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Neodiprion sertifer
''Neodiprion sertifer'', the European pine sawfly, is a sawfly species in the genus ''Neodiprion''. Although native to Europe, it was accidentally introduced to North America in 1925.
The larvae of ''Exhyalanthrax afer'' feed on ''N. sertifer'' cocoons.
(+)-Catechin 7-O-β-glucoside, isorhamnetin 3,7,4′-tri-O-β-glucoside, kaempferol 3,7,4′-tri-O-β-glucoside and quercetin 3,7,4′-tri-O-β-glucoside can be isolated from the hemolymph of ''N. sertifer''. None of these compounds is present in the needles of ''P. sylvestris'', therefore, these flavonoid glucosides are produced by the larvae from flavonoid monoglucosides and (+)-catechin obtained from the pine needles.〔Flavonoid Metabolites in the Hemolymph of European Pine Sawfly (Neodiprion sertifer) Larvae. Matti Vihakas, Petri Tähtinen, Vladimir Ossipov and Juha-Pekka Salminen, Journal of Chemical Ecology, May 2012, Volume 38, Issue 5, pages 538-546, 〕
==Life Cycle==
The European pine sawfly typically hatches from early April to late May. The larvae feeds off existing pine needles. When they mature, they spin into cocoons. In the fall, they leave their cocoons as a wasp-like creature and mate. September and October is when the female lays eggs in pine trees for the next generation. Their favorite trees are Scots pine, Red pine, Jack pine, and Japanese pines.〔(【引用サイトリンク】 accessdate=11 January 2013 )〕〔(【引用サイトリンク】 title=European Pine Sawfly Fact Sheet )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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