I thought at first they were monarchs because I have them on my orange milk weed. Then my brain said, nope they are not black and white. I guess the orange and black caterpillar had my brain confused. Once I thought about this, I tried searching for them but just can't find anything.
I think I will send it to Ext service. I was a Master Gardener for about 5 years, they have some great services at the Ext Office. More than most people realize. Thanks Michele and blessings, Mona