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''Aptostichus simus'' is a species of trapdoor spider in the family Euctenizidae. It is a medium-sized mygalomorph found in the United States and Mexico.
''Aptostichus simus'' is a species of trapdoor spider in the family Euctenizidae. It is a medium-sized mygalomorph found in the United States and Mexico.
References
{{Taxonbar, from=Q4870345 Spiders of Mexico Spiders of the United States Euctenizidae Spiders described in 1917