两年来,我们对陕西关中棉区的草蛉进行了以下各方面的研究和试验。现将初步结果整理如下: 草蛉的种类 将我院收藏的和1975年黑光灯诱集的草蛉标本,鉴定成虫454头,计有8种。现将种类数量和各种所占百分比列于表1。以丽草蛉、大草蛉、中华草蛉等三种数量最多,占总数的86.59%,为我省的优势种。在棉田大量捕食棉花害虫的也是这三种。 In the past two years, we have conducted the following researches and experiments on the grass weeds in the Guanzhong area of ​​Shaanxi Province. Now the preliminary results are organized as follows: Kind of species collected from our hospital and 1975 black light trap grass specimens, identification of adult 454, there are 8 species. The number of species and their respective percentages are listed in Table 1. In order to Li grass 蛉, large grass 蛉, Chinese grass 蛉 the three kinds of the largest number, accounting for 86.59% of the total, as the dominant species in our province. There are also three types of predation on cotton pests in cotton fields.