Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 20, pages 161-173
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 20, pages 177-181
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 20, pages 188-206
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 20, pages 206
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 2-4
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 4-8
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 21-36
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 38-40
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 52
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 53-60
A report on collection of Coccidae from Argentina with descriptions of apparently new species (Hom.)
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 63-91
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 91-93
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 104-106
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 106-109
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 109
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 110-112
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 112-120
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 121-123
Published in Proc. Ent. Soc. Wash, in 1919, in volume 21, pages 126-129
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 156
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 157-161
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, pages 161-170
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 170-173
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 173-176
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 181-186
Published in Proceedings of The Entomological Society of Washington, in 1919, in volume 21, pages 204-205
Published in Proceedings of the Entomological Society of Washington, in 1919, in volume 21, issue 6, pages 129-151