I heard on the radio this weekend a segment on insect songs. The authors of a book discussed the songs and the capturing of them. There is a "Listen" link available at the webpage below. The Thrill of the Trill: Capturing an Insect Symphony http://www.npr.org/templates/story/story.php?storyId=10661663 Weekend Edition Sunday, June 3, 2007 [Lang Elliott and Wil Hershberger's] new book, Songs of Insects, brings 77 species of crickets, katydids, grasshoppers and cicadas to life. A companion CD invites you to listen in.