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<document ID-DOI="http://dx.doi.org/10.3897/dez.70.97117" ID-Pensoft-Pub="1860-1324-1-69" ID-Pensoft-UUID="CA0CBE818BFA5DFA80DBD42521D5DBE3" ID-ZooBank="99BBA4C8ED2048879952B61CC25309D4" ModsDocID="1860-1324-70-1-69" checkinTime="1679031804748" checkinUser="pensoft" docAuthor="Tran, Anh Duc, Zettel, Herbert &amp; Sites, Robert W." docDate="2023" docId="A5871157A4D25CF3B0C07CB82F87B7B0" docLanguage="en" docName="DeutEntomolZeit 70(1): 69-111" docOrigin="Deutsche Entomologische Zeitschrift 70 (1)" docPubDate="2023-03-16" docSource="http://dx.doi.org/10.3897/dez.70.97117" docTitle="Eotrechus vietnamensis Tran &amp; Yang 2006" docType="treatment" docVersion="1" id="CA0CBE818BFA5DFA80DBD42521D5DBE3" lastPageNumber="69" masterDocId="CA0CBE818BFA5DFA80DBD42521D5DBE3" masterDocTitle="Revision of the genus Eotrechus Kirkaldy (Hemiptera, Heteroptera, Gerridae), with descriptions of six new species" masterLastPageNumber="111" masterPageNumber="69" pageNumber="69" updateTime="1679031804748" updateUser="pensoft">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Revision of the genus Eotrechus Kirkaldy (Hemiptera, Heteroptera, Gerridae), with descriptions of six new species</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Tran, Anh Duc</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-9605-0739</mods:nameIdentifier>
<mods:affiliation>Faculty of Biology, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam</mods:affiliation>
<mods:nameIdentifier type="email">tran.anhduc@hus.edu.vn</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zettel, Herbert</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-7760-0472</mods:nameIdentifier>
<mods:affiliation>Herbert Zettel, 2 nd Zoological Department (Entomology), Natural History Museum Vienna, Burgring 7, 1010 Vienna, Austria</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sites, Robert W.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-3895-813X</mods:nameIdentifier>
<mods:affiliation>Enns Entomology Museum, University of Missouri, Columbia, MO 65211, USA</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Deutsche Entomologische Zeitschrift</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-03-16</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>70</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>69</mods:start>
<mods:end>111</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/dez.70.97117</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/dez.70.97117</mods:identifier>
<mods:identifier type="Pensoft-Pub">1860-1324-1-69</mods:identifier>
<mods:identifier type="ZooBank">99BBA4C8ED2048879952B61CC25309D4</mods:identifier>
<mods:identifier type="Pensoft-UUID">CA0CBE818BFA5DFA80DBD42521D5DBE3</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0" httpUri="http://treatment.plazi.org/id/A5871157A4D25CF3B0C07CB82F87B7B0" lastPageNumber="69" pageId="0" pageNumber="69">
<subSubSection pageId="0" pageNumber="69" type="nomenclature">
<paragraph pageId="0" pageNumber="69">
<taxonomicName ID-CoL="6FM29" LSID="A5871157-A4D2-5CF3-B0C0-7CB82F87B7B0" authority="Tran &amp; Yang, 2006" authorityName="Tran &amp; Yang" authorityYear="2006" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus vietnamensis" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="vietnamensis">Eotrechus vietnamensis Tran &amp; Yang, 2006</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="description">
<paragraph pageId="0" pageNumber="69">
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. In-situ photographs of Eotrechus. A. E. vietnamensis, apterous male, from Ha Giang Province, Vietnam; B. E. konkakinh sp. nov., apterous male, from Gia Lai Province, Vietnam." figureDoi="10.3897/dez.70.97117.figure1" httpUri="https://binary.pensoft.net/fig/826090" pageId="0" pageNumber="69">Figs 1A</figureCitation>
<figureCitation captionStart="Figure 26" captionStartId="F26" captionText="Figure 26. Distribution records of species of Eotrechus. Circles represent E. longipes species group; squares represent E. petraeus species group; stars represent E. vietnamensis species group." figureDoi="10.3897/dez.70.97117.figure26" httpUri="https://binary.pensoft.net/fig/826115" pageId="0" pageNumber="69">, 26</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="reference_group">
<paragraph pageId="0" pageNumber="69">
<taxonomicName authorityName="Tran &amp; Yang" authorityYear="2006" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus vietnamensis" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="vietnamensis">Eotrechus vietnamensis</taxonomicName>
Tran &amp; Yang, 2006: 12-14, figs 1-6, 26 (type locality: Tam Dao, Vinh Phuc, Vietnam).
</paragraph>
<paragraph pageId="0" pageNumber="69">
<taxonomicName authorityName="Tran &amp; Yang" authorityYear="2006" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus vietnamensis" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="vietnamensis">Eotrechus vietnamensis</taxonomicName>
:
<bibRefCitation author="Polhemus, JT" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="69" pagination="29 - 37" publicationUrl="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" refId="B12" refString="Polhemus, JT, Tran, AD, Polhemus, DA, 2009. The genus Eotrechus (Heteroptera: Gerridae) in Vietnam, with descriptions of two new species. The Raffles Bulletin of Zoology 57 (1): 29 - 37, https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" title="The genus Eotrechus (Heteroptera: Gerridae) in Vietnam, with descriptions of two new species." url="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" volume="57" year="2009">Polhemus et al. (2009</bibRefCitation>
: 37) (key, diagnosis);
<bibRefCitation author="Tran, AD" journalOrPublisher="Zootaxa" pageId="0" pageNumber="69" refId="B18" refString="Tran, AD, Phan, QL, Nguyen, XQ, 2014. Preliminary data on water bugs (Insecta: Hemiptera) in Xuan Son National Park, Phu Tho Province. VNU Journal of Science: Natural Sciences and Technology 30(3S): 21-27." title="Preliminary data on water bugs (Insecta: Hemiptera) in Xuan Son National Park, Phu Tho Province. VNU Journal of Science: Natural Sciences and Technology 30 (3 S): 21 - 27." year="2014">Tran et al. 2014</bibRefCitation>
: 26 (record Phu Tho, Vietnam).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="materials_examined">
<paragraph pageId="0" pageNumber="69">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="69">
<materialsCitation collectingDate="2013-10-27" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Sin Chai" municipality="Sin Chai" specimenCount="1" specimenCount-male="1" stateProvince="Lao Cai Province">
<collectingCountry name="Vietnam">Vietnam</collectingCountry>
<specimenCount type="male">1 ♂</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
,
<collectingMunicipality>Sin Chai</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:F45D6C6142672A2A7E033E0424205C23" country="Vietnam" county="Sa Pa" municipality="Sin Chai" name="Sin Chai" stateProvince="Lao Cai Province">Sin Chai</location>
stream, site 1;
<collectingDate value="2013-10-27">27 Oct. 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1363; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2011-04-22" collectorName="Dinh N. H." country="Vietnam" county="Sa Pa" location="Muong Hoa" municipality="Sin Chai" specimenCount="1" specimenCount-female="1" stateProvince="Lao Cai Province">
<specimenCount type="female">1 ♀</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
,
<collectingMunicipality>Sin Chai</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:E86B76C46B5A471600AD370A9EB9D718" country="Vietnam" county="Sa Pa" municipality="Sin Chai" name="Muong Hoa" stateProvince="Lao Cai Province">Muong Hoa</location>
stream;
<collectingDate value="2011-04-22">22 Apr. 2011</collectingDate>
;
<collectorName>Dinh N.H.</collectorName>
et al. leg.; DNH11.03; ZVNU
</materialsCitation>
<specimenCount type="male">11 ♂♂</specimenCount>
,
<specimenCount type="female">11 ♀♀</specimenCount>
(apterous),
<materialsCitation collectingDate="2014-05-09" collectorName="Tran A. D." country="Vietnam" county="Vi Xuyen" location="Da" municipality="Xin Chai" specimenCount="1" specimenCount-male="1" stateProvince="Ha Giang Province">
<specimenCount type="male">1 ♂</specimenCount>
(macropterous);
<collectingRegion country="Vietnam" name="Ha Giang">Ha Giang Province</collectingRegion>
,
<collectingCounty>Vi Xuyen</collectingCounty>
,
<collectingMunicipality>Xin Chai</collectingMunicipality>
commune,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:4C7CA828416D8B745396D148C43A461B" country="Vietnam" county="Vi Xuyen" municipality="Xin Chai" name="Da" stateProvince="Ha Giang Province">Da</location>
stream by the road from
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:CFC3FA51096332EA26D1A4EF0A3711E5" country="Vietnam" county="Vi Xuyen" municipality="Xin Chai" name="Thanh Thuy" stateProvince="Ha Giang Province">Thanh Thuy</location>
to
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:A34E52681D3E9F30CEA08525395A520F" country="Vietnam" county="Vi Xuyen" municipality="Xin Chai" name="Lao Chai" stateProvince="Ha Giang Province">Lao Chai</location>
;
<collectingDate value="2014-05-09">09 May 2014</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1405; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2014-05-10" collectorName="Tran A. D." country="Vietnam" county="Hoang Su Phi" location="Coc Pai" municipality="Nam Ty" specimenCount="6" specimenCount-female="3" specimenCount-male="3" stateProvince="Ha Giang Province">
<specimenCount type="male">3 ♂♂</specimenCount>
,
<specimenCount type="female">3 ♀♀</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Ha Giang">Ha Giang Province</collectingRegion>
,
<collectingCounty>Hoang Su Phi</collectingCounty>
,
<collectingMunicipality>Nam Ty</collectingMunicipality>
commune, bridge at km 34 road 177, waterfall &amp; stream, ca.
<quantity metricMagnitude="4" metricUnit="m" metricValue="6.5" unit="km" value="65.0">65km</quantity>
to
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:6C4411B1F4D7DB40CEC0E5D9809A17E7" country="Vietnam" county="Hoang Su Phi" municipality="Nam Ty" name="Coc Pai" stateProvince="Ha Giang Province">Coc Pai</location>
;
<collectingDate value="2014-05-10">10 May 2014</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1411; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2014-05-11" collectorName="Tran A. D." country="Vietnam" county="Xin Man" location="Thac Tien - Deo Gio" municipality="Nam Dan" specimenCount="3" specimenCount-female="1" specimenCount-male="2" stateProvince="Ha Giang Province">
<specimenCount type="male">2 ♂♂</specimenCount>
,
<specimenCount type="female">1 ♀</specimenCount>
(apterous), 1 nymph;
<collectingRegion country="Vietnam" name="Ha Giang">Ha Giang Province</collectingRegion>
,
<collectingCounty>Xin Man</collectingCounty>
,
<collectingMunicipality>Nam Dan</collectingMunicipality>
commune,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:35D81061A24F0ECD96567C5FC37A51FA" country="Vietnam" county="Xin Man" municipality="Nam Dan" name="Thac Tien - Deo Gio" stateProvince="Ha Giang Province">Thac Tien - Deo Gio</location>
, waterfall &amp; stream;
<collectingDate value="2014-05-11">11 May 2014</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1414; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2020-10-28" collectorName="Tran A. D." country="Vietnam" county="Phia Oac - Phia Den National Park" location="Road" municipality="Road" specimenCount="2" specimenCount-male="2" stateProvince="Cao Bang Province">
<specimenCount type="male">2 ♂♂</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Cao Bang">Cao Bang Province</collectingRegion>
,
<collectingCounty>Phia Oac - Phia Den National Park</collectingCounty>
, connecting road from
<collectingMunicipality>Road</collectingMunicipality>
#212 to
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:13BB1554C8A60D1FE2391C6CD211CB76" country="Vietnam" county="Phia Oac - Phia Den National Park" municipality="Road" name="Road" stateProvince="Cao Bang Province">Road</location>
#34, upstream of fish farm;
<collectingDate value="2020-10-28">28 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD20-27; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2020-10-30" collectorName="Tran A. D." country="Vietnam" county="Phia Oac - Phia Den National Park" location="Na Ban" municipality="Road" specimenCount="15" specimenCount-female="9" specimenCount-male="6" stateProvince="Cao Bang Province">
<specimenCount type="male">6 ♂♂</specimenCount>
,
<specimenCount type="female">9 ♀♀</specimenCount>
(apterous), 3 nymphs;
<collectingRegion country="Vietnam" name="Cao Bang">Cao Bang Province</collectingRegion>
,
<collectingCounty>Phia Oac - Phia Den National Park</collectingCounty>
, km 3
<collectingMunicipality>Road</collectingMunicipality>
#212, 25 km to
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:9D28A5360292695933D1B15BB010EC6A" country="Vietnam" county="Phia Oac - Phia Den National Park" municipality="Road" name="Na Ban" stateProvince="Cao Bang Province">Na Ban</location>
;
<collectingDate value="2020-10-30">30 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD20-30; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2020-10-30" collectorName="Tran A. D." country="Vietnam" county="Phia Oac - Phia Den National Park" location="Na Ban" municipality="Road" specimenCount="2" specimenCount-male="2" stateProvince="Cao Bang Province">
<specimenCount type="male">2 ♂♂</specimenCount>
(apterous), 2 nymphs;
<collectingRegion country="Vietnam" name="Cao Bang">Cao Bang Province</collectingRegion>
,
<collectingCounty>Phia Oac - Phia Den National Park</collectingCounty>
, km 6
<collectingMunicipality>Road</collectingMunicipality>
#212, 22 km to
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:454F0CAFCB3DC65041CFEA7AF907EE8E" country="Vietnam" county="Phia Oac - Phia Den National Park" municipality="Road" name="Na Ban" stateProvince="Cao Bang Province">Na Ban</location>
;
<collectingDate value="2020-10-30">30 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD20-32; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2013-06-06" collectorName="Tran A. D." country="Vietnam" county="Xuan Son National Park" location="Tan Ong" municipality="Kim Thuong" specimenCount="4" specimenCount-female="2" specimenCount-male="2" stateProvince="Phu Tho Province">
<specimenCount type="male">2 ♂♂</specimenCount>
,
<specimenCount type="female">2 ♀♀</specimenCount>
(apterous), 4 nymphs;
<collectingRegion country="Vietnam" name="Phu Tho">Phu Tho Province</collectingRegion>
,
<collectingCounty>Xuan Son National Park</collectingCounty>
,
<collectingMunicipality>Kim Thuong</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:B0294B59181A9572CE800414A984C4C3" country="Vietnam" county="Xuan Son National Park" municipality="Kim Thuong" name="Tan Ong" stateProvince="Phu Tho Province">Tan Ong</location>
stream, site 1, at
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:05F21900F82EEA235DB8A9100A14929B" country="Vietnam" county="Xuan Son National Park" municipality="Kim Thuong" name="Chin Tang" stateProvince="Phu Tho Province">Chin Tang</location>
waterfall;
<collectingDate value="2013-06-06">6 Jun. 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1334; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2010-06-11" collectorName="Tran A. D." country="Vietnam" elevation="600" location="Ba Vi National Park" specimenCount="5" specimenCount-female="2" specimenCount-male="3" stateProvince="Hanoi">
<specimenCount type="male">3 ♂♂</specimenCount>
,
<specimenCount type="female">2 ♀♀</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Ha Noi">Hanoi</collectingRegion>
,
<location LSID="urn:lsid:plazi:treatment:A5871157A4D25CF3B0C07CB82F87B7B0:8B031F549718CE5B440843A7FFA14E46" country="Vietnam" name="Ba Vi National Park" stateProvince="Hanoi">Ba Vi National Park</location>
, small creek by main road to summit, ca.
<quantity metricMagnitude="3" metricUnit="m" metricValue="9.5" unit="km" value="9.5">9.5km</quantity>
from park head quarter; ca.
<elevation metricMagnitude="2" metricUnit="m" metricValue="6.0" unit="m" value="600.0">
<quantity metricMagnitude="2" metricUnit="m" metricValue="6.0" unit="m" value="600.0">600 m</quantity>
asl
</elevation>
.;
<collectingDate value="2010-06-11">11 Jun. 2010</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD1014; ZVNU
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="diagnosis">
<paragraph pageId="0" pageNumber="69">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="69">
Size: apterous males, length 5.50-5.90 (holotype 5.90), width 1.85-2.07 (holotype 1.97); apterous females, length 6.30-7.00, width 2.22-2.39; macropterous females, length 7.20-7.80, width 2.20-2.44. Dorsum covered with silvery or greenish pubescence, background colour brown with yellowish markings. Mesosternum 4.4-5.3
<normalizedToken originalValue="×">x</normalizedToken>
length of metasternum, posterior margin of metasternum with a median fringe of closely-set, black setae. Male: fore femur simple, distal part slightly constricted; abdominal venter with patch of long, yellow, soft setae on mediosternites II-VI; sternum VII more than twice as long as two preceding sterna combined; posterior margin of sternum VII with a deep, rectangular notch. Male genitalia: pygophore broadly suboval, with a pair of flat, posterolateral projections, projection with slightly triangular apex pointing laterad. Female: flexor side of fore femur with 4-5 stiff setae at basal part; sternum VII ca. 1.2
<normalizedToken originalValue="×">x</normalizedToken>
length of two preceding sterna combined; genitalia visible in lateral view.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="distribution">
<paragraph pageId="0" pageNumber="69">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="69">
Vietnam (northern provinces): Vinh Phuc, Lai Chau, Dien Bien, Lao Cai, Phu Tho, Hanoi (Ba Vi) (
<bibRefCitation author="Tran, AD" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="69" pagination="11 - 20" publicationUrl="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/54rbz011-020.pdf" refId="B16" refString="Tran, AD, Yang, CM, 2006. New species of the water strider genera Eotrechus Kirkaldy and Rhyacobates Esaki (Heteroptera: Gerridae) from Vietnam. The Raffles Bulletin of Zoology 54 (1): 11 - 20, https://lkcnhm.nus.edu.sg/app/uploads/2017/06/54rbz011-020.pdf" title="New species of the water strider genera Eotrechus Kirkaldy and Rhyacobates Esaki (Heteroptera: Gerridae) from Vietnam." url="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/54rbz011-020.pdf" volume="54" year="2006">Tran and Yang 2006</bibRefCitation>
;
<bibRefCitation author="Polhemus, JT" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="69" pagination="29 - 37" publicationUrl="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" refId="B12" refString="Polhemus, JT, Tran, AD, Polhemus, DA, 2009. The genus Eotrechus (Heteroptera: Gerridae) in Vietnam, with descriptions of two new species. The Raffles Bulletin of Zoology 57 (1): 29 - 37, https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" title="The genus Eotrechus (Heteroptera: Gerridae) in Vietnam, with descriptions of two new species." url="https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz029-037.pdf" volume="57" year="2009">Polhemus et al. 2009</bibRefCitation>
;
<bibRefCitation author="Tran, AD" journalOrPublisher="Zootaxa" pageId="0" pageNumber="69" refId="B18" refString="Tran, AD, Phan, QL, Nguyen, XQ, 2014. Preliminary data on water bugs (Insecta: Hemiptera) in Xuan Son National Park, Phu Tho Province. VNU Journal of Science: Natural Sciences and Technology 30(3S): 21-27." title="Preliminary data on water bugs (Insecta: Hemiptera) in Xuan Son National Park, Phu Tho Province. VNU Journal of Science: Natural Sciences and Technology 30 (3 S): 21 - 27." year="2014">Tran et al. 2014</bibRefCitation>
); Ha Giang, Cao Bang (new records) (Fig.
<figureCitation captionStart="Figure 26" captionStartId="F26" captionText="Figure 26. Distribution records of species of Eotrechus. Circles represent E. longipes species group; squares represent E. petraeus species group; stars represent E. vietnamensis species group." figureDoi="10.3897/dez.70.97117.figure26" httpUri="https://binary.pensoft.net/fig/826115" pageId="0" pageNumber="69">26</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>