These are on my pots of bapitsia. I googled what hosted on baptisia and this is not indigo duskywing cats. I gotta feeling I'm not going to like the answer. Doesn't look like anything I'd want to keep. Tent worm maybe?
Indigo duskywing.......NOT!
Went through about 8 pages of moth & butterfly cats on http://mothphotographersgroup.msstate.edu/ before I found Genista Broom Moths. Looks like a match to me? Don't know if you have them in your area or not, though the climate seems right. Could be wrong. I'm pretty new at this, lol. I'll keep looking though.
Yes,that does look like them and we have a moth that looks like that in this area....Off With Their Heads!. Too bad I don't have chickens any more...they'd love them.