云南木蠹象触角感器的扫描电镜观察  

Scanning Electron Microscopic Observations of Sensilla on the Antennae of Pissodes yunnanensis

作　　者：杨燕[1] 杨茂发[1] 杨再华[1] 张恒[1] 黄吉勇 余金勇 

机构地区：[1]贵州山地农业病虫害重点实验室贵州大学昆虫研究所,贵阳550025 [2]贵州省森林病虫害检疫防治站,贵阳550001 [3]贵州省林业科学研究院森林保护研究所,贵阳550001

出　　处：《林业科学》2009年第2期72-74,171-174,共7页Scientia Silvae Sinicae

基　　金：国家林业局“948”项目(2006-4-40);教育部新世纪优秀人才支持计划资助项目

摘　　要：利用扫描电镜对云南木蠹象雌雄成虫触角上的感器进行观察和研究。结果表明:云南木蠹象成虫触角膝状,由柄节、梗节和鞭节组成,其中鞭节由7个亚节组成。在雌、雄成虫触角上均存在6种感器,即毛形感器、锥形感器、脚形感器、芽形感器、端指形感器和腔形感器,其中毛形感器和端指形感器的数量较多;此外,雌成虫触角还有双芽形感器,雄成虫触角上还有耳形感器。与端指形感器、脚形感器、双芽形感器结构相同的感器在鞘翅目已有的研究资料中还未见报道,是新发现的昆虫触角感器。对云南木蠹象触角不同种类感器的形态、分布以及雌雄间触角感器的分布和数量差异进行描述。Pissodes yunnanensis is one of the serious pests of Pinus yunnanensis. Antennal sensillum of P. yunnanensis was observed with scanning electron microscopy. The results showed that the antennae of adult females and males were geniculate and made up of scape, pedicel and flagella that consised of 7 segments. Six types of sensillum were observed on the antennae of both adult females and males. They were sensillum trichodea, sensillum basiconca, feet-like sensillum, bud-like sensillum, finger-like sensillum and sensillum coeloconica. The antennae had more sensillum trichodea and finger-like sensillum than the other types of sensillum. In addition, the femal antennae had double-bud-like sensillum and the male antennae had sensillum auricillica. Finger-like sensillum, feet-like sensillum and double-bud-like sensillum were for the first time reported presented in insects of Coleoptera. The shape, distribution of these sensilla and their differences between sexes were described.

关 键 词：云南木蠹象 触角 感器 扫描电镜 

分 类 号：S763.301[农业科学—森林保护学]