<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532025000100422</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2025.96.5599</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Notes on Cybistrinae from Mexico (Coleoptera: Dytiscidae), with the description of 2 new species of Trifurcitus]]></article-title>
<article-title xml:lang="es"><![CDATA[Notas sobre Cybistrinae de México (Coleoptera: Dytiscidae), con la descripción de 2 especies nuevas de Trifurcitus]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arce-Pérez]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Ponce]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Ecología, A.C. Red de Biodiversidad y Sistemática ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>96</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532025000100422&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532025000100422&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532025000100422&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A bibliographic and museum review is carried out on the Cybistrinae species of Mexico, as well as comparative analysis with species from South America, concluding that Trifurcitus fallax (Aubé, 1838) has been wrongly cited for Mexico. Additionally, 2 new species are described as the first country-specificrecords, Trifurcitus mexicanus sp. nov. from the state of Chiapas, and T. maya sp. nov. from the state of Yucatán. Also, new state records are provided for Bifurcitus lherminieri (Guérin-Méneville, 1829) in Mexico. Future reviews of specimens under the names Bifurcitus, Cybister, Metaxydytes, and Trifurcitus are recommended as this could likely uncover more new species.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se realiza una revisión bibliográfica y museística de las especies de Cybistrinae de México, así como un análisis comparativo con especies de Sudamérica, concluyendo que Trifurcitus fallax (Aubé, 1838) ha sido citada erróneamente para México. Adicionalmente, se describen 2 especies nuevas como los primeros registros específicos para el país, Trifurcitus mexicanus sp. nov. del estado de Chiapas, y T. maya sp. nov. del estado de Yucatán. También se proporcionan registros nuevos estatales para Bifurcitus lherminieri (Guérin-Méneville, 1829) para México. Se recomiendan revisiones futuras de especímenes bajo los nombres Bifurcitus, Cybister, Metaxydytes y Trifurcitus, ya que éstos, probablemente, podrían incluir más especies nuevas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coleoptera]]></kwd>
<kwd lng="en"><![CDATA[Dytiscidae]]></kwd>
<kwd lng="en"><![CDATA[Cybistrinae]]></kwd>
<kwd lng="en"><![CDATA[Trifurcitus]]></kwd>
<kwd lng="en"><![CDATA[Bifurcitus]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="en"><![CDATA[New species]]></kwd>
<kwd lng="es"><![CDATA[Coleoptera]]></kwd>
<kwd lng="es"><![CDATA[Dytiscidae]]></kwd>
<kwd lng="es"><![CDATA[Cybistrinae]]></kwd>
<kwd lng="es"><![CDATA[Trifurcitus]]></kwd>
<kwd lng="es"><![CDATA[Bifurcitus]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[Especies nuevas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce-Pérez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Novelo-Gutiérrez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Fery]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cybister (s. str.) poblanus sp. n. from Mexico and notes on other species of Cybistrinae (Coleoptera: Dytiscidae)]]></article-title>
<source><![CDATA[Zootaxa]]></source>
<year>2021</year>
<volume>5061</volume>
<page-range>323-39</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce-Pérez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Reynoso-Velasco]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New state records for Megadytes lherminieri (Guérin-Méneville, 1829) (Coleoptera: Dytiscidae: Cybistrinae) in Mexico]]></article-title>
<source><![CDATA[Proceedings of the Entomological Society of Washington]]></source>
<year>2022</year>
<volume>124</volume>
<page-range>359-61</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aubé]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Species général des hydrocanthareset gyriniens; pour faire suite au species général des coléoptères de la collection de M. le comte Dejean]]></source>
<year>1838</year>
<publisher-loc><![CDATA[París ]]></publisher-loc>
<publisher-name><![CDATA[Méquignon Père et Fils]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brinck]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nomenklatorische und systematische studienüber Dytisciden, III. Die Klassifikation der Cybisterinen]]></article-title>
<source><![CDATA[Kungliga Fysiografiska Sällskapets Handlingar]]></source>
<year>1945</year>
<volume>56</volume>
<page-range>1-20</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dejean]]></surname>
<given-names><![CDATA[P. F. M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Catalogue des coléoptères de la collection de M. le comte Dejean]]></source>
<year>1836</year>
<edition>3</edition>
<publisher-loc><![CDATA[París ]]></publisher-loc>
<publisher-name><![CDATA[Méquignon-Marvis]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Jr. N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Description of the larvae of Megadytes fallax (Aubé) and M. marginithorax (Perty) (Coleoptera: Dytiscidae)]]></article-title>
<source><![CDATA[The Coleopterists Bulletin]]></source>
<year>1995</year>
<volume>49</volume>
<page-range>313-8</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hendrich]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Manuel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Balke]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The return of the Duke-locality data for Megadytes ducalis Sharp, 1882, the world&#8217;s largest diving beetle, with notes on related species (Coleoptera: Dytiscidae).]]></article-title>
<source><![CDATA[Zootaxa]]></source>
<year>2019</year>
<volume>4586</volume>
<page-range>517-35</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Libonatti]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Michat]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[P. L. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aquatic Coleoptera from two protected areas of the humid Chaco eco-region (Chaco Province, Argentina)]]></article-title>
<source><![CDATA[Revista de la Sociedad Entomológica Argentina]]></source>
<year>2013</year>
<volume>72</volume>
<page-range>155-68</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Michat]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Descriptions of larvae of Megadytes (Coleoptera: Dytiscidae: Dytiscinae): the subgenera Trifurcitus and Megadytes s. str., ground plan of chaetotaxy of the genus and phylogenetic analysis]]></article-title>
<source><![CDATA[European Journal of Entomology]]></source>
<year>2010</year>
<volume>107</volume>
<page-range>377-92</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[K. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Review of the genus Cybister Curtis, 1827 (Coleoptera: Dytiscidae: Dytiscinae: Cybistrini) in North America]]></article-title>
<source><![CDATA[The Coleopterists Bulletin]]></source>
<year>2013</year>
<volume>67</volume>
<page-range>401-10</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[K. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bergsten]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Diving beetles of the World: systematics and biology of the Dytiscidae]]></source>
<year>2016</year>
<publisher-loc><![CDATA[Baltimore, Maryland ]]></publisher-loc>
<publisher-name><![CDATA[Johns Hopkins University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[K. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Michat]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Jr. N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reclassification of Cybistrinae Sharp, 1880 in the Neotropical Region (Coleoptera, Adephaga, Dytiscidae), with description of new taxa]]></article-title>
<source><![CDATA[Zookeys]]></source>
<year>2024</year>
<volume>1188</volume>
<page-range>125-68</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nilsson]]></surname>
<given-names><![CDATA[A. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Hájek]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[A world catalogue of the family Dytiscidae (Coleoptera, Adephaga)]]></source>
<year>2023</year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sharp]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On aquatic carnivorous Coleoptera or Dytiscidae]]></article-title>
<source><![CDATA[Scientific Transactions of the Royal Dublin Society]]></source>
<year>1882</year>
<volume>2</volume>
<page-range>179-1003</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sharp]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Biologia Centrali-Americana. Zoologia. Insecta. Coleoptera]]></source>
<year>1882</year>
<volume>1</volume>
<publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[R. H. Porter]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Short]]></surname>
<given-names><![CDATA[A. E. Z.]]></given-names>
</name>
<name>
<surname><![CDATA[McIntosh]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrophilus harpe sp. nov., a remarkable new species of giant water scavenger beetle from Brazil (Coleoptera: Hydrophilidae)]]></article-title>
<source><![CDATA[Acta Entomologica Musei Nationalis Pragae]]></source>
<year>2015</year>
<volume>55</volume>
<page-range>665-71</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trémouilles]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Notas sobre Coleoptera acuáticos neotropicales. I. Cybister (Meganectes) parvus sp. nov. del Brasil (Coleoptera, Dytiscidae)]]></article-title>
<source><![CDATA[Revista de la Sociedad Entomológica Argentina]]></source>
<year>1984</year>
<volume>43</volume>
<page-range>187-90</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trémouilles]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Notas sobre Coleoptera acuáticos neotropicales. II. Nuevos aportes al conocimiento del género Megadytes Sharp (Coleoptera, Dytiscidae), sobre ejemplares del British Museum (Natural History)]]></article-title>
<source><![CDATA[Revista de la Sociedad Entomológica Argentina]]></source>
<year>1989</year>
<volume>45</volume>
<page-range>153-7</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trémouilles]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Notas sobre Coleoptera acuáticos neotropicales. III. Datos ampliatorios sobre distribución geográfica de especies de Megadytes Sharp (Coleoptera, Dytiscidae)]]></article-title>
<source><![CDATA[Revista de la Sociedad Entomológica Argentina]]></source>
<year>1989</year>
<volume>45</volume>
<page-range>159-61</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trémouilles]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bachmann]]></surname>
<given-names><![CDATA[A. O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La tribu Cybisterini en la Argentina (Coleoptera, Dytiscidae)]]></article-title>
<source><![CDATA[Revista de la Sociedad Entomológica Argentina]]></source>
<year>1980</year>
<volume>39</volume>
<page-range>101-25</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wilke]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Beiträge zur Kenntnis der Gattung Cybister Curtis]]></article-title>
<source><![CDATA[Archiv für Naturgeschichte, Abteilung]]></source>
<year>1920</year>
<volume>85A</volume>
<page-range>243-76</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zimmermann]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dytiscidae, Haliplidae, Hygrobiidae, Amphizoidae]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Schenkling]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Coleopterorum Catalogus]]></source>
<year>1920</year>
<volume>IV</volume>
<publisher-loc><![CDATA[Berlín ]]></publisher-loc>
<publisher-name><![CDATA[Junk]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
