Giant Crab Spider
Olios giganteuus
Observed at Organ Pipe Cactus National Monument, Arizona. Oct. 2022.
Sparrasidae -- Giant Crab Spider Family
These large intimidating spiders are not aggressive nor very venomous, and besides, the ones that are most frequently encountered roaming indoors are the males. Males give up feeding and most biting to search for females. These spiders can have a leg spread of 8 cm or more and are active hunters. They do not spin webs. They superficially resemble wolf spiders, but often climb walls, which wolves rarely do. True wolf spiders also have two large and two larger eyes in the front row of eyes. Olios are common around structures in Arizona, so. Nevada, and s.e. California.