Loxosceles arizonica

{{Short description|Species of spider}}

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| taxon = Loxosceles arizonica

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| authority = Gertsch & Mulaik, 1940

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Loxosceles arizonica, known as the Arizona brown spider,{{Citation |last1=Werner |first1=Floyd G. |date=1968 |title=The Arizona Brown Spider |journal=Progressive Agriculture in Arizona |volume=20 |issue=6 |pages=12–13 |hdl=10150/299996 }} is a species of spider in the family Sicariidae. Field studies suggest that ants are its major prey, especially ants of the genera Novomessor and Camponotus.{{Citation |last1=Richman |first1=David B. |date=1973 |title=Field Studies on the Biology of Loxosceles arizonica Gertsch and Mulaik (Araneae, Scytodidae) |journal=Journal of the Arizona Academy of Science |volume=8 |issue=3 |pages=124–126 |doi=10.2307/40021776 |jstor=40021776 }}