咖啡灭字虎天牛触角和足感器的形态与分布观察  

Morphology and distribution of the sensilla on the antenna and propodium of Xylotrechus quadripes Chevrolat (Coleoptera:Cerambycidae)

作　　者：王政[1] 孙世伟[1] 孟倩倩[1] 刘爱勤[1] 桑利伟[1] 苟亚峰[1] 高圣风[1] WANG Zheng;SUN Shiwei;MENG Qianqian;LIU Aiqin;SANG Liwei;GOU Yafeng;GAO Shengfeng(Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops, Wanning 571533, China)

机构地区：[1]中国热带农业科学院香料饮料研究所,海南省热带香辛饮料作物遗传改良与品质调控重点实验室,万宁571533

出　　处：《植物保护》2018年第3期92-97,共6页Plant Protection

基　　金：中国热带农业科学院基本科研业务费专项(1630142017004)

摘　　要：咖啡灭字虎天牛Xylotrechus quadripes Chevrolat是咖啡树的重要害虫,其以幼虫钻蛀为害木质部的特点造成防治十分困难。本文利用扫描电镜对新羽化的咖啡灭字虎天牛雌、雄成虫触角、前足感器类型及分布进行了观察,结果表明:该虫触角呈线状,共11节,可分为3部分:柄节、梗节和鞭节(9亚节)。雌、雄成虫触角感器共有5类,分别为刺形感器、锥形感器、凹槽钉形感器、栓锥形感器、B9hm氏鬃毛,其中刺形和锥形感器各有3个亚型,不同类型的感器在触角各节上的数量和分布均有差异。雌、雄成虫触角感器存在性二型现象,栓锥形感器为雄虫所特有。前足为步行足,感器共有3类,分别为刺形感器、锥形感器和毛形感器,其中刺形感器有5个亚型,雌、雄成虫足感器无性二型现象。Xylotrechus quadripes Chevrolat is the foremost pest of arabica coffee.Damage inflicted to coffee stems by wood-boring larvae causes difficulty in chemical control.In this study,the sensilla on the antenna and propodium of male and female adults of X.quadripes were observed under scanning electron microscope.The results showed that the linear antenna consisted of scape,pedicel and flagellum（composed of nine subsegments）.Five types of sensilla were found on the antenna,including sensilla chaetica（subtypeⅠ,Ⅱ,Ⅲ）,sensilla basiconca（subtypeⅠ,Ⅱ,Ⅲ）,sensilla grooved peg,sensilla styloconica and B9 hm bristles.The quantity and distribution of each kind of sensillum differed among segments of the antenna.However,sexual dimorphism in sensillum was apparent：sensilla styloconica was only observed on male antenna.The propodium belongs to walking leg,on which three types of sensilla were found,including sensilla chaetica（subtype Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ）,sensilla basiconica and sensilla trichodea.The types and morphology of sensilla on the propodium were similar between male and female adults.

关 键 词：咖啡灭字虎天牛 触角 前足 感器 扫描电镜 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] Q964[农业科学—植物保护]