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淡色库蚊具有明显的偏好性, 对鸟类的偏好胜过哺乳类动物.本研究采用吸附剂和羽毛浸提方法分别收集气味物质, 应用GC/MS 方法分析家鸡Gallus gallus domesticus和鸽子Columba rupestris的挥发性气味物质组成.随后使用Y型嗅觉仪进行行为实验, 对影响淡色库蚊搜寻宿主行为的化学物质进行鉴定.从家鸡气味物质中鉴定出69个化合物, 其中脂肪醛、吲哚和对甲苯酚分别占全部分成的17.4%、 10.77%和10.67%.从鸽子气味和羽毛浸提液中鉴定出100个化合物.鸽子气味的主要成分是苯甲酸 (2.20%)、壬醛 (2.22%) 和a-蒎烯 (2.23%), 羽毛浸提液的主要成分是苯甲醛 (3.38%), 胆甾烷醇 (2.38%) 和肉豆蔻酸 (2.18%).家鸡中鉴定出的两个羧基酸类 (辛酸和肉豆蔻酸) 以及2个芬芳类化合物 (吲哚和对甲苯酚) 对淡色库蚊具有引诱作用, 而所有醛类则具有驱避作用.两种从鸽子中鉴定出的壬醛和苯甲醛,对蚊虫具有驱避作用.结果表明, 宿主气味对蚊虫的驱避或引诱是一个复杂的机制主导, 应该是多种气味物质的组合决定了宿主对蚊虫的作用类型.本研究为淡色库蚊引诱剂和驱避剂的开发提供技术基础.“,”Culex pipiens pallens is a host preference mosquito that favours birds over mammals. In present study, the odor substances of chicken Gallus gallus domesticus and pigeon Columba rupestris were collected with sorbent and feather extraction method, and the volatile components were analyzed by GC/MS method. A Y-type olfactometer was used to identify the chemicals affecting the search behavior of Cx. pipiens pallens. Sixty-nine compounds were identified from the odor substances of domestic chicken, in which fatty aldehydes, indole and p-cresol accounted for 17.4%, 10.77% and 10.67% of all the compounds. 100 compounds were identified from pigeon odor and feather extract. The main components of pigeon odor are benzoic acid (2.20%), Nonaldehyde (2.22%) and a-pinene (2.23%), and of pigeon feather extract were benzaldehyde (3.38%), cholesterol (2.38%) and myristic acid (2.18%). Two carboxylic acids (octanoic acid and myristic acid) and two aromatic compounds (indole and p-cresol) identified from chicken were found to be attractive to Cx. pipiens Pallens, while all aldehydes were found to have repellent effects. Two species of nonaldehyde and benzaldehyde identified from pigeons also have repellent effects on mosquitoes. According to the results of this study, the repellent or enticing of host odors to mosquitoes is a complex mechanism, which should be the combination of various odor substances that determines the attraction of the host to mosquitoes. In order to provide reasonable guidance for the development of attractants and repellents, some further researches are needed to confirm which odors are attractive and which have repellent effects.