Parnassius glacialis

Japanese: ウスバシロチョウ(英語表記)Parnassius glacialis
Parnassius glacialis
Lepidoptera, Papilionidae. Forewing length 25-38mm. Wings are white and translucent with black spots. Body is covered with many long yellow hairs. Larvae feed on Corydalis family plants such as Corydalis rotundifolia and Corydalis frutescens. Adults appear around May-June. Flight is slow. Found in Hokkaido, Honshu, Shikoku, and also distributed in central Chugoku. There is a large amount of regional variation. A closely related species, P. stubbendorfii , can be distinguished by the grey hairs on its body. It is endemic to Hokkaido, and feeds on Corydalis frutescens and Corydalis frutescens.

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

Japanese:
鱗翅目アゲハチョウ科。前翅長 25~38mm。翅は白色半透明で黒色斑がある。体には黄色の長毛が多い。幼虫はムラサキケマン,エンゴサクなどのエンゴサク科植物を食べる。成虫は5~6月頃出現する。飛翔はゆるやか。北海道,本州,四国に産し,中国中部にも分布する。地域変異が多い。近縁種ヒメウスバシロチョウ P. stubbendorfiiは体の毛が灰色であることから区別できる。北海道固有種で,食草はエゾエンゴサク,エゾキケマンなど。

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