Crickets Sound Effect download mp3 Ringtones, Katydids Sound at Night Ringtone download mp3, night sound effects mp3 free download, night insects sound effect free download, night cricket sound effect mp3 download. Evening insect displays, both audio and visual, in Aiken, South Carolina. The bursts of yellow lights are fireflies, the drone of sound is from crickets, and the pulsed calls are from katydids.