桔小实蝇成虫触角感器的扫描电镜观察

Observation on Antennal Sensilla of Bactrocera dorsalis(Hendel)with Scanning Electron Microscope

利用扫描电镜对桔小实蝇Bactrocera dorsalis(Hendel)雌、雄成虫触角感器的形态、种类及分布特征进行观察。结果表明,桔小实蝇成虫触角由柄节、梗节及鞭节组成,鞭节上着生具毛触角芒;触角上有毛形、锥形、刺形和柱形4类9种类型感器,其中具弯钩的毛形感器首次在桔小实蝇成虫触角上被观察到。

The morphology,variety and distribution characteristics of Bactrocera dorsalis adult’s sensilla was observated by scanning electron microscope in this study.The result showed that the antennal of Bactrocera dorsalis was composed of scape,pedicel and the flagellum,there was a aristate arista on flagellum,sensilla trichodea,sensilla basiconica,sensilla chaetica and sensilla cylindrical were found in antennal.