| 摘要: |
| [目的]研究甜菜夜蛾触角感器的种类、数量和分布等特征,为解释其生态学习性和对其进行电生理学等方面的研究提供基础资料.[方法]应用电子扫描显微镜,对甜菜夜蛾(Spodoptera exigua(Hübner))成虫触角上的化学感受器进行了观察和研究.[结果]成虫触角上存在着6种感器,即毛形感器、刺形感器、锥形感器、腔锥形感器、腔形感器和耳形感器,其中以毛形感器和耳形感器数目最多.刺形感器又分为长刺形(Ⅰ型)和短刺形(Ⅱ型)两种.甜菜夜蛾的雌成虫触角感器和雄成虫触角感器的种类不同,两性间感器的分布及形态特征也存在一定差异.[结论]甜菜夜蛾触角感器的种类比较多,分布具有一定的规律性. |
| 关键词: 甜菜夜蛾 触角感器 形态特征 扫描电镜 |
| DOI： |
| 分类号:S482.2 TQ450.2 |
| 基金项目:西北农林科技大学重点科研项目（08080228）；西安市农业重点科研项目（GG05113） |
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| Morphological studies on the types and distribution of antennal sensilla in Spodoptera exigua (Hübner) |
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FENG Mei-jie CHEN An-liang SONG Wei FENG Jun-tao ZHANG Xing
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| Abstract: |
| 【Objective】 The study is to inquire into the antennal sensilla type，number and distribution of the Spodoptera exigu（Hübner） to provide basic data for its further study about ecology，electrophysiology etc.【Method】 With scanning electron microscope（SEM）.【Result】 The result showed that six types of sensilla were found on male and female of S.exigua（Hübner）,namely sensilla trichodea，sensilla chaetica，sensilla basiconica，sensilla coeloconica，sensilla cavity and sensilla auricillica.The sensilla trichodea and sensilla auricillica were the most numerous.In addition，the sensilla chaetica consisted of longer sensilla chaetica and shorter sensilla chaetica.There are differences between male and female adults in type，number，distribution and characteristics.【Conclusion】 The Spodoptera exigu（Hübner）has enrich antennal sensilla，and its distribution present law to some extent. |
| Key words: Spodoptera exigua antenna sensilla characteristics SEM |
