A butterfly belonging to the family Pieridae in the order Lepidoptera of the class Insecta. It is a common species that is widely distributed from Hokkaido to the Nansei Islands, and outside Japan, it is found in the Korean Peninsula, China, Taiwan (mountainous areas), India (mountainous areas), and southern Russia. The wingspan is about 50 mm. The base color of the male's wings is always yellow, while the female has two types: yellow and white. The Japanese name means "crested yellow butterfly." It was once also called Otsunencho, but this name was given because the adult butterfly flies early in the spring, and it was mistakenly thought that it hibernates as an adult. It is one of the earliest butterflies to appear, along with the early spring cabbage white butterfly, and occurs two or three times a year in Hokkaido and four or five times a year in warm areas such as Kyushu. The larvae feed on various wild legumes, and are sometimes known as pests of soybeans. They hibernate winter as larvae and pupate in early spring. [Takashi Shiramizu] [Reference] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
昆虫綱鱗翅(りんし)目シロチョウ科に属するチョウ。北海道より南西諸島にわたり広く分布する普通種で、国外では朝鮮半島、中国、台湾(山地)よりインド(山地)、南ロシアにわたる。はねの開張は50ミリメートル内外。雄のはねの地色はつねに黄色、雌では黄色と白色の2通りがある。和名は「紋のあるキチョウ」の意である。かつて別名をオツネンチョウといったが、これは成虫(チョウ)が春早くから飛ぶために、成虫で越年すると誤認されたための名前。早春モンシロチョウなどとともにもっとも早く出現するチョウで、北海道あたりで年に2、3回、九州あたりの暖地では4、5回発生する。幼虫の食草は各種の野生のマメ科植物で、ときにダイズの害虫として知られる。幼虫の状態で冬を越し、早春に蛹化(ようか)する。 [白水 隆] [参照項目] |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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