Steve’s passion for the discovery and documentation of diversity has led him to split his research efforts between studies of the Canadian insect fauna and studies of fly diversity in Central and South America.
Along the way he has identified hundreds of new species and genera, naming and describing them in the context of his work on the evolution and distribution of major insect lineages.
Marshall is a professor of entomology at the University of Guelph, where he is in charge of the University of Guelph Insect Collection. He has been president of the Entomological Society of Canada and Entomological Society of Ontario and is currently editor of the new Canadian Journal of Arthropod Identification. His most recent book, Insects – Their Natural History and Diversity, used over 4,000 of his own photographs to make insect diversity accessible to an unprecedented range of scientists, naturalists and students. He is currently working on a new book on entomological exploration.