筛豆龟蝽 Megacopta cribraria(Fabricias),是豆科植物上的一种主要害虫.尤其对春大豆危害更为严重,近几年我市春大豆逐年扩大,种植面积在万亩以上(包括在柑、桑、茶园内套种),而该虫的危害也逐趋严重,一般高峰期虫口百株达1000头或更高,成为影响春大豆丰产的重要因素.为此我们于1989～1990年在浙江兰溪对该虫的生物学特性及防治等方面进行了研究,现将结果报道如下:一、形态特征成虫:雌体长4.0～5.5mm,均平4.6mm。雄体长3.5～4.5mm,平均4.0mm.前胸背板宽3.1～3.9mm,体暗黄色,密布黑色粗刻点,体呈扁圆形,背面隆起,中央有一无刻 Megacopta cribraria (Fabricias) is a major pest on legumes, especially for spring soybeans. In recent years, the spring soybean in our city has been expanded year by year with planting area over 10,000 mu , Mulberry, tea intercropping), and the harm of the pest gradually by the severity of the general peak of 100 strains of insect population of 1000 or higher, an important factor affecting the yield of spring soybean.To this end we in 1989 to 1990 in Zhejiang Lanxi on the biological characteristics of the insect and prevention and control and other aspects of the study, the results are reported as follows: First, the morphological characteristics of adults: Female length 4.0 ~ 5.5mm, were flat 4.6mm. Male length 3.5 ~ 4.5mm, an average of 4.0mm. Front chest back width 3.1 ~ 3.9mm, body dark yellow, thick black rough carved point, the body was oblate, back uplift, there is a central moment