Tomato Horn Worm– also known as the Tobacco Horn Worm. Adults are very large, large enough to be confused as hummingbirds, with a 5″ wingspan. They are very fast flying hawk moths. Larvae are large and similar with seven diagonal stripes on the tobacco horn worm and eight curved stripes on the tomato horn worm. Larvae feed heavily on tomato and pepper foliage. This is a chewing insect.