Requested reference
Valdez-Mondragón, A. & Cortez-Roldán, M. R. (2016). 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). ZooKeys 641: 81-102. doi:10.3897/zookeys.641.10521 -- Show included taxa