1950年农业生产计划中,规定了加害于马铃薯的‘二十八星’瓢虫为防除害虫工作的主要对象之一,且拟计施治的面积有四十万亩之多。此虫的重要性于此可见。但华北区内具有二十八个黑点,符合‘二十八星’名称的瓢虫不止一种。由 In 1950, the plan of agricultural production stipulated that ’28-eyed’ ladybugs harbored to potatoes were one of the main targets for pest control work and the area planned to be treated was as much as 400,000 mu. The importance of this worm can be seen here. However, there are more than one black ladybug in northern China in line with the name of “twenty-eight stars.” by