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==Life cycle==
==Life cycle==
[[image: Anotogaster_sieboldii.jpg|thumb|left|alt= Anotogaster sieboldii on a twig|An '''Anotogaster sieboldii'''' or {{Nihongo|'''oniyanma'''|オニヤンマ}} seen on a twig in the Nasu Highlands of Tochigi, Japan]]Eggs hatch within a month of being laid. The [[larva]] live for three to five years [[Ecdysis|moulting]] as many as ten times and growing as large as five centemeters in length. Once this size, the larva will feed on [[Tadpole|tadpoles]] and small fish. The adult dragonfly can [[Mating|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 perpendicular to the water, laying their eggs in mud or sand under the surface.
[[image:Anotogaster sieboldii.jpg|thumb|left|alt= Anotogaster sieboldii on a twig|An '''Anotogaster sieboldii'''' or {{Nihongo|'''oniyanma'''|オニヤンマ}} seen on a twig in the Nasu Highlands of Tochigi, Japan]]Eggs hatch within a month of being laid. The [[larva]] live for three to five years [[Ecdysis|moulting]] as many as ten times and growing as large as five centemeters in length. Once this size, the larva will feed on [[tadpole]]s and small fish. The adult dragonfly can [[Mating|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 perpendicular to the water, laying their eggs in mud or sand under the surface.
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==Notes==
==Notes==
{{Reflist}}
{{Reflist}}
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*[http://www.geocities.co.jp/odonata5580/ comprehensive list of dragonfly species in Japan] ([http://www.webcitation.org/5kmhWMc48 Archived] 2009-10-25)
*[http://www.geocities.co.jp/odonata5580/ comprehensive list of dragonfly species in Japan] ([http://www.webcitation.org/5kmhWMc48 Archived] 2009-10-25)


{{DEFAULTSORT:Anotogaster Sieboldii}}
{{dragonfly-stub}}
[[Category:Cordulegastridae]]
[[Category:Cordulegastridae]]


{{dragonfly-stub}}


[[fr:Anotogaster sieboldii]]
[[fr:Anotogaster sieboldii]]

Revision as of 04:25, 24 October 2010

Anotogaster sieboldii
Anotogaster sieboldii
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Species:
A. sieboldii
Binomial name
Anotogaster sieboldii
Sélys, 1854

Anotogaster sieboldii or oniyanma (オニヤンマ、鬼蜻蜓、馬大頭) in Japanese is the largest species of dragonfly native to Japan. It can grow between 95 and 100 mm in length.[1]

Life cycle

Anotogaster sieboldii on a twig
An Anotogaster sieboldii' or oniyanma (オニヤンマ) seen on a twig in the Nasu Highlands of Tochigi, Japan

Eggs hatch within a month of being laid. The larva live for three to five years moulting as many as ten times and growing as large as five centemeters in length. Once this size, the larva will feed on tadpoles and small fish. The adult dragonfly can 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 perpendicular to the water, laying their eggs in mud or sand under the surface.

Notes

  1. ^ ふしぎがわかる しぜん図鑑 こんちゅう, page 35. Froebel-Kan CO., LTD., 1999

References

  • ふしぎがわかる しぜん図鑑 こんちゅう. Tokyo, Japan: Froebel-Kan CO., LTD. 1999. p. 35. ISBN 4-577-00033-4. {{cite book}}: Cite has empty unknown parameter: |coauthors= (help)Template:Ja icon