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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="D57865DC4B875CC0AFEF9A5F45B38451" 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 fansipan J. Polhemus, Tran &amp; D. Polhemus 2009" docType="treatment" docVersion="2" 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="1679032168055" updateUser="ExternalLinkService">
<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:D57865DC4B875CC0AFEF9A5F45B38451" httpUri="http://treatment.plazi.org/id/D57865DC4B875CC0AFEF9A5F45B38451" lastPageNumber="69" pageId="0" pageNumber="69">
<subSubSection pageId="0" pageNumber="69" type="nomenclature">
<paragraph pageId="0" pageNumber="69">
<taxonomicName ID-CoL="6FLQ6" LSID="D57865DC-4B87-5CC0-AFEF-9A5F45B38451" authority="J. Polhemus, Tran &amp; D. Polhemus, 2009" authorityName="J. Polhemus, Tran &amp; D. Polhemus" authorityYear="2009" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus fansipan" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="fansipan">Eotrechus fansipan J. Polhemus, Tran &amp; D. Polhemus, 2009</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="description">
<paragraph pageId="0" pageNumber="69">
<figureCitation captionStart="Figure 25" captionStartId="F25" captionText="Figure 25. Distribution records of species of Eotrechus. Squares represent E. kalidasa species group; circles represent E. pingae species group; triangles represent species unassigned to a group." figureDoi="10.3897/dez.70.97117.figure25" httpUri="https://binary.pensoft.net/fig/826114" pageId="0" pageNumber="69">Fig. 25</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="reference_group">
<paragraph pageId="0" pageNumber="69">
<taxonomicName authorityName="J. Polhemus, Tran &amp; D. Polhemus" authorityYear="2009" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus fansipan" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="fansipan">Eotrechus fansipan</taxonomicName>
J. Polhemus, Tran &amp; D. Polhemus, 2009: 32-34, figs 1, 4-10, 17 (type locality: Lao Cai, 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="2011-04-22" collectorName="Dinh N. H." country="Vietnam" county="Sa Pa" location="Ho" municipality="Cat Cat" specimenCount="16" specimenCount-female="8" specimenCount-male="8" stateProvince="Lao Cai Province">
<collectingCountry name="Vietnam">Vietnam</collectingCountry>
•,
<specimenCount type="male">8 ♂♂</specimenCount>
,
<specimenCount type="female">8 ♀♀</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
,
<collectingMunicipality>Cat Cat</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:9C232D7E44B023606621BABA90B09BEF" country="Vietnam" county="Sa Pa" municipality="Cat Cat" name="Ho" stateProvince="Lao Cai Province">Ho</location>
stream (feeder stream of
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:3180DB3EE5B66A50140F7127FF868C00" country="Vietnam" county="Sa Pa" municipality="Cat Cat" 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.; DNH11.02; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2020-10-27" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Ho" municipality="Cat Cat" specimenCount="2" specimenCount-female="1" specimenCount-male="1" stateProvince="Lao Cai">
<specimenCount type="male">1 ♂</specimenCount>
,
<specimenCount type="female">1 ♀</specimenCount>
(apterous); same locality as preceding;
<collectingDate value="2020-10-27">27 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD20-23; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2011-04-22" collectorName="Dinh N. H." country="Vietnam" county="Sa Pa" location="Muong Hoa" municipality="Sin Chai" specimenCount="4" specimenCount-female="1" specimenCount-male="3" stateProvince="Lao Cai Province">
<specimenCount type="male">3 ♂♂</specimenCount>
,
<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:D57865DC4B875CC0AFEF9A5F45B38451:547B98F4AB53D4C7E1F1DE55938842E2" 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>
<materialsCitation collectingDate="2011-04-23" collectorName="Dinh N. H." country="Vietnam" county="Sa Pa" location="Nui Xe" municipality="Sa Pa town" specimenCount="1" specimenCount-male="1" stateProvince="Lao Cai Province">
<specimenCount type="male">1 ♂</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
, waterfall and stream by roadside from
<collectingMunicipality>Sa Pa town</collectingMunicipality>
to
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:09DA5CDB3E13269B2AA8B84DB2A6AD51" country="Vietnam" county="Sa Pa" municipality="Sa Pa town" name="Nui Xe" stateProvince="Lao Cai Province">Nui Xe</location>
, ca.
<quantity metricMagnitude="4" metricUnit="m" metricValue="1.3" unit="km" value="13.0">13 km</quantity>
from
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:4AAF55AB3172D13A244BA2D4E3A98C03" country="Vietnam" county="Sa Pa" municipality="Sa Pa town" name="Sa Pa town" stateProvince="Lao Cai Province">Sa Pa town</location>
;
<collectingDate value="2011-04-23">23 Apr. 2011</collectingDate>
;
<collectorName>Dinh N.H.</collectorName>
et al. leg.; DNH11.10; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2013-05-30" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Nui Xe" municipality="Sa Pa town" specimenCount="5" specimenCount-male="5" stateProvince="Lao Cai">
<specimenCount type="male">5 ♂♂</specimenCount>
(apterous); same locality as preceding;
<collectingDate value="2013-05-30">30 May 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD1320; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2013-10-25" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Nui Xe" municipality="Sa Pa town" specimenCount="1" specimenCount-male="1" stateProvince="Lao Cai">
<specimenCount type="male">1 ♂</specimenCount>
(apterous); same locality as preceding;
<collectingDate value="2013-10-25">25 Oct. 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
et al. leg.; TAD1358b; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2020-10-25" collectorName="Tran A. D., Nguyen V. V." country="Vietnam" county="Sa Pa" location="Nui Xe" municipality="Sa Pa town" specimenCount="5" specimenCount-female="4" specimenCount-male="1" stateProvince="Lao Cai">
<specimenCount type="male">1 ♂</specimenCount>
,
<specimenCount type="female">4 ♀♀</specimenCount>
(apterous); same locality as preceding;
<collectingDate value="2020-10-25">25 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
&amp;
<collectorName>Nguyen V.V.</collectorName>
leg.; TAD20-18; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2013-05-31" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" elevation="500" location="Nui Xe" municipality="Thac Bac" specimenCount="5" specimenCount-female="2" specimenCount-male="3" stateProvince="Lao Cai Province">
<specimenCount type="male">3 ♂♂</specimenCount>
,
<specimenCount type="female">2 ♀♀</specimenCount>
(apterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
, waterfall by roadside from
<collectingMunicipality>Thac Bac</collectingMunicipality>
waterfall to
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:9A8931EA182610560DE00E2AE49889BF" country="Vietnam" county="Sa Pa" municipality="Thac Bac" name="Nui Xe" stateProvince="Lao Cai Province">Nui Xe</location>
, ca.
<quantity metricMagnitude="2" metricUnit="m" metricValue="5.0" unit="m" value="500.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="5.0" unit="m" value="500.0">500 m</elevation>
</quantity>
from
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:86ACF1E18741E67AD7E9E904C2108424" country="Vietnam" county="Sa Pa" municipality="Thac Bac" name="Thac Bac" stateProvince="Lao Cai Province">Thac Bac</location>
waterfall;
<collectingDate value="2013-05-31">31 May 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg. TAD1321; ZVNU
</materialsCitation>
<specimenCount type="female">1 ♀</specimenCount>
(apterous),
<materialsCitation collectingDate="2013-05-31" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Nui Xe" municipality="Thac Bac" specimenCount="1" specimenCount-male="1" stateProvince="Lao Cai Province">
<specimenCount type="male">1 ♂</specimenCount>
(macropterous);
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
, waterfall by roadside from
<collectingMunicipality>Thac Bac</collectingMunicipality>
waterfall to
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:73ED1BC1FB910D37C9E74636D7321D2B" country="Vietnam" county="Sa Pa" municipality="Thac Bac" name="Nui Xe" stateProvince="Lao Cai Province">Nui Xe</location>
, ca.
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.0" unit="km" value="1.0">1 km</quantity>
from
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:FA5691C1CF5D2F2D1ED1EBFF0B380042" country="Vietnam" county="Sa Pa" municipality="Thac Bac" name="Thac Bac" stateProvince="Lao Cai Province">Thac Bac</location>
waterfall;
<collectingDate value="2013-05-31">31 May 2013</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
leg.; TAD1322; ZVNU
</materialsCitation>
<materialsCitation collectingDate="2013-10-27" collectorName="Tran A. D." country="Vietnam" county="Sa Pa" location="Sin Chai" municipality="Sin Chai" specimenCount="6" specimenCount-female="3" specimenCount-male="3" stateProvince="Lao Cai Province">
<specimenCount type="male">3 ♂♂</specimenCount>
,
<specimenCount type="female">3 ♀♀</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:D57865DC4B875CC0AFEF9A5F45B38451:12099788616D781EB419462A1B9965EC" 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="2020-10-26" collectorName="Tran A. D., Nguyen T. A. N." country="Vietnam" county="Sa Pa" location="Sin Chai" municipality="Muong Hoa" specimenCount="5" specimenCount-female="3" specimenCount-male="2" stateProvince="Lao Cai Province">
<specimenCount type="male">2 ♂♂</specimenCount>
,
<specimenCount type="female">3 ♀♀</specimenCount>
(apterous), 1 nymph;
<collectingRegion country="Vietnam" name="Lao Cai">Lao Cai Province</collectingRegion>
,
<collectingCounty>Sa Pa</collectingCounty>
,
<collectingMunicipality>Muong Hoa</collectingMunicipality>
stream, upstream of
<location LSID="urn:lsid:plazi:treatment:D57865DC4B875CC0AFEF9A5F45B38451:CB941548B353AF1540B7A896752FE935" country="Vietnam" county="Sa Pa" municipality="Muong Hoa" name="Sin Chai" stateProvince="Lao Cai Province">Sin Chai</location>
;
<collectingDate value="2020-10-26">26 Oct. 2020</collectingDate>
;
<collectorName>Tran A.D.</collectorName>
&amp;
<collectorName>Nguyen T.A.N.</collectorName>
leg.; TAD20-22; 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 7.66-8.50 (holotype 8.50), width 2.48-2.74 (holotype 2.74); macropterous male, length 9.80, width 2.56; apterous females, length 8.55-9.50, width 2.77-2.87; macropterous female, length 9.54-9.60. Dorsum mainly brown, venter mainly light-brown. Mesosternum ca. 3.2
<normalizedToken originalValue="×">x</normalizedToken>
(male) and 2.95
<normalizedToken originalValue="×">x</normalizedToken>
(female) length of metasternum. Male: fore femur incrassate, slightly constricted before apex, basal part with broad tubercle bearing patch of minute, dark setae, flexor side of femur with a row of ca. 10 long, stiff setae; fore tibia slightly curved in the middle, long, stiff setae scattered on extensor side and denser at distal part; abdominal sterna III-VI medially depressed, sternum VII broadly depressed, distinctly longer than two preceding sterna combined, posterior margin emarginated into a notch about two-fifths of sternum VII length. Male genitalia: segment VIII longer than sternum VII, posteroventral margin almost straight; pygophore with small lateral tubercle, ventral surface convex in lateral view; caudal projection of pygophore short, plate-like, with dense patch of long, soft setae on ventrolateral sides, apical margin almost straight; paramere small, ovoid; proctiger trilobed, posterolateral lobes small, posteroventral surface with dense patch of long, brush-like setae. Female: fore femur more slender than in male, femur without basal tubercle, with ca. 12 long, stiff setae along flexor side; fore tibia almost straight; abdomen, in lateral view, tapering towards apex; sternum VII ca. 1.1
<normalizedToken originalValue="×">x</normalizedToken>
length of two preceding sterna combined, not enclosing genitalia.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="remarks">
<paragraph pageId="0" pageNumber="69">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="69">
Four species,
<taxonomicName authorityName="J. Polhemus, Tran &amp; D. Polhemus" authorityYear="2009" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus fansipan" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="fansipan">
<emphasis italics="true" pageId="0" pageNumber="69">Eotrechus fansipan</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="E. pingae" pageId="0" pageNumber="69" rank="species" species="pingae">
<emphasis italics="true" pageId="0" pageNumber="69">E. pingae</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="E. luaae" pageId="0" pageNumber="69" rank="species" species="luaae">
<emphasis italics="true" pageId="0" pageNumber="69">E. luaae</emphasis>
</taxonomicName>
, and
<taxonomicName lsidName="E. elongatus" pageId="0" pageNumber="69" rank="species" species="elongatus">
<emphasis italics="true" pageId="0" pageNumber="69">E. elongatus</emphasis>
</taxonomicName>
are closely related to each other, by sharing similarities in the structure of the fore leg and genitalia of the male.
<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>
provided a comparison among three species,
<taxonomicName authorityName="J. Polhemus, Tran &amp; D. Polhemus" authorityYear="2009" class="Insecta" family="Gerridae" genus="Eotrechus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eotrechus fansipan" order="Hemiptera" pageId="0" pageNumber="69" phylum="Arthropoda" rank="species" species="fansipan">
<emphasis italics="true" pageId="0" pageNumber="69">Eotrechus fansipan</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="E. pingae" pageId="0" pageNumber="69" rank="species" species="pingae">
<emphasis italics="true" pageId="0" pageNumber="69">E. pingae</emphasis>
</taxonomicName>
, and
<taxonomicName lsidName="E. luaae" pageId="0" pageNumber="69" rank="species" species="luaae">
<emphasis italics="true" pageId="0" pageNumber="69">E. luaae</emphasis>
</taxonomicName>
. Herein, we provide further comparison, with the addition of
<taxonomicName lsidName="E. elongatus" pageId="0" pageNumber="69" rank="species" species="elongatus">
<emphasis italics="true" pageId="0" pageNumber="69">E. elongatus</emphasis>
</taxonomicName>
(Table
<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Comparative morphology of E. pingae, E. luaae, E. elongatus, and E. fansipan (modified from Polhemus et al. 2009)." httpUri="http://table.plazi.org/id/4E1B39FF8E6867597A08B617D0586E8D" pageId="0" pageNumber="69" tableUuid="4E1B39FF8E6867597A08B617D0586E8D">2</tableCitation>
).
</paragraph>
<caption ID-Table-UUID="4E1B39FF8E6867597A08B617D0586E8D" httpUri="http://table.plazi.org/id/4E1B39FF8E6867597A08B617D0586E8D" pageId="0" pageNumber="69" start="Table 2" startId="T2">
<paragraph pageId="0" pageNumber="69">
<emphasis bold="true" pageId="0" pageNumber="69">Table 2.</emphasis>
Comparative morphology of
<taxonomicName lsidName="E. pingae" pageId="0" pageNumber="69" rank="species" species="pingae">
<emphasis italics="true" pageId="0" pageNumber="69">E. pingae</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="E. luaae" pageId="0" pageNumber="69" rank="species" species="luaae">
<emphasis italics="true" pageId="0" pageNumber="69">E. luaae</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="E. elongatus" pageId="0" pageNumber="69" rank="species" species="elongatus">
<emphasis italics="true" pageId="0" pageNumber="69">E. elongatus</emphasis>
</taxonomicName>
, and
<taxonomicName lsidName="E. fansipan" pageId="0" pageNumber="69" rank="species" species="fansipan">
<emphasis italics="true" pageId="0" pageNumber="69">E. fansipan</emphasis>
</taxonomicName>
(modified from
<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>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="69">
<table pageId="0" pageNumber="69">
<tr pageId="0" pageNumber="69">
<th colspan="1" pageId="0" pageNumber="69" rowspan="1">Male</th>
<th colspan="1" pageId="0" pageNumber="69" rowspan="1">
<taxonomicName lsidName="E. pingae" pageId="0" pageNumber="69" rank="species" species="pingae">
<emphasis italics="true" pageId="0" pageNumber="69">E. pingae</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="69" rowspan="1">
<taxonomicName lsidName="E. luaae" pageId="0" pageNumber="69" rank="species" species="luaae">
<emphasis italics="true" pageId="0" pageNumber="69">E. luaae</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="69" rowspan="1">
<taxonomicName lsidName="E. elongatus" pageId="0" pageNumber="69" rank="species" species="elongatus">
<emphasis italics="true" pageId="0" pageNumber="69">E. elongatus</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="69" rowspan="1">
<taxonomicName lsidName="E. fansipan" pageId="0" pageNumber="69" rank="species" species="fansipan">
<emphasis italics="true" pageId="0" pageNumber="69">E. fansipan</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">Fore tibia</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">almost straight</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">almost straight</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">almost straight</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">flexor side curved at middle</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">Abdominal venter</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">median groove from sterna II-VII, narrow and deep</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">median groove from sterna III-VII less conspicuous</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">median groove not distinct, sternum VII broadly depressed</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">median groove from sterna III-VI less conspicuous, sternum VII broadly depressed</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">Posterior margin of segment VIII</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">without median process</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">with small acute median process</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">angular medially</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">straight, without median process</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="2">Proctiger</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterolateral lobes large</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterolateral lobes large</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">-posterolateral lobes small</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterolateral lobes small</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- without patch of long setae</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- with patch of long setae on posteroventral surface</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- with patch of long setae on posteroventral surface</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- with patch of long setae on posteroventral surface</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="4">Pygophore</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- short</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- long and slender</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- long and slender</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- medium length</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- lateral tubercles large</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- without lateral tubercles</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- lateral tubercles indistinct</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- lateral tubercles small</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterior plate short and broad</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterior plate narrow, tapering towards apex</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterior plate relatively narrow, tapering towards apex</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- posterior plate short and broad</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- without ventrolateral patches of setae</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventrolateral patches of setae less dense</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventrolateral dense patches of setae</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- with ventrolateral dense patches of setae</td>
</tr>
<tr pageId="0" pageNumber="69">
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">Pygophore in lateral view</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventral margin rounded</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventral margin broad and straight</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventral margin more angular</td>
<td colspan="1" pageId="0" pageNumber="69" rowspan="1">- ventral margin rounded</td>
</tr>
</table>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="69" type="distribution">
<paragraph pageId="0" pageNumber="69">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="69">
Vietnam: Lao Cai (
<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>
) (Fig.
<figureCitation captionStart="Figure 25" captionStartId="F25" captionText="Figure 25. Distribution records of species of Eotrechus. Squares represent E. kalidasa species group; circles represent E. pingae species group; triangles represent species unassigned to a group." figureDoi="10.3897/dez.70.97117.figure25" httpUri="https://binary.pensoft.net/fig/826114" pageId="0" pageNumber="69">25</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>