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144 lines
14 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.768.24423" ID-PMC="PMC6019434" ID-Pensoft-Pub="1313-2970-768-113" ID-Pensoft-UUID="CB01CA30FFB4F96DFFA2FF86FFAEFFB6" ID-PubMed="29955215" ID-Zenodo-Dep="1298776" ID-ZooBank="399BCC3E9D6F4231870E05C79B9FD4B0" ModsDocID="1313-2970-768-113" checkinTime="1529468775230" checkinUser="pensoft" docAuthor="Giron, Jennifer C. & Short, Andrew Edward Z." docDate="2018" docId="154AF78180EE382D27ACF6D32C74D38D" docLanguage="en" docName="ZooKeys 768: 113-158" docOrigin="ZooKeys 768" docPubDate="2018-06-19" docSource="http://dx.doi.org/10.3897/zookeys.768.24423" docTitle="Crucisternum escalera Girón & Short 2018, sp. n." docType="treatment" docUuid="8C7098E9-13C8-4EEE-88FA-C548CEB1BA23" docUuidSource="ZooBank" docVersion="6" id="CB01CA30FFB4F96DFFA2FF86FFAEFFB6" lastPageNumber="117" masterDocId="CB01CA30FFB4F96DFFA2FF86FFAEFFB6" masterDocTitle="Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)" masterLastPageNumber="158" masterPageNumber="113" pageNumber="116" updateTime="1668165917053" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Giron, Jennifer C.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-0851-6883</mods:nameIdentifier>
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<mods:affiliation>Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA</mods:affiliation>
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<mods:nameIdentifier type="email">entiminae@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Short, Andrew Edward Z.</mods:namePart>
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<mods:affiliation>Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2018</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2018-06-19</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>768</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>113</mods:start>
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<mods:end>158</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.768.24423</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.768.24423</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-768-113</mods:identifier>
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<mods:identifier type="ZooBank">399BCC3E9D6F4231870E05C79B9FD4B0</mods:identifier>
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<mods:identifier type="Pensoft-UUID">CB01CA30FFB4F96DFFA2FF86FFAEFFB6</mods:identifier>
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<mods:identifier type="Zenodo-Dep">1298776</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="146002408" LSID="urn:lsid:zoobank.org:act:8C7098E9-13C8-4EEE-88FA-C548CEB1BA23" httpUri="http://treatment.plazi.org/id/154AF78180EE382D27ACF6D32C74D38D" lastPageId="4" lastPageNumber="117" pageId="3" pageNumber="116">
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<subSubSection pageId="3" pageNumber="116" type="nomenclature">
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<paragraph pageId="3" pageNumber="116">
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<taxonomicName LSID="http://zoobank.org/8C7098E9-13C8-4EEE-88FA-C548CEB1BA23" authority="Girón & Short, 2018" authorityName="Girón & Short" authorityYear="2018" class="Insecta" family="Hydrophilidae" genus="Crucisternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Crucisternum escalera" order="Coleoptera" pageId="3" pageNumber="116" phylum="Arthropoda" rank="species" species="escalera" status="sp. n.">Crucisternum escalera</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="116">sp. n.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus of Crucisternum spp.: A-D Crucisternum escalera: A dorsal view B lateral view C ventral view D head E-H Crucisternum queneyi: E dorsal view F lateral view G ventral view H head. Scale bars: 1 mm." figureDoi="10.3897/zookeys.768.24423.figure1" httpUri="https://binary.pensoft.net/fig/211211" pageId="3" pageNumber="116">Figs 1A-D</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Aedeagus of Crucisternum spp.: A-B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E-F Crucisternum xingu: E colln 6 F colln 23 G-H Cuscisternum sinuatus: G colln 23 H BR 18 - 0302 - 04 A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm." figureDoi="10.3897/zookeys.768.24423.figure6" httpUri="https://binary.pensoft.net/fig/211216" pageId="3" pageNumber="116">; 6I</figureCitation>
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Distribution of Crucisternum species." figureDoi="10.3897/zookeys.768.24423.figure7" httpUri="https://binary.pensoft.net/fig/211218" pageId="3" pageNumber="116">; 7</figureCitation>
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Habitat of Crucisternum spp. A-B Habitat for C. ouboteri Suriname, Raleighvallen, collecting event SR 12 - 0727 - 03 A C Type locality and habitat for C. ouboteri, Suriname, Brownsberg Nature Park, collecting event SR 12 - 0804 - 01 A D Type locality and habitat for C. vanessae, Suriname, Tafelberg Summit, Caiman Creek, collecting event SR 13 - 0819 - 05 D E-F Type locality and habitat for C. escalera, Venezuela, Bolivar State, along La Escalera, collecting event AS- 08 - 058." figureDoi="10.3897/zookeys.768.24423.figure8" httpUri="https://binary.pensoft.net/fig/211219" pageId="3" pageNumber="116">; 8E, F</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="type material">
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<paragraph pageId="4" pageNumber="117">
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<pageBreakToken pageId="4" pageNumber="117" start="start">Type</pageBreakToken>
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material examined.
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</paragraph>
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<paragraph pageId="4" pageNumber="117">
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<emphasis bold="true" pageId="4" pageNumber="117">Holotype (male)</emphasis>
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: "
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<emphasis bold="true" pageId="4" pageNumber="117">VENEZUELA</emphasis>
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:
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<normalizedToken originalValue="Bolívar">Bolivar</normalizedToken>
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State/
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<geoCoordinate degrees="6" direction="north" minutes="2" orientation="latitude" precision="1" seconds="10.5" value="6.03625">6°2'10.5"N</geoCoordinate>
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,
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<geoCoordinate degrees="61" direction="west" minutes="23" orientation="longitude" precision="1" seconds="57.8" value="-61.39939">61°23'57.8"W</geoCoordinate>
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, 630 m/ Along La Escalera; 31.vii.2008/ leg. A. Short, M.
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<normalizedToken originalValue="García">Garcia</normalizedToken>
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, L. Joly/ AS-08-058; rocky stream" // "Barcode/ SM00828756/ KUNHM-ENT" (MIZA).
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<emphasis bold="true" pageId="4" pageNumber="117">Paratypes (2)</emphasis>
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: Same data as holotype (SEMC, 2).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="differential diagnosis">
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<paragraph pageId="4" pageNumber="117">Differential diagnosis.</paragraph>
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<paragraph pageId="4" pageNumber="117">
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<taxonomicName authorityName="Girón & Short" authorityYear="2018" class="Insecta" family="Hydrophilidae" genus="Crucisternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Crucisternum escalera" order="Coleoptera" pageId="4" pageNumber="117" phylum="Arthropoda" rank="species" species="escalera">
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<emphasis italics="true" pageId="4" pageNumber="117">Crucisternum escalera</emphasis>
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</taxonomicName>
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is very similar to
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<taxonomicName lsidName="C. sinuatus" pageId="4" pageNumber="117" rank="species" species="sinuatus">
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<emphasis italics="true" pageId="4" pageNumber="117">C. sinuatus</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="C. xingu" pageId="4" pageNumber="117" rank="species" species="xingu">
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<emphasis italics="true" pageId="4" pageNumber="117">C. xingu</emphasis>
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</taxonomicName>
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in the shallowness of the punctation and the uniform coloration along the body. It shares with
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<taxonomicName lsidName="C. sinuatus" pageId="4" pageNumber="117" rank="species" species="sinuatus">
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<emphasis italics="true" pageId="4" pageNumber="117">C. sinuatus</emphasis>
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</taxonomicName>
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the shape of the median lobe (constricted at midlength, continuing as a narrow and roundly pointed bar, see Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Aedeagus of Crucisternum spp.: A-B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E-F Crucisternum xingu: E colln 6 F colln 23 G-H Cuscisternum sinuatus: G colln 23 H BR 18 - 0302 - 04 A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm." figureDoi="10.3897/zookeys.768.24423.figure6" httpUri="https://binary.pensoft.net/fig/211216" pageId="4" pageNumber="117">6 G-I</figureCitation>
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), but can be distinguished from it by the outer margins of the parameres, which are widely curved, to at most slightly sinuate (see Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Aedeagus of Crucisternum spp.: A-B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E-F Crucisternum xingu: E colln 6 F colln 23 G-H Cuscisternum sinuatus: G colln 23 H BR 18 - 0302 - 04 A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm." figureDoi="10.3897/zookeys.768.24423.figure6" httpUri="https://binary.pensoft.net/fig/211216" pageId="4" pageNumber="117">6I</figureCitation>
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; as opposed to strongly constricted near midlength, Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Aedeagus of Crucisternum spp.: A-B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E-F Crucisternum xingu: E colln 6 F colln 23 G-H Cuscisternum sinuatus: G colln 23 H BR 18 - 0302 - 04 A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm." figureDoi="10.3897/zookeys.768.24423.figure6" httpUri="https://binary.pensoft.net/fig/211216" pageId="4" pageNumber="117">6G, H</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="description">
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<paragraph pageId="4" pageNumber="117">Description.</paragraph>
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<paragraph pageId="4" pageNumber="117">
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Body length 2.1-2.2 mm, width 1.1-1.2 mm. General coloration uniformly orange brown (Fig.
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus of Crucisternum spp.: A-D Crucisternum escalera: A dorsal view B lateral view C ventral view D head E-H Crucisternum queneyi: E dorsal view F lateral view G ventral view H head. Scale bars: 1 mm." figureDoi="10.3897/zookeys.768.24423.figure1" httpUri="https://binary.pensoft.net/fig/211211" pageId="4" pageNumber="117">1 A-D</figureCitation>
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). Elytra with punctures shallowly marked. Aedeagus (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Aedeagus of Crucisternum spp.: A-B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E-F Crucisternum xingu: E colln 6 F colln 23 G-H Cuscisternum sinuatus: G colln 23 H BR 18 - 0302 - 04 A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm." figureDoi="10.3897/zookeys.768.24423.figure6" httpUri="https://binary.pensoft.net/fig/211216" pageId="4" pageNumber="117">6I</figureCitation>
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) with outer margins of parameres widely curved, at most slightly sinuated; median lobe strongly constricted near midlength, continuing as a narrow and roundly pointed bar; gonopore located at midlength of narrow apical half of median lobe.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="etymology">
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<paragraph pageId="4" pageNumber="117">Etymology.</paragraph>
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<paragraph pageId="4" pageNumber="117">Noun in apposition. Named after the type locality of "La Escalera", which is the road that ascends from lowlands to the high-elevation plateau known as the "Gran Sabana".</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="distribution">
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<paragraph pageId="4" pageNumber="117">Distribution.</paragraph>
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<paragraph pageId="4" pageNumber="117">
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Venezuela (
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<normalizedToken originalValue="Bolívar">Bolivar</normalizedToken>
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). Collected at 630 m in elevation. See Fig.
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Distribution of Crucisternum species." figureDoi="10.3897/zookeys.768.24423.figure7" httpUri="https://binary.pensoft.net/fig/211218" pageId="4" pageNumber="117">7</figureCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="117" type="biology_ecology">
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<paragraph pageId="4" pageNumber="117">Biology.</paragraph>
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<paragraph pageId="4" pageNumber="117">
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The only known series of this species was collected along the margin of a densely forested rocky stream. See Fig.
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Habitat of Crucisternum spp. A-B Habitat for C. ouboteri Suriname, Raleighvallen, collecting event SR 12 - 0727 - 03 A C Type locality and habitat for C. ouboteri, Suriname, Brownsberg Nature Park, collecting event SR 12 - 0804 - 01 A D Type locality and habitat for C. vanessae, Suriname, Tafelberg Summit, Caiman Creek, collecting event SR 13 - 0819 - 05 D E-F Type locality and habitat for C. escalera, Venezuela, Bolivar State, along La Escalera, collecting event AS- 08 - 058." figureDoi="10.3897/zookeys.768.24423.figure8" httpUri="https://binary.pensoft.net/fig/211219" pageId="4" pageNumber="117">8E, F</figureCitation>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |