"Hogna carolinensis" is the largest spider in the United States and can have a body length (head to tail) of up to almost 1.5 inches or 35mm. They scare people, but it is hard to get them even to try to bite. Instead of showing their , they will run away. They can run very fast. They are about 16 times larger than the smallest species of wolf spiders. For instance, the smallest of the wolf spiders of the genus "Trabeops" are only 4 mm. long. 