A butterfly.....seed?

Well, summer has been moving along quite nicely and way too quickly for my liking! The other day I was out at my grandparents house and found a butterfly egg on a milkweed leaf. I was pretty excited since this is the first egg I've found this year. During the process of getting the egg home, it acquired a new name......a butterfly seed! Haha! Now, the "seed" has hatched and I have a very hungry caterpillar that is super tiny (about half the size of my pinky fingernail), but I can now see the yellow and black stripes on his back! I should definitely go find some milkweed posthaste! I'll try to post some pictures eventually.