红环瓢虫触角感器的扫描电镜观察  

Observation of the Antenna Sensilla of Rodolia limbata Motschulsky under Scanning Electron Microscope

作　　者：张毅[1] 谢映平[1] 薛皎亮[1] 张艳峰[1] 牛秀萍[1] 

机构地区：[1]山西大学生命科学学院,太原030006

出　　处：《四川动物》2014年第4期578-583,共6页Sichuan Journal of Zoology

基　　金：国家自然科学基金-青年科学基金项目(31200495);山西省青年科技基金(2011021029-2);山西省回国留学人员科研项目(2011-009)

摘　　要：利用扫描电镜对红环瓢虫Rodolia limbata Motschulsky成虫与幼虫的触角形态及化学感受器进行了观察，结果表明，红环瓢虫成虫的触角为棒状，由柄节、梗节和6个鞭节组成。其上发现有毛形、刺形和锥形3种感器，各种感器长短不一，分布不同，其中锥形感器集中分布于鞭节的4-6亚节，以末节端部最为密集；幼虫触角短，圆锥状，分为3节，感器只有毛形和锥形2种，且数量极少。雌雄成虫与幼虫个体间触角感器的类型、分布均无明显差异。The antenna morphology and sensilla of larva and adult of Rodolia limbata Motschulsky were studied using Scanning Electron Microscope （SEM）. The results showed that adult clavate antenna consisted of scape, pedicel and 6 subsegments of flagellum. Both female and male antenna of the species had the same 3 types of sensilla, including sensilla trichoid, sensilla chaetica, and sensilla basiconica, and the length and distribution of which were significantly different. Sensilla basiconica were clustered on the 4th to 6th subsegment of flagellum with high density on the end of the 6th subsegment. The larva coniform antenna were shorter and consisted of three segments, and on which only a few sensilla tricoid and sensilla basiconica could be observed. No difference was found in the morphological characters of antennae and the type and distribution of the sensilla between the male and female larva and adult.

关 键 词：红环瓢虫 扫描电镜 触角感器 

分 类 号：Q964[生物学—昆虫学]