title: Anopheles darlingi and Anopheles marajoara (Diptera: Culicidae) susceptibility to pyrethroids in an endemic area of the Brazilian Amazon.
abstract: BACKGROUND
  This study aimed to evaluate the susceptibility of Anopheles darlingi Root (1926) and Anopheles marajoara Galvão & Damasceno (1942) to pyrethroids used by the National Malaria Control Program in Brazil.
  
  
  METHODS
  Mosquitoes from Amapá, Brazilian Amazon, were assessed for resistance to cypermethrin, deltamethrin, and alpha-cypermethrin. Insecticide-impregnated bottles were used as suggested by the CDC/Atlanta.
  
  
  RESULTS
  Diagnostic dose for Anopheles darlingi was 12.5µg/bottle during 30 min of exposure. Concentrations for Anopheles marajoara were 20µg/bottle of cypermethrin and deltamethrin and 12.5µg/bottle of alpha-cypermethrin.
  
  
  CONCLUSIONS
  No resistance was recorded for Anopheles darlingi , but Anopheles marajoara requires attention.
authors.affiliation: Laboratório de Entomologia Médica, Divisão de Zoologia, Instituto de Pesquisas Cientificas e Tecnológicas do Estado do Amapá, Macapá, Amapá, Brazil.
authors.forename: Allan Kardec Ribeiro
authors.initials: AK
authors.lastname: Galardo
authors.affiliation: Laboratório de Pesquisa Básica em Malária, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ananindeua, Pará, Brazil.
authors.forename: Marinete Marins
authors.initials: MM
authors.lastname: Póvoa
authors.affiliation: Laboratório de Pesquisa Básica em Malária, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ananindeua, Pará, Brazil.
authors.forename: Izis Monica Carvalho
authors.initials: IM
authors.lastname: Sucupira
authors.affiliation: Laboratório de Entomologia Médica, Divisão de Zoologia, Instituto de Pesquisas Cientificas e Tecnológicas do Estado do Amapá, Macapá, Amapá, Brazil.
authors.forename: Clícia Denis
authors.initials: CD
authors.lastname: Galardo
authors.affiliation: Laboratório de Entomologia e Parasitologia Tropical, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brazil.
authors.forename: Roseli La Corte Dos
authors.initials: RL
authors.lastname: Santos
mesh_terms: D000818:Animals; D000852:Anopheles; D007303:Insect Vectors; D007305:Insecticide Resistance; D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins
chemical_list: D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C017160:cypermethrin; C017180:decamethrin