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| Locusta migratoria manilensis : ウィキペディア英語版 | Locusta migratoria manilensis
''Locusta migratoria manilensis'', commonly known as the Oriental migratory locust, is a subspecies of the migratory locust (''L. migratoria'') in the family Acrididae. It is sufficiently different in size and structure from the African migratory locust to be considered a distinct subspecies of the migratory locust. It is found in southeastern Asia and is an important agricultural pest in the region. It is normally a solitary insect but when conditions are suitable, it enters into a a gregarious phase when the young form into bands which move together and the adults into swarms. Although outbreaks may have recently been fewer in number and size because of changes in agricultural practices and better locust detection, the insects remain active as crop pests and the potential for outbreaks is still present. ==Description== The Oriental migratory locust is slightly smaller than the African migratory locust. It can exist in two phases, solitary and gregarious. The solitary adults are either green or brown, but as the insects become more crowded together, then brown individuals predominate. The nymphs or hoppers are greyish-brown when they first hatch but their colour changes to either green or brown as they grow, with brown being more common in dry conditions. When their densities increase and they begin to form hopper bands, the colour becomes orangeish-brown or reddish-brown, with black markings.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Locusta migratoria manilensis」の詳細全文を読む
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