云斑天牛头部附器感器的扫描电镜观察  

Observation of Sensilla on the Cephalic Appendages of Batocera horsfieldi with Scanning Electron Microscope

作　　者：诸葛飘飘[1] 罗森林[1] 王满囷[1] 张国安[1] 

机构地区：[1]华中农业大学植物科技学院昆虫生态研究室,武汉430070

出　　处：《林业科学》2010年第5期116-121,I0004,F0003,共8页Scientia Silvae Sinicae

基　　金：国家自然科学基金资助项目(30840065);国家"十一五"科技支撑计划课题(2006BAD08A12)

摘　　要：利用扫描电镜观测云斑天牛成虫触角、下颚须和下唇须的感器类型、形态及分布特征,并分析比较雌雄之间存在的差异。结果表明:云斑天牛触角上共存在5类感器,即毛形感器、锥形感器、刺形感器、凹槽钉形感器、乳突形感器,其中锥形感器分5种亚型,刺形感器分2种亚型。云斑天牛雌、雄成虫触角存在性二型现象:1)虽然雄虫体型明显小于雌虫,但雄虫触角却显著长于雌虫触角;2)乳突形感器只在雌虫触角上发现,且雌虫触角上的粗长锥形感器(BⅠ)、粗短锥形感器(BⅡ)和长刺形感器(ChⅡ)在数量上多于雄虫,但发锥形感器(BⅢ)少于雄虫;3)雌虫触角上的刺形感器(包括ChⅠ和ChⅡ)的长度显著长于雄虫。其他感器的形态及数量在两性触角间均不存在显著差异。在下颚须和下唇须上都发现了毛形感器、长刺形感器、末梢锥形感器(包括TBⅠ和TBⅡ2个亚型)、钟形感器和隙缝感器5类。下颚须和下唇须的长度在两性之间无明显差异,但下颚须的末梢锥形感器数量多于下唇须,隙缝感器少于下唇须;雌虫的末梢锥形感器数量多于雄虫,钟形感器少于雄虫。The morphology,ultrastructure and distribution of sensilla on the antennae,maxillary palp and labial palp of Batocera horsfieldi adults were observed with a scanning electron microscope. The insect has five types of antennal sensilla,that is,sensillum trichodea,s. basiconica （ including five subtypes： B Ⅰ - B Ⅴ）,s. cheatica （ including two subtypes： CHⅠand CHⅡ）,s. grooved peg,and s. cavitata - peg,respectively. Sexual dimorphism of antennae was found in B. horsfieldi,although the male body is smaller than the female,the length of the antennae of male is significantly longer than that of females; s. grooved peg was only found on the female antenna,and female antenna contained more s. BⅠ,s. BⅡ and s. ChⅡ than those of males,while the number of s. BⅢ was fewer than that of males; the average length of s. cheatica of female was significantly longer than that of males. Both maxillary palp and labial palp contained five types of sensilla,including s. trichodea,s. ChⅡ,s. twig basiconca,s. campullacea and s. aperture. The length of both maxillary palp and labial palp has no significantly difference between two sexes,while maxillary palp contained more s. twig basiconca and fewer s. campullacea than labial palp. The number of s. twig basiconca is more in female antennae,while s. campullacea is more in male.

关 键 词：云斑天牛 触角 下颚须 下唇须 感器 

分 类 号：S718.7[农业科学—林学]