Evolutionary scientists have long thought that ears formed in insects in many regions of them, in response to batlike creatures with sonar for hunting. But recent finds in Green River formation have shown otherwise. As quoted from the Journal of Paleontology "Here we describe and document the exceptionally well preserved tympanal ears found in crickets and katydids from the Eocene Green River Formation of Colorado, which are virtually identical to those seen in modern representatives of these groups." and they went on “The fossil ears measured half a millimeter in length, and were virtually identical in size, shape, and position to their modern counterparts.”
And God said, Let the earth bring forth the living creature after his kind,
....and creeping thing, ....and it was
so. Genesis 1:24
See Bug Ears http://www.wfu.edu/biology/batsandbugs/bug_ears.htm