Abstract:Norbanus aiolomorphi Yang et Wang is a new parasitoid parasitizing the larvae and pupae of moso-bamboo eurytomid,Aiolomophus rhopaloides Walker.It has six generations per year and overwinters as pupa or mature larva within its host galls in Hunan Province. The longevity of adult is about 10-12 days.A female can lay 3-6 eggs,one egg per host.The egg stage is 3-5 days.The larva stage and the pupa stage are 8-10 days and 5—6 days respectively,when the temperature is at 30-35℃.The temperature has greater influence upon emergence of the adults.The larva of Norbanus aiolomorphi are with its host on the vertical distribution law in the.moso-ba-mboo trees and on the space distribution pattern in the grooves of moso-ba-mboo.