Bulletin - United States National Museum (G.P.O, 1923)

Classification of the chalcid flies, or the superfamily Chalcidoidea, with descriptions of new species in the Carnegie museum, collected in South America by Herbert H. Smith - Ashmead, William H. (William Harris), 1855 -1908 (Carnegie institute, 1904)

Classification of the chalcid flies, or the superfamily Chalcidoidea, with descriptions of new species in the Carnegie museum, collected in South America by Herbert H. Smith - Ashmead, William H. (William Harris), 1855 -1908 (Carnegie institute, 1904)

Hymenoptera of America north of Mexico : synoptic catalog - Krombein, Karl V. (U.S. Dept. of Agriculture, 1951)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1904)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1971)