I would assume Anasa tristis
. Found a cluster of these on a squash plant. My smallest nymph looks different from any others on BugGuide.
I will link these for now. If anybody feels they should be unlinked please let me know. I just wanted to show all stages together. I can just include thumbnails if linking is a bad idea.
Below are some images of nymphs found under the same leaf as the adult: