Jamides Celeno (Common Cerulean)?? 小白波紋小灰蝶（コシロウラナミシジミ）？？

Japanese follows English. 英語の後に日本語が続きます。

This looks like Jamides celeno or more commonly a common cerulean butterfly, but it can't be. Common ceruleans should be only in Taiwan. But still, this butterfly really resembles the common cerulean...

When I first saw this, I thought it was a piece of paper on a twig, but when approaching it, I started to think it might be a butterfly but was not sure because it has a pair of small black spots on the underside of the hindwings beside each hindwing tail and these black spots (which look like eyes) and the hindwing tails (which look like antennae) made the end of the hindwings look like the head, making me wonder if the butterfly had two heads??? 

According to Wikipedia, adult individuals of some butterflies in the Lycaenidae family have hairy antenna-like tails complete with black and white annulated (ringed) appearance and a spot at the base of the tail, and some turn around upon landing to confuse potential predators from recognizing the true head orientation.... It worked. I was confused😅!!

Jamides celeno??　小白波紋小灰蝶？？

Common cerulean??　コシロウラナミシジミ？？

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小白波紋小灰蝶（コシロウラナミシジミ）に見えます。がコシロウラナミシジミが生息しているのは台湾のみ？のはず。じゃあ、この蝶は何なのでしょう？

最初見たときは小枝に紙が引っかかっているのかと思いました。でも近づいてみるとどうも蝶｡｡｡？でも顔が前後に二つある？とりあえず写真を撮り、家で調べたら「捕食者からの攻撃をそらせるため（出典：Wikipedia）」という説があるそうです。見事引っかかりました😅！

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