any of several large, green orthopteran insects (esp. family Tettigoniidae) having long, slender antennae and long hind legs: the male has highly developed stridulating organs on the forewings, that produce a shrill sound
"katydid." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/katydid>.
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Any of various orthopteran insects of the family Tettigoniidae, having long antennae and usually a green body, the male of which produces a shrill sound by rubbing together specialized organs on the forewings.