I have to admit that I'm a little disappointed with the lack of color among the visitors to my butterfly bushes. Besides the Eastern Black Swallowtail butterflies, the most common critters hanging around are the smaller Silver-Spotted Skippers.
they are neither butterflies nor moths, but are actually a third sort of big-winged insect that has characteristics in common with both. (I just found this out yesterday morning.)
I also find their coloration interesting. While the large white spot on the wings may serve to break up their overall outline, I can't shake the impression that they look like dark brown butterflies that have just been crapped on by a bird.
I have not paid close enough attention in the past to know what the cycles of insects are in my own back yard. Will there come a time when my butterfly bushes will be covered with Monarch butterflies? Will something even more remarkable than a hummingbird moth come swooping out of the sky? I don't know. But I will keep my eyes open, and my camera handy.