A butterfly belonging to the family Lycaenidae in the order Lepidoptera of the class Insecta. In Japan, this butterfly inhabits evergreen broad-leaved forests in warm regions south of the Kanto region, but its habitat is limited, and it is known to be found in the prefectures of Chiba, Nara, Mie, Wakayama, Shimane, Yamaguchi, Ehime, Kochi, Fukuoka, Oita, Kumamoto, Miyazaki, and Kagoshima, as well as two islands in the Oki Islands and Yakushima. This species, found on Mt. Kasuga in Nara Prefecture, has been designated a national natural monument since 1932 (Showa 7), but is now said to be extinct. Outside of Japan, it is found in Taiwan (mountainous areas), western China, and the Himalayas. The Japanese name is named after the American missionary H. Loomis, who first discovered the Japanese subspecies. The wingspan is about 25-29 mm. It resembles the common purple hairtail, but is smaller, and the upper part of the wings is blue, not purple. Usually, they emerge three times a year (June, August, and September), and those that emerge in autumn overwinter in their adult form (butterfly state). The larvae feed on evergreen oaks such as Quercus salicina and Quercus salicina, and there are reports that they also eat Quercus acutissima and Quercus glauca in the wild. [Takashi Shiramizu] ©Shogakukan "> Major species of Lycaenidae (2) [Specimens... Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
昆虫綱鱗翅(りんし)目シジミチョウ科に属するチョウ。日本では関東地方以南の暖地の照葉樹林に生息するチョウであるが、その生息地は限られており、千葉・奈良・三重・和歌山・島根・山口・愛媛・高知・福岡・大分・熊本・宮崎・鹿児島の諸県、および隠岐(おき)諸島・屋久(やく)島の二島にその産地が知られている。奈良県春日(かすが)山の本種は1932年(昭和7)以来、国の天然記念物に指定されているが、現在ではすでに絶滅したといわれている。国外では台湾(山地)、中国西部、ヒマラヤに分布する。 和名は、日本産亜種の最初の発見者、アメリカの宣教師ルーミスH. Loomisにちなむ。はねの開張は25~29ミリ程度。普通のムラサキシジミに似ているが、それよりも小形、はねの表の色彩は青色で紫色を帯びない。普通、年3回の発生(6月、8月、9月)で、秋に羽化したものは成虫態(チョウの状態)で冬を越す。幼虫の食草はイチイガシ、ウラジロガシなどの常緑性のカシ類、自然状態でアカガシやアラカシも食べる報告もある。 [白水 隆] ©Shogakukan"> シジミチョウ科のおもな種類(2)〔標本… 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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