Schmidt, S. and D. R. Smith 2006. An annotated systematic World catalogue of the Pergidae (Hymenoptera). Contributions of the American Entomological Institute 34 (3): 1-207.
Schmidt, S. and D. R. Smith 2006. An annotated systematic World catalogue of the Pergidae (Hymenoptera). Contributions of the American Entomological Institute 34 (3): 1-207.