This might be clearer...

No, I didn't see those hairs. Just perfectly round tiny balls. I too thought maybe stink bugs, but there are so many kinds. I did an image search for all the keywords I could think of and didn't really see anything that was a perfect match. I found a few images that are very close, but nothing that I could be sure enough to make an id.

Some squash bugs do lay blackish eggs but they are usually more oval and spaced rather than clustered like that. It looks like some moth egg tight clusters I have seen - that would mean caterpillars on the way - but then why the white ones thrown in? You curious enough to wait and see? :-)

Dave

Yeah... and these are much smaller than any squash bug eggs I've ever seen. I might never have seen them - even checking for squash bug eggs every day - but a strong wind knocked the plants over and the leaves wound up upside down. I did leave them out there. I'll check on them frequently. Hopefully they hatch during day light so I can get good pics while they're still clustered and near the eggs. Sometimes the only way to learn something new is to experience it.

Looks like moth is the winner!

Oh yeah! Look like gypsy moth larvae. You have those?

Dave

I've seen them here and there in this area, but nothing like further north like around NE PA and Upstate NY. They're on one of the older squash leaves. I'll leave them be for a short time and see if they start forming webs.