Dr. Stephen Marshall is a University Professor Emeritus at the University of Guelph. He completed his Ph.D. at the University of Guelph in 1982, an M.Sc. in Biology at Carleton University in 1979, and a B.Sc. in Agriculture at the University of Guelph in 1977. He has received several prestigious awards, including the Entomological Society of Canada C. Gordon Hewitt Award (1989), the Entomological Foundation Thomas Say Award for outstanding contributions to the science of entomology (2008), the Canadian Association of Science Writers Science in Society General Book Award (2006), the Entomological Society of Canada Gold Medal for Outstanding Achievement in Canadian Entomology (2013), and the Dartmouth Medal for an outstanding reference work (2024). His research interests include ecosystem science and biodiversity, insect diversity, the systematics and biology of acalyptrate Diptera, faunistics, and taxonomy.