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Project Noah Nature School
Forest
If you look closely at the fore tibia, you can see the katydid's tympanal organ.
Species ID is achievable only with a close-up of the subgenital plate of the male (hidden by wings over abdomen in this nice image)....Yes, "ear" is hole in front leg. Sound made by stridulatory file and scraper seen easily in this image (look at his "shoulders").
I'lllook at it again--there was a bigger emphasis on grasshoppers in what I was reading about tympanal organs. Thanks (tympanal: great Scrabble word).
As I understand it, katydids produce sound from organs behind their front wings.
Spotted on Jul 8, 2011
Submitted on Aug 7, 2011
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