Mosha F W, Mutero C M
Parassitologia. 1982 Dec;24(2-3):255-64.
The separation methods for Anopheles merus from freshwater A. gambiae s.l. involving the use of salinity tolerance test, sensilla coeloconica, palpal ratio and palpal bands were evaluated for a period of one year on a total of about 340 mosquitoes. The salinity tolerance test method was found to be quite simple and reliable but unsuitable in disease transmission studies due to an interval of 2-3 days between the collection and dissection periods and also due to the fact that only a fraction of the mosquito sample is generally identified by this method. Although significantly higher proportions of sensilla coeloconica and palpal ratio were observed in A. merus as compared to freshwater A. gambiae s.l. these characters were found quite unreliable due to their overlapping between two mosquito groups. Sensilla coeloconica and palpal ratio used separately could separate respective percentages of 11.4 and 11.8 A. merus from freshwater A. gambiae s.l., while in combination they separated up to 40.9%. Percentages 4-banded palp mosquitoes accounted for about 32% in A. merus and 19% in freshwater A. gambiae s.l. All these characters also displayed some seasonal variations in the two mosquito groups.
在一年时间里，对总共约340只蚊子评估了从淡水冈比亚按蚊复合组中分离梅氏按蚊的方法，这些方法包括盐度耐受性测试、腔锥感器、触须比例和触须带。盐度耐受性测试方法被发现相当简单可靠，但由于采集期和解剖期之间间隔2至3天，且该方法通常只能鉴定一小部分蚊子样本，因此不适用于疾病传播研究。尽管与淡水冈比亚按蚊复合组相比，梅氏按蚊的腔锥感器比例和触须比例明显更高，但由于这两个蚊群之间存在重叠，这些特征被发现相当不可靠。单独使用腔锥感器和触须比例，能从淡水冈比亚按蚊复合组中分别分离出11.4%和11.8%的梅氏按蚊，而两者结合使用时，分离比例高达40.9%。有4条触须带的蚊子在梅氏按蚊中约占32%，在淡水冈比亚按蚊复合组中占19%。所有这些特征在这两个蚊群中也都表现出一些季节性变化。
