Purple Spotted (English name) Apatura ilia

Japanese: コムラサキ（英語表記）Apatura ilia

A butterfly of the Nymphalidae family of the Lepidoptera order. Forewing length is about 36mm. The upper part of the wings is dark brown with orange markings, but the female's base color is pale yellowish brown. The upper part of the male's wings, except for the outer edge, shines a beautiful purple color depending on the angle from which it is viewed, but the female lacks this purple luster. Also, a type that is entirely black with a white orange band in the center of the wing, which at first glance appears to be a different species, is found only in central Honshu and central and southern Kyushu, and is specifically called the black purple butterfly. Adults appear two to three times a year. They overwinter as larvae. The larvae feed on willow leaves. They are distributed in Hokkaido, Honshu, Shikoku, Kyushu, Korea, northern China, Siberia, and Europe. The original subspecies is from Europe, and the one found in Japan is called the subspecies A. i. substituta .

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

鱗翅目タテハチョウ科のチョウ。前翅長 36mm内外。翅表は暗褐色地に橙色の斑紋があるが，雌の地色は淡く，黄褐色である。雄の翅表は，外縁部を除き，見る角度によって美しい紫色に光るが，雌ではこの紫色光沢を欠く。また，全体黒色で翅の中央にある橙色帯が白色になった一見別種のようにみえる型が本州中部と九州中南部にのみに産するが，これを特にクロコムラサキと呼ぶ。成虫は年2～3回出現する。幼虫で越冬する。幼虫はヤナギ類の葉を食べる。北海道，本州，四国，九州，朝鮮，中国北部，シベリア，ヨーロッパに分布する。原亜種はヨーロッパ産で，日本に産するものは亜種 A. i. substitutaという。

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