云南锦斑蛾成虫触角、喙管和跗节感器超微结构  

Ultrastructure of sensilla on the antennae,proboscis and tarsi of adult Achelura yunnanensis(Lepidoptera:Zygaenidae)

作　　者：李根层 赵昱杰 李嘉莉 鲁国艳 刘乃勇[1] LI Gen-Ceng;ZHAO Yu-Jie;LI Jia-Li;LU Guo-Yan;LIU Nai-Yong(Key Laboratory of Forest Disaster Warning and Control of Yunnan Province,Southwest Forestry University,Kunming 650224,China)

机构地区：[1]西南林业大学,云南省森林灾害预警与控制重点实验室,昆明650224

出　　处：《昆虫学报》2020年第11期1385-1398,共14页Acta Entomologica Sinica

基　　金：西南林业大学科研启动基金项目“云南锦斑蛾化感器官感器鉴定及功能研究”;云南省高层次人才培养支持计划“青年拔尖人才”专项(YNWR-QNBJ-2019-057)。

摘　　要：【目的】本研究旨在明确云南锦斑蛾Achelura yunnanensis雌雄成虫触角、喙管和跗节等主要化感器官上的感器种类和差异,为后续该虫化学感受相关的研究奠定基础。【方法】采用光学显微镜和扫描电镜,观察了云南锦斑蛾雌雄成虫触角、喙管和跗节的形态特征及其感器的类型和超微结构。【结果】云南锦斑蛾雌雄成虫触角上有7类17种感器,包括5种锥形感器(sensilla basiconica, SB)、3种毛形感器(sensilla trichodea, ST)、3种刺形感器(sensilla chaetica, SCH)、2种Bohm氏鬃毛(Bohm bristles, BB)、2种腔锥形感器(sensilla coeloconica, SCO)、1种耳形感器(sensilla auricillica, SAU)和1种鳞形感器(sensilla squamiformia, SSQ),其中Bohm氏鬃毛I型仅分布在雄虫触角上,毛形感器II型和III型以及腔锥形感器I型在长度上具有性二型现象。雌雄成虫喙管上有2类5种感器,包括4种锥形感器和1种刺形感器,其中锥形感器III型仅在雌虫喙管上有分布。此外,雌雄成虫跗节上有5类13种感器,包括4种毛形感器、4种锥形感器、2种鳞形感器、2种Bohm氏鬃毛和1种刺形感器,其中毛形感器I型仅分布在雌虫跗节上,锥形感器I型和III型仅在雄虫跗节上有分布,锥形感器IV型和Bohm氏鬃毛I型在长度上具有性二型现象。【结论】云南锦斑蛾雌雄虫触角上有17种感器,喙管上有5种感器,跗节上有13种感器,部分感器在种类、长度或数量上具有性二型现象。【Aim】 This study aims to ascertain the types and differences of sensilla on the main chemosensory organs, including the antennae, proboscis and tarsi, of female and male adults of Achelura yunnanensis, so as to lay a basis for further studies associated with chemosensory reception of this moth. 【Methods】 The morphological characteristics of the antennae, proboscis and tarsi of female and male adults of A. yunnanensis and the types and ultrastructure of sensilla on them were observed under light microscopy and scanning electron microscopy. 【Results】 Seventeen subtypes of seven types of sensilla were identified on female and male antennae of A. yunnanensis adults, including five sensilla basiconica(SB), three sensilla trichodea(ST), three sensilla chaetica(SCH), two Bohm bristles(BB), two sensilla coeloconica(SCO), one sensilla auricillica(SAU) and one sensilla squamiformia(SSQ). Among them, BB-I is present only on male antennae, and ST-II, ST-III and SCO-I show sexual dimorphism in length. Five subtypes of two types of sensilla were identified on female and male proboscises, including four SB and one SCH. Of these sensilla, SB-III is distributed only on female proboscis. In addition, 13 subtypes of five types of sensilla were found on female and male tarsi, including four ST, four SB, two SSQ, two BB and one SCH. Notably, ST-I is present only on female tarsi, while SB-II and SB-III are present only on male tarsi. The lengths of SB-IV and BB-I on female and male tarsi show sexual dimorphism. 【Conclusion】 There are 17, 5 and 13 subtypes of sensilla on the antennae, proboscis and tarsi of female and male adults of A. yunnanensis, respectively. Some of these sensilla exhibit sexual dimorphism in the type, length or number.

关 键 词：云南锦斑蛾 化感器官 触角 喙管 跗节 感器 形态特征 超微结构 

分 类 号：Q965[生物学—昆虫学]