Description: [caption id="" align="aligncenter" width="307" caption="Wilhelm Carl Paul Gottlieb Heinrich (1880-1955) in 1913 joined the United States Department of Agriculture, He first worked on applied entomology but later switched to the classification of Lepidoptera, c. 1940, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 7427, Box 1,