Subject: What is this?
Location: Northern Ohio
September 21, 2015 4:35 am
We found this next to our raised garden. I’ve never seen anything like it. Is it a spider or what? The “vase looking” nest is interesting, too.
You are correct that this Egg Sac was made by a spider, and if you look closely at the roundish white and brown object at the bottom of the Egg Sac, you can make out the body of the female Bolas Spider in the genus Mastophora that is guarding the Egg Sac. The female Bolas Spider is an excellent bird dropping mimic, and she can be expected to lay several more Egg Sacs before dying at the onset of cold weather. Bolas Spiders like other Orbweavers are considered harmless, yet beneficial creatures in the garden.