Anopheline species, some of their habits and relation to malaria in endemic areas of Rondônia State, Amazon region of Brazil

• Autor(a) principal: Lourenço-de-Oliveira,Ricardo
• Data de Publicação: 1989
• Outros Autores: Guimarães,Anthony Erico da Gama, Arlé,Monique, Silva,Tereza Fernandes da, Castro,Márcia Gonçalves, Motta,Monique Albuquerque, Deane,Leonidas M.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Memórias do Instituto Oswaldo Cruz
• Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761989000400008
• topic: Anopheline species; habts; relation to malaria; Brazilian Amazon

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 vincinity of houses than indoors whre, 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.