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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.]


(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]


(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]
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


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.
Phases of the The Cricket and Katydid Moon, the Corn Harvest Moon and the Apple Cider Moon
Nymphs and adults of this katydid were collected, preserved in 70% alcohol and sent to the Laboratory of Systematics and Biology of Coleoptera, Department of Animal Biology of the Federal University of Vicosa, Brazil.
After gathering the creature up in a towel, I freed the katydid outside.
One locally distributed group of Roesel's katydid nymphs, found by the botany team, adds Conner Prairie to the known southern boundary of that species' range in Indiana.
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.
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.
When Dad drove the tractor home for the first time from Uncle Homer's and Mom saw him coming down the road, she said, "That looks like a Katydid coming down the road/' I've researched Katydids and frankly don't know how she came up with that, but the name stuck and it's been the Katydid ever since.