Insect and Spider Identification: CLOSED: Fuzzy Fellows, 2 by Chillybean

Chillybean wrote:
This little caterpillar hitch hiked on me, so I do not know its host plant. This photo was taken 26 August. Later, I found a similar looking fellow chomping down on the Rough Blazing Star. Taken 7 September.

The look different enough that I hesitate to think they are the same species. Whether they are the same or not, can anyone tell me who they might be?

I was fun seeing all the different bugs on my flowers this year and I decided to try to identify what I could. Some successes, but what is posted here have befuddled me.