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<document id="DEAB508E1B1438D36F2DF091FB492671" ID-CLB-Dataset="20690" ID-DOI="10.11646/zootaxa.5099.2.1" ID-GBIF-Dataset="28877884-328e-446f-9e71-fc08016432e7" ID-ISSN="1175-5326" ID-Zenodo-Dep="6048483" ID-ZooBank="9889BA66-0E9D-424B-BD4D-DE835993CD0F" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1644581573912" checkinUser="plazi" docAuthor="Chatzimanolis, Stylianos" docDate="2022" docId="6408AC194D3BF87CFF2C5C9ECBB45F0B" docLanguage="en" docName="zootaxa.5099.2.1.pdf" docOrigin="Zootaxa 5099 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Xanthopygus max Blackwelder 1944" docType="treatment" docVersion="7" lastPageNumber="166" masterDocId="9831D4614D35F873FFBB5C09CA135931" masterDocTitle="A revision of the genus Xanthopygus Kraatz (Staphylinidae: Xanthopygina)" masterLastPageNumber="178" masterPageNumber="151" pageNumber="165" updateTime="1699309759584" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="8A06873A86823C56C65FE8D5057D45E6">A revision of the genus Xanthopygus Kraatz (Staphylinidae: Xanthopygina)</mods:title>
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<treatment id="6408AC194D3BF87CFF2C5C9ECBB45F0B" ID-DOI="http://doi.org/10.5281/zenodo.6309134" ID-GBIF-Taxon="193363577" ID-Zenodo-Dep="6309134" LSID="urn:lsid:plazi:treatment:6408AC194D3BF87CFF2C5C9ECBB45F0B" httpUri="http://treatment.plazi.org/id/6408AC194D3BF87CFF2C5C9ECBB45F0B" lastPageId="15" lastPageNumber="166" pageId="14" pageNumber="165">
<subSubSection id="A4BB4E844D3BF87DFF2C5C9EC84E5980" box="[151,605,151,178]" pageId="14" pageNumber="165" type="nomenclature">
<paragraph id="EC1E1D0F4D3BF87DFF2C5C9EC84E5980" blockId="14.[151,605,151,214]" box="[151,605,151,178]" pageId="14" pageNumber="165">
<heading id="B756AA634D3BF87DFF2C5C9EC84E5980" bold="true" box="[151,605,151,178]" fontSize="11" level="1" pageId="14" pageNumber="165" reason="1">
<taxonomicName id="2BA1668C4D3BF87DFF2C5C9EC84E5980" ID-CoL="5C7TD" authority="Blackwelder, 1944" authorityName="Blackwelder" authorityYear="1944" box="[151,605,151,178]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3BF87DFF2C5C9EC84E5980" bold="true" box="[151,605,151,178]" pageId="14" pageNumber="165">
<emphasis id="DED5C11D4D3BF87DFF2C5C9ECB615980" bold="true" box="[151,370,151,178]" italics="true" pageId="14" pageNumber="165">Xanthopygus max</emphasis>
<bibRefCitation id="883060FE4D3BF87DFEC15C9EC84E5980" author="Blackwelder, R. E." box="[378,605,151,177]" pageId="14" pageNumber="165" pagination="1 - 188" refId="ref19512" refString="Blackwelder, R. E. (1944) Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part 1. United States National Museum Bulletin, 185, 1 - 188. https: // doi. org / 10.5479 / si. 03629236.185. i" type="journal article" year="1944">Blackwelder, 1944</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="A4BB4E844D3BF87DFF2C5CB2CB4B59E7" box="[151,344,187,214]" pageId="14" pageNumber="165" type="description">
<paragraph id="EC1E1D0F4D3BF87DFF2C5CB2CB4B59E7" blockId="14.[151,605,151,214]" box="[151,344,187,214]" pageId="14" pageNumber="165">
(
<figureCitation id="749A018A4D3BF87DFF245CB2CAED59E4" box="[159,254,187,213]" captionStart="FIGURE 22" captionStartId="11.[151,250,1962,1986]" captionTargetBox="[195,1392,866,1938]" captionTargetId="figure-41@11.[195,1392,866,1938]" captionTargetPageId="11" captionText="FIGURE 22. Distribution map of X. luctuosus (Blanchard) (white squares), X. major (Bernhauer) (star), X. max Blackwelder (black squares) and X. oliveirae Lynch (circle)." figureDoi="http://doi.org/10.5281/zenodo.6048497" httpUri="https://zenodo.org/record/6048497/files/figure.png" pageId="14" pageNumber="165">Figs. 22</figureCitation>
,
<figureCitation id="749A018A4D3BF87DFEB25CB2CB4359E7" box="[265,336,187,214]" captionStart-0="FIGURES 3033" captionStart-1="FIGURES 3436" captionStartId-0="14.[151,264,1785,1809]" captionStartId-1="15.[151,264,1426,1450]" captionTargetBox-0="[153,1419,525,1762]" captionTargetBox-1="[151,1422,813,1396]" captionTargetId-0="figure-106@14.[153,1433,525,1762]" captionTargetId-1="figure-319@15.[151,1436,813,1403]" captionTargetPageId-0="14" captionTargetPageId-1="15" captionText-0="FIGURES 3033. Xanthopygus max Blackwelder. 30. Habitus photograph. 31. Pronotum. 32. Sternites 68. 33. Antenna. Not to scale." captionText-1="FIGURES 3436. Aedeagus of X. max Blackwelder. 34. Dorsal view. 35. Lateral view. 36. Detail of paramere, ventral view." figureDoi-0="http://doi.org/10.5281/zenodo.6048505" figureDoi-1="http://doi.org/10.5281/zenodo.6048507" httpUri-0="https://zenodo.org/record/6048505/files/figure.png" httpUri-1="https://zenodo.org/record/6048507/files/figure.png" pageId="14" pageNumber="165">3036</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="A4BB4E844D3BF87DFF2C5D0DCE955873" pageId="14" pageNumber="165" type="reference_group">
<paragraph id="EC1E1D0F4D3BF87DFF2C5D0DC8A7582C" blockId="14.[151,1158,259,322]" box="[151,692,259,285]" pageId="14" pageNumber="165">
<treatmentCitationGroup id="CCB13A214D3BF87DFF2C5D0DC8A7582C" box="[151,692,259,285]" pageId="14" pageNumber="165">
<treatmentCitation id="6D003B1E4D3BF87DFF2C5D0DC8A3582C" author="Bernhauer, M." box="[151,688,259,285]" page="188" pageId="14" pageNumber="165" year="1916">
<taxonomicName id="2BA1668C4D3BF87DFF2C5D0DC8A3582C" ID-CoL="3S53W" authority="Bernhauer, 1916: 188" authorityName="Bernhauer" authorityPageNumber="188" authorityYear="1916" box="[151,688,259,285]" class="Insecta" family="Staphylinidae" genus="Lampropygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="peruvianus">
<emphasis id="DED5C11D4D3BF87DFF2C5D0DCBA0582C" box="[151,435,260,285]" italics="true" pageId="14" pageNumber="165">Lampropygus peruvianus</emphasis>
<bibRefCitation id="883060FE4D3BF87DFE005D0AC8A3582C" author="Bernhauer, M." box="[443,688,259,285]" pageId="14" pageNumber="165" pagination="173 - 188" refId="ref19395" refString="Bernhauer, M. (1916) Neue Staphyliniden aus Sudamerika. Wiener Entomologische Zeitung, 35, 173 - 188. https: // doi. org / 10.5962 / bhl. part. 9993" type="journal article" year="1916">Bernhauer, 1916: 188</bibRefCitation>
</taxonomicName>
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="EC1E1D0F4D3BF87DFF2C5D2ECE955873" blockId="14.[151,1158,259,322]" box="[151,1158,295,322]" pageId="14" pageNumber="165">
<treatmentCitationGroup id="CCB13A214D3BF87DFF2C5D2ECE955873" box="[151,1158,295,322]" pageId="14" pageNumber="165">
<treatmentCitation id="6D003B1E4D3BF87DFF2C5D2EC8625870" author="Blackwelder, R. E." box="[151,625,295,321]" page="142" pageId="14" pageNumber="165" year="1944">
<taxonomicName id="2BA1668C4D3BF87DFF2C5D2EC8625870" ID-CoL="5C7TD" authority="Blackwelder, 1944: 142" authorityName="Blackwelder" authorityPageNumber="142" authorityYear="1944" box="[151,625,295,321]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3BF87DFF2C5D2ECB4C5870" box="[151,351,295,321]" italics="true" pageId="14" pageNumber="165">Xanthopygus max</emphasis>
<bibRefCitation id="883060FE4D3BF87DFEDD5D2EC8625870" author="Blackwelder, R. E." box="[358,625,295,321]" pageId="14" pageNumber="165" pagination="1 - 188" refId="ref19512" refString="Blackwelder, R. E. (1944) Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part 1. United States National Museum Bulletin, 185, 1 - 188. https: // doi. org / 10.5479 / si. 03629236.185. i" type="journal article" year="1944">Blackwelder, 1944: 142</bibRefCitation>
</taxonomicName>
</treatmentCitation>
(replacement name for
<taxonomicName id="2BA1668C4D3BF87DFCC65D21CE695873" ID-CoL="3S53W" authority="Bernhauer" authorityName="Bernhauer" authorityYear="1916" box="[893,1146,295,322]" class="Insecta" family="Staphylinidae" genus="Lampropygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="peruvianus">
<emphasis id="DED5C11D4D3BF87DFCC65D21C9EA5870" box="[893,1017,296,321]" italics="true" pageId="14" pageNumber="165">peruvianus</emphasis>
Bernhauer
</taxonomicName>
).
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="A4BB4E844D3BF87DFF2C5D66C9A158C4" pageId="14" pageNumber="165" type="materials_examined">
<paragraph id="EC1E1D0F4D3BF87DFF2C5D66C9A158C4" blockId="14.[151,1437,366,502]" pageId="14" pageNumber="165">
<emphasis id="DED5C11D4D3BF87DFF2C5D66CB5558B8" bold="true" box="[151,326,367,393]" pageId="14" pageNumber="165">Type material.</emphasis>
<materialsCitation id="5CC917524D3BF87DFEF55D66C9A158C4" ID-GBIF-Occurrence="3465757317" collectorName="Al. Heyne &amp; M. Bernhauer Collection" country="Peru" elevation="1500" location="Chanchamayo" pageId="14" pageNumber="165" specimenCount="2" specimenCount-male="1" typeStatus="holotype">
<emphasis id="DED5C11D4D3BF87DFEF55D66CBA858B8" bold="true" box="[334,443,367,393]" pageId="14" pageNumber="165">
<typeStatus id="331AA3AD4D3BF87DFEF55D66CBA858B8" box="[334,443,367,393]" pageId="14" pageNumber="165" type="holotype">Holotype</typeStatus>
</emphasis>
, male, with labels: “
<specimenCount id="FAA7D6864D3BF87DFD1C5D66C8AD58B8" box="[679,702,367,393]" pageId="14" pageNumber="165" type="male"></specimenCount>
” / “
<collectingCountry id="94B65D9F4D3BF87DFD505D66C93758B8" box="[747,804,367,393]" name="Peru" pageId="14" pageNumber="165">Peru</collectingCountry>
,
<location id="E97E4BD44D3BF87DFC8B5D66C9C358B8" LSID="urn:lsid:plazi:treatment:6408AC194D3BF87CFF2C5C9ECBB45F0B:E97E4BD44D3BF87DFC8B5D66C9C358B8" box="[816,976,367,393]" country="Peru" name="Chanchamayo" pageId="14" pageNumber="165">Chanchamayo</location>
[-11.05°, -75.03°],
<quantity id="2B59B0EA4D3BF87DFB0B5D66CF1358BB" box="[1200,1280,367,394]" metricMagnitude="3" metricUnit="m" metricValue="1.5" pageId="14" pageNumber="165" unit="m" value="1500.0">
<elevation id="678CFA3C4D3BF87DFB0B5D66CF1358BB" box="[1200,1280,367,394]" metricMagnitude="3" metricUnit="m" metricValue="1.5" pageId="14" pageNumber="165" unit="m" value="1500.0">1500m</elevation>
</quantity>
,
<collectorName id="415478D94D3BF87DFAB05D66CF9058B8" box="[1291,1411,367,393]" pageId="14" pageNumber="165">Al. Heyne</collectorName>
” / “
<taxonomicName id="2BA1668C4D3BF87DFF1F5D9DCB66589C" authority="Bernh." authorityName="Bernhauer" authorityYear="1916" box="[164,373,403,429]" class="Insecta" family="Staphylinidae" genus="Lampropygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="peruvianus">
<emphasis id="DED5C11D4D3BF87DFF1F5D9DCB33589C" box="[164,288,404,429]" italics="true" pageId="14" pageNumber="165">peruvianus</emphasis>
Bernh.
</taxonomicName>
Typus unic” / “Chicago NHMus
<collectorName id="415478D94D3BF87DFD4F5D9DCE01589C" box="[756,1042,403,430]" pageId="14" pageNumber="165">M. Bernhauer Collection</collectorName>
” / “FMNHINS3975386 Field Museum Pinned” / “
<taxonomicName id="2BA1668C4D3BF87DFEE95DBECBF758E0" authorityName="Kraatz" authorityYear="1857" box="[338,484,439,465]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="genus">
<emphasis id="DED5C11D4D3BF87DFEE95DBECBF758E0" box="[338,484,439,465]" italics="true" pageId="14" pageNumber="165">Xanthopygus</emphasis>
</taxonomicName>
phylogeny voucher SC-008”. In the collection of FMNH.
<bibRefCitation id="883060FE4D3BF87DFBD15DBECF2358E3" author="Bernhauer, M." box="[1130,1328,439,466]" pageId="14" pageNumber="165" pagination="173 - 188" refId="ref19395" refString="Bernhauer, M. (1916) Neue Staphyliniden aus Sudamerika. Wiener Entomologische Zeitung, 35, 173 - 188. https: // doi. org / 10.5962 / bhl. part. 9993" type="journal article" year="1916">Bernhauer (1916)</bibRefCitation>
indicated that he had only
<specimenCount id="FAA7D6864D3BF87DFEE95DD5CBFD58C4" box="[338,494,475,502]" pageId="14" pageNumber="165" type="generic">one specimen</specimenCount>
, therefore this specimen is the
<typeStatus id="331AA3AD4D3BF87DFCF35DD2C9BD58C4" box="[840,942,475,501]" pageId="14" pageNumber="165" type="holotype">holotype</typeStatus>
.
</materialsCitation>
</paragraph>
</subSubSection>
<caption id="B8DE4D874D3BF87DFF2C5AF0CAF85E04" ID-DOI="http://doi.org/10.5281/zenodo.6048505" ID-Zenodo-Dep="6048505" httpUri="https://zenodo.org/record/6048505/files/figure.png" pageId="14" pageNumber="165" startId="14.[151,264,1785,1809]" targetBox="[153,1419,525,1762]" targetPageId="14">
<paragraph id="EC1E1D0F4D3BF87DFF2C5AF0CAF85E04" blockId="14.[151,1436,1785,1845]" pageId="14" pageNumber="165">
<emphasis id="DED5C11D4D3BF87DFF2C5AF0CB465E20" bold="true" box="[151,341,1785,1809]" pageId="14" pageNumber="165">FIGURES 3033.</emphasis>
<taxonomicName id="2BA1668C4D3BF87DFEE05AF0C88E5E20" authority="Blackwelder." authorityName="Blackwelder." box="[347,669,1785,1809]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3BF87DFEE05AF0C8035E20" box="[347,528,1785,1809]" italics="true" pageId="14" pageNumber="165">Xanthopygus max</emphasis>
Blackwelder.
</taxonomicName>
30. Habitus photograph. 31. Pronotum. 32. Sternites 68. 33. Antenna. Not to scale.
</paragraph>
</caption>
<subSubSection id="A4BB4E844D3BF87CFF7C5B6ACB495854" lastPageId="15" lastPageNumber="166" pageId="14" pageNumber="165" type="diagnosis">
<paragraph id="EC1E1D0F4D3BF87CFF7C5B6ACB495854" blockId="14.[151,1437,1891,2026]" lastBlockId="15.[151,1437,151,789]" lastPageId="15" lastPageNumber="166" pageId="14" pageNumber="165">
<emphasis id="DED5C11D4D3BF87DFF7C5B6ACB515E4C" bold="true" box="[199,322,1891,1917]" pageId="14" pageNumber="165">Diagnosis.</emphasis>
<taxonomicName id="2BA1668C4D3BF87DFEF25B6DC8015E4C" box="[329,530,1892,1918]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3BF87DFEF25B6DC8015E4C" box="[329,530,1892,1918]" italics="true" pageId="14" pageNumber="165">Xanthopygus max</emphasis>
</taxonomicName>
looks rather similar to
<taxonomicName id="2BA1668C4D3BF87DFCA25B6DC96F5E4C" baseAuthorityName="Bernhauer" baseAuthorityYear="1917" box="[793,892,1892,1917]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="major">
<emphasis id="DED5C11D4D3BF87DFCA25B6DC96F5E4C" box="[793,892,1892,1917]" italics="true" pageId="14" pageNumber="165">X. major</emphasis>
</taxonomicName>
and
<taxonomicName id="2BA1668C4D3BF87DFC0F5B6DCE075E4C" box="[948,1044,1892,1917]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3BF87DFC0F5B6DCE075E4C" box="[948,1044,1892,1917]" italics="true" pageId="14" pageNumber="165">X. pexus</emphasis>
</taxonomicName>
and it could be hard to distinguish these three species. In all of these species, abdominal segment 7 is black with posterior 1/2 or posterior 1/3 orange; in
<taxonomicName id="2BA1668C4D3BF87DFF0E5BA5CB065EF4" box="[181,277,1964,1989]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3BF87DFF0E5BA5CB065EF4" box="[181,277,1964,1989]" italics="true" pageId="14" pageNumber="165">X. pexus</emphasis>
</taxonomicName>
it is typically 1/2 orange but the degree of coloration can vary.
<taxonomicName id="2BA1668C4D3BF87DFC5C5BA5CED75EF4" baseAuthorityName="Bernhauer" baseAuthorityYear="1917" box="[999,1220,1964,1990]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="major">
<emphasis id="DED5C11D4D3BF87DFC5C5BA5CED75EF4" box="[999,1220,1964,1990]" italics="true" pageId="14" pageNumber="165">Xanthopygus major</emphasis>
</taxonomicName>
and
<taxonomicName id="2BA1668C4D3BF87DFB475BA5CF585EF4" box="[1276,1355,1964,1989]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3BF87DFB475BA5CF585EF4" box="[1276,1355,1964,1989]" italics="true" pageId="14" pageNumber="165">X. max</emphasis>
</taxonomicName>
can be distinguished from
<taxonomicName id="2BA1668C4D3BF87DFEC95BD9CBC15ED8" box="[370,466,2000,2025]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="14" pageNumber="165" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3BF87DFEC95BD9CBC15ED8" box="[370,466,2000,2025]" italics="true" pageId="14" pageNumber="165">X. pexus</emphasis>
</taxonomicName>
based on the following characteristics in combination: head and pronotum with small to medium size (see
<figureCitation id="749A018A4D3AF87CFEC15C9EC8135980" box="[378,512,151,177]" captionStart="FIGURES 3033" captionStartId="14.[151,264,1785,1809]" captionTargetBox="[153,1419,525,1762]" captionTargetId="figure-106@14.[153,1433,525,1762]" captionTargetPageId="14" captionText="FIGURES 3033. Xanthopygus max Blackwelder. 30. Habitus photograph. 31. Pronotum. 32. Sternites 68. 33. Antenna. Not to scale." figureDoi="http://doi.org/10.5281/zenodo.6048505" httpUri="https://zenodo.org/record/6048505/files/figure.png" pageId="15" pageNumber="166">Figs. 3031</figureCitation>
) punctures (medium to large size punctures in
<taxonomicName id="2BA1668C4D3AF87CFBBC5C9ECE765981" box="[1031,1125,151,176]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3AF87CFBBC5C9ECE765981" box="[1031,1125,151,176]" italics="true" pageId="15" pageNumber="166">X. pexus</emphasis>
</taxonomicName>
); pronotum with one sparse row of punctures on each half beside median line (pronotum with 12 dense rows of punctures on each half beside median line in
<taxonomicName id="2BA1668C4D3AF87CFE845CD6CB8C59C9" box="[319,415,223,248]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3AF87CFE845CD6CB8C59C9" box="[319,415,223,248]" italics="true" pageId="15" pageNumber="166">X. pexus</emphasis>
</taxonomicName>
); abdominal segments 46 not iridescent under strong light (abdominal segments 46 with iridescent overtones under strong light in
<taxonomicName id="2BA1668C4D3AF87CFDC25D0AC8C9582D" box="[633,730,259,284]" class="Insecta" family="Staphylinidae" genus="Belonuchus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="pexus">
<emphasis id="DED5C11D4D3AF87CFDC25D0AC8C9582D" box="[633,730,259,284]" italics="true" pageId="15" pageNumber="166">X. pexus</emphasis>
</taxonomicName>
).
<taxonomicName id="2BA1668C4D3AF87CFD4F5D0AC9AC582D" box="[756,959,259,285]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3AF87CFD4F5D0AC9AC582D" box="[756,959,259,285]" italics="true" pageId="15" pageNumber="166">Xanthopygus max</emphasis>
</taxonomicName>
can be confidently distinguished from
<taxonomicName id="2BA1668C4D3AF87CFA3F5D0ACAC95871" baseAuthorityName="Bernhauer" baseAuthorityYear="1917" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="major">
<emphasis id="DED5C11D4D3AF87CFA3F5D0ACAC95871" italics="true" pageId="15" pageNumber="166">X. major</emphasis>
</taxonomicName>
only by examining the paramere; in
<taxonomicName id="2BA1668C4D3AF87CFD3F5D2EC8C75871" box="[644,724,295,320]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3AF87CFD3F5D2EC8C75871" box="[644,724,295,320]" italics="true" pageId="15" pageNumber="166">X. max</emphasis>
</taxonomicName>
the paramere is apically emarginate, whereas in
<taxonomicName id="2BA1668C4D3AF87CFABF5D2ECF7B5871" baseAuthorityName="Bernhauer" baseAuthorityYear="1917" box="[1284,1384,295,321]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="major">
<emphasis id="DED5C11D4D3AF87CFABF5D2ECF065871" box="[1284,1301,295,320]" italics="true" pageId="15" pageNumber="166">X</emphasis>
.
<emphasis id="DED5C11D4D3AF87CFA9E5D2ECF7B5871" box="[1317,1384,295,320]" italics="true" pageId="15" pageNumber="166">major</emphasis>
</taxonomicName>
it is apically rounded.
</paragraph>
</subSubSection>
<subSubSection id="A4BB4E844D3AF87CFF7C5D67CF5E5A24" pageId="15" pageNumber="166" type="description">
<paragraph id="EC1E1D0F4D3AF87CFF7C5D67CF5E5A24" blockId="15.[151,1437,151,789]" pageId="15" pageNumber="166">
<emphasis id="DED5C11D4D3AF87CFF7C5D67CB4A58B9" bold="true" box="[199,345,366,392]" pageId="15" pageNumber="166">Description.</emphasis>
Forebody length
<quantity id="2B59B0EA4D3AF87CFD9A5D66C89358B8" box="[545,640,367,393]" metricMagnitude="-2" metricUnit="m" metricValue="1.16" pageId="15" pageNumber="166" unit="mm" value="11.6">11.6mm</quantity>
; HW/HL ratio = 1.23. Antennomere 3 longer to 2; antennomere 4 subquadrate, with tomentose pubescence; antennomere 6 transverse. Mandibles curved from apical half. Eyes as long as 1/3 length of head; head appearing convex. Head and pronotum with small to medium size punctures (see
<figureCitation id="749A018A4D3AF87CFADE5DBECAF158C4" captionStart="FIGURES 3033" captionStartId="14.[151,264,1785,1809]" captionTargetBox="[153,1419,525,1762]" captionTargetId="figure-106@14.[153,1433,525,1762]" captionTargetPageId="14" captionText="FIGURES 3033. Xanthopygus max Blackwelder. 30. Habitus photograph. 31. Pronotum. 32. Sternites 68. 33. Antenna. Not to scale." figureDoi="http://doi.org/10.5281/zenodo.6048505" httpUri="https://zenodo.org/record/6048505/files/figure.png" pageId="15" pageNumber="166">Figs. 3031</figureCitation>
); pronotum with one sparse row of punctures on each half beside median line; pronotum microsculpture with transverse lines. PW/PL ratio = 1.09. Mesoventrite with intercoxal process broad and pointed. Metacoxae with more than four spines (five or six) on posterior surface. EL/PL ratio = 1.53. Abdominal segments 46 without iridescent overtones; segment 6 without distinct bright band of orange coloration posteriorly; tergite 6 densely punctate; sternite 6 with single anterior transverse line; segment 7 black with posterior 1/4 orange. In males, sternite 7 without porose structure; sternite 8 with shallow U-shaped emargination posteriorly. Aedeagus as in
<figureCitation id="749A018A4D3AF87CFB1D5E86CF3C5B98" box="[1190,1327,655,681]" captionStart="FIGURES 3436" captionStartId="15.[151,264,1426,1450]" captionTargetBox="[151,1422,813,1396]" captionTargetId="figure-319@15.[151,1436,813,1403]" captionTargetPageId="15" captionText="FIGURES 3436. Aedeagus of X. max Blackwelder. 34. Dorsal view. 35. Lateral view. 36. Detail of paramere, ventral view." figureDoi="http://doi.org/10.5281/zenodo.6048507" httpUri="https://zenodo.org/record/6048507/files/figure.png" pageId="15" pageNumber="166">Figs. 3436</figureCitation>
; in dorsal view paramere converging to emarginate apex; paramere shorter and narrower than median lobe; in lateral view paramere almost straight; paramere with peg setae as in
<figureCitation id="749A018A4D3AF87CFCBD5EDEC9445BC0" box="[774,855,727,753]" captionStart="FIGURES 3436" captionStartId="15.[151,264,1426,1450]" captionTargetBox="[151,1422,813,1396]" captionTargetId="figure-319@15.[151,1436,813,1403]" captionTargetPageId="15" captionText="FIGURES 3436. Aedeagus of X. max Blackwelder. 34. Dorsal view. 35. Lateral view. 36. Detail of paramere, ventral view." figureDoi="http://doi.org/10.5281/zenodo.6048507" httpUri="https://zenodo.org/record/6048507/files/figure.png" pageId="15" pageNumber="166">Fig. 36</figureCitation>
. Median lobe in dorsal view converging to narrowly rounded apex; median lobe with subapical tooth; in lateral view median lobe becoming narrower near apex.
</paragraph>
</subSubSection>
<caption id="B8DE4D874D3AF87CFF2C599BCF945C9B" ID-DOI="http://doi.org/10.5281/zenodo.6048507" ID-Zenodo-Dep="6048507" box="[151,1415,1426,1450]" httpUri="https://zenodo.org/record/6048507/files/figure.png" pageId="15" pageNumber="166" startId="15.[151,264,1426,1450]" targetBox="[151,1422,813,1396]" targetPageId="15">
<paragraph id="EC1E1D0F4D3AF87CFF2C599BCF945C9B" blockId="15.[151,1415,1426,1450]" box="[151,1415,1426,1450]" pageId="15" pageNumber="166">
<emphasis id="DED5C11D4D3AF87CFF2C599BCB475C9B" bold="true" box="[151,340,1426,1450]" pageId="15" pageNumber="166">FIGURES 3436.</emphasis>
Aedeagus of
<taxonomicName id="2BA1668C4D3AF87CFE65599AC8A25C9B" authority="Blackwelder." authorityName="Blackwelder." box="[478,689,1426,1450]" class="Insecta" family="Staphylinidae" genus="Xanthopygus" kingdom="Animalia" order="Coleoptera" pageId="15" pageNumber="166" phylum="Arthropoda" rank="species" species="max">
<emphasis id="DED5C11D4D3AF87CFE65599AC8365C9B" box="[478,549,1427,1450]" italics="true" pageId="15" pageNumber="166">X. max</emphasis>
Blackwelder.
</taxonomicName>
34. Dorsal view. 35. Lateral view. 36. Detail of paramere, ventral view.
</paragraph>
</caption>
<subSubSection id="A4BB4E844D3AF87CFF7C59D1CBB45F0B" pageId="15" pageNumber="166" type="distribution">
<paragraph id="EC1E1D0F4D3AF87CFF7C59D1C93A5F27" blockId="15.[151,1437,1496,1594]" pageId="15" pageNumber="166">
<emphasis id="DED5C11D4D3AF87CFF7C59D1CB725CC3" bold="true" box="[199,353,1496,1522]" pageId="15" pageNumber="166">Distribution.</emphasis>
Known only from the
<typeStatus id="331AA3AD4D3AF87CFDDA59D0C8825CC2" box="[609,657,1497,1523]" pageId="15" pageNumber="166">type</typeStatus>
locality in the department of
<collectingRegion id="2E65D3ED4D3AF87CFC6659D1CE095CC3" box="[989,1050,1496,1522]" country="Peru" name="Junin" pageId="15" pageNumber="166">Junín</collectingRegion>
in
<collectingCountry id="94B65D9F4D3AF87CFB8559D0CE665CC2" box="[1086,1141,1497,1523]" name="Peru" pageId="15" pageNumber="166">Peru</collectingCountry>
. The map is shown in
<figureCitation id="749A018A4D3AF87CFACB59D1CAA05F27" captionStart="FIGURE 22" captionStartId="11.[151,250,1962,1986]" captionTargetBox="[195,1392,866,1938]" captionTargetId="figure-41@11.[195,1392,866,1938]" captionTargetPageId="11" captionText="FIGURE 22. Distribution map of X. luctuosus (Blanchard) (white squares), X. major (Bernhauer) (star), X. max Blackwelder (black squares) and X. oliveirae Lynch (circle)." figureDoi="http://doi.org/10.5281/zenodo.6048497" httpUri="https://zenodo.org/record/6048497/files/figure.png" pageId="15" pageNumber="166">Fig. 22</figureCitation>
and online at https://www.simplemappr.net/map/16397.
</paragraph>
<paragraph id="EC1E1D0F4D3AF87CFF7C5A29CBB45F0B" blockId="15.[151,1437,1496,1594]" box="[199,423,1568,1594]" pageId="15" pageNumber="166">
<emphasis id="DED5C11D4D3AF87CFF7C5A29CB395F0B" bold="true" box="[199,298,1568,1594]" pageId="15" pageNumber="166">Habitat.</emphasis>
Unknown.
</paragraph>
</subSubSection>
</treatment>
</document>