二点螟触角感器的扫描电镜观察

Antennal Sensilla of Chilo infuscatellus under Scanning Electronic Microscope

摘要: 为了研究甘蔗蛀干害虫二点螟Chilo infuscatellus成虫触角的外部形态及其感受器的类型、分布和数量，使用扫描电镜对二点螟成虫触角感器形态结构进行了观察。结果表明：二点螟雌、雄成虫触角上共有5种感器类型，分别为毛形感器、刺形感器、腔锥形感器、耳形感器和Böhm氏鬃毛。除雌、雄触角上的耳形感器形态不同外，雌、雄触角感器类型没有性别差异，其他感器的形态与分布无明显差异，且呈现一定的规律性分布。

Abstract: Antennae morphology and sensillum types of adult Chilo infuscatellus were studied. Under a scanning electron microscope, 5 distinctive types of antennal sensilla, including sensilla trichodae, sensilla chaetica, sensilla coeloconica, sensilla auriculate and Böhm bristles, were observed in the male and female insects. Except for sensilla auricilla, there were no significant differences on the sensilla between male and female adults.