title: Aedes aegypti eggs oviposited on water surface collected from field ovitraps in Nova Iguaçu City, Brazil.
abstract: BACKGROUND
  Aedes aegypti eggs can be collected from the water surface.
  
  
  METHODS
  Aedes aegypti oviposition from 97 field ovitraps was studied.
  
  
  RESULTS
  Of the 16,016 eggs collected, 11,439 were obtained from paddles in ovitraps and 4,577 from water. Further, 89 (91.8%) traps contained eggs on water and 22 (22.7%) traps contained eggs only on water.
  
  
  CONCLUSIONS
  In field traps, Aedes aegypti females usually oviposit some eggs on water surface suggesting that they might also oviposit on water of some natural breeding, and this possibility needs to be investigated. Eggs oviposited on water need to be considered for collecting trap data.
authors.affiliation: Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública Sérgio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
authors.forename: Eduardo Dias
authors.initials: ED
authors.lastname: Wermelinger
authors.affiliation: Centro de Estudo da Saúde do Trabalhador e Ecologia Humana, Escola Nacional de Saúde Pública Sérgio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
authors.forename: Aldo Pacheco
authors.initials: AP
authors.lastname: Ferreira
authors.affiliation: Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública Sérgio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
authors.forename: Raimundo Wilson de
authors.initials: RW
authors.lastname: Carvalho
authors.affiliation: Secretaria Municipal de Saúde de Nova Iguaçú, Prefeitura Municipal de Nova Iguaçú, Nova Iguaçu, Rio de Janeiro, Brazil.
authors.forename: Adriano Anselmo da
authors.initials: AA
authors.lastname: Silva
authors.affiliation: Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública Sérgio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
authors.forename: Ciro Villanova
authors.initials: CV
authors.lastname: Benigno
mesh_terms: D000330:Aedes / Q000033:anatomy & histology / Q000145:classification / Q000502:physiology*; D000818:Animals; D001938:Brazil; D005260:Female; D009032:Mosquito Control / Q000379:methods*; D010058:Oviposition; D014867:Water / Q000469:parasitology*
chemical_list: D014867:Water