i live in souther california and my house is coverd in these things. during the day u can see them under rocks and in corners out in my shed but as soon as the sun starts to go down i see them every where infact i just saw one tonight crawl across my wall not 2 feet away from my head! they get to be about the size of the tip of my index finger to the first nuckle which is huge when its comming right at you!