Insect and Spider Identification: Creepy nest found under our couch, 3 by confusedrenter

confusedrenter wrote:
Hello, I hope you can help me! My husband and I recently found what looks like a bug nest under our couch. It almost looks like a dung beetle nest, but we live in Illinois! It is a round, hard ball and looks like it is made of dung or mud and sawdust. I cracked it open a bit and found some tiny dead insects, about the size of one of those colored pinheads. They are a reddish brown color.

We often clean under our couch and have never seen this before!! We are really shocked and nervous about it. Please let me know if you have ever seen anything of the sort.

Thank you so much!

Sarah

P.S. the ball appears to have some seeds in it as well.