Walter Leal

Walter Soares Leal (born February 2, 1954) is a Brazilian biochemist and entomologist who is known for identifying pheromones and mosquito attractants, and elucidating a mechanism of action of the insect repellent DEET.

Leal was the first non-Japanese to earn tenure at the Ministry of Agriculture, Forestry, and Fisheries of Japan. In 2000, he accepted a position as associate professor at the University of California, Davis. Leal is a Distinguished Professor in the Department of Molecular and Cellular Biology. He served as chair of the entomology department at UC Davis (now Department of Entomology & Nematology). Provided by Wikipedia