treatments-xml/data/10/E1/0C/10E10C3863305894B68CAFEFF132E206.xml

<document id="110749495A4D5EC3A401794A55CF509C" ID-CLB-Dataset="305515" ID-DOI="10.3897/zookeys.1219.125754" ID-GBIF-Dataset="791c9836-16f6-4fe4-9a1e-5443b3c6bbfd" ID-ZooBank="4281D66E-AE5B-4F65-B5C1-92D02B3BFBF6" ID-publisher-id="125754" URI-arpha="E9C71FDE-4938-59E2-AB8A-FBD37F4AB35D" URI-zoobank="http://zoobank.org/4281D66E-AE5B-4F65-B5C1-92D02B3BFBF6" XM.bibliography_approvedBy="admin" XM.materialsCitations_approvedBy="admin" XM.treatmentCitations_approvedBy="admin" article-type="research-article" checkinTime="1732719999428" checkinUser="pensoft" docAuthor="Jiang, Ri-Xin, Wu, Ping-Lan &amp; Chen, Xiang-Sheng" docDate="2024" docId="10E10C3863305894B68CAFEFF132E206" docLanguage="en" docName="ZooKeys 1219: 73-97" docOrigin="ZooKeys 1219" docSource="https://zookeys.pensoft.net/article/125754/download/xml/" docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.generic" docStyleName="PensoftTaxPub.0000.journal_article.generic" docTitle="Grouvellinus buyi Jiang, Wu &amp; Chen, 2024, sp. nov." docType="treatment" docVersion="2" dtd-version="3.0" lastPageNumber="97" masterDocId="E9C71FDE493859E2AB8AFBD37F4AB35D" masterDocTitle="Five new species of the genus Grouvellinus Champion, 1923 from Guizhou Province, China (Coleoptera, Elmidae)" masterLastPageNumber="97" masterPageNumber="73" pageNumber="73" updateTime="1732743644050" updateUser="ExternalLinkService">
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<mods:title id="4121C444F8F553D8827CD9675CDC1365">Five new species of the genus Grouvellinus Champion, 1923 from Guizhou Province, China (Coleoptera, Elmidae)</mods:title>
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<mods:namePart id="FAF6C638DEEA7AE8DF6B7792DF2A1A65">Jiang, Ri-Xin</mods:namePart>
<mods:nameIdentifier id="0C6E25BDDCB209E4895DBE988F1BC798" type="ORCID">0000-0002-5339-853X</mods:nameIdentifier>
<mods:affiliation id="5D596D6253A43B2C79E28340D8A638DD">Institute of Entomology, Guizhou University, Guiyang 550025, Guizhou, China &amp; The Provincial Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, 550025, Guizhou, China</mods:affiliation>
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<mods:namePart id="D6E41AE6C591C013C26BE184FCC91FED">Wu, Ping-Lan</mods:namePart>
<mods:nameIdentifier id="080AD94F0DFE02DF8E7C2AF3816BED0B" type="ORCID">https://orcid.org/0009-0003-7089-7861</mods:nameIdentifier>
<mods:affiliation id="6658AC63C43BA8B162D6A31BF0EFFD20">The Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Guiyang 550025, Guizhou, China</mods:affiliation>
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<mods:namePart id="823DEB5CD3E8343549868136C244E7FE">Chen, Xiang-Sheng</mods:namePart>
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<mods:affiliation id="737E52C2AAAA4320F190D10ADA8AF95D">Institute of Entomology, Guizhou University, Guiyang 550025, Guizhou, China &amp; The Provincial Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, 550025, Guizhou, China</mods:affiliation>
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<treatment id="10E10C3863305894B68CAFEFF132E206" ID-DOI="http://doi.org/10.5281/zenodo.14232175" ID-GBIF-Taxon="247601300" ID-Zenodo-Dep="14232175" ID-arpha="10E10C38-6330-5894-B68C-AFEFF132E206" ID-zoobank="https://zoobank.org/8C824860-8A11-4910-BA45-830E72C9D67A" LSID="urn:lsid:plazi:treatment:10E10C3863305894B68CAFEFF132E206" LSID-ZBK="urn:lsid:zoobank.org:act:8C824860-8A11-4910-BA45-830E72C9D67A" httpUri="http://treatment.plazi.org/id/10E10C3863305894B68CAFEFF132E206" scope_family="Elmidae" scope_order="Coleoptera">
<subSubSection id="914BDE4622DB03E62605CDB691E3386C" type="nomenclature">
<paragraph id="AE2AB20883DE62BCDA8F79219DBB0FAA">
<taxonomicName id="8C314F3299329FDFE456A344A482BA90" authorityName="Jiang &amp; Wu &amp; Chen" authorityYear="2024" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="buyi" status="sp. nov.">
<emphasis id="BA8707AC5B77E91A75952493ADF6E70B" italics="true">Grouvellinus buyi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="4B2807FFA27B0640BDC5268D9C53F2A0" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="4364E02E2101CB9B1358471DA51C52AC" type="description">
<paragraph id="44FBB939EB153CD0A6EA1C39188ABE8D">
<figureCitation id="283B544460456D2E51B74BA3C7FFEB53" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Dorsal habitus of Grouvellinus species, holotypes A G. loong sp. nov. B G. buyi sp. nov. C G. wangmoensis sp. nov. D G. lihaitaoi sp. nov. E G. muyinlini sp. nov. Scale bar: 0.5 mm." figureDoi="10.3897/zookeys.1219.125754.figure1" httpUri="https://binary.pensoft.net/fig/1184213">Figs 1 B</figureCitation>
, 
<figureCitation id="1B38B11340DBFF7FA896AF3BA6E05147" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4</figureCitation>
, 
<figureCitation id="BF89A9A5D61D1682D7ECAD005A1F78AA" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Aedeagus of Grouvellinus buyi sp. nov., paratype A dorsal view B lateral view C ventral view D apex of median lobe and parameres. Scale bars: 0.05 mm (D); 0.1 mm (A – C)." figureDoi="10.3897/zookeys.1219.125754.figure5" httpUri="https://binary.pensoft.net/fig/1184217">5</figureCitation>
, 
<figureCitation id="5A8FC8C9D1E3CDFDD3599CCEF0D7BF79" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Ovipositor of Grouvellinus species A, F G. loong sp. nov., paratype B, G G. buyi sp. nov., paratype C, H G. wangmoensis sp. nov., paratype D, I G. lihaitaoi sp. nov., paratype E, J G. muyinlini sp. nov., paratype. Scale bars: 0.1 mm." figureDoi="10.3897/zookeys.1219.125754.figure12" httpUri="https://binary.pensoft.net/fig/1184224">12 B, G</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="SECID0E2LAE" type="material">
<paragraph id="BCA0BF9DA0506461E48E37CD4E4A3A37">
<heading id="75CC45A804FB1DBB0596818DB63E608A" reason="title">Material examined.</heading>
</paragraph>
<paragraph id="B6A70EB0BED960C40AA59D0426B2D232">
(11 exs: 
<specimenCount id="47043108401DA281E5E34BA8810080E9" count="5" type="male">5 ♂♂</specimenCount>
, 
<specimenCount id="DB192D5105423011A6AFE7D5190A52D9" count="6" type="female">6 ♀♀</specimenCount>
): 
<materialsCitation id="E90F3A912487CB54DF6198B77EBCC60E" ID-GBIF-Occurrence="4985326306" collectingDate="2022-11-06" collectionCode="GUGC" collectorName="Jiang Ri-Xin" country="China" county="Wudang District" elevation="1187" latitude="26.783888" location="Xiangzhigou Scenic Area" longLatPrecision="20" longitude="106.93584" municipality="Guiyang City" specimenCount="1" specimenCount-male="1" stateProvince="Guizhou" typeStatus="holotype">
<emphasis id="12AED979C5F42190777F58436A5523C1" bold="true">
<emphasis id="013A6C594429C667EF740A447A3EBD16" bold="true" italics="true">
<typeStatus id="B2F348BCCEFEB146DC5FA76334C52C6F" type="holotype">Holotype</typeStatus>
</emphasis>
: 
<collectingCountry id="705F12A66E7AA833DD420AD8783D0904" name="China">China</collectingCountry>
</emphasis>
• 
<specimenCount id="819CAB4FE38CD660FDDF903820E0CEC0" count="1" type="male">♂</specimenCount>
, labeled ‘ China: 
<collectingRegion id="04D501EDFF8C8FF20D142F2A4D8C3F9F" country="China" name="Guizhou">Guizhou</collectingRegion>
, 
<collectingMunicipality id="4B2CC00FE905CF8928CE287C37206DC4">Guiyang City</collectingMunicipality>
(贵阳市), 
<collectingCounty id="5ACC3E59C692EE63037CD941FCF572FE">Wudang District</collectingCounty>
(乌当区), 
<collectingMunicipality id="0A3A3FC6EB34333A9F32DBBB101F5883">Xinbaobuyi Township</collectingMunicipality>
(新堡布依族乡), 
<location id="D95C2C7AA88CC89876AD19C32F894527" LSID="urn:lsid:plazi:treatment:10E10C3863305894B68CAFEFF132E206:D95C2C7AA88CC89876AD19C32F894527" country="China" county="Wudang District" latitude="26.783888" longLatPrecision="20" longitude="106.93584" municipality="Guiyang City" name="Xiangzhigou Scenic Area" stateProvince="Guizhou">Xiangzhigou Scenic Area</location>
(香纸沟景区), 
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EIMAE" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[106.935833,26.783889]}">
<geoCoordinate id="B8AF7DDD92175FD296495CC57AB356F9" degrees="26" direction="north" minutes="47" orientation="latitude" precision="15" seconds="02" value="26.783888">26°47'02&quot;N</geoCoordinate>
, 
<geoCoordinate id="A0C9A7CE049675BA77FF7E98E4B2A6E4" degrees="106" direction="east" minutes="56" orientation="longitude" precision="15" seconds="09" value="106.93584">106°56'09&quot;E</geoCoordinate>
</named-content>
, H: 
<quantity id="1F55B4DECCB79BF80ABC9AFFF3BB0B63" metricMagnitude="3" metricUnit="m" metricValue="1.187" unit="m" value="1187.0">
<elevation id="4D61B8766552C06DBE612990C1D97EB2" metricMagnitude="3" metricUnit="m" metricValue="1.187" unit="m" value="1187.0">1187 m</elevation>
</quantity>
, 
<date id="BE99BE21F8D865BBFE66A0C54CC30876" value="2022-11-06">
<collectingDate id="22447389D3D116A7D0122D37AD83903B" value="2022-11-06">06. XI. 2022</collectingDate>
</date>
, 
<collectorName id="6CA64710EF6962BCC2A85B625F320355">Jiang Ri-Xin</collectorName>
leg. ’ (
<abbrev id="ABBRID0ENMAE" xlink_title="Institute of Entomology, Guizhou University">
<collectionCode id="267F169877579221FDEEB312614144F4">GUGC</collectionCode>
</abbrev>
)
</materialsCitation>
. 
<materialsCitation id="938848306C70C4E6219E15BBC18F8E79" ID-GBIF-Occurrence="4985326307" collectingDate="2022-11-06" collectionCode="GUGC" collectorName="Jiang Ri-Xin" country="China" county="Wudang District" elevation="1187" latitude="26.783888" location="China" longLatPrecision="20" longitude="106.93584" municipality="Guiyang City" specimenCount="10" specimenCount-female="6" specimenCount-male="4" stateProvince="Guizhou" typeStatus="paratype">
<emphasis id="4D3A34F0C310F3134E25C67F3D246D34" bold="true">
<emphasis id="49818D8B1EA40421935D2D1701339472" bold="true" italics="true">
<typeStatus id="920104E8CD6AD6B50530AB59E5408127" type="paratype">Paratypes</typeStatus>
</emphasis>
: 
<collectingCountry id="5B83EC9E35FBB4D9DFD223C7DA57F304" name="China">China</collectingCountry>
</emphasis>
• 
<specimenCount id="488E362BB626EBB39199F59017459B2D" count="4" type="male">4 ♂♂</specimenCount>
, 
<specimenCount id="AA4BB464339F27A0DB33A5C9493AD939" count="6" type="female">6 ♀♀</specimenCount>
, with same label data as the holotype (
<abbrev id="ABBRID0EVMAE" xlink_title="Institute of Entomology, Guizhou University">
<collectionCode id="267A8AC8C2FF81D8F60C1A60C7FFAEB4">GUGC</collectionCode>
</abbrev>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EZMAE" type="diagnosis">
<paragraph id="0D826169F62922AAA4DD2C308F56C2CB">
<heading id="069BFCB046983EB29355FF41685FFAE0" reason="title">Diagnosis.</heading>
</paragraph>
<paragraph id="AE8CFFCF04025F9927C02FB89AAE36EC">Body, long-oval, dark brown, surface shiny with cupreous metallic luster. Pronotum widest at basal 2 / 5, finely covered with small punctures, anterior and posterior angles densely covered with large punctures. Elytral intervals VII and VIII carinated, carinae granulated. Strial punctures of elytra very large in basal 2 / 3 and much smaller in apical 1 / 3. Sides of aedeagus generally subparallel in dorsal and ventral view, with median lobe slightly longer than parameres, distinctly curved in lateral view, apex narrowed and subacute. Parameres with apex rounded, lateral portion with long setae at apical 2 / 5.</paragraph>
</subSubSection>
<subSubSection id="SECID0E5MAE" type="description">
<paragraph id="1BF1BD868DEDFB2BB78C771D3D85750B">
<heading id="1C25414E1359E92E694CF03E38A8AE77" reason="title">Description.</heading>
</paragraph>
<paragraph id="1AF147B2A49366F63432820594589CD2">
<emphasis id="1BBC4D59B244BFFD0B5BF28A4AC27AA7" bold="true">Male.</emphasis>
Body long-oval (Fig. 
<figureCitation id="C3A251773EEACC4FD239D3E3BB405093" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Dorsal habitus of Grouvellinus species, holotypes A G. loong sp. nov. B G. buyi sp. nov. C G. wangmoensis sp. nov. D G. lihaitaoi sp. nov. E G. muyinlini sp. nov. Scale bar: 0.5 mm." figureDoi="10.3897/zookeys.1219.125754.figure1" httpUri="https://binary.pensoft.net/fig/1184213">1 B</figureCitation>
), dark brown with tibiae and antenna pale brown, surface shiny with distinct cupreous metallic luster. Plastron area confined to head except for frons, vertex and clypeus, lateral portions of prosternum, ninth elytral interval and epipleura, lateral portions of mesosternum, metaventrite, abdomen, and femora.
</paragraph>
<paragraph id="CA0E4639354FE3E3AA90FA70B827A365">
Head (Fig. 
<figureCitation id="CA83D63ED9BC5A2B4CF57F1F4A3F00B9" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 A</figureCitation>
) wider than long, dorsal surface shiny, densely with short setae (except discal part) and with sparse large punctures, each bearing a longer seta. Surface of clypeus shiny, with sparse small punctures and long setae. Labrum transverse, narrower than clypeus, surface shiny, with sparse short setae, lateral margins with long bristles, apical margin rounded.
</paragraph>
<caption id="9C7F5144CFD10FF98626E42E6CC05373" ID-DOI="10.3897/zookeys.1219.125754.figure4" ID-arpha="33385516-D496-5F6A-B207-9B319426B9FB" httpUri="https://binary.pensoft.net/fig/1184216" startId="F4">
<paragraph id="1939293098EE227B23837C139FA6D822">
<label id="53A14830FD86C64DEB1B2120D955446B">Figure 4.</label>
</paragraph>
<paragraph id="CFC4F6E5786707F99463B5EA7A15C126">
Diagnostic features of 
<taxonomicName id="16D949904923666923DB3D3BA3AE0FE8" authorityName="Jiang &amp; Wu &amp; Chen" authorityYear="2024" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="buyi" status="sp. nov.">
<emphasis id="6B7F07A95304055BF2BBC49EEB0DE56A" italics="true">Grouvellinus buyi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="D2563426688EC76B4F1DA84BA462E2B3" rank="species">sp. nov.</taxonomicNameLabel>
, paratype 
<emphasis id="7D7DAF1896D47397B6D8CD6B8DB0177F" bold="true">A</emphasis>
head, dorsal view 
<emphasis id="9B9F8CC5420CDC04B0144CA0308F5FE1" bold="true">B</emphasis>
pronotum, dorsal view 
<emphasis id="E1CECD816A273DD4E438A3F2B65D4504" bold="true">C</emphasis>
elytra, dorsal view 
<emphasis id="95441B9304C6DD8A14DFB9A6658D0DFC" bold="true">D</emphasis>
ventral habitus. Scale bars: 0.25 mm (
<emphasis id="CA5D325636EC429814C33EE647488D6F" bold="true">A, B</emphasis>
); 0.5 mm (
<emphasis id="B993588F6E33FAD1377375171A290213" bold="true">C, D</emphasis>
).
</paragraph>
</caption>
<paragraph id="96520C3ED6B5C735403EBD69E6079796">
Pronotum (Fig. 
<figureCitation id="4E7115C42EFC278F751CDCAED3F40DC5" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 B</figureCitation>
), wider than long, widest near middle. Disc finely punctured with sparse small punctures, punctures with longer adpressed setae, intervals glabrous, shiny. Surface of anterior and posterior angles densely with large punctures. Anterior margin arcuate, anterior angles distinctly produced and acutangular, pronotal margins finely curved. Basal margin trisinuate, posterior angles acutangular. Longitudinal impression absent, with several pairs of small granules located in front of angles of scutellum. Sublateral carinae present in basal 1 / 2 of pronotum, trisinuate, each side of sublateral carinae with a shallow and indistinct oblique impression, extending from apical end of carina to near anterior angle. Prosternal process (Fig. 
<figureCitation id="93C52A355BF322954BC7ED5BB3E246B2" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 D</figureCitation>
) with straight apex, surface sparsely with large punctures.
</paragraph>
<paragraph id="1DB5C966CA22D46163419E99179DB9F4">
Scutellum (Fig. 
<figureCitation id="F28BB1154CC39F1680CC5E034EAD0F0B" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 B</figureCitation>
) half fusiform, ~ 1.5 × as long as wide, widest near middle; surface microreticulated, with several small punctures; lateral margins finely curved, apex acutangular.
</paragraph>
<paragraph id="DFA13DE0CAC525D935339CC28F1D2CC5">
Elytra (Fig. 
<figureCitation id="71B3C96A76371E147B14486B1F34E8C4" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 C</figureCitation>
) ~ 1.5 × as long as wide, widest behind basal 1 / 2. Surface shiny, with distinct cupreous metallic luster and rows of sparse long setae. Strial punctures larger in basal 1 / 2, separated by ~ 1.5 × their diameters, much smaller and widely separated in other parts of elytra. Granulated carinae on strial intervals VII and VIII, other intervals flat. Hind wings well developed.
</paragraph>
<paragraph id="1AEA61D997DB104009F7398B134A3463">
Metaventrite (Fig. 
<figureCitation id="610F6B9676FBA02F5219991E44265E4C" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 D</figureCitation>
), surface rough with sparse long setae and large round punctures at disc. Median sulcus distinct, extending from posterior margin to anterior 1 / 2. A pair of small round impression located at basal sides of median sulcus. Lateral sides of disc with series of elliptical shallow impression.
</paragraph>
<paragraph id="0EA03D75100D2C5BC9EA87A78A4C5089">
<emphasis id="7C0B7FCB639009D3D0DE6127F7475EA7" bold="true">
<emphasis id="7F27A0C4E63D7308AB281C998348F737" bold="true" italics="true">Abdomen</emphasis>
.
</emphasis>
Middle regions of ventrites I – IV and anterior part of ventrite V punctured (Fig. 
<figureCitation id="CFB301337E5FC1B759F968DF3F206AB5" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 D</figureCitation>
), covered with sparse small punctures, each puncture bearing a long seta. Other parts of abdomen (Fig. 
<figureCitation id="70F88A4A08883FF7D0030424F156B2FE" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Diagnostic features of Grouvellinus buyi sp. nov., paratype A head, dorsal view B pronotum, dorsal view C elytra, dorsal view D ventral habitus. Scale bars: 0.25 mm (A, B); 0.5 mm (C, D)." figureDoi="10.3897/zookeys.1219.125754.figure4" httpUri="https://binary.pensoft.net/fig/1184216">4 D</figureCitation>
) covered with plastron and mixed with sparse long setae. Apex of ventrite V weakly concaved. Ventrite I with well-developed pair of admedian carinae, straight, extending from base to apex.
</paragraph>
<paragraph id="9C08ABEF4AB00048381D30E288551A13">Legs simple, surface granulated; femora widened, surface with plastron; inner side of tibiae with cleaning fringes; tarsi slightly shorter tibiae; tarsal claws simple.</paragraph>
<paragraph id="CFEF3DBFA941A2CA4CF9AFE7A8151FE0">
<emphasis id="40AB34A6B04B055FE9D6E20F2AC075E4" bold="true">
<emphasis id="69AB5DAE67551624E07749D2A0CCDF8D" bold="true" italics="true">Genitalia</emphasis>
.
</emphasis>
Aedeagus (Fig. 
<figureCitation id="38B59F0AD0C5E5527DE1FAB30175F0E3" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Aedeagus of Grouvellinus buyi sp. nov., paratype A dorsal view B lateral view C ventral view D apex of median lobe and parameres. Scale bars: 0.05 mm (D); 0.1 mm (A – C)." figureDoi="10.3897/zookeys.1219.125754.figure5" httpUri="https://binary.pensoft.net/fig/1184217">5 A – D</figureCitation>
), long and slender, symmetrical; median lobe slightly longer than parameres, finely get narrowed in basal 3 / 4, distal 1 / 4 distinctly sharpened. Parameres (Fig. 
<figureCitation id="F8940890A6E33F3F7960BBF3DD7D00E5" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Aedeagus of Grouvellinus buyi sp. nov., paratype A dorsal view B lateral view C ventral view D apex of median lobe and parameres. Scale bars: 0.05 mm (D); 0.1 mm (A – C)." figureDoi="10.3897/zookeys.1219.125754.figure5" httpUri="https://binary.pensoft.net/fig/1184217">5 D</figureCitation>
) curved at apex, with apex rounded; apical 1 / 2 covered with long setae.
</paragraph>
<caption id="F1C059005377F4D1CC3D1377E57E8981" ID-DOI="10.3897/zookeys.1219.125754.figure5" ID-arpha="CE22353F-6200-5B4F-AF5C-E2BB4A67D80E" httpUri="https://binary.pensoft.net/fig/1184217" startId="F5">
<paragraph id="ECD5C06A7A87964138F6FE53F727AC3A">
<label id="EBE76153833641723E2EF675B7CAF0A5">Figure 5.</label>
</paragraph>
<paragraph id="CBC16C8425769F991996980ECF1C5C55">
Aedeagus of 
<taxonomicName id="7A25D9E6218E71B68C01ABBC1BAF1A05" authorityName="Jiang &amp; Wu &amp; Chen" authorityYear="2024" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="buyi" status="sp. nov.">
<emphasis id="98E771AA36ED55DFFCB14EC45AB5B1B7" italics="true">Grouvellinus buyi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="0181D63B6E1D44C33CE5F13F3D32A8D3" rank="species">sp. nov.</taxonomicNameLabel>
, paratype 
<emphasis id="B64FE14F686D83B9BB38002DEA3D1FC6" bold="true">A</emphasis>
dorsal view 
<emphasis id="8EC3FFF2F7D812BA84131CDD822A0568" bold="true">B</emphasis>
lateral view 
<emphasis id="4813CC30A233EB0E8085A81616C8E03E" bold="true">C</emphasis>
ventral view 
<emphasis id="2426C911B4C1CC527BB06E1B6349F268" bold="true">D</emphasis>
apex of median lobe and parameres. Scale bars: 0.05 mm (
<emphasis id="A802899D242E67F59934C6C7ACC8D59D" bold="true">D</emphasis>
); 0.1 mm (
<emphasis id="C1C15534D49CC6057C44E4AC10EAD44A" bold="true">A – C</emphasis>
).
</paragraph>
</caption>
<paragraph id="F8D0E15A5C008C1568C9F942CDA52B31">
<emphasis id="DACF85B1899BE45D72BD37E398E75EFB" bold="true">Female.</emphasis>
Externally similar to the male, averagely larger. Ovipositor as in Fig. 
<figureCitation id="6FB9E3658C31B7E7F199626F8EC600D3" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Ovipositor of Grouvellinus species A, F G. loong sp. nov., paratype B, G G. buyi sp. nov., paratype C, H G. wangmoensis sp. nov., paratype D, I G. lihaitaoi sp. nov., paratype E, J G. muyinlini sp. nov., paratype. Scale bars: 0.1 mm." figureDoi="10.3897/zookeys.1219.125754.figure12" httpUri="https://binary.pensoft.net/fig/1184224">12 B, G</figureCitation>
. Stylus short and narrow, weakly curved at apex, ~ 1 / 7 as long as distal portion of coxite. Coxite long, apex weakly expanded, roundly broadened at outer margin, with several short and curved sensilla. Distal portion of coxite nearly straight, surface finely with very short and acute setae. Proximal portion of coxite short, longer than 1 / 3 length of distal portion, surface finely covered with sparse, very short and acute setae. Valvifers ~ as long as coxite, longitudinal baculum weakly curved.
</paragraph>
</subSubSection>
<subSubSection id="SECID0E2RAE" type="description">
<paragraph id="1169434EA1B158E1C626308317D754A1">
<heading id="70504260A2DDC318DA3D755D60134F77" reason="title">Measurements.</heading>
</paragraph>
<paragraph id="323E174A0B0DD9A6C93CDB567617C374">
<emphasis id="A70F7DF3F54B382ED84AAD11C3394DD7" bold="true">Male</emphasis>
(
<emphasis id="81552B84832992ACEC6C06FC3FD28DED" italics="true">n</emphasis>
= 5): 
<abbrev id="ABBRID0EFSAE" xlink_title="length of body, as the sum PL + EL">CL</abbrev>
: 
<quantity id="F2F630556D6FDB966A5FEB987DBFE761" metricMagnitude="-3" metricUnit="m" metricValue="2.0" metricValueMax="2.09" metricValueMin="1.91" unit="mm" value="2.0" valueMax="2.09" valueMin="1.91">1.91–2.09 mm</quantity>
(1.96 ± 0.07); 
<abbrev id="ABBRID0EJSAE" xlink_title="length of pronotum along the midline">PL</abbrev>
: 
<quantity id="58B42045D798528FCFC886998FFA20EA" metricMagnitude="-4" metricUnit="m" metricValue="5.85" metricValueMax="5.8999999999999995" metricValueMin="5.8" unit="mm" value="0.585" valueMax="0.59" valueMin="0.58">0.58–0.59 mm</quantity>
(0.58 ± 0.01), 
<abbrev id="ABBRID0ENSAE" xlink_title="maximum width of pronotum">PW</abbrev>
: 
<quantity id="B8203276A097DA36B72764CB2DEA7976" metricMagnitude="-4" metricUnit="m" metricValue="7.25" metricValueMax="7.4" metricValueMin="7.1" unit="mm" value="0.725" valueMax="0.74" valueMin="0.71">0.71–0.74 mm</quantity>
(0.72 ± 0.01); 
<abbrev id="ABBRID0ERSAE" xlink_title="length of elytra along the suture">EL</abbrev>
: 
<quantity id="802A18663E3B22939299A9B2D7F6EA12" metricMagnitude="-3" metricUnit="m" metricValue="1.41" metricValueMax="1.5" metricValueMin="1.32" unit="mm" value="1.41" valueMax="1.5" valueMin="1.32">1.32–1.50 mm</quantity>
(1.38 ± 0.07), 
<abbrev id="ABBRID0EVSAE" xlink_title="maximum width of elytra">EW</abbrev>
: 0.94–1.00 mm (0.97 ± 0.02).
</paragraph>
<paragraph id="68CEE80FC2A3B7BFAB74E4158F153E4E">
<emphasis id="8D981A78B1A9E8644A58416F9144F6A2" bold="true">Female</emphasis>
: 
<abbrev id="ABBRID0E4SAE" xlink_title="length of body, as the sum PL + EL">CL</abbrev>
(
<emphasis id="66D646AFC60579A9AE6854B8319ABAC9" italics="true">n</emphasis>
= 6): 
<quantity id="037A828612C0BCA0ED59D0242FCBC809" metricMagnitude="-3" metricUnit="m" metricValue="2.205" metricValueMax="2.23" metricValueMin="2.18" unit="mm" value="2.205" valueMax="2.23" valueMin="2.18">2.18–2.23 mm</quantity>
(2.21 ± 0.02); 
<abbrev id="ABBRID0EDTAE" xlink_title="length of pronotum along the midline">PL</abbrev>
: 
<quantity id="AEF0A30C5322AD64088991919DF7525E" metricMagnitude="-4" metricUnit="m" metricValue="6.35" metricValueMax="6.5" metricValueMin="6.2" unit="mm" value="0.635" valueMax="0.65" valueMin="0.62">0.62–0.65 mm</quantity>
(0.63 ± 0.01), 
<abbrev id="ABBRID0EHTAE" xlink_title="maximum width of pronotum">PW</abbrev>
: 
<quantity id="16CEA060782151D84BA26ECF4C753FEA" metricMagnitude="-4" metricUnit="m" metricValue="7.749999999999999" metricValueMax="8.299999999999999" metricValueMin="7.199999999999999" unit="mm" value="0.7749999999999999" valueMax="0.83" valueMin="0.72">0.72–0.83 mm</quantity>
(0.77 ± 0.04); 
<abbrev id="ABBRID0ELTAE" xlink_title="length of elytra along the suture">EL</abbrev>
: 
<quantity id="17873F417453BC527100BDDA8F996C75" metricMagnitude="-3" metricUnit="m" metricValue="1.57" metricValueMax="1.58" metricValueMin="1.56" unit="mm" value="1.57" valueMax="1.58" valueMin="1.56">1.56–1.58 mm</quantity>
(1.57 ± 0.01), 
<abbrev id="ABBRID0EPTAE" xlink_title="maximum width of elytra">EW</abbrev>
: 
<quantity id="68BEC4F8D21AB93C2FAF1D39AA193FBE" metricMagnitude="-3" metricUnit="m" metricValue="1.035" metricValueMax="1.1" metricValueMin="0.97" unit="mm" value="1.035" valueMax="1.1" valueMin="0.97">0.97–1.10 mm</quantity>
(1.01 ± 0.05).
</paragraph>
</subSubSection>
<subSubSection id="SECID0ETTAE" type="distribution">
<paragraph id="67C1209FC4BE5D49C66BEA0A93322620">
<heading id="5EB4876FB5B3F0E739E247539B35ED12" reason="title">Distribution.</heading>
</paragraph>
<paragraph id="C1D24697C9694B689F0A91CF97E67D8B">
<collectingCountry id="FFDF131BEB964EEA0C2F8004954AB4CD" name="China">China</collectingCountry>
: 
<collectingRegion id="1BA5EB9A8189E5C2C563F8AA878C9078" country="China" name="Guizhou">Guizhou</collectingRegion>
.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EYTAE" type="biology">
<paragraph id="CA0427582C141189786AB532AE2CF57A">
<heading id="14E90AEC4923AF5C2EB576259AE2F37E" reason="title">Biology.</heading>
</paragraph>
<paragraph id="37DA4F574A41FDF349B149B732798916">
All adults were collected from submerged stone in small ravine stream (Fig. 
<figureCitation id="60B2809006C251ED0A5AFED927F5E7A9" captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Habitats of Grouvellinus species A general environment of the type locality of G. loong sp. nov. B same, microenvironment C living adult of G. loong sp. nov. D general environment of the type locality of G. buyi sp. nov." figureDoi="10.3897/zookeys.1219.125754.figure14" httpUri="https://binary.pensoft.net/fig/1184226">14 D</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="SECID0ECUAE" type="etymology">
<paragraph id="74676E6124BF3805BAE48590A6F312F5">
<heading id="D727508BACD87D7DBDCAFC2E4FF68920" reason="title">Etymology.</heading>
</paragraph>
<paragraph id="0DE6605EF189AF2C4F6E7CE6D2F57A8B">
The specific epithet 
<taxonomicName id="DA4BA5619A5FB5184D56DC5B3171C895" authorityName="Jiang &amp; Wu &amp; Chen" authorityYear="2024" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="buyi">
‘ 
<emphasis id="C00DB52DDE1B4281D40CD0C0DABA12AC" italics="true">buyi</emphasis>
</taxonomicName>
’ is a nation of Chinese, which is the majority nation of the type locality of this new species: Xinbaobuyi Township (Guiyang City, 
<collectingRegion id="77D2E1418551169BD825BAD9C512B75F" country="China" name="Guizhou">Guizhou Province</collectingRegion>
, 
<collectingCountry id="BE3F95F932A3A6DE7C4F44BC8F22F8CF" name="China">China</collectingCountry>
).
</paragraph>
</subSubSection>
<subSubSection id="SECID0ERUAE" type="Comparative diagnosis">
<paragraph id="D018EAA6508DC985476770F3EA346DDE">
<heading id="BFA99040BF7CCBF110A96935302476B2" reason="title">Comparative diagnosis.</heading>
</paragraph>
<paragraph id="FE71C0D1765AAD9C5BC716AA8860052A">
The new species is similar with 
<taxonomicName id="F06FDF9390D4779F7049DA97C1DA7028" authority="Grouvelle, 1906" authorityName="Grouvelle" authorityYear="1906" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="sinensis">
<emphasis id="D7FB7FAA2795D22C9A85E2B0D72845D2" italics="true">Grouvellinus sinensis</emphasis>
Grouvelle, 1906
</taxonomicName>
and 
<taxonomicName id="7D3935B9773D9EE0EEC479B5D94ECE09" authority="Bian &amp; Zhang, 2023" authorityName="Bian &amp; Zhang" authorityYear="2023" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ligulaceus">
<emphasis id="1C6FFA1E9D51AB8ED792ABD9A9E111B5" italics="true">G. ligulaceus</emphasis>
<bibRefCitation id="7E4383A3B357B5F8DA37C69293C57D9F" DOI="10.11646/zootaxa.5254.2.6" author="Bian D-J &amp; Zhang Y" issue="2" journalOrPublisher="Zootaxa" pagination="257-277" refId="B4" refString="Bian D-J, Zhang Y (2023) Descriptions of eight new species of Grouvellinus from China (Coleoptera, Elmidae). Zootaxa 5254 (2): 257 - 277. https: // doi. org / 10.11646 / zootaxa. 5254.2. 6" title="Descriptions of eight new species of Grouvellinus from China (Coleoptera, Elmidae)." volume="5254" year="2023">
Bian &amp; Zhang, 
<quantity id="035118AF838CF06412BDD4151E48BC91" metricMagnitude="1" metricUnit="m" metricValue="5.13842" unit="in" value="2023.0">2023 in</quantity>
</bibRefCitation>
</taxonomicName>
habitus. 
<taxonomicName id="01C597C4C55BA78062B215F7B857BD02" authorityName="Jiang &amp; Wu &amp; Chen" authorityYear="2024" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="buyi" status="sp. nov.">
<emphasis id="217499DF57A9700A1B335C20A2208FC8" italics="true">Grouvellinus buyi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="382275AC76E9D1FA0124F56338489E14" rank="species">sp. nov.</taxonomicNameLabel>
can be easily distinguished from 
<taxonomicName id="4C05D4379C46B22911B866716D867E33" authorityName="Bian &amp; Zhang" authorityYear="2023" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ligulaceus">
<emphasis id="6741E8953324764D81D9C890845D37C3" italics="true">G. ligulaceus</emphasis>
</taxonomicName>
by the following characters: 1) strial punctures of elytra very large in basal 1 / 2 (vs much smaller); 2) prosternal process with straight apex (vs weakly rounded); 3) median lobe of aedeagus slender (vs much broader); 4) parameres of aedeagus distinctly curved at apex (vs not as above).
</paragraph>
<paragraph id="7A554B99F02C0B2021BC846E3D0FFC75">
The new species can be distinguished from 
<taxonomicName id="595BB0BA393C0EE5FBFB3F0A4BB18512" authorityName="Grouvelle" authorityYear="1906" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="sinensis">
<emphasis id="E8B60529142692ADABB0722A7AABBCBF" italics="true">G. sinensis</emphasis>
</taxonomicName>
by having a body with metallic luster and the surface of metaventrite and abdominal ventrites shiny, whereas the body lacks metallic luster and the surface of metaventrite and abdominal ventrites is distinctly rough in 
<taxonomicName id="19D1A1D74DB5667C7377C4B3244A3E90" authorityName="Grouvelle" authorityYear="1906" class="Insecta" family="Elmidae" genus="Grouvellinus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="sinensis">
<emphasis id="061390EC1EEEA39D6569FDCD1A4EF2EA" italics="true">G. sinensis</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>