A survey of the Anopheles Mosquitoes (Diptera: Culicidae) along the Acre And Purus Rivers, Amazon Basin, Brazil

Abstract

-From January 19 to February 25, 1997 an entomological survey of the seringais and larger towns along the Acre and Purus rivers was made as part of the project "Revisitando a Amazônia de Carlos Chagas; da Borracha a Biodiversidad". Eleven anopheline species and 1285 specimens were collected landing on human baits. The four most abundant species were Anopheles albitarsis s.l. (n=778), A. darlingi (n=359), A. rangeli (n=69) and A. oswaldoi (n=60). A total of 252 larvae were collected of which 10 anopheline species were identified. The most abundant low numbers of Anopheles collected and the absence of the principal malaria vector A. darlingi at the seringais sites suggests that they arc not high risk malarious areas. Other Diptera collected were Culex sp., Mansonia titillans, Mansonia pseudotitillans, Psorophora ciliata, Psorophora sp., Coquillettidia (Rhynchotaenia) sp., Simulium amazonicum and S. sanguineum.

Prevalence and level of antibodies to the circumsporozoite protein of human malaria parasites in five states of the Amazon region of Brazil

“…In addition, vector abundance was low, particularly for the principal vector in the Amazon Region, An. darlingi (Zimmerman et al 1999) when compared to the other sites studied (Rondônia, Lourenço et al 1989, Pará, de Arruda et al 1986). In contrast, in Machadinho, Rondônia state, An.…”