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 1-13
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 153-159
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, pages 38-40
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, issue 5, pages 81-83
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 43-50
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 34-38
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 50-54
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 172-190
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 191