Peck, O. 1963, A catalogue of the Nearctic Chalcidoidea (Insecta; Hymenoptera). Canadian Entomologist (Supplement) 30:597-598
(Parasitoid identification needs confirmation)
Thompson, W.R. 1958, A catalogue of the parasites and predators of insect pests. Section 2. Host parasite catalogue, Part 5.
Commonwealth Agricultural Bureaux, Commonwealth Institute of Biological Control, Ottawa, Ontario, Canada