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Comments & ID Thoughts
I took this photo outside Lewis and Clark Caverns in Montana. Spider was under an inch across. It was on the ground. Perhaps an orb weaver?
- Submitted by:
- Submitted: Apr 7, 2018
- Photographed: Sep 17, 2017
- Spider: Araneus gemmoides (Cat-faced Spider)
- Location: Lewis and Clark Caverns, Montana, Montana, United States
- Spotted Outdoors: Man-made structure (building wall, fences, etc.),Ground layer (leaf litter, dirt, grass, etc)
- Found in web?: No
- Attributes: Dorsal
Nov 6, 2023
Nov 6, 2023
Denver, 
The closest spider that I know of is the catface spider, Araneus gemmoides. It isn’t normally so bright yellow-orange and the projections aren’t so bulbous.
You might compare to genus Mastophora (Bolas Spiders). I have just not seen one so spiny
Yes, one of the orb weavers.
https://bugguide.net/node/view/54460/bgimage
Thank you! I didn’t know that genus of orbweavers existed.