利用扫描电镜对茶丽纹象甲 (Myllocerinus aurolineatus Voss)(鞘翅目:象甲科)成虫的触角及感器进行了观察,比较研究了雌、雄成虫触角形态、感器分布和数量上的差异。结果表明,茶丽纹象甲雌、雄成虫触角均呈膝状,由柄节、梗节和7个鞭亚节组成,触角上均着生有5种感器,即毛形感器、刺形感器、棒形感器、叉形感器、鳞形感器以及少量表皮孔。其中,鳞形感器和刺形感器的数量最多,叉形感器在已有的象甲科资料中尚未见报道。毛形感器和叉形感器的数量和分布存在着明显的性别差异,主要表现为雄虫触角上毛形感器和叉形感器的数量显著多于雌虫。
The antennal sensilla of the tea weevil Myllocerinus aurolineatus Voss (Coleoptera: Curculionidae) were observed with scanning electron microscope. The antenna consists of a scape, a pedicel, and a flagellum with 7 segments. Five types of antennal sensilla were identified, including sensilla rod-like, sensilla furcatea, sensilla chaetica, sensilla trichoid, sensilla squamiformia, and some cuticular pores. Sensilla furcatea represents a unique sen- sillum type in the antenna of Curculionidae, and named here after their furcate shape. The number of sensilla squami- formia and sensilla furcatea on male antennae was significantly more than that on female antennae. The antennal shape, distribution and number of these sensilla and their differences between sexes were deseribexi and compared.