Blue Dasher [Libellulidae] Brachydiplax Chalybea (Brauer, 1868) 蜻蜓

Blue Dasher [Libellulidae] Brachydiplax Chalybea (Brauer, 1868) 蜻蜓
http://500px.com/photo/71362919/blue-dasher-%5Blibellulidae%5D-brachydiplax-chalybea-%28brauer-%29-蜻蜓-by-cyy-4993?from=user_library
https://youpic.com/image/1548013/
https://www.flickr.com/photos/cyy4993/14268285693/