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- Submitted by:
- Submitted: Feb 2, 2018
- Photographed: Feb 2, 2018
- Spider: Steatoda triangulosa (Triangulate Cobweb Spider)
- Location: Niagara Falls, Ontario, Canada
- Spotted Indoors: Other
- Found in web?: No
- Attributes: Dorsal
Steatoda triangulosa
(Triangulate Cobweb Spider)
Picture ID 4912
Additional Pictures
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Steatoda triangulosa
(Triangulate Cobweb Spider)
Family
Genus
Species
- Submitted
Oct 18, 2025 - Photographed
Oct 18, 2025 
4 Comments
Berea, 
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Steatoda triangulosa
(Triangulate Cobweb Spider)Family
Genus
Species
- Submitted Jun 3, 2026
- Photographed Jun 3, 2026
- 2 Comments
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Steatoda triangulosa
(Triangulate Cobweb Spider)Family
Genus
Species
- Submitted Dec 6, 2025
- Photographed Dec 6, 2025
- 2 Comments
Enlarge Picture
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Steatoda triangulosa
(Triangulate Cobweb Spider)Family
Genus
Species
- Submitted Nov 11, 2025
- Photographed Nov 11, 2025
- 1 Comments
Hi, welcome to Spider ID. 🙂 This is a Triangulate Cobweb Weaver (Steatoda triangulosa).
Thank you! It came along with a piano we acquired from a house being reno’d and I had no idea if it was something to be concerned about. Sounds harmless.