What's That Bug? does not endorse extermination

Strange Jars
Hi,
My name is Thomas, I am in the 7th grade. I found these outside attached to a laundry line. I was wondering if you know what insect made these strange jars? Thank you very much.
Thomas Salinas
Bakersfield, California.

Hi Thomas,
These are Potter Wasp Pots. Potter Wasps, Eumenes species, construct these pots from mud and provision them with paralyzed caterpillars. Each pot then contains a single wasp egg and the growing wasp larva will feed on the caterpillars. Thanks for sending your great photo.

What's That Bug? does not endorse extermination
Location: Bakersfield, California

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