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On the trapdoor spiders of Mexico: description of the first new species of the spider genus Aptostichus from Mexico and the description of the female of Eucteniza zapatista (Araneae, Mygalomorphae, Euctenizidae).

ABSTRACT: A new species of the spider genus Aptostichus Simon, 1891 is described from a cave in Huautla de Jiménez, Oaxaca, Mexico: Aptostichus sabinaesp. n. This species represents the first new species described from Mexico and the southernmost record in North America for the genus so far. Aptostichus sabinaesp. n. represents the forty-first species described for the genus, which has the highest species diversity in the family Euctenizidae. Eucteniza zapatista is redescribed based on five new males and the first known female from the Parque Nacional La Malinche (PNLM), Tlaxcala Mexico. Eucteniza zapatista is the fourth species of the genus where a female is known, and one of fourteen species described for the genus to date.

SUBMITTER: Valdez-Mondragon A

PROVIDER: S-EPMC5240349 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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On the trapdoor spiders of Mexico: description of the first new species of the spider genus Aptostichus from Mexico and the description of the female of Eucteniza zapatista (Araneae, Mygalomorphae, Euctenizidae).

Valdez-Mondragón Alejandro A Cortez-Roldán Mayra R MR

ZooKeys 20161216 641

A new species of the spider genus Aptostichus Simon, 1891 is described from a cave in Huautla de Jiménez, Oaxaca, Mexico: Aptostichus sabinaesp. n. This species represents the first new species described from Mexico and the southernmost record in North America for the genus so far. Aptostichus sabinaesp. n. represents the forty-first species described for the genus, which has the highest species diversity in the family Euctenizidae. Eucteniza zapatista i ...[more]

PMID: 28138292

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Project description:This systematic study documents the taxonomy, diversity, and distribution of 40 species of the predominately Californian trapdoor spider genus Aptostichus Simon, 1891. Thirty-three of these species are newly described: Aptostichus dantrippi, Aptostichus cabrillo, Aptostichus pennjillettei, Aptostichus asmodaeus, Aptostichus nateevansi, Aptostichus chiricahua, Aptostichus icenoglei, Aptostichus isabella, Aptostichus muiri, Aptostichus barackobamai, Aptostichus sinnombre, Aptostichus hedinorum, Aptostichus aguacaliente, Aptostichus chemehuevi, Aptostichus sarlacc, Aptostichus derhamgiulianii, Aptostichus anzaborrego, Aptostichus serrano, Aptostichus mikeradtkei, Aptostichus edwardabbeyi, Aptostichus killerdana, Aptostichus cahuilla, Aptostichus satleri, Aptostichus elisabethae, Aptostichus fornax, Aptostichus lucerne, Aptostichus fisheri, Aptostichus bonoi, Aptostichus cajalco, Aptostichus sierra, Aptostichus huntington, Aptostichus dorothealangeae, and Aptostichus chavezi. Most of these species are restricted to the California Floristic Province, a known biodiversity hotspot. Of the 40 recognized species, over half are considered to be imperiled or vulnerable and two have likely gone extinct over the past half-century; the conservation status of only 11 species is considered to be secure. Using 73 quantitative and qualitative morphological characters I propose a preliminary phylogeny for the genus that recognizes four major lineages: the Atomarius, Simus, Hesperus, and Sierra species groups. Additionally, the phylogenetic analysis indicates that adaptations favoring the invasion of the arid desert habitats of southern California have evolved multiple times across the group. The existence of both desert and non - desert species in three of the four species groups makes this genus an ideal candidate for the study of the evolutionary ecology of desert arthropods. A set of molecular characters based on the contiguous mitochondrial DNA genes 16S-tRNA valine-12S is used in an independent analysis to assist in placement of specimens into species. The taxonomy section explicitly identifies the concept employed in species delimitation. Niche based distribution models are constructed to predict the ranges of species for which an adequate number of sampling sites were known.

Dataset Information

On the trapdoor spiders of Mexico: description of the first new species of the spider genus Aptostichus from Mexico and the description of the female of Eucteniza zapatista (Araneae, Mygalomorphae, Euctenizidae).

Publications

On the trapdoor spiders of Mexico: description of the first new species of the spider genus <i>Aptostichus</i> from Mexico and the description of the female of <i>Eucteniza zapatista</i> (Araneae, Mygalomorphae, Euctenizidae).

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