<i>Eleodes obscurus</i> (Coleoptera: Tenebrionidae): confirmation of a Canadian population and possible northward expansion from Washington State into British Columbia in the Okanagan Valley


  • Robert A. Cannings Royal British Columbia Museum 675 Belleville Street Victoria, BC V8W 9W2 phone: (250) 356-8242
  • G. G. E. Scudder Department of Zoology University of British Columbia 6270 University Boulevard Vancouver, BC V6T 1Z4 Research Associate Royal British Columbia Museum 675 Belleville Street Victoria, BC V8W 9W2


Blaisdell, F.E. 1909. A monographic revision of the Coleoptera belonging to the tribe Eleodini inhabiting the United States, Lower California and adjacent islands. United States National Museum Bulletin 63: 1-524.

Boddy, D.W. 1965. Family Tenebrionidae. Pp.130-183 in M.H. Hatch. The beetles of the Pacific Northwest. Part IV: Macrodactyles, Palpicomes and Heteromera. University of Washington Press, Seattle, WA. 268 pp.

Bousquet, Y. and J.M. Campbell. 1991. Family Tenebrionidae. Pp. 253-261 in Y. Bousquet (Ed.). Checklist of beetles of Canada and Alaska. Publication 1861E, Research Branch, Agriculture Canada, Ottawa, ON. 430 pp.

Brittain, W.H. 1913. Report from Okanagan district. Proceedings of the Entomological Society of British Columbia 2: 13-16.

Brittain, W.H. 1914. Report from the Okanagan district: Insect pests of the year in the Okanagan. Proceedings of the Entomological Society of British Columbia 4: 14-19.

Crist, T.O., D.S. Guertin, J.A. Wiens and B.T. Milne. 1992. Animal movement in heterogenous landscapes: an experiment with Eleodes beetles in shortgrass prairie. Functional Ecology 6: 536-544.

Latham, S.J. 1995. Biodiversity of the Tenebrionidae (Coleoptera) under different grazing regimes in the South Okanagan. Unpublished Bachelor of Science (Honours) thesis. Department of Zoology, University of British Columbia, Vancouver, BC. 38 pp.

Rogers, L.E., N. Woodley, J.K. Sheldon and V.A. Uresk. 1978. Darkling beetle populations (Tenebrionidae) of the Hanford Site in southcentral Washington. Technical Report. Battelle, Pacific Northwest Laboratories, Richland, WA. 129 pp.

Scudder, G.G.E. 2000. Arthropod species at risk, and livestock grazing in the South Okanagan of British Columbia. Arthropods of Canadian Grasslands 6: 15-20.

Tschinkel, W.R. 1975. A comparative study of the chemical defensive system of tenebrionid beetles: chemistry of the secretions. Journal of Insect Physiology 21: 753-783.