有些象鼻虫幼虫生活于土内,并以成虫或幼虫在土室中越冬,饲养观察较为困难。1961-63年我们在福州对大灰象虫(Sympiezomia lewisi Roel.)进行了生活史研究,摸索了一些饲养技术的粗浅经验。 土壤采用果园内的壤土,要求湿度适中而疏松,用手握之可以成团,稍压即散碎,含水量约在15％左右。 Some weevil larvae live in the soil, and the adults or larvae in the soil overwintering, feeding observation is more difficult. In 1961-63, we conducted a life history study of Sympiezomia lewisi Roel. In Fuzhou and explored some superficial experiences of feeding techniques. Soil orchard loam soil, moderate humidity and loose, with the hand can be into a group, a little pressure that is scattered, water content of about 15%.