各型桃蚜触角感器的比较研究

该文对桃蚜Myzus persicae(Sulzer)各型触角感器进行了比较研究。扫描电镜观察结果表明桃蚜具有钟形感器、毛形感器、原生感觉圈和次生感觉圈4种类型的触角感器。桃蚜各型触角感器的最大差异主要表现在次生感觉圈上，雄蚜、雌性母和有翅孤雌蚜具有次生感觉圈，雌性蚜、干母和无翅孤雌蚜无；但雄蚜具有的次生感觉圈数目多于雌性母和有翅孤雌蚜，且不仅仅分布在触角第3节，第4、5节也有分布。本文探讨了桃蚜触角感器在化学生态学上的功能作用，各型触角感器的差异与桃蚜寄主选择、迁移及交配行为的关系，并进一步分析了桃蚜触角感器的性二型现象。

Comparative study on the antennal sensilla of various forms of Myzus persicae

A comparative study on the antennal sensilla of various forms of Myzus persicae is undertaken. Scanning electron microscopy revealed four kinds of antennal sensilla, campaniform sensillum, trichoid sensillum, primary and secondary rhinarium. A major difference between various forms of M. persicae lies in the abundance of secondary rhinaria. Male, gynopara and alate virginopara possess secondary rhinaria, ovipara, fundatrix and apterous virginopara have none. Nevertheless, male aphids have more numbers of secondary rhinaria than gynoparae and alate virginoparae, and the sensilla are found not only on the 3rd antennal segment, but also on the 4th and 5th segments of males. The role of antennal sensilla in chemical ecology of peach aphid and the differences between various forms of peach aphid in correlation to migration, host selecting and mating behavior are discussed, sexual dimorphism in the antennae of M. persicae is also discussed.