David Allan Young Jr. (May 26, 1915, in Wilkinsburg, Pennsylvania – June 8, 1991, in Louisville, Kentucky) was an American entomologist who specialized in the taxonomy of the Cicadellidae and authored a comprehensive treatment of the family with numerous genera and species described and named by him.
[1] He took up a position of an associate professor at the North Carolina State University in 1957 and continued his systematic work on leafhoppers.
His Taxonomic study of the Cicadellinae (Homoptera:Cicadellidae) with 2061 pages covered 292 genera around the world and was published in three parts between 1968 and 1986.
J.P. Kramer (1978, Proceedings of the Entomological Society of Washington 80:456) declared Part 2 of it as "the most outstanding and most comprehensive single volume ever produced on a large segment of the Cicadellidae.
Young Memorial Symposium Characters for the Higher Classification of Cicadellidae was held in his honor at the 8th International Auchenorrhyncha Congress in Delphi, Greece, August 1993.