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Black widow?
Take a look at the images of the False Black Widow: http://bugguide.net/node/view/6932/bgima... It may help you decide for or against our suggestion. I didn't know about them until Project Noah! :)
Maybe not a brown widow but a black widow. I couldn't get a shot of its belly. I don't think there was any red hourglass though, so I could see how it might be a false widow. I didn't know there was such a thing;0)
Now that you've added the egg sac images, I'd say it's definitely not a brown widow.
I agree. I have a similar spotting that includes the egg sac: http://www.projectnoah.org/spottings/787...
I thought the same thing when I saw it. Doesn't look like widow since it has no evidence of markings to identify it as such (red markings).
It may be a false brown widow. Do you have any other images?
http://bugguide.net/node/view/6932