According to Penn State's College of Agricultural Sciences, wolf spiders bite humans when they are mishandled or trapped next to the skin. Wolf spiders can bite if threatened, but their venom doesn't pose a serious danger to humans. (Image credit: Auscape/Contributor via Getty Images) Are wolf spiders dangerous? Female wolf spiders are typically larger than males.Ī wolf spider on Shark Bay in Western Australia. The Desertas wolf spider ( Hogna ingens) from Deserta Grande Island in the Atlantic Ocean is one of the largest wolf spiders and has a leg span of 4.7 inches (12 cm), according to the Bristol Zoological Society in England. Wolf spiders' size varies, and their body lengths range from about a quarter of an inch (0.6 centimeter) to over an inch (3 cm) long, not including their legs.
Their coloring is effective camouflage, helping them catch their prey and hide from predators.
Wolf spiders are usually brown, gray, black or tan, with dark markings - most commonly stripes, according to the Missouri Department of Conservation. Wolf spiders are especially common in grasslands and meadows, but they also live in mountains, deserts, rainforests and wetlands - anywhere they can find insects to eat, according to the University of Michigan's BioKids website. They live around the world and are found throughout the U.S. There are nearly 2,400 wolf spider species across 125 genera, according to the Integrated Taxonomic Information System (ITIS).
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