I know the “Grape Leaf Skeletonizer” sounds like the perfect ghoul for Halloween. Indeed, this unwelcome trick-or-treater did come dressed in the most fabulous costume.
I was outside arranging my grape vines and enjoying the cooler weather when I came upon these lovely caterpillars. They are Grape Leaf Skeletonizers (Harrisina metallica). Despite their beauty, they are unwelcome visitors to my garden. (Especially since I spent the summer picking caterpillars off my defoliated passion vine.)