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