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异色瓢虫是鞘翅目瓢虫科的一种益虫,它体小似瓢,鞘翅近末端(7/8)处有一明显的横脊痕。在我省一年发生四代,九月末至十月中、下旬成虫飞迁到高山石砬子、山洞石缝中越冬,第二年3月末至4月上、中旬,成虫迁回田野或林内。它主要取食各种蚜虫、介壳虫、粉虱等,是多种农林害虫的重要天敌。据沈阳林土所1973～1974年室内饲养观察,成虫每天可捕食松干蚧无肢若虫357头,一头三龄幼
Harmonia axyridis is a beneficial insect of the family Coleoptera, which has a clear body like a scoop and a clear transverse scar at the proximal extremity (7/8) of the coleoptile. In our province, four generations occur in one year, from the end of September to mid-October, the adult fly migrates to the alpine stone lobster, the crater of the cave is overwintering. The second year from the end of March to the middle of April and the middle of the year, the adult migrate back to the fields or the forest. It is mainly feeding a variety of aphids, scale insects, whitefly, etc., is an important natural enemies of a variety of agricultural and forestry pests. According to the Shenyang Forest Land 1973 ~ 1974 indoor feeding observation, the adult can be fed daily Songkuang no limb nymphs 357, a three-year-old