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大草蛉(Chrysopa septempunctata Wesmael)又名七点草蛉,在我国分布很广,是一种能捕食多种农林害虫的天敌昆虫。大草蛉的食性与中华草蛉不同,其成虫和幼虫均捕食蚜虫及其它昆虫的卵或低龄幼虫,中华草蛉仅幼虫是肉食性的,其成虫则取食植物的花粉、花蜜和蜜腺等。在人工饲养条件下,目前能满足中华草蛉正常生长发育的人工饲料,饲养大草蛉均出现生长发育延迟,幼虫死亡率高,成虫产卵量下降,甚至不能传
Chrysopa septempunctata Wesmael, also known as seven grass weeds, is widely distributed in our country and is a natural enemies insect that can prey on a variety of agricultural and forestry pests. The herbivorous Grasshopper is different from Scylla serrata in that its adults and larvae both feed on the eggs or young larvae of aphids and other insects. The larva of Larix chinensis is carnivorous, whereas the adult larvae feed on pollen, nectar and nectaries of plants . Under artificial feeding conditions, the artificial feed that can meet the normal growth and development of Chinese cattails at present is delayed in growth and development, the larva mortality is high, and the amount of spawning of adults is decreased or even can not be transmitted