Such long whiskers on this one. I could not find anything that would help me identify it as I moved on my liatris.
It's impossible to identify all the insects and their stages,
I read somewhere that even experts have their problems.
That is a hairy critter, wonder if it is one of those caterpillars who have hairs which can cause itching.
Very agile. Another one of those - see it once and never again.
Great photo. Good thing you only saw it once.
The next thing of course was that it turned into a pupae and then into what butterfly or moth? Can't have any of those winged visitors without caterpillars.
And life goes on.