There are 22 species of grasshoppers and 3 grasshopper relatives in Northwest Territories. Ten additional species occur in adjacent regions of northwestern North America. Eight taxa including Aeropedellus arcticus, Bohemanella frigida frigida, Bruneria yukonensis, Grylloblattus campodeiformis athapaska, G. campodeiformis nahanni, Melanoplus gordonae, Melanoplus packardii brooksi, and Xanthippus brooksi, and are essentially confined to unglaciated parts of Alaska, Yukon, and Northwest Territories. A number of species that occur in open habitats are disjunct from the prairie region. Orthopteroid insects are present in all habitats, sometimes in large numbers, and they are important as a source of food for birds and mammals and as environmental indicators. Much of the information on grasshoppers in Northwest Territories was gathered around 1950 as part of the general Northern Insect Survey. Although much is known, more study is required. Identification keys and notes on the habitats and distinguishing characteristics of the species are included. Read less