A Giant Purple Butterfly
(Aug.8, Fujimi-shi, Saitama-ken)
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This picture is a female of gOmurasaki"(Sasakia charonda Hewitoson), means a giant purple butterfly. A male butterfly has wings glittering in purple and they said it is the most beautiful butterfly in Japan.
An Omurasaki lives in the thicket because it eats leaves during a larva and sucks sap when it becomes an imago. Once we could see them almost the whole area of Japan but we rarely see them now because a thicket are diminishing due to development. Omurasaki is so sensitive to the change of the environment that it would disappear first if people cultivate the thicket.

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