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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.

[Imitative of its sound.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) any typically green long-horned grasshopper of the genus Microcentrum and related genera, living among the foliage of trees in North America
[C18: of imitative origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkeɪ ti dɪd)

any of several large, usu. green, long-horned American grasshoppers, the males of which produce a characteristic strident song.
[1745–55, Amer.; imitative]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.katydid - large green long-horned grasshopper of North Americakatydid - large green long-horned grasshopper of North America; males produce shrill sounds by rubbing together special organs on the forewings
long-horned grasshopper, tettigoniid - grasshoppers with long threadlike antennae and well-developed stridulating organs on the forewings of the male
Anabrus simplex, mormon cricket - large dark wingless cricket-like katydid of arid parts of western United States
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
The full moon was about three hours above the eastern horizon; the entire countryside had the solemn stillness of a summer night; our footfalls and the ceaseless song of the katydids were the only sound aloof.
The house retains its evil reputation, but the replanted vine is as orderly and well-behaved a vegetable as a nervous person could wish to sit under of a pleasant night, when the katydids grate out their immemorial revelation and the distant whippoorwill signifies his notion of what ought to be done about it.
Finally, after darkness has fallen, the songs of cricket and katydid supplant those of the cicada." (Leonard Hall, "A Journal of the Seasons on an Ozark Farm")
Remarks.--This katydid is not uncommon in the understory of Kuala Belalong forest.
Photo Credits: Releasing a Tagged Monarch Butterfly courtesy of Door County Living 12 (bottom-Left); Bee, grasshopper, cicada, and katydid by Susan Richardson 20-21; Wikimedia Commons: by Mike Lewinski from Tres Piedras, NM, United States (Praying mantis) [CC BY 2.0] 4 (bottom-left); by Yogendra Joshi (Praying Mantis) [CC BY 2.0] 4 (bottom-right); by Marshal Hedin from San Diego [CC BY 2.0] 12 (bottom-right); by AlphaGeek (CC BY 2.0] 15 (bottom-right); by Katja Schulz from Washington, D.
This behavior is similar to that of other katydid species (Barrera et al.
Agile meadow katydid (Orchelimum agile): This southern species was found recently at Buzzard's Roost Nature Center in Ohio, at a latitude slightly south of Indianapolis.
(3) A colleague tells me that the word "katydid" is also a regional term for cicada.
One of the most famous works of art at the museum is the Jadeite Cabbage -- a piece of Jadeite carved into the shape of a Chinese cabbage head, with a locust and a katydid camouflaged in the leaves.
The book introduces a wealth of rarely featured bugs from tree crickets that "ring like a telephone," to the squeaking tiger moth, to the tick-tick-tick-ing, zee zee zee-ing bush katydid. Colorful pictures depict larger-than-life bugs that seem to hover and dance, and information at the end includes insect sound waves and ideas for imitations.
11 In the animal kingdom, a katydid is what type of insect: a grasshopper or a spider?
Another example is that of he North American katydid species Atlanticus gibbosus Scudder of which Rehn and Hebard (1907) state: "It possesses greater strength in the jaws than any other North American Orthopterous insect known to us.