Spiders in Illinois

Spiders found in Illinois include 32 unique species from confirmed sightings by contributing members of Spider ID. It is important to remember that spiders seen in Illinois are not bound by the territorial lines decided on by humans, therefore their distribution is subject to change. Occasionally, spiders can be found well outside of their known range due to being intentionally or accidentally transported by humans in cars, luggage, and other belongings.


32 Species Found in Illinois

Illinois Sightings
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Picture of unidentified spider Enlarge Picture
Picture of Lycosidae (Wolf Spiders) - Dorsal Enlarge Picture
Picture of Clubiona spp. (Leaf-curling Sac Spiders) - Dorsal Enlarge Picture
Picture of Platycryptus undatus (Tan Jumping Spider) - Dorsal Enlarge Picture
Picture of Coras spp. (Funnel Web Spiders) - Male - Dorsal Enlarge Picture
Picture of Amaurobius ferox (Black Lace-Weaver) - Male - Dorsal Enlarge Picture
Picture of Herpyllus ecclesiasticus (Eastern Parson Spider) - Dorsal Enlarge Picture
Picture of Dysdera crocata (Woodlouse Hunter) - Lateral Enlarge Picture
Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal Enlarge Picture
Picture of Pisaurina mira (Nursery Web Spider) - Dorsal Enlarge Picture
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Picture of Araneus diadematus (Cross Orb-weaver) - Dorsal Enlarge Picture
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Picture of Araneus marmoreus (Marbled Orb-weaver) - Dorsal Enlarge Picture
Picture of Trochosa ruricola - Female - Dorsal,Spiderlings Enlarge Picture
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Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture