Black and Yellow Garden Spider with Egg Sac

I would also consider adding this to the missions for Urban Biodiversity and Midwestern Gardens.

These are so cool. Argiope aurantia, "writing spider", or "black and yellow garden spider" as you labelled it. I believe Charlotte in "charlotte's web" is one of this species, because of their zig zagging webs, it appears they write! Very intriguing!