Omalonomus relictus, a highly modified new genus and new species of soil-dwelling rove beetle, is described from the Cypress Hills of Alberta and Saskatchewan. The structural peculiarities associated with its subterranean habitat are discussed and illustrated. Moore and Legner's (1974) key to the genera of North American Omaliinae is modified to assist in the identification of adults of the genus. The occurrence of this blind, slightly pigmented, flightless beetle in the soil of the Cypress Hills supports the hypothesis that at least part of this area was unglaciated and served as a refugium during late Pleistocene glacial advances.
The Canadian Entomologist
Department of Biology

Campbell, J.M. (J. M.), & Peck, S. (1990). Omalonomus relictus, an unusual new genus and new species (Coleoptera: Staphylinidae, Omaliinae) of blind rove beetle; a pre-glacial (Tertiary?) relict in the cypress hills, alberta-saskatchewan, Canada. The Canadian Entomologist, 122(5), 949–961. doi:10.4039/Ent122949-9