The collects from mosquitoes' sample that repro-duce in leaf imbricate of bromeliads were done by two differents methods: a conven-tional method where the plants were felled and the water inside were dropped in a recipient and in the second method the samples were collected by sucking the water, so the plant wasn't felled. The number of bromeliads studied in each method was 120 plants from zero to 15 m height. The period of study lasted from january till december 1989. The bromeliads were collected monthly by each method. The score of immature was done at the laboratory. The variables studied were the number of leaf axils with water (Xi, Yi), water volume (cm³) inside each bromeliad (X2, Y2), the number of immature mosquitoes (larvae and pupae) inside each water volume from each bromeliad (X3, Y3), respectivelly, for the methods that the samples were obtained: by sucking or by felling the plant and the time (month) variable. By this study, we concluded that there is no significative difference between the methods done for a = 0,05. There is also no significative difference between both methods in each month. However, there was significative difference between the monlhs for α = 0.05.
Diptera; Culicidae; bromeliads; sampling methods