Career
He was director of the Museu Paraense Emílio Goeldi (1955-1960), in Belém, and of the Museu Nacional do Rio de Janeiro. His abilities both in science and in the field of politics helped Brazil to develop and maintain a high level of systematic biology. Carvalho published more than 500 papers on the taxonomy of the Miridae, as well as studies of other insect groups.
Between 1957 and 1960 his catalog of the Miridae of the world was published by the National Museum, totaling more than 1,100 pages.
In addition, he published on the knowledge of animals by Indians of the Xingu River basin, and on the explorations of early naturalists in the Amazon.
