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By: Van Herk, Willem G. - Vernon, Robert S. - Clodius, M - Harding, C - Tolman, J. H.Type: ArticleIn: Journal of the Entomological Society of British ColumbiaVolume: 104Series:Issue:Date: 2007Page Range: 55--64Publication Info: [Victoria, etc.] Entomological Society of British ColumbiaSubjects: