Nymphalidae, Satyrinae, Lethe europa.
http://www.flickr.com/photos/29954808@N00/7266083488
http://www.flickr.com/photos/49296659@N00/522938136
http://www.pbasehk.com/slideshow/butterfly/Lethe_europa
http://flickrhivemind.net/Tags/letheeuropa/Interesting
http://wanderingbutterflyeffect.files.wordpress.com/2011/05/lethe-europa-pavida-female.jpg
Easy spoken: To separate moths from butterflies you have to look at the antennae: Moths usually have straight or featherlike antennae, whereas butterflies have clubbed antennae, meaning the tips of the antennae are slightly thickened and rounded.
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