-
By: Catling, Paul M. - Layberry, Ross AType: ArticleIn: The Canadian field-naturalistVolume: 127Series:Issue: 3Date: 2013-12-03Page Range: 224--228Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Layberry, Ross A - Catling, Paul M.Type: ArticleIn: The Canadian field-naturalistVolume: 130Series:Issue: 2Date: 2016-04-01Page Range: 137--139Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Catling, Paul M. - Layberry, Ross AType: ArticleIn: Journal of the Lepidopterists' SocietyVolume: 52Series:Issue:Date: 1998Page Range: 98--104Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-Subjects:
-
By: Catling, Paul M. - Layberry, Ross A - Crolla, Jeffrey P - Hall, Peter W.Type: ArticleIn: The Canadian field-naturalistVolume: 112Series:Issue: 2Date: 1998Page Range: 335--337Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Layberry, Ross AType: ArticleIn: The Canadian field-naturalistVolume: 89Series:Issue: 3Date: 1975Page Range: 316--316Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: