Aptostichus stanfordianus

Aptostichus stanfordianus, the Stanford Hills trapdoor spider, is a species of wafer-lid trapdoor spider (Euctenizidae) endemic to California in the United States.^{[1][2][3][4][5]}

In Sonoma County, California

Aptostichus stanfordianus
Female
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Family:	Euctenizidae
Genus:	Aptostichus
Species:	A. stanfordianus
Binomial name
Aptostichus stanfordianus Smith, 1908