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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="6A80FA85551F5011BCC3E82CBBEEFAD3" 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 tibialis Jordaens, Goergen &amp; De Meyer 2021, sp. nov." docType="treatment" docUuid="EB6378B6-C7E0-490B-B491-EC947BF4436A" docUuidSource="ZooBank" docVersion="4" 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="1668150539886" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Revision of the Afrotropical species of the hover fly genus Mesembrius Rondani (Diptera, Syrphidae) using morphological and molecular data</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Jordaens, Kurt</mods:namePart>
<mods:affiliation>Royal Museum for Central Africa, Invertebrates Section and JEMU, Leuvensesteenweg 13, B- 3080 Tervuren, Belgium</mods:affiliation>
<mods:nameIdentifier type="email">kurt.jordaens@africamuseum.be</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Goergen, Georg</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-4496-0495</mods:nameIdentifier>
<mods:affiliation>International Institute for Tropical Agriculture (IITA), Biodiversity Centre, 08 BP 0932 Tri Postal, Cotonou, Benin</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Skevington, Jeffrey H.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-1445-9870</mods:nameIdentifier>
<mods:affiliation>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 type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kelso, Scott</mods:namePart>
<mods:affiliation>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 type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Meyer, Marc De</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-0755-2898</mods:nameIdentifier>
<mods:affiliation>Royal Museum for Central Africa, Invertebrates Section and JEMU, Leuvensesteenweg 13, B- 3080 Tervuren, Belgium</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-06-21</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>1046</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>141</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1046.57052</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1046.57052</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1046-1</mods:identifier>
<mods:identifier type="ZooBank">66E61C4EFAFE45DE9145DB38199BDEC3</mods:identifier>
<mods:identifier type="Pensoft-UUID">DBC42C98E4DA5074B86525CF2FB2FA64</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="183114808" LSID="urn:lsid:zoobank.org:act:EB6378B6-C7E0-490B-B491-EC947BF4436A" httpUri="http://treatment.plazi.org/id/6A80FA85551F5011BCC3E82CBBEEFAD3" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="http://zoobank.org/EB6378B6-C7E0-490B-B491-EC947BF4436A" authority="Jordaens, Goergen &amp; De Meyer" authorityName="Jordaens, Goergen &amp; De Meyer" authorityYear="2021" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius tibialis" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="tibialis" status="sp. nov.">Mesembrius tibialis Jordaens, Goergen &amp; De Meyer</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figures 25, 26" captionStartId="F13" captionText="Figures 25, 26. Mesembrius spp., habitus, lateral view 25 M. tibialis sp. nov. (♂) 26 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures25-26" httpUri="https://binary.pensoft.net/fig/557474" pageId="0" pageNumber="1">Figs 25</figureCitation>
<figureCitation captionStart="Figures 64–69" captionStartId="F27" captionText="Figures 64 - 69. Mesembrius spp., head, frontal view 64 M. simplicipes Curran (♂) 65 M. strigilatus (Bezzi) (♂) 66 M. sulcus sp. nov. (♂) 67 M. tarsatus (Bigot) (♂) 68 M. tibialis sp. nov. (♂) 69 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures64-69" httpUri="https://binary.pensoft.net/fig/557488" pageId="0" pageNumber="1">, 68</figureCitation>
<figureCitation captionStart="Figures 101–106" captionStartId="F34" captionText="Figures 101 - 106. Mesembrius spp., abdomen, dorsal view 101 M. simplicipes Curran (♂) 102 M. strigilatus (Bezzi) (♂) 103 M. sulcus sp. nov. (♂) 104 M. tarsatus (Bigot) (♂) 105 M. tibialis sp. nov. (♂) 106 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures101-106" httpUri="https://binary.pensoft.net/fig/557495" pageId="0" pageNumber="1">, 105</figureCitation>
<figureCitation captionStart="Figures 147–150" captionStartId="F44" captionText="Figures 147 - 150. Mesembrius spp., right wing 147 M. sulcus sp. nov. (♂) 148 M. tarsatus (Bigot) (♂) 149 M. tibialis sp. nov. (♂) 150 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures147-150" httpUri="https://binary.pensoft.net/fig/557505" pageId="0" pageNumber="1">, 149</figureCitation>
<figureCitation captionStart="Figures 155–158" captionStartId="F46" captionText="Figures 155 - 158. Mesembrius, proleg, dorsal view 155 M. sulcus sp. nov. (♂) 156 M. tibialis sp. nov. (♂) 157 M. arcuatus sp. nov. (♂) 158 M. ingratus (Loew) (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures155-158" pageId="0" pageNumber="1">, 156</figureCitation>
<figureCitation 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">, 165</figureCitation>
<figureCitation captionStart="Figures 177–180" captionStartId="F51" captionText="Figures 177 - 180. Mesembrius spp., mesoleg, dorsal view 177 M. tibialis sp. nov. (♂) 178 M. caffer (Loew) (♂) 179 M. capensis (Macquart) (♂) 180 M. madagascariensis Keiser (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures177-180" httpUri="https://binary.pensoft.net/fig/557511" pageId="0" pageNumber="1">, 177</figureCitation>
<figureCitation 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">, 188</figureCitation>
<figureCitation 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">, 227</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="differential diagnosis">
<paragraph pageId="0" pageNumber="1">Differential diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Jordaens, Goergen &amp; De Meyer" authorityYear="2021" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius tibialis" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius tibialis</emphasis>
</taxonomicName>
sp. nov. males have an apical pile brush on the profemur of thick, dense black pile dorsally and yellow pile ventrally. The metafemur is very long and slender and has long yellow pile and shorter yellow and black pile on the ventral side. The metatibia has no groove on the posterior side. The probasitarsus has a tuft of long black pile. The mesotibia is curved and the proximal half is compressed. The male differs from any other species in the colour of the apical pile brush (except from
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
sp. nov.) which is black dorsally and golden-yellow ventrally (yellow-orange in
<taxonomicName lsidName="M. chapini" pageId="0" pageNumber="1" rank="species" species="chapini">
<emphasis italics="true" pageId="0" pageNumber="1">M. chapini</emphasis>
</taxonomicName>
; dark-brown to black in other species). It differs from
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
sp. nov. in the orange and black probasitarsus (orange in
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
sp. nov.), in the absence of a deep groove in the posterior proximal half of the metatibia and in the strongly compressed mesotibia (unmodified in
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
sp. nov.). The female is unknown.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures177-180" httpUri="https://binary.pensoft.net/fig/557511" pageId="0" pageNumber="1" start="Figures 177–180" startId="F51">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 177-180.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., mesoleg, dorsal view
<emphasis bold="true" pageId="0" pageNumber="1">177</emphasis>
<taxonomicName lsidName="M. tibialis" pageId="0" pageNumber="1" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">M. tibialis</emphasis>
</taxonomicName>
sp. nov. (♂)
<emphasis bold="true" pageId="0" pageNumber="1">178</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
(Loew) (♂)
<emphasis bold="true" pageId="0" pageNumber="1">179</emphasis>
<taxonomicName lsidName="M. capensis" pageId="0" pageNumber="1" rank="species" species="capensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. capensis</emphasis>
</taxonomicName>
(Macquart) (♂)
<emphasis bold="true" pageId="0" pageNumber="1">180</emphasis>
<taxonomicName lsidName="M. madagascariensis" pageId="0" pageNumber="1" rank="species" species="madagascariensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. madagascariensis</emphasis>
</taxonomicName>
Keiser (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Examined material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Jordaens, Goergen &amp; De Meyer" authorityYear="2021" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius tibialis" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius tibialis</emphasis>
</taxonomicName>
<materialsCitation collectingDate="2017-02" collectorName="G. Goergen, Det. K. Jordaens, K. Jordaens" country="Togo" determinerName="Det. K. Jordaens" location="Kloto Forest" specimenCount="1" typeStatus="Holotype">
Jordaens, Goergen &amp; De Meyer:
<typeStatus>Holotype</typeStatus>
, male
<normalizedToken originalValue="“HOLOTYPUS”">
&quot;
<typeStatus>HOLOTYPUS</typeStatus>
&quot;
</normalizedToken>
&quot;
<collectingCountry name="Togo">Togo</collectingCountry>
,
<location LSID="urn:lsid:plazi:treatment:6A80FA85551F5011BCC3E82CBBEEFAD3:FB631E41ED04F1047779637DD28D4077" country="Togo" name="Kloto Forest">Kloto Forest</location>
//
<collectingDate value="2017-02">II.2017</collectingDate>
// leg.
<collectorName>G. Goergen</collectorName>
&quot; &quot;
<taxonomicName authorityName="Jordaens, Goergen &amp; De Meyer" authorityYear="2021" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius tibialis" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="tibialis">Mesembrius tibialis</taxonomicName>
//
<determinerName>
<collectorName>Det. K. Jordaens</collectorName>
</determinerName>
&quot; &quot;DNA 1149A04 //
<collectorName>K. Jordaens</collectorName>
// RMCA 2019&quot; [KMMA].
</materialsCitation>
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures181-184" httpUri="https://binary.pensoft.net/fig/557512" pageId="0" pageNumber="1" start="Figures 181–184" startId="F52">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 181-184.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., mesoleg, dorsal view
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">181</emphasis>
<taxonomicName lsidName="M. senegalensis" pageId="0" pageNumber="1" rank="species" species="senegalensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. senegalensis</emphasis>
</taxonomicName>
</specimenCount>
(Macquart) (
<specimenCount>♂</specimenCount>
)
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">182</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
</specimenCount>
(Loew) (
<specimenCount>♂</specimenCount>
). Metaleg, posterior view
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">183</emphasis>
<taxonomicName lsidName="M. regulus" pageId="0" pageNumber="1" rank="species" species="regulus">
<emphasis italics="true" pageId="0" pageNumber="1">M. regulus</emphasis>
</taxonomicName>
</specimenCount>
(Hull) (
<specimenCount>♀</specimenCount>
)
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">184</emphasis>
<taxonomicName lsidName="M. rex" pageId="0" pageNumber="1" rank="species" species="rex">
<emphasis italics="true" pageId="0" pageNumber="1">M. rex</emphasis>
</taxonomicName>
</specimenCount>
Curran (
<specimenCount>♀</specimenCount>
). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="2017-12" collectorName="G. Goergen" country="Togo" location="Kloto Forest" specimenCount="2" specimenCount-male="2" typeStatus="Paratypes">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">
<typeStatus>Paratypes</typeStatus>
</emphasis>
:
</emphasis>
<collectingCountry name="Togo">Togo</collectingCountry>
•
<specimenCount type="male">2♂♂</specimenCount>
;
<location LSID="urn:lsid:plazi:treatment:6A80FA85551F5011BCC3E82CBBEEFAD3:75023A57E836F3C5AB7353D92BC9A57C" country="Togo" name="Kloto Forest">Kloto Forest</location>
;
<collectingDate value="2017-12">Dec 2017</collectingDate>
;
<collectorName>G. Goergen</collectorName>
leg.; IITA
</materialsCitation>
.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures185-188" httpUri="https://binary.pensoft.net/fig/557513" pageId="0" pageNumber="1" start="Figures 185–188" startId="F53">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 185-188.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., mesoleg, dorsal view
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">185</emphasis>
<taxonomicName lsidName="M. perforatus" pageId="0" pageNumber="1" rank="species" species="perforatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. perforatus</emphasis>
</taxonomicName>
</specimenCount>
(Speiser) (
<specimenCount>♀</specimenCount>
). Metaleg, posterior view
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">186</emphasis>
<taxonomicName lsidName="M. chapini" pageId="0" pageNumber="1" rank="species" species="chapini">
<emphasis italics="true" pageId="0" pageNumber="1">M. chapini</emphasis>
</taxonomicName>
</specimenCount>
Curran (
<specimenCount>♂</specimenCount>
)
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">187</emphasis>
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
</specimenCount>
sp. nov. (
<specimenCount>♂</specimenCount>
). Metaleg, ventral view
<specimenCount type="generic">
<emphasis bold="true" pageId="0" pageNumber="1">188</emphasis>
<taxonomicName lsidName="M. tibialis" pageId="0" pageNumber="1" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">M. tibialis</emphasis>
</taxonomicName>
</specimenCount>
sp. nov. (
<specimenCount>♂</specimenCount>
). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description male</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
(Fig.
<figureCitation captionStart="Figures 25, 26" captionStartId="F13" captionText="Figures 25, 26. Mesembrius spp., habitus, lateral view 25 M. tibialis sp. nov. (♂) 26 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures25-26" httpUri="https://binary.pensoft.net/fig/557474" pageId="0" pageNumber="1">25</figureCitation>
).
</emphasis>
Body length: 14. mm. Wing length: 12.7 mm.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Head</emphasis>
(Fig.
<figureCitation captionStart="Figures 64–69" captionStartId="F27" captionText="Figures 64 - 69. Mesembrius spp., head, frontal view 64 M. simplicipes Curran (♂) 65 M. strigilatus (Bezzi) (♂) 66 M. sulcus sp. nov. (♂) 67 M. tarsatus (Bigot) (♂) 68 M. tibialis sp. nov. (♂) 69 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures64-69" httpUri="https://binary.pensoft.net/fig/557488" pageId="0" pageNumber="1">68</figureCitation>
). Eyes bare; holoptic, eye contiguity approx. as long as length of ocellar triangle. Face yellow to orange with dark medial vitta; white pollinose; yellow-white pilose. Vertical triangle black; black pilose; yellow pollinose on medium third. Distance between lateral ocellus and eye margin slightly less than width of ocellus. Occiput black; yellow pilose with some shorter and thicker black pile near eye margin; white pollinose. Frontal triangle short; yellow-white; with some long black pile; white pollinose. Frontal prominence shiny black. Antenna black; postpedicel white pollinose; antennal arista orange-brown.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures189-192" httpUri="https://binary.pensoft.net/fig/557514" pageId="0" pageNumber="1" start="Figures 189–192" startId="F54">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 189-192.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., metaleg, posterior view
<emphasis bold="true" pageId="0" pageNumber="1">189</emphasis>
<taxonomicName lsidName="M. tarsatus" pageId="0" pageNumber="1" rank="species" species="tarsatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. tarsatus</emphasis>
</taxonomicName>
(Bigot) (♂)
<emphasis bold="true" pageId="0" pageNumber="1">190</emphasis>
<taxonomicName lsidName="M. ingratus" pageId="0" pageNumber="1" rank="species" species="ingratus">
<emphasis italics="true" pageId="0" pageNumber="1">M. ingratus</emphasis>
</taxonomicName>
(Loew) (♂)
<emphasis bold="true" pageId="0" pageNumber="1">191</emphasis>
<taxonomicName lsidName="M. arcuatus" pageId="0" pageNumber="1" rank="species" species="arcuatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. arcuatus</emphasis>
</taxonomicName>
sp. nov. (♂)
<emphasis bold="true" pageId="0" pageNumber="1">192</emphasis>
<taxonomicName lsidName="M. nigriceps" pageId="0" pageNumber="1" rank="species" species="nigriceps">
<emphasis italics="true" pageId="0" pageNumber="1">M. nigriceps</emphasis>
</taxonomicName>
Curran (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Thorax.</emphasis>
Scutum black with dorsally, in the anterior half, a pair of very faint yellow pollinose vittae. Scutellum black in anterior half, yellow-brown in posterior half; yellow pilose with, in the posterior half, some shorter black pile interspersed.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures193-196" httpUri="https://binary.pensoft.net/fig/557515" pageId="0" pageNumber="1" start="Figures 193–196" startId="F55">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 193-196.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., metaleg, dorsal view
<emphasis bold="true" pageId="0" pageNumber="1">193</emphasis>
<taxonomicName lsidName="M. platytarsis" pageId="0" pageNumber="1" rank="species" species="platytarsis">
<emphasis italics="true" pageId="0" pageNumber="1">M. platytarsis</emphasis>
</taxonomicName>
Curran syn. nov. (♂)
<emphasis bold="true" pageId="0" pageNumber="1">194</emphasis>
<taxonomicName lsidName="M. simplicipes" pageId="0" pageNumber="1" rank="species" species="simplicipes">
<emphasis italics="true" pageId="0" pageNumber="1">M. simplicipes</emphasis>
</taxonomicName>
Curran (♂). Metaleg, anterior view
<emphasis bold="true" pageId="0" pageNumber="1">195</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
(Loew) (nominal morph) (♂)
<emphasis bold="true" pageId="0" pageNumber="1">196</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
(Loew) (spined morph) (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Legs.</emphasis>
All legs chocolate-brown to black; distal ends black; other tarsi black. Proleg (Figs
<figureCitation captionStart="Figures 155–158" captionStartId="F46" captionText="Figures 155 - 158. Mesembrius, proleg, dorsal view 155 M. sulcus sp. nov. (♂) 156 M. tibialis sp. nov. (♂) 157 M. arcuatus sp. nov. (♂) 158 M. ingratus (Loew) (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures155-158" pageId="0" pageNumber="1">156</figureCitation>
,
<figureCitation 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">165</figureCitation>
): Femur dorsoventrally flattened; with apical pile brush of long dense and curved thick black pile dorsally and thick yellow pile ventrally; ventrally with long black and shorter yellow pile. Tibia black; with long black pile. Basitarsus black and orange; with tuft of black pile on posterior side. Tarsi 2-4 black, tarsomere 5 white. Mesoleg (Fig.
<figureCitation captionStart="Figures 177–180" captionStartId="F51" captionText="Figures 177 - 180. Mesembrius spp., mesoleg, dorsal view 177 M. tibialis sp. nov. (♂) 178 M. caffer (Loew) (♂) 179 M. capensis (Macquart) (♂) 180 M. madagascariensis Keiser (♂). Abbreviations: bt-basitarsus, fem-femur, tib-tibia." figureDoi="10.3897/zookeys.1046.57052.figures177-180" httpUri="https://binary.pensoft.net/fig/557511" pageId="0" pageNumber="1">177</figureCitation>
): Femur with long yellow pile posterodorsally; short black pile ventroproximally. Tibia curved; proximal half compressed. Metaleg (Fig.
<figureCitation 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">188</figureCitation>
): Femur with very long and thin yellow pile, especially on anterior and posterior side; with shorter black pile ventrally and posteriorly. Tibia with long black pile; without groove on posterior side.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures197-200" httpUri="https://binary.pensoft.net/fig/557516" pageId="0" pageNumber="1" start="Figures 197–200" startId="F56">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 197-200.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., metaleg, ventral view
<emphasis bold="true" pageId="0" pageNumber="1">197</emphasis>
<taxonomicName lsidName="M. strigilatus" pageId="0" pageNumber="1" rank="species" species="strigilatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. strigilatus</emphasis>
</taxonomicName>
(Bezzi) (♂). Metaleg, ventral view
<emphasis bold="true" pageId="0" pageNumber="1">198</emphasis>
<taxonomicName lsidName="M. minor" pageId="0" pageNumber="1" rank="species" species="minor">
<emphasis italics="true" pageId="0" pageNumber="1">M. minor</emphasis>
</taxonomicName>
(Bezzi) (♂). Metaleg, frontal view
<emphasis bold="true" pageId="0" pageNumber="1">199</emphasis>
<taxonomicName lsidName="M. copelandi" pageId="0" pageNumber="1" rank="species" species="copelandi">
<emphasis italics="true" pageId="0" pageNumber="1">M. copelandi</emphasis>
</taxonomicName>
sp. nov. (♂). Metaleg, posterior view
<emphasis bold="true" pageId="0" pageNumber="1">200</emphasis>
<taxonomicName lsidName="M. senegalensis" pageId="0" pageNumber="1" rank="species" species="senegalensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. senegalensis</emphasis>
</taxonomicName>
(Macquart) (♀). Abbreviations: bt-basitarsus, fem-femur, tib-tibia.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Wing</emphasis>
(Fig.
<figureCitation captionStart="Figures 147–150" captionStartId="F44" captionText="Figures 147 - 150. Mesembrius spp., right wing 147 M. sulcus sp. nov. (♂) 148 M. tarsatus (Bigot) (♂) 149 M. tibialis sp. nov. (♂) 150 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures147-150" httpUri="https://binary.pensoft.net/fig/557505" pageId="0" pageNumber="1">149</figureCitation>
). Entire wing uniformly dense microtrichose.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures201-204" httpUri="https://binary.pensoft.net/fig/557517" pageId="0" pageNumber="1" start="Figures 201–204" startId="F57">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 201-204.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., metaleg, anterior view
<emphasis bold="true" pageId="0" pageNumber="1">201</emphasis>
<taxonomicName lsidName="M. chapini" pageId="0" pageNumber="1" rank="species" species="chapini">
<emphasis italics="true" pageId="0" pageNumber="1">M. chapini</emphasis>
</taxonomicName>
Curran (♀). Metaleg, posterior view
<emphasis bold="true" pageId="0" pageNumber="1">202</emphasis>
<taxonomicName lsidName="M. regulus" pageId="0" pageNumber="1" rank="species" species="regulus">
<emphasis italics="true" pageId="0" pageNumber="1">M. regulus</emphasis>
</taxonomicName>
(Hull) (♀)
<emphasis bold="true" pageId="0" pageNumber="1">203</emphasis>
<taxonomicName lsidName="M. strigilatus" pageId="0" pageNumber="1" rank="species" species="strigilatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. strigilatus</emphasis>
</taxonomicName>
(Bezzi) (♀). Metaleg, anterior view
<emphasis bold="true" pageId="0" pageNumber="1">204</emphasis>
<taxonomicName lsidName="M. minor" pageId="0" pageNumber="1" rank="species" species="minor">
<emphasis italics="true" pageId="0" pageNumber="1">M. minor</emphasis>
</taxonomicName>
(Bezzi) (♀). Abbreviations: fem-femur.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Abdomen</emphasis>
(Fig.
<figureCitation captionStart="Figures 101–106" captionStartId="F34" captionText="Figures 101 - 106. Mesembrius spp., abdomen, dorsal view 101 M. simplicipes Curran (♂) 102 M. strigilatus (Bezzi) (♂) 103 M. sulcus sp. nov. (♂) 104 M. tarsatus (Bigot) (♂) 105 M. tibialis sp. nov. (♂) 106 M. vockerothi sp. nov. (♂)." figureDoi="10.3897/zookeys.1046.57052.figures101-106" httpUri="https://binary.pensoft.net/fig/557495" pageId="0" pageNumber="1">105</figureCitation>
). Tergite II with a pair of very large yellow, rounded maculae; black marking hourglass-shaped; yellow pilose except for short, black pile on the posterior black marking; posterior marking white pollinose. Tergite III and IV with orange fascia; short orange pile in medial part of tergites; long yellow-orange pilose on lateral sides; with white pollinose triangular posterior area.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures205-216" httpUri="https://binary.pensoft.net/fig/557518" pageId="0" pageNumber="1" start="Figures 205–216" startId="F58">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 205-216.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., male genitalia, lateral view
<emphasis bold="true" pageId="0" pageNumber="1">205</emphasis>
<taxonomicName lsidName="M. arcuatus" pageId="0" pageNumber="1" rank="species" species="arcuatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. arcuatus</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">206</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
(Loew) (nominal morph)
<emphasis bold="true" pageId="0" pageNumber="1">207</emphasis>
<taxonomicName lsidName="M. caffer" pageId="0" pageNumber="1" rank="species" species="caffer">
<emphasis italics="true" pageId="0" pageNumber="1">M. caffer</emphasis>
</taxonomicName>
(Loew) (spined morph)
<emphasis bold="true" pageId="0" pageNumber="1">208</emphasis>
<taxonomicName lsidName="M. ctenifer" pageId="0" pageNumber="1" rank="species" species="ctenifer">
<emphasis italics="true" pageId="0" pageNumber="1">M. ctenifer</emphasis>
</taxonomicName>
Hull syn. nov.
<emphasis bold="true" pageId="0" pageNumber="1">209</emphasis>
<taxonomicName lsidName="M. capensis" pageId="0" pageNumber="1" rank="species" species="capensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. capensis</emphasis>
</taxonomicName>
(Macquart)
<emphasis bold="true" pageId="0" pageNumber="1">210</emphasis>
<taxonomicName lsidName="M. chapini" pageId="0" pageNumber="1" rank="species" species="chapini">
<emphasis italics="true" pageId="0" pageNumber="1">M. chapini</emphasis>
</taxonomicName>
Curran
<emphasis bold="true" pageId="0" pageNumber="1">211</emphasis>
<taxonomicName lsidName="M. copelandi" pageId="0" pageNumber="1" rank="species" species="copelandi">
<emphasis italics="true" pageId="0" pageNumber="1">M. copelandi</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">212</emphasis>
<taxonomicName lsidName="M. cyanipennis" pageId="0" pageNumber="1" rank="species" species="cyanipennis">
<emphasis italics="true" pageId="0" pageNumber="1">M. cyanipennis</emphasis>
</taxonomicName>
(Bezzi)
<emphasis bold="true" pageId="0" pageNumber="1">213</emphasis>
<taxonomicName lsidName="M. ingratus" pageId="0" pageNumber="1" rank="species" species="ingratus">
<emphasis italics="true" pageId="0" pageNumber="1">M. ingratus</emphasis>
</taxonomicName>
(Loew)
<emphasis bold="true" pageId="0" pageNumber="1">214</emphasis>
<taxonomicName lsidName="M. longipilosus" pageId="0" pageNumber="1" rank="species" species="longipilosus">
<emphasis italics="true" pageId="0" pageNumber="1">M. longipilosus</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">215</emphasis>
<taxonomicName lsidName="M. madagascariensis" pageId="0" pageNumber="1" rank="species" species="madagascariensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. madagascariensis</emphasis>
</taxonomicName>
Keiser
<emphasis bold="true" pageId="0" pageNumber="1">216</emphasis>
<taxonomicName lsidName="M. minor" pageId="0" pageNumber="1" rank="species" species="minor">
<emphasis italics="true" pageId="0" pageNumber="1">M. minor</emphasis>
</taxonomicName>
(Bezzi).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Genitalia</emphasis>
(Fig.
<figureCitation 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">227</figureCitation>
). Epandrium: Dorsal lobe of surstylus short, broadly rounded; covered in short black spines and some longer pile. Ventral lobe of surstylus straight; bare.
</paragraph>
<caption doi="10.3897/zookeys.1046.57052.figures217-228" httpUri="https://binary.pensoft.net/fig/557519" pageId="0" pageNumber="1" start="Figures 217–228" startId="F59">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figures 217-228.</emphasis>
<taxonomicName authorityName="Rondani" authorityYear="1857" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius</emphasis>
</taxonomicName>
spp., male genitalia, lateral view
<emphasis bold="true" pageId="0" pageNumber="1">217</emphasis>
<taxonomicName lsidName="M. nigriceps" pageId="0" pageNumber="1" rank="species" species="nigriceps">
<emphasis italics="true" pageId="0" pageNumber="1">M. nigriceps</emphasis>
</taxonomicName>
Curran
<emphasis bold="true" pageId="0" pageNumber="1">218</emphasis>
<taxonomicName lsidName="M. perforatus" pageId="0" pageNumber="1" rank="species" species="perforatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. perforatus</emphasis>
</taxonomicName>
(Speiser)
<emphasis bold="true" pageId="0" pageNumber="1">219</emphasis>
<taxonomicName lsidName="M. platytarsis" pageId="0" pageNumber="1" rank="species" species="platytarsis">
<emphasis italics="true" pageId="0" pageNumber="1">M. platytarsis</emphasis>
</taxonomicName>
Curran syn. nov.
<emphasis bold="true" pageId="0" pageNumber="1">220</emphasis>
<taxonomicName lsidName="M. regulus" pageId="0" pageNumber="1" rank="species" species="regulus">
<emphasis italics="true" pageId="0" pageNumber="1">M. regulus</emphasis>
</taxonomicName>
(Hull)
<emphasis bold="true" pageId="0" pageNumber="1">221</emphasis>
<taxonomicName lsidName="M. rex" pageId="0" pageNumber="1" rank="species" species="rex">
<emphasis italics="true" pageId="0" pageNumber="1">M. rex</emphasis>
</taxonomicName>
Curran
<emphasis bold="true" pageId="0" pageNumber="1">222</emphasis>
<taxonomicName lsidName="M. senegalensis" pageId="0" pageNumber="1" rank="species" species="senegalensis">
<emphasis italics="true" pageId="0" pageNumber="1">M. senegalensis</emphasis>
</taxonomicName>
(Macquart)
<emphasis bold="true" pageId="0" pageNumber="1">223</emphasis>
<taxonomicName lsidName="M. simplicipes" pageId="0" pageNumber="1" rank="species" species="simplicipes">
<emphasis italics="true" pageId="0" pageNumber="1">M. simplicipes</emphasis>
</taxonomicName>
Curran
<emphasis bold="true" pageId="0" pageNumber="1">224</emphasis>
<taxonomicName lsidName="M. strigilatus" pageId="0" pageNumber="1" rank="species" species="strigilatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. strigilatus</emphasis>
</taxonomicName>
(Bezzi)
<emphasis bold="true" pageId="0" pageNumber="1">225</emphasis>
<taxonomicName lsidName="M. sulcus" pageId="0" pageNumber="1" rank="species" species="sulcus">
<emphasis italics="true" pageId="0" pageNumber="1">M. sulcus</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">226</emphasis>
<taxonomicName lsidName="M. tarsatus" pageId="0" pageNumber="1" rank="species" species="tarsatus">
<emphasis italics="true" pageId="0" pageNumber="1">M. tarsatus</emphasis>
</taxonomicName>
(Bigot)
<emphasis bold="true" pageId="0" pageNumber="1">227</emphasis>
<taxonomicName lsidName="M. tibialis" pageId="0" pageNumber="1" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">M. tibialis</emphasis>
</taxonomicName>
sp. nov
<emphasis bold="true" pageId="0" pageNumber="1">. 228</emphasis>
<taxonomicName lsidName="M. vockerothi" pageId="0" pageNumber="1" rank="species" species="vockerothi">
<emphasis italics="true" pageId="0" pageNumber="1">M. vockerothi</emphasis>
</taxonomicName>
sp. nov.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="female">
<paragraph pageId="0" pageNumber="1">Female.</paragraph>
<paragraph pageId="0" pageNumber="1">Unknown.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="distribution">
<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="1">Togo.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="comments">
<paragraph pageId="0" pageNumber="1">Comments.</paragraph>
<paragraph pageId="0" pageNumber="1">This is a new species that is only known from three males from Kloto Forest, Togo.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="etymology">
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="1">
The specific epithet
<taxonomicName authorityName="Jordaens, Goergen &amp; De Meyer" authorityYear="2021" class="Insecta" family="Syrphidae" genus="Mesembrius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesembrius tibialis" order="Diptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="tibialis">
<emphasis italics="true" pageId="0" pageNumber="1">Mesembrius tibialis</emphasis>
</taxonomicName>
is derived from the Latin word
<emphasis italics="true" pageId="0" pageNumber="1">tibia</emphasis>
(pertaining to the tibia) and was chosen in reference to the mesotibia, which is curved and proximally compressed. It is to be treated as an adjective (nominative singular masculine).
</paragraph>
</subSubSection>
</treatment>
</document>
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