There are more than 500 different kinds of spiders in Illinois, living in a variety With spiders, identifying the species may not be necessary, but it is important to .Top. You may also view all the images in the gallery. Wolf Spider Hognauo . Forest Wolf Spider Gladicosa gulosa . Dotted Wolf Spider Rabidosa .Spiders found in Illinois include 22 unique species from 94 confirmed sightings based on contributions 22 Species Found in Illinois Help identify this spider..