烟草甲触角感器的扫描电镜观察

利用扫描电镜观察烟草甲Lasioderma serricorne(Fabricius)成虫触角感器的形态和分布。结果表明,烟草甲成虫触角由柄节、梗节和鞭节组成,其中鞭节由9个亚节组成;在触角上共观察到毛形感器、刺形感器、锥形感器Ⅰ、锥形感器Ⅱ、锥形感器Ⅲ、锥形感器Ⅳ、钟形感器、B hm氏鬃毛和球状感器9种感器类型,其中锥形感器Ⅳ、钟形感器、B hm氏鬃毛和球状感器为新发现的烟草甲触角感器。此外,还讨论感器结构与功能的关系。

Observation on antennal sensillia of Lasioderma serricorne with scanning electron microscope

The appearance and distribution of sensilla on the antenna of Lasioderma serricorne (Fabricius) wereobserved with scanning electron microscope (SEM) . The results showed that the antenna of L. Serricorne adultsconsisted of scape, pedicel and 9 sub-segment flagellum. Nine kinds of sensillum were found in the antenna,including sensillum trichodeum, sensillum chaeticum, sensillum basieonicum ( Ⅰ ,Ⅱ , Ⅲ, and Ⅳ), sensillumscolopale, B(o)hm bristle, and sensillum orbiculate. Sensillum basieonicum Ⅳ , sensillum scolopale, sensilla B(o)hmbristle and sensillum orbiculate were first discovered in L. Serricorne. In addition, the structure-function relationshipof the sensillum was discussed.