Calling all you caterpillar experts out there. While trying for macro photos of the goldenrod growing by my back porch today (yeah, the weeds really are this high around my house!), I discovered this caterpillar. I noticed it would rear up at me when I got too close.
Here are some close-up photos. Any ideas what it might be? Using one Internet site, I thought it looked like some type of looper, but it didn't make an inchworm-type loop while I was observing it.
Edit: I may have figured it out. A photo and link on "What's this bug?" led me to this photo on Bug Guide, and the following ID:
The caterpillar of the Goldenrod Hooded Owlet Moth. Its host plants are asters and, wait for it - goldenrod! Don't you love it when things come together?