508 lines
56 KiB
XML
508 lines
56 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.476.8630" ID-PMC="PMC4311692" ID-Pensoft-Pub="1313-2970-476-1" ID-Pensoft-UUID="FC4DC947FF97FF86190BFFD8B82CAB56" ID-PubMed="25685002" ID-Zenodo-Dep="578702" ID-ZooBank="086D71AF8A294F028559C2E0456B5C5B" ModsDocID="1313-2970-476-1" checkinTime="1451244761026" checkinUser="pensoft" docAuthor="Gustafson, Grey T. & Miller, Kelly B." docDate="2015" docId="7BCF7CADF529BFC51B707E88F678EC8A" docLanguage="en" docName="ZooKeys 476: 1-135" docOrigin="ZooKeys 476" docPubDate="2015-01-23" docSource="http://dx.doi.org/10.3897/zookeys.476.8630" docTitle="Dineutus truncatus Sharp 1873" docType="treatment" docVersion="5" id="FC4DC947FF97FF86190BFFD8B82CAB56" lastPageNumber="87" masterDocId="FC4DC947FF97FF86190BFFD8B82CAB56" masterDocTitle="The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)" masterLastPageNumber="135" masterPageNumber="1" pageNumber="83" updateTime="1668159852297" 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>The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)</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>Gustafson, Grey T.</mods:namePart>
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<mods:affiliation>Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA</mods:affiliation>
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<mods:nameIdentifier type="email">gtgustafson@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>Miller, Kelly B.</mods:namePart>
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<mods:affiliation>Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, 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>2015</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2015-01-23</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>476</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>135</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.476.8630</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.476.8630</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-476-1</mods:identifier>
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<mods:identifier type="ZooBank">086D71AF8A294F028559C2E0456B5C5B</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FC4DC947FF97FF86190BFFD8B82CAB56</mods:identifier>
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<mods:identifier type="Zenodo-Dep">578702</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152057931" LSID="urn:lsid:plazi:treatment:7BCF7CADF529BFC51B707E88F678EC8A" httpUri="http://treatment.plazi.org/id/7BCF7CADF529BFC51B707E88F678EC8A" lastPageId="86" lastPageNumber="87" pageId="82" pageNumber="83">
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<subSubSection pageId="82" pageNumber="83" type="nomenclature">
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<paragraph pageId="82" pageNumber="83">
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<taxonomicName LSID="7BCF7CAD-F529-BFC5-1B70-7E88F678EC8A" authority="Sharp, 1873" authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<pageBreakToken pageId="82" pageNumber="83" start="start">Dineutus</pageBreakToken>
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truncatus Sharp, 1873
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</taxonomicName>
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<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="82" pageNumber="83">Figures 30</figureCitation>
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<figureCitation captionStart="Figure 47" captionStartId="F47" captionText="Figure 47. Dineutus truncatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="82" pageNumber="83">, 47</figureCitation>
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<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="82" pageNumber="83">, 48</figureCitation>
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<figureCitation captionStart="Figure 54" captionStartId="F54" captionText="Figure 54. General distribution map. A Dineutus productus B Dineutus solitarius C Dineutus sublineatus D Dineutus mexicanus, Dineutus truncatus." pageId="82" pageNumber="83">, 54</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="reference_group">
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<paragraph pageId="82" pageNumber="83">
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<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">Dineutes truncatus</taxonomicName>
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<bibRefCitation author="Sharp, D" journalOrPublisher="The Entomologists Monthly Magazine" pageId="96" pageNumber="97" pagination="53 - 54" refId="B119" refString="Sharp, D, 1873. Descriptions of three new species of water-beetle from Central America. The Entomologists Monthly Magazine 10: 53 - 54" title="Descriptions of three new species of water-beetle from Central America." volume="10" year="1873">Sharp 1873</bibRefCitation>
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: 54,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<emphasis italics="true" pageId="82" pageNumber="83">Dineutus truncatus</emphasis>
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</taxonomicName>
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:
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<bibRefCitation author="Ochs, G" journalOrPublisher="American Museum Novitates" pageId="94" pageNumber="95" pagination="1 - 8" refId="B86" refString="Ochs, G, 1924. On the West Indian Gyrinidae and a new species of Gyretes from northern Brazil. American Museum Novitates 125: 1 - 8" title="On the West Indian Gyrinidae and a new species of Gyretes from northern Brazil." volume="125" year="1924">Ochs 1924</bibRefCitation>
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: 1,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Dineutus) truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus" subGenus="Dineutus">Dineutus (Dineutus) truncatus</taxonomicName>
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:
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<bibRefCitation author="Ochs, G" journalOrPublisher="Entomologische Zeitschrift" pageId="94" pageNumber="95" pagination="129 - 140" refId="B89" refString="Ochs, G, 1926a. Die Dineutini. 2. Tribus der Unterfamilien Enhydrinae Fam. Gyrinidae (Col). A. Aligemeiner Teil. Entomologische Zeitschrift 40: 129 - 140" title="Die Dineutini. 2. Tribus der Unterfamilien Enhydrinae Fam. Gyrinidae (Col). A. Aligemeiner Teil." volume="40" year="1926 a">Ochs 1926a</bibRefCitation>
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: 138,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<emphasis italics="true" pageId="82" pageNumber="83">Dineutus truncatus</emphasis>
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</taxonomicName>
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:
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<bibRefCitation author="Blackwelder, RE" journalOrPublisher="Smithsonian Institution, Washington D. C." pageId="91" pageNumber="92" refId="B6" refString="Blackwelder, RE, 1944. Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part 1. Smithsonian Institution, Washington D. C." title="Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part 1." year="1944">Blackwelder 1944</bibRefCitation>
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: 81,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Dineutus) truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus" subGenus="Dineutus">Dineutus (Dineutus) truncatus</taxonomicName>
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:
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<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
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: 288,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Cyclinus) truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus" subGenus="Cyclinus">Dineutus (Cyclinus) truncatus</taxonomicName>
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:
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<bibRefCitation author="Brinck, P" journalOrPublisher="Acta Universitatis Lundensis Nova Series" pageId="91" pageNumber="92" pagination="1 - 144" refId="B8" refString="Brinck, P, 1955. A revision of the Gyrinidae (Coleoptera) of the Ethiopian region. I. Acta Universitatis Lundensis Nova Series 51: 1 - 144" title="A revision of the Gyrinidae (Coleoptera) of the Ethiopian region. I." volume="51" year="1955">Brinck 1955</bibRefCitation>
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: 106,
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<emphasis italics="true" pageId="82" pageNumber="83">Dineutus truncatus</emphasis>
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</taxonomicName>
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:
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<bibRefCitation author="Arce-Perez, R" journalOrPublisher="Dugesiana" pageId="91" pageNumber="92" pagination="69 - 104" refId="B2" refString="Arce-Perez, R, Roughley, RE, 1999. Lista anotada y claves para los Hydradephaga (Coleoptera: Adephaga: Dytiscidae, Noteridae, Haliplidae, Gyrinidae) de Mexico. Dugesiana 6: 69 - 104" title="Lista anotada y claves para los Hydradephaga (Coleoptera: Adephaga: Dytiscidae, Noteridae, Haliplidae, Gyrinidae) de Mexico." volume="6" year="1999">
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<normalizedToken originalValue="Arce-Pérez">Arce-Perez</normalizedToken>
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and Roughley 1999
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</bibRefCitation>
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: 84.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="type locality">
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<paragraph pageId="82" pageNumber="83">Type locality.</paragraph>
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<paragraph pageId="82" pageNumber="83">Chontales, Nicaragua, BMNH</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="specimens examined">
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<paragraph pageId="82" pageNumber="83">Specimens examined.</paragraph>
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<paragraph pageId="82" pageNumber="83">34</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="type material">
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<paragraph pageId="82" pageNumber="83">Type material.</paragraph>
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<paragraph pageId="82" pageNumber="83">Not examined.</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="material examined">
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<paragraph pageId="82" pageNumber="83">Material examined.</paragraph>
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<paragraph pageId="82" pageNumber="83">
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<emphasis bold="true" pageId="82" pageNumber="83">COSTA RICA:</emphasis>
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<emphasis bold="true" pageId="82" pageNumber="83">Alajuela:</emphasis>
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Zapote Upala, nr. Bijaqua, 20.x.1973, leg. F. Cordera EMEC 204671 (1 ex. EMEC); same as previous except: 10.ix.1973, leg. R. Ortiz, EMEC 204908 (1 ex. EMEC);
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<emphasis bold="true" pageId="82" pageNumber="83">Guanacaste:</emphasis>
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Rincon de la Vieja N.P., Quebrada Cataracta, 15.vi.2003, leg. W.D. Shepard, EMEC 204646-204667 (22 ex. EMEC);
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<emphasis bold="true" pageId="82" pageNumber="83">Puntarenas:</emphasis>
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Las Cruces Bio. Station, water tank, 1158 m, 19.vi.2003, leg. A.E.Z. Short, (2 ex. KSEM); Monte Verde, Rio Guacimal, 1420 m, 15.v.1989, leg. J. Ashe, R. Leschen, R. Brooks, Snow Entomol. Mus. Costa Rica Exped. #198 (1 ex. KSEM); 6 km S Sta. Elena, 6-7.vi.1983, leg. J.E. Wappes (1 ex. FSCA).
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<emphasis bold="true" pageId="82" pageNumber="83">PANAMA:</emphasis>
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<emphasis bold="true" pageId="82" pageNumber="83">
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<normalizedToken originalValue="Ngäbe-Buglé">Ngaebe-Bugle</normalizedToken>
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:
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</emphasis>
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nr. Soloy,
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<geoCoordinate degrees="8" direction="north" minutes="36.554" orientation="latitude" precision="1" value="8.609233">8°36.554'N</geoCoordinate>
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,
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<geoCoordinate degrees="82" direction="west" minutes="07.814" orientation="longitude" precision="1" value="-82.13023">82°07.814'W</geoCoordinate>
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, 7.vi.2009, leg. Nearns, Lord, small stream (6 ex. MSBA).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="82" pageNumber="83" type="diagnosis">
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<paragraph pageId="82" pageNumber="83">Diagnosis.</paragraph>
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<paragraph pageId="82" pageNumber="83">
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Male (Fig.
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<figureCitation captionStart="Figure 47" captionStartId="F47" captionText="Figure 47. Dineutus truncatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="82" pageNumber="83">47C-D</figureCitation>
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): Size: 13.5-15.4 mm. Body form regularly oval; elytral apices truncate, lateral corner of truncation roundly angled, fine serration present apically, apicolateral margin without sinuation, elytral striae primarily indistinct, dense microreticulation covering entirety of elytra and pronotum, producing a polished metal feel, elytra often with violet iridescence; ulimate protarsus (Fig.
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<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="82" pageNumber="83">30C</figureCitation>
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) ca. 2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide; protibiae club-shaped; profemora with small acute sub-apicoventral tooth; mesotarsal claws (Fig.
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<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="82" pageNumber="83">48C</figureCitation>
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) without ventral margin expanded into weak denticle; venter darkly colored, usually black to dark reddish brown, mesothoracic and metathoracic legs usually lighter in coloration, as well as apex of abdomen; Aedeagus (Fig.
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<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="82" pageNumber="83">48A, B, D</figureCitation>
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) median lobe in dorsal view nearly evenly attenuated basally to apically, more strongly narrowed in apical 1/3, apex very shortly rounded, not acuminate, in lateral view median lobe ventrally weakly sinuate in apical 1/3, noticeably dorsally curved, ventrally median lobe with parallel sided sperm-groove, parameres as wide as base of median lobe apically, weakly laterally expanded in apical 1/3.
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</paragraph>
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<paragraph pageId="82" pageNumber="83">
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Female (Fig.
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<figureCitation captionStart="Figure 47" captionStartId="F47" captionText="Figure 47. Dineutus truncatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="82" pageNumber="83">47A-B</figureCitation>
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): Size: 13.3-15.1 mm. Body form regularly oval; elytral apices truncate, lateral corner of truncation roundly angled, fine serration present apically, apicolateral margin without sinuation, elytral striae primarily indistinct, visible upon close examination, dense microreticulation covering entirety of elytra and pronotum, producing a polished metal feel, elytra often with violet iridescence; ulimate protarsus ca. 2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide; protibiae club-shaped; profemora without sub-apicoventral tooth; venter darkly colored, usually black to dark reddish brown, mesothoracic and metathoracic legs usually lighter in coloration, as well as apex of abdomen.
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</paragraph>
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<caption pageId="82" pageNumber="83" start="Figure 47" startId="F47">
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<paragraph pageId="82" pageNumber="83">
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<emphasis bold="true" pageId="82" pageNumber="83">Figure 47.</emphasis>
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<emphasis italics="true" pageId="82" pageNumber="83">Dineutus truncatus</emphasis>
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</taxonomicName>
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.
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<emphasis bold="true" pageId="82" pageNumber="83">A</emphasis>
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♀ dorsal habitus
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<emphasis bold="true" pageId="82" pageNumber="83">B</emphasis>
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♀ ventral habitus
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<emphasis bold="true" pageId="82" pageNumber="83">C</emphasis>
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♂ dorsal habitus
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<emphasis bold="true" pageId="82" pageNumber="83">D</emphasis>
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♂ ventral habitus. All scale bars ≈ 2 mm.
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</paragraph>
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</caption>
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<caption pageId="82" pageNumber="83" start="Figure 48" startId="F48">
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<paragraph pageId="82" pageNumber="83">
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<emphasis bold="true" pageId="82" pageNumber="83">Figure 48.</emphasis>
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<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="82" pageNumber="83" phylum="Arthropoda" rank="species" species="truncatus">
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<emphasis italics="true" pageId="82" pageNumber="83">Dineutus truncatus</emphasis>
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||
</taxonomicName>
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||
.
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<emphasis bold="true" pageId="82" pageNumber="83">A</emphasis>
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aedeagus dorsal view
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<emphasis bold="true" pageId="82" pageNumber="83">B</emphasis>
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aedeagus ventral view
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<emphasis bold="true" pageId="82" pageNumber="83">C</emphasis>
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♂ mesotarsal claws
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<emphasis bold="true" pageId="82" pageNumber="83">D</emphasis>
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aedeagus lateral view. Scale bar for
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<emphasis bold="true" pageId="82" pageNumber="83">C</emphasis>
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≈ 0.10 mm all others ≈ 1 mm.
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</paragraph>
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||
</caption>
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||
</subSubSection>
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||
<subSubSection lastPageId="85" lastPageNumber="86" pageId="83" pageNumber="84" type="differential diagnosis">
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<paragraph pageId="83" pageNumber="84">
|
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<pageBreakToken pageId="83" pageNumber="84" start="start">Differential</pageBreakToken>
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||
diagnosis.
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</paragraph>
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<paragraph pageId="84" pageNumber="85">
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="truncatus">
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||
<emphasis italics="true" pageId="84" pageNumber="85">
|
||
<pageBreakToken pageId="84" pageNumber="85" start="start">Dineutus</pageBreakToken>
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||
truncatus
|
||
</emphasis>
|
||
</taxonomicName>
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||
is unique among all other New World
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="genus">
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<emphasis italics="true" pageId="84" pageNumber="85">Dineutus</emphasis>
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||
</taxonomicName>
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||
in having the elytral apices truncate, with fine serration present apically, males with the ultimate protarsomeres (Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="84" pageNumber="85">30C</figureCitation>
|
||
) ca. 2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide, profemora with a small sub-apicoventral tooth present, mesotarsal claws with ventral margins not expanded into a weak denticle (Fig.
|
||
<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="84" pageNumber="85">48C</figureCitation>
|
||
), and in the form of the male aedeagus (Fig.
|
||
<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="84" pageNumber="85">48A</figureCitation>
|
||
). The species most similar to
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
is
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
(originally described as a subspecies of
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
by
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Entomologische Zeitschrift" pageId="94" pageNumber="95" pagination="13 - 14" refId="B87" refString="Ochs, G, 1925a. Eine neue form v. Dineutus truncatus Sharp. Entomologische Zeitschrift 39: 13 - 14" title="Eine neue form v. Dineutus truncatus Sharp." volume="39" year="1925 a">Ochs [1925a]</bibRefCitation>
|
||
). Both species have their elytral apices truncate, however only
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
has the elytral apices with fine serration present, those of
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
have the serration much more blunt and thick and/or reduced, in some specimens down to only irregularities of the elytral apices. There is a general difference between the species in the dorsoventral convexity of the body form in lateral view. In general,
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
tends to be noticeably more humped in the scutellar region with the posterior length of the elytra more dorsoventral depressed, while in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
the posterior length of the elytra is less dorsoventrally depressed, giving
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="84" pageNumber="85" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="84" pageNumber="85">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
a generally less dorsoventrally convex lateral profile, without as much of a pronounced hump in the scutellar region.
|
||
</paragraph>
|
||
<paragraph lastPageId="85" lastPageNumber="86" pageId="84" pageNumber="85">
|
||
Males of
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">
|
||
<pageBreakToken pageId="85" pageNumber="86" start="start">Dineutus</pageBreakToken>
|
||
truncatus
|
||
</emphasis>
|
||
</taxonomicName>
|
||
can further be separated from males of
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
by several characters. In
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
the elytral striae, while present, are nearly indistinct and are weakly impressed, while in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
the striae are evident just posterior to the middle of the elytra, disappearing laterally and before the elytral apices. The protarsi (Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30</figureCitation>
|
||
) have several characters separating
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
. The size of the ultimate protarsomere in
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30C</figureCitation>
|
||
) is ca. 2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide, while in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30A</figureCitation>
|
||
) the ulimate protarsomere is less than 2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide. The shape of the lateral margins of the protarsal tarsomeres 2-5 also differs among the species. In
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
, in anterior view, the tarsomeres are laterally flatly rounded (Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30C</figureCitation>
|
||
), this differs strongly from a specimen of uncertain species assignment from Oaxaca (see specimens of uncertain placement below) in which the lateral margins of the protarsi in anterior view are roundly angled (Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30B</figureCitation>
|
||
), but are similar to those of
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 30" captionStartId="F30" captionText="Figure 30. ♂ protarsus of A Dineutus mexicanus B Dineutus sp. from nr. Tapanatepec, Oaxaca, Mexico C Dineutus truncatus. Scale bar ≈ 1 mm." pageId="85" pageNumber="86">30A</figureCitation>
|
||
). The mesotarsal claws can also assist in separating the males of
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="85" pageNumber="86">48C</figureCitation>
|
||
) from
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 29" captionStartId="F29" captionText="Figure 29. Dineutus mexicanus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="85" pageNumber="86">29C</figureCitation>
|
||
), in that the ventral-margins lack an expansion forming a weak denticle. By far the most reliable way to separate the males of these species is by the form of the aedeagus. In
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 48" captionStartId="F48" captionText="Figure 48. Dineutus truncatus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="85" pageNumber="86">48A</figureCitation>
|
||
) the median lobe of the aedeagus is nearly evenly tapered basally to apically, with the apex narrowly rounded and appearing highly pointed, as opposed to the being acuminate as in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 29" captionStartId="F29" captionText="Figure 29. Dineutus mexicanus. A aedeagus dorsal view B aedeagus ventral view C ♂ mesotarsal claws D aedeagus lateral view. Scale bar for C ≈ 0.10 mm all others ≈ 1 mm." pageId="85" pageNumber="86">29A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="85" pageNumber="86">
|
||
Females of the species are primarily separated by the general differences listed between the species for elytral differences and body form differences. The size of the ultimate protarsomere in females shows similar ratios to the males being ca. 2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide in
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
, while in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
the ulimate protarsomere is less than 2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="85" pageNumber="86" type="distribution">
|
||
<paragraph pageId="85" pageNumber="86">Distribution</paragraph>
|
||
<paragraph pageId="85" pageNumber="86">
|
||
<emphasis bold="true" pageId="85" pageNumber="86">
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 54" captionStartId="F54" captionText="Figure 54. General distribution map. A Dineutus productus B Dineutus solitarius C Dineutus sublineatus D Dineutus mexicanus, Dineutus truncatus." pageId="85" pageNumber="86">54D</figureCitation>
|
||
).
|
||
</emphasis>
|
||
Known only from Central America from Nicaragua to western Panama (
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Sharp, D" journalOrPublisher="Biologia Centrali-Americana InsectaColeoptera" pageId="96" pageNumber="97" pagination="48 - 52" refId="B120" refString="Sharp, D, 1882. Gyrinidae. Biologia Centrali-Americana InsectaColeoptera Vol 1 (Part 2): 48 - 52" title="Gyrinidae." volume="Vol 1" year="1882">Sharp 1882</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="85" pageNumber="86" type="habitat">
|
||
<paragraph pageId="85" pageNumber="86">Habitat.</paragraph>
|
||
<paragraph pageId="85" pageNumber="86">
|
||
Lotic and lentic (
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
). The authors have collected this species from a medium sized stream with clear water, running through a small agrarian valley in
|
||
<normalizedToken originalValue="Chiriquí">Chiriqui</normalizedToken>
|
||
, Panama. In the stream
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
was found in areas outside of the rapids where the water slowed and pooled, such as the stream margins or behind large rocks in the stream.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="86" lastPageNumber="87" pageId="85" pageNumber="86" type="discussion">
|
||
<paragraph pageId="85" pageNumber="86">Discussion.</paragraph>
|
||
<paragraph pageId="85" pageNumber="86">
|
||
This species has the most southern range of any New World
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus</emphasis>
|
||
</taxonomicName>
|
||
being found only in Central America, as far south as Panama. It is unclear however, the true extent of the range of
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
. In Panama, all specimens observed in this study were from the western half of the country near Soloy and
|
||
<normalizedToken originalValue="Chiriquí">Chiriqui</normalizedToken>
|
||
, with most references in the literature for the distribution of
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
in Panama only mentioning the latter locality (
|
||
<bibRefCitation author="Sharp, D" journalOrPublisher="Biologia Centrali-Americana InsectaColeoptera" pageId="96" pageNumber="97" pagination="48 - 52" refId="B120" refString="Sharp, D, 1882. Gyrinidae. Biologia Centrali-Americana InsectaColeoptera Vol 1 (Part 2): 48 - 52" title="Gyrinidae." volume="Vol 1" year="1882">Sharp 1882</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
). The north and western limits of this
|
||
<normalizedToken originalValue="species’">species'</normalizedToken>
|
||
range is even less clear. The type locality is Chontales, Nicaragua, and the species is readily found in Costa Rica, but literature references also suggest the limits may be as far northwest as Guatemala and Mexico (
|
||
<bibRefCitation author="Sharp, D" journalOrPublisher="The Entomologists Monthly Magazine" pageId="96" pageNumber="97" pagination="53 - 54" refId="B119" refString="Sharp, D, 1873. Descriptions of three new species of water-beetle from Central America. The Entomologists Monthly Magazine 10: 53 - 54" title="Descriptions of three new species of water-beetle from Central America." volume="10" year="1873">Sharp 1873</bibRefCitation>
|
||
,
|
||
<bibRefCitation author="Sharp, D" journalOrPublisher="Biologia Centrali-Americana InsectaColeoptera" pageId="96" pageNumber="97" pagination="48 - 52" refId="B120" refString="Sharp, D, 1882. Gyrinidae. Biologia Centrali-Americana InsectaColeoptera Vol 1 (Part 2): 48 - 52" title="Gyrinidae." volume="Vol 1" year="1882">1882</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
). It is likely as previously suggest by
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs (1949)</bibRefCitation>
|
||
that these data refer to
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
is superficially very similar to
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
in habitus and specimens determined to be
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
in this study included a female specimen from Guatemala, and others from as far southeast as El Salvador. As is often becoming the case in
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus</emphasis>
|
||
</taxonomicName>
|
||
, some very similar species have overlapping ranges with one having a very limited range of endemism relative to a another more widely ranging species.
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
follows this pattern in relation to
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
, seemingly only definitely being found in Nicaragua, Costa Rica, and western Panama. As is the case with other species with narrow ranges
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="85" pageNumber="86" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="85" pageNumber="86">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
specimens were relatively few in number, and it is not well represented in many museums.
|
||
</paragraph>
|
||
<paragraph lastPageId="86" lastPageNumber="87" pageId="85" pageNumber="86">
|
||
The authors have collected this species from mountainous
|
||
<normalizedToken originalValue="Chiriquí">Chiriqui</normalizedToken>
|
||
, in western Panama, the place where numerous historical references record specimens (
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Sharp, D" journalOrPublisher="The Entomologists Monthly Magazine" pageId="96" pageNumber="97" pagination="53 - 54" refId="B119" refString="Sharp, D, 1873. Descriptions of three new species of water-beetle from Central America. The Entomologists Monthly Magazine 10: 53 - 54" title="Descriptions of three new species of water-beetle from Central America." volume="10" year="1873">Sharp 1873</bibRefCitation>
|
||
). The species is quite common through Costa Rica, which is dominated by central mountain ranges, and its type locality is Western Nicaragua, the mountain
|
||
<pageBreakToken pageId="86" pageNumber="87" start="start">ous</pageBreakToken>
|
||
region of the country. These records appear to suggest that
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="86" pageNumber="87">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
may be restricted to mountainous regions, and may be a mountain endemic, similar to the situation possibly seen in
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="86" pageNumber="87">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
. It may be that the most southeastern extent of
|
||
<taxonomicName authorityName="Ochs" authorityYear="1925" baseAuthorityName="Gustafson & Miller" baseAuthorityYear="2015" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus mexicanus" order="Coleoptera" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="mexicanus">
|
||
<emphasis italics="true" pageId="86" pageNumber="87">Dineutus mexicanus</emphasis>
|
||
</taxonomicName>
|
||
' range is the Cordillera de Talamanca in Panama, and the northwestern most portion of its range may reflect Nicaraguan mountain ranges.
|
||
</paragraph>
|
||
<paragraph pageId="86" pageNumber="87">
|
||
In Costa Rica where
|
||
<taxonomicName authorityName="Sharp" authorityYear="1873" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus truncatus" order="Coleoptera" pageId="86" pageNumber="87" phylum="Arthropoda" rank="species" species="truncatus">
|
||
<emphasis italics="true" pageId="86" pageNumber="87">Dineutus truncatus</emphasis>
|
||
</taxonomicName>
|
||
is very common it has been given the common name of
|
||
<normalizedToken originalValue="“mamatetas”">"mamatetas"</normalizedToken>
|
||
(
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs 1949</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Hogue, CL" journalOrPublisher="Great Lakes Entomologist" pageId="92" pageNumber="93" refId="B46" refString="Hogue, CL, 1993. Whirligig Beetles. Latin American insects and entomology. University of California Press, Berkley, Los Angeles, Oxford, xiv + 537 pp." title="Whirligig Beetles. Latin American insects and entomology. University of California Press, Berkley, Los Angeles, Oxford, xiv + 537 pp." year="1993">Hogue 1993</bibRefCitation>
|
||
). The literal translation from Spanish appears to mean nipple sucker or nipple suckling.
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs (1949)</bibRefCitation>
|
||
translated this name to
|
||
<normalizedToken originalValue="“dug-sucker”">"dug-sucker"</normalizedToken>
|
||
which the second meaning for dug is nipple, in agreement with the translation. The reason for this common name does not appear to be known.
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs (1949)</bibRefCitation>
|
||
says that Nevermann believed it to come from superstitious ideas, but does not elaborate, nor does
|
||
<bibRefCitation author="Ochs, G" journalOrPublisher="Revista de Entomologia" pageId="95" pageNumber="96" pagination="253 - 300" refId="B96" refString="Ochs, G, 1949. A revision of the Gyrinoidea of Central America (Coleoptera). Revista de Entomologia 20: 253 - 300" title="A revision of the Gyrinoidea of Central America (Coleoptera)." volume="20" year="1949">Ochs (1949)</bibRefCitation>
|
||
provide a citation for
|
||
<normalizedToken originalValue="Nevermann’s">Nevermann's</normalizedToken>
|
||
interpretation, for further investigation. An interesting connection to the name mamatetas and the literal translation of nipple sucker, is the practice of some young girls in East Africa to use gyrinids to stimulate breast growth (
|
||
<bibRefCitation author="Kutalek, R" journalOrPublisher="Journal of Ethnobiology" pageId="93" pageNumber="94" pagination="115 - 128" publicationUrl="10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" refId="B55" refString="Kutalek, R, Kassa, A, 2005. The use of gyrinids and dytiscids for stimulating breast growth in East Africa. Journal of Ethnobiology 25: 115 - 128, DOI: 10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" title="The use of gyrinids and dytiscids for stimulating breast growth in East Africa." url="10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" volume="25" year="2005">Kutalek and Kassa 2005</bibRefCitation>
|
||
). Young girls allow gyrinids to bite their nipples in hopes of stimulating the breasts to grow larger, and interestingly, among the gyrinids in use are common African species of
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="86" pageNumber="87" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="86" pageNumber="87">Dineutus</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Kutalek, R" journalOrPublisher="Journal of Ethnobiology" pageId="93" pageNumber="94" pagination="115 - 128" publicationUrl="10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" refId="B55" refString="Kutalek, R, Kassa, A, 2005. The use of gyrinids and dytiscids for stimulating breast growth in East Africa. Journal of Ethnobiology 25: 115 - 128, DOI: 10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" title="The use of gyrinids and dytiscids for stimulating breast growth in East Africa." url="10.2993/0278-0771(2005)25[115:TUOGAD]2.0.CO;2" volume="25" year="2005">Kutalek and Kassa 2005</bibRefCitation>
|
||
). It is unclear, if there is any similar practice present in Costa Rica, thus resulting in the common name referring to breast suckling.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |