The searching efficiency of the adult beetle to the mealybug was: young nymph>egg>old nymph>female adult, while the handling time was: female adult>old nymph>egg>young nymph.

• 3）圆斑弯叶毛瓢虫对湿地松粉蚧的捕食作用 圆斑弯叶毛瓢虫能捕食湿地松粉蚧的卵、若虫和雌成虫。