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剪枝橡实象Cyllorhynchites ursulus(Roel.)一年一代,以老熟幼虫在土中5—9厘米处越冬。翌年5月中旬开始化蛹,6月中旬出现成虫。8月中旬新一代幼虫老熟,由橡实脱出入土筑土室越冬。此虫在土中生活长达9个月之久。如何观察从老熟幼虫到成虫羽化出土这一生活过程,笔者试验了几种方法,从中摸索到成功的饲养方法,介绍于下。 利用玻璃罩及标本瓶(两种容器长约20厘米,口径8—10厘米)做为养虫容器,将其横放,取橡树林中表层上(注意检查,切勿混入天敌及其他昆虫)放入瓶中,土量占瓶径的一半。展平,并轻轻压实。将从野外采到的剪枝橡实象幼虫,按每瓶10头均匀撒到瓶内土面。瓶口包以
Pruning acacia like Cyllorhynchites ursulus (Roel.) One year old, with mature larvae in the soil 5-9 cm at the winter. The following year in mid-May began to pupate, adults appear in mid-June. In mid-August, a new generation of larvae are over cooked. This worm lives in the soil for as long as 9 months. How to observe the process of emergence from the mature larvae to adult emergence, the author tested several methods, from which to explore the successful breeding methods, introduced in the next. Using a glass cover and a sample bottle (two containers about 20 cm in length and 8-10 cm in diameter) as a feeding container, horizontally place them on the surface of the oak forest (check and do not mix with natural enemies and other insects) Into the bottle, soil volume accounted for half of the bottle diameter. Flatten and compacted gently. Will be taken from the wild secular rubbery larvae, 10 per bottle evenly sprinkle the bottle soil surface. Bottle package to