苹果蠹蛾头部感器的电镜扫描结构

本文使用扫描电镜系统观察并描述了苹果蠹蛾Cydia pomonella(L.)成虫及幼虫触角上及口器上的感器。主要研究结果如下:1)苹果蠹蛾成虫触角背面密布鳞片,感器很少,腹面和侧面鳞片稀疏,具大量感器;2)触角上的感器大部分分布于鞭节各节,少部分分布于柄节和梗节;3)雄虫触角上着生10种感器,雌虫触角上着生9种感器,与雄虫相比,雌虫缺少鳞形感器;4)雄虫口器具鳞形感器和刺形感器,雌虫口器仅具刺形感器;5)幼虫触角3节,基节无感器,第2节具2刺形感器且其分布位置存在个体差异,端节端部具呈三角状排列的3个栓锥感器;6)幼虫口器具一定数量和不同形态的感器。

Structure of the sensilla on the antennae and mouthparts of Cydia pomonella as revealed by a scanning electron microscope (SEM)

The sensilla on the antennae and mouthparts of adults and larvae of Cydia pomonella （L.） were observed and described using scanning electron microscope （SEM）. The main results were as follows：1） the sensilla are almost confined to the ventral and lateral surfaces rather than the back side of antennae. 2） Antennal flagella contained the most sensilla while the scape and pedical segments did not. 3） Ten kinds of sensilla were found on male antennae compared to 9 on females’ and female antennae did not include sensilla squamiformia. 4） The mouthparts of males contained several sensilla squamiformia and sensilla chaetica whereas females only had sensilla chaetica. 5） Larval antennae were 3-segmented; the basal segment was without sensilla, the second segment contained 2 sensilla chaetica which spread randomly on it, and the terminal segment contained 3 sensilla styloconica which were triangular in shape. 6） The larval mouthparts contained a certain number of different kinds of sensilla.