Bionomics of Leptocybe invasa Fisher & La Salle

According to the observations both outside and in lab,Leptocybe invasa had 2 or 3 generations a year in Chengdu area and the generations were overlapped.The larvas overwintered in the galls.The adults of the overwintering generation began to emerge in last ten days of May.And the adults would be seen until the first ten days of October.About 83.58% of the adults flew out of the eclosion holes between 08:00 and 14:00.The adults preferred to move than fly,with phototaxis and upward-taxis.