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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. &amp; Miller, Kelly B." docDate="2015" docId="E5E24CADFD7344849548314958CD5A43" 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 sublineatus" docType="treatment" docVersion="5" id="FC4DC947FF97FF86190BFFD8B82CAB56" lastPageNumber="82" masterDocId="FC4DC947FF97FF86190BFFD8B82CAB56" masterDocTitle="The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)" masterLastPageNumber="135" masterPageNumber="1" pageNumber="75" updateTime="1668159852297" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gustafson, Grey T.</mods:namePart>
<mods:affiliation>Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA</mods:affiliation>
<mods:nameIdentifier type="email">gtgustafson@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Miller, Kelly B.</mods:namePart>
<mods:affiliation>Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2015</mods:date>
<mods:detail type="pubDate">
<mods:number>2015-01-23</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>476</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>135</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.476.8630</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.476.8630</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-476-1</mods:identifier>
<mods:identifier type="ZooBank">086D71AF8A294F028559C2E0456B5C5B</mods:identifier>
<mods:identifier type="Pensoft-UUID">FC4DC947FF97FF86190BFFD8B82CAB56</mods:identifier>
<mods:identifier type="Zenodo-Dep">578702</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="152057918" LSID="urn:lsid:plazi:treatment:E5E24CADFD7344849548314958CD5A43" httpUri="http://treatment.plazi.org/id/E5E24CADFD7344849548314958CD5A43" lastPageId="81" lastPageNumber="82" pageId="74" pageNumber="75">
<subSubSection pageId="74" pageNumber="75" type="nomenclature">
<paragraph pageId="74" pageNumber="75">
<taxonomicName LSID="E5E24CAD-FD73-4484-9548-314958CD5A43" authority="(Chevrolat, 1834)" 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">Dineutus sublineatus (Chevrolat, 1834)</taxonomicName>
<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Dineutus sublineatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="74" pageNumber="75">Figures 44</figureCitation>
<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Dineutus sublineatus. 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="74" pageNumber="75">, 45</figureCitation>
<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">, 46</figureCitation>
<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="74" pageNumber="75">, 54</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="75" pageNumber="76" type="reference_group">
<paragraph pageId="75" pageNumber="76">
<taxonomicName class="Insecta" family="Gyrinidae" genus="Gyrinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gyrinus sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<pageBreakToken pageId="75" pageNumber="76" start="start">Gyrinus</pageBreakToken>
sublineatus
</taxonomicName>
<bibRefCitation author="Chevrolat, A" journalOrPublisher="G. Silbermann, Strasbourg" pageId="91" pageNumber="92" pagination="1 - 192" refId="B12" refString="Chevrolat, A, 1834-1835 1834 1835. Coleopteres du Mexique. G. Silbermann, Strasbourg: 1 - 192" title="Coleopteres du Mexique" year="1834 - 1835">Chevrolat 1834</bibRefCitation>
: 3,
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutes sublineatus</emphasis>
</taxonomicName>
:
<bibRefCitation author="Brulle, MA" journalOrPublisher="Pillot, Paris" pageId="91" pageNumber="92" refId="B11" refString="Brulle, MA, 1835. Histoire Naturelle des Insectes, Vol. 5. Coleopteres, Vol. 2. F.D. Pillot, Paris" title="Histoire Naturelle des Insectes, Vol. 5. Coleopteres, Vol. 2. F. D." year="1835">
<normalizedToken originalValue="Brullé">Brulle</normalizedToken>
1835
</bibRefCitation>
: 240,
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Dineutes integer" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="integer">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutes integer</emphasis>
</taxonomicName>
LeConte 1854: 221 [synonymy by
<bibRefCitation author="LeConte, JL" journalOrPublisher="Proceedings of the Academy of Natural Sciences of Philadelphia" pageId="93" pageNumber="94" pagination="335 - 390" refId="B58" refString="LeConte, JL, 1861. Notes on the Coleopterous fauna of Lower California. Proceedings of the Academy of Natural Sciences of Philadelphia 13: 335 - 390" title="Notes on the Coleopterous fauna of Lower California." volume="13" year="1861">LeConte 1861</bibRefCitation>
],
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Dineutus) sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus" subGenus="Dineutus">Dineutus (Dineutus) sublineatus</taxonomicName>
: Ochs 1926: 138,
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Protodineutus) sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus" subGenus="Protodineutus">Dineutus (Protodineutus) sublineatus</taxonomicName>
:
<bibRefCitation author="Guignot, F" journalOrPublisher="Bulletin Mensuel de la Societe Linneenne de Lyon" pageId="91" pageNumber="92" pagination="124 - 127" refId="B36" refString="Guignot, F, 1950. Sur la systematique des Dineutus (Col. Gyrinidae). Bulletin Mensuel de la Societe Linneenne de Lyon 19: 124 - 127" title="Sur la systematique des Dineutus (Col. Gyrinidae)." volume="19" year="1950">Guignot 1950</bibRefCitation>
: 126,
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutus sublineatus</emphasis>
</taxonomicName>
:
<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>
: 81,
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus (Cyclinus) sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus" subGenus="Cyclinus">Dineutus (Cyclinus) sublineatus</taxonomicName>
:
<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>
: 106,
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutus sublineatus</emphasis>
</taxonomicName>
:
<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">
<normalizedToken originalValue="Arce-Pérez">Arce-Perez</normalizedToken>
and Roughley 1999
</bibRefCitation>
: 84.
</paragraph>
</subSubSection>
<subSubSection pageId="75" pageNumber="76" type="type locality">
<paragraph pageId="75" pageNumber="76">Type locality.</paragraph>
<paragraph pageId="75" pageNumber="76">Mexico, Bocadelmonte.</paragraph>
</subSubSection>
<subSubSection pageId="75" pageNumber="76" type="specimens examined">
<paragraph pageId="75" pageNumber="76">Specimens examined.</paragraph>
<paragraph pageId="75" pageNumber="76">
<emphasis bold="true" pageId="75" pageNumber="76">326</emphasis>
</paragraph>
</subSubSection>
<subSubSection lastPageId="76" lastPageNumber="77" pageId="75" pageNumber="76" type="type material examined">
<paragraph pageId="75" pageNumber="76">Type material examined.</paragraph>
<paragraph pageId="75" pageNumber="76">
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutus sublineatus</emphasis>
</taxonomicName>
: not examined. The first author was unable to locate the syntype of
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="75" pageNumber="76" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="75" pageNumber="76">Dineutus sublineatus</emphasis>
</taxonomicName>
Chevrolat after searching the MNHN with the assistance of A. Mantilleri.
</paragraph>
<paragraph pageId="76" pageNumber="77">
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus integer" order="Coleoptera" pageId="76" pageNumber="77" phylum="Arthropoda" rank="species" species="integer">
<emphasis italics="true" pageId="76" pageNumber="77">
<pageBreakToken pageId="76" pageNumber="77" start="start">Dineutus</pageBreakToken>
integer
</emphasis>
</taxonomicName>
: syntype (♀ pinned) &quot;Type/ 6092 [red label, Type typed in black ink, 6092 handwritten in black ink]//
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus integer" order="Coleoptera" pageId="76" pageNumber="77" phylum="Arthropoda" rank="species" species="integer">Dineutus integer</taxonomicName>
/ Webb Lec./ Copper Mines [white label, handwritten in black ink, handwriting appears to be
<normalizedToken originalValue="LeContes">LeConte's</normalizedToken>
]//
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="sublineatus" order="Coleoptera" pageId="76" pageNumber="77" phylum="Arthropoda" rank="species" species="sublineatus">sublineatus</taxonomicName>
2 [white label, handwritten in black ink, handwriting unknown]//&quot; deposited in MCZ.
</paragraph>
</subSubSection>
<subSubSection lastPageId="80" lastPageNumber="81" pageId="76" pageNumber="77" type="material examined">
<paragraph pageId="76" pageNumber="77">Material examined.</paragraph>
<paragraph lastPageId="80" lastPageNumber="81" pageId="76" pageNumber="77">
<emphasis bold="true" pageId="76" pageNumber="77">EL SALVADOR:</emphasis>
<emphasis bold="true" pageId="76" pageNumber="77">Chalatenango:</emphasis>
San Jose del Sacare, 15.iii.1927, leg. R.A. Stirton (2 ex. KSEM).
<emphasis bold="true" pageId="76" pageNumber="77">GUATEMALA:</emphasis>
<emphasis bold="true" pageId="76" pageNumber="77">Baja Verapaz:</emphasis>
15 km N Salama, 5.vi.1991, leg. J.E. Wappes (1 ex. FSCA).
<emphasis bold="true" pageId="76" pageNumber="77">HONDURAS:</emphasis>
<emphasis bold="true" pageId="76" pageNumber="77">Comayagua:</emphasis>
Malootal Minas de Oro, v.1932, leg. J.B. Edwards (1 ex. KSEM).
<emphasis bold="true" pageId="76" pageNumber="77">MEXICO:</emphasis>
<emphasis bold="true" pageId="76" pageNumber="77">Aguascalientes:</emphasis>
Sierra Fria ca. 40 mi SW Rinconde Romos, 2438 m, 11.iii.1953, leg. I.J. Centrall, #55 (2 ex. FSCA);
<emphasis bold="true" pageId="76" pageNumber="77">Baja California Sur:</emphasis>
<normalizedToken originalValue="Bahía">Bahia</normalizedToken>
<normalizedToken originalValue="Concepción">Concepcion</normalizedToken>
,
<normalizedToken originalValue="“Lanito”">&quot;Lanito&quot;</normalizedToken>
, 15 m, 16.iv.1968, leg. M.E. Irwin (1 ex. UCRC); Sierra Laguna, 17 air mi ENE Todos Santos, 1829 m, 12-18.xii.1979 EMEC 204906-204907 (2 ex. EMEC); Sierra Laguna, 17 mi ENE Todos Santos, 12-18.xii.1979, leg. J. Doyen, W. Tschinkel, EMEC 204770-204771; EMEC 204793-204799; EMC 204811-204815; EMEC 204817-204823; EMEC 204827-204849; EMEC 204860 (47 ex. EMEC); Arroya Posa ca. 10 mi W Loreto, 183 m, 6.vi.1978, leg. C.M. Murvosh &amp; R.K. Allen, EMEC 654702-654710 (9 ex. EMEC); 9 mi WSW Loreto, Arroyo Las Parras, 207 m, 10.vii.2004, leg. W.D. Shepard, EMEC 204602-204619 (18 ex. EMEC); 9 mi SW Loreto, Arroyo Las Parras, 250 m, 20.vii.2004, leg. W.D. Shepard, EMEC 204620-204644 (25 ex. EMEC); 0.6mi S San Javier, 387 m, 20.vii.2004, leg. W.D. Shepard, EMEC 204668-204669 (2 ex. EMEC); Ram di Naran Rd., 10-28k W Rt 1, 28-31.viii.1994, leg. J.E. Wappes (1 ex. FSCA); 4.3 km E La Burrera, 550 m, 11-14.x.1978, leg. Dezier &amp; Westcott, canyon-stream (1 ex. FSCA);
<emphasis bold="true" pageId="76" pageNumber="77">Chihuahua:</emphasis>
3 mi NW Chihuahua, 20.viii.1952, leg. J.D. Lattin, S. Weitsman, EMEC 204861 (1 ex. EMEC); 15 mi E Cuauhtemoc, Black &amp; White lights, 2012 m, 11.vii.1964, leg. J.A. Chemsak &amp; J. Powell, EMEC 204916 (1 ex. EMEC); 13 mi E Cuauhtamoc, Black &amp; White lights, 2012 m, 11.vii.1964, leg. J.A. Chemsak &amp; J. Powell, EMEC 204825 (1 ex. EMEC); Hidalgo, 25 mi W Del Parral, Black &amp; White lights, 2073 m, 15.vii.1964, leg. J.A. Chemsak &amp; J. Powell, EMEC 204904 (1 ex. EMEC); Hidalgo, 25 mi W Parral, Black &amp; White lights, 2073 m, 15.vii.1964, leg. J.A. Chemsak &amp; J. Powell, EMEC 204824 (1 ex. EMEC); Chihuahua, 1524 m, 4.ix.1963, leg. H.V. Weems Jr., collected at light (1 ex. FSCA);
<emphasis bold="true" pageId="76" pageNumber="77">Chiapas:</emphasis>
El Zapotal, 2 mi S Tuxtla Gutierrez, 15.vii.1956, leg. J.W. MacSwain, D.D. Linsdale, EMEC 204888; EMEC 204892 (2 ex. EMEC); El Chorreodero, 600 m, 15.v.1991, leg. J.D. McCarty, EMEC 204645 (1 ex. EMEC); Simojovel, 1-16.viii.1958, leg. J.A. Chemsak, EMEC 204759; EMEC 204909 (2 ex. EMEC);
<emphasis bold="true" pageId="76" pageNumber="77">Coahuila:</emphasis>
1 mi SE Saltillo, at blacklight, 23-26.ix.1976, leg. J.A. Chemsak &amp; J.A. Powell, EMEC 204792 (1 ex. EMEC);
<emphasis bold="true" pageId="76" pageNumber="77">Durango:</emphasis>
Nombre de Dios, 25.vi.1952, leg. E.E. Gilbert, C.D. MacNeil, EMEC 204859; EMEC 204911-204915 (5 ex. EMEC); 6.3 mi N Nombre de Dios, 1829 m, 25.vi.1952, leg. R.F. Smith, EMEC 204910 (1 ex. EMEC);
<emphasis bold="true" pageId="76" pageNumber="77">Guerrero:</emphasis>
Mochitlan, Acahuizotla, Bosque tropical bajo caducifolio, 750 m, 11.vii.1986, leg. L. Delgado (1 ex. FSCA); Zumpango del Rio, 2.xi.1943, leg. E.K. Waering (1 ex. FSCA);
<emphasis bold="true" pageId="76" pageNumber="77">Jalisco:</emphasis>
Puerto Los Mazos, 9mi SW Autlan, 27.viii.1970, leg. M.S. &amp; J.S. Wesbauer, EMEC 204776; EMEC 204780-204785 (7 ex. EMEC); 6 mi W Chapala, 30.vi.1963, leg. J. Doyen, EMEC 204790; EMEC 204787-204788 (3 ex. EMEC);
<pageBreakToken pageId="77" pageNumber="78" start="start">Rio</pageBreakToken>
de Tepospisaloya, ca. 6 km N Union de Tula, 9.2 km W
<normalizedToken originalValue="Tacotán">Tacotan</normalizedToken>
,
<geoCoordinate degrees="20" direction="north" minutes="03.86" orientation="latitude" precision="9" value="20.064333">20°03.86'N</geoCoordinate>
,
<geoCoordinate degrees="104" direction="west" minutes="20.91" orientation="longitude" precision="9" value="-104.3485">104°20.91'W</geoCoordinate>
, 381 m, 10.i.2005, leg. C.B. Barr, EMEC 654701 (1 ex. EMEC);
<emphasis bold="true" pageId="77" pageNumber="78">
<normalizedToken originalValue="México">Mexico</normalizedToken>
:
</emphasis>
NE of Temescaltepec, Canubi a Chichotla, 2027 m, 23.iv.2004, leg. W.D.
<pageBreakToken pageId="78" pageNumber="79" start="start">Shepard</pageBreakToken>
, EMEC 204600-204601 (2 ex. EMEC);
<emphasis bold="true" pageId="78" pageNumber="79">
<normalizedToken originalValue="Michoacán">Michoacan</normalizedToken>
:
</emphasis>
26.7 km N La Huacana, 18.vii.1989, leg. R. Brooks, A. Roig, (1 ex. KSEM);
<emphasis bold="true" pageId="78" pageNumber="79">Morelos:</emphasis>
Alpuyeca, 3.vii.1951, leg. P.D. Hurd, EMEC 204757 (1 ex. EMEC);
<emphasis bold="true" pageId="78" pageNumber="79">
Nuevo
<normalizedToken originalValue="León">Leon</normalizedToken>
:
</emphasis>
15 mi W Linares, 27.viii.1969, leg. J. Haddock, J.T. Doyen, EMEC 204774-204775 (2 ex. EMEC); 4 mi W of El Cercado, 6.vi.1951, leg. P.D. Hurd, EMEC 204758 (1 ex. EMEC); 4 mi S of Monterrey nr Siesta Motel, 6.vii.1963, leg. R.H. Arnett Jr., E.R. VanTassell, Lot No. V-56 (1 ex. FSCA); same as previous except: 7.vii.1963, Lot No. V-58 (8 ex. FSCA); 3.9 km NE Iturbide, ex: stream, 1410 m, 24.iii.1991, leg. Brooks, Leschen, #62 (1 ex. KSEM); 37 km SW Linares, 4.8 km S on Bosque Esquela Rd., ex:pool, 1545 m, 20.iii.1991, leg. Brooks, Leschen, #13 (1 ex. KSEM); 10 mi W of Cola del Caballo Falls, 24.xii.1972, leg. J.C. Schuster (2 ex. FSCA);
<emphasis bold="true" pageId="78" pageNumber="79">Nayarit:</emphasis>
7mi N Tetitlan, 14.vi.1962, leg. D.H. Janzen, EMEC 204746-204751; EMEC 204754-204755; EMEC 204767; EMEC 204850-204852; EMEC 204854-204855; EMEC 204862-204865; EMEC 204869-204880; EMEC 204882-204883; EMEC 204885-204886; EMEC 204898; EMEC 204922-204924 (38 ex. EMEC); La Mesa de Nayar, 19.vii.1955, leg. B. Malkin, EMEC 204867-204868; EMEC 204887; EMEC 204889-204891; EMEC 204893; EMEC 204895-204896; EMEC 204899-204905; EMEC 204914 (16 ex. EMEC); Sierra de Zapotan, iii.1943, leg. E. Paredes, Pool in stream (3 ex. FSCA); Sierra Zapotan, 1300 m, iii.1943, leg. E. Paredes (2 ex. UCRC); 24 mi SE Tepic, 1045 m, 22.vi.1968, leg. A.R. Hardy, L. Espinosa, J.P. Abrayaya (1 ex. UCRC);
<emphasis bold="true" pageId="78" pageNumber="79">Oaxaca:</emphasis>
4 mi W Tehuantepec, 21.vii.1952, leg. E.E. Gilbert, C.D. MacNeil, EMEC 204763-204766 (4 ex. EMEC); Oaxaca, ix.1957 (1 ex. FSCA); same as previous except: 28.ix.1957 (1 ex. FSCA); same as previous except: 29.ix.1957 (4 ex. FSCA); 33 mi W of Tehuantepec, 762-914 m, 22.viii.1963, leg. H.V. Weems Jr., in pool in mt. stream (12 ex. FSCA);
<emphasis bold="true" pageId="78" pageNumber="79">Puebla:</emphasis>
11 mi SE Acatlan, 10.vii.1952, leg. E.E. Gilbert, C.D. MacNeil, EMEC 204760; EMEC 204762 (2 ex. EMEC); 45 mi N Acatan, 30.vii.1963, leg. J. Doyen, EMEC 204789; EMEC 204791 (2 ex. EMEC); 3 mi NW Petlalcingo, 1402 m, 29.viii.1972, leg. Byers &amp; Thornhill (1 ex. KSEM);
<emphasis bold="true" pageId="78" pageNumber="79">Sinaloa:</emphasis>
21 mi E Ville Union, Black &amp; White lights, 91 m, 25.vii.1964, leg. J.A. Chemsak &amp; J. Powell, EMEC 204816 (1 ex. EMEC); 36 mi N of Mazatlan, 18.xi.1955, leg. J.C. Schaffner (1 ex. FSCA);
<emphasis bold="true" pageId="78" pageNumber="79">Sonora:</emphasis>
7 mi W Alamos, Blk- &amp; White lights, 8.viii.1964, leg. J.A. Chemsak, J. Powell, EMEC 204810; EMEC 204826 (2 ex. EMEC); 5 km N Alamos, 6.viii.1998, leg. M.S. Caterino, EMEC 204768 (1 ex. EMEC); 7 mi SE Alamos, 27.xi.1970, leg. K. Stephan (1 ex. FSCA); nr Guicochi, 1768 m, 25.i.1972, leg. V. Roth (1 ex. FSCA);
<emphasis bold="true" pageId="78" pageNumber="79">Veracruz:</emphasis>
Laguna Verde, 30.iii.1975, leg. C. Halffter, P. Reyes, BLT (2 ex. FSCA).
<emphasis bold="true" pageId="78" pageNumber="79">U.S.A.:</emphasis>
<emphasis bold="true" pageId="78" pageNumber="79">Arizona:</emphasis>
Cochise Co., SW Reg. Sta., 5 mi SW Portal, 4.viii.1961, leg. J.M. Linsley, EMEC 204884 (1 ex. EMEC);1 mi up CarrCyn R., 9.vii.1972, leg. J.M. Cicero (2 ex. FSCA); 6 mi E Bisbee, 17.vii.1972, leg. J.M. Cicero, (1 ex. FSCA); Skeleton Canyon, 24.viii.1962, leg. D. Weems (1 ex. FSCA); Skeleton Canyon, 1372-1524 m, 24.viii.1962, leg. H.V. Weems Jr. (1 ex. FSCA); Cave Creek Canyon, 11.vii.1984, UVL (1 ex. FSCA); Coronado Ntl. For., Idlewild cmpgd, 18.v.1990, leg. R.S. Miller (1 ex. MTEC); Huachuca Mtns, Bear Cr., rock
<pageBreakToken pageId="79" pageNumber="80" start="start">pools</pageBreakToken>
in strm,
<geoCoordinate degrees="31" direction="north" minutes="22" orientation="latitude" precision="15" seconds="24" value="31.373333">31°22'24&quot;N</geoCoordinate>
,
<geoCoordinate degrees="110" direction="west" minutes="21" orientation="longitude" precision="15" seconds="40" value="-110.36111">110°21'40&quot;W</geoCoordinate>
, 26.iv.2000, leg. K.B. Miller, #2000-12 (1 ex. MSBA); Rucker Canyon, pools in strbed, 25.iv.2000, leg. K.B. Miller (1 ex. MSBA); Hidalgo Co., Skeleton Canyon, Peloncillo Mts., 1372-1524 m, 25.viii.1962, leg. H.V. Weems Jr., in stream (1 ex. FSCA); Pima Co., Tucson, v.1958, leg. L. Lenando (2 ex. MTEC); Tucson, 2.viii.1970, leg. K. Stephan (1 ex. FSCA); Tucson, Sabino Canyon, 29.v.1958, leg. L. Lenando (1 ex. MTEC); Mouth of Madera Canyon, 17.vi.1967, leg. B. Streit (7 ex. FSCA); Madera Canyon, 22.ix.1977, leg. R.S. Miller (1 ex. MTEC); Catalina Mts., 4.viii.1930, leg. L.K. Gloyd, 145 (4 ex. FSCA); Sabino Canyon, 22.viii.1968, leg. F. Hovore, 489-490 (2 ex. FSCA); Box Spring Canyon, 8.viii.1986, leg. R.S. Miller (1 ex. MTEC); same as previous except: 9.viii.1986 (1 ex. MTEC); same as previous except: 10.viii.1986 (1 ex. MTEC); Sta. Rita Exp. Range, 04.viii.1988, leg. S. Lajeunesse (1 ex. MTEC) same as previous except: leg. M.M. Hooten (1 ex. MTEC); Coronado Ntl. For., 6.ix.1938, leg. C.L. Hubbs family, 102b (1 ex. FSCA); Santa Catalina Mtns., Molino Canyon, 3.iii.1968 (5 ex. FSCA); same as previous except: 30.iii.1969 (1 ex. FSCA); Santa Cruz Co.,
<normalizedToken originalValue="Peña">Pena</normalizedToken>
Blanca, 24.viii.1977, leg. R.S. Miller (2 ex. MTEC); same as previous except: 20.viii.1971, leg. J. Cicero (2 ex. FSCA); same as previous except: 16.vii.9172 (1 ex. FSCA);
<normalizedToken originalValue="Peña">Pena</normalizedToken>
Blanca Lake, 10.x.1990, leg. W.B. Warner (2 ex. FSCA);
<normalizedToken originalValue="Peña">Pena</normalizedToken>
Blanca Lake, 20.vii.1982, leg. G.H. Nelson, Ultraviolet light (2 ex. FSCA); Madera Canyon,15.vii.1972, leg. J. Cicero (2 ex. FSCA); Sycamore Canyon, 16.iv.1950, leg. R.R. Miller &amp; H.E. Winn, M-50-40 (1 ex. FSCA); Mt. Hopkins, 27.vii.1992, leg. J.&amp;M. Huether (1 ex. FSCA); Spring fed trib. to
<normalizedToken originalValue="Peña">Pena</normalizedToken>
Blanca Canyon, 17.iv.1950, leg. R.R. Miller &amp; H.E. Winn, M50-41 (1 ex. FSCA); Santa Rita Mts., Gardner Canyon,
<pageBreakToken pageId="80" pageNumber="81" start="start">22</pageBreakToken>
.vi.1975, leg. K. Stephan (2 ex. FSCA);
<emphasis bold="true" pageId="80" pageNumber="81">New Mexico:</emphasis>
Hidalgo Co., Peloncillo Mtns., Clanton Canyon, pool in wash, 20.ix.2009, leg. A.B. Johnson et. al. (3 ex. MSBA);
<emphasis bold="true" pageId="80" pageNumber="81">Texas:</emphasis>
&quot;Big Bend&quot;, vii.1960, leg. D. Thornton (3 ex. FSCA); John Davis Co., Valentine, 13.vii.1927, leg. L.A. Anderson (2 ex. KSEM); Kerr Co., Kerrville, 2.vii.1938, leg. I. Norris (2 ex. FSCA).
</paragraph>
</subSubSection>
<subSubSection pageId="80" pageNumber="81" type="diagnosis">
<paragraph pageId="80" pageNumber="81">Diagnosis.</paragraph>
<paragraph pageId="80" pageNumber="81">
Male (Fig.
<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Dineutus sublineatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="80" pageNumber="81">44C-D</figureCitation>
): Size: 12.3-15.5 mm. Body form elongate broadly oval; elytral apices broadly or flatly rounded/subtruncate, with serrations and irregularities absent apically, apicolateral sinuation weakly present, each elytron with all 9 elytral striae well developed, elytral stria 1 and 2 often obscured suturally and near the scutellar region by dense microreticulation, often accompanied by fine weakly impressed punctures; profemora with highly acute sub-apicoventral tooth; protibiae club-shaped; mesotarsal claws similar in size with very weak denticle (Fig.
<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Dineutus sublineatus. 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="80" pageNumber="81">45C</figureCitation>
) 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.
<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Dineutus sublineatus. 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="80" pageNumber="81">45A, B, D</figureCitation>
) median lobe in dorsal view nearly as long as parameres, narrow, becoming attenuated apically, apex very narrowly rounded, in lateral view median lobe becoming highly narrowed ventrally in apical 1/3, shallowly curved dorsally after basal 1/3, ventrally median lobe with parallel sided sperm-groove, parameres in dorsal view very weakly expanded laterally at apical 1/3, angled apically.
</paragraph>
<paragraph pageId="80" pageNumber="81">
Female (Fig.
<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Dineutus sublineatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="80" pageNumber="81">44A-B</figureCitation>
): Size: 12.6-14.0 mm. Body form regularly oval; elytral apices broadly or flatly rounded/subtruncate, with serrations and irregularities absent apically, apicolateral sinuation usually weakly present, each elytron with all 9 elytral striae well developed, elytral stria 1 and 2 often obscured suturally and near the scutellar region by dense microreticulation, often accompanied by fine weakly impressed punctures; 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, abdominal sternite VII with medial expansion of posterior margin.
</paragraph>
<caption pageId="80" pageNumber="81" start="Figure 44" startId="F44">
<paragraph pageId="80" pageNumber="81">
<emphasis bold="true" pageId="80" pageNumber="81">Figure 44.</emphasis>
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="80" pageNumber="81" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="80" pageNumber="81">Dineutus sublineatus</emphasis>
</taxonomicName>
.
<emphasis bold="true" pageId="80" pageNumber="81">A</emphasis>
♀ dorsal habitus
<emphasis bold="true" pageId="80" pageNumber="81">B</emphasis>
♀ ventral habitus
<emphasis bold="true" pageId="80" pageNumber="81">C</emphasis>
♂ dorsal habitus
<emphasis bold="true" pageId="80" pageNumber="81">D</emphasis>
♂ ventral habitus. All scale bars ≈ 2 mm.
</paragraph>
</caption>
<caption pageId="80" pageNumber="81" start="Figure 45" startId="F45">
<paragraph pageId="80" pageNumber="81">
<emphasis bold="true" pageId="80" pageNumber="81">Figure 45.</emphasis>
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="80" pageNumber="81" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="80" pageNumber="81">Dineutus sublineatus</emphasis>
</taxonomicName>
.
<emphasis bold="true" pageId="80" pageNumber="81">A</emphasis>
aedeagus dorsal view
<emphasis bold="true" pageId="80" pageNumber="81">B</emphasis>
aedeagus ventral view
<emphasis bold="true" pageId="80" pageNumber="81">C</emphasis>
♂ mesotarsal claws
<emphasis bold="true" pageId="80" pageNumber="81">D</emphasis>
aedeagus lateral view. Scale bar for
<emphasis bold="true" pageId="80" pageNumber="81">C</emphasis>
≈ 0.10 mm all others ≈ 1 mm.
</paragraph>
</caption>
<caption pageId="80" pageNumber="81" start="Figure 46" startId="F46">
<paragraph pageId="80" pageNumber="81">
<emphasis bold="true" pageId="80" pageNumber="81">Figure 46.</emphasis>
Variation in specimens from Sierra de Zapotan, Narayit, Mexico.
<emphasis bold="true" pageId="80" pageNumber="81">A</emphasis>
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="80" pageNumber="81" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="80" pageNumber="81">Dineutus sublineatus</emphasis>
</taxonomicName>
dorsal habitus
<emphasis bold="true" pageId="80" pageNumber="81">B</emphasis>
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="80" pageNumber="81" phylum="Arthropoda" rank="species" species="solitarius">
<emphasis italics="true" pageId="80" pageNumber="81">Dineutus solitarius</emphasis>
</taxonomicName>
male dorsal habitus. ♀
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="80" pageNumber="81" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="80" pageNumber="81">Dineutus sublineatus</emphasis>
</taxonomicName>
from Salama Guatemala
<emphasis bold="true" pageId="80" pageNumber="81">C</emphasis>
dorsal habitus. All scale bars ≈ 2 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection lastPageId="81" lastPageNumber="82" pageId="80" pageNumber="81" type="differential diagnosis">
<paragraph pageId="80" pageNumber="81">Differential diagnosis.</paragraph>
<paragraph pageId="81" pageNumber="82">
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">
<pageBreakToken pageId="81" pageNumber="82" start="start">Dineutus</pageBreakToken>
sublineatus
</emphasis>
</taxonomicName>
is unique among all North American
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus</emphasis>
</taxonomicName>
in being large in size, with a more or less regularly elongate oval body form, with all 9 elytral striae strongly evident, males with a small well developed and highly acute profemoral sub-apicoventral tooth, the form of the aedeagus (Fig.
<figureCitation captionStart="Figure 45" captionStartId="F45" captionText="Figure 45. Dineutus sublineatus. 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="81" pageNumber="82">45A</figureCitation>
), and females with abdominal sternite VII (Fig.
<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Dineutus sublineatus. A ♀ dorsal habitus B ♀ ventral habitus C ♂ dorsal habitus D ♂ ventral habitus. All scale bars ≈ 2 mm." pageId="81" pageNumber="82">44B</figureCitation>
) with a medial expansion of the posterior margin. This species is highly unique in having the elytral striae well developed and highly evident. All other species have the elytral striae primarily faintly evident, or apparent but not strongly developed. All 9 elytral striae are evident, and often for most their length. Striae 1 and 2 can be obscured near the scutellar region as well as the near the sutural region of the elytra, by the microreticulation of these areas, which is often accompanied by fine weakly impressed punctures. An even more unique character of this species is the medial expansion of the posterior margin of abdominal sternite VII in the female. This is unique among the females of all Ne World
<taxonomicName genus="Dinuetus" lsidName="Dinuetus" pageId="81" pageNumber="82" rank="genus">
<emphasis italics="true" pageId="81" pageNumber="82">Dinuetus</emphasis>
</taxonomicName>
. This species is similar to other Mexican and Central American species in coloration, being dorsally olive green with light violet reflections laterally on the elytra, and with the venter being very darkly colored black to reddish brown. However,
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
unlike the other large Mexican and Central American species has the elytral apices regularly to flatly rounded/subtruncate, as opposed to being truly truncate.
</paragraph>
</subSubSection>
<subSubSection pageId="81" pageNumber="82" type="distribution">
<paragraph pageId="81" pageNumber="82">Distribution</paragraph>
<paragraph pageId="81" pageNumber="82">
<emphasis bold="true" pageId="81" pageNumber="82">
(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="81" pageNumber="82">54C</figureCitation>
).
</emphasis>
Extreme southwestern U.S., throughout most of Mexico and central Central America to Nicaragua (
<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>
;
<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>
;
<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="Regimbart, M" journalOrPublisher="Annales de la Societe entomologique de France" pageId="95" pageNumber="96" pagination="379 - 458" refId="B103" refString="Regimbart, M, 1882. Essai monographique de la famille des Gyrinidae. 1e partie. In: Annales de la Societe entomologique de France.: 379 - 458" title="Essai monographique de la famille des Gyrinidae. 1 e partie" volumeTitle="Annales de la Societe entomologique de France." year="1882">
<normalizedToken originalValue="Régimbart">Regimbart</normalizedToken>
1882
</bibRefCitation>
;
<bibRefCitation author="Regimbart, M" journalOrPublisher="Annales de la Societe entomologique de France" pageId="95" pageNumber="96" pagination="663 - 737" refId="B106" refString="Regimbart, M, 1907. Essai monographique de la famille des Gyrinidae. 3e supplement. Annales de la Societe entomologique de France 76: 663 - 737" title="Essai monographique de la famille des Gyrinidae. 3 e supplement." volume="76" year="1907">1907</bibRefCitation>
;
<bibRefCitation author="Roberts, CH" journalOrPublisher="Transactions of the American Entomological Society" pageId="95" pageNumber="96" pagination="279 - 288" refId="B107" refString="Roberts, CH, 1895. The species of Dineutes of America north of Mexico. Transactions of the American Entomological Society 22: 279 - 288" title="The species of Dineutes of America north of Mexico." volume="22" year="1895">Roberts 1895</bibRefCitation>
;
<bibRefCitation author="Wood, FE" journalOrPublisher="University of Missouri, Columbia, Missouri" pageId="97" pageNumber="98" refId="B130" refString="Wood, FE, 1962. A synopsis of the genus Dineutus (Coleoptera: Gyrinidae) in the Western Hemisphere. University of Missouri, Columbia, Missouri" title="A synopsis of the genus Dineutus (Coleoptera: Gyrinidae) in the Western Hemisphere" year="1962">Wood 1962</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="81" pageNumber="82" type="habitat">
<paragraph pageId="81" pageNumber="82">Habitat.</paragraph>
<paragraph pageId="81" pageNumber="82">
Lotic and lentic. In Oaxaca, Mexico, 43 mi w of Tehuantepec
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
was collected in pools in mountain streams at 2500-3000 ft in elevation (FSCA). Other label data also indicate pools in steams. In the United States the second author has collected this species in pools in dry streambeds within canyons in southern Arizona.
</paragraph>
</subSubSection>
<subSubSection pageId="81" pageNumber="82" type="discussion">
<paragraph pageId="81" pageNumber="82">Discussion.</paragraph>
<paragraph pageId="81" pageNumber="82">
There is dimorphism in body form among the sexes of
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
. Females tend to be more evenly elongate regularly oval, while males have a greater dorsoventral convexity in the scutellar region (especially evident in lateral view) resulting in a steepness in the humeral region of the elytra and the posterolateral region of the pronotum. Males of
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
also have the lateral margin, just posterior to the humeral region of the elytra, slightly expanded. As mentioned earlier females also have a medial exspansion of abominal sternite VII, not seen the males.
</paragraph>
<paragraph pageId="81" pageNumber="82">
This species exhibits a large amount of variation throughout its range, with noticeable variation in body form. A series of specimens from near Tehuanatepec, Oaxaca, Mexico, has the females noticeably smaller than the males, and much more parallel sided in appearance, as well as both sexes with the elytral apices very flatly rounded, nearly truncate in appearance. A single female specimen from Salama, Guatemala (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="81" pageNumber="82">46C</figureCitation>
) (UCRC), was observed with a highly parallel sided body form, with the elytral apices seemingly produced, and very flatly rounded. This specimen at first glance seemed like a different species, but the specimen possesses the well-developed elytral striae and abdominal sternite VII with a medial expansion, currently characteristic of only
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
. Without a male to unambiguously place the Guatemalan specimen as a different species, we considered it a variation of
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
, as it possessed the diagnostic females character of the medial expansion of abdominal sternite VII, thus far unique to
<taxonomicName baseAuthorityName="Chevrolat" baseAuthorityYear="1834" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus sublineatus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="sublineatus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus sublineatus</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph pageId="81" pageNumber="82">
Specimens from Siera de Zapotan, Narayit, Mexico (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="81" pageNumber="82">46A</figureCitation>
) (UCRC), show variation in the punctation of the elytra, being composed of large shallowly impressed punctures, giving the elytra a dimply appearance. This situation is also seen in specimens from this locality in
<taxonomicName authorityName="Aube" authorityYear="1838" class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus solitarius" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="species" species="solitarius">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus solitarius</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="81" pageNumber="82">46B</figureCitation>
). Other variation in the sculpturing of the elytra can be seen in several different populations. Some populations have the cells of the reticulation of the pronotal disc, as well as the elytral disc near the scutellar and sutural region, noticeably reflective, creating a bright metallic green color.
</paragraph>
<paragraph pageId="81" pageNumber="82">
Even though there is a great deal of variability in these species in terms of body form, elytral apices, and elytral sculpturing, several characters are very stable. These include the strong development of the elytral striae in both sexes, in males the form of the aedeagus, and in females abomdinal sternite VII possessing a medial expansion. There is very minimal varation in the form of the male aedeagus, which is the most diagnostic character for species recognition within
<taxonomicName class="Insecta" family="Gyrinidae" genus="Dineutus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dineutus" order="Coleoptera" pageId="81" pageNumber="82" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="81" pageNumber="82">Dineutus</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>