Pictures from Digha
Picture taken by me at Digha.
Grasshoppers live all over the world in open grasslands, feeding on grass or any other available leafy vegetation, and sometimes causing serious damage to crops. They are essentially solitary and residential species, often abundant as individuals, but which may occasionally migrate. Poecilocerus pictus lives on Ak plant in India. The short-winged, lubber grasshopper, Romalea microptera or Brachystola magna, is commonly used for class study in U.S.A.
Certain kinds are known as locusts, particularly the gregarious and migratory forms, which are highly destructive. There are several species of locusts in the world. Locusta migratoria of the Old World occurs from eastern Europe to the Philippines. The desert locust (Schistocerca gregaria) extends from North Africa to north India. The Bombay locust (Cyrtacanthacris succinta) is confined to India. The chief North American species are the American locust (Schistocerca americana), the Carolina locust (Dissosteira carolina), and the Rocky Mountain locust (Melanoplus spretus). Sometimes, the locusts increase in such huge numbers that they travel long distances in swarms, become serious pests and cause incalculable harm to vegetation.
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