Biosystematic studies of ceylonese wasps, XV : a monograph of the Alyssoninae, Nyssoniae, and Gorytinae (Hymenoptera: Sphecoidea: Nyssonidae)
- Washington : Smithsonian Institution, 1985
- 43 p. : ilus
- Smithsonian contributions to zoology: 414 .
- Smithsonian contributions to zoology: 414 .