Quick Facts
Size Large range depending on species, commonly 1/5” to 1”
Color Range from black to white, rarely solid in color with different markings on their legs, abdomen, and cephalothorax
Body 2 main sections, abdomen and cephalothorax
Legs Yes, 8
Antennae No
Wings No
Eyes 8, used as a means of family identification based on arrangement
Can They Bite? Yes, they have pincer-like appendages, fangs and venom glands


  • Webs made from their spinnerets
  • In and around human habitation
  • Walls and corners of houses, garages, attics, sheds


  • Feed on other pests
  • Can bite but rarely are dangerous

With over 40,000 different species around the world spiders are very common and come in a wide variety of sizes and colors. Spiders in Wisconsin tend to be under 1” in size and are often found in houses or around areas of human habitation. They are considered to do more good than harm as they act as pest control.

Spider Habitat

The creatures prefer to spin their webs in protected areas such as corners and walls on houses, garages, and sheds. Using their spinnerets, Spiders drop from the ceiling and spin webs to catch other pests for consumption.

Spider Habits and Dangers

Though most Spiders are rarely dangerous and do not do much harm, many people find them to be a nuisance or suffer from arachnophobia. Some species are venomous, though most lack a strong enough jaw to break the skin, and those that bite only cause mild irritation. In addition to being creepy, the presence of Spider webs gives a feeling of uncleanliness.

Common Species Found in Wisconsin

There are over 43 unique species of Spiders in Wisconsin. Some of the most common Spiders found in the garden are Orb Weavers, Barn Spiders, Jumping Spiders, Wolf Spiders and Crab Spiders. Though all Spiders are venomous, only two types of poisonous Spiders have been found in Wisconsin, Brown Recluse and Northern Widow (Black Widow). Neither are native to Wisconsin and are extremely rare. The most common type found in the house in Wisconsin are the Common House Spider, Giant House Spider, Sac Spider, and Cellar Spider.

What to do if you think you have a Spider infestation

These are solitary creatures and rarely convene in one spot together, so an infestation is unlikely. Those that live near water may see an increase in Spider activity in and around the house as Spiders are feed on other pests that live near the water. If you have an issue with these pests in or around your home, give The Bug Man and Queen Bee a call! Our friendly office staff will give you an estimate over the phone and send someone out as soon as possible, sometimes the next day. We are a local, family-owned company and we pride ourselves on meeting and exceeding our customers’ expectations. Give us a call today to learn more about our Spider pest control services & to help protect your Milwaukee-area home!