龙眼角颊木虱是龙眼的主要害虫 ,以成虫和若虫为害龙眼新梢嫩叶。在厦门市同安区一年发生六代 ,主害代为第一代于 3月下旬至 4月中旬和第五代于 9月中旬至 10月上旬。本文报道了该虫在不同温度下各虫态的发育历期 ,发现各个世代若虫都有滞育的现象 ,研究分析了若虫滞育对越冬虫源 ,主害代虫源等种群动态的影响 ,并探讨了龙眼角颊木虱的为害损失测定及药剂防治试验 Longan corner buccal psyllids are the major pests of longan, adult and nymph-damaging longan shoots young leaves. Tongan District, Xiamen City, occurred six generations a year, the main generation on behalf of the first generation in late March to mid-April and the fifth generation in mid-September to early October. In this paper, we report the developmental stages of the insect at different temperatures and found that the nymphs of all generations have diapause. The effects of nymphs on the population dynamics of overwintering, The damage loss and chemical control of C. longicornis were discussed