A study of the scutellum in eight Chagas disease vector species from genus Triatoma (Hemíptera, Reduviidae) using optical and scanning electron microscopy - Obara, Marcos Takashi; Rosa, João Aristeu da; Ceretti Junior, Walter; Urbinatti, Paulo Roberto; Quintero, Lisardo Osório; Barata, José Maria Soares; Galvão, Cleber; Jurberg, José (Memórias do Instituto Oswaldo Cruz, 2007)