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采用室内饲养和果园调查相结合的方法观察黑盾守瓜的生物学习性。结果表明，此虫每年发生一代，以当年羽化的成虫在龙眼树冠上越冬。成虫以为害春、夏梢为主，有多次交尾习性，寿命可长达19个月；卵产在2－10cm深的表土层中，每雌卵量可达964—1517粒，卵的孵化需要潮湿、黑暗的条件，历期6—8天；幼虫共5龄，分布于5－20cm深的土层中，为害龙眼的菌根，历期18—26天，高峰期为5－7月；蛹化于表土层中，历期7－11天。此虫主要分布在桂南、桂西南一带，并有逐步蔓延扩散的趋势。控制其发生的天敌主要有蚂蚁、步甲、泥蜂和一种霉菌。
The method of indoor feeding and orchard investigation was used to observe the biology of Black Shield Shougua. The results show that the pest occurs a generation each year, in order to the emergence of adult worms wintering in the longan canopy. Adults think harm to spring, summer tip-based, there are multiple mating habits, life expectancy up to 19 months; Oviposition in the topsoil 2-10cm deep, the number of eggs per female up to 964-1517 eggs hatch Need damp, dark conditions, the duration of 6-8 days; a total of 5 instar larvae, located in 5-20cm deep soil, harmful mycelium longan, period 18-26 days, the peak for May-July ; Pupal in the topsoil, a period of 7-11 days. The insects are mainly distributed in southern Guangxi, southwest of Guangxi, and have gradually spread the trend of proliferation. The predators that control their occurrence are mainly ants, carabiners, mud bees and a mold.