Spiders in Iowa

Spiders found in Iowa include 10 unique species from confirmed sightings by contributing members of Spider ID. It is important to remember that spiders seen in Iowa 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.


10 Species Found in Iowa

Iowa Sightings
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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
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Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Parasteatoda tepidariorum (Common House Spider) - Dorsal Enlarge Picture
Picture of Dysdera crocata (Woodlouse Hunter) - Dorsal Enlarge Picture
Picture of Dolomedes spp. (Fishing Spiders) - Dorsal Enlarge Picture
Picture of Phidippus audax (Bold Jumper) - Lateral Enlarge Picture
Picture of unidentified spider Enlarge Picture
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Picture of Arctosa rubicunda - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of Steatoda spp. (False Widows) - Male - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Tigrosa helluo - Dorsal Enlarge Picture
Picture of Dysdera crocata (Woodlouse Hunter) - Lateral Enlarge Picture
Picture of Neoscona spp. (Spotted Orb-weavers) - Female - Eyes,Webs Enlarge Picture
Picture of Larinioides sclopetarius (Bridge Orb-weaver) - Female - Dorsal Enlarge Picture
Picture of Tigrosa grandis - Female - Dorsal Enlarge Picture
Picture of Argiope aurantia (Black and Yellow Garden Spider) - Female - Ventral,Webs Enlarge Picture
Picture of Hogna carolinensis (Carolina Wolf Spider) - Female - Dorsal,Spiderlings Enlarge Picture
Picture of Neoscona spp. (Spotted Orb-weavers) - Female - Ventral Enlarge Picture
Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Female - Egg Sacs,Eyes Enlarge Picture