provided by Catalog of Hymenoptera in America North of Mexico
The relationships of this family have not been satisfactorily established. More commonly, although with some reservations, the group has been treated as a family of the Proctotrupoidea. Until its affinities are better understood it seems best to follow Handlirsch (1933) and consider it as representing an independent superfamily.
- bibliographic citation
- Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.