龙虱又名水龟子,是生活在田野、水沟、小溪中的珍贵水生昆虫,其味美爽口,营养独特,被誉为水中人参,市场价格一路上涨,人工养殖前景看好。龙虱属水生昆虫,体型椭圆,长约3cm,前胸、背板、鞘翅为漆黑色,腹部黄褐色,头部略扁,复眼突出,个体大小不一,以肉食为主,也兼食植物性和腐物性饵料,善于捕食水 Dragonfly, also known as water turtle, is a precious aquatic insects living in the fields, ditches and brooks. It is tasty and refreshing and unique in nutrition. It is praised as ginseng in water, and the market price goes up all the time. The prospect of artificial breeding is promising. Jackal is an aquatic insect, body size oval, about 3cm, chest, back, coleopterygium black, abdomen brown, slightly flat head, compound eyes prominent, individual size, mainly meat, but also eat plants Sex and rot food, good at predation of water