木兰青凤蝶生物学特性的初步研究

木兰青凤蝶Graphiumdoson(FelderetFelder)]在浙江1a发生3～4代,以蛹在叶背越冬。以幼虫为害广玉兰、含笑的嫩叶、芽,成虫4～10月份均有发生,卵散产于嫩叶正面的叶缘,一般1叶1卵,偶见2卵,幼虫共5龄,5龄幼虫为害最烈,1d能取食4～6张含笑嫩叶,老熟幼虫在老叶背面化蛹,第2代部分蛹有滞育越夏现象。

A Preliminary Study on the Biological Properties of Graphium doson

Graphium doson has 3～4 generations in Zhejiang each year,and overwinters with pupae on the leaf back.The larva harms the Magnolia grandiflora and Michelia figo tender leaves and buds,the adult emerges in every month during Apr.～Oct.The eggs are produced separately on the edge of leaf face,one egg on every leaf usually,2 eggs are found occassionally on every leaf.The larva has 5 instars totally,the fifth instar larva harms most seriously,can take 4～6 pieces of M.figo tender leaves for eating every day,the mature larva pupates on the old leaf back,a part of pupaes produced by the 2nd generation own the phenomenon of diapausing over the summer.