456 lines
46 KiB
XML
456 lines
46 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="38318B88B4C652948C60BB091C78F7BE" 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 solitarius Aube 1838" docType="treatment" docVersion="3" id="FC4DC947FF97FF86190BFFD8B82CAB56" lastPageNumber="75" masterDocId="FC4DC947FF97FF86190BFFD8B82CAB56" masterDocTitle="The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)" masterLastPageNumber="135" masterPageNumber="1" pageNumber="73" 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="182234742" LSID="urn:lsid:plazi:treatment:38318B88B4C652948C60BB091C78F7BE" httpUri="http://treatment.plazi.org/id/38318B88B4C652948C60BB091C78F7BE" lastPageId="74" lastPageNumber="75" pageId="72" pageNumber="73">
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<subSubSection pageId="72" pageNumber="73" type="nomenclature">
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<paragraph pageId="72" pageNumber="73">
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<taxonomicName LSID="38318B88-B4C6-5294-8C60-BB091C78F7BE" authority="Aube, 1838" authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
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Dineutus solitarius
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<normalizedToken originalValue="Aubé">Aube</normalizedToken>
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, 1838
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</taxonomicName>
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<figureCitation captionStart="Figure 42" captionStartId="F42" captionText="Figure 42. Dineutus solitarius. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="72" pageNumber="73">Figures 42</figureCitation>
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<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Dineutus solitarius. 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="72" pageNumber="73">, 43</figureCitation>
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<figureCitation captionStart="Figure 46" captionStartId="F46" captionText="Figure 46. Variation in specimens from Sierra de Zapotan, Narayit, Mexico. A ♂ Dineutus sublineatus dorsal habitus B ♂ Dineutus solitarius male dorsal habitus. ♀ Dineutus sublineatus from Salama Guatemala C dorsal habitus. All scale bars ≈ 2 mm." pageId="72" pageNumber="73">, 46</figureCitation>
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<figureCitation captionStart="Figure 51" captionStartId="F51" captionText="Figure 51. Type specimens A Dineutus analis Regimbart, 1882 lectotype and labels B Dineutus discolor Aube, 1838 lectotype and labels C Dineutus solitarius Aube, 1838 lectotype and labels D Dineutus metallicus Aube, 1838 lectotype and labels E Gyrinus longimanus Olivier, 1795 lectotype and labels F Dineutus truncatus mexicanus Ochs, 1925 holotype and labels." pageId="72" pageNumber="73">, 51</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="72" pageNumber="73">, 54</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="72" pageNumber="73" type="reference_group">
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<paragraph pageId="72" pageNumber="73">
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<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">Dineutes solitarius</taxonomicName>
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<bibRefCitation author="Aube, C" journalOrPublisher="Paris" pageId="91" pageNumber="92" refId="B4" refString="Aube, C, 1838. Species general des Hydrocanthares et Gyriniens, par le docteur Ch. Aube; pour faire suite au species general des Coleopteres de la collection de M. Le Comte Dejean. Paris" title="Species general des Hydrocanthares et Gyriniens, par le docteur Ch. Aube; pour faire suite au species general des Coleopteres de la collection de M. Le Comte Dejean" year="1838">
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<normalizedToken originalValue="Aubé">Aube</normalizedToken>
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1838
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</bibRefCitation>
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: 780,
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<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Cyclinus) solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius" subGenus="Cyclinus">Dineutus (Cyclinus) solitarius</taxonomicName>
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:
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<bibRefCitation author="Hatch, MH" journalOrPublisher="Papers of the Michigan Academy of Science, Arts and Letters" pageId="92" pageNumber="93" pagination="429 - 467" refId="B41" refString="Hatch, MH, 1925b. The phylogeny and phylogenetic tendencies of Gyrinidae. Papers of the Michigan Academy of Science, Arts and Letters V: 429 - 467" title="The phylogeny and phylogenetic tendencies of Gyrinidae." volume="V" year="1925 b">Hatch 1925b</bibRefCitation>
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: 137,
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<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
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<emphasis italics="true" pageId="72" pageNumber="73">Dineutus solitarius</emphasis>
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</taxonomicName>
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:
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<bibRefCitation author="Leech, HB" journalOrPublisher="The Pan-Pacific Entomologist" pageId="93" pageNumber="94" refId="B63" refString="Leech, HB, 1940. Dineutus in California. (Coleoptera, Gyrinidae). The Pan-Pacific Entomologist 16, 74 pp." title="Dineutus in California. (Coleoptera, Gyrinidae)." volume="16" year="1940">Leech 1940</bibRefCitation>
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: 74,
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<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Cyclinus) solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius" subGenus="Cyclinus">Dineutus (Cyclinus) solitarius</taxonomicName>
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:
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<bibRefCitation author="Leech, HB" journalOrPublisher="Proceedings of the California Academy of Science" pageId="93" pageNumber="94" pagination="375 - 484" refId="B64" refString="Leech, HB, 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 11. Coleoptera: Haliplidae, Dytiscidae, Gyrinidae, Hydrophilidae, Limnebiidae. Proceedings of the California Academy of Science 24: 375 - 484" title="Contributions toward a knowledge of the insect fauna of Lower California. No. 11. Coleoptera: Haliplidae, Dytiscidae, Gyrinidae, Hydrophilidae, Limnebiidae." volume="24" year="1948">Leech 1948</bibRefCitation>
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: 422,
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<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
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<emphasis italics="true" pageId="72" pageNumber="73">Dineutus solitarius</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="72" pageNumber="73" type="type locality">
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<paragraph pageId="72" pageNumber="73">Type locality.</paragraph>
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<paragraph pageId="72" pageNumber="73">Mexico, Veracruz</paragraph>
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</subSubSection>
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<subSubSection pageId="72" pageNumber="73" type="specimens examined">
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<paragraph pageId="72" pageNumber="73">Specimens examined.</paragraph>
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<paragraph pageId="72" pageNumber="73">87</paragraph>
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</subSubSection>
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<subSubSection pageId="72" pageNumber="73" type="type material examined">
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<paragraph pageId="72" pageNumber="73">Type material examined.</paragraph>
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<paragraph pageId="72" pageNumber="73">
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Lectotype, here designated (1 ♂ male pinned) "MUSEUM PARIS/ VERA-CRUZ/ 1833 [beige label, typed black ink]// green disc [underneath is handwritten Veracruz/ 1883// in black ink]//
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<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
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<emphasis italics="true" pageId="72" pageNumber="73">solitarius</emphasis>
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</taxonomicName>
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[beige label, handwritten in black ink, handwriting appears to be
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<normalizedToken originalValue="Aubé’s">Aube's</normalizedToken>
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]// TYPE [white label, typed red ink]// LECTOTYPE [red label, typed black ink]//" deposited in the MNHN.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="72" pageNumber="73" type="material examined">
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<paragraph pageId="72" pageNumber="73">Material examined.</paragraph>
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<paragraph pageId="72" pageNumber="73">
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<emphasis bold="true" pageId="72" pageNumber="73">COSTA RICA:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">Guanacaste:</emphasis>
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Santa Rosa N.P.,
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<geoCoordinate degrees="10" direction="north" minutes="50.35" orientation="latitude" precision="9" value="10.839167">10°50.35'N</geoCoordinate>
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,
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<geoCoordinate degrees="85" direction="west" minutes="37.07" orientation="longitude" precision="9" value="-85.617836">85°37.07'W</geoCoordinate>
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, 300 m, 6.vi.2008, leg. E. Nearns, I. Swift (2 ex. MSBA); 0.25km S Santa Rosa N.P., roadside pool, 15.vi.2003, leg. W.D. Shepard, EMEC 204684-204687; EMEC 204675 (5 ex. EMEC); La Pacifica nr Canas, 8.vi.1983, leg. J.E. Wappes, (1 ex. FSCA).
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<emphasis bold="true" pageId="72" pageNumber="73">EL SALVADOR:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">La Libertad:</emphasis>
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Hacienda Capolinas, 5 km NW Quezaltepeque, 455 m, 21.xii.1964, leg. M.E. Irwin (1 ex. UCRC).
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<emphasis bold="true" pageId="72" pageNumber="73">GUATEMALA:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">Jalapa:</emphasis>
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4-7 km E. Jalapa, 12.vi.1991, leg. J.E. Wappes (1 ex. FSCA).
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<emphasis bold="true" pageId="72" pageNumber="73">HONDURAS:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">Comayagua:</emphasis>
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Malootal Minas de Oro, v.1932, leg. J.B. Edwards (3 ex. KSEM);
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<emphasis bold="true" pageId="72" pageNumber="73">
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Francisco
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<normalizedToken originalValue="Morazán">Morazan</normalizedToken>
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:
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</emphasis>
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4.5 km S.E. El Zamorano, 25.iv.1993, leg. I. Stange & R. Miller (1 ex. FSCA);
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<emphasis bold="true" pageId="72" pageNumber="73">La Paz:</emphasis>
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La Paz, 21.vii.1978, leg. V. Diaz, EMEC 204672 (1 ex. EMEC).
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<emphasis bold="true" pageId="72" pageNumber="73">MEXICO:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">Chiapas:</emphasis>
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2.7mi W Colonia, Lazaro Cardenas, 6.viii.1965, leg. J.D. McCarty, EMEC 654699; EMEC 204761; EMEC 204769; EMEC 204777; EMEC 204801; EMEC 204807-204809 (8 ex. EMEC); 20 mi W of Cintalapa, 31.xii.1955, leg. J.C. Schaffner (2 ex. FSCA);
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<emphasis bold="true" pageId="72" pageNumber="73">Guerrero:</emphasis>
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Rincon, "kil.-256 S. MexCity", 31.x.1936, leg. H.D. Thomas (1 ex. KSEM);
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<emphasis bold="true" pageId="72" pageNumber="73">Jalisco:</emphasis>
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UNAM Biol. Sta. Chamela, 61 m, 9.viii.1982, leg. C.W. & L.
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<normalizedToken originalValue="O’Brien">O'Brien</normalizedToken>
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& G. Wibmer, at light (1 ex. FSCA); Est. Biol. Chamela, at lites, 13-22.vii.1992, leg. J. Chemsak, EMEC 204753; EMEC 204881; EMEC 204897; EMEC 204925 (4 ex. EMEC); 20 mi N Puerto Vallerta,
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<normalizedToken originalValue="“200”">"200"</normalizedToken>
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, 29.viii.1971, leg. J. Cicero (1 ex. FSCA);
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<emphasis bold="true" pageId="72" pageNumber="73">Nayarit:</emphasis>
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7 mi. N Tetitlan, 14.vi.1962, leg. D.H. Janzen, EMEC 204772-204773; EMEC 204786; EMEC 204800; EMEC 204805-204806; EMEC 204857-204858; EMEC 204917-204920 (11 ex. EMEC); El Pichon, 25.vi.1963 (1 ex. FSCA); Jesus Maria, 26.vi.1955, leg. B. Malkin, EMEC 204804 (1 ex. EMEC); Sierra Zapotan, 1300 m, iii.1943, leg. E. Paredes (3 ex. UCRC); 24 mi SE Tepic, 1045 m, 22.vi.1968, leg. A.R. Hardy, L. Espinosa, J.P. Abrayaya (2 ex. UCRC); 20.3 mi W Compostela, 60 m, 19.vi.1967, leg. A.R. Hardy (1 ex. UCRC);
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<emphasis bold="true" pageId="72" pageNumber="73">
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Nuevo
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<normalizedToken originalValue="León">Leon</normalizedToken>
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:
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</emphasis>
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10km N Linares, mercury vapor lamp, 430 m, 23.iii.1991, leg. R. Brooks, R. Leschen, Coll. No. 58 (1 ex. KSEM);
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<emphasis bold="true" pageId="72" pageNumber="73">Oaxaca:</emphasis>
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5 mi N La Ventosa, 4.vii.1970, leg. R.E. Beer & party (3 ex. KSEM); 80km N of Arriga,10.vi.1971, leg. S.R. & L.M. Steinhauser (2 ex. FSCA);
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<emphasis bold="true" pageId="72" pageNumber="73">Quintana Roo:</emphasis>
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10.9km S Playa del Carmen,1.vii.1990, leg. M.C. Thomas, (1 ex. FSCA); Isla de Cozumel, SW side 2mi W Cedral, 8.x.1993, leg. C.B. Barr & W.D. Shepard, EMEC 654700 (1 ex. EMEC);
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<emphasis bold="true" pageId="72" pageNumber="73">
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San Luis
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<normalizedToken originalValue="Potosí">Potosi</normalizedToken>
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:
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</emphasis>
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El Salto Falls, 15.vi.1956, leg. R.E. Beer & party (5 ex. KSEM); El Salto, 19.vi.1953, Univ. Kans. Mex. Expedition (2 ex. KSEM); same as previous except: 488 m, 24.viii.1954 (1 ex. KSEM); same as previous except: 381 m, 4.ix.1962, leg. Ordway & Marston, at light (1 ex. KSEM);
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<emphasis bold="true" pageId="72" pageNumber="73">Sinaloa:</emphasis>
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Culiaoan, 6 mi S, Black & White lights, 6.viii.1964, leg. J.A. Chemsak & J. Powell, EMEC 204803 (1 ex. EMEC); 5 mi N Mazatlan, at light, 11.x.1975, leg. J. Powell, J. Chemsak, T. Friedlander, EMEC 204778 (1 ex. EMEC); 15 mi SE Mazatlan, 27.vii.1973, leg. J. Chemsak, E.G. Linsleys & A.E. Michelbacher, EMEC 204779 (1 ex. EMEC);
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<emphasis bold="true" pageId="72" pageNumber="73">Veracruz:</emphasis>
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15mi NW of Acayucan, 18.vi.1958, leg. J.C. Schaffner, (1 ex. FSCA); Palma Sola, "255 Pastizal", 23.viii.1973, leg. G. Halffter & P. Reyes, Blacklight trap (1 ex. FSCA); 6mi SE Rinconada, 21.vi.1962, leg. D.H. Janzen, EMEC 204921 (1 ex. EMEC).
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<emphasis bold="true" pageId="72" pageNumber="73">NICARAGUA:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">Rivas:</emphasis>
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E of Lago de
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<normalizedToken originalValue="Apanás">Apanas</normalizedToken>
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,
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<geoCoordinate degrees="13" direction="north" minutes="12.77" orientation="latitude" precision="9" value="13.212833">13°12.77'N</geoCoordinate>
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,
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<geoCoordinate degrees="86" direction="west" minutes="58.06" orientation="longitude" precision="9" value="-86.96767">86°58.06'W</geoCoordinate>
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, 966 m, 12.vi.2005, leg. W.D. Shepard, EMEC 204676-204683 (8 ex. EMEC);
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<emphasis bold="true" pageId="72" pageNumber="73">Jinotega:</emphasis>
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roadside pool, Lago de
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<normalizedToken originalValue="Apanás">Apanas</normalizedToken>
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area, N Jinotega,
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<geoCoordinate degrees="13" direction="north" minutes="12.8" orientation="latitude" precision="92" value="13.213333">13°12.8'N</geoCoordinate>
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,
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<geoCoordinate degrees="85" direction="west" minutes="58.1" orientation="longitude" precision="92" value="-85.96833">85°58.1'W</geoCoordinate>
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, 966 m, 12.vi.2005, leg. C.B. Barr, EMEC 204673-204674 (2 ex. EMEC).
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<emphasis bold="true" pageId="72" pageNumber="73">U.S.A.:</emphasis>
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<emphasis bold="true" pageId="72" pageNumber="73">California:</emphasis>
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Riverside Co., Mecca, 15.viii.1924, EMEC 654698 (1 ex. EMEC);
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<emphasis bold="true" pageId="72" pageNumber="73">Texas:</emphasis>
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<normalizedToken originalValue="“Pinto”">"Pinto"</normalizedToken>
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, 7.vii.1938, leg. D. W. Craik (1 ex. KSEM).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="72" pageNumber="73" type="diagnosis">
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<paragraph pageId="72" pageNumber="73">Diagnosis.</paragraph>
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<paragraph pageId="72" pageNumber="73">
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Male (Fig.
|
||
<figureCitation captionStart="Figure 42" captionStartId="F42" captionText="Figure 42. Dineutus solitarius. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="72" pageNumber="73">42C-D</figureCitation>
|
||
): Size: 9.2-10.4 mm. Body form broadly oval; elytral apices regularly broadly rounded, with serrations and irregularities absent apically, elytra reticulation normally coarse and well impressed laterally, medially being replaced by fine microreticulation, elytral disc medially often with fine and weakly impressed punctures, striae very faintly present, most evident medially on elytral disc; profemora with small sub-apicoventral tooth atop profemoral carina; protibiae weakly subsinuate to club-shaped; mesotarsal claws (Fig.
|
||
<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Dineutus solitarius. 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="72" pageNumber="73">43C</figureCitation>
|
||
) with ventral margin straight, with weak medial expansion; venter darkly colored, usually black to very dark reddish brown, mesothoracic and metathoracic legs usually lighter in coloration, as well as apex of abdomen; Aedeagus (Fig.
|
||
<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Dineutus solitarius. 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="72" pageNumber="73">43A, B, D</figureCitation>
|
||
) median lobe in dorsal view just shorter than parameres, mildly parallel sided, weakly angled towards apex, acuminate in apical 1/5, apical median lobe angled towards acumination, lateral margins of acumination angled toward apex, apex very shortly rounded producing a strong point, in lateral view median lobe evenly shallowly curved dorsally, ventrally median lobe with diamond shaped sperm-groove, parameres in dorsal view weakly expanded laterally at apical 1/3, narrowly rounded apically.
|
||
</paragraph>
|
||
<paragraph pageId="72" pageNumber="73">
|
||
Female (Fig.
|
||
<figureCitation captionStart="Figure 42" captionStartId="F42" captionText="Figure 42. Dineutus solitarius. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="72" pageNumber="73">42A-B</figureCitation>
|
||
): Size: 9.1-10.2 mm. Body form regularly oval; elytral apices regularly broadly rounded, with serrations and irregularities absent apically, apicolateral sinuation absent, elytra reticulation course and well impressed laterally, medially being replaced by fine microreticulation, elytral disc medially often with fine and weakly impressed punctures, striae very faintly present, most evident medially on elytral disc; profemora without sub-apicoventral tooth; protibiae club-shaped; venter darkly colored, usually black to very dark brown, mesothoracic and metathoracic legs usually lighter in coloration, as well as apex of abdomen.
|
||
</paragraph>
|
||
<caption pageId="72" pageNumber="73" start="Figure 42" startId="F42">
|
||
<paragraph pageId="72" pageNumber="73">
|
||
<emphasis bold="true" pageId="72" pageNumber="73">Figure 42.</emphasis>
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="72" pageNumber="73">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<emphasis bold="true" pageId="72" pageNumber="73">A</emphasis>
|
||
♀ dorsal habitus
|
||
<emphasis bold="true" pageId="72" pageNumber="73">B</emphasis>
|
||
♀ ventral habitus
|
||
<emphasis bold="true" pageId="72" pageNumber="73">C</emphasis>
|
||
♂ dorsal habitus
|
||
<emphasis bold="true" pageId="72" pageNumber="73">D</emphasis>
|
||
♂ ventral habitus. All scale bars ≈ 2 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption pageId="72" pageNumber="73" start="Figure 43" startId="F43">
|
||
<paragraph pageId="72" pageNumber="73">
|
||
<emphasis bold="true" pageId="72" pageNumber="73">Figure 43.</emphasis>
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="72" pageNumber="73">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<emphasis bold="true" pageId="72" pageNumber="73">A</emphasis>
|
||
aedeagus dorsal view
|
||
<emphasis bold="true" pageId="72" pageNumber="73">B</emphasis>
|
||
aedeagus ventral view
|
||
<emphasis bold="true" pageId="72" pageNumber="73">C</emphasis>
|
||
♂ mesotarsal claws
|
||
<emphasis bold="true" pageId="72" pageNumber="73">D</emphasis>
|
||
aedeagus lateral view. Scale bar for
|
||
<emphasis bold="true" pageId="72" pageNumber="73">C</emphasis>
|
||
≈ 0.10 mm all others ≈ 1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="73" lastPageNumber="74" pageId="72" pageNumber="73" type="differential diagnosis">
|
||
<paragraph pageId="72" pageNumber="73">Differential diagnosis.</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">
|
||
<pageBreakToken pageId="73" pageNumber="74" start="start">Dineutus</pageBreakToken>
|
||
solitarius
|
||
</emphasis>
|
||
</taxonomicName>
|
||
is unique among all other North American
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus</emphasis>
|
||
</taxonomicName>
|
||
in being smaller in size (9.1-10.4 mm), with a broadly oval body form (Fig.
|
||
<figureCitation captionStart="Figure 42" captionStartId="F42" captionText="Figure 42. Dineutus solitarius. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="73" pageNumber="74">42C</figureCitation>
|
||
), having the elytral apices broadly rounded without serrations and/or irregularities, males with the profemoral sub-apical ventral tooth small and atop a carina, and by the form of the aedeagus (Fig.
|
||
<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Dineutus solitarius. 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="73" pageNumber="74">43A</figureCitation>
|
||
). The species most similar to
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
are
|
||
<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus carolinus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="carolinus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus carolinus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
. Both sexes of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
can be distinguished from
|
||
<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus carolinus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="carolinus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus carolinus</emphasis>
|
||
</taxonomicName>
|
||
in having the elytral apices broadly rounded without apical serrations and/or irregularities, as opposed to having the elytral apices narrowly rounded with serrations and/or irregularities present. The body form of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
is much more regularly oval as opposed to being more elongate overall in
|
||
<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus carolinus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="carolinus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus carolinus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
lacks a defined lateral marginal depression as seen in
|
||
<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus carolinus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="carolinus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus carolinus</emphasis>
|
||
</taxonomicName>
|
||
as a result of being more dorsoventrally convex.
|
||
</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">
|
||
Of the two species similar to
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
is more similar, in that both of these species have the elytral apices fairly broadly rounded and without apical serrations and/or irregularities present. Furthermore, the aedeagi of these two species are somewhat similar both being acuminate. In general both sexes of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
can be distinguished from
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
in being much more regularly rounded in body form than
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
, whose body form is more elongate oval. The pronotal shape of the two species differs fairly noticeably, in
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
the pronotum has the lateral borders much more obtusely angled posteriorly to anteriorly, and the posterior margin of the pronotum flatly meets the posterolateral corners of the pronotum, while in
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
the pronotum has the lateral borders more straightly angled posteriorly to anteriorly with the posterior margin being more sinuate.
|
||
</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">
|
||
Males of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
can further be removed from
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
in having a small profemoral sub-apicoventral tooth atop a carina, while in
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
the tooth is much more large and triangular. The aedeagi of these two species are similar in that both have an acuminate median lobe, however the general shape of the median lobe of the two aedeagi can be separated without difficulty. The median lob of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Dineutus solitarius. 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="73" pageNumber="74">43A</figureCitation>
|
||
) is much more parallel sided, being weakly narrowed towards the acumination and the acumination itself having its margins angled towards the apex, which is very narrowly rounded giving it a very pointed feel. In
|
||
<taxonomicName baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus emarginatus" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="emarginatus">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus emarginatus</emphasis>
|
||
</taxonomicName>
|
||
the median lobe (Fig.
|
||
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Dineutus longimanus cubensis. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="73" pageNumber="74">20A</figureCitation>
|
||
) is weakly constricted medially giving the lateral margins a slight sinuation, the apical margins of the median lobe are rounded towards the acumination, with the acumination having its lateral margins fairly straight, and the apex relatively more broadly rounded, giving it a more rounded pointed shape, as opposed to narrowly pointed as in
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">
|
||
The females of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="73" pageNumber="74">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
differ primarily in the general differences between the two species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="73" pageNumber="74" type="distribution">
|
||
<paragraph pageId="73" pageNumber="74">Distribution</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">
|
||
<emphasis bold="true" pageId="73" pageNumber="74">
|
||
(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="73" pageNumber="74">54B</figureCitation>
|
||
).
|
||
</emphasis>
|
||
From extreme southern United States, Texas ("Pinto Texas" 1938 [KSEM]) and California (
|
||
<bibRefCitation author="Leech, HB" journalOrPublisher="The Pan-Pacific Entomologist" pageId="93" pageNumber="94" refId="B63" refString="Leech, HB, 1940. Dineutus in California. (Coleoptera, Gyrinidae). The Pan-Pacific Entomologist 16, 74 pp." title="Dineutus in California. (Coleoptera, Gyrinidae)." volume="16" year="1940">Leech 1940</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Leech, HB" journalOrPublisher="Proceedings of the California Academy of Science" pageId="93" pageNumber="94" pagination="375 - 484" refId="B64" refString="Leech, HB, 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 11. Coleoptera: Haliplidae, Dytiscidae, Gyrinidae, Hydrophilidae, Limnebiidae. Proceedings of the California Academy of Science 24: 375 - 484" title="Contributions toward a knowledge of the insect fauna of Lower California. No. 11. Coleoptera: Haliplidae, Dytiscidae, Gyrinidae, Hydrophilidae, Limnebiidae." volume="24" year="1948">Leech 1948</bibRefCitation>
|
||
), throughout Mexico (
|
||
<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>
|
||
) and Central America to western Costa Rica. The first author visited the only known California locality, the city of Mecca, in Riverside County, in southwestern California, in the summer of 2012, in an attempt to recollect this species. The area had changed quite a bit with much of the duck ponds in the area having dried up and an increased agricultural presence was evident.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="73" pageNumber="74" type="habitat">
|
||
<paragraph pageId="73" pageNumber="74">Habitat.</paragraph>
|
||
<paragraph pageId="73" pageNumber="74">This species appears to be lotic. Several locality labels list "pools in stream". In La Selva Negra, Nicaragua, specimens were collected from a pool within a stream by the second author.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="74" pageNumber="75" type="discussion">
|
||
<paragraph pageId="74" pageNumber="75">
|
||
<pageBreakToken pageId="74" pageNumber="75" start="start">Discussion</pageBreakToken>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="74" pageNumber="75">
|
||
It should be noted that
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="74" pageNumber="75">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
is primarily a Mexican and Central American species, only just barely reaching the United States. Historical records indicate it was at one point found in California (
|
||
<bibRefCitation author="Leech, HB" journalOrPublisher="The Pan-Pacific Entomologist" pageId="93" pageNumber="94" refId="B63" refString="Leech, HB, 1940. Dineutus in California. (Coleoptera, Gyrinidae). The Pan-Pacific Entomologist 16, 74 pp." title="Dineutus in California. (Coleoptera, Gyrinidae)." volume="16" year="1940">Leech 1940</bibRefCitation>
|
||
) and Texas.
|
||
</paragraph>
|
||
<paragraph pageId="74" pageNumber="75">
|
||
There is some noticeable variation in the elytral sculpturing among populations of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="74" pageNumber="75">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
. Specimens from Sierra de Zapotan, Nayarit, Mexico (UCRC) have the punctures of the elytra much more shallowly and weakly impressed, making them much larger and
|
||
<normalizedToken originalValue="“dimply”">"dimply"</normalizedToken>
|
||
in appearance (Fig.
|
||
<figureCitation captionStart="Figure 46" captionStartId="F46" captionText="Figure 46. Variation in specimens from Sierra de Zapotan, Narayit, Mexico. A ♂ Dineutus sublineatus dorsal habitus B ♂ Dineutus solitarius male dorsal habitus. ♀ Dineutus sublineatus from Salama Guatemala C dorsal habitus. All scale bars ≈ 2 mm." pageId="74" pageNumber="75">46B</figureCitation>
|
||
). This is most noticeable medially on the elytra discs near the sutural region, where the strong lateral reticulation is replaced by the fine mesh microreticulation. Interestingly a similar situation is seen in specimens from the same area of
|
||
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="sublineatus">
|
||
<emphasis italics="true" pageId="74" pageNumber="75">Dineutus sublineatus</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 46" captionStartId="F46" captionText="Figure 46. Variation in specimens from Sierra de Zapotan, Narayit, Mexico. A ♂ Dineutus sublineatus dorsal habitus B ♂ Dineutus solitarius male dorsal habitus. ♀ Dineutus sublineatus from Salama Guatemala C dorsal habitus. All scale bars ≈ 2 mm." pageId="74" pageNumber="75">46A</figureCitation>
|
||
). These specimens with the dimply punctation make it apparent that the fine weakly impressed punctation seen normally medially on the elytral discs is also present laterally, but is obscured by the strong reticulation of that area, and is visible medially and suturally due to the fine microreticulation of that area. Specimens from Costa Rica (MSBA) also show variation in elytral sculpturing, having the reticulation of the elytra composed of much finer meshes. The lateral meshes are still stronger but not nearly as coarse as in other populations. Specimens of
|
||
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="solitarius">
|
||
<emphasis italics="true" pageId="74" pageNumber="75">Dineutus solitarius</emphasis>
|
||
</taxonomicName>
|
||
from Oaxaca, Mexico, near Arriba, (FSCA) show variation in body form. The outline of the body is much more broadly oval in these specimens. There is also a much greater dorsoventral convexity in the scutellar region, especially evident in lateral view. It should be noted that although there are these variations among populations, the aedeagi of males from each of these populations are not noticeably different or variable in any significant manner.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="74" pageNumber="75" type="type designation">
|
||
<paragraph pageId="74" pageNumber="75">Type designation.</paragraph>
|
||
<paragraph pageId="74" pageNumber="75">
|
||
Similar to the situation with
|
||
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes metallicus" order="Coleoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="metallicus">
|
||
<emphasis italics="true" pageId="74" pageNumber="75">Dineutes metallicus</emphasis>
|
||
</taxonomicName>
|
||
<normalizedToken originalValue="Aubé">Aube</normalizedToken>
|
||
, the only specimen with a date and
|
||
<normalizedToken originalValue="Aubé’s">Aube's</normalizedToken>
|
||
handwriting for the determination label was selected as the lectotype (Fig.
|
||
<figureCitation captionStart="Figure 51" captionStartId="F51" captionText="Figure 51. Type specimens A Dineutus analis Regimbart, 1882 lectotype and labels B Dineutus discolor Aube, 1838 lectotype and labels C Dineutus solitarius Aube, 1838 lectotype and labels D Dineutus metallicus Aube, 1838 lectotype and labels E Gyrinus longimanus Olivier, 1795 lectotype and labels F Dineutus truncatus mexicanus Ochs, 1925 holotype and labels." pageId="74" pageNumber="75">51C</figureCitation>
|
||
). The other specimens in the MNHN collection lacked dates and/or
|
||
<normalizedToken originalValue="Aubé’s">Aube's</normalizedToken>
|
||
handwriting, therefore we did not designate paralectotypes.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |