Spider in Utah
July 29, 2009
I came across this spider while walking in a desert scrub area near a creek. It was about the size of a quarter or maybe a little smaller if I remember correctly. Any idea what it might be?
Curious about Critters
Cedar City, Utah
Red Spotted Ant Mimic
Hi Curious,
Using BugGuide, we believe we have identified your spider as a Red Spotted Ant Mimic, Castianeira descripta. According to BugGuide: “Although like most spiders this species is equipped with vemon to subdue its prey, it is not considered harmful to humans.”
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Location: Cedar City, Utah 
