Do butterflies make sounds?
Many butterflies have ears that they probably use to detect the sounds of approaching predators, but very few butterflies actually make sounds. One good example of a sound producing butterfly is the Hamadryas butterfly, sometimes called the ‘cracker’. It has little sound producing organs on its front wings that make cracklings sounds. They make these sounds when approached by a predator, perhaps using it as a warning sound. Sometimes they also use these sound during mating interactions, in which case they would be communicating. – Dr. Jayne Yack
Additionally, caterpillars can make sounds. Check out some of the videos from Dr. Yack’s research lab here which show caterpillars making their sounds.