Steatoda borealis

Picture ID 4725

Picture of Steatoda borealis - Lateral,Ventral

Comments & ID Thoughts

I’m from Vernon, CT USA. I have spotted this spider several times in my bathroom upstairs. This spider is small, no bigger than a penny when its legs are naturally extended as far as they can be. Essentially a spider’s resting leg position. It’s got these little bowling ball hands and it makes me smile. And I say hands because they’re typically moving and it looks like they’re feeling as they walk around. I’ve spotted this spider in the dry sink (as pictured, we have two sinks in there and that sink is the one we just don’t use. So it’s usually bone dry), and I’ve spotted it on the ceiling above the shower area crawling along away from the shower. It appears to swing from web to web when it’s on the ceiling. I’m unsure if it’s because we have popcorn ceiling and they can’t hold on, or if it’s because they like swinging. I hope this helps figure out who my mystery spider is.

-Aidan, 21

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Hi, welcome to Spider ID. 🙂 Your spider looks like a penultimate (one molt from maturity) male Steatoda borealis. The “bowling ball hands” are pedipalps, when they’re enlarged it usually means it’s a male spider.

Additional Pictures

Picture of Steatoda borealis - Ventral Enlarge Picture
Picture of Steatoda borealis - Male - Dorsal Enlarge Picture
Picture of Steatoda borealis - Dorsal Enlarge Picture
Picture of Steatoda borealis - Dorsal Enlarge Picture