The results of the investigation in forests showed that dastarcus helophoroides adults displayed a core distribution pattern , that belonged to aggegated distribution , and changed to mosaic distribution pattern in a denser population due to the exclusion behavior among the individual in host competition 摘要林间调查和研究表明，花绒坚甲成虫的分布格局为聚集分布中的核心分布型，在群体密度较大时，由于个体间具有竞争寄主的排斥行为，其分布则转变为嵌纹分布；花绒坚甲在进入新的分布区后，首先是建立大小不等的聚集群，再以聚集群体的形式向周围扩散。
Among these factors the effects of the atlantic subtropical high on locusts occurrence are mainly caused by sub - aerial temperature that is affected by the atlantic subtropical high in autumn and winter when the locusts live through and incubate ; there fore the occurrence , the development and the suffering of the locust as well as it ' s a - mount of eggs and imagos are impacted 其中大西洋副热带高压对我国东亚飞蝗发生的影响主要是通过影响秋冬季节蝗卵的孵化和越冬期间的地面温度，从而影响蝗卵基数和孵化为成虫的数量，进而影响着我国东亚飞蝗发生、发展和危害情况的变化。
In this dissertation , the interactive system of delphastus catalinae ( horn ) , its preys and competitor was studied , including comparison between alternative preys and natural prey consumed by d . catalinae ; the system of d . catalinae and its preys ; morphology comparison between d . catalinae and its competitor serangium japonicum chapin ; biology , ecology and predation of s . japonicum ; and also the interspecies competition between d . catalinae and s . japonicum . 1 . besides whitefly pests , d . catalinae could also feed on two species of alternative preys : tetranychus nr Fijiensis和桃蚜myzuspersicae ( sulzer ) ，并在实验室条件下，以自然猎物烟粉虱bemisiatabaci为对照，研究了替代猎物对小黑瓢虫的发育、存活、繁殖及对实验种群增长的综合影响，结果表明： ( 1 )小黑瓢虫以蚜虫为猎物时，成虫不会产卵，但可延长成虫的寿命；以红蜘蛛为猎物时，成虫可产卵并可完成整个世代。
