An insect of the Curculionidae family (illustration) in the order Coleoptera. Native to North America, it was first discovered in Japan in 1976 in a rice paddy in Aichi Prefecture. This genus is distributed throughout North and South America, and about five species, including one that has invaded Japan, damage rice. The rice water weevil is called the rice water weevil in America, and is feared as a rice pest. The larvae damage the roots and are called root maggots. It is thought to have been brought to Japan on hay. The back of the adult is covered with fine gray-brown scales, with the center darker in color. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
甲虫目ゾウムシ科の昆虫(イラスト)。北アメリカ原産で,日本では1976年に愛知県の水田で発見されたのが最初である。この属は南・北アメリカに分布し,日本へ侵入した種を含め約5種がイネを加害する。イネミズゾウムシはアメリカではrice water weevilと呼ばれ,イネの害虫として恐れられている。幼虫は根を加害し,root maggotと呼ばれる。日本へは乾草についてもちこまれたと考えられている。成虫の背面は細かい灰褐色の鱗毛に覆われ,中央部は暗色を帯びる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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