Burks, B. D. 1979. Catalog of Hymenoptera in America north of Mexico. Family Pteromalidae (pages 768-835), Eurytomidae (pages 835-860), Eupelmidae (pages 878-889), Eulophidae (pages 967-1022) in K. V. Krombein et al., Catalog of Hymenoptera in America north of Mexico. Vol. 1, Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington, D. C. xvi + 1,198 p.