Steatoda triangulosa
(Triangulate Cobweb Spider)

Picture ID 206457

Comments & ID Thoughts

It’s brown with a big ball on it with white spots

Submitted by:
daelynnlambert
Submitted: Dec 6, 2025
Photographed: Dec 6, 2025
Spider: Steatoda triangulosa (Triangulate Cobweb Spider)
Location: Bellevue, Nebraska, United States
Spotted Indoors: Garage or shed
Found in web?: No
Attributes:

2 Comments

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BugmanDan

December 7, 2025 1:31 pm

While I think this is a triangulate cobweb spider, it might be a brown widow. Any spiky egg sacs nearby would confirm the widow.
Species Steatoda triangulosa – BugGuide.Net

Last edited 5 months ago by BugmanDan

TangledWeb

Moderator

Reply to BugmanDan

December 11, 2025 5:32 pm

Definitely most likely to be a Triangulate Cobweaver. Sometimes their markings are off by about 90 degrees and the gold triangles go down the sides instead of the back of the spider. Daelynn, These are totally harmless. I have them throughout my house eating any bugs that come indoors. They can’t see well, probably just light and dark. They hunt by sensing vibration in their webs, not by sight.