magnicornis sp. nov. E. M. natalensis sp. nov. F. M. sexmaculatus sp. nov. G. M. apiformis sp. nov. H. M. cooksoni sp. nov. I. M. immaculatus sp. nov. J. M. ochreatus (Hull, 1964) comb. nov. K. M. tabanoides sp. nov. L. Megatrigon sp. from sexfasciatus group. M. M. nivalis. Symbols: x = ventral margin of median surstyle; y = posterior surstyle; z = cercus; w = subepandrial sclerite." figureDoi="http://doi.org/10.5281/zenodo.3849914" httpUri="https://zenodo.org/record/3849914/files/figure.png" pageId="28" pageNumber="29">Fig. 10L</figureCitation>
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:z) with pointed apex, with sclerotized and setose ventral surface. Subepandrial sclerite strongly curved, its anterior part almost parallel to the posterior part, a complete sclerotized bridge at its anterior end, the posterior part microtrichiose on full length, without a bulging ‘pad’ (
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<figureCitation id="13789FEDFFFDEC0BFE7DEE68FD90FBCB" box="[487,599,1049,1076]" captionStart="Fig" captionStartId="30.[189,232,1894,1920]" captionTargetBox="[189,1398,875,1852]" captionTargetId="figure@30.[189,1398,875,1852]" captionTargetPageId="30" captionText="Fig. 13. Megatrigon spp., ♂ genitalia, lateral (A, F) and ventral (B–E, G) view (SEM). A–C. Megatrigon argenteus (Walker, 1852) comb. nov. D. M. magnicornis sp. nov. E. M. jacobi (Hervé-Bazin, 1913) comb. nov. F–G. Megatrigon sp. from the sexfasciatus group. Symbols: w = median surstyle; x = inner accessory lobe of median surstyle; y = posterior surstyle; z = subepandrial sclerite." figureDoi="http://doi.org/10.5281/zenodo.3849926" httpUri="https://zenodo.org/record/3849926/files/figure.png" pageId="28" pageNumber="29">Fig. 13G</figureCitation>
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:z). Hypandrium (
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<figureCitation id="13789FEDFFFDEC0BFCBDEE68FC52FBCB" box="[807,917,1049,1076]" captionStart="Fig" captionStartId="17.[189,232,1758,1784]" captionTargetBox="[189,1399,340,1716]" captionTargetId="figure@17.[189,1399,340,1716]" captionTargetPageId="17" captionText="Fig. 11. Megatrigon spp., ♂ terminalia, hypandrium (A–M) and phallus (N), left lateral view. A. Megatrigon argenteus (Walker, 1852) comb. nov. B. M. argentifrons sp. nov. C. M. argentimaculatus sp. nov. D. M. magnicornis sp. nov. E. M. natalensis sp. nov. F. M. sexmaculatus sp. nov. G. M. apiformis sp. nov. H. M. cooksoni sp. nov. I. M. immaculatus sp. nov. J. M. ochreatus (Hull, 1964) comb. nov. K. M. tabanoides sp. nov. L. M. sp. from sexfasciatus group. M–N. M. nivalis (Hull, 1964) comb. nov. Symbol: x = hamus." figureDoi="http://doi.org/10.5281/zenodo.3849918" httpUri="https://zenodo.org/record/3849918/files/figure.png" pageId="28" pageNumber="29">Figs 11L</figureCitation>
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,
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<figureCitation id="13789FEDFFFDEC0BFC39EE6BFC11FBCB" box="[931,982,1050,1076]" captionStart="Fig" captionStartId="18.[189,232,1794,1820]" captionTargetBox="[189,1399,442,1753]" captionTargetId="figure@18.[189,1399,442,1753]" captionTargetPageId="18" captionText="Fig. 12. Megatrigon spp., ♂ terminalia, hypandrium, ventral view. A. Megatrigon argenteus (Walker, 1852) comb. nov. B. M. argentifrons sp. nov. C. M. argentimaculatus sp. nov. D. M. magnicornis sp. nov. E. M. natalensis sp. nov. F. M. apiformis sp. nov. G. M. cooksoni sp. nov. H. M. immaculatus sp. nov. I. M. ochreatus (Hull, 1964) comb. nov. J. M. tabanoides sp. nov. K. Megatrigon sp. from the sexfasciatus group. L. M. nivalis (Hull, 1964) comb. nov. Symbol: x = lateral ‘shoulders’." figureDoi="http://doi.org/10.5281/zenodo.3849922" httpUri="https://zenodo.org/record/3849922/files/figure.png" pageId="28" pageNumber="29">12K</figureCitation>
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) with a very wide base and lateral ‘shoulders’ between the wide proximal and the narrower distal part, apex slightly produced beyond ctenidium and blunt. Ejaculatory apodeme large.
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<specimenCount id="9D4548E1FFFDEC0BFC94EE11FCE1FB85" box="[782,806,1120,1146]" pageId="28" pageNumber="29" type="female">♀</specimenCount>
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: tergite 5 and sternite 5 with posteriorly directed setae, ovipositor with moderately thick setae, without tooth.
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</paragraph>
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</subSubSection>
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<subSubSection id="C359D0E3FFFDEC0BFF27EEB4FBD2FA87" pageId="28" pageNumber="29" type="taxon_list">
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<paragraph id="8BFC8368FFFDEC0BFF27EEB4FE4EFB21" blockId="28.[189,393,1220,1247]" box="[189,393,1220,1247]" pageId="28" pageNumber="29">
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<heading id="D0B43404FFFDEC0BFF27EEB4FE4EFB21" bold="true" box="[189,393,1220,1247]" fontSize="11" level="3" pageId="28" pageNumber="29" reason="3">
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<emphasis id="B9375F7AFFFDEC0BFF27EEB4FE4EFB21" bold="true" box="[189,393,1220,1247]" pageId="28" pageNumber="29">Included species</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BFC8368FFFDEC0BFF27EE85FAE1FAF1" blockId="28.[189,1318,1267,1400]" box="[189,1318,1267,1294]" pageId="28" pageNumber="29">
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<taxonomicName id="4C43F8EBFFFDEC0BFF27EE85FD59FAF1" authority="(Hull, 1964)" authorityName="Doczkal & Radenković & Lyneborg & Pape" authorityYear="2016" baseAuthorityName="Hull" baseAuthorityYear="1964" box="[189,670,1267,1294]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="flavimarginatus" status="comb. nov.">
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<emphasis id="B9375F7AFFFDEC0BFF27EE85FDC1FAF2" box="[189,518,1267,1293]" italics="true" pageId="28" pageNumber="29">Megatrigon flavimarginatus</emphasis>
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(
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<bibRefCitation id="EFD2FE99FFFDEC0BFD8CEE82FD51FAF1" author="Hull F. M." box="[534,662,1267,1294]" pageId="28" pageNumber="29" pagination="443 - 496" refId="ref16996" refString="Hull F. M. 1964. Diptera (Brachycera): Syrphidae. South African Animal Life 10: 443 - 496." type="journal article" year="1964">Hull, 1964</bibRefCitation>
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)
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</taxonomicName>
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<taxonomicNameLabel id="A204E201FFFDEC0BFD3CEE82FCE0FAF1" box="[678,807,1267,1294]" pageId="28" pageNumber="29" rank="species">comb. nov.</taxonomicNameLabel>
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(
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<taxonomicName id="4C43F8EBFFFDEC0BFCA2EE85FC67FAF2" authorityName="Meigen" authorityYear="1822" box="[824,928,1268,1293]" class="Insecta" family="Syrphidae" genus="Eumerus" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="genus">
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<emphasis id="B9375F7AFFFDEC0BFCA2EE85FC67FAF2" box="[824,928,1268,1293]" italics="true" pageId="28" pageNumber="29">Eumerus</emphasis>
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</taxonomicName>
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;
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<typeStatus id="54F83DCAFFFDEC0BFC2AEE82FBD0FAF2" box="[944,1047,1267,1293]" pageId="28" pageNumber="29" type="holotype">holotype</typeStatus>
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in BMNH, examined).
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</paragraph>
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<paragraph id="8BFC8368FFFDEC0BFF27EF66FADFFACE" blockId="28.[189,1318,1267,1400]" box="[189,1304,1302,1329]" pageId="28" pageNumber="29">
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFF27EF66FD55FACF" authority="(Herve-Bazin, 1913)" authorityName="Doczkal & Radenković & Lyneborg & Pape" authorityYear="2016" baseAuthorityName="Herve-Bazin" baseAuthorityYear="1913" box="[189,658,1302,1328]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="jacobi" status="comb. nov.">
|
||
<emphasis id="B9375F7AFFFDEC0BFF27EF66FE5FFACF" box="[189,408,1302,1328]" italics="true" pageId="28" pageNumber="29">Megatrigon jacobi</emphasis>
|
||
(Hervé-Bazin, 1913)
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A204E201FFFDEC0BFD03EF67FCDCFACE" box="[665,795,1302,1329]" pageId="28" pageNumber="29" rank="species">comb. nov.</taxonomicNameLabel>
|
||
(
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFCB6EF66FC53FACF" authorityName="Meigen" authorityYear="1822" box="[812,916,1303,1328]" class="Insecta" family="Syrphidae" genus="Eumerus" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B9375F7AFFFDEC0BFCB6EF66FC53FACF" box="[812,916,1303,1328]" italics="true" pageId="28" pageNumber="29">Eumerus</emphasis>
|
||
</taxonomicName>
|
||
;
|
||
<typeStatus id="54F83DCAFFFDEC0BFC3EEF67FBCCFACF" box="[932,1035,1302,1328]" pageId="28" pageNumber="29" type="holotype">holotype</typeStatus>
|
||
in MRAC, examined).
|
||
</paragraph>
|
||
<paragraph id="8BFC8368FFFDEC0BFF41EF4BFB93FAAB" blockId="28.[189,1318,1267,1400]" box="[219,1108,1337,1364]" pageId="28" pageNumber="29">
|
||
=
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFF69EF4BFD90FAAC" authority="Hull, 1964" authorityName="Hull" authorityYear="1964" box="[243,599,1337,1363]" class="Insecta" family="Syrphidae" genus="Eumerus" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="connexus">
|
||
<emphasis id="B9375F7AFFFDEC0BFF69EF4BFE17FAAC" box="[243,464,1338,1363]" italics="true" pageId="28" pageNumber="29">Eumerus connexus</emphasis>
|
||
<bibRefCitation id="EFD2FE99FFFDEC0BFE4DEF48FD90FAAC" author="Hull F. M." box="[471,599,1337,1363]" pageId="28" pageNumber="29" pagination="443 - 496" refId="ref16996" refString="Hull F. M. 1964. Diptera (Brachycera): Syrphidae. South African Animal Life 10: 443 - 496." type="journal article" year="1964">Hull, 1964</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicNameLabel id="A204E201FFFDEC0BFDF9EF4BFD0AFAAB" box="[611,717,1338,1364]" pageId="28" pageNumber="29">syn. nov.</taxonomicNameLabel>
|
||
(
|
||
<typeStatus id="54F83DCAFFFDEC0BFD41EF48FC83FAAC" box="[731,836,1337,1363]" pageId="28" pageNumber="29" type="holotype">holotype</typeStatus>
|
||
in BMNH, examined).
|
||
</paragraph>
|
||
<paragraph id="8BFC8368FFFDEC0BFF27EF2FFBD2FA87" blockId="28.[189,1318,1267,1400]" box="[189,1045,1373,1400]" pageId="28" pageNumber="29">
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFF27EF2FFD49FA88" authority="Johnson, 1898" authorityName="Johnson" authorityYear="1898" box="[189,654,1373,1399]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFF27EF2FFE1AFA88" box="[189,477,1373,1399]" italics="true" pageId="28" pageNumber="29">Megatrigon sexfasciatus</emphasis>
|
||
<bibRefCitation id="EFD2FE99FFFDEC0BFE7EEF2CFD49FA88" author="Johnson C. W." box="[484,654,1373,1399]" pageId="28" pageNumber="29" pagination="157 - 164" refId="ref17020" refString="Johnson C. W. 1898. Diptera collected by Dr. A. Donaldson Smith in Somaliland, eastern Africa. Proceedings of the Academy of Natural Sciences Philadelphia 50: 157 - 164. Available from http: // biodiversitylibrary. org / page / 26368835 [accessed 6 Sep. 2016]" type="journal article" year="1898">Johnson, 1898</bibRefCitation>
|
||
</taxonomicName>
|
||
(
|
||
<typeStatus id="54F83DCAFFFDEC0BFD07EF2CFCC1FA88" box="[669,774,1373,1399]" pageId="28" pageNumber="29" type="holotype">holotype</typeStatus>
|
||
in BMNH, examined).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C359D0E3FFFDEC0BFF27EFEEFD91F8C4" pageId="28" pageNumber="29" type="discussion">
|
||
<paragraph id="8BFC8368FFFDEC0BFF27EFEEFD91F8C4" blockId="28.[189,1399,1438,1851]" pageId="28" pageNumber="29">
|
||
Due to the lack of sufficient material, the species of the
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFCE9EFEFFBC6FA47" authorityName="Johnson" authorityYear="1898" box="[883,1025,1438,1464]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFCE9EFEFFBC6FA47" box="[883,1025,1438,1464]" italics="true" pageId="28" pageNumber="29">sexfasciatus</emphasis>
|
||
</taxonomicName>
|
||
group are not (re)described in the present account.
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFE2BEFB3FD4AFA24" authorityName="Doczkal & Radenković & Lyneborg & Pape" authorityYear="2016" baseAuthorityName="Herve-Bazin" baseAuthorityYear="1913" box="[433,653,1473,1499]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="jacobi" status="comb. nov.">
|
||
<emphasis id="B9375F7AFFFDEC0BFE2BEFB3FD4AFA24" box="[433,653,1473,1499]" italics="true" pageId="28" pageNumber="29">Megatrigon jacobi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A204E201FFFDEC0BFD0FEFB0FCDFFA23" box="[661,792,1473,1500]" pageId="28" pageNumber="29" rank="species">comb. nov.</taxonomicNameLabel>
|
||
(
|
||
<figureCitation id="13789FEDFFFDEC0BFCB2EFB0FC41FA23" box="[808,902,1473,1500]" captionStart="Fig" captionStartId="5.[189,232,1822,1848]" captionTargetBox="[241,1346,265,1784]" captionTargetId="figure@5.[241,1346,265,1784]" captionTargetPageId="5" captionText="Fig. 1. Megatrigon spp., habitus, dorsal view. A. Megatrigon argenteus (Walker, 1852) comb. nov. (♂). B. M. argentifrons sp. nov. (♂). C. M. argentimaculatus sp. nov. (♂). D. M. magnicornis sp. nov. (♂). E. M. natalensis sp. nov. (♂). F. M. sexmaculatus sp. nov. (♂). G. M. apiformis sp. nov. (♂). H. M. cooksoni sp. nov. (♂). I. M. immaculatus sp. nov. (♂). J. M. ochreatus (Hull, 1964) comb. nov. (♂). K. M. tabanoides sp. nov. (♂). L. M. jacobi (Hervé-Bazin, 1913) comb. nov. (♂). M. M. nivalis (Hull, 1964) comb. nov. (♀)." figureDoi="http://doi.org/10.5281/zenodo.3849878" httpUri="https://zenodo.org/record/3849878/files/figure.png" pageId="28" pageNumber="29">Figs 1L</figureCitation>
|
||
,
|
||
<figureCitation id="13789FEDFFFDEC0BFC0EEFB3FC07FA23" box="[916,960,1474,1500]" captionStart="Fig" captionStartId="6.[189,232,1822,1848]" captionTargetBox="[189,1399,518,1778]" captionTargetId="figure@6.[189,1399,518,1778]" captionTargetPageId="6" captionText="Fig. 2. Megatrigon spp., head, dorsal view. A. Megatrigon argenteus (Walker, 1852) comb. nov. (♂). B. M. argentifrons sp. nov. (♂). C. M. argentimaculatus sp. nov. (♂). D. M. magnicornis sp. nov. (♂). E–F. M.natalensissp. nov.(arrow =postocellarspot)(♂).G.M.sexmaculatus sp. nov.(♂).H. M.apiformis sp. nov. (♂). I. M. cooksoni sp. nov. (♂). J. M. immaculatus sp. nov. (♂). K. M. ochreatus (Hull, 1964) comb. nov. (♂). L. M. tabanoides sp. nov. (♂). M. M. jacobi (Hervé-Bazin, 1913) comb. nov. (♂). N. M. nivalis (Hull, 1964) comb. nov. (♀). Symbol: x = postocellar spot." figureDoi="http://doi.org/10.5281/zenodo.3849882" httpUri="https://zenodo.org/record/3849882/files/figure.png" pageId="28" pageNumber="29">2M</figureCitation>
|
||
,
|
||
<figureCitation id="13789FEDFFFDEC0BFC57EFB3FC37FA23" box="[973,1008,1474,1500]" captionStart="Fig" captionStartId="7.[188,231,1822,1848]" captionTargetBox="[233,1359,267,1781]" captionTargetId="figure@7.[233,1359,267,1781]" captionTargetPageId="7" captionText="Fig. 3. Megatrigon spp., left antenna, lateral view. A. Megatrigon argenteus (Walker, 1852) comb. nov. (♂). B. M. argentifrons sp. nov. (♂). C. M. argentimaculatus sp. nov. (♂). D. M. magnicornis sp. nov. (♂). E. M. natalensis sp. nov. (♂). F. M. sexmaculatus sp. nov. (♂). G. M. apiformis sp. nov. (♂). H. M. cooksoni sp. nov. (♂). I. M. immaculatus sp. nov. (♂). J. M. ochreatus (Hull, 1964) comb. nov. (♂). K. M. tabanoides sp. nov. (♂). L. M. jacobi (Hervé-Bazin, 1913) comb. nov. (♂). M. M. nivalis (Hull, 1964) comb. nov. (♀)." figureDoi="http://doi.org/10.5281/zenodo.3849886" httpUri="https://zenodo.org/record/3849886/files/figure.png" pageId="28" pageNumber="29">3L</figureCitation>
|
||
,
|
||
<figureCitation id="13789FEDFFFDEC0BFC67EFB3FBE7FA23" box="[1021,1056,1474,1500]" captionStart="Fig" captionStartId="11.[189,232,1862,1888]" captionTargetBox="[189,1399,265,1837]" captionTargetId="figure@11.[189,1399,265,1837]" captionTargetPageId="11" captionText="Fig. 7. Megatrigon spp., abdomen, dorsal view, ♂. A. Megatrigon argenteus (Walker, 1852) comb. nov. B. M. argentifrons sp. nov. C. M. argentimaculatus sp. nov. D. M. magnicornis sp. nov. E. M. natalensis sp. nov. F. M. sexmaculatus sp. nov. G. M. apiformis sp. nov. H. M. cooksoni sp. nov. I. M. immaculatus sp. nov. J. M. ochreatus (Hull, 1964) comb. nov. K. M. tabanoides sp. nov. L. M. jacobi (Hervé-Bazin, 1913) comb. nov." figureDoi="http://doi.org/10.5281/zenodo.3849902" httpUri="https://zenodo.org/record/3849902/files/figure.png" pageId="28" pageNumber="29">7L</figureCitation>
|
||
,
|
||
<figureCitation id="13789FEDFFFDEC0BFBB7EFB3FB9BFA23" box="[1069,1116,1474,1500]" captionStart="Fig" captionStartId="30.[189,232,1894,1920]" captionTargetBox="[189,1398,875,1852]" captionTargetId="figure@30.[189,1398,875,1852]" captionTargetPageId="30" captionText="Fig. 13. Megatrigon spp., ♂ genitalia, lateral (A, F) and ventral (B–E, G) view (SEM). A–C. Megatrigon argenteus (Walker, 1852) comb. nov. D. M. magnicornis sp. nov. E. M. jacobi (Hervé-Bazin, 1913) comb. nov. F–G. Megatrigon sp. from the sexfasciatus group. Symbols: w = median surstyle; x = inner accessory lobe of median surstyle; y = posterior surstyle; z = subepandrial sclerite." figureDoi="http://doi.org/10.5281/zenodo.3849926" httpUri="https://zenodo.org/record/3849926/files/figure.png" pageId="28" pageNumber="29">13E</figureCitation>
|
||
) is a distinctive species readily recognised by the reduced mouthparts and related features of the lower parts of the head (similar to
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFF40EC79FDA1F9DD" authority="Hull, 1944" authorityName="Hull" authorityYear="1944" box="[218,614,1544,1570]" class="Insecta" family="Syrphidae" genus="Merodon" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="bombiformis">
|
||
<emphasis id="B9375F7AFFFDEC0BFF40EC79FE18F9DD" box="[218,479,1544,1570]" italics="true" pageId="28" pageNumber="29">Merodon bombiformis</emphasis>
|
||
Hull, 1944
|
||
</taxonomicName>
|
||
). The identity of
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFCB1EC78FC18F9DD" authorityName="Johnson" authorityYear="1898" box="[811,991,1544,1570]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFCB1EC78FC18F9DD" box="[811,991,1544,1570]" italics="true" pageId="28" pageNumber="29">M. sexfasciatus</emphasis>
|
||
</taxonomicName>
|
||
remains obscure. The material that has been available for the present study consists of males of several species that in external characters are very similar to the female
|
||
<typeStatus id="54F83DCAFFFDEC0BFDAFEC3FFD5BF997" box="[565,668,1614,1640]" pageId="28" pageNumber="29" type="holotype">holotype</typeStatus>
|
||
of
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFD51EC3EFC43F997" authorityName="Johnson" authorityYear="1898" box="[715,900,1614,1640]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFD51EC3EFC43F997" box="[715,900,1614,1640]" italics="true" pageId="28" pageNumber="29">M. sexfasciatus</emphasis>
|
||
</taxonomicName>
|
||
. At present we cannot assign any of the available males to the nominal taxon
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFD1EEC03FCFBF973" authorityName="Johnson" authorityYear="1898" box="[644,828,1650,1676]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFD1EEC03FCFBF973" box="[644,828,1650,1676]" italics="true" pageId="28" pageNumber="29">M. sexfasciatus</emphasis>
|
||
</taxonomicName>
|
||
. There are several ‘morphs’ similar to the type of
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFF44ECE4FE7AF950" authorityName="Doczkal & Radenković & Lyneborg & Pape" authorityYear="2016" baseAuthorityName="Hull" baseAuthorityYear="1964" box="[222,445,1685,1711]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="flavimarginatus" status="comb. nov.">
|
||
<emphasis id="B9375F7AFFFDEC0BFF44ECE4FE7AF950" box="[222,445,1685,1711]" italics="true" pageId="28" pageNumber="29">M. flavimarginatus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A204E201FFFDEC0BFE5CECE5FD8EF950" box="[454,585,1684,1711]" pageId="28" pageNumber="29" rank="species">comb. nov.</taxonomicNameLabel>
|
||
in the available material. However, as most of these are represented by singletons, we are unable to assess the significance of the observed, often slight, morphological differences and for that reason we refrain from describing them here. More material in good condition is needed to uncover the species diversity in the
|
||
<taxonomicName id="4C43F8EBFFFDEC0BFD47EC8FFCACF8E7" authorityName="Johnson" authorityYear="1898" box="[733,875,1790,1816]" class="Insecta" family="Syrphidae" genus="Megatrigon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="sexfasciatus">
|
||
<emphasis id="B9375F7AFFFDEC0BFD47EC8FFCACF8E7" box="[733,875,1790,1816]" italics="true" pageId="28" pageNumber="29">sexfasciatus</emphasis>
|
||
</taxonomicName>
|
||
group, but we expect that a good number of distinct species will be discovered.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |