赤斑黑沫蝉Callitettix versicolor Fabricius,属同翅目,沫蝉科,近年来是我县局部地区丘陵地带对水稻为害最重的一种新害虫。一般受害轻者减产5％左右,重者40％以上。由于国内对该虫的发生和防治研究报道极少,在我省乐山地区还尚无此虫记载。因此,作者从1982年起对该虫进行了初步观察和防治研究,现将 Callitettix versicolor Fabricius, belonging to the Homoptera and Cicadellidae, is a new pest that harms rice in the hilly areas in some areas of our county in recent years. The general victims of light output reduction of about 5%, severe cases of more than 40%. Because of the domestic occurrence and prevention and control of the pest rarely reported in Leshan in our province there is no such record. Therefore, the author conducted an initial observation and prevention and control study of the pest since 1982, and will now