Monarch Caterpillar and Anchor Stink Bug - Stiretrus anchorago
Wildwood Park; Radford, Virginia, USA
August 6, 2010
Size: about 1/2 in.
The monarch caterpillar was being chased around the swamp milkweed stem. The cat kept turning its head back as if it were nipping at the bug. What is the bug, please? What info can you give me about this chase?