Losaria coon, the common clubtail, is a species of butterfly within the family Papilionidae. It’s found in woodlands across East and Southeast Asia, most notably in China, India and Indonesia. Members of the species boast wingspans between 3.9 and 4.7 inches, and are sexually dimorphic with the females having slightly broader wings and shorter hindwing tails than the males. Both sexes are similar in colouration: dull-black forewings with pale patches between the veins, and deep-black hindwings with white patches all over the surface. There are small red patches along the lower perimeters, excluding the all-black spatulate tail from which the species’ common name is derived.