A male Creatonotos gangis moth with four inflated coremata. The coremata (or hair-pencils) produce the pheromone hydroxydanaidal to attract their mates.
https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fgadik63%2Fvideos%2F707361412787259%2F&show_text=0&width=267 Native to Indonesia, Sri Lanka, Japan and parts of Australia, the species uses its unusual tentacles to produce a special pheromone designed to help it attract a mate. (Source: https://www.facebook.com/)
A male Creatonotos gangis moth with two coremata inflated. Coremata is the name of the organs at the end of the abdomen of male moths that can be everted to expose tufts of hair which disperse pheromones.