松毛虫脊茧蜂几种重要感器的扫描电镜观察

SEM Observation of the Sensilla of Aleiodes esenbeckii

松毛虫脊茧蜂Aleiodes esenbeckii(Hartig)是我国松毛虫林业重大害虫的常见重要寄生性天敌。采用扫描电镜技术分别对其触角、下颚须、前足胫节和产卵器上的重要感器形态与超微结构进行系统研究,发现松毛虫脊茧蜂主要有5种类型的感器:板形感器、毛形感器、刺形感器、钟形感器和锥形感器。并对感器的形态和分布特点与其寄主的适应关系进行了分析。

Aleiodes esenbeckii （Hartig） is a dominant nhtural enemy parasiting on Dendrolimus spp. in forests. Scanning electron microscopy was used to observe the morphology and ultrastructure of sensilla on antenna, maxillary palpus, tibia of fore leg and ovipositor of A. esenbeckii. Gnerally, A. esenbeckii have 5 types of sensilla, namely, sensillum placodeum, sensillum trichoideum, sensillum chaeticum, sensillum campaniformium and sensillum basiconicum. The adaptive implications of the morphology and distribution of these sensillum of A. esenbeckii are discussed.