In Milwaukee's county grounds, near the Park and recreation Dept. headquarters just off I-45 in Milwaukee.
I thought the color here was very descriptive of this insect's life cycle, showing the transition from Summer into Fall with the beginning of yellow against green.
A Monarch Caterpillar feeding on it's main food source, the toxic Milkweed plant. Photographed during the Monarch migration along Milwaukee's Monarch Trail, a gathering area along the migration route of this beautiful insect.