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出典:『Wikipedia』 (2011/05/14 19:04 UTC 版)

英語による解説

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The Variable Checkerspot or Chalcedon Checkerspot (Euphydryas chalcedona) is a species of butterfly, common in western North America from Alaska to Baja California and from the Rocky Mountains to the Pacific Ocean. A highly variable species, the wing upper surface is black to dark brown. The forewing is narrow and pointed compared to similar species. The wingspan is 32 millimetres (1.3 in) – 57 millimetres (2.2 in).