Spiders in Idaho

Spiders found in Idaho include 7 unique species from 36 confirmed sightings based on contributions made by Spider ID members. It is important to remember that spiders seen in Idaho 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.


7 Species Found in Idaho

Idaho Sightings
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36 spider sightings have been made in Idaho by contributing members. Consider submitting confirmed sightings of your own.

Picture of unidentified spider Enlarge Picture
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Picture of Steatoda triangulosa (Triangulate Cobweb Spider) - Dorsal,Webs Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Cheiracanthium mildei (Long-legged Sac Spider) - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Eutichuridae (Prowling Spiders) - Dorsal Enlarge Picture
Picture of Phidippus audax (Bold Jumper) - Dorsal Enlarge Picture
Picture of Eutichuridae (Prowling Spiders) - Ventral,In Retreat Enlarge Picture
Picture of Eutichuridae (Prowling Spiders) - Lateral Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Sergiolus montanus - 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 Trochosa ruricola - Dorsal Enlarge Picture
Picture of Steatoda triangulosa (Triangulate Cobweb Spider) - Dorsal Enlarge Picture
Picture of Cheiracanthium mildei (Long-legged Sac Spider) - Male - Dorsal Enlarge Picture
Picture of unidentified spider Enlarge Picture
Picture of Tibellus spp. (Slender Crab Spiders) - Lateral Enlarge Picture
Picture of Tegenaria domestica (Barn Funnel Weaver) - Dorsal Enlarge Picture
Picture of Steatoda triangulosa (Triangulate Cobweb Spider) - Dorsal Enlarge Picture
Picture of Steatoda triangulosa (Triangulate Cobweb Spider) - Lateral Enlarge Picture
Picture of Agelenidae (Funnel Weavers) - Dorsal Enlarge Picture
Picture of Sergiolus montanus - Dorsal Enlarge Picture
Picture of Steatoda triangulosa (Triangulate Cobweb Spider) - Dorsal Enlarge Picture
Picture of Phidippus audax (Bold Jumper) - Dorsal,Prey Enlarge Picture
Picture of Theridiidae (Cobweb Weavers) - Dorsal Enlarge Picture
Picture of Neoscona oaxacensis (Western Spotted Orb-weaver) - Male - Dorsal,Webs Enlarge Picture