The bee genus Emphor in South America

Published in 1920 in Canadian Entomologist, volume 52, on pages 9-11
Authors:

Notes on Coccidae - V. (Hemiptera)

Published in 1920 in Canadian Entomologist, volume 52, on pages 29-32
Authors: G F Ferris

Descriptions of a few new Diptera

Published in 1920 in Canadian Entomologist, volume 52, on pages 65-67
Authors:

Two new species of Aphididae from Japan

Published in 1920 in Canadian Entomologist, volume 52, on pages 77-78
Authors: R Takahashi

Some new North American Sapromyzidac

Published in 1920 in Canadian Entomologist, volume 52, on pages 126-128
Authors:

New Rhopalocera from the far east

Published in 1920 in Canadian Entomologist, volume 52, on pages 137-139
Authors:

New species of Lepidoptera

Published in 1920 in Canadian Entomologist, volume 52, on pages 161-165
Authors:

New spiders from Utah

Published in 1920 in Canad. Ent, volume 52, on pages 193-201

NEw Coleoptera. ix

Published in 1920 in Canadian Entomologist, volume 52, on pages 211-215
Authors:

Albertan Coleoptera

Published in 1920 in Canadian Entomologist, volume 52, on pages 218-220
Authors:

New saw-flies from Maine and New York

Published in 1920 in Canadian Entomologist, volume 52, on pages 233-236
Authors:

New Lepidoptera from British Columbia

Published in 1920 in Canadian Entomologist, volume 52, on pages 266-271
Authors: