摘要
【目的】蠋蝽是一种重要的捕食性天敌昆虫,观察其生殖器及胸足感受器类型及其形态特征,有助于探究其寄主选择等行为的机理。【方法】采用扫描电镜对蠋蝽生殖器及胸足感受器类型及其形态进行观察。【结果】蠋蝽雄虫交配器和雌虫产卵器上的感受器均有4种,分别为毛形感受器、刺形感受器、腔锥形感受器和锥形感受器,但雌虫产卵器上的刺形感受器和毛形感受器长度长于雄虫交配器;雌虫和雄虫胸足上的感受器有5种,分别为毛形感受器、刺形感受器、腔锥形感受器、锥形感受器以及Böhm氏鬃毛感受器,但雌雄虫胸足上的感受器大小存在一定差异:雌虫中后足上的刺形感受器长度长于雄虫,雌虫后足上的毛形感受器(Ⅰ型和Ⅱ型)长度长于雄虫,雄虫前足上的Böhm氏鬃毛感受器长度长于雌虫。【结论】蠋蝽生殖器和胸足上都存在多种类型的感受器,其形态和种类差异不大,仅部分感受器大小存在差异。
[Purpose]Arma chinensis(Fallou)is an important predatory natural enemy insect.Observing its genital organs,thoracic legs sensilla types and morphological characteristics is helpful to explore the mechanism of host selection and other behaviors.[Method]The types and morphology of sensilla on genitalia and thoracic legs were observed by scanning electron microscopy.[Result]Scanning electron microscopy(SEM)showed that there were four kinds of sensilla on the genitals of A.chinensis:sensilla trichodea,sensilla cheatica,sensilla coeloconica and sensilla basiconica.The length of sensilla trichodea,sensilla cheatica on the ovipositor of female insects is longer than that on the mating organ of male insects.There were five kinds of sensilla on the thoracic legs of A.chinensis:sensilla trichodea,sensilla cheatica,sensilla coeloconica,sensilla basiconica and Böhm’s bristle sensilla.However,there are some differences in the size of the sensilla on the thoracic legs between male and female:the length of the sensilla cheatica on the mid-hind foot is longer in female than in male,the length of sensilla TrichodeaⅠandⅡon the hind foot is longer in female than in male,and the length of Böhm’s bristle sensilla on the forefoot is longer in male than in female.[Conclusion]There are many types of sensilla on the genital organs and thoracic legs of A.chinensis.There are no significant differences in morphology and species,but only some of the receptors are different in size.
作者
徐天梅
葛文超
杜广祖
陈斌
XU Tianmei;GE Wenchao;DU Guangzu;CHEN Bin(College of Plant Protection,Yunnan Agricultural University,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan,Kunming 650201,China)
出处
《云南农业大学学报(自然科学版)》
CSCD
北大核心
2021年第1期53-59,139,共8页
Journal of Yunnan Agricultural University:Natural Science
基金
国家重点研发计划项目(2018YFD0200703)
国家自然科学基金项目(31660537,31760519)。
关键词
蠋蝽
生殖器
胸足
感受器
扫描电镜
Arma chinensis(Fallou)
genitals
thoracic legs
sensilla
scanning electron microscopy