Can you tell which is which? If you find these two chrysalises, or just one of them, will you know what species of butterfly you found?
The good news is that it really doesn’t matter. Either leave it where you found it or take it home and care for it and allow it to emerge and release it. You’ll find out what it is when it emerges.
For some of us, we aren’t that patient. We want to know NOW.
In this case, the chrysalis on the left is an Eastern Tiger Swallowtail and the chrysalis on the right is a Black Swallowtail. But be aware; there are other species that become chrysalises that are similar in appearance.