Okay, not butterflies but I thought this was fascinating...
Lunch Line, Dinner Rush, Double Murders
what are those? is it "stabbing" the bumble bee? Tony
Arilus cristatus - Wheel Bug. See link for info.
Here is a link that might be useful: Arilus cristatus - Wheel Bug
"Are you going to eat all of that?"
Yes, they are wheel bugs. They are in the same family as assassin bugs. They are one of the largest true bugs in N. America. I see them once or twice a summer but this was unusual. Don't ever pick one up though...they have a very painful bite.
Here is a link that might be useful: wheel bug
"Come on. Say it one more time. I DARE you!"
Really cool bugs and a really nice pic!