Since they have such a short lifespan, most katydids' social behavior involves courtship and mating. Predators include birds and some amphibians. As a defense strategy against predators, katydids use their coloration as camouflage. If they are spotted by a predator, regardless of their coloration, katydids will take flight as a means of escape. In hopes of luring a mate, one forewing of the male has an area much like a file that is quickly rubbed against a scraper area on the other forewing.
Male katydids can even control the loudness of their music.
To produce a louder sound, they slightly raise their forewings, forming a small cavity in which the sound resonates and increases in volume. Unlike most other katydid species, female angular-winged katydids respond to males with a soft song telling of their willingness to mate. Humans even imitate the female's call in hopes of encouraging males to sing their romantic serenade, which is a pleasure to hear. There are many species of katydids in the rain forest. The eardrums of a katydid are located in its front legs.