The caterpillar is definitely not a butterfly. At first glance I thought it was an armyworm, but it might be a cutworm, too. I didn't see an exact match in my book, but I've seen those guys before and they pretty much eat anything.
Now, the eggs are more interesting because they look like Io Moth eggs. I'm raising some Io Moths right now but I got them as caterpillars and never saw the eggs. Check a picture of them on Wikipedia:
https://en.wikipedia.org/wiki/...
Your plant looks familiar and it took me a few minutes to remember why. It looks like a type of Desmodium spp. that grows at MOSI. Not the little Desmodium whose seeds stick to your socks, but a big one that will get as tall as me.
