茶毛虫黑卵蜂触角感觉器的扫描电镜观察

ASTUDYOFTHEANTENNALSENSILLAOF Telenomus euproctidis WILCOX (HYMENOPTERA∶ SCELIONIDAE) WITH SCANNING ELECTRON MICROSCOPE

利用扫描电镜对茶毛虫黑卵蜂触角上的感觉器进行了观察和研究 .结果表明 ,茶毛虫黑卵蜂触角上存在着 4种感觉器 .其中 ,刚毛型感器又分为两类 ,即毛形感器 (ST)和刺形感器(SC) ;毛状弯曲形感器 (STC)呈角状 ,雄蜂触角上数量较多 ,而雌蜂触角上数量少 ,且仅分布于触角背面 ;锥形感器 (SB)为雌蜂触角所特有 ,分布于触角 A7～ A10 的腹面 ;多孔沟状感器 (MPG)着生于深而狭窄的窝中 ,仅分布于雌蜂触角的 A4 和 A6～ A10 的端部附近 .结合茶毛虫黑卵蜂的行为特征讨论了毛状弯曲形感器和锥形感器在寄生蜂求偶交配和寄主识别过程中的可能作用 .

Five types of sensilla on the antennae of the scelionid,Telenomus euproctidis Wilcox,have been found with ascanning electron microscope.There are two kinds of setiform sensilla i.e. curved,grooved sensilla trichodea (ST) and erect,stout sensilla chaetica (SC).Horn like sensilla trichodea curvata (STC) are more on the male antennae,but less and only distributed on the dorsum of the female antennae.Sensilla basiconica (SB)are unique to the A 7~A 10 ventral surface of the female antennae.Multiporous grooved sensilla (MPG) inserted into a deep and narrow pit are only present on A 4 and the apical margins of A 6~A 10 of the female antennae.Possible roles of STC and SB in the sexes mating and host recognition processes have been discussed in correlation with the behavioral characteristics of T.euproctidis.