Found in my basement, crawling out of a drain. North-east Ohio. I guess... Callobius bennetti?
You’re probably correct. I was going to say Amaurobius ferox, but I think your guess is closer. I have the A. ferox in my basement. They’re fun and harmless. Twitching their webs lighty gets them to stick their heads out of their niches to see what’s going on out there.
Actually, I think you might be right. The markings on the abdomen look more like A ferox examples online, and I think the lighting in the photo might misrepresent her true coloring. I’ll put her back, I think I’d rather have her around than whatever she’s been eating to get so big..