黑缘红瓢虫(Chilocorus rubidus Hope)是浙江省东南地区油茶刺绵蚧(Metaceron-ema Japonica Mask)的优势天敌昆虫,具有分布广、寿命长、繁殖力强、捕食能力大、种群数量稳定,与寄主发生时间相吻合等特点,抑制油茶刺绵蚧发生为害效果十分显著。通过野外观测和室内饲养:黑缘红瓢虫一年发生一代,以成虫群集3-20头于油茶枝叶上越 Chilocorus rubidus Hope is the dominant natural enemy insect of Metaceron-ema Japonica Mask in the southeast of Zhejiang Province. It has the advantages of wide distribution, long life span, strong fertility, large predation ability, stable population quantity, And the occurrence of the host coincides with other characteristics, inhibition of tea acanthopanax mealybugs is very significant effect. Through the field observation and indoor feeding: black beetle ladybug occurs a generation a year, with adults clustered 3-20 heads in the tea leaves on the more