During autumn in Maine, the leaves aren’t the only colorful things on the landscape. Crawling through the cool grass, caterpillars of all shapes and shades are on the move, and many of them are quite flashy. “There’s the spotted yellow tussock and the milkweed tussock, which I think looks like it’s had a bad hair day,” said Charlene Donahue, president of the Maine Entomological Society. With long orange, black and white hairs sticking out in all directions, it does appear that the milkweed tussock just rolled out of bed.