We get them too!!! I think it's either a cucumber or a potato beetle. Look underneath the leaf for eggs too. I've been spraying Cleide's famous neem oil+soap method. It hasn't been too bad since.
Thank you! Neem oil is working!
It’s a lesser colorado potatoe beetle. Do you have potatoe plants?
Oh thanks for the ID. We didn't plant any potatoes but they were all over a plant that could have been potatoes that we pulled out. They were also all over our tomatillos, but we ended up just pulling that plant out too.