Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 1-13

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 34-38

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 38-40

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 43-50

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 50-54

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 54-50

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 59-60

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 61-73

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 76-80

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 84-97

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 106-108

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 150-152

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 153-159

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 172-190

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 191

Published in Proceedings of The Entomological Society of Washington, in 1920, in volume 22, pages 222-226

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, pages 232-234

Published in Proceedings of the Entomological Society of Washington, in 1920, in volume 22, issue 5, pages 81-83