Published in Canadian Entomologist, in 1920, in volume 52, pages 5-8
Published in Canadian Entomologist, in 1920, in volume 52, pages 9-11
Published in Canadian Entomologist, in 1920, in volume 52, pages 19-20
Published in Canadian Entomologist, in 1920, in volume 52, pages 29-32
Published in Canadian Entomologist, in 1920, in volume 52, pages 42-46
Published in Canadian Entomologist, in 1920, in volume 52, pages 65-67
Published in Canadian Entomologist, in 1920, in volume 52, pages 77-78
Published in Canadian Entomologist, in 1920, in volume 52, pages 78-80
Published in Canadian Entomologist, in 1920, in volume 52, pages 80-87
Published in Canadian Entomologist, in 1920, in volume 52, pages 109-112
Published in Canadian Entomologist, in 1920, in volume 52, pages 126-128
Published in Canadian Entomologist, in 1920, in volume 52, pages 137-139
Published in Canadian Entomologist, in 1920, in volume 52, pages 141-144
Published in Canadian Entomologist, in 1920, in volume 52, pages 145-160
Published in Canadian Entomologist, in 1920, in volume 52, pages 161-165
Published in Canadian Entomologist, in 1920, in volume 52, pages 166-168
Published in Canadian Entomologist, in 1920, in volume 52, pages 178-183
Published in Canadian Entomologist, in 1920, in volume 52, pages 184-189
Published in Canad. Ent, in 1920, in volume 52, pages 193-201
Published in Canadian Entomologist, in 1920, in volume 52, pages 201-202
Published in Canadian Entomologist, in 1920, in volume 52, pages 211-215
Published in Canadian Entomologist, in 1920, in volume 52, pages 218-220
Published in Canadian Entomologist, in 1920, in volume 52, pages 233-236
Published in The Canadian Entomologist, in 1920, in volume 52, pages 241-245
Published in Canadian Entomologist, in 1920, in volume 52, pages 253-257
Published in Canadian Entomologist, in 1920, in volume 52, pages 266-271
Published in The Canadian Entomologist, in 1920, in volume 52, issue 4, pages 96