Hummingbird and Butterfly Gardening: bugs on butterfly weed????, 1 by konkreteblond

konkreteblond wrote:
Branches, the cats you are seeing on carrots are Swallowtails, not Monarchs. Swallowtail host plants are anything in the carrot family like fennel and dill. Monarchs only eat milkweed. They probably crawled back over to their plant, or went and pupated.

Look at the cats closely the next time you have them. The Swallowtails are green, black, yellow, orange and white striped (varies) and have not antennae. The Monarch cats have 2 black antennae things on the front and back ends and are yellow and black striped.

It's great to have such a long growing season here but that gives the aphids a long time to live too.

This is a Black Swallowtail cat.