<?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>0065-1737</journal-id>
<journal-title><![CDATA[Acta zoológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Zool. Mex]]></abbrev-journal-title>
<issn>0065-1737</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Ecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0065-17372023000100112</article-id>
<article-id pub-id-type="doi">10.21829/azm.2023.3912588</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The male of Strotarchus paradoxus (Petrunkevitch, 1963) (Araneae: Cheiracanthiidae), a fossil spider from Chiapas, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[El macho de Strotarchus paradoxus (Petrunkevitch, 1963) (Araneae: Cheiracanthiidae), una araña fósil de Chiapas, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Villafuerte]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra-Núñez]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias y Artes de Chiapas Instituto de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[Tuxtla Gutiérrez Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,El Colegio de la Frontera Sur  ]]></institution>
<addr-line><![CDATA[Tapachula Chiapas]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>39</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0065-17372023000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0065-17372023000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0065-17372023000100112&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The spider genus StrotarchusSimon, 1888 includes 18 extant species from the American continent (12 from Mexico). Additionally, two fossil species have been described for this genus, Strotarchus paradoxus (Petrunkevitch, 1963) from Mexican amber (Chiapas), and Strotarchus heidtiWunderlich, 1988 from Dominican Republic amber. From two pieces of amber from Chiapas, here we describe for the first time, the male of the fossil spider S. paradoxus previously known only by a female specimen preserved in amber from the same locality. Moreover, a diagnosis is proposed for this species based on the characteristics of the female described by Petrunkevitch (1963) and the male here described.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El género de arañas StrotarchusSimon, 1888 incluye 18 especies actuales para el continente americano (12 de México). Adicionalmente, se han descrito dos especies fósiles de este género, Strotarchus paradoxus (Petrunkevitch, 1963) de ámbar de México (Chiapas), y Strotarchus heidtiWunderlich, 1988 de ámbar de la República Dominicana. A partir de dos piezas de ámbar de Chiapas, describimos aquí por primera vez, el macho de la araña fósil S. paradoxus conocida previamente solo por un ejemplar hembra preservado en ámbar de la misma localidad. Además, se propone una diagnosis para esta especie con base en las características de la hembra descrita por Petrunkevitch (1963) y del macho aquí descrito.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[amber]]></kwd>
<kwd lng="en"><![CDATA[middle Miocene]]></kwd>
<kwd lng="en"><![CDATA[Simojovel]]></kwd>
<kwd lng="en"><![CDATA[taxonomy]]></kwd>
<kwd lng="es"><![CDATA[ámbar]]></kwd>
<kwd lng="es"><![CDATA[Mioceno medio]]></kwd>
<kwd lng="es"><![CDATA[Simojovel]]></kwd>
<kwd lng="es"><![CDATA[taxonomía]]></kwd>
</kwd-group>
</article-meta>
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