Jumping spiders are compact in shape with short legs, causing them to sometimes be mistaken for black widow spiders. They are usually black in color and covered with dense hair or scales that are brightly colored. Jumping spiders are found throughout the United States. Jumping spiders build web retreats, which can be found both indoors and outdoors. These spiders frequently hunt inside structures around windows and doors because more insects are attracted to these areas and their vision is best in sunlit areas. Outside, jumping spiders are commonly seen running over tree bark, under stones and boards, and on bushes, fences, decks and the outside of buildings.
Jumping spiders may bite in defense, but their bite is not poisonous. In fact, this species is more likely to run from a human threat rather than attack.
Long-Bodied Cellar Spiders
Cellar spiders are pale yellow to light brown in color with long, skinny legs and a small body. There are about 20 species of cellar spiders found throughout the United States and Canada.
Cellar spiders are typically found in areas with high humidity and moisture, basements and crawlspaces. They can also be found in the corners of garages, sheds, barns and warehouses, on eaves, windows and ceilings, and inside closets, sink cabinets and bath-traps. Cellar spiders are not known to bite and therefore pose no threat to humans.
Wolf spiders are usually dark brown with paler stripes or markings, and they have long, spiny legs. This species is often large and hairy, which can alarm some people. More than 100 species of wolf spiders are found throughout the United States and Canada. Wolf spiders can enter structures in search of prey. Once inside, they tend to stay at or near floor level, especially along walls and under furniture. Wolf spiders may be brought indoors with firewood. Outside, this species can be found under stones, landscape timbers, firewood, leaves and other debris. They often rest in such sheltered places during the day. Wolf spiders can bite, but it’s extremely rare unless they are provoked or handled.