treatments-xml/data/F7/61/8E/F7618E0516F5509BA054731C3FD59D5B.xml

<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1003.56557" ID-GBIF-Dataset="1035018b-1a43-4681-8ba9-ca62c8bb4ee8" ID-PMC="PMC7752890" ID-Pensoft-Pub="1313-2970-1003-83" ID-Pensoft-UUID="3CD12B279B9C50768125F2697B2F0E98" ID-PubMed="33384563" ID-ZooBank="5D883EC653064AC3A0D78CA867324596" ModsDocID="1313-2970-1003-83" checkinTime="1607975014278" checkinUser="pensoft" docAuthor="Meyer, Marc De, Goergen, Georg &amp; Jordaens, Kurt" docDate="2020" docId="F7618E0516F5509BA054731C3FD59D5B" docLanguage="en" docName="ZooKeys 1003: 83-160" docOrigin="ZooKeys 1003" docPubDate="2020-12-14" docSource="http://dx.doi.org/10.3897/zookeys.1003.56557" docTitle="Senaspis umbrifera" docType="treatment" docVersion="4" id="3CD12B279B9C50768125F2697B2F0E98" lastPageNumber="83" masterDocId="3CD12B279B9C50768125F2697B2F0E98" masterDocTitle="Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae)" masterLastPageNumber="160" masterPageNumber="83" pageNumber="83" updateTime="1668146589315" updateUser="ExternalLinkService">
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<mods:titleInfo>
<mods:title>Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae)</mods:title>
</mods:titleInfo>
<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:nameIdentifier type="email">marc.de.meyer@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 of Tropical Agriculture, 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>Jordaens, Kurt</mods:namePart>
<mods:affiliation>Royal Museum for Central Africa, Invertebrates Section and JEMU, Leuvensesteenweg 13, B 3080 Tervuren, Belgium</mods:affiliation>
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<mods:title>ZooKeys</mods:title>
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<mods:date>2020</mods:date>
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<mods:number>2020-12-14</mods:number>
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<mods:detail type="volume">
<mods:number>1003</mods:number>
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<mods:start>83</mods:start>
<mods:end>160</mods:end>
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<mods:url>http://dx.doi.org/10.3897/zookeys.1003.56557</mods:url>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1003.56557</mods:identifier>
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<treatment ID-GBIF-Taxon="174795551" LSID="urn:lsid:plazi:treatment:F7618E0516F5509BA054731C3FD59D5B" httpUri="http://treatment.plazi.org/id/F7618E0516F5509BA054731C3FD59D5B" lastPageNumber="83" pageId="0" pageNumber="83">
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<paragraph pageId="0" pageNumber="83">
<taxonomicName LSID="F7618E05-16F5-509B-A054-731C3FD59D5B" authority="(Walker, 1849)" baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">Senaspis umbrifera (Walker, 1849)</taxonomicName>
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">Figs 9</figureCitation>
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">, 10</figureCitation>
<figureCitation captionStart="Figures 40–43" captionStartId="F14" captionText="Figures 40 - 43. Head, frontal and lateral view S. nr umbrifera (Walker) (40, 41 ♂ 42, 43 ♀)." figureDoi="10.3897/zookeys.1003.56557.figures40-43" httpUri="https://binary.pensoft.net/fig/486710" pageId="0" pageNumber="83">, 40-43</figureCitation>
<figureCitation captionStart="Figures 44–47" captionStartId="F15" captionText="Figures 44 - 47. Head, frontal and lateral view 44, 45 S. umbrifera (Walker) (♂ holotype) 46, 47 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures44-47" httpUri="https://binary.pensoft.net/fig/486711" pageId="0" pageNumber="83">, 44-45</figureCitation>
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">, 60</figureCitation>
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">, 61</figureCitation>
<figureCitation captionStart="Figures 74–76" captionStartId="F22" captionText="Figures 74 - 76. Senaspis species, right wing 74 S. melanthysana (Speiser) (♂) 75 S. nigrita (Bigot) (♂) 76 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures74-76" httpUri="https://binary.pensoft.net/fig/486718" pageId="0" pageNumber="83">, 76</figureCitation>
<figureCitation captionStart="Figures 77–79" captionStartId="F23" captionText="Figures 77 - 79. Senaspis species, right wing 77 S. umbrifera (Walker) (♂ holotype) 78 S. xanthorrhoea (Bezzi) (♂) 79 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures77-79" httpUri="https://binary.pensoft.net/fig/486719" pageId="0" pageNumber="83">, 77</figureCitation>
<figureCitation captionStart="Figures 86–90" captionStartId="F25" captionText="Figures 86 - 90. Senaspis species, hind leg, anterior view 86 S. melanthysana (Speiser) (♂) 87 S. nigrita (Bigot) (♂) 88 S. nr umbrifera (Walker) (♂) 89 S. xanthorrhoea (Bezzi) (♂) 90 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures86-90" httpUri="https://binary.pensoft.net/fig/486721" pageId="0" pageNumber="83">, 88</figureCitation>
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">, 98</figureCitation>
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">, 99</figureCitation>
<figureCitation captionStart="Figures 102–113" captionStartId="F28" captionText="Figures 102 - 113. Senaspis species, male terminalia 102 - 108, 110, 112 dorsal view 109, 111, 113 lateral view 102 S. dentipes (Macquart) 103 S. dibapha (Walker) 104 S. elliotii Austen 105 S. flaviceps Macquart 106 S. haemorrhoa (Gerstaecker) 107 S. nigrita (Bigot) 108, 109 S. melanthysana (Speiser) 110, 111 S. umbrifera (Walker) (holotype) 112, 113 S. nr umbrifera (Walker)." figureDoi="10.3897/zookeys.1003.56557.figures102-113" httpUri="https://binary.pensoft.net/fig/486724" pageId="0" pageNumber="83">, 110-113</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="reference_group">
<paragraph pageId="0" pageNumber="83">
<taxonomicName class="Insecta" family="Syrphidae" genus="Merodon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Merodon umbrifer" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifer">Merodon umbrifer</taxonomicName>
Walker, 1849: 601.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="differential diagnosis">
<paragraph pageId="0" pageNumber="83">Differential diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="83">
A dark species (Figs 
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">9</figureCitation>
, 
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">10</figureCitation>
) without distinct macula on wing but with darker medial area (Figs 
<figureCitation captionStart="Figures 74–76" captionStartId="F22" captionText="Figures 74 - 76. Senaspis species, right wing 74 S. melanthysana (Speiser) (♂) 75 S. nigrita (Bigot) (♂) 76 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures74-76" httpUri="https://binary.pensoft.net/fig/486718" pageId="0" pageNumber="83">76</figureCitation>
, 
<figureCitation captionStart="Figures 77–79" captionStartId="F23" captionText="Figures 77 - 79. Senaspis species, right wing 77 S. umbrifera (Walker) (♂ holotype) 78 S. xanthorrhoea (Bezzi) (♂) 79 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures77-79" httpUri="https://binary.pensoft.net/fig/486719" pageId="0" pageNumber="83">77</figureCitation>
). It can be differentiated from 
<taxonomicName lsidName="S. nigrita" pageId="0" pageNumber="83" rank="species" species="nigrita">
<emphasis italics="true" pageId="0" pageNumber="83">S. nigrita</emphasis>
</taxonomicName>
by the basal half of the scutellum largely concolourous with the scutum (Figs 
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">60</figureCitation>
, 
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">61</figureCitation>
) (scutellum largely yellow, contrasting with dark scutum in 
<taxonomicName lsidName="S. nigrita" pageId="0" pageNumber="83" rank="species" species="nigrita">
<emphasis italics="true" pageId="0" pageNumber="83">S. nigrita</emphasis>
</taxonomicName>
; Fig. 
<figureCitation captionStart="Figures 56–59" captionStartId="F18" captionText="Figures 56 - 59. Senaspis species, thorax, dorsal view 56 S. flaviceps Macquart (♂) 57 S. haemorrhoa (Gerstaecker) (♂) 58 S. melanthysana (Speiser) (♂) 59 S. nigrita (Bigot) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures56-59" httpUri="https://binary.pensoft.net/fig/486714" pageId="0" pageNumber="83">59</figureCitation>
). It resembles strongly 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
but can be differentiated by the following characters: metafemur (Fig. 
<figureCitation captionStart="Figures 86–90" captionStartId="F25" captionText="Figures 86 - 90. Senaspis species, hind leg, anterior view 86 S. melanthysana (Speiser) (♂) 87 S. nigrita (Bigot) (♂) 88 S. nr umbrifera (Walker) (♂) 89 S. xanthorrhoea (Bezzi) (♂) 90 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures86-90" httpUri="https://binary.pensoft.net/fig/486721" pageId="0" pageNumber="83">88</figureCitation>
) strongly thickened and distinctly concave ventrally (moderately thickened and straight to slight convex ventrally in 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
; Fig. 
<figureCitation captionStart="Figures 86–90" captionStartId="F25" captionText="Figures 86 - 90. Senaspis species, hind leg, anterior view 86 S. melanthysana (Speiser) (♂) 87 S. nigrita (Bigot) (♂) 88 S. nr umbrifera (Walker) (♂) 89 S. xanthorrhoea (Bezzi) (♂) 90 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures86-90" httpUri="https://binary.pensoft.net/fig/486721" pageId="0" pageNumber="83">86</figureCitation>
); abdomen with mixed short pale and dark pile long lateral margins (Figs 
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">98</figureCitation>
, 
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">99</figureCitation>
) (long dark pile in 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
; Fig. 
<figureCitation captionStart="Figures 91–96" captionStartId="F26" captionText="Figures 91 - 96. Senaspis species, abdomen, dorsal view 91 S. dentipes (Macquart) (♂) 92 S. dibapha (Walker) (♂) 93 S. elliotii Austen (♂) 94 S. flaviceps Macquart (♂) 95 S. haemorrhoa (Gerstaecker) (♂) 96 S. melanthysana (Speiser) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures91-96" httpUri="https://binary.pensoft.net/fig/486722" pageId="0" pageNumber="83">96</figureCitation>
); long pale pile on sterna, except on sterna IV and V where dark (Fig. 
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">10</figureCitation>
) (long dark pile on all sterna in 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
; Fig. 
<figureCitation captionStart="Figures 5, 6" captionStartId="F3" captionText="Figures 5, 6. Senaspis species, habitus, lateral view 5 S. haemorrhoa (Gerstaecker) (♂) 6 S. melanthysana (Speiser) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures5-6" httpUri="https://binary.pensoft.net/fig/486699" pageId="0" pageNumber="83">6</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="materials_examined">
<paragraph pageId="0" pageNumber="83">Examined material.</paragraph>
<paragraph pageId="0" pageNumber="83">
<taxonomicName class="Insecta" family="Syrphidae" genus="Merodon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Merodon umbrifer" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifer">
<emphasis italics="true" pageId="0" pageNumber="83">Merodon umbrifer</emphasis>
</taxonomicName>
Walker: 
<emphasis bold="true" italics="true" pageId="0" pageNumber="83">Holotype</emphasis>
, male, 
<normalizedToken originalValue="“Type”">&quot;Type&quot;</normalizedToken>
&quot;Holo- // type&quot; &quot;38 // 11. 8 // 292&quot; &quot;HOLOTYPE ♂ of // 
<taxonomicName class="Insecta" family="Syrphidae" genus="Merodon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Merodon" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="genus">Merodon</taxonomicName>
// 
<taxonomicName class="Insecta" family="Syrphidae" genus="Merodon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Merodon umbrifer" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifer">Merodon umbrifer</taxonomicName>
Walker // SIERA LEONE // Pres by the Rev. // D.F. Morgan&quot; &quot;merodon // 
<taxonomicName class="Insecta" family="Syrphidae" genus="Merodon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Merodon umbrifer" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifer">Merodon umbrifer</taxonomicName>
. // Wlk.&quot; 
<normalizedToken originalValue="“NHMUK010369875”">&quot;NHMUK010369875&quot;</normalizedToken>
[NHMUK].
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="materials_examined">
<paragraph pageId="0" pageNumber="83">Other material.</paragraph>
<paragraph pageId="0" pageNumber="83">
(belonging to 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">Senaspis near umbrifera</taxonomicName>
; see Comments). Benin • 1♀; Niaouli; 10 Dec. 2013; K. Jordaens and G. Goergen leg.; KMMA. Central African Republic • 1♀; Swane de 
<normalizedToken originalValue="Bébé">Bebe</normalizedToken>
; 7 Sep. 1970; L. Matile leg.; MNHN. Democratic Republic of the Congo • 1♀; Bamanya; 1-15 Sep. 1963; P. Hulstaert leg.; KMMA • 1♀; Banningville [= Bandundu]; Aug. 1985; A. Fain leg.; KMMA • 1♀; Basankusu; 1949; O.L.V. ten Bunderen leg.; KMMA • 1♂ 1♀; Bokuma; Jul. 1952; P. Lootens leg.; KMMA • 1♂; Eala; Jan. 1935; J. 
<normalizedToken originalValue="Ghesquière">Ghesquiere</normalizedToken>
leg.; CNC • 1♂; same collection data as for preceding; 26 Jul. 1935; KBIN • 1♀; same collection data as for preceding; Oct. 1935 • 1♂; same collection data as for preceding; Aug. 1935; KMMA • 2♂♂; Eala, Sep. 1935; KBIN • 1♂; Eala; KMMA • 1♂; Ituri Forest; Jul. 1976; E.B. Babyetagara leg.; CNC • Kavumu to Kabuga road, Kivu; May 1951; H. Bomans leg.; KMMA • 1♀; Kapanga, Lulua; Nov. 1932; F.G. Overlaet leg.; CNC • 1♂; Leopoldville [= Kinshasa]; 1911; Mouchet leg.; KMMA • 1♂ 1♀; Medje; Ituri; Sep. 1910; Lang and Chapin leg.; AMNH • 1♀; same collection data as for preceding; 1-10 Aug. 1910; KMMA • 1♂; same collection data as for preceding; 11-24 Aug. 1910 • 1♂; same collection data as for preceding; 25-30 Aug. 1910 • 1♂; same collection data as for preceding; 26-30 Sep. 1910 • 1♀; same collection data as for preceding; Sep. 1910 • 1♂; Niangara; Nov. 1910; Lang and Chapin leg.; AMNH • 1♂; Poko; Aug. 1913; C.J. Wainwright leg.; NHMUK • 1♀; Rwankwi, N of Lake Kivu; Apr. 1948; J May Leroy leg.; KMMA • 1♀; Shabunda, Lubongola; 1939; Hautmann leg.; KMMA • 1♀; Stanleyville [= Kisangani]; Mar. 1915; Lang and Chapin leg.; AMNH • 2♀♀; same collection data as for preceding; KMMA. Equatorial Guinea • 1♂; Fernando Po [= Bioko Island], Punta Frailes; Oct.-Nov. 1901; L. Fea leg.; MCSNG. Uganda • 1♂; Budongo forest, nr Lake Albert; 1 Apr. 1972; E.B. Babyetagara leg.; CNC • 1♂; Bwindi Impenetrable Forest National Park, Kigezi; 1-10 Jun. 1972; E.B. Babyetagara leg.; CNC; 1♀; Entebbe; 17 Jun. 1972; H. Falke leg.; CNC • 1♀; Entebbe; 1-11 Sep. 1911; S.A. Neave leg.; NHMUK • 1♀; same collection data as for preceding; 12-20 Jan. 1912. • 1♀; Kayonza Forest, Kigezi; May 1972; E.B. Babyetagara leg.; CNC.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="description">
<paragraph pageId="0" pageNumber="83">Description.</paragraph>
<paragraph pageId="0" pageNumber="83">Body length: 12.7-17.5 mm (type specimen: 12.7 mm). Wing length: 9.0-12.8 mm (type specimen 9.0 mm).</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" pageId="0" pageNumber="83">Male</emphasis>
(Figs 
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">9</figureCitation>
, 
<figureCitation captionStart="Figures 9, 10" captionStartId="F5" captionText="Figures 9, 10. Senaspis species, habitus, lateral view 9 S. umbrifera (Walker) (♂ holotype) 10 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures9-10" httpUri="https://binary.pensoft.net/fig/486701" pageId="0" pageNumber="83">10</figureCitation>
) (based on type of 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis umbrifera</emphasis>
</taxonomicName>
and non-type material listed above as 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">Senaspis near umbrifera</taxonomicName>
). Head (Figs 
<figureCitation captionStart="Figures 40–43" captionStartId="F14" captionText="Figures 40 - 43. Head, frontal and lateral view S. nr umbrifera (Walker) (40, 41 ♂ 42, 43 ♀)." figureDoi="10.3897/zookeys.1003.56557.figures40-43" httpUri="https://binary.pensoft.net/fig/486710" pageId="0" pageNumber="83">40</figureCitation>
, 
<figureCitation captionStart="Figures 40–43" captionStartId="F14" captionText="Figures 40 - 43. Head, frontal and lateral view S. nr umbrifera (Walker) (40, 41 ♂ 42, 43 ♀)." figureDoi="10.3897/zookeys.1003.56557.figures40-43" httpUri="https://binary.pensoft.net/fig/486710" pageId="0" pageNumber="83">41</figureCitation>
, 
<figureCitation captionStart="Figures 44–47" captionStartId="F15" captionText="Figures 44 - 47. Head, frontal and lateral view 44, 45 S. umbrifera (Walker) (♂ holotype) 46, 47 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures44-47" httpUri="https://binary.pensoft.net/fig/486711" pageId="0" pageNumber="83">44</figureCitation>
, 
<figureCitation captionStart="Figures 44–47" captionStartId="F15" captionText="Figures 44 - 47. Head, frontal and lateral view 44, 45 S. umbrifera (Walker) (♂ holotype) 46, 47 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures44-47" httpUri="https://binary.pensoft.net/fig/486711" pageId="0" pageNumber="83">45</figureCitation>
). Eye bare; holoptic, eye contiguity for distance equal to length or 1.5 times length of ocellar triangle, facets dorsally slightly larger, at most twice as large in diameter as ventral ones. Frons black-brown; largely subshiny with black pollinosity in dorsal fifth only, along eye margins narrowly silver-grey pollinose; dispersed short dark pile, dorsally somewhat longer. Face brown to black-brown; subshiny with pale brownish to greyish pollinosity, in parts more densely so, medial part and especially facial tubercle largely devoid of pollinosity; pollinose parts with dispersed long pale pile; facial tubercle strongly pronounced. Gena colour and pollinosity as ventral lateral margins of face; with short to long pale pile. Occiput black-brown, covered with dull grey pollinosity; with dispersed pale pile except dorsally where sometimes darker yellow to black. Antennal segments black-brown, arista orange-brown to brown.
</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" italics="true" pageId="0" pageNumber="83">Thorax</emphasis>
(Figs 
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">60</figureCitation>
, 
<figureCitation captionStart="Figures 60–63" captionStartId="F19" captionText="Figures 60 - 63. Senaspis species, thorax, dorsal view 60 S. nr umbrifera (Walker) (♂) 61 S. umbrifera (Walker) (♂ holotype) 62 S. xanthorrhoea (Bezzi) (♂) 63 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures60-63" httpUri="https://binary.pensoft.net/fig/486715" pageId="0" pageNumber="83">61</figureCitation>
). Scutum subshiny black, with brownish to brownish grey pollinosity; with short pale pile, usually intermixed with dispersed black pile. Scutellum apical margin weakly rounded, distinctly marginate, three times as wide as long; pale brownish, anterior margin narrowly darker brown; with short pale pile, usually with dark pile on disc (sometimes entirely pale pilose), pilosity along apical margin somewhat longer. Pleura ground colour black-brown, greyish pollinose, anepimeron less so; covered with dispersed long pale pile except on meron, dorsomedial anepimeron, ventral part of katepimeron, anterior part of katepisternum and anterior anepisternum; pilosity on posterior anepisternum more conspicuous.
</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" italics="true" pageId="0" pageNumber="83">Legs</emphasis>
. Brown to black-brown, sometimes more reddish brown; with short black pile, along posterior margin of pro- and mesofemora with longer pile, sometimes more pale in basal part; along ventral margin of metafemur with longer dark pile, basally with anterodorsal patch of longer pale pile. Metaleg (Fig. 
<figureCitation captionStart="Figures 86–90" captionStartId="F25" captionText="Figures 86 - 90. Senaspis species, hind leg, anterior view 86 S. melanthysana (Speiser) (♂) 87 S. nigrita (Bigot) (♂) 88 S. nr umbrifera (Walker) (♂) 89 S. xanthorrhoea (Bezzi) (♂) 90 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures86-90" httpUri="https://binary.pensoft.net/fig/486721" pageId="0" pageNumber="83">88</figureCitation>
), femur distinctly thickened and moderately curved, with one distinct ventral swelling in apical fifth, short black pile more dense where swollen; tibia slightly bent at base, thickened and curved, pile along ventral margin in apical half to two-thirds longer and more dense.
</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" italics="true" pageId="0" pageNumber="83">Wing</emphasis>
(Figs 
<figureCitation captionStart="Figures 74–76" captionStartId="F22" captionText="Figures 74 - 76. Senaspis species, right wing 74 S. melanthysana (Speiser) (♂) 75 S. nigrita (Bigot) (♂) 76 S. nr umbrifera (Walker) (♂)." figureDoi="10.3897/zookeys.1003.56557.figures74-76" httpUri="https://binary.pensoft.net/fig/486718" pageId="0" pageNumber="83">76</figureCitation>
, 
<figureCitation captionStart="Figures 77–79" captionStartId="F23" captionText="Figures 77 - 79. Senaspis species, right wing 77 S. umbrifera (Walker) (♂ holotype) 78 S. xanthorrhoea (Bezzi) (♂) 79 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures77-79" httpUri="https://binary.pensoft.net/fig/486719" pageId="0" pageNumber="83">77</figureCitation>
). Faint yellowish brown tinge, more pronounced in medial part cell r1, basal part r2+3 and distal part br; towards posterior margin and apex more greyish. Calypters yellow-white to pale brown, with fringe of yellow-white pile. Cell r1 closed; if petiolate than petiole at most approx. as long as half the height of base of stigma. Vein R4+5 sinuate but not appendiculate.
</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" italics="true" pageId="0" pageNumber="83">Abdomen</emphasis>
(Figs 
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">98</figureCitation>
, 
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">99</figureCitation>
). Uniformly subshiny red-brown to black-brown, anterolateral parts of tergum II sometimes less dark; sometimes indistinct black-brown pollinose medial macula along anterior margin of terga II and III; with short dark pile, except tergum 1, and anterolateral parts of tergum II where pale pile; lateral margins usually dark pilose, at most tergum IV partly pale pilose and terga II and III mixed pale and dark pile. Type of 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis umbrifera</emphasis>
</taxonomicName>
lateral margins completely pale pilose (Fig. 
<figureCitation captionStart="Figures 97–101" captionStartId="F27" captionText="Figures 97 - 101. Senaspis species, abdomen, dorsal view 97 S. nigrita (Bigot) (♂) 98 S. umbrifera (Walker) (♂ holotype) 99 S. nr umbrifera (Walker) (♂) 100 S. xanthorrhoea (Bezzi) (♀) 101 S. pennata (Herve-Bazin) (♀)." figureDoi="10.3897/zookeys.1003.56557.figures97-99" httpUri="https://binary.pensoft.net/fig/486723" pageId="0" pageNumber="83">98</figureCitation>
). Postabdomen conspicuously swollen. Sterna with dispersed long pale pile, on sterna IV and V darker. Male genitalia as in Figs 
<figureCitation captionStart="Figures 102–113" captionStartId="F28" captionText="Figures 102 - 113. Senaspis species, male terminalia 102 - 108, 110, 112 dorsal view 109, 111, 113 lateral view 102 S. dentipes (Macquart) 103 S. dibapha (Walker) 104 S. elliotii Austen 105 S. flaviceps Macquart 106 S. haemorrhoa (Gerstaecker) 107 S. nigrita (Bigot) 108, 109 S. melanthysana (Speiser) 110, 111 S. umbrifera (Walker) (holotype) 112, 113 S. nr umbrifera (Walker)." figureDoi="10.3897/zookeys.1003.56557.figures102-113" httpUri="https://binary.pensoft.net/fig/486724" pageId="0" pageNumber="83">110-113</figureCitation>
(see Comments).
</paragraph>
<paragraph pageId="0" pageNumber="83">
<emphasis bold="true" pageId="0" pageNumber="83">Female</emphasis>
(based on material identified as 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">Senaspis near umbrifera</taxonomicName>
). As male except for the following character states. Head (Figs 
<figureCitation captionStart="Figures 40–43" captionStartId="F14" captionText="Figures 40 - 43. Head, frontal and lateral view S. nr umbrifera (Walker) (40, 41 ♂ 42, 43 ♀)." figureDoi="10.3897/zookeys.1003.56557.figures40-43" httpUri="https://binary.pensoft.net/fig/486710" pageId="0" pageNumber="83">42</figureCitation>
, 
<figureCitation captionStart="Figures 40–43" captionStartId="F14" captionText="Figures 40 - 43. Head, frontal and lateral view S. nr umbrifera (Walker) (40, 41 ♂ 42, 43 ♀)." figureDoi="10.3897/zookeys.1003.56557.figures40-43" httpUri="https://binary.pensoft.net/fig/486710" pageId="0" pageNumber="83">43</figureCitation>
), eye dichoptic, facets equal to subequal in size. Frons with black pollinose fascia in dorsal part for length at least equal to ocellar triangle, bordered by very narrow and less dense greyish-brown fascia. Scutellum, dark pile on disc less outspoken, more predominantly paly pilose. Wing, vein R4+5 sometimes very short appendiculate. Abdomen with dark pile along lateral margins of all terga.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="distribution">
<paragraph pageId="0" pageNumber="83">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="83">Benin, Central African Republic, Democratic Republic of the Congo, Equatorial Guinea, Sierra Leone, Uganda (but see Comments).</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="83" type="comments">
<paragraph pageId="0" pageNumber="83">Comments.</paragraph>
<paragraph pageId="0" pageNumber="83">
The type specimen of 
<taxonomicName lsidName="S. umbrifera" pageId="0" pageNumber="83" rank="species" species="umbrifera">
<emphasis italics="true" pageId="0" pageNumber="83">S. umbrifera</emphasis>
</taxonomicName>
originates from Sierra Leone. It is in poor condition and the male genitalia were dissected prior to our study; thus, we cannot exclude a mixing of genitalia with another specimen. When comparing the genitalia with some non-type material, some slight differences were observed regarding the shape of the surstyli, the most explicit difference being the shape of the surstyli in lateral view (curved and pointed in the type species (Fig. 
<figureCitation captionStart="Figures 102–113" captionStartId="F28" captionText="Figures 102 - 113. Senaspis species, male terminalia 102 - 108, 110, 112 dorsal view 109, 111, 113 lateral view 102 S. dentipes (Macquart) 103 S. dibapha (Walker) 104 S. elliotii Austen 105 S. flaviceps Macquart 106 S. haemorrhoa (Gerstaecker) 107 S. nigrita (Bigot) 108, 109 S. melanthysana (Speiser) 110, 111 S. umbrifera (Walker) (holotype) 112, 113 S. nr umbrifera (Walker)." figureDoi="10.3897/zookeys.1003.56557.figures102-113" httpUri="https://binary.pensoft.net/fig/486724" pageId="0" pageNumber="83">111</figureCitation>
); straight and not pointed in the other material (Fig. 
<figureCitation captionStart="Figures 102–113" captionStartId="F28" captionText="Figures 102 - 113. Senaspis species, male terminalia 102 - 108, 110, 112 dorsal view 109, 111, 113 lateral view 102 S. dentipes (Macquart) 103 S. dibapha (Walker) 104 S. elliotii Austen 105 S. flaviceps Macquart 106 S. haemorrhoa (Gerstaecker) 107 S. nigrita (Bigot) 108, 109 S. melanthysana (Speiser) 110, 111 S. umbrifera (Walker) (holotype) 112, 113 S. nr umbrifera (Walker)." figureDoi="10.3897/zookeys.1003.56557.figures102-113" httpUri="https://binary.pensoft.net/fig/486724" pageId="0" pageNumber="83">113</figureCitation>
) and similar to the shape observed in 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
(Fig. 
<figureCitation captionStart="Figures 102–113" captionStartId="F28" captionText="Figures 102 - 113. Senaspis species, male terminalia 102 - 108, 110, 112 dorsal view 109, 111, 113 lateral view 102 S. dentipes (Macquart) 103 S. dibapha (Walker) 104 S. elliotii Austen 105 S. flaviceps Macquart 106 S. haemorrhoa (Gerstaecker) 107 S. nigrita (Bigot) 108, 109 S. melanthysana (Speiser) 110, 111 S. umbrifera (Walker) (holotype) 112, 113 S. nr umbrifera (Walker)." figureDoi="10.3897/zookeys.1003.56557.figures102-113" httpUri="https://binary.pensoft.net/fig/486724" pageId="0" pageNumber="83">109</figureCitation>
). However, no major morphological differences could be observed and except for the differently shaped surstylus the type falls within the observed variability for the characters studied. The only other minor morphological difference observed is that the lateral margin of the abdominal terga of the type is covered with short pale pile while in all other specimens this is black or intermixed black and pale pile. Furthermore, the type is recognized by the entirely pale pile on the scutellum (variable in other specimens); the legs being more red-brown (brown to black-brown in others) and the calypters being yellow-white (yellow-white to pale brown in others). No additional specimens could be obtained from the same region while all non-type male specimens originate from Central Africa (Equatorial Guinea eastwards to Uganda). As the observed differences are very minor, we prefer to take a conservative position by provisionally listing all non-type material under 
<taxonomicName lsidName="S. umbrifera" pageId="0" pageNumber="83" rank="species" species="umbrifera">
<emphasis italics="true" pageId="0" pageNumber="83">S. umbrifera</emphasis>
</taxonomicName>
(listed as &quot; 
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">Senaspis near umbrifera</taxonomicName>
&quot;). We consider the morphological differences too minor to warrant describing it as a separate species and propose to await additional material, especially from western Africa before making a formal decision. The only differentiating character (pale pile along lateral margins of abdomen) is, however, incorporated in the identification key. All major structures are also illustrated both for the type specimen and representative non-type specimens.
</paragraph>
<paragraph pageId="0" pageNumber="83">
<taxonomicName baseAuthorityName="Walker" baseAuthorityYear="1849" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis umbrifera" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="umbrifera">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis umbrifera</emphasis>
</taxonomicName>
resembles 
<taxonomicName lsidName="S. melanthysana" pageId="0" pageNumber="83" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">S. melanthysana</emphasis>
</taxonomicName>
in most respect regarding body coloration and pilosity, and wing markings. However, a number of distinct differences could be discerned as pointed out in the key above: the lower calypter has a fringe of pale hairs (dark in 
<taxonomicName baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis melanthysana" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis melanthysana</emphasis>
</taxonomicName>
); the abdominal sterna I-III have long pale pile (dark in 
<taxonomicName baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis melanthysana" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis melanthysana</emphasis>
</taxonomicName>
), the lateral margins of the abdominal terga have short pale pile along most of their length (long dark pile in 
<taxonomicName baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis melanthysana" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis melanthysana</emphasis>
</taxonomicName>
), and the metafemur is strongly thickened and distinctly curved (moderately thickened and straight in 
<taxonomicName baseAuthorityName="Speiser" baseAuthorityYear="1913" class="Insecta" family="Syrphidae" genus="Senaspis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Senaspis melanthysana" order="Diptera" pageId="0" pageNumber="83" phylum="Arthropoda" rank="species" species="melanthysana">
<emphasis italics="true" pageId="0" pageNumber="83">Senaspis melanthysana</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
</treatment>
</document>