Steve spotted this beautiful moth on the wall of the maintenance building at work a few days ago. A few years back we watched an IO moth caterpillar walking across the Manistee River trail in Michigan. We can't seem to find the photo, but if you Google the name you will find loads of pictures. The caterpillar is covered in irritating spines equivalent to stinging nettles, but longer lasting. Even so, the caterpillar is equally beautiful. When the IO moth wings open two eye spots, one on each hing wing, are visible.