Anotogaster sieboldii

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Anotogaster sieboldii, as known as golden-ringed dragonfly, jumbo dragonfly, Siebold's dragonfly or Script error: No such module "Nihongo". 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, Taiwan, China, Korean Peninsula.[1] It can grow between 95 and 100 mm in length.[2]

Life cycle

Anotogaster sieboldii on a twig
An adult on a twig. photographed in Nasu Highlands of Tochigi, Japan

Eggs hatch within a month of being laid. Nymphs can live for three to five years, moulting as many as ten times and growing as large as five centimeters in length. Like adult dragonfly, nymphs are obviously predatory insects. Once nymphs reach sufficient size, they hunt tadpoles, aquatic insects and small fish. The adult dragonfly mate and lay eggs within one to two months of metamorphosis. After mating, females head toward small creeks or ponds, not fast-moving rivers or lakes, to lay eggs. They will sometimes fly perpendicularly to the water, laying their eggs in mud or sand under the surface.

File:Anotogaster sieboldii 01.jpg
Anotogaster sieboldii
File:Anotogaster sieboldii 03.jpg
Anotogaster sieboldii
File:Anotogaster sieboldii 04.jpg
Anotogaster sieboldii

Notes

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  1. 한국의 잠자리 (The Dragonflies and Damselflies of Korea), 자연과생태 (http://www.econature.co.kr/), 2012.
  2. ふしぎがわかる しぜん図鑑 こんちゅう, page 35. Froebel-Kan CO., LTD., 1999

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References

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