Catalá S
Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Argentina.
J Morphol. 1996 May;228(2):195-201. doi: 10.1002/(SICI)1097-4687(199605)228:2<195::AID-JMOR8>3.0.CO;2-4.
Scanning electron microscopy (SEM) permits description of 10 types of rostral sensilla of eight species of Triatominae. The chaetica sensilla are the most abundant over all the rostral surface. On the second and third rostral segments, these sensilla are arranged in six columns along the main axis. A distinctive sensory field lies on the third segment very close to the emergence of the stylet. The total number of chaetica sensilla increases significantly on the last segment. The number and distribution of sensilla do not differ between nymphs and adults. The pattern of rostral sensilla of five species--Triatoma sordida, T. platensis, T. protracta, T. infestans, and T. guasayana--were analyzed, and the results were compared by multivariate discriminant analysis. Interspecific variability was found. The method is proposed as a taxonomic tool.
扫描电子显微镜（SEM）可描述8种锥蝽亚科昆虫喙部的10种感觉器类型。刺形感觉器在整个喙部表面最为丰富。在喙部的第二和第三节段，这些感觉器沿主轴排成六列。在第三节段靠近口针伸出处有一个独特的感觉区域。刺形感觉器的总数在最后一节段显著增加。若虫和成虫的感觉器数量及分布没有差异。分析了5种锥蝽——污色锥蝽、普拉滕斯锥蝽、延长锥蝽、骚扰锥蝽和瓜萨亚纳锥蝽——喙部感觉器的模式，并通过多变量判别分析比较了结果。发现了种间变异性。该方法被提议作为一种分类工具。
