Pest ID library
Spiders and scorpions
Recluses, widows, jumpers and bark scorpions.
ID notes from the crew
Necrosis claims are debunked (Utah State and Montana State extension).
Confirmed in the LTK Discord · #the-hive-mind
Steatoda (false widow) is harmless. Solifugae (camel or sun spiders) are arachnids but neither spiders nor scorpions.
Confirmed in the LTK Discord · #the-hive-mind
Genus Centruroides; the species varies by state.
Confirmed in the LTK Discord · #the-hive-mind
From the field
11 photos posted by members. Tip: Always include a coin or a hand for scale, and freeze a specimen for a clear shot.
(opens full size in a new tab)Brown widow with spiky egg sacsLTK member · Jan 2025 
(opens full size in a new tab)Widow spider with red markingsLTK member · Feb 2025 
(opens full size in a new tab)Jumping spider eyes close-upLTK member · May 2026 
(opens full size in a new tab)Scorpion on glue board with quarterLTK member · Jan 2025 
(opens full size in a new tab)Orb weaver on stone ledgeLTK member · Nov 2025 
(opens full size in a new tab)Jumping spider on graniteLTK member · Nov 2025 
(opens full size in a new tab)Large spider on window screenLTK member · Mar 2026 
(opens full size in a new tab)Cobweb spider on stuccoLTK member · Jul 2026 
(opens full size in a new tab)Scorpion captured on glue boardLTK member · Jan 2025 
(opens full size in a new tab)Spiderling cluster on silkLTK member · May 2026 
(opens full size in a new tab)Scorpion on a cardboard boxLTK member · May 2025