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旱蛭(旱蚂蟥)是一种吸血性的环体动物,生长在水边及背阴的草丛中,伺机叮附人体吸血,对勘测、开垦等进入山区工作的人员威胁很大。一、五指山区旱蛭的形态及习性:I.形态:海南岛五指山区所见的旱蛭颜色有多种,常见的有二种:①背部呈黄色间黑色线状花纹,腹部呈浅棕色,体形较大,长0.7-2.5厘米,粗0.2-0.5厘米,活动时体长可延伸一倍。吸血后粗可达0.5-0.7厘米.②呈青黄色间黑色线纹,体形较小,长0.5-1厘米,粗0.1-0.2厘米,活动时可延伸一倍,吸血后粗0.3-0.5厘米。这二种旱蛭形态相同。旱蛭全身共有二个吸盘(图1):①口吸盘(前吸盘)甚细小,主要供吸血时鑽入皮肤吸血之用,兼作行动及附着之用。②底吸盘(后吸盘)主要作附着与行动之用,吸着力很大,不易拔除(编者按:如先在旱蛭上滴以浓盐水或擦火柴烤一下,即易拔除)。
Drought and flood (Dry Grasshopper) is a blood-sucking ring-shaped animal. It grows in the waterside and shady grasses. It opportunistically attaches blood to the human body and poses a great threat to personnel working in mountainous areas such as surveying and reclamation. I. Morphology and habits of drought and flood in the Wuzhi Mountain area: I. Form: There are many types of droughts and floods in Wuzhi Mountain in Hainan Island. There are two common types of droughts and floods: 1 The back is yellow and black, and the belly is light brown. Larger in size, 0.7-2.5 cm long and 0.2-0.5 cm thick, the body length can be doubled when active. After sucking blood up to 0.5-0.7 cm.2 is a black line between the blue and yellow, smaller body, 0.5-1 cm long, 0.1-0.2 cm thick, activities can be extended double, 0.3-0.5 cm thick after vaccination. The two types of drought and flood are the same. There are two suction cups in the body of wetland (Figure 1): 1 sucker (the front suction cup) is very small and small, mainly used for sucking blood into the skin for sucking blood, and also used for action and attachment. 2 The bottom suction cup (rear suction cup) is mainly used for attachment and action. The suction is very strong and it is not easy to remove. (Editor’s note: If you first drip on a drought or hoe and bake it with strong salt water or wipe the match, it is easy to pull out).