Grass-Hoppers, or Tettigo-nice, L. are a family of inserts belonging to the genus of Gryllus, and comprising 69 species : they ail leap by the help of their hind legs, which are strong and much longer than the fore-legs. Though their walk is heavy, they fly occasionally with great speed: the females deposit several hundred eggs in clusters under ground, by means of two lamina; or plates appended to their tail, with which they penetrate the surface. The larvae that arise from them, resemble nearly the perfect insects, but are of a smaller size, and apparently destitute of wings : these, however, are enveloped in four excrescences or knobs, which are unfolded when the insect attains its full growth, after having four times changed its coat during the summer.

Grasshoppers do not abound in Britain, and indeed are seldom seen in any considerable numbers, on account of our variable climate. But, in the warmer countries of Asia, Africa, and Europe, especially in Spain, they commit incalculable damage, by destroying the whole' vegetation of a corn-field, in a short period of time. - The only method of extirpating these predatory vermin, hitherto known, is to destroy their eggs wherever they can be discovered in the ground, either in early spring or late autumn; for, as they multiply rapidly, the extermination of the winged insects alone would not be attended with the desired effect.— For this purpose, ditches two or three feet deep, may be formed in autumn, rilled with horse-dung, to which they are extremely partial, and the surface covered with a few inches of mould. In the following spring, numerous families of grasshoppers, with their eggs, will be found assembled in these ditches, where they may be readily de-stroyed. - See also Locust.