Published in Proc Ent Soc Washington, in 1951, in volume 53, pages 1-25

Published in Proc. Ent. Soc. Wash, in 1951, in volume 53, pages 25-34

Published in Proceedings of the Entomological Society of Washington, in 1951, in volume 53, pages 43-44

Published in Proceedings of the Entomological Society of Washington, in 1951, in volume 53, pages 57-85

Published in Proceedings of the Entomological Society of Washington, in 1951, in volume 53, pages 97-104

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 109-111

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 138-147

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 150-152

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 156-158

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 160-163

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 223-226

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 251-260

Published in Proc Ent Soc Washington, in 1951, in volume 53, pages 263-271

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 271-272

Published in Proc. Ent. Soc. Wash, in 1951, in volume 53, pages 273-274

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 275-280

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 295-298

Published in Proc. Ent. Soc. Wash., in 1951, in volume 53, pages 313-326

Published in Proceedings of The Entomological Society of Washington, in 1951, in volume 53, pages 327-331

Published in Proc. Ent. Soc. Wash, in 1951, in volume 53, pages 342-343