Spiders in Illinois

Spiders found in Illinois include 28 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.


28 Species Found in Illinois

Illinois Sightings
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Picture of unidentified spider Enlarge Picture
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Picture of Agelenidae (Funnel Weavers) - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
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Picture of Tigrosa helluo Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of Rabidosa punctulata (Dotted Wolf Spider) - Dorsal Enlarge Picture
Picture of Tigrosa helluo - Male - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
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Picture of Trachelas tranquillus (Broad-faced Sac Spider) - Dorsal Enlarge Picture
Picture of Araneus trifolium (Shamrock Orb-weaver) - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Agelenopsis spp. (Grass Spiders) - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
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Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
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Picture of Neoscona crucifera (Hentz Orb-weaver) - Dorsal,Webs Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of Dysdera crocata (Woodlouse Hunter) - Dorsal Enlarge Picture
Picture of Tetragnatha spp. - Dorsal 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
Picture of Araneus diadematus (Cross Orb-weaver) - Dorsal,Webs Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Araneus diadematus (Cross Orb-weaver) - Dorsal Enlarge Picture
Picture of Larinioides sclopetarius (Bridge Orb-weaver) - Dorsal,Webs Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Araneus marmoreus (Marbled Orb-weaver) - Lateral Enlarge Picture
Picture of Trachelas tranquillus (Broad-faced Sac Spider) - Dorsal Enlarge Picture
Picture of Argiope aurantia (Black and Yellow Garden Spider) - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture