Among the ladybird beetles, N. ryuguus and Keiscaymnus taiwanenisis Yang et Wu were two most abundant species, which followed well the dynamics of the pine mealybug in nature.

• 林间湿地松粉蚧捕食性天敌昆虫以瓢虫类数量居多，粉蛉类次之，草蛉类和蜘蛛也有一定的数量。