comma butterfly
US /ˈkɑː.mə ˌbʌt.ɚ.flaɪ/
UK /ˈkɑː.mə ˌbʌt.ɚ.flaɪ/

1.
コンマチョウ
a butterfly (Polygonia c-album) with reddish-brown wings marked with black and orange, and a distinctive white mark on the underside of each hindwing resembling a comma
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The comma butterfly is often seen in gardens and woodlands.
コンマチョウは庭や森でよく見られます。
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The distinctive white mark on the hindwing gives the comma butterfly its name.
後翅の独特な白い模様がコンマチョウの名前の由来です。