Papilio rutulus can reach a wingspan of 3 to 4 in. These large butterflies are brightly colored. The wings are yellow with black stripes and blue and orange spots near their tail. They have the "tails" on the hindwings that are often found in swallowtails.
Dragonflies are predators, both in their aquatic larval stage, when they are known as nymphs or naiads, and as adults. Several years of their lives are spent as nymphs living in fresh water; the adults may be on the wing for just a few days or weeks.