Lourenço-de-Oliveira R, Guimarães A E, Arlé M, da Silva T F, Castro M G, Motta M A, Deane L M
Instituto Oswaldo Cruz, Departamento de Entomologia, Rio de Janeiro, Brasil.
Mem Inst Oswaldo Cruz. 1989 Oct-Dec;84(4):501-14. doi: 10.1590/s0074-02761989000400008.
In view of recent studies incriminating several species of anophelines, besides Anopheles darlingi, as malaria vectors in the Brazilian Amazon, we performed an anopheline survey in four localities--Ariquemes, Cujubim, Machadinho and Itapoã do Oeste--in Rondônia, the most malarious State in the Country. Twenty species were found. An. darlingi was, by far, the dominant species and the only one whose density coincided with that of malaria. On human baits it was more numerous in the immediate vicinity of houses than indoors where, however, it was almost the only species encountered. On both situations it fed mostly at sunset and during the first half of the night. It was less numerous far from houses and scarce inside the forest. Other species (An. triannulatus, An. evansae, An. albitarsis, An. strodei) appeared in appreciable numbers only in Ariquemes, both in areas with and without malaria. The remaining species were scanty. An. darlingi was confirmed as the primary local vector.
鉴于最近的研究表明，除了达林按蚊外，还有几种按蚊在巴西亚马逊地区被认为是疟疾传播媒介，我们在该国疟疾最为严重的朗多尼亚州的四个地方——阿里奎梅斯、库茹宾、马沙迪纽和伊塔波阿-杜韦斯特——进行了按蚊调查。共发现了20种按蚊。到目前为止，达林按蚊是优势种，也是唯一一种其密度与疟疾密度相符的按蚊。在人饵诱捕中，它在房屋附近比在室内更为常见，不过在室内它几乎是唯一被捕获的按蚊。在这两种情况下，它大多在日落时和上半夜进食。在远离房屋的地方数量较少，在森林中则很稀少。其他种类（三带按蚊、埃氏按蚊、白跗按蚊、斯特罗德按蚊）仅在阿里奎梅斯有可观数量出现，在有疟疾和无疟疾的地区均是如此。其余种类数量稀少。达林按蚊被确认为主要的当地传播媒介。
