Gracco M, Catalá S
Mendoza y Entre Ríos, CRILAR, La Rioja, Argentina.
Mem Inst Oswaldo Cruz. 2000 Jan-Feb;95(1):67-74. doi: 10.1590/s0074-02762000000100010.
The aim of the work was to investigate the pattern of chemoreceptor sensilla in adults and fifth stage nymphs of Rhodnius prolixus, R. neglectus, Triatoma infestans and T. sordida in order to study differences and similarities between genera and species. Three types of sensilla were analyzed by light microscopy: thin-walled trichoidea, thick-walled trichoidea and basiconica. The number of sensilla of each three types were counted. The length of the antennal segments were also used as a variable for the analysis. The statistical analysis showed that the number of these antennal chemoreceptors had significant differences between species and between adults and nymphs of each species. Discriminant analysis separates incompletely the fifth stage nymphs of the four species and showed similarity between them. Discriminant analysis performed with 12 variables of the antennae, allowed a complete separation of the adults of the four species.
这项工作的目的是研究长红猎蝽、疏忽猎蝽、骚扰锥猎蝽和污色锥猎蝽成虫和五龄若虫的化学感受器感觉器模式，以便研究属和种之间的异同。通过光学显微镜分析了三种类型的感觉器：薄壁毛形感器、厚壁毛形感器和锥形感器。对每种类型的感觉器数量进行了计数。触角节段的长度也用作分析变量。统计分析表明，这些触角化学感受器的数量在物种之间以及每个物种的成虫和若虫之间存在显著差异。判别分析不能完全区分这四个物种的五龄若虫，显示它们之间存在相似性。对触角的12个变量进行判别分析，可以完全区分这四个物种的成虫。
