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.
Katydids play a very important role in nature's web of life.
Human-caused changes in land use are escalating, and this affects the natural habitat required by katydids and other animals for survival. Vast forests are being removed for timber or other paper products, and industrial emissions are polluting water and air resources. Additionally, habitat is rapidly converted by expanding human communities and agricultural needs. It's only a matter of time until many insect species populations will become severely reduced, or eliminated. Humans need insects.