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GRASSHOPPER (Fr. sauterelle, `Ital. g...

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Originally appearing in Volume V12, Page 378 of the 1911 Encyclopedia Britannica.
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GRASSHOPPER (Fr. sauterelle, `Ital. grillo, Ger. Gras/U:114er, Heuschrecke, Swed. Grdshoppa)  , names applied to orthopterous See also:insects belonging to the families Locustidae and Acridiidae . They are especially remarkable for their saltatory See also:powers, due to the See also:great development of the See also:hind legs, which are much longer than the others and have stout and powerful thighs, and also for their stridulation, which is not always an attribute of the male only . The distinctions between the two families may be briefly stated as follows: The Locustidae have very See also:long See also:thread-like antennae, four-jointed tarsi, a long ovipositor, the auditory See also:organs on the tibiae of the first See also:leg and the stridulatory See also:organ in the wings; the Acridiidae have See also:short stout antennae, three-jointed tarsi, a short ovipositor, the auditory organs on the first abdominal segment, and the stridulatory organ between the posterior leg and the wing . The See also:term " See also:grasshopper " is almost synonymous with See also:LOCUST (q.v.) . Under both " grasshopper " and " locust' " are included members of both families above noticed, but the See also:majority belong to the Acridiidae in both cases . In . See also:Britain the term is chiefly applicable to the large See also:green grasshopper (Locusta or Phasgonura viridissima) See also:common in most parts of the See also:south of See also:England, and to smaller and much better-known See also:species of the genera Stenobothrus, Gomphocerus and Teltix, the latter remarkable for the great See also:extension of the pronotum, which often reaches beyond the extremity of the See also:body . All are See also:vegetable feeders, and, as in all orthopterous insects, have an incomplete See also:metamorphosis, so that their destructive powers are continuous from the moment of emergence from the See also:egg till See also:death . The migratory locust (Pachytylus cinerascens) may be considered only an exaggerated grasshopper, and the Rocky See also:Mountain locust (Caloptenus spretus) is still more entitled to the name . In Britain the species are not of sufficient See also:size, nor of sufficient numerical importance, to do any great damage . The See also:colours of many of them assimilate greatly to those of their habitats; the green of the Locusta viridissima is wonderfully similar to that of the herbage amongst which it lives, and those species that frequent more arid spots are protected in the same manner . Yet many species have brilliantly coloured under-wings (though scarcely so in See also:English forms), and during See also:flight are almost as conspicuous as butterflies .

Those that belong to the Acridiidae mostly See also:

lay their eggs in more or less cylindrical masses, surrounded by a glutinous secretion, in the ground . Some of the Locustidae also lay their eggs in the ground, but others See also:deposit them in fissures in trees and See also:low See also:plants, in which the See also:female is aided by a long flattened ovipositor, or See also:process at the extremity of the See also:abdomen, whereas in the Acridiidae there is only an apparatus pf valves . The stridulation or " See also:song " in the latter is produced by See also:friction of the hind legs against portions of the wings or wing-covers . To a practised 'See also:ear it is perhaps possible to distinguish the " song " of even closely allied species, and some are said to produce a See also:sound differing by See also:day and See also:night .

End of Article: GRASSHOPPER (Fr. sauterelle, `Ital. grillo, Ger. Gras/U:114er, Heuschrecke, Swed. Grdshoppa)
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