Uraginhyomon (English spelling) High brown fritillary

Japanese: ウラギンヒョウモン - うらぎんひょうもん(英語表記)high brown fritillary
Uraginhyomon (English spelling) High brown fritillary

This butterfly belongs to the order Lepidoptera and the family Nymphalidae. It is found in the area from Hokkaido to Kyushu, and is commonly seen in mountain grasslands. It is rarely found in the plains of warm regions, even if it is found there. Outside of Japan, it is widely found in the northern part of the Eurasian continent, from the Korean Peninsula and northeastern China to Europe. Its wingspan is about 60-65 mm, and its surface is orange with many black spots, and its Japanese name "Hyomon" comes from this characteristic color. The underside of its hind wings has many silvery white spots, and its name "Uragin" comes from this characteristic. It appears once a year, appearing in warm regions from early May to early June. It hibernates during the hot summer months and hides, but reappears in autumn. In cold regions, it appears from late June to early July, and does not hibernate. The larvae feed on violets and other plants, such as the Polygonaceae plant, Polygonaceae. It is said that they overwinter as eggs or first instar larvae.

[Takashi Shiramizu]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

昆虫綱鱗翅(りんし)目タテハチョウ科に属するチョウ。北海道より九州に分布し、山地の草原に普通にみられる。暖地の平地の草原には、産する場合でも少ない。国外では朝鮮半島、中国東北部よりヨーロッパにかけてユーラシア大陸の北部に広く分布する。はねの開張60~65ミリメートル程度で表面は橙(だいだい)色、多数の黒点があり、和名の「ヒョウモン」はこの色調の特徴による。後ろばねの裏面には多くの銀白色の斑紋(はんもん)があり、「ウラギン」の名はこの特徴による。1年に1回発生し、暖地では5月上旬から6月上旬に出現する。真夏の高温期には夏眠して姿を潜めるが、秋になればふたたび現れる。寒冷地では6月下旬から7月上旬より出現し、夏眠の現象はみられない。幼虫の食草はスミレ類のほか、タデ科のクリンユキフデなども食べる。越冬態は卵あるいは1齢幼虫といわれている。

[白水 隆]

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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