应用扫描电镜对烟实夜蛾成虫触角的外部形态结构进行了观察.结果表明,成虫触角上存在着7种感器,即毛形感器、刺形感器、腔锥形感器、锥形感器、耳形感器、柱形感器和腔乳头状感器.其中以毛形感器数目最多,并分为长毛形和短毛形2种.刺形感器分为长刺形和短刺形.并对烟实夜蛾雌、雄成虫触角感器的种类和分布差异及与其相近昆虫的差异进行了讨论. Scanning electron microscope (SEM) was used to observe the external morphology of adult antennae of Helicoverpa assulta. The results showed that there were seven kinds of sensilla on the antennae, namely, hairy sensilla, thorn sensilla, cavity conical sensilla, Sensor, ear sensor, column sensor and papillary sensor, of which the largest number of hair sensors, and divided into long-haired and short-haired 2. Thorn-shaped sensors are divided into long spines And short stab-shaped.And discuss the difference and the difference of the types and distribution of the antennal sensilla of female and male adults of Helianthus annuus and the insects that are close to them.