桑天牛头部附器感器的扫描电镜观察
Observation of sensilla on the cephalic appendage of Apriona germari with scanning electron microscopy
诸葛飘飘，葛红梅，王满囤**， 吴胜兵，罗森林，张国安
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作者单位：华中农业大学植物科技学院昆虫生态研究室 武汉 430070
中文关键词：桑天牛; 触;下颚须; 下唇须; 感器
英文关键词：Apriona germari， antenna， mandible palp， labial palp， sensilla
中文摘要：利用扫描电镜观测桑天牛Apriona germari (Hope)成虫的触角、下颚须和下唇须上感器的分布及超微结构。结果表明，雌、雄桑天牛触角上共存在6种感器，即毛形感器、锥形感器、刺形感器、芽形感器、鳞形感器和棒形感器，其中锥形感器分5种亚型，刺形感器分2种亚型，且部分感器在雌雄成虫触角上的分布模式及数量存在差异，如棒形感器及角锥形感器丛模式仅在雄虫触角上发现，而雌虫触角上的细锥形感器和耳锥形感器多于雄虫，芽形感器少于雄虫；下颚须和下唇须存在5种感器，即毛形感器、刺形感器、末梢锥形感器、钟形感器和隙缝感器，各种感器在雌、雄天牛下颚须和下唇须上的分布和数量无明显的区别。
英文摘要：The ultrastructure and distribution of sensilla on antenna, mandible palp and labial palp of Apriona germari (Hope) adult was observed with scanning electron microscope. The antennae contained six types of antennal sensilla, including sensilla trichodea, sensilla basiconica (including five subtypes: BⅠ～BⅤ), sensillacheatica (including two subtypes: CHⅠand CHⅡ), sensilla emmiformium, sensilla squamiformia and sensilla rod-like. Sensilla rodlike and cluster pattern of sensilla BⅠ were only found on the male antenna, and on the female antenna there were more sensilla BⅡ and sensilla BⅣ than those on male antenna, but fewer sensilla gemmiformium. Both mandible palp and labial palp contained five types of sensilla, including sensilla trichodea, sensilla cheatica, sensilla twig basiconca, sensilla campullacea, and sensilla aperture. The type, number and distribution of palp sensilla were similar in both sexes.