班氏跳小蜂是扶桑绵粉蚧的优势寄生蜂,利用扫描电镜对其触角进行超微观察,结果表明:班氏跳小蜂上共发现7种感器,分别为Bhm氏鬃毛(Ⅰ、Ⅱ)、毛形感器(Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ)、刺形感器(Ⅰ、Ⅱ、Ⅲ)、板形感器(Ⅰ、Ⅱ)、锥形乳状感器、锥形感器(Ⅰ、Ⅱ、Ⅲ、Ⅳ)、舌形片状感器,其中舌形片状感器为新发现的一种感器类型。雌、雄蜂触角上的感器类型及数量存在差异,毛形感器(Ⅴ、Ⅵ)和锥形感器(Ⅱ、Ⅲ、Ⅳ)为雌蜂特有,毛形感器Ⅳ、刺形感器(Ⅱ、Ⅲ)、板形感器Ⅱ和舌形片状感器为雄蜂特有。最后对班氏跳小蜂触角感器的功能进行讨论。 Bentley hopper is the dominant parasitic wasp in Fusarium mealybugs, and its antennae were observed by scanning electron microscopy. The results showed that there were 7 kinds of sensilla, Bhm’s mane (Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅵ), sensilla (Ⅰ, Ⅱ, Ⅲ), sensilla (Ⅰ, Ⅱ), conical milky sensation Cone (Ⅰ, Ⅱ, Ⅲ, Ⅳ), tongue-shaped sensor, tongue-like sensor for the newly discovered type of sensor. There were differences in the types and numbers of the sensilla on the antennae of female and male bee. The sensilla (Ⅴ, Ⅵ) and pyramidal sensilla (Ⅱ, Ⅲ, Ⅳ) (Ⅱ, Ⅲ), plate-shaped sensor Ⅱ and tongue-shaped sensor for the drone-specific. Finally, the function of Bentley jumping bee antennae sensor is discussed.