August 23, 2025 What a great surprise to find a caterpillar of a Monarch Butterfly (Danaus plexippus) on some Butterfly Weed (Asclepias tuberosa) yesterday. Quite a small caterpillar. It’s on the leaf of the Butterfly Weed, which is between 1/2 and 3/4 inch wide. The Monarch has four phases in its life; egg, larva, pupa,…