treatments-xml/data/0F/B2/86/0FB286BF8C12536E80740C3D3C1714DD.xml

287 lines
30 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document id="6CEE6BD01E8F529F646BFBAF75985029" ID-CLB-Dataset="298668" ID-DOI="10.3897/zookeys.1205.123579" ID-GBIF-Dataset="7cc6f525-e465-4ce5-92de-b7b4c7ed5d8e" ID-ZooBank="EB9D907F-1554-484A-9399-79FA6C6A4F7B" ID-publisher-id="123579" URI-arpha="6D6201D6-B5E4-57D5-AA34-8D8971C5AE88" URI-zoobank="http://zoobank.org/EB9D907F-1554-484A-9399-79FA6C6A4F7B" XM.materialsCitations_approvedBy="admin" article-type="research-article" checkinTime="1718814235584" checkinUser="pensoft" docAuthor="Jia, Feng-long &amp; Mai, Zu-qi" docDate="2024" docId="0FB286BF8C12536E80740C3D3C1714DD" docLanguage="en" docName="ZooKeys 1205: 17-38" docOrigin="ZooKeys 1205" docSource="https://zookeys.pensoft.net/article/123579/download/xml/" docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.generic" docStyleName="PensoftTaxPub.0000.journal_article.generic" docTitle="Oocyclus ximaensis Jia &amp; Mai 2024, sp. nov." docType="treatment" docUuid="2A925CD2-EC80-4A22-971E-7C0024471B48" docUuidSource="ZooBank" docVersion="5" dtd-version="3.0" lastPageNumber="38" masterDocId="6D6201D6B5E457D5AA348D8971C5AE88" masterDocTitle="Three new species of Oocyclus Sharp, 1882, with additional records from China (Coleoptera, Hydrophilidae, Laccobiini)" masterLastPageNumber="38" masterPageNumber="17" pageNumber="17" updateTime="1718832639274" updateUser="ExternalLinkService">
<mods:mods id="0302A2BF4AE6C76B614AAA388A253395" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="17EBA89F3D96323F80D468B6F61A6CBF">
<mods:title id="E136225D63323C06E14E54716A06BB36">Three new species of Oocyclus Sharp, 1882, with additional records from China (Coleoptera, Hydrophilidae, Laccobiini)</mods:title>
</mods:titleInfo>
<mods:name id="58C8BFD16E28616F2D9DF5D7DD83E64D" type="personal">
<mods:role id="2420FF4978F2B6CB61FAE732F6E1FF90">
<mods:roleTerm id="A6D3765A12D7C6DDFD4E63B29EB78907">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="C9305AF5D694A791854AE083D0DFF1ED">Jia, Feng-long</mods:namePart>
<mods:nameIdentifier id="683E9F161066E92333919CD2C663B9F5" type="ORCID">0000-0003-2391-5038</mods:nameIdentifier>
<mods:affiliation id="18903085673A75235A7408E3A649D038">Institute of Entomology, Life Sciences School, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China</mods:affiliation>
</mods:name>
<mods:name id="E190D5897300CC4F902FFFBC05647059" type="personal">
<mods:role id="DB40AE83A8685354F79F11EC9F7DD591">
<mods:roleTerm id="249E9BCA088C87C20DCD8B75DE8D98A7">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="7D23A647914607E93BE771F4F6CC72F5">Mai, Zu-qi</mods:namePart>
<mods:nameIdentifier id="E80110A6812D51600D6B737598D76E1C" type="ORCID">0000-0003-3124-2021</mods:nameIdentifier>
<mods:affiliation id="2422E6172093FB5752A2A19D7D353CF5">Institute of Entomology, Life Sciences School, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China &amp; Faculty of Environmental Sciences, Department of Ecology, Czech University of Life Sciences Prague, Czech Republic</mods:affiliation>
</mods:name>
<mods:typeOfResource id="7014B2F8E6E0FB1BA7B3E01456F097DD">text</mods:typeOfResource>
<mods:relatedItem id="054A92EF82353251D0E9205A0D10FB83" type="host">
<mods:titleInfo id="F279E7317D3D1FCE1CFAE06B753216B0">
<mods:title id="80EDD711FD720D2D865FE4EA2B8A88D7">ZooKeys</mods:title>
</mods:titleInfo>
<mods:part id="1D1934185A667C689D15D2A78EF95048">
<mods:date id="CECB7A321CC4EA215A4B1EC35A1A6C63">2024</mods:date>
<mods:detail id="A9B46BBA4A0E326FDFE9C7CBCC64C524" type="pubDate">
<mods:number id="4340386EC05E0749CDE46D76D8CA5EDD">2024-06-19</mods:number>
</mods:detail>
<mods:detail id="26E83595CBAAF0DE47C4A7F559723E04" type="volume">
<mods:number id="7670ECE40C4A418EFCEDF301DA6D245E">1205</mods:number>
</mods:detail>
<mods:extent id="5FC7AEEB3CC6404486731C05278B7DF1" unit="page">
<mods:start id="D67BE50D632F8D583593E61C6BB46990">17</mods:start>
<mods:end id="0AEC1659807C6F4FFE2481C35A65C5D7">38</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="6DB8F1C3DEBD4617808C89728E2C90F8">journal article</mods:classification>
<mods:identifier id="AA12B792B511DC96570A6F780155B6B5" type="CLB-Dataset">298668</mods:identifier>
<mods:identifier id="E5ED0AFDF6B9B1A0B279ACD7481A9D50" type="DOI">10.3897/zookeys.1205.123579</mods:identifier>
<mods:identifier id="C3368C58C8B49AC202BF8BF8FDFE5F65" type="GBIF-Dataset">7cc6f525-e465-4ce5-92de-b7b4c7ed5d8e</mods:identifier>
<mods:identifier id="118E9B4047B2545DDF961D6BAA3EA5F0" type="ZooBank">EB9D907F-1554-484A-9399-79FA6C6A4F7B</mods:identifier>
</mods:mods>
<treatment id="0FB286BF8C12536E80740C3D3C1714DD" ID-DOI="http://doi.org/10.5281/zenodo.12172866" ID-GBIF-Taxon="233237320" ID-Zenodo-Dep="12172866" ID-arpha="0FB286BF-8C12-536E-8074-0C3D3C1714DD" ID-zoobank="https://zoobank.org/2A925CD2-EC80-4A22-971E-7C0024471B48" LSID="urn:lsid:zoobank.org:act:2A925CD2-EC80-4A22-971E-7C0024471B48" LSID-ZBK="urn:lsid:zoobank.org:act:2A925CD2-EC80-4A22-971E-7C0024471B48" httpUri="http://treatment.plazi.org/id/0FB286BF8C12536E80740C3D3C1714DD">
<subSubSection id="E4D16731224E32AF9386383145D25B85" type="nomenclature">
<paragraph id="724402918E56BAAB9F166C1E7FE17808">
<taxonomicName id="77F8E14983D20D9E698865E394119911" authority="Jia &amp; Mai, 2024" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis" status="sp. nov.">
<emphasis id="1C8C6B3CD2D810977467084F2AEE292A" italics="true">Oocyclus ximaensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="D2E71CE3188AA371ED0A2FF6316DD875" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="2C8C6246676E5AAD8F0CB9958640A871" type="description">
<paragraph id="0E6C21846C5BCB09EA140F1A6F84EDFB">
<figureCitation id="98ECEA5F24729A9FB1041C5445BD78B1" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Oocyclus ximaensis sp. nov. A dorsal view B lateral view C ventral view D dorsal view of aedeagus. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1205.123579.figure3" httpUri="https://binary.pensoft.net/fig/1074374">Figs 3 A D</figureCitation>
,
<figureCitation id="C9D2709366827FB6CFD10DF8C04C5698" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Habitat of Oocyclus ximaensis sp. nov. A river valley with forests on both sides in Xima Town (Yunnan); the red arrow indicates the rock wall with flowing water B, C adults at night." figureDoi="10.3897/zookeys.1205.123579.figure5" httpUri="https://binary.pensoft.net/fig/1074376">5 A C</figureCitation>
,
<figureCitation id="7A1A4FAB134AD7DEED761B805F832F56" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Dorsal view of Chinese Oocyclus spp. A O. extensus sp. nov. B O. magnificus Hebauer &amp; Wang, 1998 C O. sumatrensis Orchymont, 1932 D O. bhutanicus Satô, 1979 E O. latiorificialis sp. nov. F O. ximaensis sp. nov. G O. fikaceki Short &amp; Jia, 2011 H O. shorti Jia &amp; Maté, 2012 I O. dinghu Short &amp; Jia, 2011. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1205.123579.figure6" httpUri="https://binary.pensoft.net/fig/1074377">6 F</figureCitation>
,
<figureCitation id="EBD119F996AC7C15B573C9F099BDAF48" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Lateral view of Chinese Oocyclus spp. A O. extensus sp. nov. B O. magnificus Hebauer &amp; Wang, 1998 C O. sumatrensis Orchymont, 1932 D O. bhutanicus Satô, 1979 E O. latiorificialis sp. nov. F O. ximaensis sp. nov. G O. fikaceki Short &amp; Jia, 2011 H O. shorti Jia &amp; Maté, 2012 I O. dinghu Short &amp; Jia, 2011. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1205.123579.figure7" httpUri="https://binary.pensoft.net/fig/1074378">7 F</figureCitation>
,
<figureCitation id="8E0218AFC1054094FF92EA34C2A496B9" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Aedeagus of Chinese Oocyclus spp. (dorsal view) A O. extensus sp. nov. B O. magnificus Hebauer &amp; Wang, 1998 C O. sumatrensis Orchymont, 1932 D O. bhutanicus Satô, 1979 E O. latiorificialis sp. nov. F O. ximaensis sp. nov. G O. fikaceki Short &amp; Jia, 2011 H O. shorti Jia &amp; Maté, 2012 I O. dinghu Short &amp; Jia, 2011. Scale bar: 0.5 mm." figureDoi="10.3897/zookeys.1205.123579.figure8" httpUri="https://binary.pensoft.net/fig/1074379">8 F</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="SECID0EAKAE" type="type material">
<paragraph id="E38946C04BE8894C8CA1D31D55891E39">
<heading id="9E8BF6166ACC4E6E43E289B611D53585" reason="title">Type material.</heading>
</paragraph>
<paragraph id="82F845D79983E26402FE4C44A20C0920">
<materialsCitation id="B9D3306F6C3EC99DE03278102022BEE1" ID-GBIF-Occurrence="4895479321" collectedFrom="at seepage rock wall by the river" collectingDate="2022-08-19" collectionCode="SYSU" collectorName="Zu-qi Mai &amp; Yu-chen Zheng &amp; Yue-zheng Yu" country="China" county="Yingjiang County" elevation="1021" latitude="24.7854" location="Jingpo Autonomous Prefecture" longLatPrecision="7" longitude="97.6472" municipality="Dehong Dai" specimenCode="SYSBMZ 2370036" specimenCount="1" specimenCount-male="1" stateProvince="Yunnan Prov." typeStatus="holotype">
<emphasis id="2D45F227D726FA464676F762DDC1BEA5" bold="true" italics="true">
<typeStatus id="26DEDEE769C85DE13B85AB5263588771" type="holotype">Holotype</typeStatus>
</emphasis>
:
<collectingCountry id="2A6ADC871F6675DA64AA25DF6D267F8D" name="China">China</collectingCountry>
<specimenCount id="C2D1B937EE9469DC6A321D0AC60B28A3" count="1" type="male"></specimenCount>
;
<collectingRegion id="E13036875B7F81DA713D6E1572EF4A6F" country="China" name="Yunnan">Yunnan Prov.</collectingRegion>
,
<collectingMunicipality id="9194FBA94C49AFCF907C07F5C5B7FE69">Dehong Dai</collectingMunicipality>
and
<location id="EBA4BA89234F7B66966CA48A7BAACDC6" LSID="urn:lsid:plazi:treatment:0FB286BF8C12536E80740C3D3C1714DD:EBA4BA89234F7B66966CA48A7BAACDC6" country="China" county="Yingjiang County" latitude="24.7854" longLatPrecision="7" longitude="97.6472" municipality="Dehong Dai" name="Jingpo Autonomous Prefecture" stateProvince="Yunnan Prov.">Jingpo Autonomous Prefecture</location>
,
<collectingCounty id="A5891CE99785C601FE62D3BD410BF40A">Yingjiang County</collectingCounty>
,
<location id="DBD1B252EE9BA45ED749766F1474EF51" LSID="urn:lsid:plazi:treatment:0FB286BF8C12536E80740C3D3C1714DD:DBD1B252EE9BA45ED749766F1474EF51" country="China" county="Yingjiang County" latitude="24.7854" longLatPrecision="7" longitude="97.6472" municipality="Dehong Dai" name="Xima Town" stateProvince="Yunnan Prov.">Xima Town</location>
,
<location id="42F419B67654AC0652398B33F1BB0014" LSID="urn:lsid:plazi:treatment:0FB286BF8C12536E80740C3D3C1714DD:42F419B67654AC0652398B33F1BB0014" country="China" county="Yingjiang County" latitude="24.7854" longLatPrecision="7" longitude="97.6472" municipality="Dehong Dai" name="Xingyun Secondary power stations" stateProvince="Yunnan Prov.">Xingyun Secondary power stations</location>
(星云二级电站),
<collectedFrom id="9CDBE718F080D34507D968EBFBD84056">at seepage rock wall by the river</collectedFrom>
,
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EOKAE" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[97.647200,24.785400]}">
<geoCoordinate id="655311CC70BF5919D01F141AD648E66F" degrees="24.7854" direction="north" orientation="latitude" precision="5" value="24.7854">24.7854 ° N</geoCoordinate>
,
<geoCoordinate id="E53AD92F7D6F7793CF33EE7F965AC2E9" degrees="97.6472" direction="east" orientation="longitude" precision="5" value="97.6472">97.6472 ° E</geoCoordinate>
</named-content>
,
<quantity id="1FB9B1C3BB105D1F87634BA42E4C257F" metricMagnitude="3" metricUnit="m" metricValue="1.021" unit="m" value="1021.0">
<elevation id="D766CCA046A8441B46151BE932122766" metricMagnitude="3" metricUnit="m" metricValue="1.021" unit="m" value="1021.0">1021 m</elevation>
</quantity>
,
<date id="2890A53A1134FBA442579B381F0C07C0" value="2022-08-19">
<collectingDate id="166DECFBF73C2AE1343C60BBC3719F1A" value="2022-08-19">2022. VIII. 19</collectingDate>
</date>
,
<collectorName id="42230A759949CF817F6D7FDC5E9691CB">Zu-qi Mai</collectorName>
,
<collectorName id="709F8B030D70BC461DCA61B78590E877">Yu-chen Zheng</collectorName>
&amp;
<collectorName id="0675B9CACB91A448E77074F6915F1542">Yue-zheng Yu</collectorName>
leg.;
<named-content id="B482A968BC91A50A151CC06E2EA5ABA2" content-type="dwc:institutional_code" xlink_href="http://grbio.org/institution/national-sun-yat-sen-university-department-biological-sciences" xlink_title="Sun Yat-sen University, Guangzhou, China">
<collectionCode id="F7F2CD4467BDF676514217B3C3D1B961">SYSU</collectionCode>
</named-content>
<specimenCode id="566D851538C3488D7D6F278A68E81EC3" collectionCode="SYSBMZ">SYSBMZ 2370036</specimenCode>
</materialsCitation>
.
<materialsCitation id="503B89875FA86CCB5B360A7D1D117F21" ID-GBIF-Occurrence="4895479313" collectedFrom="at seepage rock wall by the river" collectingDate="2022-08-19" collectionCode="SYSU" collectorName="Zu-qi Mai &amp; Yu-chen Zheng &amp; Yue-zheng Yu" country="China" county="Yingjiang County" elevation="1021" latitude="24.7854" location="Jingpo Autonomous Prefecture" longLatPrecision="7" longitude="97.6472" municipality="Dehong Dai" specimenCode="SYSBMZ 2370037" specimenCount="7" specimenCount-female="5" specimenCount-male="2" stateProvince="Yunnan Prov." typeStatus="paratype">
<emphasis id="AF9C9C820B35D97FA5D74811003B04ED" bold="true" italics="true">
<typeStatus id="A2E74B3C4CFEE7ABA616C883F5EA072A" type="paratype">Paratypes</typeStatus>
</emphasis>
:
<specimenCount id="7915F9370B16522E443454F1CF02D76D" count="2" type="male">2 ♂♂</specimenCount>
,
<specimenCount id="8195CBBA64D55B3A812C3B38BEBAF895" count="5" type="female">5 ♀♀</specimenCount>
(
<named-content id="5DBB691BF84D1923DD2BE1241B207396" content-type="dwc:institutional_code" xlink_href="http://grbio.org/institution/national-sun-yat-sen-university-department-biological-sciences" xlink_title="Sun Yat-sen University, Guangzhou, China">
<collectionCode id="A59B69AE09C00F54DADE00CAC383A530" country="Taiwan" lsid="urn:lsid:biocol.org:col:13728" name="National Sun Yat-Sen University, Department of Biological Sciences" type="Herbarium">SYSU</collectionCode>
</named-content>
<specimenCode id="EBA6AB89F3F066CC9CF6D47185A0FA67">SYSBMZ 2370037</specimenCode>
to 0043), same data as the holotype
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EALAE" type="diagnosis">
<paragraph id="FEE4A1F7744D8FFD1846B40646B80557">
<heading id="8CF5F129EFAAAF9760D5C387056BB0A1" reason="title">Diagnosis.</heading>
</paragraph>
<paragraph id="DA52FBF087DC18E456C83DDCBF03C233">
Body medium-sized, length
<quantity id="2B1669AF4069877D1F2EF534D19CE7D2" metricMagnitude="-3" metricUnit="m" metricValue="4.1" metricValueMax="4.4" metricValueMin="3.8" unit="mm" value="4.1" valueMax="4.4" valueMin="3.8">3.84.4 mm</quantity>
, oval, and rather convex. Dorsum black, with weak greenish luster, slightly iridescent. Head, pronotum, and elytra with dense ground punctures consisting of extremely fine, moderately coarse punctures. Systematic punctures on labrum moderately dense, forming a nearly continuous transverse row. Posterolateral corners of pronotum evenly rounded. Elytra suture not raised, without distinct rows of systematic punctures; lateral margins of elytra not expanded outwards. Pseudepipleura narrowed posteriorly. Procoxae without distinct, spine-like setae in fine pubescence. Meso- and metafemora without microsculpture on intervals of punctures. Abdominal ventrites with uniform pubescence over entire surface. Aedeagus (Fig.
<figureCitation id="2D94E8420B9554E5F4D9EA74034E61EE" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Oocyclus ximaensis sp. nov. A dorsal view B lateral view C ventral view D dorsal view of aedeagus. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1205.123579.figure3" httpUri="https://binary.pensoft.net/fig/1074374">3 D</figureCitation>
) with parameres almost as long as median lobe; inner margin of paramere slightly sinuate in dorsal view and hardly curved subapically; apex of paramere rounded. Median lobe gradually narrowed from base to apex; gonopore situated apically; anterior margin of gonopore pointed.
</paragraph>
<caption id="45F44AC770D9CF857D77407F84024433" ID-DOI="10.3897/zookeys.1205.123579.figure3" ID-arpha="E326B3CD-9092-5195-A06F-EC895E2B0DC3" httpUri="https://binary.pensoft.net/fig/1074374" startId="F3">
<paragraph id="765427D7CFF0017FAB1E9C40CE9EDC8B">
<label id="61C7C0F65077CF74802D0A1B100B86E0">Figure 3.</label>
</paragraph>
<paragraph id="71C0C71E2BC055B91DEA3FE901E182EB">
<taxonomicName id="A9A4C096CF747BCA3E0D14B0A18E5127" authority="Jia &amp; Mai, 2024" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis" status="sp. nov.">
<emphasis id="BF8EC15E673AFF4EFC8A134534CE5CB9" italics="true">Oocyclus ximaensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="BDA890C02E595FCA567C4E67100B228B" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="9E08A7CAEBD8A1A3EF4596EB74DC2A63" bold="true">A</emphasis>
dorsal view
<emphasis id="1EA65CFCEC379610A562B742EBA231D2" bold="true">B</emphasis>
lateral view
<emphasis id="559E2280073C2B498677DBFF976DFE3C" bold="true">C</emphasis>
ventral view
<emphasis id="C4897E0522C545F09C8FD4C3E039A803" bold="true">D</emphasis>
dorsal view of aedeagus. Scale bars: 0.5 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0EKMAE" type="description">
<paragraph id="FE5D3AAB3219A415997ACD6D62018DE0">
<heading id="F34688A37C12CC6AD9612FCB9B1BFBD3" reason="title">Description.</heading>
</paragraph>
<paragraph id="B7A3F6885D75A56509C79CA546E9DEA6">
<emphasis id="BEF04D0DC50C65FA15D5D994F8045AEB" bold="true" italics="true">Form and color</emphasis>
(Fig.
<figureCitation id="08CA0FFB6E6CDD2CE15E5F00DD6AD263" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Oocyclus ximaensis sp. nov. A dorsal view B lateral view C ventral view D dorsal view of aedeagus. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1205.123579.figure3" httpUri="https://binary.pensoft.net/fig/1074374">3 A C</figureCitation>
). Length
<quantity id="7914603CC4CE07D87F0F626C5F5943A4" metricMagnitude="-3" metricUnit="m" metricValue="4.1" metricValueMax="4.4" metricValueMin="3.8" unit="mm" value="4.1" valueMax="4.4" valueMin="3.8">3.84.4 mm</quantity>
, width
<quantity id="D0FC3E7AE7EFDF985E30CDCA4E27DB3C" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="2.7" metricValueMin="2.3" unit="mm" value="2.5" valueMax="2.7" valueMin="2.3">2.32.7 mm</quantity>
, oval, rather convex; elytra longer than wide. Dorsum black with weak greenish luster under lateral illumination, slightly iridescent, more vividly colored when alive. Maxillary palps yellow with apex black, labial palpi yellow. Mentum and stipes yellowish brown, paler than ventral face of head. Legs, epipleura, lateral margins of prosternum, and posterior margin of each ventrite light brown to yellowish brown, with remainder of venter darker yellowish brown.
<emphasis id="25DBC4AE83933FB7A16855D22A8C1D1C" bold="true" italics="true">Head.</emphasis>
Labrum, clypeus, and frons with both extremely fine and moderately coarse ground punctures, distance between punctures 1.03.5 × width of 1 puncture. Systematic punctures on labrum moderately dense, forming a nearly continuous transverse row setting with moderately long setae. Frons with an irregular row of systematic punctures mesad of each eye, bearing fine, erect setae. Clypeus with a few very indistinct systematic punctures along anterolateral margins, slightly larger than surrounding ground punctures, and bearing short setae. Antennae with scape subequal in length to antennomeres 25 combined, first 2 antennomeres of club subequal in length, and apical antennomere slightly longer than 2 preceding antennomeres combined. Maxillary palps short, subequal in length to the width of labrum, palpomere 2 slightly dilated, apical palpomeres ca 1.3 as long as penultimate. Labial palps ca 3 / 4 width of mentum. Mentum quadrate, anterior margin slightly convex, bearing very fine and scattered punctures.
<emphasis id="1ACA99EC20914EC15CD2F163AC4CA683" bold="true" italics="true">Thorax.</emphasis>
Ground punctation on pronotum and elytra composed of extremely fine and moderately coarse punctures evenly mixed and distributed. Pronotal systematic punctures present, ca 1.52.0 × size of ground punctation and set with a fine seta, sometimes partially blending with coarser ground punctures; anterior and posterior series each forming an irregular row. Lateral margins of pronotum set with a few sparsely distributed setiferous punctures. Pronotum with anterior and lateral marginal rims, posterior marginal rim absent. Posterolateral corners of pronotum evenly rounded. Prosternum moderately tectiform, with median carina along entire length but without distinct anteromedial tooth. Elytra without distinct rows of larger punctures, systematic punctures almost as coarse as coarser ground punctures, distinguished by the presence of fine and short setae; lateral margins of elytra not expanded outwards; elytra suture not raised. Pseudepipleura narrowed posteriorly. Mesoventral process with lateral extensions sloping evenly downward. Metaventrite posteromedially with an oval, glabrous area, slightly longer than wide, length of glabrous area ca 2 / 3 of total length of metaventrite. Pro- and mesocoxae densely pubescent; without distinct spine-like setae. Ventral surface of profemora densely pubescent at basal 1 / 5, remainder scattered with fine punctures, interstices smooth, without microsculpture; meso- and metafemora glabrous, with coarse punctures and without microsculpture. Protibiae with several spines on dorsal face. Fifth tarsomere of pro- and mesotarsus subequal in length to the preceding 4 tarsomeres combined. Fifth metatarsomere equal in length to second tarsomere.
<emphasis id="12D544DEF9B90A2D1542F33B9DB83254" bold="true" italics="true">Abdomen.</emphasis>
Abdominal ventrites 15 with uniform pubescence; longest setae about as long as setae around metaventral glabrous area. Fifth ventrite entire.
<emphasis id="8E30717F8C26EF122A4599931163331A" bold="true" italics="true">Aedeagus</emphasis>
(Fig.
<figureCitation id="068C4C56E7BB2454994E923A3C8BB094" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Oocyclus ximaensis sp. nov. A dorsal view B lateral view C ventral view D dorsal view of aedeagus. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1205.123579.figure3" httpUri="https://binary.pensoft.net/fig/1074374">3 D</figureCitation>
). Phallobase slightly arcuate at basal 2 / 3; manubrium gradually narrowed at posterior 1 / 3 and rounded posteriorly. Parameres slightly longer than phallobase, widest at the base and gradually narrowed; inner margin of paramere slightly sinuate in dorsal view and hardly subapically curved; apex rounded. Median lobe almost as long as parameres, gradually narrowed from base to apex; gonopore triangular, apically situated; anterior margin of gonopore pointed.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EJNAE" type="remarks">
<paragraph id="781EC2DEA60D2871C2F2AF69131AF6A6">
<heading id="19FB2587062434C18E08065CE0ADC048" reason="title">Remarks.</heading>
</paragraph>
<paragraph id="F847BF9C94B3899D67FF69010BE4AB1B">
This species is very similar to
<taxonomicName id="375CC02562158D6FC0E3905FBFA85A62" authority="Sato, 1979" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="C10B2E016990A6E8DEECCBEF48508F6D" italics="true">O. bhutanicus</emphasis>
<bibRefCitation id="3ABD93C29DEF53781FFCBE25B45197B5" author="Satô M" journalOrPublisher="Entomologica Basiliensia" pagination="43-67" refId="B10" refString="Sato M (1979) Ergebnisse der Bhutan-Expedition 1972 und Indien-Nepal-Expeditionen 1975 - 1977 des Naturhistorischen Museums in Basel. Coleoptera: Fam. Georissidae, Hydraenidae, Hydrophilidae und Ptilodactylidae. Entomologica Basiliensia 4: 43 - 67." title="Ergebnisse der Bhutan-Expedition 1972 und Indien-Nepal-Expeditionen 1975-1977 des Naturhistorischen Museums in Basel. Coleoptera: Fam. Georissidae, Hydraenidae, Hydrophilidae und Ptilodactylidae." volume="4" year="1979">Satô, 1979</bibRefCitation>
</taxonomicName>
, but it can be distinguished from the latter by dorsum with weak greenish luster under lateral illumination (vs distinct greenish luster in
<taxonomicName id="E94DFE7011F55616061C743AA0874097" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="EEB377B879DFF21ACF9A3F5C9BE2E923" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
), aedeagus with median lobe as long as parameres (vs shorter than parameres in
<taxonomicName id="0ACE0ADFDC7F36ADDB8E6EE2723E6F49" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="8D2ECB4D44C2E2E22249A24D032F1F86" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
), anterior margin of gonopore pointed (rounded in
<taxonomicName id="74AC18BAA6ADBA89C48B7B2BC67389AE" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="5F8E5AB66A7EF1D6B0C18B8410A816B3" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="SECID0E2OAE" type="etymology">
<paragraph id="22BDD67B268825406438FF4DD800BEAD">
<heading id="5AFB02AD62070C28C5D4D613BD261B73" reason="title">Etymology.</heading>
</paragraph>
<paragraph id="BB6976A997CC64B6EFF6083FDCB3A48F">This species is named after Xima Town, where the type locality is located.</paragraph>
</subSubSection>
<subSubSection id="SECID0EAPAE" type="biology">
<paragraph id="E144DAD35C4D597266297DDB3C4FD159">
<heading id="CA74B523621D61EE9C12BF5047640EE0" reason="title">Biology.</heading>
</paragraph>
<paragraph id="F70BC5C65E9C6C4A169F69CA0CEFB70E">
(Fig.
<figureCitation id="6CF2D65DBE3628EEB4D6BA90100A7C48" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Habitat of Oocyclus ximaensis sp. nov. A river valley with forests on both sides in Xima Town (Yunnan); the red arrow indicates the rock wall with flowing water B, C adults at night." figureDoi="10.3897/zookeys.1205.123579.figure5" httpUri="https://binary.pensoft.net/fig/1074376">5 A C</figureCitation>
) This species was found on the surface of vertical stone walls with seepage on the side of the river valley.
</paragraph>
<caption id="E05CBC205A2702FF8D569CFBB394F451" ID-DOI="10.3897/zookeys.1205.123579.figure4" ID-arpha="67BC9E38-9F9E-545F-99B7-9E56DA1C1001" httpUri="https://binary.pensoft.net/fig/1074375" startId="F4">
<paragraph id="FD4DD99276383EB4BA9EC30F7B9E720B">
<label id="29AEE645688C8F3B42D944146830EABC">Figure 4.</label>
</paragraph>
<paragraph id="84742D88B28C4C7B191C47A10FF5D45D">
Habitats of
<taxonomicName id="7DEBF7ACD7CAFCC41DB556CA3A9DECAE" authority="Jia &amp; Mai, 2024" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="extensus" status="sp. nov.">
<emphasis id="3F1DDEE42EC8B8B08678B8FF2DB881F4" italics="true">Oocyclus extensus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="7199EA9335A70B0C073ED801EC891402" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="247C9AE8E8F986B6161C0DD53396D61B" bold="true">A</emphasis>
valley at Zhêntang Town (Xizang), roadside with waterfalls
<emphasis id="4CCF0CECC21D4090493C32D7A3DF9F49" bold="true">B</emphasis>
wet rock with fine flowing water
<emphasis id="D1075296724C716B62657DA98E1716C3" bold="true">C, D</emphasis>
adults at night.
</paragraph>
</caption>
<caption id="6961875A3257E0041608F311AE63FE99" ID-DOI="10.3897/zookeys.1205.123579.figure5" ID-arpha="21734DA6-FB42-5C66-AC02-A842E97B95BB" httpUri="https://binary.pensoft.net/fig/1074376" startId="F5">
<paragraph id="BCE48F7FE7DF1B0BDF65212DBDE020AF">
<label id="38A0989B941BE26C57C2F78CB635E686">Figure 5.</label>
</paragraph>
<paragraph id="F5A61FF4236A56057401D96C5376D677">
Habitat of
<taxonomicName id="15666EF451099C10458CF985A0F60B24" authority="Jia &amp; Mai, 2024" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis" status="sp. nov.">
<emphasis id="40D557D6513064530C0D013E6136A82C" italics="true">Oocyclus ximaensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="39ADA64291A0053D2315D48DA5BAA7A4" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="3B77EF35B5DF377A11335F473ABA7CC8" bold="true">A</emphasis>
river valley with forests on both sides in Xima Town (Yunnan); the red arrow indicates the rock wall with flowing water
<emphasis id="82657E77DCDBA41318ED4FAB7B01530E" bold="true">B, C</emphasis>
adults at night.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0EERAE" type="distribution">
<paragraph id="C2DC7EC4CEF2FFE1EB78DB0C578F81F0">
<heading id="FD63C1EBA27B13B65F65BD400C771C7D" reason="title">Distribution.</heading>
</paragraph>
<paragraph id="F372EE77354F3E49093F74ADF291078D">
(Fig.
<figureCitation id="AEE1A5416F2D78542C61A97131FBF259" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Distribution maps of Chinese Oocyclus spp." figureDoi="10.3897/zookeys.1205.123579.figure9" httpUri="https://binary.pensoft.net/fig/1074380">9</figureCitation>
)
<collectingCountry id="4DB74D23003DAC6FF9F6490A41F24B06" name="China">China</collectingCountry>
(
<collectingRegion id="56E6B7ACECEA6A206237CF3318B766A6" country="China" name="Yunnan">Yunnan</collectingRegion>
). Only known from type locality.
</paragraph>
</subSubSection>
</treatment>
</document>