Gauld, I. (1991). The ichneumonidae of Costa Rica: Introduction, keys to subfamilies, and keys to the species of the lower pimpliform subfamilies Rhyssinae, Pimplinae, Poemeniinae, Acaenitinae and Cylloceriinae. Florida: American Entomological Institute.
Chicago Style CitationGauld, Ian. The Ichneumonidae of Costa Rica: Introduction, Keys to Subfamilies, and Keys to the Species of the Lower Pimpliform Subfamilies Rhyssinae, Pimplinae, Poemeniinae, Acaenitinae and Cylloceriinae. Florida: American Entomological Institute, 1991.
MLA CitationGauld, Ian. The Ichneumonidae of Costa Rica: Introduction, Keys to Subfamilies, and Keys to the Species of the Lower Pimpliform Subfamilies Rhyssinae, Pimplinae, Poemeniinae, Acaenitinae and Cylloceriinae. Florida: American Entomological Institute, 1991.