Souza A C, Catalá S, Carbajal de la Fuente A L, Junqueira A C V
Laboratório de Doenças Parasitárias, Instituto Oswaldo Cruz / Fiocruz - Rio de Janeiro, Brazil.
Reference Laboratory for Sensory Patterns - CRILAR, Argentina.
J Med Entomol. 2017 Jul 1;54(4):909-916. doi: 10.1093/jme/tjx038.
The wild species Rhodnius brethesi (Matta, 1919) (Hemiptera: Reduviidae) is found in areas of piassabais in microregion of Rio Negro, Amazonas, Brazil. Its geographical distribution overlaps the areas of Leopoldinia piassaba palm. In areas where palm trees are found, transmission cycle of Trypanosoma cruzi is related to the extractive activity of the palm fiber, exposing workers to wild vector transmission of this parasite. The close association with the palm tree L. piassaba suggests that this wild triatomine has special features in its sensory system allowing specificity of ecotope. The objective of the study is to identify the antennal sensilla phenotype and morphologically characterize the size and shape of the wings of wild R. brethesi, and to compare with the phenotype present in individuals reared in the laboratory. From the samples taken in the field, the presence of the species R. brethesi was found on both banks of the Rio Negro. The techniques used to verify the morphological patterns are important resources for observations of the triatomine populations, be they in an artificial or natural habitat.
野生种布氏红猎蝽（Rhodnius brethesi (Matta, 1919)）（半翅目：猎蝽科）分布于巴西亚马孙州里奥内格罗微区域的皮亚萨巴地区。其地理分布与巴西棕榈（Leopoldinia piassaba）的分布区域重叠。在有棕榈树的地区，克氏锥虫的传播循环与棕榈纤维的采集活动有关，使工人面临这种寄生虫的野生媒介传播风险。与巴西棕榈的紧密关联表明，这种野生锥蝽在其感觉系统方面具有特殊特征，使其对生态位具有特异性。本研究的目的是识别野生布氏红猎蝽触角感器的表型，并从形态学上描述其翅膀的大小和形状，同时与实验室饲养个体的表型进行比较。从野外采集的样本中，在里奥内格罗两岸均发现了布氏红猎蝽。用于验证形态模式的技术是观察锥蝽种群的重要资源，无论它们处于人工还是自然栖息地。
