treatments-xml/data/C5/F4/E4/C5F4E4DDBB375BA6B5C594953C815B47.xml

<document id="559EEA5BF0E0FDA8EB8B1E9439D2BBCB" 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="C5F4E4DDBB375BA6B5C594953C815B47" 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 latiorificialis Jia &amp; Mai 2024, sp. nov." docType="treatment" 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">
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<mods:title id="5C86BBC9BD7B744A11824DCAF7FBB026">Three new species of Oocyclus Sharp, 1882, with additional records from China (Coleoptera, Hydrophilidae, Laccobiini)</mods:title>
</mods:titleInfo>
<mods:name id="E1FE7BA51777D2E1AC1DDF9B974D192C" type="personal">
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<mods:namePart id="35BD770CB056322CF7D365BB55C6AFF0">Jia, Feng-long</mods:namePart>
<mods:nameIdentifier id="BF35B7AEC482C4A9176C6B3961FF377E" type="ORCID">0000-0003-2391-5038</mods:nameIdentifier>
<mods:affiliation id="C4B8F7DDC6D00514D3B7E9A0E48922A3">Institute of Entomology, Life Sciences School, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China</mods:affiliation>
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<mods:namePart id="EC7A576E64F6234A5360176B8CC007FD">Mai, Zu-qi</mods:namePart>
<mods:nameIdentifier id="85B2CD34F6485C4BE74FFBF237152BA7" type="ORCID">0000-0003-3124-2021</mods:nameIdentifier>
<mods:affiliation id="684E745B5AF566A82A00F2E6031B21B8">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>
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<mods:date id="7F94B142207883DB7A828D3855288593">2024</mods:date>
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<treatment id="C5F4E4DDBB375BA6B5C594953C815B47" ID-DOI="http://doi.org/10.5281/zenodo.12172858" ID-GBIF-Taxon="233237313" ID-Zenodo-Dep="12172858" ID-arpha="C5F4E4DD-BB37-5BA6-B5C5-94953C815B47" ID-zoobank="https://zoobank.org/7793C4B1-3AAC-4664-9D8F-B8E4EE74BBDC" LSID="urn:lsid:plazi:treatment:C5F4E4DDBB375BA6B5C594953C815B47" LSID-ZBK="urn:lsid:zoobank.org:act:7793C4B1-3AAC-4664-9D8F-B8E4EE74BBDC" httpUri="http://treatment.plazi.org/id/C5F4E4DDBB375BA6B5C594953C815B47">
<subSubSection id="EC509458AD0DB605C585581909BAD2BD" type="nomenclature">
<paragraph id="C4CD60A33DAFB47346BD24C114722155">
<taxonomicName id="265FD5B36CFE82A82D86D81C7FCD5E73" 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="latiorificialis" status="sp. nov.">
<emphasis id="C12AC2F6AD4A6707558155A51CBA1714" italics="true">Oocyclus latiorificialis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1B19B24651EAA6541DEE9AAA25717408" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="797343046249C00916F021B4A4D5D08A" type="description">
<paragraph id="7051CDCF24215B94C45AE370776C28B0">
<figureCitation id="43F410C646F6261252E4D02F13629DBF" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Oocyclus latiorificialis 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.figure2" httpUri="https://binary.pensoft.net/fig/1074373">Figs 2 A – D</figureCitation>
, 
<figureCitation id="3EA7473B1637D94C44DD27AA253F1FA0" 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 E</figureCitation>
, 
<figureCitation id="072EE9306596B785F11A4730118C22E6" 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 E</figureCitation>
, 
<figureCitation id="8102A878946D85082C511152DD2D625A" 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 E</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="SECID0EDAAE" type="type material">
<paragraph id="35798671300C6668F2D81816F9023109">
<heading id="B226E5DCB859781EDAB9CC87573A3A8F" reason="title">Type material.</heading>
</paragraph>
<paragraph id="5718E372907F926FB88789BB6D420AFC">
<materialsCitation id="AB45371C37F71707C172254A79FAC2A2" ID-GBIF-Occurrence="4895479325" collectedFrom="on wet rock with fine flowing water" collectingDate="2021-05-17" collectionCode="SYSU" collectorName="Zhuo-yin Jiang &amp; Zhen-ming Yang &amp; Zu-qi Mai" country="China" county="Lushui County" elevation="2131" latitude="26.014038" location="Pianma Village" longLatPrecision="1" longitude="98.65064" municipality="Nujiang Lisu Autonomous Prefecture" specimenCode="SYSBMZ 2370018" specimenCount="1" specimenCount-male="1" stateProvince="Yunnan Province" typeStatus="holotype">
<emphasis id="DCAA1FB3B10424345C94F6F665058B02" bold="true" italics="true">
<typeStatus id="0ED1FD1D281A2B490EC98B60F6307E87" type="holotype">Holotype</typeStatus>
</emphasis>
: 
<collectingCountry id="364F9540013C7A442BF283D6F5045C7B" name="China">China</collectingCountry>
• 
<specimenCount id="9FCC8CB9B672527128234D5C94966DFD" count="1" type="male">♂</specimenCount>
; 
<collectingRegion id="EF3BB8C8B5F31074A89E816AA9C36718" country="China" name="Yunnan">Yunnan Province</collectingRegion>
, 
<collectingMunicipality id="B4C612313E4B4CFA8F2237B328A50351">Nujiang Lisu Autonomous Prefecture</collectingMunicipality>
, 
<collectingCounty id="8C7E79E91590C14764438A3B0433322F">Lushui County</collectingCounty>
, 
<location id="D9D4468B79C397653F9E66BF2C955C57" LSID="urn:lsid:plazi:treatment:C5F4E4DDBB375BA6B5C594953C815B47:D9D4468B79C397653F9E66BF2C955C57" country="China" county="Lushui County" latitude="26.014038" longLatPrecision="1" longitude="98.65064" municipality="Nujiang Lisu Autonomous Prefecture" name="Pianma Village" stateProvince="Yunnan Province">Pianma Village</location>
, 
<collectedFrom id="99C016479FDF79A5D9D8325661B8E171">on wet rock with fine flowing water</collectedFrom>
(怒江傈僳族自治州泸水市片马村流水岩壁); 
<named-content content-type="dwc:verbatimCoordinates" id="NCID0ERAAE" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[98.650640,26.014039]}">
<geoCoordinate id="FD0BD9C0C7CCFAA53D24B7D3D205EC95" degrees="26.014039" direction="north" orientation="latitude" precision="1" value="26.014038">26.014039 ° N</geoCoordinate>
, 
<geoCoordinate id="28A00B9FC148BB770CE64FD85123433C" degrees="98.650640" direction="east" orientation="longitude" precision="1" value="98.65064">98.650640 ° E</geoCoordinate>
</named-content>
; 
<quantity id="FDE0E7B611048D87A63BDFB085DBF3CA" metricMagnitude="3" metricUnit="m" metricValue="2.131" unit="m" value="2131.0">
<elevation id="227426FE3B3ED8BBFED38CEF7C70E69E" metricMagnitude="3" metricUnit="m" metricValue="2.131" unit="m" value="2131.0">2131 m</elevation>
</quantity>
elev.; 
<date id="1AD1D2B4D2C94B3DD065E0168404F9DA" value="2021-05-17">
<collectingDate id="163C395B8555EE5F8352500056221623" value="2021-05-17">2021. V. 17</collectingDate>
</date>
; 
<collectorName id="C682B988664559B85BE7B00A99CC1F51">Zhuo-yin Jiang</collectorName>
, 
<collectorName id="D9C28B6598F39D64C7E12C44491E8EAB">Zhen-ming Yang</collectorName>
&amp; 
<collectorName id="CF7B283E546DD922AB4F394A960327F6">Zu-qi Mai</collectorName>
leg.; 
<named-content id="BD5A3165BAE00222A0312F182C7B60E4" 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="87E583942FF948FA5D6F4766D89B8B27">SYSU</collectionCode>
</named-content>
<specimenCode id="2287173395ADE4F97F5A1DB8085A710F" collectionCode="SYSBMZ">SYSBMZ 2370018</specimenCode>
</materialsCitation>
. 
<materialsCitation id="3D9D9428BB4FEB53C6A864182DB7E453" ID-GBIF-Occurrence="4895479327" collectedFrom="on wet rock with fine flowing water" collectingDate="2021-05-17" collectionCode="SYSU" collectorName="Zhuo-yin Jiang &amp; Zhen-ming Yang &amp; Zu-qi Mai" country="China" county="Lushui County" elevation="2131" latitude="26.014038" location="Pianma Village" longLatPrecision="1" longitude="98.65064" municipality="Nujiang Lisu Autonomous Prefecture" specimenCode="SYSBMZ 2370019" specimenCount="1" specimenCount-male="1" stateProvince="Yunnan" typeStatus="paratype">
<emphasis id="0016307A3EE68568F8CB75FADDADCA08" bold="true" italics="true">
<typeStatus id="22CE214A6EC87A3314229B1244C57922" type="paratype">Paratypes</typeStatus>
</emphasis>
: 
<specimenCount id="2CE6F037C968E205C32C78C58C2939DB" count="1" type="male">1 ♂</specimenCount>
; same data as the holotype; 
<named-content id="CBFC60874BB806518D4FF601CC61AC82" 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="CE7A7CCFF4AA9D254D7094F192853186">SYSU</collectionCode>
</named-content>
<specimenCode id="545436A96EEB825ABACAB23A6D79D350" collectionCode="SYSBMZ">SYSBMZ 2370019</specimenCode>
</materialsCitation>
. • 
<materialsCitation id="C9C4FA14614FE4C729883876D2A2EC9C" ID-GBIF-Occurrence="4895479315" collectingDate="2016-05-17" collectionCode="SYSU" collectorName="Yu-dan Tang &amp; Rui-juan Zhang" country="China" county="Lushui County" elevation="2424" latitude="26.1" location="Yaojiaping" longLatPrecision="5577" longitude="98.71" specimenCode="SYSBMZ 2370020, 0035" specimenCount="1" stateProvince="Yunnan Prov." typeStatus="paratype">
16 unsexed spec.; 
<collectingRegion id="3E111FD118D439D10497419A527CEFE7" country="China" name="Yunnan">Yunnan Prov.</collectingRegion>
, 
<collectingCounty id="A23B94E76C13D50633C68E64274F8D16">Lushui County</collectingCounty>
, 
<location id="896256DEB74E37D16CA6269437CE4025" LSID="urn:lsid:plazi:treatment:C5F4E4DDBB375BA6B5C594953C815B47:896256DEB74E37D16CA6269437CE4025" country="China" county="Lushui County" latitude="26.1" longLatPrecision="5577" longitude="98.71" name="Yaojiaping" stateProvince="Yunnan Prov.">Yaojiaping</location>
(泸水县姚家坪); 
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EGBAE" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[98.710000,26.100000]}">
<geoCoordinate id="26BB5983857603063258279088CAC040" degrees="26.1" direction="north" orientation="latitude" precision="5555" value="26.1">26.1 ° N</geoCoordinate>
, 
<geoCoordinate id="A2FCAF8EEA9A19F15A7771235AD037EC" degrees="98.71" direction="east" orientation="longitude" precision="555" value="98.71">98.71 ° E</geoCoordinate>
</named-content>
; 
<quantity id="45462D07ADA5F3EF6529DC3976EAD2AA" metricMagnitude="3" metricUnit="m" metricValue="2.424" unit="m" value="2424.0">
<elevation id="EB04C8B58385BA0999FCD0F71C3B89CD" metricMagnitude="3" metricUnit="m" metricValue="2.424" unit="m" value="2424.0">2424 m</elevation>
</quantity>
elev.; 
<date id="146DF8C7E7EE356E07C6A545199E9CEA" value="2016-05-17">
<collectingDate id="7529FDD2493CC3D71EC94BABF0DF353E" value="2016-05-17">2016. V. 17</collectingDate>
</date>
; 
<collectorName id="6CB9B47593946AACD1B677C64E263426">Yu-dan Tang</collectorName>
&amp; 
<collectorName id="4FE3B001F827D333E407647601D60258">Rui-juan Zhang</collectorName>
leg.; 
<named-content id="C293127CBC8B6115090963BD5FF7C28A" 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="DE95F9152A00B1F8B3D5FC6A86E2FE6B">SYSU</collectionCode>
</named-content>
<specimenCode id="B05C8112DFE99ED1ADAF15DCA0491D55" collectionCode="SYSBMZ">SYSBMZ 2370020</specimenCode>
to 
<specimenCode id="4C0A659A2DEC0237E58396093788AC41" collectionCode="SYSBMZ">0035</specimenCode>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EQBAE" type="diagnosis">
<paragraph id="6B28DAD7B6805FCFC4AE6BE20E57774D">
<heading id="3E1D17A24F8676E4DDCF5715E2D1DB45" reason="title">Diagnosis.</heading>
</paragraph>
<paragraph id="F9A625211A410518983B9D82AC3490BD">
Body medium-sized, length 
<quantity id="F3FDF506C8A1C865BF68E6979471AAC3" metricMagnitude="-3" metricUnit="m" metricValue="4.199999999999999" metricValueMax="4.3" metricValueMin="4.1" unit="mm" value="4.199999999999999" valueMax="4.3" valueMin="4.1">4.1–4.3 mm</quantity>
, oval, and rather convex. Dorsum black, with distinct greenish luster under lateral illumination, slightly iridescent. Head, pronotum, and elytra with dense ground punctures consisting of extremely fine and moderately coarse punctures. Systematic punctures on labrum moderately dense, forming a nearly continuous transverse row. Posterolateral corners of pronotum evenly rounded. Elytral 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 with fine microsculpture on intervals of punctures. Abdominal ventrites with uniform pubescence over entire surface. Aedeagus (Fig. 
<figureCitation id="C92E6646F99F73117AAC614AF98AE507" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Oocyclus latiorificialis 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.figure2" httpUri="https://binary.pensoft.net/fig/1074373">2 D</figureCitation>
) with parameres almost as long as median lobe; inner margin of paramere sinuate in dorsal view and distinctly, subapically curved inward; apex of paramere broadly rounded. Median lobe parallel-sided medially, slightly widened at site of gonopore; gonopore situated apically; anterior margin of gonopore pointed.
</paragraph>
<caption id="0827F9BC9EF964BF943D09AE53829770" ID-DOI="10.3897/zookeys.1205.123579.figure2" ID-arpha="62F3EBE2-293F-5913-8AC3-3DDC6B97157C" httpUri="https://binary.pensoft.net/fig/1074373" startId="F2">
<paragraph id="A22B947039EFDAC606071AA3754E4A2D">
<label id="99157F1CAF3D7CED93565BE3F234C21E">Figure 2.</label>
</paragraph>
<paragraph id="B6DDC08C93A4A384E8B9FECB2FB28C8D">
<taxonomicName id="1F418C60730313AF070DD935C7C959C0" 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="latiorificialis" status="sp. nov.">
<emphasis id="75452574D95F68B70788D94813D93B05" italics="true">Oocyclus latiorificialis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="168604C27EBAB564329BD897517B410D" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="D5B45645F8A41A04B99A4E49BCD11CA4" bold="true">A</emphasis>
dorsal view 
<emphasis id="A9A9EAC7B6DDF1E5E6451E0D3A238C03" bold="true">B</emphasis>
lateral view 
<emphasis id="D9D0CD08651DD575960872EF7CFB55CF" bold="true">C</emphasis>
ventral view 
<emphasis id="F7AB7D97EC42C4B90DCF7910763CBC6D" bold="true">D</emphasis>
dorsal view of aedeagus. Scale bars: 0.5 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0E1CAE" type="description">
<paragraph id="AFF824293FACFAEC72916ADFDEB039A6">
<heading id="E14A95F08BF9A02EDD918F1DD2F26F7B" reason="title">Description.</heading>
</paragraph>
<paragraph id="EF507709BD8579F16AD9D6EA9F403B08">
<emphasis id="EC7EB96C1462A213FFE18BDDAD96160B" bold="true" italics="true">Form and color</emphasis>
(Fig. 
<figureCitation id="161FB4EEAA8562DF3646A754A09AEF71" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Oocyclus latiorificialis 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.figure2" httpUri="https://binary.pensoft.net/fig/1074373">2 A – C</figureCitation>
). Length 
<quantity id="FE55D05811BD1E6D9DE9FD5DCA712E77" metricMagnitude="-3" metricUnit="m" metricValue="4.25" metricValueMax="4.4" metricValueMin="4.1" unit="mm" value="4.25" valueMax="4.4" valueMin="4.1">4.1–4.4 mm</quantity>
width 
<quantity id="DCE842CC57E9248EBCB36DEA7D51DC0D" metricMagnitude="-3" metricUnit="m" metricValue="2.55" metricValueMax="2.7" metricValueMin="2.4" unit="mm" value="2.55" valueMax="2.7" valueMin="2.4">2.4–2.7 mm</quantity>
, oval, rather convex; elytra longer than wide. Dorsum black, with distinct greenish luster under lateral illumination, slightly iridescent, more vividly colored when alive. Maxillary palps yellow, with apex black; labial palpi yellow. Mentum and stipes light to reddish brown, paler than ventral face of head. Legs, epipleura, lateral margins of prosternum, and posterior margin of each ventrite light brown to dark reddish brown, with remainder of venter darker reddish brown. 
<emphasis id="0EC124EBE3B6C961C6EFCC5A2EFD2EA6" bold="true" italics="true">Head.</emphasis>
Labrum, clypeus, and frons with both extremely fine and moderately coarse ground punctures, distance between punctures 0.5–4.0 × as the width of 1 puncture. Systematic punctures on labrum moderately dense, forming a nearly continuous transverse row, 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 2–5 combined; first two antennomeres of club subequal in length, and apical antennomere slightly longer than two preceding antennomeres combined. Maxillary palps short, subequal in length to the width of labrum; palpomere 2 slightly dilated, apical palpomere ca 1.3 as long as penultimate. Labial palpi ca 3 / 4 width of mentum. Mentum quadrate, anterior margin slightly convex, bearing very fine and scattered punctures. 
<emphasis id="027642B55FBD243566C454EEF832C95A" 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 1.5–2.0 × 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, 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 about 2 / 3 of the 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 with fine microsculpture; meso- and metafemora glabrous, with coarse punctures and fine 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="FC9C8D57F4B02F7D8C97E81738A2D886" bold="true" italics="true">Abdomen.</emphasis>
Abdominal ventrites 1–5 with uniform pubescence, longest setae about as long as the setae around the metaventral glabrous area. Fifth ventrite entire. 
<emphasis id="453CA04411D34AF702F3E7ADEDDFAFA5" bold="true" italics="true">Aedeagus</emphasis>
(Fig. 
<figureCitation id="F1B98DADA3540B9CB6AD1B9DE509F4BA" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Oocyclus latiorificialis 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.figure2" httpUri="https://binary.pensoft.net/fig/1074373">2 D</figureCitation>
). Phallobase parallel-sided to slightly arcuate at basal half, manubrium gradually narrowed at posterior 1 / 2 of phallobase and rounded posteriorly. Parameres slightly longer than phallobase, widest at the base and gradually narrowed, inner margin of paramere sinuate in dorsal view and distinctly curved subapically; apices broadly rounded. Median lobe almost as long as parameres, parallel-sided medially, and slightly widened at site of gonopore; gonopore triangular, situated apically, and with pointed anterior margin.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EZDAE" type="remarks">
<paragraph id="B91B3F95AEE2711ACB07953C4BAB025B">
<heading id="12E2829E6958F3A7B6E5B1D6CF1A8324" reason="title">Remarks.</heading>
</paragraph>
<paragraph id="460AAC31F086852F937F2D41C6A4F459">
This species is very similar to 
<taxonomicName id="6C77896BB6C3A0D9CBA851E2A892D68A" 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="1602B3E927DFD0939C7CAF19039CC229" italics="true">O. bhutanicus</emphasis>
<bibRefCitation id="768E5838DC5B4E101306C4FD8B52A11E" 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 can be easily distinguished by meso- and metafemora with fine microsculpture on intervals of punctures (vs lacking microsculpture in 
<taxonomicName id="F7C18457D93B9B00A8FA4728EE4CAC93" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="9582507EB94462E62FAE51BF8E24E459" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
), aedeagus with median lobe as long as parameres and almost parallel-sided medially, slightly widened at level of gonopore (vs median lobe shorter than parameres and gradually narrowed from base to apex in 
<taxonomicName id="C5BB2FEF75387FA9014C8A82CC35194C" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="DCA56DE2EE07120C333FF12C0AD648BD" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
), anterior margin of gonopore pointed (vs rounded in 
<taxonomicName id="105A1C9B91060E70BBAFA81A5BC77B61" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="0905EC3C84FBDD6687A10327F1CB2F77" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
), and inner margin of paramere sinuate in dorsal view and distinctly curved subapically (vs inner margin of paramere almost straight in dorsal view in 
<taxonomicName id="C7F92EB76CAC4EA80C59DD9A3462B838" authorityName="Sato" authorityYear="1979" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="bhutanicus">
<emphasis id="7F6BFC0FDD0E70402931C8E543B20120" italics="true">O. bhutanicus</emphasis>
</taxonomicName>
). This species also shares diagnostic features with 
<taxonomicName id="AEB941A442620E319DE8AABB1BC36C26" 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="7F108B430576411F1E00EE4AAA686D9D" italics="true">O. ximaensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="191F6F6099BCB050C9F34CF29CC51F26" rank="species">sp. nov.</taxonomicNameLabel>
, but it can be distinguished from the latter by dorsum with distinct greenish luster under lateral illumination (vs greenish luster weaker in 
<taxonomicName id="D7D91562A806A58F39359CFAD8AE8FEF" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis">
<emphasis id="48B0C412EB16E0FDD9D7EE2DAD5389D9" italics="true">O. ximaensis</emphasis>
</taxonomicName>
), meso- and metafemora with fine microsculpture (lacking microsculpture in 
<taxonomicName id="DE151708CB3ADB5EE586F7580DADF69B" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis">
<emphasis id="6A435874EBC9B22A532494C13F8599F2" italics="true">O. ximaensis</emphasis>
</taxonomicName>
), and aedeagus with median lobe almost parallel-sided medially, slightly widened at level of gonopore (vs median lobe gradually narrowed from base to apex in 
<taxonomicName id="7FAD3B56001ABB5D42F3D2060F8FCB6B" authorityName="Jia &amp; Mai" authorityYear="2024" class="Insecta" family="Hydrophilidae" genus="Oocyclus" kingdom="Animalia" order="Coleoptera" phylum="Arthropoda" rank="species" species="ximaensis">
<emphasis id="93F615E64F8B8C3BE5E6EBBBB97C09FE" italics="true">O. ximaensis</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="SECID0ECHAE" type="etymology">
<paragraph id="24EC97E34632D81B7C3335FCF7E5B471">
<heading id="5B4E336C7B9B2FEE82BEF94ECE79E196" reason="title">Etymology.</heading>
</paragraph>
<paragraph id="DF3CB813E54A06460115C470E525E418">
Species name is combination of Latin 
<emphasis id="13FBEC3B1F6F40496812CFF45188D2EF" italics="true">latus</emphasis>
, “ wide ”, and 
<emphasis id="9AB7AAC49AFE0050D698DAE7A229E17C" italics="true">orificialis</emphasis>
, “ orifice ”, referring to the widely open gonopore.
</paragraph>
</subSubSection>
<subSubSection id="SECID0EUHAE" type="biology">
<paragraph id="682278A78C5ECF3E750E3D4432FF2D2D">
<heading id="52AAE80F2EBFC5721A596C1D38C3CDB3" reason="title">Biology.</heading>
</paragraph>
<paragraph id="1819215F21796B18BABA5892138407D9">This species was founding living on wet rock surface at the margins of a waterfall.</paragraph>
</subSubSection>
<subSubSection id="SECID0EZHAE" type="distribution">
<paragraph id="41B4E3AE84AB5095D321E44E7CC33061">
<heading id="22A69F4BC47B3F688BA8CC8229E5F6CB" reason="title">Distribution.</heading>
</paragraph>
<paragraph id="46754AAB9EF4987E388BCFA5BACCC5C5">
(Fig. 
<figureCitation id="F314F452030398D01DF1027FE1304AF6" 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="87FCCA1CB41B0AE8791A4939DE0B3387" name="China">China</collectingCountry>
(
<collectingRegion id="49AA7BED49E0E1BE098D6AE828257169" country="China" name="Yunnan">Yunnan</collectingRegion>
). Only known from type locality.
</paragraph>
</subSubSection>
</treatment>
</document>