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白跗平腹小蜂在浙江于４月中下旬自然羽化，１０月上旬在第３代马尾松毛虫卵中，１１月在柳杉毛虫卵中，以老熟幼虫越冬，翌年４月中下旬开始羽化活动。在自然温度下，用柞蚕剖腹卵繁殖，年发生６～７世代。在林间的年周期活动中，其种群数量分别在５～６月和９～１０月出现两次高峰。这和马尾松毛虫、柳杉毛虫、水青蛾、大背天蛾和油茶枯叶蛾等主要森林害虫的卵期吻合。该蜂对它们的抑制力分别是１６．５５％～２２．９０％’２３．４５％，２．６３％～５．４９％，１．９７％和３．００％～７．００％。该蜂在林间的水平扩散距离达３２ｍ以上。
Baphicupax beetles spontaneous emergence in mid-to-late April in Zhejiang Province. In early October, in the 3rd generation of Masson pine caterpillar eggs, in November, the larvae of Cunninghamia lanceolata overwintered with mature larvae in mid-April Feather begins in late. At natural temperatures, with tussah laparotomy breeding, the occurrence of 6 to 7 generations. In the forest annual cycle activities, the number of its population in May to June and September to October there are two peaks. This is consistent with the egg period of major forest pests such as Dendrolimus punctatus, Cryptomeria, Hydra, Plutella and Camellia oleifera. The bees inhibit them by 16.55% ~ 22.90% ’23 .45%, 2.63% ~ 5.49%, 1.97% and 3.00% ~ 7.00%, respectively. The bee in the forest between the horizontal spread of more than 32m.