 Anotogaster sieboldii

Anotogaster sieboldii, as known as golden-ringed dragonfly, jumbo dragonfly, Siebold's dragonfly or in Japanese, 無霸勾蜓 in Chinese and 장수잠자리("jang-su-jamjari", means 'General Dragonfly') in Korean is the largest species of dragonfly native to Eastern Asia, especially Japan, China, Korean Peninsula.It can grow between 95 and 100 mm in length.