Well here's a photo from a ways back of a different individual but again a male of the same species. This showing it's size compared to my hand (hand was flat on the ground so no cheating). They are totally nonchalant and would never try to attack you unless you try to pick them up in which case they'd think you're going to eat them so of course would bite. They are present all the time but I only see them when they rove about to find a female. Day time forays are potentially very dangerous for them as they can be spotted and stung by the parasitic Tarantula Hawk Wasp. Their bite could be pretty bad but wouldn't hold a candle to the pain from being stung by one of those wasps.