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蚂蟥亦称蛭,属于环形动物门中的蛭纲,共有三大目,60多种。在水稻区主要有日本医蛭(Hirudo nipponica)、宽体金线蛭(Whitmania pigra)、光润金线蛭(W.laeuis)、茶色蛭(Haemopis acranulata)、黄色蛭(H.gracilis)、韦氏白勃石蛭(Barbr-onia weberi)、及勃氏齿蛭(Odontobdellablanchoral)等7种。其中只有日本医蛭性喜吸吮人畜血液,发生数量也最多。在我省的双季稻地区,这种日本医蛭大约要占蛭类中的60-90％,其为害性很大,不仅吸吮人畜的血液,造成流血,而且被叮咬后还会发
Leech also known as leeches, belonged to the ring animal door in Hirudo Gang, a total of three eyes, more than 60 kinds. In the rice area are mainly Hirudo nipponica, Whitmania pigra, W. laeuis, Haemopis acranulata, H.gracilis, Barbr-onia weberi and Odontobdellablanchoral. Among them, only Japanese medical leech nature likes to suck the blood of livestock and poultry, and the largest number occurs. In the double cropping rice region of our province, this Japanese medical leeches occupies about 60-90% of the total leech species. It is very harmful and not only sucks the blood of humans and animals, causing bloodshed, but also bites