Illinois Spiders Identification Chart

Common Spiders in Illinois

Illinois is home to a diverse range of spider species, with over 500 different types found in the state. While some spiders can be harmful, most are harmless to humans and play an important role in the ecosystem. If you're interested in learning more about the spiders found in Illinois, this article is for you. We'll provide an overview of the most common species and offer tips on how to identify them.

One of the most common spiders found in Illinois is the house spider. These spiders are typically brown or gray in color and have a distinctive rounded abdomen. They are often found in corners, windows, and doors, and are known for their messy webs. Another common species is the wolf spider, which is large and hairy, with a distinctive gray or brown color. These spiders are often found in gardens and basements, and are known for their speed and agility.

How to Identify Spiders

In addition to the house spider and wolf spider, there are many other species found in Illinois. The black widow spider is one of the most recognizable, with its black body and distinctive red hourglass shape. The brown recluse spider is another common species, known for its brown color and distinctive violin-shaped mark. These spiders are often found in dark, secluded areas, and are known for their painful bites.

If you're trying to identify a spider, there are several things to look for. The first is the spider's body shape and color. Different species have distinctive markings and colors, which can help with identification. You should also look at the spider's web, if it has one. Different species spin different types of webs, which can be a key identifying feature. Finally, consider the spider's habitat and behavior. Different species are found in different environments, and have different habits and behaviors.