When he got to thinking about his yellow spots he often flew away to the farmer's potato-fields, where the young Tomato Worms were feeding. He would fly around them and cry out: "Look at my yellow spots. Are they not fine?" Then he would dart away to the vegetable-garden and balance himself in the air over the tomato plants. The humming of his wings would make the Tomato Worms there look up, and he would say: "If you are good little Worms and eat a great deal, you may some day become fine Moths like me and have ten yellow spots apiece."
Sometimes he even went down to the corner where the farmer had tobacco plants growing, and showed his yellow spots to the Tomato Worms there. He never went anywhere else, for these worms do not care for other things to eat. Everywhere that he went the Tomato Worms exclaimed: "Oh! Oh! What beautiful yellow spots! What wonderful yellow spots!" When he flew away they would not eat for a while, but rested on their fat pro-legs, raised the front part of their bodies in the air, folded their six little real legs under their chins, and thought and thought and thought. They always sat in that position when they were thinking, and they had a great many cousins who did the same thing. It was a habit which ran in the family.
When other people saw them sitting in this way, with their real legs crossed under their chins, they always cried: "Look at the Sphinxes!" although not one of them knew what a Sphinx really was. And that was just one of their habits. This was why the Hawk-Moths were sometimes called Sphinx-Moths.
It was not kind in the Hawk-Moth to come and make the Tomato Worms discontented. If he had stayed away, they would have thought it the loveliest thing in the world to be fat green Tomato Worms with two sorts of legs and each with a horn standing up on the hind end of his body. That is not the usual place for horns, still it does very well, and these horns are worn only for looks. They are never used for poking or stinging.
Before the Hawk-Moth came to visit them, the Tomato Worms had thought it would be quiet, and restful, and pleasant to lie all winter in their shining brown pupa-cases in the ground, waiting for the spring to finish turning them into Moths. Now they were so impatient to get their yellow spots that they could hardly bear the idea of waiting. They did not even care about the long, slender tongue-case which every Tomato-Worm has on his pupa-case, and which looks like a handle to it.