椰眼蝶生物学特性初步研究

椰眼蝶ElymniashypermnestrahainanaMr.取食假按榔ArchontophoenixalexandlWendletDrude等棕桐科园林植物。该虫一年发生3代，以幼虫或蛹在叶片上越冬。4月上旬成虫羽化，幼虫5龄。喜食叶片顶端，叶片基部仅在大发生时才取食。5～6月、8～9月、11月为取食高峰期。幼虫可被螳螂、绒茧蜂、广大腿小蜂等天敌控制，蛹可被瘤姬蜂等寄生。

Biology of Elymnias hypermnestra hainana Mr

Elymnias hypermestra hainana Mr. feeds on palma ceae plants, such as Archontophoenix alexandl Wendi et Drude. It has fore generations a year, living through the winter as larvas or popa on the leaves. In the first ten days of April, imagocs begin to eclose. The laxva, which has five instars inclines to only aren when its number is immense and it damages seriously. The climax of eating happens from mp to June, from August to Seotember and November. The larvae may be controlled by the natural enehaes like Hicrodula patenifera Sevville, opanteles sp., Bractwria lasus (Walker). Pupa may be parasited by Xanthopimpla sp.