Young Rabid Wolf Spider (Rabidiosa rabida)
These spiders like cotton fields, and wooded areas. Sometimes they might be found around ponds or in deep burrows that are covered by debris. They don't build webs to catch prey, instead they weave the silk to wrap their prey in, or to protect their young. They hunt at night, by ambushing their prey, or chasing it. Sometimes, in order to catch their prey, they camouflage themselves as bark or leaves. During breeding, the male performs a "dance" in front of the female, and makes a noise with its legs. If mating is successful, the female will begin to lay its eggs and build an egg sack out of silk, which she will use to carry her young in. When the spiderlings are born, they ride on the mother's back until they are old enough to be on their own. Rabid wolf spiders may bite if provoked, but their bite is not dangerous to humans. (Wikipedia)