成虫

The melanous rate of adults was 2.75%.

黑化个体占2.75％。

Fig. 1. Cumulative preadult mortality rate of Bemisia argentifolii, originating from three groups of host plant, on six

图源类作物粉虱在六种杂草前累积死亡率.

Therefore, the ladybird beetle could be considered as a potential biocontrol agent in controlling the pine mealybug in practice.

圆斑弯毛瓢对湿地松粉蚧有较强捕食作用，通过散放瓢和幼，增加林间瓢数量，能较好地抑制湿地松粉蚧增长。

Objective To study male insect s apical dilation of parameres and aedeagus of Leptoconops kerteszi complex and provide the scientific evidence for diagnosis among species.

目研究古塞细蠓复合组雄性阳基侧突膨端体及阳茎中,为种间鉴别提供科学依据。

The imago period is from the early April to end of May.The reproduction belongs to amphigenesis, but it may happen female parthenogenesis.A female average egg number is 3975.

4月上旬至5月下旬，行两性生殖，存在孤雌生殖，雌平均产卵量为3975粒。