<?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>S1870-34532025000100414</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2025.96.5563</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Phylogeny of the weevil genus Megalostylus (Coleoptera: Curculionidae: Entiminae), endemic to Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Filogenia del género de gorgojos Megalostylus (Coleoptera: Curculionidae: Entiminae), endémico de México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lizama-Hernández]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-Echeverría]]></surname>
<given-names><![CDATA[Ma Ventura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guadalupe del Rio]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Morelos Escuela de Estudios Superiores del Jicarero Laboratorio de Sistemática y Evolución de Insectos]]></institution>
<addr-line><![CDATA[Jojutla Morelos]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Museo de La Plata División Entomología ]]></institution>
<addr-line><![CDATA[La Plata Buenos Aires]]></addr-line>
<country>Argentina</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=S1870-34532025000100414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532025000100414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532025000100414&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The first phylogenetic analysis of the weevil genus Megalostylus endemic to Mexico (Entiminae, Naupactini) is presented, based on a data matrix of 37 morphological characters of adults and 21 terminal taxa. The ingroup comprises 9 species, 4 varieties, and 5 specimens of Megalostylus whose identification at the species level is doubtful. The outgroup includes species representing closely related genera: Pantomorus albosignatus, Naupactus cervinus, and Megalostylodes hirsutus. The objectives were to test the monophyly of Megalostylus, to explore its species relationships, and to determine which synapomorphies allow its identification and differentiation from other genera. The analysis yielded a single cladogram of 61 steps, showing the following phylogenetic sequence: (Pantomorus albosignatus (Naupactus cervinus (Megalostylodes hirsutus (Megalostylus rhodopus (M. morpho 2 (M. macrophthalmus (M. tomentosus (M. dilaticollis (M. albicans (M. brevipilis, M. fusiformis (M. splendidus - M. sturmi))))))))))). The results support the monophyly of Megalostylus based on the following synapomorphies: protibia with a prominence opposite to mucro, elytra almost flat, sternite VIII subrhomboidal very elongated, and aedeagus smooth. They also support its sister-group relationship with Megalostylodes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Presentamos el primer análisis filogenético del género de gorgojos Megalostylus endémico de México (Entiminae, Naupactini) basado en una matriz de datos de 37 caracteres morfológicos de adultos y 21 taxones terminales. El grupo interno comprende 9 especies, 4 variedades y 5 especímenes de Megalostylus de dudosa identificación a nivel de especie. El grupo externo está formado por 3 especies representantes de géneros relacionados cercanamente: Pantomorus albosignatus, Naupactus cervinus y Megalostylodes hirsutus. Los objetivos fueron poner a prueba la monofilia de Megalostylus, explorar sus relaciones interespecíficas y determinar qué sinapomorfías lo identifican y diferencian de otros géneros. El análisis produjo un solo cladograma de 61 pasos, que muestra la siguiente secuencia filogenética: (Pantomorus albosignatus (Naupactus cervinus (Megalostylodes hirsutus (Megalostylus rhodopus (M. morpho 2 (M. macrophthalmus (M. tomentosus (M. dilaticollis (M. albicans (M. brevipilis, M. fusiformis (M. splendidus - M. sturmi))))))))))). Los resultados avalan la monofilia de Megalostylus con base en las siguientes sinapomorfías: protibias con una prominencia opuesta al mucro, élitros casi planos en vista lateral, esternito VIII subromboidal muy elongado y aedeago liso. También respaldan su estrecha relación con Megalostylodes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Systematics]]></kwd>
<kwd lng="en"><![CDATA[Naupactini]]></kwd>
<kwd lng="en"><![CDATA[Morphology]]></kwd>
<kwd lng="en"><![CDATA[New species]]></kwd>
<kwd lng="en"><![CDATA[New varieties]]></kwd>
<kwd lng="en"><![CDATA[Megalostylodes]]></kwd>
<kwd lng="es"><![CDATA[Sistemática]]></kwd>
<kwd lng="es"><![CDATA[Naupactini]]></kwd>
<kwd lng="es"><![CDATA[Morfología]]></kwd>
<kwd lng="es"><![CDATA[Especie nueva]]></kwd>
<kwd lng="es"><![CDATA[Variedades nuevas]]></kwd>
<kwd lng="es"><![CDATA[Megalostylodes]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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