Grasshopper vs. Katydid - What's the difference?

Wikipedia

  • Grasshopper

    Grasshoppers are a group of insects belonging to the suborder Caelifera. They are among what is probably the most ancient living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshoppers are typically ground-dwelling insects with powerful hind legs which allow them to escape from threats by leaping vigorously. As hemimetabolous insects, they do not undergo complete metamorphosis; they hatch from an egg into a nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. At high population densities and under certain environmental conditions, some grasshopper species can change color and behavior and form swarms. Under these circumstances, they are known as locusts. Grasshoppers are plant-eaters, with a few species at times becoming serious pests of cereals, vegetables and pasture, especially when they swarm in their millions as locusts and destroy crops over wide areas. They protect themselves from predators by camouflage; when detected, many species attempt to startle the predator with a brilliantly-coloured wing-flash while jumping and (if adult) launching themselves into the air, usually flying for only a short distance. Other species such as the rainbow grasshopper have warning coloration which deters predators. Grasshoppers are affected by parasites and various diseases, and many predatory creatures feed on both nymphs and adults. The eggs are the subject of attack by parasitoids and predators. Grasshoppers have had a long relationship with humans. Swarms of locusts can have devastating effects and cause famine, and even in smaller numbers, the insects can be serious pests. They are used as food in countries such as Mexico and Indonesia. They feature in art, symbolism and literature.

Wiktionary

  • Grasshopper (noun)

    A herbivorous insect of the order Orthoptera noted for its ability to jump long distances and for its habit of communicating by stridulation.

  • Grasshopper (noun)

    A cocktail made with crème de menthe and optionally with crème de cacao.

  • Grasshopper (noun)

    a young student in initial stages of training who has been chosen on account of their obvious talent

  • Grasshopper (noun)

    In ordinary square or upright pianos of London make, the escapement lever or jack, so made that it can be taken out and replaced with the key.

  • Katydid (noun)

    A type of grasshopper, in the family Tettigoniidae.

Webster Dictionary

  • Grasshopper (noun)

    Any jumping, orthopterous insect, of the families Acrididæ and Locustidæ, having large hind legs adapted for leaping, and chewing mouth parts. The species and genera are very numerous and some are very destructive to crops. The former family includes the Western grasshopper or locust (Caloptenus spretus), noted for the great extent of its ravages in the region beyond the Mississippi. In the Eastern United States the red-legged (Caloptenus femurrubrum and C. atlanis) are closely related species, but their ravages are less important. They are closely related to the migratory locusts of the Old World. See Locust.

  • Grasshopper (noun)

    In ordinary square or upright pianos of London make, the escapement lever or jack, so made that it can be taken out and replaced with the key; - called also the hopper.

  • Grasshopper (noun)

    An antipersonnel mine that jumps from the ground to body height when activated, and explodes, hurling metal fragments over a wide area.

  • Grasshopper (noun)

    A mixed alcoholic beverage containing crème de menthe, light cream, and sometimes crème de cacao. The name comes from its light green color.

  • Katydid (noun)

    A large, green, arboreal, orthopterous insect (Cyrtophyllus concavus) of the family Locustidæ, common in the United States. The males have stridulating organs at the bases of the front wings. During the summer and autumn, in the evening, the males make a peculiar, loud, shrill sound, resembling the combination Katy-did, whence the name.

Princeton's WordNet

  • Grasshopper (noun)

    terrestrial plant-eating insect with hind legs adapted for leaping

  • Grasshopper (noun)

    a cocktail made of creme de menthe and cream (sometimes with creme de cacao)

  • Katydid (noun)

    large green long-horned grasshopper of North America; males produce shrill sounds by rubbing together special organs on the forewings

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