烟盲蝽成虫触角感器的扫描电镜观察

烟盲蝽Nesidiocoris tenuis(Reuter)作为一种杂食性昆虫,是蔬菜害虫的重要捕食者。利用扫描电镜对烟盲蝽雌雄成虫的触角进行观察,结果表明:烟盲蝽触角由基节、柄节、梗节和鞭节组成。绝大部分触角感器位于触角的腹面和外侧面。触角感器共有9种,分别为毛形感器、刺形感器、锥形感器、钟形感器、腔锥形感器、具弯钩形感器、腔形感器、乳形感器和Bhm氏鬃毛。腔锥形感器仅见于雌性触角,其他8种感器在雌雄两性触角上的类型和分布没有明显的区别。

Morphological structure of the antennal sensilla of Nesidiocoris tenuis observed with a scanning electron microscope

The tobacco plant bug, Nesidiocoris tenuis （Reuter） （Heteroptera：Miridae）, is an effective predator of the pests of vegetable crops. The morphological structure of the antennae in adult N. tenuis was observed with a scanning electron microscope. The antennae of males and females consisted of a base segment, scape, pedicel and flagellum. Nine types of sensilla were found on the antennae of both sexes; sensilla trichodea, sensilla chaetica, sensilla basiconca, sensilla campaniformia, sensilla coeloconica, bent-tipped sensilla, sensilla cavity, sensilla mammilliformia and Bohm bristles. Most sensilla are located on the underside and outside lateral surfaces of the antennae. Sensilla coeloconica was only seen on the antennae of females; no other obvious sexual dimorphism in the type and distribution of sensilla was apparent.