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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1046.57052" ID-GBIF-Dataset="348e46a4-8819-4e3c-b4b9-b5e88bee10d7" ID-PMC="PMC8238928" ID-Pensoft-Pub="1313-2970-1046-1" ID-Pensoft-UUID="DBC42C98E4DA5074B86525CF2FB2FA64" ID-PubMed="34239337" ID-ZooBank="66E61C4EFAFE45DE9145DB38199BDEC3" ModsDocID="1313-2970-1046-1" checkinTime="1624307367557" checkinUser="pensoft" docAuthor="Jordaens, Kurt, Goergen, Georg, Skevington, Jeffrey H., Kelso, Scott &amp; Meyer, Marc De" docDate="2021" docId="42E7056D366851C986C5B613BCE4D966" docLanguage="en" docName="ZooKeys 1046: 1-141" docOrigin="ZooKeys 1046" docPubDate="2021-06-21" docSource="http://dx.doi.org/10.3897/zookeys.1046.57052" docTitle="Mesembrius perforatus" docType="treatment" docVersion="5" id="DBC42C98E4DA5074B86525CF2FB2FA64" lastPageNumber="1" masterDocId="DBC42C98E4DA5074B86525CF2FB2FA64" masterDocTitle="Revision of the Afrotropical species of the hover fly genus Mesembrius Rondani (Diptera, Syrphidae) using morphological and molecular data" masterLastPageNumber="141" masterPageNumber="1" pageNumber="1" updateTime="1732487030840" updateUser="ExternalLinkService">
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<mods:titleInfo id="07F7445E51D91D73FC3FF9F6581441BA">
<mods:title id="808C136C87D509B4BE51D6150C6C0CC1">Revision of the Afrotropical species of the hover fly genus Mesembrius Rondani (Diptera, Syrphidae) using morphological and molecular data</mods:title>
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<mods:name id="F2C3483BF00669D4A5E2F5813A90CC18" type="personal">
<mods:role id="6856C5109A7AFE4F3B9745F1B92229AF">
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<mods:namePart id="2E1F60E6EE2C0351E35A4CF45B967578">Jordaens, Kurt</mods:namePart>
<mods:affiliation id="1227E26A241CF50B152A6B7413366AAD">Royal Museum for Central Africa, Invertebrates Section and JEMU, Leuvensesteenweg 13, B- 3080 Tervuren, Belgium</mods:affiliation>
<mods:nameIdentifier id="9B7EA9205A607E10D7DF5F7DF87FDEE8" type="email">kurt.jordaens@africamuseum.be</mods:nameIdentifier>
</mods:name>
<mods:name id="DF0E95CA5423C8E52272C69DC685BEEB" type="personal">
<mods:role id="A380CA686D936DBC803497823706E3DA">
<mods:roleTerm id="C834395607F3589E623BC3E1617330FA">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="E983E4524691BA2A5824D2A42F47B2B9">Goergen, Georg</mods:namePart>
<mods:nameIdentifier id="9565560EE2FC86A16251BDB670228455" type="ORCID">https://orcid.org/0000-0003-4496-0495</mods:nameIdentifier>
<mods:affiliation id="F3D2CC3A891D042EE42CBDF8267CD2C0">International Institute for Tropical Agriculture (IITA), Biodiversity Centre, 08 BP 0932 Tri Postal, Cotonou, Benin</mods:affiliation>
</mods:name>
<mods:name id="1E639B2EDE134EB15900B71D3BD7CC8D" type="personal">
<mods:role id="830E8FA20EFE8488D27AA485E9CEB019">
<mods:roleTerm id="960F761C870A84FE73F1BF59CB757230">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="C74D7AF93670C66F91E91573B8C5A8D3">Skevington, Jeffrey H.</mods:namePart>
<mods:nameIdentifier id="27CEC94AA639CF53D98EEFDB44297F05" type="ORCID">https://orcid.org/0000-0002-1445-9870</mods:nameIdentifier>
<mods:affiliation id="6C0AA9D9EEFB4AA2E807B6ECF05D779F">Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, K. W. Neatby Building, 960 Carling Avenue, Ottawa, ON K 1 A 0 C 6, Canada</mods:affiliation>
</mods:name>
<mods:name id="003667158AE0855B05E7F95CFB2BAE9C" type="personal">
<mods:role id="B3CF65BFE5A860174F1BDABCE7C2196C">
<mods:roleTerm id="1A00358E7F7664F36C1A7536C9AE002D">Author</mods:roleTerm>
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<mods:namePart id="1CADD82E71A1BF3A2534A995AFAD8AD8">Kelso, Scott</mods:namePart>
<mods:affiliation id="683D204026D5479685446FE273EEC6D3">Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, K. W. Neatby Building, 960 Carling Avenue, Ottawa, ON K 1 A 0 C 6, Canada</mods:affiliation>
</mods:name>
<mods:name id="466ED54F2234B4C0F531FA16A568FA6A" type="personal">
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<mods:roleTerm id="1392C3F90F31E91162DF28790A6F4CAA">Author</mods:roleTerm>
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<mods:namePart id="DA18C7F4A8A9F606B3010AE4BC25A0C3">Meyer, Marc De</mods:namePart>
<mods:nameIdentifier id="3E0CE83E4CBD11428307840311C10F0A" type="ORCID">https://orcid.org/0000-0003-0755-2898</mods:nameIdentifier>
<mods:affiliation id="071ADE7F59EAB2AD4F4EE772394FFC2C">Royal Museum for Central Africa, Invertebrates Section and JEMU, Leuvensesteenweg 13, B- 3080 Tervuren, Belgium</mods:affiliation>
</mods:name>
<mods:typeOfResource id="D8C69558237516A7A88F271813CA36A4">text</mods:typeOfResource>
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<mods:title id="66BB7086C71B19DA7A7DA0EC57AB4E5B">ZooKeys</mods:title>
</mods:titleInfo>
<mods:part id="F1DB0ADABD2036F30FA588C232DEC35F">
<mods:date id="E5C6081BBCBD801828C76DB36AD0E992">2021</mods:date>
<mods:detail id="072953A522CECDD93DB846A7403BF72D" type="pubDate">
<mods:number id="E13CD140709C801B3BA22F471F3CF51B">2021-06-21</mods:number>
</mods:detail>
<mods:detail id="46FCAE29C635171A278CB5E02F488DD5" type="volume">
<mods:number id="F0281EC45835D68DA558A881729B042E">1046</mods:number>
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<mods:start id="DFB8959E9D23ADF051BC253BBF8A9596">1</mods:start>
<mods:end id="78FCA5B50564052D5AEF9E43A6A025BB">141</mods:end>
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<mods:location id="611C1D350A3D09D24B4263DFCB0B6E2F">
<mods:url id="AAACE245D4101F38022764DBA894DEB3">http://dx.doi.org/10.3897/zookeys.1046.57052</mods:url>
</mods:location>
<mods:classification id="27A5B49DAC87A21490963F266024D0BB">journal article</mods:classification>
<mods:identifier id="A86AA35C787057E0D5E7A8676B0118DD" type="DOI">http://dx.doi.org/10.3897/zookeys.1046.57052</mods:identifier>
<mods:identifier id="102A51CAE91A5B40C3BE8D104A9C9003" type="Pensoft-Pub">1313-2970-1046-1</mods:identifier>
<mods:identifier id="BB10A60696E6334BF87705869EB8E7FF" type="ZooBank">66E61C4EFAFE45DE9145DB38199BDEC3</mods:identifier>
<mods:identifier id="2AAF2FB108E0C8FB1BB8E811C1E23859" type="Pensoft-UUID">DBC42C98E4DA5074B86525CF2FB2FA64</mods:identifier>
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<treatment id="42E7056D366851C986C5B613BCE4D966" ID-GBIF-Taxon="183114813" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966" httpUri="http://treatment.plazi.org/id/42E7056D366851C986C5B613BCE4D966" lastPageNumber="1" pageId="0" pageNumber="1" scope_family="Syrphidae" scope_order="Diptera">
<subSubSection id="575BBDBB0AFA07CB2651944E4D80FCD1" pageId="0" pageNumber="1" type="nomenclature">
<paragraph id="35360641886E8D7D7A56936E2B83984E" pageId="0" pageNumber="1">
<taxonomicName id="CDBA13B24B5B934A166E29DD258E902D" ID-CoL="8CT9W" LSID="42E7056D-3668-51C9-86C5-B613BCE4D966" authority="(Speiser, 1913)" baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius perforatus" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="perforatus">Mesembrius perforatus (Speiser, 1913)</taxonomicName>
<figureCitation id="EA77DDF3B4FB8A07037DEAF91835EE5E" captionStart="Figures 15, 16" captionStartId="F8" captionText="Figures 15, 16. Mesembrius spp., habitus, lateral view 15 M. nigriceps Curran (♂) 16 M. perforatus (Speiser) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures15-16" httpUri="https://binary.pensoft.net/fig/557469" pageId="0" pageNumber="1">Figs 16</figureCitation>
<figureCitation id="3F6D5EEC8263826444AFE291B81E25D6" captionStart="Figures 58–63" captionStartId="F26" captionText="Figures 58 - 63. Mesembrius spp., head, frontal view 58 M. nigriceps Curran (♂) 59 M. perforatus (Speiser) (♂) 60 M. platytarsis Curran syn. nov. (♂) 61 M. regulus (Hull) (♂) 62 M. rex Curran (♂) 63 M. senegalensis (Macquart) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures58-63" httpUri="https://binary.pensoft.net/fig/557487" pageId="0" pageNumber="1">, 59</figureCitation>
<figureCitation id="A5813EC53356D2259611D85CE68E5AFC" captionStart="Figures 95–100" captionStartId="F33" captionText="Figures 95 - 100. Mesembrius spp., abdomen, dorsal view 95 M. nigriceps Curran (♂) 96 M. perforatus (Speiser) (♂) 97 M. platytarsis Curran syn. nov. (♂) 98 M. regulus (Hull) (♂) 99 M. rex Curran (♂) 100 M. senegalensis (Macquart) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures95-100" httpUri="https://binary.pensoft.net/fig/557494" pageId="0" pageNumber="1">, 96</figureCitation>
<figureCitation id="1C0737DAC9044804CBEF27521174944D" captionStart="Figures 139–142" captionStartId="F42" captionText="Figures 139 - 142. Mesembrius spp., right wing 139 M. nigriceps Curran (♂) 140 M. perforatus (Speiser) (♂) 141 M. platytarsis Curran syn. nov. (♂) 142 M. regulus (Hull) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures139-142" httpUri="https://binary.pensoft.net/fig/557503" pageId="0" pageNumber="1">, 140</figureCitation>
<figureCitation id="E5BCA1FE844706BFB4F9BE3BAA5D8F9F" captionStart="Figures 151–154" captionStartId="F45" captionText="Figures 151 - 154. Mesembrius, proleg, dorsal view 151 M. chapini Curran (♂) 152 M. perforatus (Speiser) (♂) 153 M. regulus (Hull) (♂) 154 M. rex Curran (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures151-154" httpUri="https://binary.pensoft.net/fig/557506" pageId="0" pageNumber="1">, 152</figureCitation>
<figureCitation id="C9C14CF7776C4D4056DADDEDEEBBAC57" captionStart="Figures 163–165" captionStartId="F48" captionText="Figures 163 - 165. Mesembrius spp., proleg, dorsal view 163 M. perforatus (Speiser) (♂) 164 M. sulcus sp. nov. (♂) 165 M. tibialis sp. nov. (♂). Abbreviations: bt-basitarsus, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures163-165" httpUri="https://binary.pensoft.net/fig/557508" pageId="0" pageNumber="1">, 163</figureCitation>
<figureCitation id="8E618070CA7D5AABAACF19466A103BC4" captionStart="Figures 185–188" captionStartId="F53" captionText="Figures 185 - 188. Mesembrius spp., mesoleg, dorsal view 185 M. perforatus (Speiser) (♀). Metaleg, posterior view 186 M. chapini Curran (♂) 187 M. sulcus sp. nov. (♂). Metaleg, ventral view 188 M. tibialis sp. nov. (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures185-188" httpUri="https://binary.pensoft.net/fig/557513" pageId="0" pageNumber="1">, 185</figureCitation>
<figureCitation id="C4A2B93C35E93AB71F689268E0F220C2" captionStart="Figures 217–228" captionStartId="F59" captionText="Figures 217 - 228. Mesembrius spp., male genitalia, lateral view 217 M. nigriceps Curran 218 M. perforatus (Speiser) 219 M. platytarsis Curran syn. nov. 220 M. regulus (Hull) 221 M. rex Curran 222 M. senegalensis (Macquart) 223 M. simplicipes Curran 224 M. strigilatus (Bezzi) 225 M. sulcus sp. nov. 226 M. tarsatus (Bigot) 227 M. tibialis sp. nov. 228 M. vockerothi sp. nov." figureDoi="10.3897/zookeys.1046.57052.figures217-228" httpUri="https://binary.pensoft.net/fig/557519" pageId="0" pageNumber="1">, 218</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="19ED1D0F1F9BAA00E6D1A5DB8021FED1" pageId="0" pageNumber="1" type="reference_group">
<paragraph id="0B45E6F276BFCD31E34BD1A29F123845" pageId="0" pageNumber="1">
<taxonomicName id="03D24022E2E9293FD5A9AB7621B5A243" class="Insecta" family="Syrphidae" genus="Prionotomyia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionotomyia perforata" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="perforata">Prionotomyia perforata</taxonomicName>
Speiser, 1913: 129.
</paragraph>
<paragraph id="33B69F8BF9107A74C6645D84C472AB91" pageId="0" pageNumber="1">
<taxonomicName id="44D856455D338F10C74C6A5D62C5EF1D" baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius perforatus" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="perforatus">Mesembrius perforatus</taxonomicName>
-
<bibRefCitation id="7C1A3D9BBE1B6280D42E077FEABB9C2E" author="Smith, KGV" editor="Crosskey, RW" journalOrPublisher="British Museum (Natural History), London" pageId="0" pageNumber="1" pagination="488 - 510" refId="B49" refString="Smith, KGV, Vockeroth, JR, 1980. 38. Family Syrphidae. In: Crosskey, RW, Ed., Catalogue of the Diptera of the Afrotropical Region. British Museum (Natural History), London: 488 - 510" title="38. Family Syrphidae." volumeTitle="Catalogue of the Diptera of the Afrotropical Region." year="1980">Smith and Vockeroth (1980)</bibRefCitation>
: 504.
</paragraph>
</subSubSection>
<subSubSection id="D9DA3CD9A00685D4812B3D5BE66C1CF6" pageId="0" pageNumber="1" type="differential diagnosis">
<paragraph id="478D107431B03720105244ABAFC0402C" pageId="0" pageNumber="1">Differential diagnosis.</paragraph>
<paragraph id="23E5B829863B78AB0ECDD52FF39758C4" pageId="0" pageNumber="1">
<taxonomicName id="B2A3A24CFAF66F3811A2BE3247A9CC7F" baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius perforatus" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="perforatus">
<emphasis id="CE8695BB2F3A4C2AFA38B4CAE80950E5" italics="true" pageId="0" pageNumber="1">Mesembrius perforatus</emphasis>
</taxonomicName>
males have a black apical pile brush on the profemur, the protarsi are very broad, orange and the probasitarsus has a tuft of orange pile on the posterior side. The metafemur is long and slender with black pile ventrally which becomes longer towards the distal end. The metatibia has a long and deep posterior depression which is bordered with long black pile. The species resembles other species with a dark apical pile brush on the profemur, but the probasitarsus has a tuft of orange pile as in
<taxonomicName id="6D6A715ADA4ED1460917A488623F1D80" lsidName="M. rex" pageId="0" pageNumber="1" rank="species" species="rex">
<emphasis id="76E018DF72F038D6FA7D4828576BEB17" italics="true" pageId="0" pageNumber="1">M. rex</emphasis>
</taxonomicName>
from which it differs in the metafemur which is entirely covered in short black pile ventrally (with a row of short spines in
<taxonomicName id="46CECDE24BE68FD3281E765912ABD4E0" lsidName="M. rex" pageId="0" pageNumber="1" rank="species" species="rex">
<emphasis id="5C9EB7F3B180C29E3F44E52054903D8E" italics="true" pageId="0" pageNumber="1">M. rex</emphasis>
</taxonomicName>
). Other species with a dense apical pile brush have either no tuft of pile on the probasitarsus (
<taxonomicName id="32DB86C154F322E5C696FD77D70F4FAE" lsidName="M. regulus" pageId="0" pageNumber="1" rank="species" species="regulus">
<emphasis id="458B9C740A7DD77B48005833F87FD041" italics="true" pageId="0" pageNumber="1">M. regulus</emphasis>
</taxonomicName>
) or a tuft of black pile (other species). It is the only species which has three depressions on the posterior side of the metatibia. The female is unknown.
</paragraph>
</subSubSection>
<subSubSection id="A1893605BB5D51722F38241E17439120" pageId="0" pageNumber="1" type="materials_examined">
<paragraph id="9F0C7CAD98D64A1E73D30202D12DC332" pageId="0" pageNumber="1">Examined material.</paragraph>
<paragraph id="D503A7DE6F7E9361BA59611BDEC53476" pageId="0" pageNumber="1">
<materialsCitation id="FF3760CB22A74D583F3559BC6BB2AF8C" collectingDate="1905-12-17" collectorName="Chr. Schroeder" country="Tanzania" location="Niussi" specimenCount="1" typeStatus="Holotype">
<emphasis id="EF4A2B86390C4D6C1C82CF68939583AC" bold="true" italics="true" pageId="0" pageNumber="1">
<typeStatus id="01C7BB3E1C5B669C84FAFCCA22BDF052">Holotype</typeStatus>
</emphasis>
, male:
<collectingCountry id="E04149A0E704CD798491BC49A4242239" name="Tanzania">Tanzania</collectingCountry>
•
<location id="AAF0C1E34718F82C2AFC836C47BFD9E6" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:AAF0C1E34718F82C2AFC836C47BFD9E6" country="Tanzania" name="Niussi">Niussi</location>
;
<collectingDate id="DA26B3F25BE1C42CDEF42BD052FA8AEC" value="1905-12-17">17 Dec 1905</collectingDate>
;
<collectorName id="C94E873CB3395106A8586EA5A9103D02">
Chr.
<normalizedToken id="AA62894445D92D38399747C49F10D62B" originalValue="Schröder">Schroeder</normalizedToken>
</collectorName>
leg. (type not found/studied).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="5D4B7E0FD0F6BD2A4FBAC9E1A95049EC" pageId="0" pageNumber="1" type="materials_examined">
<paragraph id="F91A2F4E78C05FB490BD4D1387A8A910" pageId="0" pageNumber="1">Other material</paragraph>
<paragraph id="80E6C29B3AC254A283A8192CBE31FDFA" pageId="0" pageNumber="1">
<materialsCitation id="A8AEAC913592F1C35E4938EDCEEBBB22" collectingDate="1993-11-11" collectorName="G. Goergen" country="Benin" location="Calavi" specimenCount="1" specimenCount-male="1">
<collectingCountry id="2BC287E4DAC7EDE4C66776E4397BE714" name="Benin">Benin</collectingCountry>
•
<specimenCount id="7BC52F39512B855B970EC00C49DC2747" type="male">1♂</specimenCount>
;
<location id="97C6A73295CF843A72123165D9B96A34" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:97C6A73295CF843A72123165D9B96A34" country="Benin" name="Calavi">Calavi</location>
;
<collectingDate id="1BC6417B97289A31D1E8D5470AD02268" value="1993-11-11">11 Nov 1993</collectingDate>
;
<collectorName id="EFD5662E37737A3549793921E5A84F03">G. Goergen</collectorName>
leg.; IITA
</materialsCitation>
•
<materialsCitation id="667C545C1AB8F43E5D31399CF56093BE" collectingDate="2001-10" collectorName="G. Goergen" country="Benin" location="Calavi" specimenCount="1" specimenCount-male="1">
<specimenCount id="04BF996C8C8EBE227527FE369D2EC070" type="male">1♂</specimenCount>
;
<location id="DFA45DFFE0540D6A5F36433F512BAAC8" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:DFA45DFFE0540D6A5F36433F512BAAC8" country="Benin" name="Calavi">Calavi</location>
;
<collectingDate id="7C3F5712F9463DACCEAE6C72DEE520E3" value="2001-10">Oct 2001</collectingDate>
;
<collectorName id="CEF275A4220DF6FE5040419893418004">G. Goergen</collectorName>
leg.; IITA
</materialsCitation>
.
<materialsCitation id="B34C4B65C16E20FD5554F2FCB9536879" collectingDate="1930-04" collectorName="M. Bequaert" country="Democratic Republic of the Congo" location="Elisabethville" specimenCount="1" specimenCount-male="1">
<collectingCountry id="4C060C723DF1D93E2391C407499FBEF9" name="Democratic Republic of the Congo">Democratic Republic of the Congo</collectingCountry>
•
<specimenCount id="4DB5C5FC2FB23B051714F0087286320E" type="male">1♂</specimenCount>
;
<location id="6429B4DF313CCDF9FC12455BF0BCA794" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:6429B4DF313CCDF9FC12455BF0BCA794" country="Democratic Republic of the Congo" name="Elisabethville">Elisabethville</location>
[= Lubumbashi];
<collectingDate id="1AB1A1D462954A8CB21858D5D141CD93" value="1930-04">Apr 1930</collectingDate>
;
<collectorName id="CEDC536EADB3E446D0B553839736D4D1">M. Bequaert</collectorName>
leg.; KMMA
</materialsCitation>
•
<materialsCitation id="2C7E60D82613D833F221E46A14F6918F" collectingDate="1930-04" collectorName="M. Bequaert" country="Democratic Republic of the Congo" location="Elisabethville" specimenCount="1" specimenCount-male="1">
<specimenCount id="6ED4393EBD55F1A8516740E53CBB8FB7" type="male">1♂</specimenCount>
;
<location id="4E69790E91620B5720DF941ED51AA695" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:4E69790E91620B5720DF941ED51AA695" country="Democratic Republic of the Congo" name="Elisabethville">Elisabethville</location>
[= Lubumbashi];
<collectingDate id="AEB4FA979079390EBC56409739A8B8F5" value="1930-04">Apr 1930</collectingDate>
;
<collectorName id="E3FB4B16CF6BA5F8A93E44C70F25B96D">M. Bequaert</collectorName>
leg.; RMNH
</materialsCitation>
•
<materialsCitation id="6DAF516BA80667ED024403F755C34CE6" collectingDate="1931-08-21" collectingDateMax="1931-08-27" collectingDateMin="1931-08-21" collectorName="W. P. Cockerell" country="Democratic Republic of the Congo" location="Tshibinda" specimenCount="1" specimenCount-male="1">
<specimenCount id="39EC294DD19BC9334D49CC2297169220" type="male">1♂</specimenCount>
;
<location id="F02B42B1A75453A8E23A7274476CA2CB" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:F02B42B1A75453A8E23A7274476CA2CB" country="Democratic Republic of the Congo" name="Tshibinda">Tshibinda</location>
;
<collectingDate id="B92396AED60C507A3D7EB4D232902069" value="1931-08-21" valueMax="1931-08-27" valueMin="1931-08-21">21-27 Aug 1931</collectingDate>
;
<collectorName id="0305BC56EA5F30733ABEDE4E4DEF79E4">W.P. Cockerell</collectorName>
leg.; NHMUK
</materialsCitation>
.
<materialsCitation id="106BD2F90CB89FE1EDBC3EABABB37621" collectingDate="1991-01-24" collectorName="Earthwatch Team" country="Kenya" location="Isecheno Station" municipality="Forest" specimenCount="1" specimenCount-male="1" stateProvince="Kakamega">
<collectingCountry id="E07F014A8FE5FB9E7DDE61F0600C8FCA" name="Kenya">Kenya</collectingCountry>
•
<specimenCount id="DB7C6108F45073F8E6EF7C6BA37879E8" type="male">1♂</specimenCount>
;
<collectingRegion id="B0293DFB94104334CD6121C6E8B43151" country="Kenya" name="Kakamega">Kakamega</collectingRegion>
<collectingMunicipality id="87AFF776D94BCA768BDE3F7ABE9B58F3">Forest</collectingMunicipality>
,
<location id="5CC2A02EE8EC942A65A5EFE390B35CCD" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:5CC2A02EE8EC942A65A5EFE390B35CCD" country="Kenya" municipality="Forest" name="Isecheno Station" stateProvince="Kakamega">Isecheno Station</location>
;
<collectingDate id="3C3EA90FE4F72CE74E277076DE8B1065" value="1991-01-24">24 Jan 1991</collectingDate>
;
<collectorName id="B18AC5F481AB3E80AC77232DA217A906">Earthwatch Team</collectorName>
2 leg.; NMK
</materialsCitation>
.
<materialsCitation id="3C06991F0F53ED4F0FD1CD7DD5F49C93" collectingDate="1912-05-27" collectorName="C. C. Gowdey" country="Uganda" location="Entebbe" specimenCount="1" specimenCount-male="1">
<collectingCountry id="496EEED34FFBC9297C2038093711F9DA" name="Uganda">Uganda</collectingCountry>
•
<specimenCount id="ECB24E170E9E6811D3510FFCF0834243" type="male">1♂</specimenCount>
;
<location id="88C3F42EBCD6F92E97C3635C43CE46AD" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:88C3F42EBCD6F92E97C3635C43CE46AD" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="D85BD06CBF865AC0B019A20D46D4AD34" value="1912-05-27">27 May 1912</collectingDate>
;
<collectorName id="5E5A5648908B9E3BD5FCF8D0AC9E3D95">C.C. Gowdey</collectorName>
leg.; NHMUK
</materialsCitation>
•
<materialsCitation id="4F93E1912BDD1A6EDD09C18377119F29" collectingDate="1912-05-07" collectingDateMax="1912-05-09" collectingDateMin="1912-05-07" collectorName="C. C. Gowdey" country="Uganda" location="Entebbe" specimenCount="4" specimenCount-male="4">
<specimenCount id="0F9746EB744C5A85B88D466E86F2D7C3" type="male">4♂♂</specimenCount>
;
<location id="9B73B573BEEAC3A04547AFF8A415551A" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:9B73B573BEEAC3A04547AFF8A415551A" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="71B478AEABE1B834D88A0716266DA690" value="1912-05-07" valueMax="1912-05-09" valueMin="1912-05-07">7-9 May 1912</collectingDate>
;
<collectorName id="8D120575CC321D8A61A7576E2C457FBE">C.C. Gowdey</collectorName>
leg.; NHMUK
</materialsCitation>
•
<materialsCitation id="AE5258699CD51001DF7E3F0326C02D86" collectingDate="1911-08-21" collectorName="C. C. Gowdey" country="Uganda" location="Entebbe" specimenCount="1" specimenCount-male="1">
<specimenCount id="54F1DF31A0E5ABF7AE981A12B18186D0" type="male">1♂</specimenCount>
;
<location id="9657E27E19F137E5C729CA3C009332A0" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:9657E27E19F137E5C729CA3C009332A0" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="CA862330411D01256BBAC56A7FD9AAC2" value="1911-08-21">21 Aug 1911</collectingDate>
;
<collectorName id="DE8A52424FAE5FB1ECA24D138B994854">C.C. Gowdey</collectorName>
leg.; NHMUK
</materialsCitation>
•
<materialsCitation id="BCF74DA692A96305BE3A5C712BC46CEE" collectingDate="1912-11-18" collectingDateMax="1912-11-20" collectingDateMin="1912-11-18" collectorName="C. C. Gowdey" country="Uganda" location="Entebbe" specimenCount="1" specimenCount-male="1">
<specimenCount id="5994D246C14168FDF0182C0B4F39FC98" type="male">1♂</specimenCount>
;
<location id="DB8C645090CC4FD153CAD104304DC89A" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:DB8C645090CC4FD153CAD104304DC89A" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="9D871D5C93B7E23DA5154651B4525868" value="1912-11-18" valueMax="1912-11-20" valueMin="1912-11-18">18-20 Nov 1912</collectingDate>
;
<collectorName id="C056465A0C8BDA605C8C8E5D006F9AE9">C.C. Gowdey</collectorName>
leg.; NHMUK
</materialsCitation>
•
<materialsCitation id="ACB0468984930BA1B6747F81E49886BA" collectingDate="1971-10-07" collectorName="H. Falke" country="Uganda" location="Entebbe" specimenCount="3" specimenCount-male="3">
<specimenCount id="3F34A47CE259DB85DD8E77B303E8047A" type="male">3♂♂</specimenCount>
;
<location id="FA1024565D7592B3EC322EB8D036C127" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:FA1024565D7592B3EC322EB8D036C127" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="1513084929235BA996E68E34063836BC" value="1971-10-07">7 Oct 1971</collectingDate>
;
<collectorName id="CAD52DA8C4EB2CC71E171D25A2289B5F">H. Falke</collectorName>
leg.; CNC
</materialsCitation>
•
<materialsCitation id="C6C7EEA91AB25DC527DB5FDC49D61567" collectingDate="1973-01-23" collectingDateMax="1973-01-31" collectingDateMin="1973-01-23" collectorName="H. Falke" country="Uganda" location="Entebbe" specimenCount="1" specimenCount-male="1">
<specimenCount id="62E29D6126652E02D736B6F26724A345" type="male">1♂</specimenCount>
;
<location id="CD18E5BCBEA35251B8696C8CFFD34E1F" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:CD18E5BCBEA35251B8696C8CFFD34E1F" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="C4866F5A3A3372E3E1A195D48F8779EA" value="1973-01-23" valueMax="1973-01-31" valueMin="1973-01-23">23-31 Jan 1973</collectingDate>
;
<collectorName id="3E5A387C1B3BFBFE8EE1B8067801476F">H. Falke</collectorName>
leg.; CNC
</materialsCitation>
•
<materialsCitation id="8A454DCE99643F1C17418C24A1853C81" collectingDate="1973-03-25" collectingDateMax="1973-03-27" collectingDateMin="1973-03-25" collectorName="H. Falke" country="Uganda" location="Entebbe" specimenCount="1" specimenCount-male="1">
<specimenCount id="F9D2264DB1AB4C35DC389E8C661D50C4" type="male">1♂</specimenCount>
;
<location id="C4AE70ADF68E20CED695562B6B98BF7D" LSID="urn:lsid:plazi:treatment:42E7056D366851C986C5B613BCE4D966:C4AE70ADF68E20CED695562B6B98BF7D" country="Uganda" name="Entebbe">Entebbe</location>
;
<collectingDate id="9C82C5DEDB13B810AB64681F5398DEF4" value="1973-03-25" valueMax="1973-03-27" valueMin="1973-03-25">25-27 Mar 1973</collectingDate>
;
<collectorName id="63822BFF33A6F7E4D8B6696CF161EBF0">H. Falke</collectorName>
leg.; CNC
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="4A314A62EE7614ECDCCA32D0F5CA32C3" pageId="0" pageNumber="1" type="description">
<paragraph id="37F717DD958859219CE4DD3CD2453DA9" pageId="0" pageNumber="1">Re-description male</paragraph>
<paragraph id="2EF211A7D70EC31A8800691144A34390" pageId="0" pageNumber="1">
<emphasis id="073EEDCDACFDBB3B85225F1EDE378E9C" bold="true" pageId="0" pageNumber="1">
(Fig.
<figureCitation id="70DC23B58A291E24F270872C3E099A63" captionStart="Figures 15, 16" captionStartId="F8" captionText="Figures 15, 16. Mesembrius spp., habitus, lateral view 15 M. nigriceps Curran (♂) 16 M. perforatus (Speiser) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures15-16" httpUri="https://binary.pensoft.net/fig/557469" pageId="0" pageNumber="1">16</figureCitation>
).
</emphasis>
Body length: 14.6-15.7 mm. Wing length: 10.5-11.5 mm.
</paragraph>
<paragraph id="AEE0DB72F76A4AFB0BC18FF9AE495E84" pageId="0" pageNumber="1">
<emphasis id="0340796D26A53DB49BA4CAE94BA38FB6" bold="true" italics="true" pageId="0" pageNumber="1">Head</emphasis>
(Fig.
<figureCitation id="151DDD5C54D847343FEEF4F9547A5A79" captionStart="Figures 58–63" captionStartId="F26" captionText="Figures 58 - 63. Mesembrius spp., head, frontal view 58 M. nigriceps Curran (♂) 59 M. perforatus (Speiser) (♂) 60 M. platytarsis Curran syn. nov. (♂) 61 M. regulus (Hull) (♂) 62 M. rex Curran (♂) 63 M. senegalensis (Macquart) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures58-63" httpUri="https://binary.pensoft.net/fig/557487" pageId="0" pageNumber="1">59</figureCitation>
). Eyes bare; slightly dichoptic, distance between the eyes approx. the width of ocellus. Face yellow with dark medial vitta; white pilose; white pollinose. Vertical triangle black; black pilose; yellow pollinose on lower half. Distance between lateral ocellus and eye margin less than 1/2 width of ocellus. Occiput black; yellow pilose with black pile in dorsal area; yellow and white pollinose. Frontal triangle short; black; with some long black pile; white pollinose. Frontal prominence shiny black with orange-brown apex. Antenna, scape and postpedicel black; pedicel dark orange-black; antennal arista reddish-brown.
</paragraph>
<paragraph id="5D4F996B6AEEB6EF3EBAD03214FD46F7" pageId="0" pageNumber="1">
<emphasis id="891838665596DF4B1A127C0C6F9D9FAB" bold="true" italics="true" pageId="0" pageNumber="1">Thorax.</emphasis>
Scutum black with, dorsally, a pair of faint grey pollinose vittae; lateral vitta faint, not well-demarcated; black pilose with long yellow pile on anterolateral part and postpronotum. Scutellum uniformly yellow-brown; with long yellow and black pile.
</paragraph>
<paragraph id="A4A0B0D616F327C82A57E36EB4B961AD" pageId="0" pageNumber="1">
<emphasis id="8904117F83B15CE80753B9B1BA57ACE0" bold="true" italics="true" pageId="0" pageNumber="1">Legs.</emphasis>
Proleg (Figs
<figureCitation id="03C42259F72784094BAC83659926A605" captionStart="Figures 151–154" captionStartId="F45" captionText="Figures 151 - 154. Mesembrius, proleg, dorsal view 151 M. chapini Curran (♂) 152 M. perforatus (Speiser) (♂) 153 M. regulus (Hull) (♂) 154 M. rex Curran (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures151-154" httpUri="https://binary.pensoft.net/fig/557506" pageId="0" pageNumber="1">152</figureCitation>
,
<figureCitation id="3AB36866A339F594E21C48515C945A5A" captionStart="Figures 163–165" captionStartId="F48" captionText="Figures 163 - 165. Mesembrius spp., proleg, dorsal view 163 M. perforatus (Speiser) (♂) 164 M. sulcus sp. nov. (♂) 165 M. tibialis sp. nov. (♂). Abbreviations: bt-basitarsus, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures163-165" httpUri="https://binary.pensoft.net/fig/557508" pageId="0" pageNumber="1">163</figureCitation>
): Femur black; dorsoventrally flattened; with a black apical pile brush; proximoventral section with long, thick black setae; posterior side with long golden pile. Tibia dorsally brown, ventrally orange-brown; with, especially on the ventral side, long black pile. Basitarsus very broad; orange; with a tuft of orange pile on posterior side (Fig.
<figureCitation id="5A3B9759016AB9E6DC4A6E6CF695EF8F" captionStart="Figures 163–165" captionStartId="F48" captionText="Figures 163 - 165. Mesembrius spp., proleg, dorsal view 163 M. perforatus (Speiser) (♂) 164 M. sulcus sp. nov. (♂) 165 M. tibialis sp. nov. (♂). Abbreviations: bt-basitarsus, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures163-165" httpUri="https://binary.pensoft.net/fig/557508" pageId="0" pageNumber="1">163</figureCitation>
). Other tarsi very broad; orange; becoming shorter distally; the most distal tarsal segment white; sparsely black pilose dorsally, but with denser short black pile in anterior half, short orange pilose ventrally. Mesoleg: Femur dark brown; with long yellow pile on ventroproximal side, scattered yellow pile posterodorsally, but black at distal end. Tibia dorsally brown, ventrally orange-brown; with a tuft of black curved pile on ventroproximal end. Tarsi orange; sparsely black pilose dorsally, orange pilose ventrally with some thick long black pile. Metaleg (Fig.
<figureCitation id="6E1C42DAEC4EEFDC84CF4D635FA97259" captionStart="Figures 185–188" captionStartId="F53" captionText="Figures 185 - 188. Mesembrius spp., mesoleg, dorsal view 185 M. perforatus (Speiser) (♀). Metaleg, posterior view 186 M. chapini Curran (♂) 187 M. sulcus sp. nov. (♂). Metaleg, ventral view 188 M. tibialis sp. nov. (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures185-188" httpUri="https://binary.pensoft.net/fig/557513" pageId="0" pageNumber="1">185</figureCitation>
): Femur long and slender; dark brown; black pilose ventrally, the pile gradually becomes longer towards distal end; pile otherwise yellow and less dense. Tibia dorsally dark brown, ventrally orange-brown; in anterior view with a strong carina on the ventral side in the middle; with three deep depressions on the posterior side of the proximal half which are bordered with long, black pile, especially dorsally. Tarsi dark brown; sparsely black pilose dorsally, short orange pilose ventrally.
</paragraph>
<paragraph id="4E5E99725A5A32C9F13370F2DFAEF8F0" pageId="0" pageNumber="1">
<emphasis id="2B09BFB25448277B97E9383950BF165B" bold="true" italics="true" pageId="0" pageNumber="1">Wing</emphasis>
(Fig.
<figureCitation id="179C790442FAA2A5E3F24A11148E74FA" captionStart="Figures 139–142" captionStartId="F42" captionText="Figures 139 - 142. Mesembrius spp., right wing 139 M. nigriceps Curran (♂) 140 M. perforatus (Speiser) (♂) 141 M. platytarsis Curran syn. nov. (♂) 142 M. regulus (Hull) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures139-142" httpUri="https://binary.pensoft.net/fig/557503" pageId="0" pageNumber="1">140</figureCitation>
). Entire wing uniformly dense microtrichose.
</paragraph>
<paragraph id="1E62D94946A9AFD4CE3B3A0F48129FFB" pageId="0" pageNumber="1">
<emphasis id="15781957BB35F5BBCA8E1BC46284A7D5" bold="true" italics="true" pageId="0" pageNumber="1">Abdomen</emphasis>
(Fig.
<figureCitation id="4ED4E6F2D3EAA4644F4C597263798CD0" captionStart="Figures 95–100" captionStartId="F33" captionText="Figures 95 - 100. Mesembrius spp., abdomen, dorsal view 95 M. nigriceps Curran (♂) 96 M. perforatus (Speiser) (♂) 97 M. platytarsis Curran syn. nov. (♂) 98 M. regulus (Hull) (♂) 99 M. rex Curran (♂) 100 M. senegalensis (Macquart) (♂)." figureDoi="10.3897/zookeys.1046.57052.figures95-100" httpUri="https://binary.pensoft.net/fig/557494" pageId="0" pageNumber="1">96</figureCitation>
). Tergite II with pair of large, yellow triangular maculae; black marking hourglass-shaped, white pollinose on posterior end; yellow and black pilose, but black pile most conspicuous on posterior black marking of tergite. Tergite III with broad yellow fascia and a triangular black marking on posterior half; black marking strongly white pollinose, covered with short black spines; otherwise yellow pilose. Tergite IV with large triangular posterior black marking, otherwise yellow; strongly white pollinose.
</paragraph>
<paragraph id="FF551776E0B82669A4819F008794B7C9" pageId="0" pageNumber="1">
<emphasis id="02C10987FF1337162DDA09CEB676A700" bold="true" italics="true" pageId="0" pageNumber="1">Genitalia</emphasis>
(Fig.
<figureCitation id="218EC72A175C0A1B1E936DEC64745C56" captionStart="Figures 217–228" captionStartId="F59" captionText="Figures 217 - 228. Mesembrius spp., male genitalia, lateral view 217 M. nigriceps Curran 218 M. perforatus (Speiser) 219 M. platytarsis Curran syn. nov. 220 M. regulus (Hull) 221 M. rex Curran 222 M. senegalensis (Macquart) 223 M. simplicipes Curran 224 M. strigilatus (Bezzi) 225 M. sulcus sp. nov. 226 M. tarsatus (Bigot) 227 M. tibialis sp. nov. 228 M. vockerothi sp. nov." figureDoi="10.3897/zookeys.1046.57052.figures217-228" httpUri="https://binary.pensoft.net/fig/557519" pageId="0" pageNumber="1">218</figureCitation>
). Epandrium: Dorsal lobe of surstylus short, broadly rounded, with short, black spines on almost entire surface. Ventral lobe of surstylus straight; bare.
</paragraph>
</subSubSection>
<subSubSection id="6E1DFFE29C01E4339155333C276D8DF0" pageId="0" pageNumber="1" type="female">
<paragraph id="0A4D35A36D911AFCAA81C6B38C2424F1" pageId="0" pageNumber="1">Female.</paragraph>
<paragraph id="E5E3700F4DE445C2159FAF21B7E48C9B" pageId="0" pageNumber="1">Unknown.</paragraph>
</subSubSection>
<subSubSection id="FA821D0D4ED159712FB28CDBCEBC812E" pageId="0" pageNumber="1" type="distribution">
<paragraph id="B985181F642D9D33343D5C69B13DF980" pageId="0" pageNumber="1">Distribution.</paragraph>
<paragraph id="00F208D3BC8540B5F6FEE881C6C7CB66" pageId="0" pageNumber="1">Benin, Democratic Republic of the Congo, Kenya, Tanzania and Uganda.</paragraph>
</subSubSection>
<subSubSection id="C35905E667490C4C104A5867F2139BC7" pageId="0" pageNumber="1" type="comments">
<paragraph id="8496C3F24F19BE5B7C2B754E11F53A64" pageId="0" pageNumber="1">Comments.</paragraph>
<paragraph id="4BBED7C3D760ECA8CE965656FC80C095" pageId="0" pageNumber="1">We could not find the male holotype in any of the surveyed collections. The male has a set of unambiguous character states mentioned in the original description and cannot be confused with any other species of the genus. The specimens we have studied correspond with the original species description and are therefore considered to be conspecific.</paragraph>
</subSubSection>
</treatment>
</document>
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