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<document id="FF26773AA6E3860047562F7D044AC232" ID-CLB-Dataset="3307" ID-DOI="10.11646/zootaxa.5071.1.5" ID-GBIF-Dataset="f5a054cf-41c7-40cd-bac9-63e1ea8d1b8e" ID-ISSN="1175-5326" ID-Zenodo-Dep="5723327" ID-ZooBank="C7DFE939-E932-4570-8496-7A67A51D4D7A" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1637742853538" checkinUser="plazi" docAuthor="Suksai, Benjamart, Gustafson, Grey T., Sites, Robert W. &amp; Sangpradub, Narumon" docDate="2021" docId="03DC697BFF8FFFD877CAFF3FFECDF8BE" docLanguage="en" docName="zootaxa.5071.1.5.pdf" docOrigin="Zootaxa 5071 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Dineutus australis" docType="treatment" docVersion="7" lastPageNumber="103" masterDocId="FFE51103FF89FFDE775DFFE0FFABFFCF" masterDocTitle="The Gyrinidae (Coleoptera) fauna of Thailand: Key to tribes and genera, with new records and keys to species of Dineutini and Gyrinini" masterLastPageNumber="117" masterPageNumber="97" pageNumber="103" updateTime="1699469841920" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="23439E80FC3F894D8A65B2C3CFB387AD">The Gyrinidae (Coleoptera) fauna of Thailand: Key to tribes and genera, with new records and keys to species of Dineutini and Gyrinini</mods:title>
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<mods:namePart id="C899FC3B1BFCC667FD7D98CDC6F3CDE1">Suksai, Benjamart</mods:namePart>
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<mods:affiliation id="E00BE6F2F5E6108B310F9D91A3AD2437">Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas 66045, USA. &amp; Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, 86011, USA.</mods:affiliation>
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<mods:affiliation id="59FFC90BECC5D6C0CC436055125C10E1">Enns Entomology Museum, Division of Plant Science, University of Missouri-Columbia, Missouri 65211, USA. SitesR @ missouri. edu; https: // orcid. org / 0000 - 0002 - 3895 - 813 X</mods:affiliation>
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<taxonomicName id="4C75A3EEFF8FFFD877CAFF3FFDFAFF36" authority="(Fabricius, 1775)" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[151,593,223,250]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
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<emphasis id="B901047FFF8FFFD877CAFF3FFEDEFF35" bold="true" box="[151,373,223,250]" italics="true" pageId="6" pageNumber="103">Dineutus australis</emphasis>
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(
<figureCitation id="134EC4E8FF8FFFD877C2FEE3FE8FFED2" box="[159,292,259,285]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Figs. 1CD</figureCitation>
,
<figureCitation id="134EC4E8FF8FFFD8766DFEE3FEFFFED2" box="[304,340,259,285]" captionStart="FIGURE 4" captionStartId="7.[151,250,1575,1599]" captionTargetBox="[157,1429,181,1551]" captionTargetId="figure-18@7.[157,1429,181,1551]" captionTargetPageId="7" captionText="FIGURE 4. SEM photographs of protochanters in species of Dineutus and Porrorhynchus (males): (A) D. australis, patch of thick setae (arrow), scale bar = 100 μm; (B) D. sitesi, protrochanter without setae (arrow), scale bar = 1 mm; (C) D. spinosus, setae (arrow), scale bar = 100 μm; (D) D. unidentatus, setae (arrow), scale bar = 100 μm; (EF) P. marginatus, cluster setae (square and arrow): (E) scale bar = 500 μm; (F) scale bar = 100 μm." figureDoi="http://doi.org/10.5281/zenodo.5723335" httpUri="https://zenodo.org/record/5723335/files/figure.png" pageId="6" pageNumber="103">4A</figureCitation>
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<figureCitation id="134EC4E8FF8FFFD8763DFEE3FE0FFED1" box="[352,420,259,286]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">5AE</figureCitation>
,
<figureCitation id="134EC4E8FF8FFFD876F2FEE3FE79FED2" box="[431,466,259,285]" captionStart="FIGURE 7" captionStartId="13.[151,250,1836,1860]" captionTargetBox="[193,1395,181,1812]" captionTargetId="figure-18@13.[193,1395,181,1812]" captionTargetPageId="13" captionText="FIGURE 7. Habitats of species of Gyrinini and Dineutini: (AB) G. smaragdinus: (A) stream at Siriphum Waterfall, Doi Inthanon Natl. Park, Chiang Mai Province; (B) pond at Ban Buak Thoei, Chiang Mai Province; (C) D. australis, D. spinosus and D. unidentatus, pond at Sakaerat Environmental Research Station, Nakhon Ratchasima Province; (D) D. sitesi, Tum Din Stream, Thung Salaeng Luang Natl. Park, Phitsanulok Province; (E) D. spinosus, Huay Sae Stream, Ubon Ratchathani Province; (FG) D. unidentatus, ponds at Ban Kho, Khon Kaen Province; (H) P. marginatus, Lam Takong Stream, Nakhon Ratchasima Province." figureDoi="http://doi.org/10.5281/zenodo.5723341" httpUri="https://zenodo.org/record/5723341/files/figure.png" pageId="6" pageNumber="103">7C</figureCitation>
,
<figureCitation id="134EC4E8FF8FFFD87683FEE3FDA9FED2" box="[478,514,259,285]" captionStart="FIGURE 8" captionStartId="14.[151,250,1179,1203]" captionTargetBox="[151,1436,181,1155]" captionTargetId="figure-22@14.[151,1436,181,1155]" captionTargetPageId="14" captionText="FIGURE 8. (AB) Distributions of species of Dineutini and Gyrinini in Thailand." figureDoi="http://doi.org/10.5281/zenodo.5723345" httpUri="https://zenodo.org/record/5723345/files/figure.png" pageId="6" pageNumber="103">8A</figureCitation>
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<collectingMunicipality id="6BAE4217FF8FFFD87408FE58FC2FFE1D" box="[853,900,440,466]" pageId="6" pageNumber="103">Bon</collectingMunicipality>
weir, U-dom
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,
<location id="8EAA8EB6FF8FFFD87389FE58FF45FE3A" LSID="urn:lsid:plazi:treatment:03DC697BFF8FFFD877CAFF3FFECDF8BE:8EAA8EB6FF8FFFD87389FE58FF45FE3A" country="Thailand" county="Sakaerat Environmental Research Station" latitude="14.497001" longLatPrecision="1" longitude="101.91542" municipality="Bon" name="Wang Nam Khiao District" pageId="6" pageNumber="103" stateProvince="Nakhon Ratchasima">Wang Nam Khiao District</location>
,
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<quantity id="4C8D7588FF8FFFD8750FFE3BFD37FE39" box="[594,668,475,502]" metricMagnitude="2" metricUnit="m" metricValue="4.72" pageId="6" pageNumber="103" unit="m" value="472.0">472 m</quantity>
a.s.l.
</elevation>
,
<date id="FFCBFEADFF8FFFD875B7FE3BFCCAFE3A" box="[746,865,475,501]" pageId="6" pageNumber="103" value="2014-02-22">
<collectingDate id="EF8F0745FF8FFFD875B7FE3BFCCAFE3A" box="[746,865,475,501]" pageId="6" pageNumber="103" value="2014-02-22">22.II.2014</collectingDate>
</date>
, leg.
<collectorName id="2680BDBBFF8FFFD874FFFE3CFBB9FE3A" box="[930,1042,475,502]" pageId="6" pageNumber="103">B. Suksai</collectorName>
,
<specimenCount id="9D7313E4FF8FFFD8737DFE3BFBC6FE3A" box="[1056,1133,475,501]" pageId="6" pageNumber="103" type="male">1 male</specimenCount>
(
<collectionCode id="ED6440A8FF8FFFD87322FE3BFB69FE3A" box="[1151,1218,475,501]" country="Thailand" httpUri="http://grbio.org/cool/pwjq-e3rs" name="Herbarium, Department of Biology, Khon Kaen University" pageId="6" pageNumber="103">KKU</collectionCode>
)
</materialsCitation>
;
<materialsCitation id="3B1DD230FF8FFFD87385FE3CFC80FDD6" ID-GBIF-Occurrence="3411799360" collectingDate="2018-03-29" collectionCode="KKU" collectorName="P. Chanteenok" country="Thailand" county="Sakaerat Environmental Research Station" elevation="472" latitude="14.497001" location="Sap Subdistrict" longLatPrecision="1" longitude="101.91542" municipality="Bon" pageId="6" pageNumber="103" specimenCount="1" specimenCount-female="1" stateProvince="Nakhon Ratchasima">
same locality except for,
<date id="FFCBFEADFF8FFFD877A0FE1FFED6FDD6" box="[253,381,511,537]" pageId="6" pageNumber="103" value="2018-03-29">
<collectingDate id="EF8F0745FF8FFFD877A0FE1FFED6FDD6" box="[253,381,511,537]" pageId="6" pageNumber="103" value="2018-03-29">29.III.2018</collectingDate>
</date>
, leg.
<collectorName id="2680BDBBFF8FFFD876E1FDE0FDCAFDD6" box="[444,609,511,538]" pageId="6" pageNumber="103">P. Chanteenok</collectorName>
,
<specimenCount id="9D7313E4FF8FFFD87530FE1FFD64FDD6" box="[621,719,511,537]" pageId="6" pageNumber="103" type="female">1 female</specimenCount>
(
<collectionCode id="ED6440A8FF8FFFD875BDFE1FFC88FDD6" box="[736,803,511,537]" country="Thailand" httpUri="http://grbio.org/cool/pwjq-e3rs" name="Herbarium, Department of Biology, Khon Kaen University" pageId="6" pageNumber="103">KKU</collectionCode>
)
</materialsCitation>
;
<materialsCitation id="3B1DD230FF8FFFD8746AFDE0FBB3FDF2" ID-GBIF-Occurrence="3411799345" collectingDate="2018-04-08" collectionCode="THNHM" collectorName="B. Suksai &amp; O. Pornsophon &amp; T. Jantaranakee &amp; S. Phengsalung" country="Thailand" county="Sakaerat Environmental Research Station" elevation="472" latitude="14.497001" location="Sap Subdistrict" longLatPrecision="1" longitude="101.91542" municipality="Bon" pageId="6" pageNumber="103" specimenCount="4" specimenCount-female="2" specimenCount-male="2" stateProvince="Nakhon Ratchasima">
same locality except for,
<date id="FFCBFEADFF8FFFD8730BFE1FFB6DFDD6" box="[1110,1222,511,537]" pageId="6" pageNumber="103" value="2018-04-08">
<collectingDate id="EF8F0745FF8FFFD8730BFE1FFB6DFDD6" box="[1110,1222,511,537]" pageId="6" pageNumber="103" value="2018-04-08">8.IV.2018</collectingDate>
</date>
, leg.
<collectorName id="2680BDBBFF8FFFD87258FDE0FADFFDD6" box="[1285,1396,511,538]" pageId="6" pageNumber="103">B. Suksai</collectorName>
,
<collectorName id="2680BDBBFF8FFFD872DCFE1FFE8BFDF2" pageId="6" pageNumber="103">O. Pornsophon</collectorName>
,
<collectorName id="2680BDBBFF8FFFD87671FDC4FE70FDF2" box="[300,475,547,574]" pageId="6" pageNumber="103">T. Jantaranakee</collectorName>
&amp;
<collectorName id="2680BDBBFF8FFFD8755CFDC3FD19FDF2" box="[513,690,547,573]" pageId="6" pageNumber="103">S. Phengsalung</collectorName>
,
<specimenCount id="9D7313E4FF8FFFD875E3FDC3FCB2FDF2" box="[702,793,547,573]" pageId="6" pageNumber="103" type="male">2 males</specimenCount>
,
<specimenCount id="9D7313E4FF8FFFD87478FDC3FC38FDF2" box="[805,915,547,573]" pageId="6" pageNumber="103" type="female">2 females</specimenCount>
(
<collectionCode id="ED6440A8FF8FFFD874FEFDC3FBBBFDF2" box="[931,1040,547,573]" pageId="6" pageNumber="103">THNHM</collectionCode>
)
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<materialsCitation id="3B1DD230FF8FFFD87379FDC3FCBDFD4A" ID-GBIF-Occurrence="3411799406" collectingDate="2006-01-04" collectionCode="UMC" collectorName="A. Vitheepradit &amp; R. W. Sites &amp; T. Prommi" country="Thailand" county="Ban Bang Klag Klang" elevation="17" latitude="8.874483" location="Takua Pa District" longLatPrecision="1" longitude="98.37798" municipality="Koag Kien Subdistrict" pageId="6" pageNumber="103" specimenCount="1" specimenCount-male="1" stateProvince="Phangnga">
<emphasis id="B901047FFF8FFFD87379FDC3FA88FDF2" bold="true" box="[1060,1315,547,573]" pageId="6" pageNumber="103">
<collectingRegion id="49B1168FFF8FFFD87379FDC3FAB4FDF2" box="[1060,1311,547,573]" country="Thailand" name="Phangnga" pageId="6" pageNumber="103">Phang Nga Province</collectingRegion>
:
</emphasis>
<collectingCounty id="62ABA0E1FF8FFFD87271FDC4FEB6FDAE" pageId="6" pageNumber="103">Ban Bang Klag Klang</collectingCounty>
,
<collectingMunicipality id="6BAE4217FF8FFFD87674FDA8FD8DFDAE" box="[297,550,583,610]" pageId="6" pageNumber="103">Koag Kien Subdistrict</collectingMunicipality>
,
<location id="8EAA8EB6FF8FFFD87577FDA7FD58FDAE" LSID="urn:lsid:plazi:treatment:03DC697BFF8FFFD877CAFF3FFECDF8BE:8EAA8EB6FF8FFFD87577FDA7FD58FDAE" box="[554,755,583,610]" country="Thailand" county="Ban Bang Klag Klang" latitude="8.874483" longLatPrecision="1" longitude="98.37798" municipality="Koag Kien Subdistrict" name="Takua Pa District" pageId="6" pageNumber="103" stateProvince="Phangnga">Takua Pa District</location>
,
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<geoCoordinate id="EE41BEAAFF8FFFD874DBFDA7FBB8FDAE" box="[902,1043,583,609]" degrees="98" direction="east" minutes="22.679" orientation="longitude" pageId="6" pageNumber="103" precision="1" value="98.37798">98°22.679'E</geoCoordinate>
,
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<quantity id="4C8D7588FF8FFFD8737DFDA7FBF1FDAD" box="[1056,1114,583,610]" metricMagnitude="1" metricUnit="m" metricValue="1.7" pageId="6" pageNumber="103" unit="m" value="17.0">17 m</quantity>
a.s.l.
</elevation>
,
<date id="FFCBFEADFF8FFFD873F9FDA7FAAFFDAE" box="[1188,1284,583,609]" pageId="6" pageNumber="103" value="2006-01-04">
<collectingDate id="EF8F0745FF8FFFD873F9FDA7FAAFFDAE" box="[1188,1284,583,609]" pageId="6" pageNumber="103" value="2006-01-04">4.I.2006</collectingDate>
</date>
, leg.
<collectorName id="2680BDBBFF8FFFD8721DFDA7FF5FFD4A" pageId="6" pageNumber="103">A. Vitheepradit</collectorName>
,
<collectorName id="2680BDBBFF8FFFD877A2FD8CFEDFFD4A" box="[255,372,619,646]" pageId="6" pageNumber="103">R.W. Sites</collectorName>
&amp;
<collectorName id="2680BDBBFF8FFFD876CAFD8CFDBAFD4A" box="[407,529,619,646]" pageId="6" pageNumber="103">T. Prommi</collectorName>
, L-881,
<specimenCount id="9D7313E4FF8FFFD87533FD8BFD12FD4A" box="[622,697,619,645]" pageId="6" pageNumber="103" type="male">1 male</specimenCount>
(
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)
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.
<materialsCitation id="3B1DD230FF8FFFD8747DFD8BFF46FD02" ID-GBIF-Occurrence="3411799347" collectingDate="2004-05-28" collectionCode="UMC" collectorName="A. Vitheepradit &amp; T. Prommi" country="Thailand" elevation="149" latitude="12.530167" location="Hua Hin District" longLatPrecision="1" longitude="99.53437" municipality="Ban Fah Pa Tarn" pageId="6" pageNumber="103" specimenCount="1" specimenCount-male="1" stateProvince="Prachuap Khiri Khan">
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<collectingRegion id="49B1168FFF8FFFD8747DFD8BFB30FD4A" box="[800,1179,619,645]" country="Thailand" name="Prachuap Khiri Khan" pageId="6" pageNumber="103">Prachuap Khiri Khan Province</collectingRegion>
:
</emphasis>
<collectingMunicipality id="6BAE4217FF8FFFD873FBFD8CFAC8FD49" box="[1190,1379,619,646]" pageId="6" pageNumber="103">Ban Fah Pa Tarn</collectingMunicipality>
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<location id="8EAA8EB6FF8FFFD87233FD8CFE8BFD66" LSID="urn:lsid:plazi:treatment:03DC697BFF8FFFD877CAFF3FFECDF8BE:8EAA8EB6FF8FFFD87233FD8CFE8BFD66" country="Thailand" latitude="12.530167" longLatPrecision="1" longitude="99.53437" municipality="Ban Fah Pa Tarn" name="Hua Hin District" pageId="6" pageNumber="103" stateProvince="Prachuap Khiri Khan">Hua Hin District</location>
,
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a.s.l.
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,
<date id="FFCBFEADFF8FFFD875ADFD6FFCCEFD66" box="[752,869,655,681]" pageId="6" pageNumber="103" value="2004-05-28">
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, leg.
<collectorName id="2680BDBBFF8FFFD874FCFD6FFBE5FD66" box="[929,1102,655,681]" pageId="6" pageNumber="103">A. Vitheepradit</collectorName>
&amp;
<collectorName id="2680BDBBFF8FFFD87329FD70FB44FD66" box="[1140,1263,655,682]" pageId="6" pageNumber="103">T. Prommi</collectorName>
, L-723,
<specimenCount id="9D7313E4FF8FFFD8720DFD6FFA37FD66" box="[1360,1436,655,681]" pageId="6" pageNumber="103" type="male">1 male</specimenCount>
(
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)
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;
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same locality except for,
<collectingCounty id="62ABA0E1FF8FFFD87547FD54FD5DFD02" box="[538,758,691,718]" pageId="6" pageNumber="103">Bue Sawan Stream</collectingCounty>
,
<collectingMunicipality id="6BAE4217FF8FFFD8745EFD54FBADFD02" box="[771,1030,691,718]" pageId="6" pageNumber="103">Huay Yang Subdistrict</collectingMunicipality>
,
<location id="8EAA8EB6FF8FFFD8734EFD53FB53FD02" LSID="urn:lsid:plazi:treatment:03DC697BFF8FFFD877CAFF3FFECDF8BE:8EAA8EB6FF8FFFD8734EFD53FB53FD02" box="[1043,1272,691,717]" country="Thailand" county="Bue Sawan Stream" latitude="11.674833" longLatPrecision="1" longitude="99.60066" municipality="Huay Yang Subdistrict" name="Thap Sakae District" pageId="6" pageNumber="103" stateProvince="Prachuap Khiri Khan">Thap Sakae District</location>
,
<geoCoordinate id="EE41BEAAFF8FFFD87259FD53FA37FD02" box="[1284,1436,691,717]" degrees="11" direction="north" minutes="40" orientation="latitude" pageId="6" pageNumber="103" precision="1" seconds="29.4" value="11.674833">11°40'29.4&quot;N</geoCoordinate>
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,
<elevation id="00583F5EFF8FFFD87666FD37FE15FD3E" box="[315,446,727,754]" metricMagnitude="2" metricUnit="m" metricValue="2.08" pageId="6" pageNumber="103" unit="m" value="208.0">
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a.s.l.
</elevation>
,
<date id="FFCBFEADFF8FFFD87696FD37FDEBFD3E" box="[459,576,727,753]" pageId="6" pageNumber="103" value="2017-05-23">
<collectingDate id="EF8F0745FF8FFFD87696FD37FDEBFD3E" box="[459,576,727,753]" pageId="6" pageNumber="103" value="2017-05-23">23.V.2017</collectingDate>
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, leg.
<collectorName id="2680BDBBFF8FFFD87521FD38FD4CFD3E" box="[636,743,727,754]" pageId="6" pageNumber="103">B. Suksai</collectorName>
&amp;
<collectorName id="2680BDBBFF8FFFD87456FD37FC2DFD3E" box="[779,902,727,753]" pageId="6" pageNumber="103">C. Yatfung</collectorName>
,
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(
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.
</paragraph>
</subSubSection>
<subSubSection id="C36F8BE6FF8FFFD8779AFD1BFDF7FA2A" pageId="6" pageNumber="103" type="diagnosis">
<paragraph id="8BCAD86DFF8FFFD8779AFD1BFC97FC06" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
<emphasis id="B901047FFF8FFFD8779AFD1BFEE9FCDA" bold="true" box="[199,322,763,789]" pageId="6" pageNumber="103">Diagnosis.</emphasis>
Male (
<figureCitation id="134EC4E8FF8FFFD876CCFD1BFE42FCDA" box="[401,489,763,789]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Fig. 1C</figureCitation>
): Size:
<quantity id="4C8D7588FF8FFFD87560FD1BFD6CFCD9" box="[573,711,763,790]" metricMagnitude="-3" metricUnit="m" metricValue="7.8999999999999995" metricValueMax="8.2" metricValueMin="7.6" pageId="6" pageNumber="103" unit="mm" value="7.8999999999999995" valueMax="8.2" valueMin="7.6">7.68.2 mm</quantity>
. Body form oval; apex of flagellomere VI darkly colored; elytral apices obliquely truncate with epipleural spines and serrations present (
<figureCitation id="134EC4E8FF8FFFD874E9FCFFFBBFFCF6" box="[948,1044,799,825]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Figs. 1C</figureCitation>
,
<figureCitation id="134EC4E8FF8FFFD8737CFCFFFBECFCF5" box="[1057,1095,799,826]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">5A</figureCitation>
); lateral marginal of pronotum and elytron black to brown; protrochanter apically with patch of thick setae on ventral surface (
<figureCitation id="134EC4E8FF8FFFD87398FCA3FA8BFC92" box="[1221,1312,835,861]" captionStart="FIGURE 4" captionStartId="7.[151,250,1575,1599]" captionTargetBox="[157,1429,181,1551]" captionTargetId="figure-18@7.[157,1429,181,1551]" captionTargetPageId="7" captionText="FIGURE 4. SEM photographs of protochanters in species of Dineutus and Porrorhynchus (males): (A) D. australis, patch of thick setae (arrow), scale bar = 100 μm; (B) D. sitesi, protrochanter without setae (arrow), scale bar = 1 mm; (C) D. spinosus, setae (arrow), scale bar = 100 μm; (D) D. unidentatus, setae (arrow), scale bar = 100 μm; (EF) P. marginatus, cluster setae (square and arrow): (E) scale bar = 500 μm; (F) scale bar = 100 μm." figureDoi="http://doi.org/10.5281/zenodo.5723335" httpUri="https://zenodo.org/record/5723335/files/figure.png" pageId="6" pageNumber="103">Fig. 4A</figureCitation>
); profemur without sub-apicoventral tooth; protibia wedge-shaped; venter black, epipleura brownish; aedeagus (
<figureCitation id="134EC4E8FF8FFFD87252FC87FA3FFC4D" box="[1295,1428,871,898]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">Figs. 5CD</figureCitation>
) with median lobe slightly shorter than parameres, swollen in basal 1/9, strongly narrowed after basal 1/9, apex with tip strongly pointed, weakly curved ventrally in lateral view.
</paragraph>
<paragraph id="8BCAD86DFF8FFFD8779AFC33FC29FBFA" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
Female (
<figureCitation id="134EC4E8FF8FFFD87675FC33FE2AFC22" box="[296,385,979,1005]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Fig. 1D</figureCitation>
): Similar to male except for size:
<quantity id="4C8D7588FF8FFFD875ABFC33FCD4FC21" box="[758,895,979,1006]" metricMagnitude="-3" metricUnit="m" metricValue="8.149999999999999" metricValueMax="8.2" metricValueMin="8.1" pageId="6" pageNumber="103" unit="mm" value="8.149999999999999" valueMax="8.2" valueMin="8.1">8.18.2 mm</quantity>
; elytral apices truncate without epipleural spines (
<figureCitation id="134EC4E8FF8FFFD877C2FC17FEA9FBDE" box="[159,258,1015,1041]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Figs. 1D</figureCitation>
,
<figureCitation id="134EC4E8FF8FFFD87650FC17FE9AFBDD" box="[269,305,1015,1042]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">5B</figureCitation>
), protrochanter apically without patch of thick setae on ventral surface; gonocoxae (
<figureCitation id="134EC4E8FF8FFFD87389FC17FA83FBDD" box="[1236,1320,1015,1042]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">Fig. 5E</figureCitation>
) elongate, lateral margin expanded and weakly rounded, apex nearly straight.
</paragraph>
<paragraph id="8BCAD86DFF8FFFD8779AFBDFFB39FA99" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
<emphasis id="B901047FFF8FFFD8779AFBDFFE66FB96" bold="true" box="[199,461,1087,1113]" pageId="6" pageNumber="103">Differential diagnosis.</emphasis>
<taxonomicName id="4C75A3EEFF8FFFD8768EFBA0FD0BFB96" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[467,672,1087,1113]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD8768EFBA0FD0BFB96" box="[467,672,1087,1113]" italics="true" pageId="6" pageNumber="103">Dineutus australis</emphasis>
</taxonomicName>
is closest to
<taxonomicName id="4C75A3EEFF8FFFD87470FBA0FC7AFB96" box="[813,977,1087,1114]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD87470FBA0FCEAFB96" box="[813,833,1088,1113]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD87413FBDFFC7AFB96" box="[846,977,1087,1113]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
, which also is found in
<collectingCountry id="F36298FDFF8FFFD8738BFBDFFA97FB96" box="[1238,1340,1087,1113]" name="Thailand" pageId="6" pageNumber="103">Thailand</collectingCountry>
, and can be distinguished from all other species of
<taxonomicName id="4C75A3EEFF8FFFD8753AFB84FD67FBB2" authorityName="MacLeay" authorityYear="1825" box="[615,716,1124,1149]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="genus">
<emphasis id="B901047FFF8FFFD8753AFB84FD67FBB2" box="[615,716,1124,1149]" italics="true" pageId="6" pageNumber="103">Dineutus</emphasis>
</taxonomicName>
in this country by the protrochanter of the male having a distinct patch of setae. Both sexes of
<taxonomicName id="4C75A3EEFF8FFFD876BDFB68FDCFFB6E" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[480,612,1159,1185]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD876BDFB68FDCFFB6E" box="[480,612,1159,1185]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
can be distinguished from those of
<taxonomicName id="4C75A3EEFF8FFFD874ABFB68FB37FB6E" box="[1014,1180,1159,1186]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD874ABFB68FBA1FB6E" box="[1014,1034,1160,1185]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD87344FB67FB37FB6E" box="[1049,1180,1159,1185]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
by the oval body form and larger size, whereas in
<taxonomicName id="4C75A3EEFF8FFFD8769FFB4CFDCDFB0A" box="[450,614,1195,1222]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD8769FFB4CFE7DFB0A" box="[450,470,1196,1221]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD876BEFB4BFDCDFB0A" box="[483,614,1195,1221]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
the body is narrowly oval (
<figureCitation id="134EC4E8FF8FFFD874CEFB4BFC42FB0A" box="[915,1001,1195,1221]" captionStart="FIGURE 1" captionStartId="3.[151,250,1894,1918]" captionTargetBox="[201,1387,181,1871]" captionTargetId="figure-18@3.[201,1387,181,1871]" captionTargetPageId="3" captionText="FIGURE 1. Habitus of Gyrinini and Dineutini species: (A) Gyrinus sericeolimbatus, dorsal view, female; (B) G. smaragdinus, dorsal view, male; (CD) Dineutus australis, dorsal view: (C) male; (D) female; (E) D. sitesi, dorsal view, male; (F) D. spinosus, dorsal view, male; (G) D. unidentatus, dorsal view, male; (H) Porrorhynchus marginatus, dorsal view, male; (I) D. sitesi, ventral view, male; (J) D. spinosus, ventral view, male. Scale bars = 3 mm." figureDoi="http://doi.org/10.5281/zenodo.5723329" httpUri="https://zenodo.org/record/5723329/files/figure.png" pageId="6" pageNumber="103">Fig. 1G</figureCitation>
) and smaller (6.0
<quantity id="4C8D7588FF8FFFD873E4FB4BFAB9FB09" box="[1209,1298,1195,1222]" metricMagnitude="-3" metricUnit="m" metricValue="6.9" pageId="6" pageNumber="103" unit="mm" value="6.9">6.9 mm</quantity>
). The elytral apices of males of
<taxonomicName id="4C75A3EEFF8FFFD8763BFB30FE41FB26" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[358,490,1231,1257]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD8763BFB30FE41FB26" box="[358,490,1231,1257]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
have weak epipleural spines, whereas in the males of
<taxonomicName id="4C75A3EEFF8FFFD8731FFB30FB4DFB26" box="[1090,1254,1231,1258]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD8731FFB30FBFDFB26" box="[1090,1110,1232,1257]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD8733EFB2FFB4DFB26" box="[1123,1254,1231,1257]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
these are longer and more developed (
<figureCitation id="134EC4E8FF8FFFD876DAFB13FE4BFAC1" box="[391,480,1267,1294]" captionStart="FIGURE 6" captionStartId="12.[151,250,1219,1243]" captionTargetBox="[177,1411,192,1185]" captionTargetId="figure-22@12.[159,1428,181,1195]" captionTargetPageId="12" captionText="FIGURE 6. Elytral apex, aedeagus and gonocoxae: (AD) D. unidentatus: (A) male elytral apex, scale bar = 2 mm; (BC) aedeagus, scale bar = 0.5 mm: (B) dorsal view; (C) lateral view; (D) gonocoxae, ventral view, scale bar = 0.5 mm; (EG) P. marginatus: (EF) aedeagus, scale bars = 1 mm: (E) dorsal view; (F) lateral view; (G) gonocoxae, ventral view, scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.5723339" httpUri="https://zenodo.org/record/5723339/files/figure.png" pageId="6" pageNumber="103">Fig. 6A</figureCitation>
). In dorsal view, the aedeagus of
<taxonomicName id="4C75A3EEFF8FFFD87412FB14FC79FAC2" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[847,978,1267,1293]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD87412FB14FC79FAC2" box="[847,978,1267,1293]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
is distinct from that of
<taxonomicName id="4C75A3EEFF8FFFD87389FB14FAD3FAC2" box="[1236,1400,1267,1294]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD87389FB14FB43FAC2" box="[1236,1256,1268,1293]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD873A8FB13FAD3FAC2" box="[1269,1400,1267,1293]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
, as the median lobe is very narrow and without a constricted apex (
<figureCitation id="134EC4E8FF8FFFD87402FAF7FC1CFAFD" box="[863,951,1303,1330]" captionStart="FIGURE 5" captionStartId="8.[151,250,1718,1742]" captionTargetBox="[194,1392,374,1695]" captionTargetId="figure-103@8.[165,1422,345,1695]" captionTargetPageId="8" captionText="FIGURE 5. Elytral apex, aedeagus and gonocoxae of species of Dineutus: (AE) D. australis: (AB) elytral apex, scale bar = 2 mm: (A) male; (B) female; (CD) aedeagus, scale bar = 0.5 mm: (C) dorsal view; (D) lateral view; (E) gonocoxae, ventral view, scale bar = 0.5 mm; (FI) D. sitesi: (F) male elytral apex, scale bar = 2 mm; (GH) aedeagus, scale bar = 1 mm: (G) dorsal view; (H) lateral view; (I) gonocoxae, ventral view, scale bar = 1 mm; (JM) D. spinosus: (J) male elytral apex, scale bar = 2 mm, (KL) aedeagus, scale bar = 0.5 mm: (K) dorsal view; (L) lateral view; (M) gonocoxae, ventral view, scale bar = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5723337" httpUri="https://zenodo.org/record/5723337/files/figure.png" pageId="6" pageNumber="103">Fig. 5C</figureCitation>
), in comparison to the broader, more parallel-sided median lobe of
<taxonomicName id="4C75A3EEFF8FFFD876F3FADCFDF8FA9A" box="[430,595,1339,1366]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD876F3FADCFE69FA9A" box="[430,450,1340,1365]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD8768DFADBFDF8FA9A" box="[464,595,1339,1365]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
, which is abruptly constricted at its apex (
<figureCitation id="134EC4E8FF8FFFD87370FADBFB2EFA99" box="[1069,1157,1339,1366]" captionStart="FIGURE 6" captionStartId="12.[151,250,1219,1243]" captionTargetBox="[177,1411,192,1185]" captionTargetId="figure-22@12.[159,1428,181,1195]" captionTargetPageId="12" captionText="FIGURE 6. Elytral apex, aedeagus and gonocoxae: (AD) D. unidentatus: (A) male elytral apex, scale bar = 2 mm; (BC) aedeagus, scale bar = 0.5 mm: (B) dorsal view; (C) lateral view; (D) gonocoxae, ventral view, scale bar = 0.5 mm; (EG) P. marginatus: (EF) aedeagus, scale bars = 1 mm: (E) dorsal view; (F) lateral view; (G) gonocoxae, ventral view, scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.5723339" httpUri="https://zenodo.org/record/5723339/files/figure.png" pageId="6" pageNumber="103">Fig. 6B</figureCitation>
).
</paragraph>
<paragraph id="8BCAD86DFF8FFFD8779AFABFFDF7FA2A" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
The females of
<taxonomicName id="4C75A3EEFF8FFFD87628FA80FE52FAB6" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[373,505,1375,1401]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD87628FA80FE52FAB6" box="[373,505,1375,1401]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
can be distinguished from those of
<taxonomicName id="4C75A3EEFF8FFFD874DBFA80FB80FAB6" box="[902,1067,1375,1402]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD874DBFA80FC31FAB6" box="[902,922,1376,1401]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD874F5FABFFB80FAB6" box="[936,1067,1375,1401]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
by the elytral apices lacking epipleural spines, which are presented in
<taxonomicName id="4C75A3EEFF8FFFD8751FFA64FD4CFA52" box="[578,743,1411,1438]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD8751FFA64FDFDFA52" box="[578,598,1412,1437]" italics="true" pageId="6" pageNumber="103">D</emphasis>
.
<emphasis id="B901047FFF8FFFD87539FA63FD4CFA52" box="[612,743,1411,1437]" italics="true" pageId="6" pageNumber="103">unidentatus</emphasis>
</taxonomicName>
. The reproductive tract of
<taxonomicName id="4C75A3EEFF8FFFD8734DFA64FB3FFA52" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[1040,1172,1411,1437]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD8734DFA64FB3FFA52" box="[1040,1172,1411,1437]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
has broader gonocoxae with the apex nearly straight, whereas in
<taxonomicName id="4C75A3EEFF8FFFD8753BFA48FCA0FA0E" box="[614,779,1447,1473]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD8753BFA48FCA0FA0E" box="[614,779,1447,1473]" italics="true" pageId="6" pageNumber="103">D. unidentatus</emphasis>
</taxonomicName>
the gonocoxae are more elongate, with the apex obliquely truncate and the lateral angle acuminate.
</paragraph>
</subSubSection>
<subSubSection id="C36F8BE6FF8FFFD8779AFA0FFA23F8C9" pageId="6" pageNumber="103" type="distribution">
<paragraph id="8BCAD86DFF8FFFD8779AFA0FFB08F956" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
<emphasis id="B901047FFF8FFFD8779AFA0FFEF2F9C6" bold="true" box="[199,345,1519,1545]" pageId="6" pageNumber="103">Distribution</emphasis>
. This species is widely distributed in the Oriental and Australian Regions. It has been recorded from
<collectingCountry id="F36298FDFF8FFFD87789F9F3FEB1F9E2" box="[212,282,1555,1581]" name="China" pageId="6" pageNumber="103">China</collectingCountry>
,
<collectingCountry id="F36298FDFF8FFFD87678F9F3FEDCF9E2" box="[293,375,1555,1581]" name="Taiwan" pageId="6" pageNumber="103">Taiwan</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD876D8F9F3FD98F9E1" author="Mazzoldi, P." box="[389,563,1555,1582]" pageId="6" pageNumber="103" refId="ref17864" refString="Mazzoldi, P. (1995) Gyrinidae: Catalogue of Chinese Gyrinidae (Coleoptera). In: J ach, M. A. &amp; Ji, L. (Eds.), Water Beetles of China. Vol. 1. Zoologisch-Botanische Gesellschaft in Osterreich and Wiener Coleopterologenverein, Vienna, pp. 155 - 172." type="book" year="1995">Mazzoldi 1995</bibRefCitation>
); the
<collectingCountry id="F36298FDFF8FFFD8752DF9F3FD45F9E2" box="[624,750,1555,1581]" name="Philippines" pageId="6" pageNumber="103">Philippines</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD875A0F9F3FCD1F9E2" author="Ochs" box="[765,890,1555,1581]" pageId="6" pageNumber="103" pagination="81 - 86" refId="ref18110" refString="Ochs, G. (1924) Gyrinidae of the Philippine Islands. The Philippine Journal of Science, 24, 81 - 86." type="journal article" year="1924">Ochs 1924</bibRefCitation>
;
<bibRefCitation id="EFE4A59CFF8FFFD874D8F9F3FBFCF9E1" author="Freitag, H. &amp; Jach, M. A. &amp; Wewalka, G." box="[901,1111,1555,1582]" pageId="6" pageNumber="103" pagination="177 - 213" refId="ref17141" refString="Freitag, H., Jach, M. A. &amp; Wewalka, G. (2016) Diversity of aquatic and riparian Coleoptera of the Philippines: checklist, state of knowledge, priorities for future research and conservation. Aquatic Insects, 37, 177 - 213. https: // doi. org / 10.1080 / 01650424.2016.1210814" type="journal article" year="2016">
Freitag
<emphasis id="B901047FFF8FFFD87481F9F4FBBFF9E2" box="[988,1044,1555,1581]" italics="true" pageId="6" pageNumber="103">et al.</emphasis>
2016
</bibRefCitation>
);
<collectingCountry id="F36298FDFF8FFFD87337F9F4FB01F9E1" box="[1130,1194,1556,1582]" name="Japan" pageId="6" pageNumber="103">Japan</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD873E5F9F3FAC3F9E2" author="Takizawa, M." box="[1208,1384,1555,1581]" pageId="6" pageNumber="103" pagination="13 - 21" refId="ref18935" refString="Takizawa, M. (1931) The Gyrinidae of Japan. Insecta Matsumurana, 6, 13 - 21." type="journal article" year="1931">Takizawa 1931</bibRefCitation>
);
<collectingCountry id="F36298FDFF8FFFD87221F9F4FF46F99E" name="Indonesia" pageId="6" pageNumber="103">Indonesia</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD877A7F9D7FEDDF99E" author="Ochs" box="[250,374,1591,1617]" pageId="6" pageNumber="103" pagination="171 - 199" refId="ref18316" refString="Ochs, G. (1949) A revision of the Australian Gyrinidae. Records of the Australian Museum, 22, 171 - 199. https: // doi. org / 10.3853 / j. 0067 - 1975.22.1949.599" type="journal article" year="1949">Ochs 1949</bibRefCitation>
,
<bibRefCitation id="EFE4A59CFF8FFFD876DDF9D7FE16F99D" author="Ochs" box="[384,445,1591,1618]" pageId="6" pageNumber="103" pagination="217 - 223" refId="ref18356" refString="Ochs, G. (1953) Die Sunda-Gyriniden des Museum Zoologicum Bogoriense (Col., Gyrinidae). Treubia, 22, 217 - 223." type="journal article" year="1953">1953</bibRefCitation>
):
<collectingRegion id="49B1168FFF8FFFD87692F9D8FDA8F99D" box="[463,515,1592,1618]" country="Indonesia" name="Jawa Timur" pageId="6" pageNumber="103">Java</collectingRegion>
,
<collectingRegion id="49B1168FFF8FFFD87550F9D7FD95F99E" box="[525,574,1591,1617]" country="Indonesia" name="Bali" pageId="6" pageNumber="103">Bali</collectingRegion>
, Lombok, Sumba,
<collectingRegion id="49B1168FFF8FFFD87452F9D7FCDCF99E" box="[783,887,1591,1617]" country="Indonesia" name="Sulawesi Utara" pageId="6" pageNumber="103">Sulawesi</collectingRegion>
, Buru; New
<collectingCountry id="F36298FDFF8FFFD8735CF9D7FBF9F99E" box="[1025,1106,1591,1617]" name="Guinea-Bissau" pageId="6" pageNumber="103">Guinea</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD87302F9D7FB70F99D" author="Ochs" box="[1119,1243,1591,1618]" pageId="6" pageNumber="103" pagination="87 - 154" refId="ref18384" refString="Ochs, G. (1955) Die Gyriniden-Fauna von Neuguinea nach dem derzeitigen Stand userer Kenntnisse (Coleoptera, Gyrinidae). Nova Guinea, 6, 87 - 154." type="journal article" year="1955">Ochs 1955</bibRefCitation>
),
<collectingCountry id="F36298FDFF8FFFD873B0F9D7FAFFF99E" box="[1261,1364,1591,1617]" name="Australia" pageId="6" pageNumber="103">Australia</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD8723CF9D7FF79F9BA" author="Ochs" pageId="6" pageNumber="103" pagination="171 - 199" refId="ref18316" refString="Ochs, G. (1949) A revision of the Australian Gyrinidae. Records of the Australian Museum, 22, 171 - 199. https: // doi. org / 10.3853 / j. 0067 - 1975.22.1949.599" type="journal article" year="1949">Ochs 1949</bibRefCitation>
;
<bibRefCitation id="EFE4A59CFF8FFFD87780F9BCFE7DF9BA" author="Watts, C. &amp; Hamon, H." box="[221,470,1627,1654]" pageId="6" pageNumber="103" refId="ref19037" refString="Watts, C. &amp; Hamon, H. (2010) Pictorial guide to the Australian whirligig beetles. Entomology Department, South Australian Museum. Available from: http: // citeseerx. ist. psu. edu / viewdoc / download? doi = 10.1.1.707.4839 &amp; rep = rep 1 &amp; type = pdf (accessed 5 January 2020)" type="url" year="2010">Watts &amp; Hamon 2010</bibRefCitation>
);
<collectingCountry id="F36298FDFF8FFFD876B4F9BCFD3CF9BA" box="[489,663,1627,1654]" name="New Caledonia" pageId="6" pageNumber="103">New Caledonia</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD875F8F9BBFCB1F9BA" author="Sato, M." box="[677,794,1627,1653]" pageId="6" pageNumber="103" pagination="1 - 8" refId="ref18736" refString="Sato, M. (1966) Some species of aquatic Coleoptera from New Caledonia. Bulletin of the Osaka Museum of Natural History, 19, 1 - 8." type="journal article" year="1966">Satô 1966</bibRefCitation>
;
<bibRefCitation id="EFE4A59CFF8FFFD8747BF9BBFC7FF9BA" author="Mazzoldi, P." box="[806,980,1627,1653]" pageId="6" pageNumber="103" pagination="31 - 43" refId="ref17925" refString="Mazzoldi, P. (2010) Gyrinidae (Coleoptera). In: Jach, M. A. &amp; Balke, M. (Eds.), Water beetles of New Caledonia. Part 1. Zoologisch-Botanische Gesellschaft, Section of Entomology, Vienna, pp. 31 - 43." type="book chapter" year="2010">Mazzoldi 2010</bibRefCitation>
); and the Pacific Islands:
<collectingCountry id="F36298FDFF8FFFD873ACF9BCFAE6F9B9" box="[1265,1357,1628,1654]" name="Vanuatu" pageId="6" pageNumber="103">Vanuatu</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD87206F9BBFEECF956" author="Watts, C. &amp; Hamon, H." pageId="6" pageNumber="103" refId="ref19037" refString="Watts, C. &amp; Hamon, H. (2010) Pictorial guide to the Australian whirligig beetles. Entomology Department, South Australian Museum. Available from: http: // citeseerx. ist. psu. edu / viewdoc / download? doi = 10.1.1.707.4839 &amp; rep = rep 1 &amp; type = pdf (accessed 5 January 2020)" type="url" year="2010">Watts &amp; Hamon 2010</bibRefCitation>
) and
<collectingCountry id="F36298FDFF8FFFD876D8F99FFE07F956" box="[389,428,1663,1689]" name="Fiji" pageId="6" pageNumber="103">Fiji</collectingCountry>
(
<bibRefCitation id="EFE4A59CFF8FFFD876E6F99FFD92F956" author="Ochs" box="[443,569,1663,1689]" pageId="6" pageNumber="103" pagination="171 - 199" refId="ref18316" refString="Ochs, G. (1949) A revision of the Australian Gyrinidae. Records of the Australian Museum, 22, 171 - 199. https: // doi. org / 10.3853 / j. 0067 - 1975.22.1949.599" type="journal article" year="1949">Ochs 1949</bibRefCitation>
). This is the first time it has been recorded in
<collectingCountry id="F36298FDFF8FFFD87365F99FFB34F956" box="[1080,1183,1663,1689]" name="Thailand" pageId="6" pageNumber="103">Thailand</collectingCountry>
.
</paragraph>
<paragraph id="8BCAD86DFF8FFFD8779AF943FA23F8C9" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
<emphasis id="B901047FFF8FFFD8779AF943FE81F972" bold="true" box="[199,298,1699,1725]" pageId="6" pageNumber="103">Habitat.</emphasis>
In
<collectingCountry id="F36298FDFF8FFFD87611F943FE1DF972" box="[332,438,1699,1725]" name="Australia" pageId="6" pageNumber="103">Australia</collectingCountry>
,
<taxonomicName id="4C75A3EEFF8FFFD8769DF944FDE8F972" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[448,579,1699,1725]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD8769DF944FDE8F972" box="[448,579,1699,1725]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
has been found in reservoirs, swamps, and pools in rivers and streams (
<bibRefCitation id="EFE4A59CFF8FFFD87206F943FEE2F92E" author="Watts, C. &amp; Hamon, H." pageId="6" pageNumber="103" refId="ref19037" refString="Watts, C. &amp; Hamon, H. (2010) Pictorial guide to the Australian whirligig beetles. Entomology Department, South Australian Museum. Available from: http: // citeseerx. ist. psu. edu / viewdoc / download? doi = 10.1.1.707.4839 &amp; rep = rep 1 &amp; type = pdf (accessed 5 January 2020)" type="url" year="2010">Watts &amp; Hamon 2010</bibRefCitation>
). In the present study, BS collected
<taxonomicName id="4C75A3EEFF8FFFD87589F928FCF3F92E" baseAuthorityName="Fabricius" baseAuthorityYear="1775" box="[724,856,1735,1761]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="australis">
<emphasis id="B901047FFF8FFFD87589F928FCF3F92E" box="[724,856,1735,1761]" italics="true" pageId="6" pageNumber="103">D. australis</emphasis>
</taxonomicName>
on the water surface of ponds in the forest (
<figureCitation id="134EC4E8FF8FFFD87262F927FA3FF92E" box="[1343,1428,1735,1761]" captionStart="FIGURE 7" captionStartId="13.[151,250,1836,1860]" captionTargetBox="[193,1395,181,1812]" captionTargetId="figure-18@13.[193,1395,181,1812]" captionTargetPageId="13" captionText="FIGURE 7. Habitats of species of Gyrinini and Dineutini: (AB) G. smaragdinus: (A) stream at Siriphum Waterfall, Doi Inthanon Natl. Park, Chiang Mai Province; (B) pond at Ban Buak Thoei, Chiang Mai Province; (C) D. australis, D. spinosus and D. unidentatus, pond at Sakaerat Environmental Research Station, Nakhon Ratchasima Province; (D) D. sitesi, Tum Din Stream, Thung Salaeng Luang Natl. Park, Phitsanulok Province; (E) D. spinosus, Huay Sae Stream, Ubon Ratchathani Province; (FG) D. unidentatus, ponds at Ban Kho, Khon Kaen Province; (H) P. marginatus, Lam Takong Stream, Nakhon Ratchasima Province." figureDoi="http://doi.org/10.5281/zenodo.5723341" httpUri="https://zenodo.org/record/5723341/files/figure.png" pageId="6" pageNumber="103">Fig. 7C</figureCitation>
) where it occurred among aquatic plants in shallow water. Additionally, it was found in shallow, stagnant streams.
</paragraph>
</subSubSection>
<subSubSection id="C36F8BE6FF8FFFD8779AF8EFFECDF8BE" pageId="6" pageNumber="103" type="discussion">
<paragraph id="8BCAD86DFF8FFFD8779AF8EFFECDF8BE" blockId="6.[151,1437,331,1905]" pageId="6" pageNumber="103">
<emphasis id="B901047FFF8FFFD8779AF8EFFEE7F8E6" bold="true" box="[199,332,1807,1833]" pageId="6" pageNumber="103">Discussion.</emphasis>
Within
<collectingCountry id="F36298FDFF8FFFD876F7F8EFFDBBF8E6" box="[426,528,1807,1833]" name="Thailand" pageId="6" pageNumber="103">Thailand</collectingCountry>
, it was found in the northern, northeastern, western, and southern regions (
<figureCitation id="134EC4E8FF8FFFD87232F8EFFF10F882" captionStart="FIGURE 8" captionStartId="14.[151,250,1179,1203]" captionTargetBox="[151,1436,181,1155]" captionTargetId="figure-22@14.[151,1436,181,1155]" captionTargetPageId="14" captionText="FIGURE 8. (AB) Distributions of species of Dineutini and Gyrinini in Thailand." figureDoi="http://doi.org/10.5281/zenodo.5723345" httpUri="https://zenodo.org/record/5723345/files/figure.png" pageId="6" pageNumber="103">Fig. 8A</figureCitation>
) and was collected at low elevations ranging from
<quantity id="4C8D7588FF8FFFD8745BF8D3FCD2F881" box="[774,889,1843,1870]" metricMagnitude="2" metricUnit="m" metricValue="2.445" metricValueMax="4.72" metricValueMin="0.16999999999999998" pageId="6" pageNumber="103" unit="m" value="244.5" valueMax="472.0" valueMin="17.0">17472 m</quantity>
a.s.l. It co-occurred with
<taxonomicName id="4C75A3EEFF8FFFD873FCF8D4FAECF882" box="[1185,1351,1843,1869]" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="unidentatus">
<emphasis id="B901047FFF8FFFD873FCF8D4FAECF882" box="[1185,1351,1843,1869]" italics="true" pageId="6" pageNumber="103">D. unidentatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C75A3EEFF8FFFD872DCF8D4FF5CF8BE" baseAuthorityName="Fabricius" baseAuthorityYear="1781" class="Insecta" family="Gyrinidae" genus="Dineutus" kingdom="Animalia" order="Coleoptera" pageId="6" pageNumber="103" phylum="Arthropoda" rank="species" species="spinosus">
<emphasis id="B901047FFF8FFFD872DCF8D4FF5CF8BE" italics="true" pageId="6" pageNumber="103">D. spinosus</emphasis>
</taxonomicName>
in ponds.
</paragraph>
</subSubSection>
</treatment>
</document>