Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 321-382

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 383-390

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 391-392

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 393-397

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 398-403

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 404-414

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 415-419

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 431-434

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 435-442

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 443-449

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 450-465

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 466

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 67, pages 467

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 84-98

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 128-136

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 137-145

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 146-165

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 166-169

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 170-207

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 212-284

Published in Transactions of The Royal Entomological Society of London, in 1920, in volume 68, pages 285-304

Published in Transactions of the Entomological Society of London, in 1920, in volume 1920, pages 99-127

Published in Transactions of the Entomological Society of London, in 1920, in volume 1920, pages 128-136