Susceptibility of phlebotomine sandflies (Diptera: Psychodidae) collected in the field, to alpha-cypermethrin in four municipalities endemic to leishmaniasis oleh Douglas de Almeida Rocha, Andrey José de Andrade, Luciana Reinaldo Moura, Nelder Gontijo Figueiredo, Grasielle Caldas D’Ávila Pessoa, Marcos Takashi Obara