title: On the trapdoor spiders of Mexico: description of the first new species of the spider genusAptostichusfrom Mexico and the description of the female ofEucteniza zapatista(Araneae, Mygalomorphae, Euctenizidae).
abstract: A new species of the spider genusAptostichusSimon, 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 zapatistais redescribed based on five new males and the first known female from the Parque Nacional La Malinche (PNLM), Tlaxcala Mexico.Eucteniza zapatistais the fourth species of the genus where a female is known, and one of fourteen species described for the genus to date.
authors.affiliation: Conacyt Research Fellow, Laboratory of Arachnology. Laboratorio Regional de Biodiversidad y Cultivo de Tejidos Vegetales del Instituto de Biología UNAM, sede Tlaxcala. Contiguo FES-Zaragoza Campus III, Ex Fábrica San Manuel de Morcom s/n, San Miguel Contla, C.P. 90640, Municipio de Santa Cruz Tlaxcala, Tlaxcala, Mexico; Colección Nacional de Arácnidos (CNAN), Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México. 3er. Circuito exterior s/n. Apartado Postal 70-153, C.P. 04510, Ciudad Universitaria, Coyoacán, Ciudad de México, Mexico.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Valdez-Mondragón
authors.affiliation: Conacyt Research Fellow, Laboratory of Arachnology. Laboratorio Regional de Biodiversidad y Cultivo de Tejidos Vegetales del Instituto de Biología UNAM, sede Tlaxcala. Contiguo FES-Zaragoza Campus III, Ex Fábrica San Manuel de Morcom s/n, San Miguel Contla, C.P. 90640, Municipio de Santa Cruz Tlaxcala, Tlaxcala, Mexico.
authors.forename: Mayra R
authors.initials: MR
authors.lastname: Cortez-Roldán
keywords: Aptostichus; Eucteniza; Euctenizidae; Mexico; new species; taxonomy