Entomology is the branch of zoology dealing with the study of insects, although which organisms are included is open to interpretation. Probably, those animals covered by the Gk word entomon ("cut up, segmented") are appropriately considered insects, eg, the arthropods, but crustaceans (except for a few terrestrial species) and a few small, marine arthropod groups, such as sea spiders and horseshoe crabs, are generally excluded.
Entomologists study the following groups: Insecta; Myriapoda (eg, millipedes, centipedes); and Arachnida (eg, scorpions, spiders, mites, ticks). Hence, entomology embraces the study of the majority of known species of organisms.
Study of Entomology
Entomology has made contributions to almost all life sciences, from ecology and taxonomy to genetics, molecular biology and medicine. The science comprises many subdisciplines including, among its more theoretical aspects, insect morphology, taxonomy, ecology, ethology, physiology and biochemistry.
Agricultural, forest, medical and veterinary entomology (aimed at pest and disease control) and related branches (eg, environmental and pollination biology, quarantine services and forensics) are among its applied aspects. Ethnoentomology studies the role of insects in human culture.
In Canada, entomology began as an applied discipline. In 1856, the Bureau of Agriculture and Statistics for the Province of Canada offered prizes for essays on various pests of wheat. The winners were amateurs; in fact, many early contributions were made by amateurs, eg, H.H. Croft, first president of the Entomological Society of Canada (est 1863), was professor of chemistry at King's College (University of Toronto).
In 1884, James Fletcher became the first honorary Dominion Entomologist. He was officially appointed Dominion Entomologist and Botanist in 1886 and was transferred, in 1887, to the newly created Dominion experimental farm in Ottawa.
In 1914, the Division of Entomology, Experimental Farms Branch, became a branch of the Dept of Agriculture - the Entomological Service, later part of the Biosystematics Research Centre of Agriculture Canada.
Largely because of increased public awareness of the numbers of insects, the destruction that a small percentage of them do to crops and other products, and the distress caused by their transmission of diseases to humans and livestock, the demand for professional entomologists has increased enormously in the last 100 years. This demand, particularly in government, necessitated the establishment of university-level training in entomology.
In Canada, independent university departments of entomology, which until the end of the 1950s were responsible for training half of Canada's professional entomologists, were founded at U of Manitoba, at U of Alberta and at Macdonald College, McGill U.
Several other Canadian universities have departments of zoology or biology, with strong entomological representation (and often traditions), offering excellent educational and research facilities. These include the following universities: British Columbia, Simon Fraser, Saskatchewan, Toronto, McMaster, Carleton, Montréal, Laval, New Brunswick and Memorial. Some entomological research is carried on at most other Canadian universities.
Careers and Employment
Various industries also have staff entomologists and, of course, universities and museums hire some. Entomologists may also become schoolteachers or may work with private firms undertaking environmental studies. Many are associated with government and international organizations and with exchange programs that deal with entomological or other problems.
Canadian entomological societies include the Entomological Soc of Canada (the oldest national Canadian scientific society) which since 1868 has published its journal, The Canadian Entomologist; the Acadian Entomological Soc (serving the Atlantic Provinces and northern New England); La Société entomologique du Québec; entomological societies of Ont, Man, Sask, Alta and BC; and a few amateur, local societies.