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Schistocerca Cancellata
''Schistocerca cancellata'' is a species of locust in the subfamily Cyrtacanthacridinae The Cyrtacanthacridinae are a subfamily of Orthoptera: Caelifera in the family Acrididae. They are sometimes referred-to as bird locusts, ''criquets voyageurs'' in French-speaking Africa, and ''Knarrschrecken'' in German. It includes species o .... It is the major swarming species in subtropical South America. This species shows typical locust phase polymorphism. Solitarious nymphs are green, but gregarious ones are yellow with a black pattern. There are morphological differences between solitarious and gregarious adults. For many years the two phases were believed to be different species and the gregarious form was mistakenly identified as S. paranensis. The solitary phase is found in South America between 18°S and 35°S. Plagues originate in a desert and semi-desert zona permanente in NW Argentina, SE Bolivia and W Paraguay, when good rains allow successful breeding, followed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Guillaume Audinet-Serville
Jean Guillaume Audinet-Serville (; his name, before the Revolution, included a particle: Audinet de Serville) was a French entomologist, born on 11 November 1775 in Paris. He died on 27 March 1858 in La Ferté-sous-Jouarre. He was introduced to entomology by Madame de Grostête-Tigny who was fascinated, like her husband, by chemistry and insects. Through her, Audinet-Serville met Pierre André Latreille (1762–1833). Latreille worked with him on the ''Dictionnaire des Insectes de l’Encyclopédie méthodique'' ("The Methodical Encyclopedia Dictionary of Insects"). Then, working with Guillaume-Antoine Olivier (1756–1814), he finished the book ''Faune française'' ("French Fauna") in 1830. Audinet-Serville is particularly known for his work on the Orthoptera. He published, ''Revue méthodique de l’ordre des Orthoptères'' ("Methodical Review of the Order of Orthoptera") which appeared in ''Annales des sciences naturelles'' in 1831. Then, in 1839, in the series of works entit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locust
Locusts (derived from the Vulgar Latin ''locusta'', meaning grasshopper) are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances they become more abundant and change their behaviour and habits, becoming gregarious. No taxonomic distinction is made between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions; this has evolved independently in multiple lineages, comprising at least 18 genera in 5 different acridid subfamilies. Normally, these grasshoppers are innocuous, their numbers are low, and they do not pose a major economic threat to agriculture. However, under suitable conditions of drought followed by rapid vegetation growth, serotonin in their brains triggers dramatic changes: they start to breed abundantly, becoming gregarious and nomadic (loosely described as migrator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyrtacanthacridinae
The Cyrtacanthacridinae are a subfamily of Orthoptera: Caelifera in the family Acrididae. They are sometimes referred-to as bird locusts, ''criquets voyageurs'' in French-speaking Africa, and ''Knarrschrecken'' in German. It includes species of locusts, short-horned grasshoppers that undergo phase polymorphism and are among the most important pests of sub-Saharan Africa; they include the desert locust and the red locust, with the related Bombay locust in Asia. One of the characteristics of members of this subfamily is the prominent peg between the forelegs: hence the name for the Australian Spur-throated locust. Genera The following genera have been included with a single tribe separated: Cyrtacanthacridini Auth. Kirby, 1910; worldwide distribution (mostly tropical and sub-tropical) # ''Anacridium'' Uvarov, 1923 # ''Chondracris'' Uvarov, 1923 # ''Cyrtacanthacris'' Walker, 1870 # ''Nomadacris'' Uvarov, 1923 - monotypic ''N. septemfaciata'' # ''Ornithacris'' Uvarov, 1924 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthoptera Of South America
Orthoptera () is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā. The order is subdivided into two suborders: Caelifera – grasshoppers, locusts, and close relatives; and Ensifera – crickets and close relatives. More than 20,000 species are distributed worldwide. The insects in the order have incomplete metamorphosis, and produce sound (known as a "stridulation") by rubbing their wings against each other or their legs, the wings or legs containing rows of corrugated bumps. The tympanum, or ear, is located in the front tibia in crickets, mole crickets, and bush crickets or katydids, and on the first abdominal segment in the grasshoppers and locusts. These organisms use vibrations to locate other individuals. Grasshoppers and other orthopterans are able to fold their wings (i.e. they are members of Neoptera). Etymology The name is derived from the Greek ὀρθός ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
