Blue Milkweed Beetle

What a creative name for a blue beetle found on milkweed, huh?  This one's on a Showy Milkweed, Asclepias speciosa. I've seen them munching on the edges of the leaves, so apparently it doesn't bother them that the buds haven't opened yet.  The fragrance of the flowers of this milkweed are incredible, at least to humans, and it does seem that some invertebrates arrive only when the flowers are blooming.  I'm still looking for that image of two of these beetles mating.