154 lines
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154 lines
17 KiB
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<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="A1EB0E03DF07B9307A140ECC425C96A9" 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 serrulatus LeConte 1868" docType="treatment" docVersion="5" id="FC4DC947FF97FF86190BFFD8B82CAB56" lastPageNumber="67" masterDocId="FC4DC947FF97FF86190BFFD8B82CAB56" masterDocTitle="The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)" masterLastPageNumber="135" masterPageNumber="1" pageNumber="66" 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="152057923" LSID="urn:lsid:plazi:treatment:A1EB0E03DF07B9307A140ECC425C96A9" httpUri="http://treatment.plazi.org/id/A1EB0E03DF07B9307A140ECC425C96A9" lastPageId="66" lastPageNumber="67" pageId="65" pageNumber="66">
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<subSubSection pageId="65" pageNumber="66" type="nomenclature">
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<paragraph pageId="65" pageNumber="66">
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<taxonomicName LSID="A1EB0E03-DF07-B930-7A14-0ECC425C96A9" authority="LeConte, 1868" authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus" order="Coleoptera" pageId="65" pageNumber="66" phylum="Arthropoda" rank="species" species="serrulatus">Dineutus serrulatus LeConte, 1868</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="65" pageNumber="66" type="differential diagnosis">
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<paragraph pageId="65" pageNumber="66">Differential diagnosis.</paragraph>
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<paragraph pageId="65" pageNumber="66">Overall this species can be diagnosed in having elytral apices that are serrulate and with apicolateral sinuation present in both sexes, red colored venters, males with a profemoral sub-apicoventral tooth, and in the form of the male aedeagus. A key to the subspecies is provided and each subspecies is treated individually.</paragraph>
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</subSubSection>
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<subSubSection pageId="66" pageNumber="67" type="distribution">
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<paragraph pageId="66" pageNumber="67">
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<pageBreakToken pageId="66" pageNumber="67" start="start">Distribution</pageBreakToken>
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and subspecies.
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</paragraph>
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<paragraph pageId="66" pageNumber="67">
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This species is wide-ranging, highly variable among populations (Fig.
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<figureCitation captionStart="Figure 39" captionStartId="F39" captionText="Figure 39. Dineutus serrulatus variation in males. Dineutus serrulatus serrulatus A dorsal habitus B ventral habitus C aedeagus dorsal view; Dineutus serrulatus analis Liberty Co. Florida D dorsal habitus E ventral habitus F aedeagus dorsal view; Dineutus serrulatus analis Tennessee G dorsal habitus H ventral habitus I aedeagus dorsal view; Dineutus serrulatus analis Kansas J dorsal habitus K ventral habitus L aedeagus. Scale bars for C, F, I, L ≈ 1 mm all others ≈ 2 mm." pageId="66" pageNumber="67">39</figureCitation>
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), and has been divided into two subspecies:
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<taxonomicName authority="serrulatus" authorityName="serrulatus LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. serrulatus" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="serrulatus">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus serrulatus</emphasis>
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</taxonomicName>
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and
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<taxonomicName authorityName="Regimbart" authorityYear="1883" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. analis" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="analis">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus analis</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Wood, FE" journalOrPublisher="Proceedings of the United States National Museum" pageId="97" pageNumber="98" pagination="1 - 9" publicationUrl="10.5479/si.00963801.124-3646.1" refId="B131" refString="Wood, FE, 1968. The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera). Proceedings of the United States National Museum 124: 1 - 9, DOI: 10.5479/si.00963801.124-3646.1" title="The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera)." url="10.5479/si.00963801.124-3646.1" volume="124" year="1968">Wood 1968</bibRefCitation>
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). Of these subspecies
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<taxonomicName authority="serrulatus" authorityName="serrulatus LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. serrulatus" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="serrulatus">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus serrulatus</emphasis>
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</taxonomicName>
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is more consistent in its characters, while those of
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<taxonomicName authorityName="Regimbart" authorityYear="1883" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. analis" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="analis">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus analis</emphasis>
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</taxonomicName>
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are much more variable causing difficulties in separating the two.
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<taxonomicName authorityName="Regimbart" authorityYear="1883" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. analis" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="analis">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus analis</emphasis>
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</taxonomicName>
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was originally described as a separate species by
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<normalizedToken originalValue="Régimbart">Regimbart</normalizedToken>
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in 1882, but was relegated to a subspecies of
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<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="species" species="serrulatus">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus</emphasis>
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</taxonomicName>
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LeConte by
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<bibRefCitation author="Wood, FE" journalOrPublisher="Proceedings of the United States National Museum" pageId="97" pageNumber="98" pagination="1 - 9" publicationUrl="10.5479/si.00963801.124-3646.1" refId="B131" refString="Wood, FE, 1968. The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera). Proceedings of the United States National Museum 124: 1 - 9, DOI: 10.5479/si.00963801.124-3646.1" title="The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera)." url="10.5479/si.00963801.124-3646.1" volume="124" year="1968">Wood (1968)</bibRefCitation>
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. Recent papers have again treated
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<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes analis" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="species" species="analis">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutes analis</emphasis>
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</taxonomicName>
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as a separate valid species (e.g.
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<bibRefCitation author="Ciegler, JC" journalOrPublisher="Clemson University Public Service Pub." pageId="91" pageNumber="92" refId="B13" refString="Ciegler, JC, Morse, JC, Wheeler, AG, Activities, CUPS, 2003. Water beetles of South Carolina: (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae, Hydrophilidae, Hydraenidae, Scirtidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae, Ptilodactylidae, and Chelonariidae). Clemson University Public Service Pub." title="Water beetles of South Carolina: (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae, Hydrophilidae, Hydraenidae, Scirtidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae, Ptilodactylidae, and Chelonariidae)" year="2003">Ciegler et al 2003</bibRefCitation>
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;
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<bibRefCitation author="Realzola, E" journalOrPublisher="The Coleopterists Bulletin" pageId="95" pageNumber="96" pagination="495 - 502" publicationUrl="10.1649/0010-065X(2007)61[495:COGAIT]2.0.CO;2" refId="B101" refString="Realzola, E, Cook, JL, Cook, TJ, Clopton, RE, 2007. Composition of gyrinid aggregations in the East Texas Primitive Big Thicket (Coleoptera: Gyrinidae). The Coleopterists Bulletin 61: 495 - 502, DOI: 10.1649/0010-065X(2007)61[495:COGAIT]2.0.CO;2" title="Composition of gyrinid aggregations in the East Texas Primitive Big Thicket (Coleoptera: Gyrinidae)." url="10.1649/0010-065X(2007)61[495:COGAIT]2.0.CO;2" volume="61" year="2007">Realzola et al. 2007</bibRefCitation>
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). For this study the authors found no single discrete character that could reliably separate the taxa. Although dorsal coloration can usually be used to separate the two subspecies, populations from northern Florida where the two subspecies meet, show intermediate dorsal coloration, being medially polished black, but laterally bronzy green. Furthermore the aedeagi, of the two subspecies are very similar, with only minor differences that appear variable across the entire range of this species. Another useful character for delimiting similar species, the mesotarsal claws, are also similar showing only minor variation. For these reasons we continue to follow
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<bibRefCitation author="Wood, FE" journalOrPublisher="Proceedings of the United States National Museum" pageId="97" pageNumber="98" pagination="1 - 9" publicationUrl="10.5479/si.00963801.124-3646.1" refId="B131" refString="Wood, FE, 1968. The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera). Proceedings of the United States National Museum 124: 1 - 9, DOI: 10.5479/si.00963801.124-3646.1" title="The taxonomic status of Dineutus serrulatus and Dineutus analis in North America (Gyrinidae: Coleoptera)." url="10.5479/si.00963801.124-3646.1" volume="124" year="1968">Wood (1968)</bibRefCitation>
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in treating these two taxa as subspecies.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="66" pageNumber="67" type="key to the subspecies of dineutus serrulatus">
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<paragraph pageId="66" pageNumber="67">
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Key to the subspecies of
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<taxonomicName authorityName="LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="species" species="serrulatus">
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<emphasis italics="true" pageId="66" pageNumber="67">Dineutus serrulatus</emphasis>
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</taxonomicName>
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</paragraph>
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<paragraph pageId="66" pageNumber="67">
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<table inLine="true" pageId="66" pageNumber="67">
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<tr pageId="66" pageNumber="67">
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">1</td>
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">
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Body form more broadly oval, especially evident in males (Fig.
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<figureCitation captionStart="Figure 40" captionStartId="F40" captionText="Figure 40. Dineutus serrulatus serrulatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="66" pageNumber="67">40C</figureCitation>
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); male elytra with apices often flatly rounded/subtruncate, rarely with sutural angle produced to a point, apicolateral sinuation strongly present; female elytral apices flatly rounded and commonly with sutural angle produced, apicolateral sinuation less strongly present; dorsal surface with fine reticulation giving the dorsum a more polished smooth appearance, often very darkly colored, black to dark greenish black; profemoral sub-apicoventral tooth of male large and highly acute (Fig.
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<figureCitation captionStart="Figure 40" captionStartId="F40" captionText="Figure 40. Dineutus serrulatus serrulatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="66" pageNumber="67">40D</figureCitation>
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); venter always red in coloration. Distribution: Alabama, Georgia, Florida, and the Carolinas
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</td>
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">
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<taxonomicName authority="serrulatus" authorityName="serrulatus LeConte" authorityYear="1868" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. serrulatus" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="serrulatus">
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<emphasis bold="true" italics="true" pageId="66" pageNumber="67">Dineutus serrulatus serrulatus</emphasis>
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</taxonomicName>
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</td>
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</tr>
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<tr pageId="66" pageNumber="67">
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">-</td>
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">
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Body form more parallel sided, less broadly oval, even in males (Fig.
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<figureCitation captionStart="Figure 40" captionStartId="F40" captionText="Figure 40. Dineutus serrulatus serrulatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="66" pageNumber="67">40C</figureCitation>
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); males with elytral apices variable from flatly rounded/subtruncate, but often with sutural angle produced, apicolateral sinuation present, but less deeply sinuate; female elytral apices flatly rounded to angled towards sutural production; sutural production commonly present, rarely absent; dorsal surface with reticulation strongly evident and often coarser than nominate form, giving dorsal surface a bronzy appearance, not polished black, often light bronzed to greenish bronzed in color; profemoral sub-apicoventral tooth often smaller than nominate form (Fig.
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<figureCitation captionStart="Figure 40" captionStartId="F40" captionText="Figure 40. Dineutus serrulatus serrulatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="66" pageNumber="67">40D</figureCitation>
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), and more variable; venter often light colored usually red, but northern and western populations with darkly colored venter, dark red to blackish red in coloration. Distribution: From western Alabama north to Indiana, west to southwestern Kansas, south to Texas and possibly Mexico
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</td>
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<td colspan="1" pageId="66" pageNumber="67" rowspan="1">
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<taxonomicName authorityName="Regimbart" authorityYear="1883" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus serrulatus subsp. analis" order="Coleoptera" pageId="66" pageNumber="67" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="analis">
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<emphasis bold="true" italics="true" pageId="66" pageNumber="67">Dineutus serrulatus analis</emphasis>
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</taxonomicName>
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</td>
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</tr>
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</table>
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |