Archived posting to the Leica Users Group, 2009/09/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Their method of making that noise is interesting. They have a drum- head like diaphragm on either side of the body with 4 folds in it. Pulling on the diaphragm (with a muscle) causes 4 consecutive "banging" noises, like squeezing an empty plastic water bottle. They alternate doing the left and right side diaphragms, and that means two muscle contractions cause 8 loud banging noises. In the oaks down here in the Garden District, it sounds like people with chain saws. By the way, these are the bugs whose nymph stage lasts 17 years. After 17 years, the nymph crawls up the side of a tree, and later hatches out of a skin to become an adult cicada. The "shells" that someone mentioned is the cast-off nymph shell. Jeffery On Sep 3, 2009, at 12:08 PM, Jim Nichols wrote: > I came across this noisy insect on my way to the mail box this > morning. I have not yet established his identity. Can anyone help > identify this fellow? I should have stopped down further, but he > was not cooperative. > > http://gallery.leica-users.org/v/OldNick/Noisy+Insect.jpg.html > > Feedback appreciated. > > Jim Nichols > Tullahoma, TN USA > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information