安徽省合肥、宿县两地,1957年6—7月间,发现玉米田间有多量的瓢虫啮食玉米螟卵块的情形。根据室内外的饲养和初步观察结果,已经明确,啮食玉米螟卵块的有红四星瓢虫、红二星、黑四星、十八星、龟纹等7种瓢虫之多(这些名称是根据其特征暂定的,学名尚待鉴定)。几种瓢虫的啮食卵块数量,以红四星瓢虫为量 Anhui Hefei, Suxian two places, June-July 1957, found in the corn field there is a large number of ladybugs to feed the corn borer eggs case. According to indoor and outdoor rearing and preliminary observations, it has been clear that there are as many as seven kinds of ladybugs, such as red four star ladybug, red two star, black four star, eighteen star, According to its characteristics tentative, scientific name yet to be identified). Few kinds of ladybugs to block the number of eggs to red four-star ladybugs